HomeMy WebLinkAbout1971_OPERATING MANUAL-HEATING & COOLING SYSTEM FIRE STATION #3 .
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Operation Manual
for
HeAting and Cooling System
Fire Rt4tion # 3
City of Denton
UNITARY EOWPMENT SERVICE INFOWTION
OPERATION AND
MA!NTENANCE
SECTION M-SUA, SUWI.l
APRIL, 1966
SUA AND SUW
DELUXE VERTICAL:
SELF,CONTAINED UNITS
(10.15 TON UNITS WITH DUAL REFRIGERANT CIRCUITS) ,
THE SPIC1FIC UNITS TO WHKH THIS BUKIET APPLIES
ARE IDENTIFIED ON THE LAST PAGE.
PRINCIPLES OF OPERATION
Unit operation is controlled by a "Fait'Off•Cuol, switch.
71te "Fan" f"ition is for continuous independent opc raLion SAFETY CONTROL'
Of rhr fin. The "Coo)" prxition is for operation of the air
unditioning system in response to a temperature control in /
hc safetyy umrruls prevent the system from operating
u e switch circuit. when a malrJrhtion ,
xcurs.
When the unit swirch is set at "Ccxd", A fan relay (FR) III(Af I'RF.SSURf? CONTR~JI. (ilf'C)
of tonr~ctor (F%) is energized, starting the fan, At the The high pressure control, sensing the comnres;ur'dis.
saint tine, if the temperature cunrru; i calling for pxrhng, charge pressure, preve•i,rs compressor motor cn'erinad or, in
in systems yj:ij jO4pumpJow,•t (SUA 3, 5 and 10 tun units extreme cases, the loss of the rclriberant charge thruugh the
and all SU\V uni(s) a ';rcuit is made through the safety relief devior' b o
sysu•rn {Sc•c Figure ia;, Y FFpcniny rile control circuit, stopping the
controls for aw ((oppressor Lontactur (CC), starting rile system %hen rile )ressure ex<ecds $Jfe operating limits. 'I?te
lu systems with ptlrnjxlown (SUA?`,1 and 15 run units) scttirtgsarc in'I'able
when ncc system calls or calling, rile Equld line solcrt<lld TABLE I-Pressure Control sEfttn c
val.rc (SIN) and control relay (CR) are energized. nc core- 9
trot relay cun;acts du$C and tlm sc)rnoid vahc (Peru, a11U'a'- HIGH PRESSURE
CONTgi
, p ) us"* Lyp~ CONTROL.
f,crvpt to flow to the low rrss.trc side of the s's• cur our '
t,I rc•fri ]ae 30
fem. The !uw presaire (ontrul (I-f'C) closes, cofrpplcting the Buy CUT IN Cur our
cirnrit to the cnrnpnssor c'ontac'hpr iC(;), starting the systrtn ~'s CUT IN
(So:e Figure 1b), sow
3110
300 so so
CInce the sySttnp i; operating, it u,n6rtucs until the tell,- -
pcr, nlrc ulncrol (s) is satisfied. 'Lilt uonpressor then :yelcs LOW PRESSURE: CON'FROI r
"If and off in rLsp"nse aI nc~ tcm uurc conrrol (s). As (LE C)
for dual (ompre.Nnr rnrxJcls if thefirst can ress Ir can
Sensing lilt uxnprc•sror suction pressure, the loss, flies.
'~'pp)1 cr,-,;rich coolin p sure crmtrol presents overlwating of the u>,n s
satin S hold the temporarurv belox. the by ripening the control circuit, stopping tfm~ct~p rrssor,
} of the rcupnd tct peratu e control nce sxtiund brit- u'h, the }}pressure drops Ex-10w that necessary for at cqua;e
prcSw,r stop:. 'I he first comptesulr continues to operate tin.
ill
rhr dcw,pod is Sarish(d. nroun c(x)ling 'file satin).; are in 'fable 1.
When uw,ling is no lungcr required the t:inEK'roure s In units Kith pumptlo•An, nc~ 1UR' pressure conrrn: his the
c<mrr" <',pcns rile control ,.ircuit. Unis ~irh„ut 9~unpcown fxrI curnrnplcrcd
aund plcon of stopping the unit what purnlxlown has
stop inuncdiarc'Iy'• 5UA7 .1 and 15 ton uni • be;in r,+ pum
do"n as the s,ll(n,)id valve ckrscs. 1(efriger:.;it is ptlml I COMPRESSOR SAFETY
t
o the !;,911 presort- side cif rile system. When suction pies. (CONTROLS
sure
contactslsupen, stopping the prasure sf rto WINIIING T1tERILfOSTAT' (WI-)
run until the "Far,-Off•Crwl' switch is manually placed in The winding rhermostat senses the compressor motor
the 'Off" ["Itiotr. tcntt>rrarure at a point within tilt motor windings. Should
lh
ral compressu.' n fxlas !rave two injepc'ridene rift; er- igada)uate motor tot-ling cause the winding remixrature
ant circuits to) provicr standb;, op,ration and 50!' ca a~;t tt ;picxcl•saivcly , r1x thcrr,i osrat opera rile controlci
rcuit,
control. P y stepping the crxnprssor.
' ® it" THE TAANE COM/AN1. LA CACtEE, WISCONSIN
-tj _W T-11
1 RNI -fT -'If• o .~es 6! ~ e CC1 A _ tukr-...
rye
{;f_}1 *SK:v ; l_i•r,1-1:-Jr1'- !
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` ~vlr if
fu Stl.[ jL•A ~'I, `1-H.I_ N-_ow ~`l w►o ~1 PC 2 CC-2 `e'' I • f,! K..,.
toll,---
K~ J n l . ♦n
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caMp Z cc'= 1 _K_'
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LINE VOLTS
II Y.I vOl,l\Ll
FIGURE le-Trptcel Control Circw;l For SUA 3. S
end eC SOW Models. FIGURE Ib-Tyotcel Control Circuit For
71/1 end 11 Ten SUA Models.
'111C comltr s is protected from overload eurren, &m.
age by built in f the ermal relay is wired in parallel with the contests of the safety con.
ovcrlrrad•devices.
1
rrols. When nc~ condition that causes the safety control u,
R.h'0 PreRveRELAY t thAY e (RR) open is corrected, the reset relay is reset by rrxwing the unit
,u p system from cycling after a safety comrol control selector from COOL. to OFF -irk] back to cool_
hat upcnltl in reslanw'to an abr,irm,tl condition, a text
OPERATION
]n.itrur.tiuns for seasonal shutdcxvn and startup are in the
'franc Refrigeration Manual, Then u, tcstart the unit, open the ware: supply valve,
I'1) srop tllc unit for a short Ixriod of rime, suet: -Ls at for the ec
our a set the unit rcontrol equired Idcgrcerr fax~ling [I~clsunitcpilirmu-
u'cr4cncl, sin,ly set the unit control selcctur of OFF, If crate automatically ill resl'ull;c to file thcrmo,tar F
ury s\arcrl is ing used for condensir?e, clone the supply
shutoff Valvc•.
PERIODIC MAINTENANCE
llsc the foilowi;ig ifcros in conjunction t/ '(h ncC pro- Once A YOUr e
(C(forc in fhc Trans Rcfrigcnation hfanuaf
Once A Month 1, If the uondcnscr svarcr circuit was drained . t the utd of
I. (:Icon tile fan belt and sheases, the cooing season, reinstall the drain plug anll refill the
it nLidicable, ins the alr condctlscr coil -Ind scan , circ~tlt.
t nrecssary (xc "C'eming the Coifs", page 5). Check [he entire refrigerant circuit for leaks,
3. On SLAN' Models, cheek (lie condenser water for S' Start the system by setn the unit control selector it
leaks, piping COOL and the thermostat at for the desired degree of cool. 01
4 ,,heck the drain pan and drain pipingg, Afake certain the 4. Check th; cooling
drain pan is h ssolut~r; clean and the olrAin piping is clear. for Propr opcfarun.acr or air condenser, if applicable,
2
Ilia r,:
TROUBLE ANALYSIS
'!he !Oluwing list of symptoms and probable causes when
used in tonjun-tian with the t•uuble analysis chart in the 7. Insufficient "ol'io' of air pr'4fng t`x;,ugh the evapc,r.
fruit Rcfrigcrauon Manual will lead ru the solution of Ror coil, c2u%`3 by curry .,r filtersippping fan hat
stone of the more u,mrtx)n opcrarionaJ difficulties. Foe tlvrse or a dirty mil (sec "Cleaning the Coil °Pagc• 5),
problems requ{rinb additional information a cictaileci prt). 3. Ikfeenvr e-xiansion valve,
cedore is pres rated in cite Nfainrcnante (xe "Expansion Valve"
I)age 4 PrK(d rots section, Page 6).
.
(OMPRF,SSOR SYMPTOMS 4 (logged d,icr, ri:vri(ting the Il,)w of liquid rcfriger.
-lilt (Scc 'I,i,l tid I inc Drier'" P. t,c 6)
(OMPRUSSOR WILL NOT RUN 1,MV DiS(;IIARGL PRESSURE
I. FAN OPF C(X)1. sw'irch And /or thcnnostaat im nso, 1. Lack of refrigcranr. Symptoms include above w')rmal
oly ser. P suetioo line rcrnpcr,uurc .,J*bVl(rW, uorina) stictien
pressure.
COMPRESSOR HUMS HUT WILL NOT START'--
GOES OUT ON OVERLOAD Check the sg Rtirx leaks, repair and ad3 tefrigetant
~ I. Low voltage (sec "Low Volnagc;" Pa 5 (sec "Adding fril;cr:nr; Page 0),
8e 1. Cclnde .Sing wvrcr tctnperatnre too low or rate of flow
1. Open citcvit in starting winding (scc "htoa>r 1r'ind• through tha• cundense•r tun high. Symptoms include be-
ings," Page 4), low normal condtnser coil remperxture L/arks excessively
3. Ilurnvd out or weak starting capacitor (sec "Starring regularinbrvalve o redueee the race ohd(luuw, the water
And Running Capacitors," Pagc, 5).
4. Ikfecrive,:unning capacitor (see "Starting and Run. 3' Cnmpresst,)r dixharge valves d:,naged or broken,
ping Capacitors," Nge 5). 4. Low temperature uurdwr c r being drown through the
5. Afo•.or winding g,.onra`+cd (see "GtuunctctJ Motor," cui! of rite air cct>,knur.
page 4). °r'„ N07'C: For thrrSC systems which are to be
G. Defective vrlrage repay (sec "Voltage Relay," Page ons, fratrcdmakes as tdoor lablcaaabt~5attccondri`
, One !cg of t,t three hue ]lead Pressure Ca,ntrol UaiuJxr as an icces.
7 p hue supply dead. Com. spry. The control rcgnlatcs flow of a;r
pressor is single phasing.
CO,\fPRFSSOR STARTS fFU1 D4'ILI, NOT thnn,gh the rondcnscr.
COINFSSOR B LO41 DISCHARGE PRESSURE COUPLET) TINUE TO 1, Low voltage (sec Voltage," Page 5) 1~'[Tli LOW SUCTION PRf':SSUItI;
L Lick of refrigerant in the system (see "Adding Re.
1. Dcde,:rive voltage relay (see '"Voltage Relay," Page 5). Iribcray"' Pp c u).,,
3. Starting capacitor weak (see "Starting and Running 4 f?xrrcmcl)' low temperature air hcing drawn 'through)
Cepacitors,' Page 5), the air nxklenser, See the note under "Low D;xhar e
4. Starting and/or running windings shorted (sec "ii(ca,.lr Pressunz," cause No. 4. $
Windings," fare 4), IIiGI! SUC;'LION PRESSURE
5. Running capacitor defective (see "Starting and Run. l• Ili) it temlKrarure in rite ccinditioned sF,atr. ?his' coh•'
ning Capacitors," Page 5), dirioa will untecr itself as the crrnditior,ed air tem-
G. lFigh discharge pressure (see "1[i,3h Discharge Pres• ti-r„ re is reduced,
sure," Page 4). 2 Faulty expansion valve (scr "Expansion Valve;" Page
7. Weak ovcrbads (sec "Ocerl)ads," page 5). G)•
8. fna:Jcquatc motor «x>1in 3 (:otnF:rcvsnr is pumping rclrigcronr bock into the
sure," Pagr in g (see "f.ow' Suction Pres• ctunpressor Suctirln thamlxr. Tltis difficulty is caused
• by broken ordlinaged suction and!or discharge valvd.
NOISY COAfPRiSSOR Notc: Scc also "Ifigh Suction Couplcd Will Low
1. Liquid refrigerant is be;ng carried back to eanpresa)r Uixhargt Pressure," Pagc 4.
(sec "Expansion Valve,' page 6). 111611 DISCHARGE PRIS5URl;
L
SYSTEM PRESSURE Ile coil outdate air being dr.,wn thru,gh
t?ac a.)iJ of cite nit cundc'nsc•r.
If the system is l)sirng capacity or nut funcrioning pro-
f. Insuf(icicv,t volume of nil being drawn through the
perly, a cheek of the cperiting prtssures, will frequently lead coil of the air eorklenser, caused by a dirty (oil ($:-e
to the clusc of the malfunctiu 'se n^,mal operating pres. "Cleaning the Cnils," Page 5) or a slipping fan belt.
sure ranges are in the charts ;*.1, . , rng on Page 8.
LOW SUCTION PRFSSURI; 3. Condensing water tcmpcroturc too high, rate of flow
through the condenser rout low. Symptoms include
Low air temperaturt' in ;Ix caklitiursed air space, 6ov'e normal cch-tdcmr coil temperature and exces•
caused r a k,w thermostat setting, sivcly warm water (caving the conderaset. Adjust the
water rei;ulating valve to increase the rate of flow or,
3
iF used, (heck the operation of the cooling rower and HIGH SUCTION PRFSSURE COUPLED WITII
corwktssing water PumP• LOW DISCHARGE PRESSURP. 1 Ir
4. Fouled condenser indicatcd by wide temperature range
difftrence between refrigerpt entering the condenser
and water Irving the condenser. Clean tht condenser Fyual or nearly equal gage readings on the suction and
water circuit (sec "Cleaning the Coils," Page 5). discharge $ides of the cornpressur normally indicate that
5. Noncorxlensabies present in refri Brant system. the compressor is pumping refrigerant hacl: into the suuion
g ch,onbcr. This difficulty is causal by damsgrd or broken
G. Overcharge of refrigerant (see "Removing Refriger- compnssor suction and/nr discharge valves.
ant," Page G).
MAINTENANCE PROCEDURES
CONTROL CIRCUIT GROUNDED MOTOR
The possible causes for a sysrtmi failure to operate can be Place one test lead of an insulation rester or megger
greatly narrowed if the control that caused the stoppage against bare mera?, such as the suction or discharge line,
can be located, and the 'other lead against one of the compressor trrmimis.'
Usi-g the system wiring diagram as A guide, test for The reading should be above 1 megnhtn. If substantially
owtinut,y across the terminals of each pressure, tempera- below I rntgohrn, a grovmfcd winding is indicated.
rare and safety control to locate the c+lntrol with the upon
«,ntacts aril the probable cause for the failure. STARTING AND RUNNING CAPACITORS
The following are some of the more common difficulties Two r,terhodi may be used for testing the condirion of a
assa-iated with the cutting-out of the various consols' , cap:ciror-a resistance rhCck-and A capacitance sea:'
OVERLOADS- --<ompressor drawing excessive current (sec CAUTION: Discharge the capacitor before do-
'.uw Volrage" and "Compressor Motor and Accessories" ing the tests by shorting the terminals with an
in this section), insaafarcd conductor,
lllG! f PRESSURE, CONTROL. bflgh condensing temper- Set the ohmmeter at its highest ohms stale And connect
ature "High Dis(hatgc,Pressure"). the test Icade to the capacir[r terminab. The ohmmeur in-
dicator should swing to the right and then slowly return
LOW PKESSUXF. COPIKOL-low suuion pressure (Ste to infinity, indicating that the d e. nitric is intact. The higher
Lnw Suction Pressure'"). the apace rate, the farther the indi(n~ot will swing and the
41INIPING T111'RAfOSTAT -low suction pressure, cum- slower the rate of return pill be.
presso, motor n )t rKCE: ing adcqua%e cooling (see "Low Suc. If the capaciwr is shorted, the ohmrncter will indicate
non Iressure") approximately zero ohms. A leaky or partially shorted ca-
pacitor will be indicated by a reading between zero and in-
COMPRESSOR MOTOk AND ACCESSORIES finity (the indicator will remain at chat reading). If the ca.
If the folio-..ing tests reveal shorted, groundtd or open Pastor is open, no rfading will be obtained.
windings, indicating a motor burnout, consult the "Motor The actual capacitance may be determined with the
Burnout" section, Page G, for the necessary steps to be taken, electrical h:xtkup illustrated in Figure 2, By applying tine
measorc•d Voltage drop and amperage to the formula stated
MOTOR WINDINGS below, a value will be obtained which should closely agree
with the capacity, or MID rating, printed on the capxiror.
SINGLE PHASE L Discharge the capacitor and remu%e the leads from the
Open the unit disconnect switch -and remove the power terminals,
leads from the terminals of the compressor, 2. Connect the rest hoc kup to the same power supply
Test continuity of the starting and running windings by which scrvr_` the unit,
placing the test leads of r' hrnmercr c cross terminals "C" 3. 7'(xr(h the contacts of the test )x)okup to the contacts
and "S," starting wine ing, e..d "C" and "R;" running wind- of the capacitor and observe the meter re.0ings.
ing.
Etch winding should lest continuous (se "Grounded CAUTION: When testing a starting capacitor, do
not allow it to rem, in energised for noire thin
Monar;')' three seconds. 'rhese capacitors ore not de•sigred
'i 11REE PHASE to withstand cxtcndc4 periods of use and will bairr. out.
Open the unit disconnect switch ant- remove the power 4. Apply ncc voltage and amperage resdingol to the for.
leads from the terminals of the cornpreasor.' mula:
Test continuity of the motor windings byy placing the test
lea&a of an &mrneter across ea,.h coin bination of two Capacity (MEIN) ..`650 x amperage
terminals. Volts 0
In addition to testing continuous, the rreasuned resistance
through each set of motor sv;ndings should be substantially If the resulting value does not agree, within 10'x, with
the same {sec "GrouMed Motor"), tit- rtting printed our the capacitor, replace the capacitor.
4
VOLTAGE RELAY (single phase Models)
LOW VOLTAGE
the holding coil of the voltage relay is aired in para Check
witlr the starting winding of the compressor. Wf,en thecexe k the 'Rage on the line side of the dis;onnea
Press,>r appraac;us switch ahrn the sysre•m is operating, if the voltage is more
running speed, the voltage Jr across than 10'f below the voltage rating
the coil becomes sufficient for it to oxy~ -the toorm 'T closed rkxify the local ;wv: Cr company u!`~ c~Pf~'r `IYNpr!„ ,
relay contacts, removing the starting capacitor from the CLEANING THE COILS
c,rcuit.
The operation of the relay may be checked in the follow- EVAPORATOR COIF.
tog manner:
1, To make certain file contacts of the !clay a l stream Tr) oflwaterlor lowMprcuureoRi►Use a vacuum cleaner, a
when the relay is de-energized, rctnorv,c 0% capacitor
lead from terminal "1" of the relay and test continu- AIR CON[)f'.NSF:R CUfi,
ity across terminals •'I" and "2" The circuit should test Clean rile coil byy busing with cool water. NEVER USE
continuous. NOT WATER- +lan crous
2. With the control Circuit energized (calling for cooling) coil. g pressures may develop in the
touch the capacitor lead, previously removed from WATER CONDENSER COII,
terminal "1," to terminal "2" of the relay,
3. Attempt to start the compressor by closing the dis- it) Crem ovee acorn b,a d cscale. C OUSuIt 2 watery treatment
connect smirch. if the compressor starts, quickly re- firm for recomnxndafions. Follow the instrteaiops sup4llc4f
move the capacitor lead from terminal "2,'• with the cleaning agent. A typical cleaning hookup is
CAUTION: Whether the compressor starts or shown in Figure 3.
na, do not allow the capacitor feed to remain
in contact with the relay terminal "2" for more ON IO AND 1I ION MODELS; CCNEC7 :
than 3 seconds. CONON C DISCHARGE AANUS FLUSH.
If this roctqure starts the compressor and it conti:lues to CONDENSER ESAND IA
run satisfactorily, assume the voltage relay is defective and
must be replaced.
ORArN
'
_ IIUGS
FIGURE Cleen;ng As Condenser
EXPANSION VALVE
VOLTMETER OVERFEEDING
(h,erfccding of the evaporator coil usually is caused b)
the remcxe bulb r if the expaminn valve power elemcrt mx
making g(x)d contact with the suction line.
FUSE This conditkon is tt,treocd b , hft' th
ing straps and making ccrrainth t full ~lccntf bulb m~xlyotr
is contacting the bare suction line. A r :he ulh
AMMETER
uNDERFFa:uING
Underfeeding of the irxlcoor cod caused by an inopcra-
tivc power clement rtsults in an abnormally low suction
I;c'ssurc.
Test operation of the power clement in the following
TEST manner.
CLIPS 1. Stop the systetm, and allow floc suction line to warn
FIGURE 2---Cepe6tor Toil Hookup up to room tcmlKraturc.
2. Remove the remote bulb from the suction line and
OVERLOADS place it in a container of ice water.
Place a clamp-on volramrneter on one of the compres- 3. Start the system.
sor leads and start t`tc comp essor. Note the amperage at
which the overload curs out. d• R"mgve the bulb from the ace,<itainer and warm it In •
rhr. hand. Ar the same time, feel the suction line. If a
If the amperage is less than 11 S of the compressor full temperature drop is noticed, the power element is
load amperage rating, the overl"d is defective and should operating. if there is little change to the suction lest
be replaced. temperature, the power element is faulty and must
5 be replaced.
WARN(Nl;: In Checking operaciop,ol cbt valve, ~ r
do rwx allow liquid to enter the svErilxt line fJf
any longer than is ncceuury, Excessive floodback
r
will damage the com r
essor.
ADDING REFRIGERANT
V tV
A
Small amounts of reftigcranr niay be added to the system
"
in gasstate rhruuglt rile gage Ix)rr of the compressor , T\ •
suction "'Jive. Refer •
W Low Side Char \
frif,crarion Bing in tile Tranc Rc.
11Sanual. '1„`
REMOVING REFRIGERANT
If ahnurmalfy high discharge pressures persist after 211
other i" ib!e causes have been checked, rerno%C a small
gage u"t of rfhe comp,essor sucRrion valvetcgra
n d crack the
valet, ear of the backscat. Allow small amounts of refriger-
znt gas to escape until the discharge pressure falls within
the design range. Additional information is in
Refrigeration Manual. the Tnn
LIQUID LINE DRIER FIGURE 4-Rsrn0vinq the lt.,ringc /
A restricted drier is indicated by low cucrion pressuro, a
temperature dro in the liquid lirre across the drier or in
severe cases WATER COOLED CONI>GN$1 R
symptoms' OC restinngg of the V of ih
bod drier. If these
?buY 1 , replace the drier. Relieve the ref igerant charge. To prevent moisture fr6m
condensing inside rile piping, wait on{il t
MOTOR " BURNOUT ing has reached nx,tn cc,nl>e•arure before he re refoprigeeningrant tltc
pip-
The cause of a comprc or m system.
carefully zeal zed and motor t't'r~r must be located,
s
ul!cd.
Y corrected Cut the Iwtr gas and liquid lines nt convenient points. Dis.
before a replacement is in. cunnert the water sttppl1 and return !ices at the unions. Re.
When the rnr?s'c' the condenser mounting tx,1rs and lift out rIx• con.
motor of a h-rmctie cum denser.
trmdrraturrs develop within the compressor catusingga
',reakdown of rltc oil and refrig !ie(.ue installing a nca amdc'nscr, rcpfuc tile rcfrigcr,tnt
erant. T'hc resulting prod. drier,
ucts--acid, moisture and sludge--ate extremely corrosive
and must be thoroughly removed from rile system. Repeated •
burnouts will occur if all of the cyntaminants ate not Nate N01 F: Use silver solder for all sweat crjr;..ec•
ed• rions, rclnov. CAUTION: f}) not allow the s,',idbe or oil to vnstall the new condenser. pi~
`ontact the skin. Severe burns may result,' ' ' ' rc uirc.l• Cnnncu tilt sat , , • tile' refrigerant eiunio s
burn on the water and ihcckafrN lretur lines eaks. Whcnt rlt t cirisrallt .11
7rane rcrommcads Li
the suction line filter drier nte,lllod of tilt sysrern,
rr muv rear, ccafu;tte, dcl,ydrard vtd Jurgc
ing contaminants resulting from Wtnpressor motor on is uunpletc, Icak
burnnut. For information on the recommended pro (
xcdurr
and materials, contact the local Tune sales office:. •Gi~fpRFSSI)R
REPAIRS AND ttrbingcrf necres,atryri[jnswear l thc suction r~,nd e dicctlhrargcoht eel
PART REPLACEMENT at rl e uif oe( ssor. 1)iu, nucct 'I),. irinb Remove nc~ coin
.
FAN HIiAR1NGS pressor nmnrnring fxrlrs ,tnd life out the c0mprcss4ir,
To replace the fan bearings, first rcmuve the fan belt.
Then l . Install the' I,(%%, a tnpreswr. SHrat the suction and dis
xnen the fan shaft lucking collars. Slide the shaft and
fain phccd assembly to one side of the hargc' line umneuwns CrKrnur dscr control t,ibio
cl-ks nut clear the bearing, loosen the / using. wheel If the sh wt clcctrical wiring. Leak rest, evacuate, dchydr;,re, and w;,Xe
and slide' the shaft clear of the hearing, rile systcnt
E,caring out of tile' holder as indicated in Figure 5 rile free ,
1'o insrad a ttew bearing, simply rotate the fxaring into AND CHARC N~;
he L f.,n Khc(! LEAK TESTING" EVACUATING, DEHYDRATING
x_sin (wj to the fan shaft intu the W:w bearing, and slide
the opl+ositc side of the housing. Repeat place insrntctions for leak resting, cvacuarinS (ft..
lie I'VKCd ire to chant c d,e other bearing. Corn
With 111c, n(-%, bearings in place, center the shaft between iwlatcdtfrontrI thctr file Refer (Ile '1'r;me Refrig1)(Ir f .
IC two bearings, and tighten the collar setscrews. Cc et%L the furgcrlsc tints tlrar nc~ cumpresu, as ships cd, cannrx
n x•r;_-cl in the housing and tighten the '.:t shaft scrscrc%s. nr Ii -SL A SUlzrl.2 for
anually rurate tile fan to check free`, m of rotation. Rein.
Ill the fan belt and Mition
I an
ision; a I" deflection uncJetf ligghcthandrp~essuref at rbher
otcr of die belt is roccmmcnded.
6
CHAR( I. OPERANG PRESSURES
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CHART 4-OPERATING PRESSURES
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MODEL TYPE NO. MODE! TYPE NO.
SUA 301A 167-19A SUW 301A 167-11A
SUA 303A 167-20A SUW 303A 167-12A
SUA 304A 167-21A SUW 304A 167.13A
SUA 501A 167-22A SUW 501A 167-14A
SUA 503A 167-23A S+J W 503A 167-15A
Sf!A i04A 167-24A SUW 504A 167-16A
SUA 753A 167-25A SUW 753A 167-17A
SUA 754A 167-26A SUW 754A 167-18A
i SUA1003B 672-103A SUW1003B 672-101A
SUA1004B 672.1 WA SUW1004B 672-'.02A
SUAJ5030 672-107A
SUA15046 672-108A SUW15038 672-105A
SUW1504B 672.106A
1
Una TM T,,m CwWny he$ a policy of Contlm,NI oche,
W mproranwnl, it raurria the right to chama iprcifluCerta and dtl4n wftAaR rotlta.
PRINTED BY P.D.-N.
i~SJA, SI1G11.).-8-b56-R. F.
11
i
VAITARY EQUIPMENT SERVICE INFORMATION
R OPERATION AND
MAINTENANCE
SECTION M-RAS1
CONDENSING :SNIT SMASID MOViMBERES 1 s,
SATED AUG w
f DATED sus.. neri
SPLIT SYSTEM,
SWEAT CONNECT
MODEL TYPE
RAS 61A,B 269.2OA,AR T
RAS 63A,B 269-21A,!
RAS 64A 269.22A
RAS 73AtB T
RAS 74 B
A 230. 24A
PAS 83 25A,C
RAS 103~i' 2099
RAS 104A 269.102A
RAS 123A 269.103A
RAS 124A 269-104A
RAS 153A 269.105A
RAS 154A 269-106A
OPERATION
CONTROL SYSTEM
~T[ANOSTAT
The control circuit illustrated in Figure 1 is reptcsenta. { I a~~
r-fn I ~
tive of Model RAS 60 single condenser fan and tTxxor ' L
units. Model RAS 70 80 and 100 units contain two and
Model RAS 120 and'150 unirs have three condenser fan _ nt
and motor assemblies. Unit operation is as described below I c VC 4 Att s- ~tt T '
except that when more than on,.: condenser fan assembly is ' 1° '
used, they are cycled by a built: in fan remprature con. cit~ ° 11Z J I
trol(s). The first condenser fan op, ra,(•s with the compres• z y s c I~ s
sor. See "Fan Temperature Control" ((r additional informa•
tion. __~1AOM1, t< VA IRON
AU 3 3~t 1~
IItAOt
Systcm operation is governed by the room thermostat. Ku tear
As shown in Figure 1, the control circuit provides for either rrAV, TA►
0-4
automatic or manual control of the evaporator fan and
system pumpdoa n. u►KiroR
cc a c
It o--
When the thermostat tails for cooling, the evaporator l7 0 - ib-
fan relay (1), liquid line solenoid valve (2) and control re-
lay (3/ arc energized. This s,ar(s the evaporator fan, opens (0AiP455uR
the liquid line solenoid valve and completes the control cut
circuit to the low pressure con«)l (A). Rising low side Arcs- nubttatpt
sure, due to the opening of the solenoid valve, doses the
contacts of rite low pressure contr-)l energizing the compres-
sor contactor (5), starting the compressor and ccnder(ser 9-_--
fan.
7~ FIGURE I-liner Diagram Far TypieAl,`0!.7)0/60/) Cin:V#
b 114 THE TRAMI COM►AM7. LA Ce011L w11COM11M
1
When cooling i• no longer need!d, the contacts of the TABLE I-•►r..iwe Ceelrol s.H npr
thermostat open, de-energizing the fan relay, solenoid valve
and control relay. After the solenoid valve and control relay taw NTRROL ~e NraCONTROLRic
have been de-eo',rglzed, the control cIH-4rt to the compres- ' CUT IN =to- e2 T-rN CUT out 405
sor caractor remains closed through auxiliary contacts on the contactor. The comprc wr and condcav•r ran continue - sae -
to operate, pumping down the system, until tl'• contactor
is de-energized by the opening of the low pressure control
(4)' WINDING THERMOSTAT (WT)
DUAL. CIRCUIT '.,.-41TS Located within the windings of the , ompr ssor motor,
The Mndd '<AS 100, 120 and 150 [foots hate dual core the winding thcrmo;tat (9) stops the compressor should the
cuit conaemcr coils. F16. coil circuit i; piped independently motor temperature rise excessively.
of the other. F.ach ;ircuir '.,as separate operating controls OVERLOADS (01.)
similar to chose riiustratcd ir, Figure 1 and Jest ibed above.
The compressor rnoror is protcr,ed from overload cure
Dual rirevir unit operation is controlled by a two-stage rent damage by external thermal overload devices (10-
thermostat. Figure 1). All condenser An motors contain inherent over-
OPERATING CONTROLS load protectors ( I I-Figure 2).
RESFF RELAY (RR)
LOW PRF&FIRE CONTROL MPC) the contacts of the reset relay--(12) open automatically
-he low pressurr conr*ot terminates the pumpdown <yck what either the high pressure coi..•n: •%r:nding thermostat
when the suction pressure is reduced to the cutout setting or compressor overload cut out, This prevents the system
(approximately 20 psig), firm recycling until the condition which caused the cur out
A second function of this contro, Is to stop the compres- is remedied Bird the relay isttyet,
sor should suction pressure fall be.w that necessary for The relay 13 reset *1 turning of f,tr; control Jciiiiier u the
i0ec-tare comprew-4 moat cooling: Control settings are thermost:t. Wh4d we control powc, is agaid ttaded ob' tlrE
shown in Table 1. relay will remain dosed if the cr,Ki+tion which caused the
FAN TEMPERATURE COA'."r-111, (FTC) stoppage has been remedied.
The function of the fan tPrrtpetarure control (7•Figore 2) SHUTDOWN
is to cycle oi,e of the condenser fans to control condensing WEEKEND ;IiUTDOWN
pressures. At ambient temperature;-, below 65 dcgrzes, one
fan operates with the compressor. The second fan is operate To shut down tar s short duration, arch as over the week.
ed by the fan temperature control which closes its conta<,.. end, turn the system off at the thermostat,
to operate the fan as ambient rernpcraturcs reach 65 degrees
or
or over. On RAS 120 and 150 units, the third fan cycles off main Allow the disconnect switch to re-
as ambient temperature drops below 45 degrees. h:nnur closed. to -ontiThisnuc w to will : fuunctincut the crankcase
roon, prevcntlnk
refrigerant from crnadcnsing i.. the oil sump.
SEASONAL SHUTDOWN
I For seasonal shutdown, pump the system down and close
f rv, the liquid line and hot gas line valves at the condensing
unit. See "PUMPIX?WN" in this booklet.
r<~ata no,i`t" « ~ START-UP
u WEEKEND START-UP
l lLpr
No special precautions are necessary when restarting
Cot ItOitM ta.FF r the system after a shur'uwn of short duration. Turn the
J
! rb system on at the thermostat.
q-.,Lp
SEASONAL. START-UP
FIGURE t-Lina Diagram For Fan Tarnparature Control Wiri,.g Before starting tha system for tt,e season, perform the
procedures outlined under "Once A Year" in the "Periodic
Maintenance" section.
SAFETY CONTROLS NOTE: Close the disconnect switch and al-
low the crankcase heater to operate for p•
HIG1? PRESSURE CONTROL (HPC) proximately 5 hours before starting t:v come
T} a high pressure control (8), stops compressor opera. pressor. This will remove any oindensed
refrigerant from the oil, preventing damage
tion, preventing overload, should condensing pressure be- to the compressor,duetooildilution andin-
come excessive. Control settings are shown in Table 1. sufficient bearing lubrication.
2
PERIODIC MAINTENANCE perform the following pnxcdures at tie inicnals in.ii- 10. Install pressure ga)res on the ports of the liquid ,nJ
catcvi suction line valves, anJ make sure all service valves ar.
open.
ONCE A MONTH 11. Start the system and compare one gage readings Lei
1. Clhcck the belt tension of ills cv~. •.raror unit f..n. A one the normal operating pressure r:roes conranned I-,
inch depression under light hand presurc is normal. Tabic 2.
the gage read: s arc not normal, co-ssuln the "Trou•
If
2. Inspect the coals of the evaporator and condensing unit. bIc Analysis" section,
Clean, if neccs%ry.
3. Inspect the f ilu'rs. Clean or replace if rit- saty. 12. Place a clamp-on vwdr~Imneter on one of the compress
I sex leads and check the motor amperage. If the read-
4. Import the drain pan and piping of nhe evaporator unit. ing is in cxcc:ss of Ili(: .o,: pressor nameplate full load
Cl".i the drain pin, if ncLessary, and make sure nhc amperage rating, stop the compressor and consult the
drain line is clear. "Trouble Analysis".^etion.
ONCE A YEAR
lk-fore the system is started for the season:
TABLE 2-Normal Operating Prenwei
L Yerfonn procedures 1 through 4 undo "Once A
Morth". OUTDOOR AMUILHT TEMPERATURE
e S- 7E „ -L5 Se _toE I3S
2. Clean theeastngoftoccondcrs:cKunit. U", uIRnES PRESSUREStrsna}
3• Replace worn Jr fr.yea evaporator Unlt belts. RAIGO SUCTION 6144 61 86 6$70 15173 72.7E
DISCHARGE i:::l7 261.171 2+5.305 535.311 310.700
4. Manual I torte the Fan of the condetlsing unit to make RAS70 weTloN 1$10 6/a: 1 a4 7:.76 71.11
certain than it runs freely. DISCHARGE 1111 941 31$216 300.910 331451 381.351
5. With the disconnect switch ck7scd, check the ComFre8• RA[SO SUCTION 62 of 244.00 17.71 1573 72.76
DISCHARGE 221 211 155465 292302 321 335 S54-37e
sor crankcase heaters for proper operation, They should - sucnoN 6e 16 64 11 63.71 6+•7s 1:•76
be hot to the touch RA~100 DfSCMARGE 217 711 246 256 A7044 320330 35$36•
6. Inspect the control panel wiring, certain that the RA{ILO SUCTION fl 61 1141 7276 71.72
111 259269 337.347 376-386
insulation is intact and the connections are tight. 2 6r Ss {1 86 13 72T6
RAl160 2~6I3{ 307IS7 322342 111!.!
7. Inspect rate compressor contactor. It the contacts ap L~ i
te: Above information based on:
pear bklrncd or pitted, replaea the contactor (sec Figure no t Evatorator conditions la degree DB and 67 degree wB
4). air enkering evaporator coil
2. RAS60 - 70110 rFM
8. Clean the drain pan aryl piping of the evaporator unit. RAs - ~ CTMM
9. Using a leak detector, chock all refrigerant piping and RA5120-1OM C2'M
fittings for leaks. RASI50-4400o Cs•M
TROUBLE ANALYSIS
The following lists a scrits of symptoms and possible COMPRESSOR HUMS BUT WILL NOT START -
causes for some of the nwre common operational difficul• GOES OUT ON OVERLOAD
tics, 1. Low voltage (sec "Volrage", Page 5).
2. Faulty capacitor (sec "Capacitor", Page 5).
COMPRESSOR SYMPTOMS 3. Voltage !clay defective (see "Voltage Relay", Page 5).
COMPRESSOR WILL NOT START 4. One leg of 3 p' ase power supply is dead. Comptessor
1. Blown fuses or power failure. is single phasing.
2. Open control circuit (see "Control Circuit", Page 4). 5. Faulty compressor contactor (see "Contactor", Page 5)•
3. Loose or broken wiring. 6. Motor wind'ngs shorted or grounded.
Faulty contactor (see "Conta(tor", page 5) 7. Compressor seized.
5 Faulty control relay (see "Control Relay", Pagc 6). CONTINUE STARTS BUT WILL NOT TO OPERATE
6. Liquid lire solenoid valve failing to open low pres•
sure control open (sec "Solenoid Valve'", Page 6). 1. High er low voltage (see "Voltage", Page 5),
• 7. Open circuit in motor windings. 2. Low suction pressure - system short cycles (see "Low
Suction Pressure" in this section).
8. Ih..tl circuit units only - faulty time delay relay, pre'
vents lag compressor ;;.ml starting (see "Time Delay 3. Excessively high discharge pressure (see "High Dis-
Relay", Page 5), charge Pressure" in this section).
3
i~
4• Weak ove-load (see "Overloads`, Page 6).
N
~ bfotar overheating fsee "Voltage", 5). 5• refer rive expansion vaJre "
6. SAortcdor r Page 6) sce Expaasion Valve'
g ouWcd motor windings r Page
COMPRESSOR RUNS CO t'• StlPcrhect set too ! '
NTINUOUSLY LO`V D],S(H.tRGEtPR8h
Fk Exearuron Valve", Page 6).
I• Excessive cooling lvad •SSURE
2, Liquid line solenoid valve stuck o I• o+~'condensirgaittem
tern unable to pump down pen ()r lcakir,g sys• pcr.rare.
G). (see "Solenoid Valve", page Fc„ t
3. Com
Compressor is not Pumping due to broken or damago! those systems wl,i:h are to be 41
valves. t)ns, under logy outer -
r,~ns I f arrc nukes avall;ble t thhe Automzcic
4• Conrrol miring shorted.
Nryd i'ressurc C
°nrr°1 Damf,e: as an accts.
S COmpressor contactor stuck of SO. Y. which functions to prevent the head
contacts a'cldcd. r 'r uror~r f s IS cm 0 xr below that necessary
accompanied by low suction pressure. ~ ill be
COMPRESSOR DRAWS or y pcration.
}iIGII AMPERAGE
1. Loa voltage (see "Volta c" 2. Compressor unable to develop
I Lz vole! 8 Page 3), pressure bkcaux of
y high dischar a damaged or b oken valets, head
charge Pressure-). 8 pressure (sec "high Dis• LOW DISCHARGE
WITH
LOW SUCTION PRESSURE
3. Faultycapaciror (sec "(apaci(or", Page i). .SSURE
4, Shonedor round 1• System short a refrigerant -check for kaks and add
8 ed m)cor windings, refrigerant (sec "Addtn
3. Overcharge of refrigerant. B Rrfrierant , page G).
G' 2, under "LjO low CO~e Prcu air temperature. See
~Pr~tor bearings seising. Low Discharge Pressure", note
COMPRESSOR IS NOISY NIGH SUCTION PRESSURE
I• Excessive amounts of liquid refrigerant carried l Heavy COO'i nreg L loaoad. T?ti, c
compressor (see "Ez back to as the load :sd,
condition will correct itself
duc
panston Valve', Page 6).
SYSTEM PRESSURE SYMPTOMS 2 Pape 61on valve over•fcafing (see "Ez
the system 8 ) pansion Valve",
stem is losing capacity or is 3• Compressorvalves arcdame e
Pt pCtlY, a check of the operating t ~ functioning
!e2710
a to the chuck for the malfunPte suns will frequently NIGH DISC 8 dot broken.
tngran8tyarecontainedinTablt 2, Thenorr~,d IiARGE PRESSURE •
opkrat- I. Insufficient flow of air throwg h
LOW SUCTION PRESSURE caused by dirty or obstructed the condenser coil
I. Insufficient volume of air 2• Abnormally highcondensingair omperatu C°tor failure.
tot coil - caused b Passing through the cvapora-
fan belt. Y dirty filters, dirty coil or ;lipping 3. Overcharge of refrigerant,
2• Liquid line solenoid valve restricted or sticking 4• Air in thesysrera,
Solenoid Valve", Page G). 8 (see HIGH SUCTION
3 clogged
WITH
liquid line dryer (sce "Dryer", page G DISCHARGE PRESSURE,
4• System short of refrigerant - ) Equal or near Equal a
refrigerant (sec A 8 check for leaks and add 8 Re readings at the liquid and suc•
" d tioa line shuto valves normally
o Refrigerant", Page 6), rs Pumping refrigerant back into rh asuaiont line`o71us d fr
MAINTENANCE PROCEDURES ficulrr is caused by broken or clamagcd valets.
CONTROL CIRCUIT
HIGH PRESSURE, CONTROL - Nigh condcns n
if the `Possible cause for failure ten be greatly n.vrrowed Perarure (see "High Dischar c r
ntrol that caused the sru R Pessure")• 8 rem.
PPage can be loci red. LOW PRESSURE C
The following arc some of the more common difficulties ON'I ROh
associated with retie (X~ LOW Suction Prescott"), )~''c' suction pressure
R-our of a control CONTROJ. CIRCUIT FUSE -
OVERLOADS ~ ed or overloaded with accessor e-°nrruJ circuit is short.
Compressor drawing excessive am r- is the problern tither increase the sizenof rhef toransforme~
a8c (see "Vol(age", •Tfotor Windings" and "high D;j-
charge Pressure"), or Power the acccssorics
with an auxi!iaty transformer,
WINDING THERMOSTAT -
receiving adequate coolie Compressor motor not If the following tests revel shertell
"Low Suction Pressure en
is operating under high o (see or windings, indicating a motor burr)otrr' grounded or brok
vvoltage c,xxfiriorts (see "Voltage") Burnout" section, Page 8, for the neces consult the "Motor
be taken. ry precautior,s to
4
CONTINUITY TEST VOLVAGA
Open the condensing unit disconnect switch and remov: With the unit in opcratinn, test the voltage on the line
the power leads from the terminnls of the compresxu, side of the disconnccr switch. If the voltage is more than
• SINGLE PHASE: 10!'f af,ove or below the voltage raring of the compressor,
notify the local Power company.
Test the continuity of the start and run windings by
placing the probes of an ohmmeter against motor rermi- TIME DELAY RELAY
pals "C" - "S" and "C" "R" (xc Figure 3).
If a meter reading is rbtained, the winding is continuous.
(I?ual Circuit RAS 100, 125 and 150 Units Only)
The time delay relay delays starting of the lag com-
pressor to limit in-rush current at start up, If the lag corn-
prrssor (ails to start or is not delayed in starting, the relay
® or relay wiring may be faulty. Check and remedy as neces-
sary.
CAPACITOR (Single Phase Units and Condenser Fan
S A Motors)
® ® ® CAUTION: Dixhargethe capacitor through
a 20 to 30 ohm resistor before handling.
C
RESISTANCE TEST
Before testing a start capacitor, remove the bleed resistor
FI6UAE-Tres. Modal "J" t;o nFtrster Twminal Block lead from one of the posy of the capacitor.
THREE PHASE: Set an ohmmeter it the RX I0,000 ohm scale and comae
the test leads to the capacitor terminals. The ohmmeter in.
Tat continuity of the windings by placing the probes of dicaror should swing and then slowly return to infinity,
an ohmmeter against each two-terminal ctxnbination. A indicating that the dielectric is Intact. The higher the ca-
meter reading should be obtained across any tv:o of the pacitutce, the farther the indicator will swing and the slow-
three tetmituls. er the rate of return will be.
GROUND TEST If the capacitor is shorted, the ohmmeter will read ap-
Place one of the test leads of an insulation tester or meg- proximately zero ohms. A slsotted or partially shorted ea-
ger against bare metal, such as the suction or discharge pacitor will be indicated by a reading between zero and
line, and the other against each of the moor terminals. tnftn'ty (the indicator will remain at that reading). if the
The dial reading should be in the one megohm to infin• capacircr is open, no rcadin~ will be obtained.
ity range. If the reading is substantially below this t, ge,
a grounded winding is indicated and may be due to insula- NOTE; An open of alerted start capacitor
t ion breakdown or con tarn ination bymoisture. (may be the result ) a faulty voltage relay
see " Voltage Relay""),
Voltage unbalance on three phase systems can cause
motor overheating and eventual failure. Maxi!,num allow-
ab'e unblance is two percent which must b:• measured at VOLTAGE RELAY (Single Phase Units Only)
the compressor terminals. Voltage unbalat,:e is defined as The operation 100 cimes the surn of the dcviativo of the 6iree voltages in manner. of the
relay may be checked in the follow-
100
the average divided by twice the average voltage. Sign g
is trot regarded. If the three measured voltages are 221, 1. Remove the wire from terminal "2" of the voltage relay.
230 and 227, average voltage would be:
2. To make certain the relay contacts are closing when the
221 + 230 227 relay is de-energised, test for continuity across relay
3 = 226 vo,rs terminals "I 'and "2". The reading should be continuous.
and the percent voltage unbalance would be: 3. Reconnect the wire to terminal "2" of the voltage relay.
100 X (226.221) + (230.226) + (227-216) 4. Attach a voltmeter to terminab "I" and "2" of the volt-
2 X 226 ` 2.2% age relay. Ux 0 to 500 vale of !nigher.
In the above example, a .1.2% unbalance is not acceptable CATMON: Normal voltage at thew points
and the power company should be notified to correct it. exceeds 300 volts.
If the voltage supplied to the disconect is within toler• 5. Starr the unit and c~fnenr the voltrtsetet reading.
ante, and low voltage is found on anyone or all three a. No reading, irsdicates welded contacts or a defective
phases at the compress,-A, there may be a loose connection voltage rt i,y c AI. Replace the relay.
in:hepower wiringcursingavoltage drop. b. A reading i:.dicates the relay contacts have opened
Single ph,:se compressors should be checked for proper and the relay is functioning normally.
vnltagt. across terminals C-R only. Voltage measured across CONTACTOR
C-S terminals will be subsrantially higher than line voltage
and cannot be used to determine if correct voltage is being. 1. Inspect r%e contacts. If they appear pitted or burned
supplied to the compressor. s rep ace the contacts or contactor (see Figure 4).
~ttttttttasssa
OVERLOADS
New Confacfs--Smooth surfacer, may ' Place a clamp-on ammeter art one of the compressor leads
br tarnhh. Y be bright, dull of d;uo aed and Starr the compressor, Now the arnperr„e 'It which the
overload cuts out.
If the amperage is below 115~'c of rl:e Compressor full
~=~tsra load rating, the overkad is defective and must be replaced.
DRYER ,
Normal War-Surfacrr mildly pi}fad, dircolorQd areas •ith r
blue er brorn. 75 ~
1 A restricted dryer is indicaud by !ow suction
N
Wo of mur rfi I intact, SHg6! ha a black' ten7pcrature dropr(, ssure a
with o no fiff~ng. C o nlaclr
r};ll r.n•ice~6le, 9 of edger p across the dryer and in severe cases a
frosting of the dryer body.
If these symptoms. are obscrvcd, pump down the system
-j y and replace the dryer (see "pump jown", Page B),
8edly Wan-Svrfua badly SOLENOID VALVE
Bayc• conlaasor, y eroded. Edges leathered and lifted.
When this pilot•operared liquid line solenoid valve is
FIGURE 1- Conrad Repf.c.m•nf Guide cu
fu ope, ll t hn hf thee v lge is fail sides oo s
2.
to a
f the r pen, aual is worst to ly due 2. Using an ohmmeter, te;~t continuity of the contactor bienlt temperature IE~° atJ a di the i
holding coil, If the roil dots not rest continuous replace not closing-off tightly,
it. them will a pn8 will be at am-
gh is ruptured or is
3. To test the contactor for continuous circuits cure drop across the valve, noticeable tempera.
a. Remove the compreslor or fan If the valve is not operar'ng properly,
contactor. rancor leads from the I. Make certain there is control
b. Remove the contactor over, pK to the holding coi.'.
C. Fmr i 2. Lightly tap the valve body. The valve plunger may be
g u the contactor, stuck,
J. Visually note if the contacts arc closed or rest with a 3. Test the continuity of the valve coil,
voltmeter across terminals "l.l" •
'72 and"ete•"Tl"er ores. ,""Ll".'T3" If these tests fail to show the cause for malfunction,pump
indicates '71 (see
whi~ a no voing4 reading c ding down the system
cares the contact onrin being rested o not dosio g ble the vat ( e 6), Rown Page 8) and necessary.
8 properly. (sec, Figure G1. rpair or replace ,y necessary,
VOLTMETER REMOVE LEADS
COIL
0 AND HOUSING '
ITf T2 1 ASSEMBLY I
rs.
LI IONNE'i AND
L2 L ENCLOSING
TUBE ASSEMBLY ad=
FIGURE 6-Solenoid VaIre O" RING ~
FIGURE S--Confactor Ter} Procedure RePlacemen+
4. To test for voltage drop: PLUNGER
ASSEMIL~ -
A, With the compressor or fan motor amnrcted to the ASSEMBLY
contactor, energize the contactor. DIAPHRY
`O
b. Take readings across terminals "Ll" "TJ ° BODY r•
"72"and "L3" • "73° ' 12" • ASSEMBLY
c. A "0" voltage reading indicates no voltage drop. If ~f
any reading is BODY SCREWS
1
should be orrec obtained . Inspect voltage exists ace ADDING REFRIGERANT 0
if necessary,
CONTROL RELAY
in S gelscutrsostate ' th ruffigerant
the a ay be added to the system,
Remove the leads from the trrminals of the control relay. access valve. Add refrigerant until hegas bubblcy disap pear
from the liquid line sight glass. pcar
Using ran ohmrieter, test the continuity of the holding The complete sysrr,n charge weight is given in Table 3.
coil (terminals "1" "3^) and contacts (terminals "2"
The coil should test continuous and the contacts EXPANSION VALVE
should rest open circuit.
Reinstall the coil leads and energize the rcia. Test the Overfeeding of the evaporator coil resuJs in an abnor•
continuity across the ads and If the contacts y. not rest orally high suction pressure and possible liquid slugging of
continuous, replace the relay, the comp rcwt This condition is usually caused by the
6 remote ae t0b of the expansion valve po%cr element not
8good ctmtact with the suction line.
TABLE 3-Refrigerant Charge Weighh
CONDENIJN0 CHAROa
UNIT fL■/I R•22 [VA►. CHAROS [VA►,
UNIT fL•/1 R-22 UNh CHARGE
RA/" /ti •H. •U, [H.' fLBal R42
1i
RAS/0 r2 •H. •U. [H.
•►70
RA/BOA /M• [U70 2+f a~
RA/120 •F100 Ib•
7M• •H/•M►f 0O 1%0
RA/150 •FraS 2•
•H/•H►160 2M•
or Iso 2~,
LINE _ R[FRIG[RANT LINE CHARGE tl•/I R-22
SIZE/
LIQUID 10 FT 20 FT
SO FT a0 YT 50 FT
•t' ID 60 F7
116' SUCTION 1% 21Y _ `
LIQUID
I%' SUCTIONIY 2M 34A
•
969 LIQUID
1 W SUCTION 11 a 4Y a>r
'Charge Per Clrcult
Underfeeding of the evaporator coil, caused by an in- required for vaporization. The recommended superheat is
operative power element, results in an abnormally law IS F for
suction pressure. systems operating at or near full load. Check the
superheat setting as follows:
The operation of the power element is tested in the fol- 1. Firmly attach the bulb of an accurate thermometer to
lowing mann,r: pa the Stop the system ar►d allow the suction line to warm up to sioo valve.. Insulatee thhe the re rmometer Abu b with the
Fiber-
room tempersrurc, glass" or of the bulb. insulation. Extend insulation G"
2. 'Remrn•e the remote bulb from the suction line and place both sides of the bulb, ,
it in a container of ice water. 2. Install a pressure gage in the suction line access valve
3. Start the system. and open the valve.
4 Rei ove the bulb from the container and warm it in the 3 stabilize. system and allow the thermometer reading to
han I. At the same time, feel the suction line.
If a temj~rature drop is noticed, the power eltmcnt is 4' Using fisess,ir saturation table bRodegrces p?2, concert the
operating. ]f there is little change in the slctian line rem. suction rssve a e reading g
perature, th a rower element is faulty and must be replaced. suctionNOTE: p Addresslv are S->:e rge trea add n to ; psi to the
ing to compen-
WAI4,!1NG: Do not allow liquid to enter sore for the preswr: drop in the suction line.
the suaron line for any longer than is netts- The degree difference between the ther•
sary to c •.rk the operation of the valve. Ex• momerer reading and the pressure to rem-
cessive fl (A-back will damage the compres- perarure conversion of the suction pressure
sot. is the amount of superheat
SUPERHEAT ADJUSTMENT 5. If the superheat is above or below 15 F remove the nut
which covers the body of the expansion superheat valve, n adjusting d ,make the neces-
cvapor minate
the ch pc ssbili fr f liquidis aheareder above from
that nary adjustment. Check superheat of both refrigerant
circuits on dual circuit units.
r
HIGH PRESSURE r
CONTROL LOW PRESSURE
CAPILLARY TUBE CONTROL
CAPILLARY ME
' ? SUCTION LINE
ACCESS VALVE
• -SUCTION LINE
LIQUID LINE ,r LINE
SHUTOFF VALVE
LIQUID LINE
SHUTOFF VALVE
FIGURE 7- 4odol RASO Uall
7
FAN 1FMPLRAIURE
CONTROL
-'DISCHARGE iml
SrIUTCFF VALVE
LOW P", SSURE
CON HIGH PRFSSURF
iRUI CONTROL
nPiIIARY TUBE
CAPILLARY DUPE
C _
LIQUID LINE '
SHUTOFF VALVE i
SUCTION LINE
ACCESS VALVE
FIGURE, {-Model RASlO Unif
PUMPDOWN (See Figures 7, 8 and 9{
1 mechanical failure causing the compressor to "freeze;'
I. Close the liquid line shutoff valve. electrical difficulties such as low voltage, weak or burned Out 2. Install a pressure gage on the gage porn of the
suction loadin oft the corn I 1h inoperative moron, ace, All poverlossible,oadscauses
over-
line access valve. g
must be investigate Pd to prevent further failure 'C the
3, Install a jumper wire across the terminals of the low system.
pressure con(rol, When the motor of a hermetic compressor fails, high
4. Start the system, tempt ,arures develop within the compressor causing a •
breakdown of the oil and refrigerant. The resulting prod-
5. When the suction pressure is reduced to 2 to 3 psig, stop uas -acrd, moisture and slud e - are extrcey corrosive
the system and close the discharge line shutoff vatic, and must be thoroughly rcm,)%8d from the systemm. Repeat-
6. d burnouts
G. Remove the jumper wire from the low pressure control, n buurnouts will occur if all of the contaminants are not re-
.
7. Check the service valves and piping for refrigerant leaks.
CAUTION: Uo not allow the sludge or oil
NOTE: On dual circuit units, pumpdown to contact the skin. Severe burns may result,
cachcircuit separatelyasostlincdAbove. Trane rec:)mmends the suction line filter-drier cleanup
MOTOR fiURNOUT method for ncC removal ri corrraminants resulting from
If a compressor motor burnout should occur, the cause
tom «ssur nxltor butKxrr. Service Iiullean S-15 outlines
for the burnout mtrst be located, analyzed and corrected the rec -)EIed procedure and materials required to
before a replacement is installed. Failure can be caused by perform the work.
DISCHARGE
LINE SHUTOFF
VALVES
FAN TEMPERATURE
CONTROL CAPILLARY
AND THERMOSTATS
R
U
FIGURE 9-Model RASIOp Unit
SUCTION LINE
n ACCESS VALVES
LIQUID LIeNE D • VALVES
Since the Trans Company has a policy of conllmtous product l+nprovement, Itreserves the 00t to than e
PRINTED BY P, D.-V i specifications Ind desIgn without notice.
f3 H-RAS1-6-11 61-F.J.H.
fl
THE ARCHITECTURAL COLLECTIVE
April 13, 1971
City Council
City of Denton
Denton, Texas
Gentlemen:
Denton Fire Station No. 3, known as Bid No. 70.6895,
located at McCormick and Underwood is complete,
anolose*d are 04ner's copies of Shop Drawings, Trans
Operation Manual, Plumbing Fixture Guarantees, City
Inspection Approval, Door Guarantee, and the General
Contractor's Certificate of Completion, Master keys
have been delivered to the Fire Departmento
The Contract called for the completion of the Project
on or bofo=e March 1, 1971. Occupancy of the facility
was granted on March 19, 1971. The justifiable reason
for this delay is weather conditions during the constr-
uction period. Weather reports on file in the Architects
office show 37 days of inclement or rainy weather.
We recommend that the City Council accept the facility.
Res ectfully submitted,
aa~Y
Gerald Stone
GERALD E. STONE, AIA RUSSELL BATES, ASSOCIATE; ARCHITECT
314 RAYZOR BUILDING DENTON, TEXAS 76201
• PHONE 817-387-4881
Aeea4loa Fwal l0mr Tr" Tot BJa zk Wow Heafas haw the lime operttlodat features good warranty
as tba Round MoM. The exterior is inIsbed In wblteenamet baked om The top is add•r;ytstant porcelain
enamel with a four inch high Iatctral back splash without dJrt eolloWat groavel or cracks, The labk top
.'t 36' high tied when !nmalled Mush so Male to kitchen cc laundry room, a{on&q& other attractive t5ble
top appliances or cablaots, h fumishes additional durable work space.
Niel The Ruud$las Pacemaker Table Top Is truly compact, smut tookbg Lad dedSw4 for maximum t-Wits,
alltOMatIO storage 5 YEAR WARRANTY The water heater dewrQwd Aere Is taarrrnted row I rears a&dwj 4ark refute. to tw,rery,
M mill complete npraeemrN Born Aeater it Lke raa4 duY
am
~a i after terms of M the ew in a y an
eleotrto water heater fatwitobt~rou to oots o errn,owl, reLutallatim and defwery are aw /~y~al ,on,pteu terms o/ ror ro nty
CONSTRUCTION FEATURES
1, lilargtas iLSLIttimm completely wrrtwlds t1nJ1, keeps water hot and
conserves electricity.
f 2. Qlasslimed Tank resists corrosion, aswring WE life, safety tested to
r
w4hslaod three hwrdted pounds pressure. r
3. Cold Water Iallt brings cold water to tvA bottom to prevent mhcing Wirth
u 11roady heated water.
4. Ands led protects inner trek W reduces corrosive effects of Certain i
f hot crater chemicals.
5. Aftto ek Tulperaten Clatrar Therwital keeps stored water at des
iY4 Y. 1 1
sired temperaturt. f
6. Direct ltnersJlt IIIatllt Elatoo is are completely Immerseel-eat Witt ; s
Net tog into the rater. Opuates sll rrfth nr,3Smwg 0
>p
i Cold VWA( Meet, SH Mater W Re~Iy MM V&% tend 1114ftw
am r0 at top of trek for samy access and fast eeoneatJal whostloll. _ W
7. Na Tobrlr►b" Pntgcw "tomotldlty gib faf/fy tells off per VAW
In Ow Will* want N dubW prokt tompOraten N Oscetldld,
¢ >L hrutttEtialreOGd bp-b Intl end heat rt11 W"t tht1r11$W*o made {
of onepltcl with four Inch back Liptak. Ko dirt Catchl
4. ROOM But Aoki tdunnet Gs bade panne for *81of Ind ilodrted Cdff• ~
wtions permlt better to it onto atainst Wall, Comfortable to{oom
r/cess in !rat.
TABLE TAP MODEL Avg I*W In 30, 40, and 50 Ilan c4WIVA Orarm 01MEErrsa100111 TTAKKE Wear.
Y MW.
Vi Wit. a sit 1 t 2 1 Hit IQ•t S U4 D tatp .1111: 20}~E V Rl Ea~~ pp pp
E4~aMa I at
•I 41Y•! Ier•} lMT•3
1 2 1 2 1 2
yal a e M OWN" Wwta 20' 2N 2210 2221 2/• 24•
t 115-230 115-230 115-230 115-270 US. 30 115-230 E
'.taL 11 A Upprt 1000 1 1 M i4ltbt to rider Conn. 1211,4 32,%w 330 334
>tyj• .
s rIL Y• t.t. entree 1500 No 2000 MA 2500 1000 I Nritht to Junctlat ba 3311', 3711• $4' 31' 3mo 33%0
9; AIX. ft upper 1000 5000 5000 M Water canna. le,
30 t~ lower 4/'. ~N,,. 41•
r~ 1000 1000 1000 6000 5000 B Arroror. 00ppy wit' 115 lea. 173 ter. I" 1b4. Los lba. 25-3 Its 243 let
• f 30 A r0 GAL,
RUUD UNIACKETED TINDER -COUNTER MODEL
1 Erse Iiatrk water healer Is a tpece 11d ma'Jay vrtr. Tuck :1 under l cwHU,
to a cobfeat, In the attic. Tana, conlroicc, 11WItlon, owfiUm and warranty
are the same as Rwdllas Facwskar TabI4 toopp alodela. W thout ia~kat tap of H r i
base It Ism money uvu for mullipla unit dwelliv wher4 individual bk water -4
t wpplki ire required. Mot rocomrnended for elpow locations. l
CONSTRUCTION FEATURES ulna rs Table Top Thant jacket, f0 '
~ r
• tap K base. l j
F 1 i
~ YAra1 CIII~tat ~ gP 2/ gP Ip 1 r 1
' c !i. E4~nU s. 1 1011-2 41111-1 40114 10111-11 op let
!f Voltage VsM 115-230 115230 115270 115230 IMM
> W g Upeer
WIT.
" ; r u ~ gy 221 Y A C. lhnr 1300 600 2000 150 25M 1000 a 4 21131e 120!
0000 1np 1ST NSOG&[3v~, a t
IAho~1.. Upper 1000 fOM W90 4 2t1!{r US!
i later 11000 1000 fD00 0000 1.100 1Q10 f, 1 3001 17S;
RUUD MANUFACTURING COMPANY
RU 1/ 0 "In keeping w1th Its policy of continuous progress and product Improvement, ,gaud
Manufacturing Company reserves the right to make changes to ithout notice," 1
F01M 40. WE•7
PRIMFO IN U.SJ. K-F!•SK
ftWCW g. nt all Rleetrk F021A rloan tbul ,
luatht foci DtQe rum dace a>o nf}plgvire y' Wareale•t1y and offer dEttl AUt 7
Into wufr, Crean ,t EAkkat since Dlrect I perm'"ulat placement near point tstt
of
double assurance of i au tank Of1 fife ~2 sarlokf or fumes. Qlass~11ned~taak V)dau 4leesll all hill dice greatest
lfoor apace r . Extreme utty and malnsium rtectly
required abd fends maxfaturl Y compact cad attractive, the Ruvdilal pier mrod w~ t
s Yfi~R WARitAN7Y rA,
Ise rent welu a ranO4d rr YWee Al dnc'avd Ae" 4 100"ered for 6
/ner,ryy darrlirtl. Cwfr e/ rr mood, e rwR1oIukalefiAerly 4 IAr Ae,a de..
ow W Wi; Jn O"l
; N s kill leirAls i
0.+R'sble rl rarer odkr os and GAeer rwvr ~
r w nd ieetuddd. TAe cvmprrrr urea ose 6, .4 a osi
rain v arv automatio storage
electric water heater
CONSTRUCTION FEATURES _ yfCAeOr t ION m -
t. cobservs fa lectrla comDpieteil :urro0i;ds tlassrined troll', Illy kee fIt
ps water trot W
?Jew eslAneAlves frt pryeed W tall wrap around Jacket for improved
performlrlce In r OPa
hertearancl.
1. held d Water wri*&ter. Inlet brings cold water to tank bottom lit for p to prevent Fmlxitriast lwith already
~►3~;p J
® 3• Aeffr Rod protects Inner tank wj reduces corrosive
emlcafs• Additional opening In to
ch effects of water j
i j
4• Aatlaatk Temperate" Cal rkfn•fsLft keel access to a urtNn node rod. hot { v
gesture. cps stored poster at desires' tear
x S. Cold Wittr'"Alit, lilt 'olifatfr ballet, Relief Vshf, Aalltf RIi W Eletfrful C14
af
New epaas We at top noff tank for is$ access and fat, ecanom i
ltttoa
1 j ronoPAR " ictlotlvkf eliminttas most Moto ear kN instal
1. Dkett liaanrsrsta and stabi82q
¢ {r J toes (at* Gorr ~ I~filialll11 rtrick f~pfetell f>~ -alt the but ~ ~
f La AeW for ~•d by xirfnt LitI to A :die! iLit if
likes.
r a> a to poll to prlwiq to rt a n ro,r aw +fu
i = ever JeperaGlrl
desired ternDfraturIri• is fxcs ageaa++tanttlcalll and ll tact ON
4j dM :Ne power in ereM
hrRrwa/ Elletriear f+•etln 10-4 (for x1d ddmtents for east rrutarlNlon, No spo iI Ind r;tl Piacfd abort haunt
) I/. Cl II Is spar"Ag Rutldilas Blur,
y } o
! 1. gnyy
a M .ad•cl
d fffQHBO1 MODELS He+vaflablf for fnowlefon %two Boor spate Is branot W Ts.
a Its
i ti < _ r utR ttifr 'ks. er b f► e b rorta'°AC act tativo+l,X
,r apt sw I•t Ills era as l~I U sr y ealrA °R wecw . no
1 # , [fe•eata 1 2 1 2 r or, 12.1 11.2 1t►i IM2 woflajgwgjp• Rby~MfdiRerant
r f KR of I r y 441 1 1 a 1 2 J rj be y r°'y nqulr area
r 11ty St4} Site lam+kaly ftsp a4 I
Kit M Li CaR N7 4 5944 II44 6144 M•rfr
r ' 1 Ili} fay} Say
/ ` a It"
"IA to JIM 6001 far N AY N, } k?} 584 M wfrad f a i41•A1 A•Mva o
1 k4} 5144 U46 } II44 1141 a e• ImAr t1 •pe~retbir:
:y+ • 1xLet bra. 7711 1 SN} Say} 514} 591} 1944 1111 i!)1 pyIR~H r4~~r~L~
" " 1`sS llf.M A J 17M J911 1.41 2244 2214 2144 N
t
~flJt rr W1 r1}4 ►yaja11f
44
a~.r.a,,, r,•~ " 0 j itaedart /D• 12% 1500 2000 2tN
ti44 Lj yF yK~ Alfa C4 Rim"
sslr.s tower IS00 too 2000 2500
7000 eWlr
katu urrkr tsoo 7000 12so 4000 ISM aoM
I'c rn0
jt~ 60DO Ism 6W
looser 6tJp 6000 logy 6000 1000 w •
Adorol.tAirpntw~ a h 1n J-e
156 ° °I°~00 Woo root low sm allot soon f 221
to to ?q
1rr Water ceo„tn;w„ an u,• ~n r.►.r.--aatstal khoeen water "ossal
I' f
LOWBOY MODELS are ararl*f for Installation wfte 8 bciws
~1' ra a r ~s. n aI rf head "a is llmifeE
el•Rll Rea 2Of t 2/L! 2011 X 2 4eu91
401.
2 ter i0t2 ~Hootor 1
a Kit. of 2 1 2 1 2 1 --a elR.
7114
7144 294 2
I • 1`161L to water Comm, 20;j 31 y4 71Y} 31%
39N
" t K 1 214! 2'"45 214} 2944 $J44 al
I, b Jwacuoa fox 7115 1144 J9 f1 7914
• lacbta'a. 2144 290 71% 7144 29)1
t1 17% 2241 2244 2145 21 7941 0
1bMrf ul 1000 1000 Y. 2141 2144 •
2>t r. a C. Lower 1000 - 1230 - 1500 C
aau 11.1 ucrkr Gco tsoo $00 taco 2500 1
750 um
„d 6000 sac
It lower loco r,im Gott Dow coot ROD
ib Apse" YM s0~ WV
yr.. s war.
MOOD 1r ss 120 170 win
wets c mklI ^s an 4i A.n,r.r.r.--orltaRe• ae us us 175 us
RfIUDCtAf rAlfl{ Ruud water healer finks are tw.ea water aa.enbrs, f lncaea~..
Caro. the tank sf Aact is coated with trade of spetlel nlatIII /with esacllnt Re
fused 1o thf with :feel shell at IfiO0 in escfushI parcelaln lcrntufa called Ruudslts rid IMECi `fkfAlER!!pK NFAJIMO N
effecthe~ rtslsts dtf tortothl r resort I a ~ t 1 a'= hest; ~11ET~ e
w fen fife. JtnA is defined ar10 tested to xaier chu►+kals, ther~eD~ r flag tin r>j that nl coif Imbedded in Ifia ska0 oxidih%d
. (~tteeny
tkstand app t lortt water In linnedappar tubeAlth.%% jet 8 pressure of 12J,5 pSl ASA Standard. hldrostatk test ltressnrf for wat a of, the ends
are Stated toFKt 00ff x~A
trial art usflychanied slaufd t b il'il k9lK KJOhlurr.
effic~enocl ciot 1264 Rsnied Operate tif~ xltuh atby pr ft:
C&+ 'N PICATE Or COMyLE`TI01~
THE STATE, OF TEXAS
Counts of Denton
I, Vert R. Moors
do h , ;pA Bert Moo.'e Constru
ereby certify that ttje &mprovcments dction C
certain Contract dated August 2!i e3crlbed lnoaP+~nv,
Penton and Pert R. Moore ' 2970 between the City of
cordance with the p , have been cornpZ~~tod in 3*i'~41 ac.
RePresent that allZans and specifications and t and
artisan's and subcontractor s' materialmen'a ' woar and
'"ands in connection with said construction cZA1mgrer~s
been duly and fu11 end do_ ppoje
y dischorged, Paid and
,3 ct have
sateit.idflecj.
WITNF..';g ;~,Y F,A2;D ,
c9 this ~
day of
WITRE,3g , A.D. 1971
CER''LFICATIs' OF A, 4.
I ACCEF'TAF;CE
AlRxandor 14, F ,
of Dolton, Texas, dosribod ln69 who is the i~ ,
between the the abovio mentionedoContractty
August 24, 1970, do 1v ' Texas
and PerC R
therein described ha ve been com Poore, dated
? y that the imi~rovenlc;;ts
Plans and spociflcr~t b P-etod in accordance With the
~'ITh'F.iS
I Q71 ,,,Y PfA?:D, this thg
~ day of A D'
!I
E~
i
U.S. Plywood lNeldwood and
Standard Door Guarantee
L"ub(ect to the t9rms of fheStandard Door Guarantee of the such darn and fi
when the finish has been regularly mainfalr►ed
Notions' vlfoodworic Manufeclurers Association (NWMA) printed .u accords xa with the wrltfen racommenQarhns of ~.'WMA
on thl reverse side hereof ii Incorporated herein by refer and with established buildlr,q practices, ,hIs guarantee does
once, U.S. Plywood guarantees the following solid core dcore not apply to the finish of any door, except that U.S. Plywood
10 be free from manufacturing defects for the time ppeeriods guarantees VIGiLAR exterior dry film finish and PERMAGARD
indicated below. Except with respect to doors with DURAPLYa and PERMACOLOR In!ertor dry film finishes to be free from
or PERfAAPLYe overlay faces, or with PERMAGARD", PERMA. cracking, blistering flakingoworeverFOSS of adhesion for the time
COLOR' or VIGI_ARs' dry film Frilshes, this guarantee k' appy- periods Indlcsied below. H, such guarantee does not
cable onf~ when the doors covered by It have been finished apply to any fa1..+re of ouch finishes caused by acts of G,)d, fire,
In accordance with established building practices for finishing physical defacing, or negligent or wilful acts.
DURATION OF OUARANTFE
DOOR TYPE
INTEP,iOR USE EXTERIOR USE
U.S. Plypi Stk ~dard Door
S Yeah 2 Years
WELDW000 Stave wmt7er Cora, !lovoplye
orrs or StayyStretee Door Life of 0
with PERMAGARU or PERMACOLOR Film Life of Orl~ginol installation S Years
with ViGILAR Film Life of Originaf Installation
with DURAPLY or PERMAPLY Face Life of Original fnstaflalk,n Life of Original Installation
WELDWOOD Fire, Acoustical, Leaa Lined, Life of Orginel Imta latlon
Static Shield of Stile and Rail Door Life of Original Installation
with PERMAGARD or PERMACOLOR Film Llfs of Original Installation
with VIGILAR Film Life of Original fr1Va!fatlon
with DURAPLY or PERMAPLY Face Life of Original Instalation
If any door or finish guaranteed heroin is found by an author- which is considered good practice In the building Industry
Ized U.S. Plywood represenlatlve to be defective within the regarding storage and maintenance, and hdvo been subjected
meaning of this guarantee, U.S. Plywood will, at Its option, onfy to normal use.
either (a) refund U.S. Plywood's original price for the door (b) The provisions of the Standaia Door Guarantee of NWMA In-
woodce suchrddoorss wit or (c) repair a I enticaalch ELDWOition, nOsd or U.Swpr~ corporated herein by reference shall not be deemed to include
Standa U.S, Plywood electa (a) or O and the defective door was the provisions ti thereof s relating u the duration of the qusmanu-
furnished premachtned, pretlnlahed arld pre-fit, U.S. Plywood afacturing nd the obll facts, s of the manufacturer In the event of manu
xitl pay the reasonable cost of ehangIng a replacement door applicable defects which pprguarans are su
and remove the defective doer from Ihn premises. ppllcable provisions of this guarantee. ry poraeded by the
This guarantee Is applIcahle only when the prod acts covered relatirgg to tt a described s rtoduetsole , ANDIIIS IN LIEU OF ALL
by It have been Installed In accordance wi!h the written recom-
mended Installation Instructions of U.S. Plywood and :;ith es- AOTHER CP IhIUGNG THEE WARRANTIES OFtMER H WNyAt31!
lablished building practices, :lave been accorded treatment ITY AND FITNESS FOR PARTICULAR USE.
VFWRASE R_$) pj~,,~.. , are
^"'a7-~+++~- -NAYS OFiNSTA'.LATIOiL_pJra-fitatinn - 'PtAlro_n/
ADDREa9____M1_M P}t ArenII
CITI Da11a,8 ~aTATF,_Amt
NO.OFDOORS i9 TYPE BYNO._--____L - _---.INVOICE No _557jJj.-__ ^JATE_1J?.0uJL_-
NO. OF DOORS-_ _-TYP: BY N0,
S. _----INVOrCENO .-3-Li8,l
NO. i CV -4,S - - - -TYPE BY N0.- - - ---INVOICE NO.-
---DATE---------- f
NO OF DOORS .__--TYPE Bt NO
I N Vv IC E NO
C U. S. Plywood
U,i. pl;wOm Is a division of
U S. Pil,wood-C iaon Pape~1 tar,
777 Third Arwood, N,Y„ N.Y. 10011 _
Bill,
t Above listed doors, hille'd to Bert Moore Construction °TnA
2! Pisa l
+ to Fire Station #3, Denton, Texas: war. delivered
1/25/71 19 doors BMCO #8e97
2/23/71 2 "B'r Label Doors BMCq~ #89bg~.1
BMCO PLANING MILL, by e, ~Z
t~~ ~ f
5 STANDARD DG
0 q4- DOOR GUARANTEE A
All doors manufaciur d by members of the National Woodwork Manufacturer! Association, inc, (riicept those doors expressly exc;crded
from Ihli guarantee by th'i rnanld„furer) are guaranteed by the manufacturer for one year from dole of ehlpment by the manufacturer
to W o good m[,terfar and wurb.manship and to be free from drrc,cls at the t;rne of shipment that would render them unae,-riceablo or
unfit for the ow.n,ary purposols for which each door is rece nmcnded.
Tho nianufaclurer will, at ,IS option, either
l
of fitting and for finishing it was origins,lysupplliied byythe manull,7 lurer, cr f3j refurnd Ithe arieedfecerr',ho by in
acluerf steno
door, if the don,, is found not to comply vilh this y•roranlnc, Iloaoaer, w'rlllen not,ou of any cl 11'r, under ti,is guarantee must be g;ven III rnonufa; p d
by the manufacturer for any
urerpromplly whon discovered, and in any event wail,., the aL„wc ut.tted orie-yea: p~rl~d in 1i case of a dehact reasonably
discoverable by insFwcct,r,n of each doorup)n recerj,t of shi meat fr~,r,1 Ih,~ ereal to
e door as clue P mar,uactarur,'nHirtd rnu;l b!r
anotnd r bolero
prior wrdten conserl. Achong on any lod in arij trap nrr. The rri raph ~wi, f shatlla ueferc!- iab'e red at thorn ,n~ sgrcp yr d o thirty days thereafter
eed th1n munMa from date of claim, It a door hoe h o Pu•rm or arcpli~ed clurei. for thou! its
the original installation dulling the period cl defolmcrt, to pc~~mllscclndil'crning to humidity and tennr~n l- the ma,nufWre fora {E lied
l ado, the coon must remain hung In
ALLOWABLE TOLERANCES rcravre.
1. Stile, rill and Coro show-through iph tographing) on hardwood venecrcd riush doors shall not be considered as a defect
unless the faces of the door vary from a true plane in excess of 1/100 inch in any ihree'inch span,
2. Warp shall no; to considered a de'CSt unless it exceeds Si inch in the plane of the uoor itself. Warp is any oistortion
in the door itself, and does rot refer to the relation of the door to the framo er jamb in which it is hung. The term ware
shall include bow, cup and !vi in me rs~-ring the amount of warp present n a door tho followin j method sh3tl be used:
Bawl cup and !Mist shall be morseled by placin4 a straightedge, taut wire or siring on the suspected corica io face of the any
hori
tally
i~a bow cup and twist(shall bermrade atvthe pole' orf maximum distanced botrweentsthiosbottompfit Ithe The measurement of
or string and the facA of `9 door, t o eclat filed
9 ya, taut wire
MAfTERIS EXCL. QED FROM THIS GUARANTEE
1, Unraatisfactoy service or appear, -•auscd by failure to follow the ' fiandlin
set forth herein is not covered by 9, lob Finishing and fnstaltatio,a instructions',
2. The a aral,tce, ons"
CPcar3nce of field finished d,,:), Juaranb;rd in any event.
3. Natural var,ahons in the cofjr or texture
4, 7h,n_ guarantee against warp does not apply to th,d .era wince he considered a, dufecrs
9
a. 11i' or Ihfekordoors that are wider than 36' or hlgh^f ihan 60 provided, hor,cver, th,nt if live height of the door cbcs
not exeed 70"'the width may be up id 4"G".
b. 1;S"and iii" thick doors that are wider than 30" or higher than 70
c. Doors with face veneers of different species.
d Dcors that are Improperly hung or do not swing freely.
5. This guarantee does not cover doors with:
Ii Cutouts for fights andror louvers, ary edge of which is neater than 5 Inches to any edge of the door
b. Cutouts having less than 5 inches between adjacent cutouts for unit locks, closures, or olher hardware Cutouts.
c. Cutout areas exceeding 40% of the area of the fnce of tho door,
c1. Cutout; exceed ng one-half the height of the doer.
HANDLING, JOB FINISIIING AND INSTALLATION INSTRUCTIONS
1, Stors flit an a level surface In a dry, well vastilat:d building Cover to keep clean, but allow air circulation.
2. Handle with clean gloves, and do not drag doors across one another or across other surfaces,
3. Deflii at building silo after plaster or cement is dry, if doors :,re stored at job-site for mono than one week, at least top
and bottom edges should be sealed.
4. Doers should not be subjected to abnormal heat, dryness or humidity, or sudden changes therein. They sheufd be condi-
tioned to average prevall ng huri 'dily of the focahl
before S. The utiiily or structural strength of tho door ,oust riot eimpanr(A in the filling of the
or cutting and ellering the dcor for lights, louvers ponets or any other special details,
8. Use three bin n g door, ;he application of 5ardvrare,
gs per door on door,, 7'0' In height cr less, and four hinges per door on doors c~er 7'0' in heighl.:'rnges
should be set fiush with edge surface. Be sure that hinge, are set in a straight lino to prevent distorf;on Allow a
ma!et) ' V,' cl3afanco for swelling o! door or frame during fulure damp weather pofinds.
7, inamediatefy prier fitPr;g, r.ut5ng for C rs, weaUle,s.rlp ;'7 )r Ihresho'd and before fling PGrmf-
da~r Cm ;h lose
0 jC'b, tho entire door inclutfing 111r; III ; nd uror,rn r, rroi'-f r[ " ~ g any mete-ri0r or C'r !nrilo
preverif undue abstrphnn of rnnI nu two csgrl; rf osier va n
sure, e sh or
8 ExIP ,or IiniehES Shtli h„) I d on lrIc r~)
r ric' f,cn and 11 r1i 1r; r:f r.°=Irrior r.
pro~cclion frorn rh r edernunls, r1-,ors must b r , 1;rs 4v In inr.ti'IrrJ f, r J . Leto r rlnishin?, door acts rnu51 be Cl p
,!only pr,,toctr,l h,y ll,t_hin'I cr c her ue 3 n
'''!P.ard swing 'with no
4 s
rn9 r4 Cf ef(CCtS 0~ exr e3n end dry. 9'x,1 (-j 1u r11 cnr,n_rit rhg{hyr
wIr r1
n ore by c,v~dir 1 lvi'itiy r., h 3l0 we lie ,,~,r,
to o. ~ri'J crn9 , ail,i a t S,1,rr,n c,rdh, ,,it 57~ c.Znr}P:l l~nr
Sn-r d (.fr. r r
nor' spr rpg., r,l r ,,,-J rg,•i L,n n r I r Inv ,i r ,-rrlig L^io C apr,ly,ng -'r
r.,. 11r rn r, h...u' } r L 1'nrr} .:f h I r r:
r 1 r.d 1 r ..11 I i I fj,,.r r.. ,gin _ .,;rI, y ,:,Ili r.
Isis o gully, f 'fe .c S. 4 ,e L'os' b c,
! I,-a-,r Irr.,f f :1 t r L~.n h•'-'~,p 1 vii I I :,utlly,
p
r .ar:r rill, , 1 pr i f r !,;r riv. -+_n1
r , rr 1
Cnre,I aslr„D t,r u,u ~f a ',Inr Inrr md r ii 1,ir ff .:r it i, frrt'l
fa pile, 5 rr,t,rrsr ,irA
-yli,t,5 fir , 1 {
1 T
7hnrnarnno I 11~ I I ul t., luty rl ttir~„1 is ts
w~ fh~rs e rn "ritrJlryonlrhgfore)oln7nIfh, n,rn r g 1'rler r rdrr,n;
here n if gra4 r
/Or tt r for ci Vt' r rr ph , r f!'f o , rl' rn r, i,~ i.r :glr rt
O ( lfYn'rrf
r~. 'rs g•.I rr~.~
Th,g P ~E ~i rnVY~l',Cd rr.'Of,r of fl ^ G(7r , )3 for f.rC !P (,f 5 rr r ccl,~•ror rr any !n earr;s cr fl n /I"
S!art I,.nj 07'r lie i n' r ',;J , r!( f` li 1h r. r /
t on of Ii n d'srriS,,rr r;-mJ uirrl r "t I; ff lhn fNirYd,l Iyr, r"! rf,s II1r,~Cr',
u',^r of 'a~_,r1 7cOfS, Fcr a 1i:1 6f ft,''v!A n ine Gr°r firms c nt.r,;r tl rry
NATIONAL WOODWORK MANUFACTURERS ASSOCIATION
400 WEST MADISON STREET • CHICHI ILLINOIS 60606
UOp Yrl9n( 13r,r. Ih,.
6'33! 1 p,~r!e ] in U / ^}.wr 7Y'0
400
WM SERIES WALL MOUN M WATER COOLERS
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7V p'ILV is , I 1 r:l 1 nl .Il I + 'fl Ilr 11 II ;li'I a f,l!;. h:
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BL-301 61-LEVEL ACCESSORY FOUNTAIN
LvAv' tf, }hl ra n 1~ ~'.hf rlf { / i - ~r~
tiafr, 1lrictll91
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nll,lptilin of cilbi:wt, ~lt lintl - ,lrl'1 lm •;,1 tl'fi Illnll;hl • ti
W'M Timid. Avail.t} le with grnp l,ai~l~l rvain('1, siain',('~ZN I +
ryr rl:v'r of `t 1:1'f'?rli \'1ll" l (.1)\"1'riA nt+;; t(1 rll;it(tl
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City of Denton n Manicipal Baildiml, D0dwi,P,-(vs 711201
r~
March 19, 1971
To Whorn It May Concern:
This is to advise that all plmbing and mechanical work
on the fire Station for the City of Denton at 1104 McCormick
Street has been inspected and finaled and meets all mechanical
and plumbing codes of the City of Denton.
Sincerely,
DuARinwr Of' cam my DImiwiN4N1'
~-,e.wy
Olan C. Gray
Building inspector
OCG/er
604 SOUTH MILL
Ll'.W 16VIlLE, TEIA5 75067
1214Y ~6-37 ~711
HIGHWAY 24. WEM' 539-3711
P. O. BOX 764
DENTON. TEXAS 74201
c6171 167-7665 JOE EVANS
PLUMBING, HEATING St AIR CONDITIONING, Inc'.
CONTRACTING -o- REPAIRING
MARCH 181 1971
Cz'&,Y OF De,'TON FIRE DFPART101T
C/o BERT 10ORE OONSTRUCTZOr1 001,70y
WE GUARANTEE THE PLUMBM FIiCPUo'ES' BE BE FRM
4~OMMAIISHIP OF THE FIRE STATION NCO. 3 TO THE
OF DaZ(;T FOR A PERIOD OF O1;E ~PFBR OD S TTOOTBc
OF MARCH 17, 1971, TES WARRAIYt~
III FIZZ AS o,1 G AS THIS F1~UIP~NT IS NOT kCCSUSEO GEC
1}AISAGED BY IJSF,.
DO COWARD
JOB LVANS PLBG
gn & A-C, Inc.
P.M
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THE l''1LEt lrTEUTUU FU Ito.
COMPANY, TRANE HEATING PRODUCTS
FURNACES Climate Changer
Electric EgAmMial
LACROSSF- [ Oper4tlon•L{ointenonce
MAIPIe
S;nt• the !rose Cew,ponr hot a Pdicy of contGeevs Preded OPERe-
Improvement, it retenea Me right to change spedr•Ketionr and JULY, 1969
deign w;thavl nalice,
FURNACEee ELECTRIC
UPFLOW,DOWNFLOW
• OR HORIZONTAL
ob MODELS
EUADA 03 EUADH 07
;.Y,.
CUADH 03 EUADA 09
EUADA 06
Tum5mw
EUADH 05
EUADA 10
EUADA 07 EUADA i2
OPERATION
E; .:ric furnace cycle of operation is eor..rolled by SEASONALCIIAN[;F,(),,ER
® the rout mounted heating/cooling rtr heating only
thermostat. Figure 1 illustrates a tyfica7 thermostat. With a eombinati rn heating ari cooling system, or,iy
When either heating or cooling is dxired, place the cha^aeover of the room thermostat and periodic
di
system switch at ",Heat" or "Cool" and act the fan maintenatxe is required to operate tau unit. Turn the
1r ch to "Auto". Adjust the temperature control dial system switch from
one desired temperature, With the thermostat net at s Heat" which om "licit" to "Cool" or "Coo;" to twir .h:se points, ;:be system Will cycle automatically
in maintenance and to 4 Point is non points Required periodic
response to heating or cooling needs of the conditioned mutual. ar gi~cn to this
spt.ce.
To ;top operation, turn the system switch to "Off". UNIT S1IUTDOWN
T;le fin ;witch may be left in the "Auto" position. If the fume installed with s air conditioning,
Noter In the heatin¢ cycle of operation, the room may become desirable to shut the unit down etely thermostat fan switch should be in the "Auto" Cy
openinpen=ngat the end of the sc;ng season, This is done
position. For coolc rcle operation, the fan by the resin fused d disconnect switch(s) in the
switch may be in either tree "Auto" or "On" supply power lines which serve the furnace.
Position ("On" position provides continuous fan
operation; "Auto" position cycles fan with UNIT START-UP
condensing unit). Make sure the furnace access door am panel ate in
place. Close the fused disconnect switr'r(s) and set the
room thermostat to the desired temperature and
operational cycle. The £uinace sh,)uld function
normally.
SYSTEM rv:N\ FAN PERIODICASAINTENANCF,
SWITCH SWITCH
Perform the fellnwing inspections and service routine
at the beginning of each heating season.
See Figure 2.
Two access &K-rs arc prorvided at Ihr front of the
ifurnace, Thr upper door (upflow installation) to the
,e,--. eon:rol and heating clement section
is h;ncd and
\ latched. Turn the latch cuunicr to b
c .ckwise to open the
upper door, The lower access door to the fan and motor
TEMPERATURE section is he'd by two screws it the top and a channel at
CONTRO TEMPER L the bottom. Remo,e the screws, lift the door up and
away from the furnace.
Figure I • Typical heatintycoolirq tl lrmottet 1, IMPORTANT • Open all furnace fused disconnect
switches: bCfJtt servicing.
f
HFATIHG
UNIT ELEAEAT
UPPER WIRING j ' t~1>huf~
AC.'ESS OIACRAM }e
DOOR A 0 HIGH
1>
Y `
LIMJT C NTiiOLS
A
' TRANSFORMER
rrtt
4.r c
LATCH
cr .
, Y
(.n
FUSES
c ,
i
ALTERS,' l rr
AIR
la\
hat.
r'
l r'
FAN 1 ,
AND s•t`-r }
MOTOR
ti
• + TERMINAL
IL- BLOCKS
~ fq„re2-Electricfurna~,a.-rnnpone,u
i
the filter is excessively dirty cash tirrx it
2. Remove and inspect the furnace air filters. Clcan cr checked.
reolace the filter media as required. To remove the
and th itfi all j motor assembly. To
filter, disengage the filter tension spring at the side of 3. Inspect t and c1con the
the fan housing and slide the filter assembly out of re Remove the td r sing nuts which hold the fan
the furnace casing. housing to the furnace cabinet.
To replace the filter media: b. Slide the fan and motor assembly out of the
a. Remove the rctair.ing clips at the ends of the filter cabinet, being careful not ro pinch the ware leads.
assembly. Note. the fan motor is permanently lubri-
b. Trim the flte; t,tedia to the correct length and lap Sated and will not require attention.
over ends o£ wire mesh. F.epla: a the recalning !!ips 4 Inspect the ht -t'ng element and heating control
to secure the filter n'a.iia. Figure 3 and T.ble 1 wiring to make connections arc tight and witing
.r.
pprovides filter media dimensions. To prevent air insulation. is'tn*a
bypass, filter width must be correct. 5.Cle.n and tighten all terminal block wirin is
Not:: Be sure the filter rrredia is insta!i .with connections.
the dense side t i the leaving airslde or rjward 6. Check all fuses to be sure they arc of the ~.-,rreet type
:he wire frarne. and amperage (see furnace wiring diagram).
It is very important that furnace air filters be Nute: All heatin; elements fuses art, 30 amp,
properly maintained. Inspe•.t and clean the filters one-time "NON". Control circuit fuses are to
monthly and change the media every six months. amp "FRN" dual clement fuses.
Shorten tie inspection and changing schedule if 2
A - -
RE LI;4ING-
CLlP
FILTER
FRfME
• D
FILTER RETAINING
MEDIA d_IP
Fiqun 3 • Air filter wwriibly
TABLE I AIR FILTER REPLACEMENT DIMENSIONS
FURNACE MODEL FILTER DIMENSIONS in,) -
S - - A 9 -
EUA O~LOS10T, 09-- -22 36
ELIA to, 12 2!_ 36-
COWROL INFORMATION
With the room Thermostat (1) set in the "Coo)" and
HEATING/COOLING MODELS EUADA 03, OS "Auto" of "On" positions and calling for cooling, a
circuit is eornpleted between Terminals F, C and V. This
See Figure 4. energizes Fan Control Relay CRZ (13) which has a
With the room Thermostat (1) set in the''fieat" and normally )pen contact (14) and a normally clo,ed
"Auto" Positions anti callinl* for at", a circuit conact (15r,
comp)" p between "Fermin.!!s FI and 1', This su i lies 'Ahen conract(14)closes, poser is supplied co the Fan
cicd pp P Motor (6) at the high spccd tap for cooling purposes.
power to the first Time Delay S a_ d 11h (2) which
controls the first 5 KVVIlcatidg Ficinent. After a 30 oV~e tar
cloning of cs used ed (15) nuts our the low speed
n w itch is us
second delay, TD1 closes its two i.)rmally open contacts speed can, far heaving reouiror to s. (Fan
(3 and 4). As contact (3) closes, a circuit is com IC[Cd to speed can, upon air, be changed :o M rcq,i or low speed
the Fan Control Relay CRI (5) which starts the the Electric d. Electric g upon air conditioning CF M See
Afotor on low speed to deliver air to the ccnditioncd Furr,acc fns;allation Instructions.)
sppace. TTte closing of contact (4) completes a circuit to eThe in t (1) at(1) anndTnT Lion wiring between the room
the first 5 KW Heating Elcmcnt 111 (7) throw the High the C and T supply power to
Limir Control 11LC1 and Fuses F1A and FIB which te anon. r Condensing Unit (16) for complete cooling
protec, the Heating Element. Providing the , uses and operation.
High Liv -t Control are operational, the Heating Element HEATING/COOLING MODELS EUADA 07, 09, :4 12
is cneigized and heated air is delivered to the
conditioned space.
The closing of contact (4) aiso conpletes a circuit to With Figure S.
ti.e se-wid Time Delay Sequencer TD2 (8). After a ;0 14ttthe mom Thermostat (1) set in the et" een and
second delay, the second control closes its contacts (9 "Auto" Pif bons, a circuit is completed between
and 10) and energizes the second 5 KW Ilcitin Element Terminals and V when the thermostat calls for
g "Ilea". This brings power the first Timc Delay
lit {1 ])providing additional hear. The third Time t>daY Sequencer TD1 (2) and the Fan Control Relay FC
Sequencer TD3 is energized from contact (9) and, after
30 seconds, brings on the third Heating Element 113 enerAftergiazes 30 the first second S del KW ay, afTDI
ro closes its contacts and
(12). The seco,td and third !;eating Elements, 112 and nrar g Element Ill (l C the
113 arc also protected by Fuses end High Limit Controls, reaches I If, of the air near tie Fan Control F (3)
The ciec~:ric furnace is billy operational at this point. F, 6- control will close its contacts (3) and
eneergirgiz, energize the Fan Motor at e lows ed top. If the Fan
As determined by the room thermostat, the fan will p~
cycle on and off with the elements to deliver 15 KW of Control contacts do not rtosc within 30 seconds eft
heat to she conditioned space. the first Heating Elenie-., I{) (4) is energized, the
e
electrical power stpplied to the Fan Control through the
240 VAC 100 AMP. DA IMCM C,eCY1r
SLL1r
) orew r s r
z~ ( 6 w[ .wrc
d
31 ! SPO ~tl 14O CONM,
It 1/r. •
cot I 1 MiG%/ i~q is
rH 14
A 0V 6Z s
24. .~---fe
1 10
c~ S6 -1
4
T0.
tM JOIN N1 et .1 eta
'._~"11-+~~ 7 .
10t i
if 11 S9
I'1 I~
.rJA Mica Fie
`"Z sr
Tao
Go
so
To_-7n4.r o(ur wlear @
r -!Lilt COA/IROI J
MLC-N104 LIMIT Coo FOOL 1
rC TCR 4 it
[A-CO COMrwOL RlL;
Tf -7(RM,Nµ i7/Ar
f I
1
16
Faun 4 - Typical line control diagrsm EUADA 03A aml
EUADA 05A
room Therrn,)stat will autorwtically close the Fan
Control cuntacts. This provides positive fan u 200 F. If air temperature exceeds 200 F. the cortml will
pcratinn opcn to interrupt power supply to the element,
even for dossnflow or horizontal applicaCcns where air
temperature at the fan control may tie limi%d. 1 uses -car sir--d F;t t t circuit is dptected raw of e by
the remaining listing El dents, N2, 10 and 1f4, arc heater These arc cn io Lrni the current draw of each
energized in 30 second intervals by their res ctive Time r and sill opcn on a short circuit or an overloaded
Delay Sequencers TD 2, TD 3 and TD As shown in circuit condition.
Figure 5, each Heating Element is proo:cted by a High Thrrmai Overload Protcctur Fan Motor is protected
Limit Control and Fuacs. against lacked rotor or overheated conditions by thermal
'
With the room Thermostat set in the "Cool" and overload!.
"Auto" or "On"position, cooling operation L J the EiJA Enc Limitinst Tn~ nsf_ o_ rmer _ The Transformer is
07, 09, 10 and 12 E'J ctric Furnaces is the same .s alows designed to limit the amount tr outran current which
described for Model EUA 03 and 05 units. The Outdoor allows t to use of open type conrd. wiring.
Condensing Unit (6) is controlled through Tttminals T ROOM THERMOSTAT HEAT ANTICIPATOR
and C by the room Thermostat (1).
BEATING ONLY 1J,ODl'.LS EUADN 03, 05, 07, 09, l0, Most room Tl•,ermostats contain a heat anticipator to
and 12 help the Tosut control closer to the desired
t=mperature range.
ge.
The heating cycle of operation for heating only units Current flowing through the first Time Delay
is similar :o that described for heating/cooling units. See anSetiqcuencer cf must also flow through the heat
Figures 6 and 7. ipator. t h rur re, the heat anticipator setting must
be equal to the cunent draw of the sequencer to provide
SAFETY CONTROLS satisfactory operation.
Figure 8 illustrates the heat anti i acor adjustment.
11' h _ Recommended set'ing for sizes 03 and OS is ,3; sizes 07,
1righ Llmrc Cotcrolrto limit c outlcttii (emepcratuhesto 4 09, 10, 12 is .45.
240 VAC W _•wt. aryANGM COATYLr
jaw
oMzz~ e1V%AC/701
LZ M O. MILM L1
tOW rAA~
MOTOR
/L f0►fAa.
c [o 0 Ia ky wM ,
33 14'. l • 20
/+LNirm sro, 4
CRI CR/
a f -
i.~~le1- : ,s M►27e
24 44-
J,7I
At
JO
2A Il,r MICI r16 tl 702 701.
ti~~/-~•:l~4-1~1'r JL1T,~TyJ7 L✓'LlA/-
III TO! ►.!2 70t
/tA MlG! rf
140~32~64~11r'L- -0
Nt T02 TDS
1 ~J+iF~s!
rJA Poles rJe Tof
sip®~2 ~rLlL+---*-e-
za oj!o-T:o ~ J"tI
Ns rva
i~
rAA Mete r41 TOI
?t+11Si~f+Jlnn---~L~--12 -1}4 A 4~tJ1 !`d~A
If• SS TD/ ^
3
PC
J.✓Ut
Tag-TIMC MAY RELAY so 49
C!: - rAN CONTROL 11
F es- rust 91 47
• NLC-Mla/r LJMIT cowfRe.
U - NEATER I
S - TlRMINAL STRIP I l if 43
Figure 5 - Typ&cO line crvrtrol diagrtrn - EVADA 07A, 09A, 10A !
aced 12A
!
LJO Y.C rOQ IMI .R.4[M CrI[Yrr--~ NC rK ro I-- lr. r[. bK~I
11(C ib.r I
/Ir L!
rOrC• Mnr r nc'p• r~ra
&lot "I rA CCw.M. ra t bI w r.
Jo/ (/I I 11C
A -!J~ D at t Zrae6! f•!. E- 4
a
lf.w~_,pr f•oe 3117- 1.
Ts r f• a/
I L -a
U fe ru Nag /y If T /p
f.lu •!h IrA tl roe t rus.r.~/~-~22~~...u-~•Ir l~ylu-
ls l r-ryI. Jl.x..Il 1._-~-0-.-sir ~V I[-:00.84
Tot rr. Kte n•
T f. e•
IPA InU rla 70J n1 roe ref
rod
Tat ) MI II!
J 1. D4, t . r1'L.-~~(T-t rt.!)rT .,y~ I
if S$ ♦I ~ Ir• as ♦q
!l.T... y.IM14..11 "droell"
:r r• TOe I
T.]! ` ~ i{,,., {III
If ~
41
® -T,e•f Omer rf11'
fe {a t~.. Trvr ofur I
rC-rrr cOrrrrat Pft/r rrt! IC-rAV [orTlol QI
NL•ref,07 trMl7'orlApt r•-IYIC
JI-Ir[it(w rle-~~•» twn ee+na s
J
t.-[[O•TROL RfeA• M - YfIT[• 1 1
sf-T/R.nvt t JIAIp 1 [A-('. VTrel ArS I
qTj If - TMw14el It/J •rrlM( I► I rurf
r.re..•Im r
re.+.rtr •
if
I I Jf r..rrrl r t
I I r00 Jwn11.
F17-fs 0 - Typical hosting only unit line control disgrwn Figure 7 - Typical heating lonly unit line control diagram -
ENDH 06A oh0YM1 5 EUADH 07A rhown
J'A b4 INDIVIDUAL HEATER FAILS TO OPERATE
A. Blown or faulty heater circuit fuse.
B. Defective high limit control - HLC.
C. Defective time delay
sequencer
D. Faulty heater ckmcnt,.
FAN OPERATES 017 HEATING, NOT ON COOLING
s
A. Defective cooling cycle control relay.
T 8. Improperly connected or faulty room thermostat.
C. Defective or improper fan motor connections.
ANTICIPATOR HEATING ELEMENTS AND CONTROLS
ADJUSTMENT
Figure 8 • Thefmostat heating anticipator Electricr Fum cc whichscontains the shearing ction of elements
TROUBLE ANALYSIS controls, fuses, terminal strips and wiring.
CAUTION: Open all fused disconnect switches in
UNIT FAILS TO OPERATE the furnace power circuit before servicing.
Control replacement procedure is evident upon
A. Open fused disconnect in furnace circuit. If required, reference can be made to the wiring diagram
B. Blown or faulty furnace fuse. Check fuses A and 13. for connections.
C. Improperly set or defective room thermostat. Fan Control (FC) Make, 1 IS F S degree
D. Defective furnace transformer.
E. Blown or defective tnnsfonncrfuse -Models EUA 10 Break, 95 F ± S degrees
and 12 only. Time Delay Sequencer(TDI 7) -volt
Make, approx.
FAN OPERATFS WITH LOW OR NO HEAT 3 r seconds
-Break, approx.
A. Blown or faulty heater element fuse, High Limit Control (MLCI.7 30 seconds
F
B. Defective time delay sequencer. ) -Break, 200
-Auto reset set
HEATS WITHOUT FAN OPERATION Table 2 lists the fuses required for the control circuit
and heating clement or power circuit.
A. Faulty fan control relay. Heating dement failure may be determined with a
8. Deuce fa fan rooter, loose connections or fault concinu check across the terminals after the leads
motor wiring, y have been disconnected. To remove a faulty element,
C. Defective fan motor run capacitor •EUADA 07, 09, disconnect the wire leads, remove the clement bracket
10 and 12 units only, mounting screws and pull the assembly out of the
furnace cabinet.
TABLE 2 - FUSL SIZES
MAIN P,EC0611.IENDED FUSLi M
UNIT FULL OTOR 1EPLaCEMEf1T FUSE SIZES
CIRCUITS DISCONNFCT SIZE LOAD
AMpS CON7PO1_
i IA"PS P04EP LItIE POWER
f
El1ADA O:~A + 10 ATP -
EUAOII 03AI 1 L I•L1 • 60 Amp
45 3.? FP'I'
- cne
? Re,'d• None
EUADA 05Af
f 1A, P
0 30 Amp
EUAOH OSAi I LI•L2 EO Amp 65 3.1
111J FRPINO 'NON'
2 Peq'd. 6 Peq'd.
EUADA 07A 11 - _6
07A 1 LI•L2 100 Amp 97 3.1 10 Amp 30 Amp
3.2 FRh' 3N ON"
_ Re ' q,
d.
EUADA 09A 2 L1 L2 - 80 Amp 45 10 Amp 30 Am
LII•L22 • 60 Amp 63 3,1 'FRII- '
NON'
_ 2 Req'd. 10 Req'd.
EUhDH 09A~ 2 + LI•0 • EO Amp 45 110 Am-.p - 30 Amp---
LII•L22 • 60 Amp 63 3.2 FRII 'NON'
EUADA IOA 2 Li-L2 • IOO Amp 83 10 Amp 30 Amp -
- LII•L21 60 Amp 47 5.1 'F RN' 'NON'
2 I2Req'd, •
EUA
DA 12A 2 L I •L 2 • I Amp 83 10 Amp _30 _ Amp
LII•L22 aO Amp 68 5.1 'FRII' 'NON'
2 Req'd. j 14 Re3'd.
6
r
=L'MdN7 FAN CONTROL wGH LOW VOLTAGE
TERMINAL IN BACK 0, t.IMIT TERMINAL
i'AHtL 'ON i ROL STRIP
HEATING ELEMENT
FAN SUPPORT ROD
CONTROL
RELAY
• HEATING
ELEMENT ,
+ CONTROL
POWER
TRANSFORMER
MOUNTING
SCREWS
HEATING
TIME ELEMENTS
RELAY F
SEQUENCE +
i t
CONTROL
POWER
FUSES
LINE POWER -
FUSES
LINE OirER MA H POWER (7110 FOR EACH
FUSES TERMINAL BLOC KS HEATING ELEMENT)
t7T L HIGH LIMIT COHTR L
Figure 9 • Electric furnsp hating section control panel Figure 10 Top viey
elements o/ electric foreseer ~pyl
and control ng heating
AIR TEMPERATURE RISE
TABLE 3 AIR RISE 7EMPE;~, 7URES
-
UNIT APPROX. EXTERNAL
Air tr;npcra arc rise through the furnace should be as A- RISE STATIC PRESSURE UJA
listed ir+ Table 3. The external static pressures !isted arc EUADA -
for the o nit as shipped. 30 2
E UADti 03A -
r 51 2 - To determine air tcmperaturc rise, place EUADA 05n
therrtmometcrs in the supply and return air streams. The s S
supply air thermometer +h,~uid be at r_ast 6 fect UADA 05A 5
duv.narrc,rrn of the Unit . Re wrc the air filter and unit
LAO UIG
accc%s panels arc in plicc• cshen t,rking the reading. J 5
EUADIi OiA 2
Difference in the thcrmomctc•r readings mill be the EUADA 0A
temperature rise through the unit.
1 El ADIi 07A 7 c, 2
EUADA ICA 5
E UA (n 12:
u 5
PRINTED BY V.D.-N
cIJA-H-I-7-769-F.J.H.
7
;r I
UNITARY EQUIPMENT SERVICE INFORMATION
INSTALLATION
SECTIO14 E-USI
DECE>M1E40 1981
CONDENSING UNIT, DATED ED AIO, lm
eas
SPLIT SYSTEM,
SWEAT CONNECT
MODEL -
i TYPE
y.
RAS 61A B
RAS 63A,B 269-2148
RAS 34A 269-22A .
RAS 13A B 269-23A,6
RAS 4A,B 269-24A B-'`~ .
3A 269-25A~C
Tu4A,6
RAS 103A 269.101A
RAS 104A 269.102A
RAS 123A 269•103A
RAS 123A When the condensing unit is located
Ras 15 3A 269-104A above the evaporator unit, limit the
154A 269-105A vertical distance to 35 feet.
269.106A Figures 1, 2 and 3 and Table I list
A liquid line solenoid valve, refri_ unit dimensions and weights.
gerant drier and evaporator fan relay REFRIGERANT PIPING
are shipped within the casing of the
RAS Condensing Unit for field instal-
lation.For ro The recommended liquid and suction
these items see per applicationdof lir,~ sizes and m-rxirum measured long th
of run are shotm in Table 2.
"Piping" sections chat follo,"-j.
CLEARANCES AND UNIT LCCATIOil Limit suction line pressure drop by
choo;.ing the most direct ro,ite, using
as few fittings as possible. The equi-
For design volume air flo;~ through valent footage of the suction line must
the condensing coil, a minifn;m cleer- be held below 150 feet, which is based
ante of 22 inches is required at any one side assuming r. the maximum measured length of 60
the coil are completelytfree.id fees o if the feet given n In Table 2.
unit is placed under an overhang,
allow at least 6 feet clearance a;,ove 120 The condensing coil t the RAS100,
the unit to prevent recirculation of and 150 unit is split, providing
hot discharged air. a separate cond nsing circuit for each
compressor. The two circuits are to be
Limit the length of refrigerant ateeevaporatorsnoryatdualtcircuit eva-
piping by locating the condensing porator coil.
unit as close to the %vaporator as
possible. If the unit is to set on
the c CAUTION; Under no circumstances are
grounds provide a ..our-inch thick the liquid and suction lines to be
concrote slab for mounti,zgo manifolded into common circuits,
0 1017 THE TRAMr COMPANY. LA CROSSE. W{1QONVIN
1
4
! EUC.
CONN.
S, -
C FIGURE I Nodal RAS 60 Unit
x
^'-A S LIQUID
SUCI I O N
S ELK. . S -A--
CONN.
SUCTION tINE 2
SUCTION tM! 1
LIQUID LME 2 - j
LIQUID M
l
t iIQU}D tM!
f Nc 1
SU
54^1, CTLON
0
FIGURE 2 - Model RAS 70 and 80 Unite wA. xouNTlNO xals
ELK.
CONN.
_ ~ II
1 'SUCTION LINE No. 2
SUCTION IINE No. I
IIOUIL LINE No. I' lOUID It
NE No, 2 -0,4 DIA I MOUNTING HOLES
FIGURE 3 - Model RAS 100, 120 and 150 Units
SOLENOID
VALVE
1, Unsweat or cut the seal caps from DRIER
the refrigerant line connections of TO VAPANSIOx
the evaporator and condensing unit. VAS ,
CAUTION: If the seal caps of the SIGHT
condensing unit are to be removed GLASS
by unsweating, drill a small hole (OPTIONAL)
in each cap before applying heat.
FIGURE 4 - Liquid Line Components
2. Install Lhe liquid line solenoid
valve and drier, which are shipped NOTE: For pro?er operation, the
with the condensing unit, in the "FWAIII arrow on the solenoid valve
liquid line at the evaporator unit, and drier must point toward the ex-
(see Figure 4) pansion valve.
TABLE 1 - Unit Dimensions
UNIT A B C D E g
if WT, (LDS.)
RAS 60 31.1/4 45-7/8 26 -2-- 4-7/8 315
• RAS 70 30-3 8 61-7/8 25 62-5/8 1-1 2 -6- 1'8 3-5 8 400
RAS 80 30-3/8 61-7/8 31 62-5/8 1-112 26 _ __2-1/8 3-5/8 430
RAS 100 41-3/8 75-3/8 31 76-1/8 2 36-1/2 2-1/2 1-1/2 ;50
RAS 120 41-3/8-- 81-7 8 34 82-5 8__ 2 36-1 2 2-1 2 1-5 8 842
RAS 150 41-3/8 44-7/8 34 45-5/8 2 36-1/2 2-1/2 4-1/4 920
UNIT J K L M N P
R S
RAS 60 - 3-7 8 6-3 8 - - 6-3 3 2-1/2
RAS 70 - 6-3/8 8-7/8 -
RAS 80 - 8-7/8 6-3/8 - 5-1 2 3-3 4
RAS 100 6-1 8 11 2-1 8 4-1 8 - S-1 2 3-3 4
RAS 120 3-1/2 6-1/8 11 _ 2-3/8 101 2 2- 8
RAS 1.50 6-3 4 6-1/8 11 7-3/ 10-1/2 2-5/8
~ 2-3/8 - 7-3/4 4 10-1/'F 2-5/8
3. A liquid line sight glass is a valu-
able aid for future mair.cenance. In-
stall it imwdiately a:aead of the
expansion valve (see F'.gnre f),
4. If the condensing unit is located ~s,
above the evaporator, instaii a "P"
trap at the base of the verticai run
and again at each 25 foot interval, FIGURE 5 - Recommended Method of Mounting
as the vertical distance requires. F.y.pansion Valve Remote Bulb
5. Install the remote bulb o: the ex-
pansion valves of the B;I/DIIP 1CO or I;IRING
150 unit, if being .ised, on the suc-
tion lines immediately outside the Recommended wire and fuse sizes are
unit casing. listed in the wirin3 sections for the
specific
Alvays install the bulb on a hori- a'hyconvcnient location ~tsuci'hanethe for-
zontal run of pipe at a place wbere nave fan comp ) arLment or ad'
liquid refrigerant cannot be trapped, -cent to
t',e furnace or blrr;er coal ...:nit.
The line nnist be clean and the bulb
fastened securely tc obtain good con- The total resistance of the thermo-
tact with the line. Stat le:d wires sho.ild noL exceed I
Olin to assure proper voltage at the
Insulate the installed bulb by contactor. This f.ncludes wiring from
wrapping iL with Arnaflex insulation th^ transformer, through the Lhermo-
or equal. Do not kink the capillary stat Lo the RAS unit and bac}: to the
tubing. Figure 5 illc.st;ates proper transformer. Follow the infermation
bulb location on the pipe. given in Table 3.
TABLE 2 - Line Sizes And Maximum Length
UNIT SUCTION LIQUID MAX. TABLE 3 - Thermostat Wire Sizen
LINE LINE LENGTH
COPPED. UIRB MAX. TOTAL RUN WIIICH
RAS60 1-1/6 1/2 30 SI7.E WILL NOT F.XC'1-E1) ONE OICI
RA970 1-3 8 5 8 60
RA380 1-3/8 5/8 _ 60 24 Gage 35 Ft. _
RAS100 1-1/8 1/2 _ 30 _ 2c Gage 60 Ft. _
5 8 60 18 Gage _ 180 Ft.
RAS120 1-3 8 5 8 60 Gag '--14-5-Ft.
RAS15U 1-3/8 5/c; 60 ► Gage 36-5
'rt.
208-Volt Operation
The ti+eigiit of refrigerant required
For 208 volt supply poser operation for each component
reconnect the control of the system is
power transformer shown i 'C'able 4, The total charge is
as given in the wiring dig ram calculated by adding the or cap the unused transformer • rape requirements of ench part coFrg~1eF'eight
lead. system.
LEAK, TESTING ,
Ex-gE 1ael Teo Installation consists
Leak test the system under a 100 psig °f an RAS60 condensing unit, Blt5O
pressure, or as local code requires. evaporator unit and 20 feet of 1/2"
Use refrigerant as a tracer gas and oil_ liquid and 1-1/81,
pumped dry nitrogen to develop the test
pressure. kASb
B1£5 6-1/2 pounds
1-3/4 pounds
CAUTION: Do not use oxygen or 20 feet of 1/2" 1/810
acetylene to develop test pressures. liquid and 1-----
A violent explosion may result. suction line
Total Charge 1'3 4 ounds
EVACUATION 10 pounds
r
Evacuate the system to 2.5 mm Hg ab_ Example 2: The installation con=
gists of an
solute. Break the vacuum at least once P
R condensing unit,
with oil-pumped dry nit•-ogee to assure feet 150 evaapora porator unit and 40
the removal of all moisture and then feet of ne liquid line and 1-3 /8"
re-evacuate, suction line.
CHARGING
RAS150 - Refrig/Circuit -
An accurate scale or charging cylin- BH/BlIP150 - Reuid 4 pounds 40 der should be used when charging the Feet 5/8" lign -duit 2~, pounds
system in order to avoid undercharging Suction Line
or overcharging wht.ch can cause unreli- kefrig ig/Circuit
able operation, Total Per Circuit 5-3 4 ounds
Total System Charge 17-1/2 pounds
34-1/2 pound
TABLE 4 - Refrigerant Charge Weights
CONDENSING CHARGE (LBS.)
UNITS EVAP.
R-22 CIIAkCE _
U?7IT (I,BS. ) EVAP.~ C.'fA;tGS
- - UNIT
PAS 60
6_1/2 _
60 R-22
B) I, BU, E)) BU F.C50
S70
PAS0 12 BH, BU, EIi, EU70 2-1/2 )%F50 1-3/4
RASI00 6-1/2* Bfi/BIIP100
t3)i/B)iP150 1- 1/2* BF10
RAS 2-1/2
120 7-1/2* 2-1/2* BFI00
RAS150 g* 1-1/2*
_ BF125 2*
- BF150
REFR;GERANT LINE CHARGE 2-1/2*
LINE
SIZES -C''E wT_ (CBS.) R-22
10 Ft, 20 Ft. 30 Fr. 40 Ft.
112" Ll(2. 50 Ft, 60 Ft.
1-1/8" SUCT. 3/4 1-3/4 2-112 _
5/8" LIq.
SUCT. 1-1/4 2-112 3-3/4
5 6-1/4 7-112
5/8" LIc~.
1-S/8" SUCT. 1-1/2 3 4-1/4
5--'/4 7-1/4 8-3/4
* Per Circuit
FAS60. 74. 80 Unity
4. Liquid charge the lead compressor
1. With the disconnect switch open, circuit through the gage port of
remove wire number "44" from its liquid line charging valve.
terminal "1" of the control rela
y the vacuum of thin the system will
(see wiring diagram). draw most of the required refri-
Perant into the system. If the
2. Lower the thermostat setting and pressure within the system equalizes
close the disconnect awi► with tae pressure in the charging
will open the liquid linecsolenoid cylinder before the required
valve. charge has been drawn in, proceed
as outlined in Steps 5, 6 and 7.
3. Liquid charge the system through 5. Open the disconnect snitch and re-
the gage port of the liquid line
shutoff valve. The vacuum within connect wire number 62 to LPC1.
the system will draw most of the 6, Front seat the liquid line valve
refrigerant charge into the system.
If the pressure in the system on the lead compressor circ
equalizes with the pressure in the
charging cylinder before the 7• Close the disconnect switch to
required weight is drawn in start system operation. Allow
reed a outlined in Ste s 4' pro the system to operate until the
and 7, p ' 6 required weight cf refrigerant
has been charged.
4. Open the disconnect switch and E. Close the charging cylinder valve
connect wire number "44" to ter-
minal "1" of the control relay. and back seat the liquid line
charging valve.
5. Front seat the liquid line shut-
off valve. Follow the above steps to liquid
• charge the second circuit.
wire number 62 from LPCI to prevented
6. Close the disconnect switch, condenser fen operation during initial
starting the compressor. /plow charging and wire number 64 from LPC2
the system to operate until the to prevent the second circuit compressor
required weight of refrigerant from o eratin
has been charged, p 8• Reconnect both irireg
if system operation is required to com-
7. Close the charging cylinder valve pl.eie Che charging,
and back; seat the liquid line ..ONTROL TESTING
Lbutoff valve.
For reference, the settings of the
ItAS100h150 Units high and low pressure controls are
s
hown in Table 5. These controls are
factory st and are not e adjust
1. Open the system disconnect switch able. Ifea control failsltod dorm-
and
and remove wires number 62 and 64 perform -
LPCI and LFC2. This is done properly, replace it.
to prevent both compressors frcm NOTE: oLerating during the initial stages separate If the system includes
of charging. separate evaporator fan units
(dual circuit RAS100, 120 and
2. Lo;rur the Thermostat Setting and 150 units) both evaporator
th'n close the disconnect switch control teued operate during the
tr, energize the liquid line solen- sting. Check to be
oid valves. sure this is true before pro-
seeding,
3. Charge the circuit of the lead
compressor first. It is located Pumpdotirn Control:
oii the left side of the unit when
facing the access panel. With the syster., operating, raise
the thermostat tr its highest setting.
5
The compressor should continue to To check control operation:
operate, pumping down the system,
until the suction pressure drops to 1. Operate the system. Ambient tem-
approximately 20 pstg. At this point, perature to be over 6r, degrees
the low pressure control (LPC) should with all condenser fans operating.
open, stopping the system.
2. Remove the sensing bulb from the
High Pressure Control: side of the unit and pack in dry
With system operating, raise the ice to reduce bulb temperature@
high side pressure by covering the 3. At 65 degrees the control contacts
face of the condensing coil with card- should open to stop condenser fan
board or paper. The high pressure operation. On three fan units,
control should stop the compressor the third fan should be tested for
and condenser fan at approximately cut-out at 45 degrees.
405 psig condensing pressure.
4. The control should operate at the
NOTE: At lower ambients it may temperatures given above, f 3 degrees.
be necessary to remove the con- This control is nonadjustable.
denser fan motor leads from the If it fails to operate within the
contactor(s) to cause the pres- limits given, replace the control.
sure to rise to the 405 psig cut-
out point. OPERATING PRESSURE AND COMPRESSOR MOTOR
Reset Relay,: CURRENT
Whenever the system is stopped by After the system has been in opera-
either the compressor overloads (OL), tion for a period of time, check the
winding thermostat (WT) or the high operating pressure against the values
pressure control (HPC), the reset contained in Table 6. The cause for
relay (RR) locks out the control cir- any abnormal reading must be corrected
cult, preventing recycling. To reset, before proceeding.
turn the room thermostat from "COOL"
to "OFF' and Sack to "COOL." Voltage at the compressor terminals must
be within plus or minus 10% of the name-
TABLE 5 - Control Settings plate rating. Measure voltage while
the coml~ressoi fs starting to deternir.e
LOW PRESS. CONT. HIGH PRF_,_SS. ^UNT, if the voltage drops below the minimum
CUC IN CUT our CUT PI CUT OIfI value during the locked rotor current
- - surge. Cheer; voltage at com;ressor
50 psig 20 psig 325 psig 405 psig terminals rattier than at disconnect
- - switch to determine if feeder, loose
terminals, or defective wiring is
Fan Temperature Control: causing voltage problems.
The purpose of the fan temperature Voltage unbalance on three phase
control is to cycle one (tvo fan units) systems can caLrse motor overheating and
or two (three fan units) of the con- eventual failure. Haxinr.rm allowable
denser fans to control condensing unbalance is tiro percent. Voltage un-
pressures. At ambient temperatures balance is defined as 100 times the
below 65 degrees, one fan operates sum of the deviation of the three
with the compressor. The second fan voltages from thr: average without
is operated by the fan temperature regard to sign divided by twice the
control whi.ch closes its contacts to average voltage. For exarr;le, if the
operate the fan as ambient temperatures three measures voltages are 221, 230,
reach 65 degrees or over. On RAS120 227 the average voltage would be:
and 150 units, the third fan cycles •
off at ambient temperatures below 45 221 1 230 + 227 226 volts
degrees. 3 °
6
and the percent voltage unbalance would not acceptable and in this example, 2.2% vnbalance is
be: should be notified to correct it. This
100 x 226-221 + (230-226) + (227-226 such voltage unbalance could result in
• 2 x 226
• 2.2% - Increase in motor winding temperature. I
This results in decreased motor life. III
TABLE b -Normal Operating Pressures)
OUf:DOOR AMBIENT TEMPERATURE
UNIT PRESSURES 75 85 PRESSURES 5 (PSIG) 105 115
-b6 64-68 66-70 69-73 72-76
DISCHARGE -237 261-271 295-305 33 380-390
RAS60 SUCTION F231-2441
RAS10 SUC'PION -70 b8-72 70-74 72-16 77-81
300-310 341-351 381-3,'1
DISCHARGE 266-276
SUCTION 62-66 64-68 67-71 69-73 72-76
RA580 DISCHARGE 221-231 255-265 292-302 328-338 369-379
RAS100 SUCTION 62-66 64-68 67-71 69-73 72-76
DISCHARGE 211-227 246-256 280-290 320-330 358-368
RAS120 SUCTION v5-69 667-71 70-74 72-76 74-78
DISCHARGE 228-238 259-269 295-305 337-347 t37 -386
RAS150 SUCTION 63-b7 65-64 67-71 64-73 -382
DISCHARGE 225-235 257-267 294-304 332-34.
NOTE: Above information based on:
1. Evaporator Conditions 80 degree dry bulb and 67 degree
• wet bulb air entering evaporator coil -
2. RAS60 - 2,000 CFM RAS10: 9,300 CAM
RAS70 - 2,700 CFM RAS120 - 10,200 GFM
PAS80 - 3,000 CFM RAS350 - 14,000 CFM
HIGH PRESSURE ,
CONTROL -r -J
CAPILLARY TUBE
ts• LOW PRESSURE
I ~ CONTROL
CAPILLARY TUBE
Y1
FIGURE 6 - SUCTION LINE
Model RAS 60 Unit k ACCESS VALVE
_J - ,~SUCTIOK
LINE
ti ~ ~•.~LIOUID
DISCHARGE LONE L!NE
3HUTCFF VALVE LIQUID LINE
SHUTOFFVALVF
Since Tl.e Trent Cynpany his a policy of continuous product Improvement, it ro;eryes the right to change specification and design without notice,
PRINTED BY P.D.-V 7 E-RAS1-6-1167-Y,J.1•I.
Installation Check List
for
RAS Units
Date
.
n
.4000400.464*
Customer's Name ressor Serial do . • • • • • • "
Comp
Address
•~~Unit• '
iSode?.
iRE START-UP I:S; pECT 1017
All crating clear of unit
1• rovide adequate service access
2. Equipment located to p _
3. Proper electrical supply '+olttge available
w, 9dequatc fused disc( neon- switch installed
5. Proper size fuses in disconnect switch
f,~ Proper size wiring to unit htl to terminals
All wiriug inside unit connected tro erly
• g. Thermostat provided and wired in op
g. All Wirt-17, checked for prop and tight aligned 10. Fan drives properly
u3ted
Fan belts properly adjua
11. by hand
12. Fa. 3 turn over freely r
13. Condenser and evaporator fan set screws tightened the
flat of the shaft licabl-
14. All bearings lubricated where app
15. system leel, tested at 100 psig absolute pressure lbs.
, System Evacuated to 2.5 mm-
16.
17, Refrigerant charged
18, Exj:ansio-l valv,. bulb attac:~ed securely
START-up CHECKS JaP• ecilities Amps
stopped 3 times to check starti~ii, Amps
1, Unit started and
2. Fans running correct rotation ect usted to Provide required
3. tops
orar.or fan RFM properly adj air
air flow against external static pressure
Amps
Motor current taps
Compressor - Circuit [:v. 1 - fps
Circuit No. 2 fps
(inde~isar fan Voss
Evaporator fan unit running, across each phase F
5. Voltage at unit, Deg. F
6. Supply air temperature beg, F
mturn air temperature psig
g. Ambient temperature aL cor.denser coil psig
9. Suction pressure - Circuit No. I - Psig
Circuit No. 2 psig
10. Discharge pzessurr: - Circuit No. L psig
at•cuit No. 2 ` psig +
11. HPC cats out at - Circuit No. 1 y psig
Circuit No. 2 psig
12. LPC cuts out at -Circuit No. 1 osig
Circuit Va. 2 psig
- Circuit ''u. I
13. LPC cute in at Circuit No. 2
All capillary tubes ties: duwn to prevent excessive
14.
vibration rubbing _
15. Unit free from rattlers and vibration
16. Untt ceneinside onto outside
17, Operation owner
_ e~f
FILE: ~ Joe C ' + UNITARY SINGLE PACKAGE AIR A'S~~IN~l
CONDITIONERS, Climate Cbanpsr. S2 - !5 Tons.
[*A CROSSF WISCONSIN :odel SUA•SUW
Ins+allations, INSTALLAT19IJ
.AC• The Trans Company has a porky of sonNnuoos p "Od SEFTElIBER,
11 1, it we"Os right to ibong• spautko!ioms and 19%
Mir" v4sovt "Ike. SUrEfMMS I-SUA4#1XI,2
DAT10 AUGUST, net
SELF-CONTAINED DELUXE
t . AIR COOLED AND NEATER
u C(ULED UNITS
MODE1 MODEL MODEL MODEL
SUA301A SUA754A SUW3014 S0754A
SUA303A SUA754B SOW303A SUW1548
SUA304A SUA10030 SM04A SUW10038
SUA501A SUA10048 SUW501A SUW10048
GENERAL INFORMATION SUA503A SUA15030 SUW503A SUW1503B
Leave the crate intact until the unit SUA753A SU!.15040 SUW753A SUW1304B
has been set in place. If s 10 or 15 S1A753B SUA15040 SU*7538 SUIV1504C
ton unit is to be recessed "n the wall,
move the nasoeplatc to a location easily
accessible after installation.
OTHER FAN DISCHARGE /.RRANCEftEI4TS
OPTIMAL EQUIPMENT Fans, installed at the factory to
discharge vertically, may be changed
instructions for installing heating to other fan discharge arrangements
described below;
coil return a:r grilles and discharge as
plenums are in Aeparate Trane service
liter,uure booklets.
DUCT
,:OLLAR
FAN HOUSING
IN VERTICAL
DISCHARGE
C • COVER,
POSITION PLATE
I I
I
ON 3, 5, 1&10 7 I
TON MODELS ! + I i
t
INSTALL 1
SHEAVE ON y I
OPPOSITE END
OF SHAFT ~t I
J; -j :i
TURN FAN
HOUSING
i
REWIRE MOTOR END-F JR•END
TO REVERSE FOR H)RIZONTAI-
ROTATION DISCHARGE
FIGURE 1 Convertl-,, Fan To Horitontal
Discharge
I
A HORIZONTAL DIS_MRCE 3, S &
D_ (Figure 1) S. On 10 t" bodels. move the fan
sheeave to the opposite end of the
1. Remove front panel and back fan shaft.
section panel.
6. Shorts, fan halts art required on
2. Reaws far, belt. (Loosen aotor to Models MA15033 through'SUA1504C
rale~ee belt tension, Do not force and SU1115033 through SUW1504C ~,n
belts over sheaves, the fan is in the rear horieontal
position, Usa Lwo APSb belts.
3• Remove the bolts holding the fan 7. Reverse the motor direction of rota-
scroll to the supporsc ,-hannels and
lift the fan out through back of coon. Refer t~ on the l Instructions
unit, motor terminal box x cover, r,
4. Move the fan sheave to the opposite S. Instnll the back panel over the
end of the fan shaft. opening in the top of the unit.
The 2J inch lip on the back panel ~
5. Turn the fan scroll erd-for-cnd, should extend down the front of
and bolt to the support channels the wait to meet the front fan sec.
tiOn
with the discharge toward the back, 2
. access panel. Refer to Figure
(Soo Figure 1) flovuting holes are 2,
Provided in the fan scroll.
9. Replace front panel.
6. Align the fan and motor sheaves, SACK STALTURN
install the belt, and adjust the AND INTA ON
belt tension. The belt will depress ToP oFUNIt
about 1 inch under light FRONT OF
UNIT
pressure
when properly adjusted.
7, Reverse the motor direction of rota-
tion. Refer to instructions on the
motor terminal box cover, •
8. Remove duct collar from top panel FAN SECTION
and replace with cover
ACCESS PANEL
panel from
back fan section panel.
9. Attach duct collar to back fan sec-
tion panel and attach panel to unit,
TOP PANEL TURNED
10. Replace front panel, AND INSTALLED ON
LACK OF UNIT
REAR .IA....1 RIZONTAL sCHARCF 10 & 15 Tops
(Flgur~! 2)
1, Remove f:
ant and back fan section FICURE 2-
panels. SUA/SU11 10 6
15 Ton liorizont\
2. Loosen the fan motor mounting baits, ran Discharge Arrangement.
and remove the fan belt(s). BACK
REAR HORIZONTAI. DISCHARGE 10 b 15
3, Remove tha entire unit top panel. TOpS Figures 3-5
with the fans attP.hed, 1. Remove front itnd rear panels from
fan section. Remove rear panel of
4. Turn the top panel end-for-end and coil section,
install it on the back of the unit: 10
as shown in Figur? Z. 2. Unfasten fan section from coil
section.
2
3. Rotate entire fan section 180 5. Attach fan section to coil. section
degrees (end-for-end) on vertical using bolt holes vacated when rear
axis. See Figures 3 and 4. coil section panel was removed.
4. Rotate fan section 90 decrees 6. Attach rear panel of coil section,
(horizontal axis). See rigure 5. that was removed in Step 10 to top
of unit.
7. Replace fan Oection panels.
E
i FRONT
- I FRONT
FIGURE 3
Standard Discharge _
_ FIGURE 4
After Step 03
~ r
FIGURE 5
Back Rear
Horiz. Discharge
f FRONT
3
BACK W VF.ATICAL DISCHARGK 19 6 1S TON
MODEL, Figures 6-9
1. Pesiove front and rear panels from
fdn section, Reswve rear panel of •
coil section. \
2. Convert fan section to rear horizontal
discharge per (Steps) 1-7 of REAR a~►
HORIZON'T'AL DISCHARGE 10 & 15 TON
instructions on Page 2. See Figure 7.
3. Unfasten tarn section from coil section.
4. Rotate entire fan section 180 degrees
(end-for-end) on vertical axis.
See Figure S.
FRONT
5. wntate fan section 90 degrees (hori-
zontal axis). ;tee Figure 9.
6. Attach fan section to coil section
u*ing bolt holes vacated when rear
coil section parcel was removed.
7. Attach rear panel of coil section that was removed in Step 1 to top FIGURB 7
of unit.
After Step f2
8. Replace fan section panels.
FRONT
J fR.OHT
FIGURE 6 FIGURE 8 •
Standard Unit After Step f4
4
• rr
1 ~
s
i
1
l
4
FIGU" 9
Back Rear Vertical Discharge
FRONT
t
SHEAVE ADJUSTMENT
For correct fan speed set the motor
and ESUW1003Bs-SSUW1504C are shipped
sheave from the data in Table 1, With block-offs for both front and
back of the unit. nseC,.rd one not needed.
TABLE I-- Fan Sheave Adjustment
TURNS RPM RPM RPM RPM RPM CONDENSATE DRAIN
OPEN TON 5 TON 7 TON 10 TON 15 TON Install a condensate drain line from
5 655 the 3/4 inch FPT fitting inside the
4 640 545 552 743 690 unit. Rormall a 3/4 inch 574 575 770 715 adequate for average runs. pipe is
4 724 603 598 796 741
3k 759 631 621 823 754
3 793 660 645 850 789 "ATER PIPING - SUW MODELS
2J 828 689 666
862 875 814
1 896 716 650 902 834 City Water - Fi ure 10
745 41<< 929 863
1
931 715 136 455
1 965 804 760 837 Minimum water pressure to the unit should
CLOSE 965 833 782 981 912 be 15 psi. Maximum water pressure to 1000 1008 936 the unit should be 90
For CFM At Given ESP And Fan RPM Pressure reducing valvebetweentthe a
s
Re 4 r to Table 5. (above), strainer and the automatic water regu-
lating ,calve in the water supply line
RETURN AIR if watOt pressure exceeds 9, psi,
Return air may be drawn through tha To maintain head
sure
front, the back or both the front acid with city water ofrvarying ten operating
the back of the unit, If all the return install an automatic water regulatinge,
air is to be dr. ehrough the back of valve, available from The the unit Installation instructions arenincludedy.
w~t move the block-off from the with the water cooled units as well ss
rear opening to the front opening. S with the water regulating valve.
WIRIlZtG
I Wire and fuse sizes are given in separats
wiring diagram supplied with unit.
Electrical knockouts are provided in
the sides of the unit.
I
CONDENSATE Figure 12 Illustrates interconnecting
DRAIN WATER wiring of air cooled condenser fan
WATER SUPPLY motors or cooling tower pump and fan
RETURN motors.
J L1 L7 L5 SEE L) 1_2 L3
SHUT OFF NOTE
b
VALVE
STRAINER
UNIONS
?RCSSURE
REDUCING
VALVE
(IF REQUIRED)
*IGURE 10 - City Water Piping
Make provision to drain piping to pre-
vent cold weather freeze-up.
Cooling Tower - Figure 11
Provide a separate drain in the water COOLING TOWER PUMP COOLING TOWER
supply line to facilitate draining the FAN MOTOR
system for service aid repair. NOTE: Connect to terminals 4 6 5
on SUN 3, S & 7. On SUW 10 6 15
Adequate controls for controlling tower connect to terminals 1 & .1 on CC1.
water temperature must be provided.
FIGURE 12 - Typical 3 Fhaae VLriuC
Schematic Fov Cooling
Tower Reap And Fan Motor
REF:IIGERANT PIPIM, - SUA MODELS
CONDENSATE RETURN
DRAIN TO The maxicc,m allowable length cf either
TOWER I the liquid or hot gas line of the sizes
SUPPLY recommended in Tab ks 2 and 3 is 60
FROM lineal feet. If lines are suspended
TOWER
from the building, use isolation hangers
to prevent the transmission of vibration.
•r I
Unnweat or cut off the seal caps from
the connector tubes on the liquid and
V hot gas lines.
:
/ CAUTION: Before applying heat to
4 - -
the seal caps, relieve the holding
VALVE SOUT OFF charge by drilling a small hole :n
VALVE one of the caps. Also, wrap the
service valves with wet asbestos
to protect them from warpage.
FIGURE 'll - Cooling Tower Piping Provide a liquid line eight glass.
TABLE 2 - Refrigerant charge Weights (Approx.)
NOMINAL SUW SUA MMODELS*
UNIT MODELS AIR
CAPACITY PER CIRCUIT' CONDITIONER CONDECAS NSERS LIQUID LINE
CHARGES
PER CIBCUI? PER CIRCUIT LENGTH 3/8 1/2 5/8 3/4 718
3 3 2.5
5 5.3 2.8 3
5.50 20 .63 10 .37 .7 1.2 1.7 2.4
7 8.7 5.2 11.00 .74 1.4 2.4 3.4 4.8
10 5.25 2.0 6.5** 30 1.11 2.1 3.5 5.1 7.2
15 _ 8.75 3.5 9.0** 40 1.48 2.8 4.8 6.8 9.6 50 1.d5 3.5 6.0 8.5 12.0
* Based on run of 20-40 actual feet without an unusual number of fittings.
Refer to the TYane Reciprocating Refrigeration Manual for pipe sizing at
other conditfont.
Charge pe: circuit.
LEAK TESTING - cqA MODEiC
INITIAL OPERATION
Leak test the refrigerant system under
a pressure of st least 100 psi or as Unit operation is controlled by the
directed by local codes. Use oil temperature control selector. See
dry nitrogen to develop the test pressure. Gue" ahippped ed with and Ks
de sh the unit.
t.
CHARGING - SIIA MODELS
CAU;IUN: AIR COOLED UNITS WITH
See Table 2 for refrigerant charge CRANKCASE HFATER8 - Before operating
weights for the unit and lines. Deter- the the sunitwitch tforo "theOFfirst tlo turn
mine the required charge as follows; disconnect switch to l'" and close the
Example - The installation consists compressor crankcase heaterLe Wthe
ait
of an SUA5 Climate Changer, a CAS5 5 hours before starting the unit to
Air Cooled Condenser, and 40 feet
allow the heaters to vapori
of liquid line. liquid refrigerant in the cam-any
From Table 2 crankcase. This ompresaor J
procedure
safeguard against p ssible damage
SUA . . . . . . . 2.8 lbs. to the compress
CAS5 . . . . . . 5.5 or bearing surfaces.
40 feet 1/2" tubing . . . 2.8 Reae_ t l y
Total Charge 11.1 lbs. Wbenever the system cuts out on one of
TABLE 3 - Recommended Refrigerant Pipe Sizes* the safety controls, the reset relay
CONDITIONER CONDENSER LIgURIG, LINE SIZES will lock out the control circuit to
prevent continuous unit cycling. To
reset, turn the temperature control
SUA30 CAS30 3/8 5/8 selector switch from "COOL" ► " "
SUA50 CASSO o OFF
SUA 5/8 5/8 and back to "COOL". If unit continues
CAS75 5/8 7/8 to lock out, call your serviceman.
SUA100 CAIGO 1/2** 5/8**
SUA150 CA150 5/8** 7/8**
* based on run of 20-40 actual feet Control Testing - S11W Mode la
without an unusual number of fittings.
Refer to the Trene Reciprocating Model SUW unite are tests.' st the
Refrigeration Manual for pipe sizing factory for proper opevati,m of 0e
at othe~ conditions. pressure controls. No further testing
NOTE: The above pipe sizes apply it required.
also to oversize condensers.
Each circuit, Control Testing Sa ►i9jpls
Proceed to liquid charge the required Attach pressure gages to the line
weight of refrigerant at the liquid
lice valve in the air conditioner,
the tings.
Table 4
~ lists valves control settings.
TABLE 4 - Pressure Control Settings should function at the cut-out point
given in Table 4, Do not allow suction
U!1'iP HIGH 2RESSURE LOW PRESSURE pressure to drop more than 5 psi below
CONTROL CONTROL the cut-out point. If the control
CU' -OUTCUT-IN CUT-0 CUT-IN
SUW 380 300 fails to function properly, replace it. 0
aUA 405 3`5 ~ 60 Remove the air restriction at the
60 evaporator coil to raise auction pres-
sure. After suction pressure reaches
the cut-in point, reset the control cir-
With the system operating, block the suit to start the system,
flow of air through the air-cooled con- Low Pressure Control - SUA 7 And 15
denser. Tha high pressure control Ton` Units
should stop ti system at the cut-out
point given in Table 4. Do not allow Model SUA 7~ and 15 ton units have a
condensing pressure to exceed the cut- pumpdown cycle. To test the low
out pressure by more than 10 psi. If pressure control on these units, turn
the high pressure ccnmtrol fails to stop the control selector switch to "OFF".
the system at the designated point, The unit will pump down and shut off
replace the control, on the low pressure control at the
Remove the block-off from the condenser, prQaeure listed in Table 4.
After the hf,;h pressure haj cropped To restart the unit, set the control
below Lhe cut-in point, reset the con- selector switch to "COOL". As suction
trol circuit to ralstart t3-e sys!:em, pressure reaches the cut-in point
See "Reset Relay," operation will be resumed.
Low Pressure Conc of - All Except SUA
1 And 15
Reetrict the Clow of air Ac.osa the •
evaporator coil. With the system
operating, the low pressure control
ZABLL 5 - Fan Performance, Water and Air-Caoled Units
[TO, DRIVE WITH
RANGE OI SC H. _ E%'fLEHAI 1i ►RCfSV R[
PLENUM Y,
ODCL U1►MS CPM _ _ h.
RPM RIIP RPM ■HP RPM tH► RPM 11/P RPM IH/
RPAE 111► R71f tHP R►M {HP
APM I OOU 600 •
,13 61/_ _17 777 .2: 1S2
1}00 660 .17 712 22 Ili .27 {91 '2/ 170 .31 197 .10 lo6_{ .U II N J7 Isle a
SUW70 633-1000 1]00 720 .27 711 ,71 .33 ►6S .79 1071 .<t 1011 !7 12t{
SUA70 - .77 776 -.39 1009 -.1510ON •{f 1352
1700 750 .2t 172 _,l1 fl[ - _•1r t171 1716 .-f1
_ t<6 1012 .1l~ 5107 {0 116[ .[1 1272 t•_ l37f I.CA
14100 Ill .33 901 -
.12 961 IB 5027 _
J1 160 •11 11 2 AS 1200 -
,77 1711 1+01 1,17
IE00 715 2SS t}2 71 671 .lt 7J8 .13 11t .>K H2 .it
1600 414 .JS 17J ,<2 726 ,/9 _763 57 tl/ "0 ,66 N1 .t7 f0lS IO7_ If2! L!i
SUWSO 545-833
_ f .79 /tS ,f1 1•A1 1,21_ Ifp 1.45
:000 617 ,19 773 ,K 716 ,N, 176 Jf 111 .17 T7i
SUA30 - {tl 997 101
II]! 577-"'
2z00 750 ,63 796 .7) Iii .51 55! .90 lJ7t no - iu 1,10
toz5 1.SO i t1s Lis
2/00 II .U Nl .5i 707 LOS 97C 1.7:5 '.071 I.ft 107/ 1,14 11U L{1
2400 199 ,27 331 .3) 606 .79 6!6 ./6 701 As N9 60 796 ,61 611 .IS 194 r,01
2700 N1 79 610 .4S 651 51 _701 .S9 717 .6) 711 .7! t29 .83 912 1,01 116 1.11
SUW73 572.782 7600 677 52 667 - - _ - _
.60 717 {I 905 JI 711 .1A U1 !2 M9 700 91{ 119 _101! 1.<1
SVA7! 3700 6d6 71 725 _ - - _ -
.70 706 .ib e0 1.Ot {7/ 1,17 116 E 22 /82 1.12 1090 1.[/
3600 718
.92 781 .f9 t22 1.0/ 1!{ 1.18 553 L31 /2{ 1,1/ MO t.11' 107: 1,61 IOl1 1,Y•
3000 111 ZS Si< .12 611 12 697 ,31 _717
)300 519 •7i 122 17 171 f 00 9,3 1.31 1 1 L!t
,17 663 .!7 729 .70 100_ ,90 t71 1.71 921 I 5 1011_ I s{ 10 2 1.lI
SUW 1 DO 7U-IOOt 1000 $97 J7 6U 61 711 .77 7p- • ~ _
SUAfOO - .91 1 1.33 1.97 1 77 969_ t3 S 160_9 1.91 -1177 7.7_0
1000 667
770 9] N7 I.O! 119 1.17 8 191 1.]J 110 LII fM 1.72 110! 7 x
- 1 1117 7 70
1000 7<I 1.1{ 7D1 1 21 132 I.l1 900 1 ,90 f1{ 1.{1 111 1,71 1058
7,07 11)2
tf 123 3,1!
ill 149 ,6i S1F .82 317 I.Of 611 1.71 680 1,51 722 1.7{ 76s 1.98 136 }.10
3700 491 e2 371 1 01 117 L12 Nl 1.61 772 Lf7 731 - f0! 711
SUW 130 630.915 flow 371 1.07 591 t.]9 6!1 1.39 7 2.08 7124 212 12 237 _ m 2U _!70 7.26 ii3
SUAISU {11 583 13{ {N I .FA .617 1,90 73g 2.26 7P1 2221 797 .67 /J1 2,10 1 4T 3i /!4 77! q0 I,p
7000 {21 1.70 Ad 199 771 2.26 771 2.63 820 3,01 µ3 5.77 /O2 7 71 !f7 f b 101• 1.
Si AREA N
INDICATES ACE TYPE INDICI iS FM Z AT WNICl1 U N I Or b1 ARE nATCO,
PRINTED BY P.D.-V 8 SIJA-SUW-!,6,'-i-7-868-F, S.
Insfallefion Check Lkf
for
SUA, SUW Unifs
•
Dace -
Customer's Name - - -
Address
- Model.__ Unir Srrial No. Compressor Serial No. -
PRE START-UP INSPECTION
All crating clear of unit -
2. Equipment located to provide adequate service recess
3. Proper electrical supply voltage available
4. Adequate fused disconnect switch installed -
5. Proper size fuse in disconnect switch
6. Proper size wiring to unit
7. All wiring inside unit connected tightly to terminals
8. Thermostat provided and wired in properly
9. All wiring checked for proper hook-up
10. Fan drives properly aligned and ti3ht
11. Fan belts properly adjusted
12. Fans turn over freely by hand
® 13. Conde-,,s-r and evapo*ator fan setscrews tightened on flat of shaft
14. All lxar;ngs lubricated where applicable
15. Unit flee from refrigerant leaks
16. Water regulator valve installed correctly
START-UP CHECKS
i. Units started and stopped 3 times to check starting capabilities
2. Fans running correct rotation `
3. Evaporator Fan RPM adjusted to provide required airflow
4 Condenser Fan RPM (SUA Units) adjusted to provide required airflow - -
5. Water regulator valve (SUW Units) set to control at 200.230 psig discharge pressure prig
6. Motor current
Compressoe Amps
C(:ndcnser fan ----------------Amps
Evapon: nor fan - Amps
7. Voltage at unit, unit running, across each phase Volts
R. Supply air temperature Deg, F
- - " - - - Deg. F
9. Rcrurr, air temperature
10 Ambient temperature at condenser coil - Deg. F
It. All capil%ry cubes tied down to prevent excessive vibration =
12. Unit free from rattles and vibration
13. Unit clean inside and outside
+4. Operation raplained to uwner -
FILE: LITERATURE TILE NO.
s s TRANE HEATING PRODUCTS EUMNA
THE i
COM
FURNACES Gimefii Cfteng4r
e Eletie
!nsfellation
INSTALLATION
Sine The Tran• eoe pany hot o poky of continuous product JULY, 1869
Improvement, it reserrea the r~ght to change speciCcoKOns and
dedgn without notice,
FURNACE- ELECTRIC
.a UPFLOW, DOWNFLOW
OR HORIZONTAL
MODELS
EUADA 03A -_EUAQA09tA_
EUADH 03A ELIADR-WA
Y. EUADH 05A EUADA 10A
EUADA 07A EUADA 12A
EUADH 07A
•
Two access doors are provided at
the front of the unit. The upper door
UNIT APPLICATIOPi to the furnace control and heating ele-
ment section is hinged and latched.
Trane Electric Furnaces are designed Turn the latch counterclockwise to open.
for installation in a confined space The lower access door to the fan and
with reduced clearances to combustible motor section, is held by two screws aL
materials. The Underwriters Laboratory the top of th_ door. Remove the screws
approval of the unit applies to the and lift the door up and away from the
furnace as a heating unit only. furnace.
All furnaces may be installed in an Figure 4 iilustrates the unit with
upflow, downflow or a horizontal po- the top door ocen,
sition. When installed as a downflow
unit, a non-combustible base must be
used unless the flooring is concrete. L<:cation arid CLearances
If used in the horizontal position,
place the unit so the control acce-.s When selectin6 unit location, con-
door at the front of the unit swings sider the foll,3wing factors:
up and the air discharge is to the
right when looking at the front of the 1. Accessibility: A minin.,jm of 24 inches
unit. should be provided at the front of
the unit for service a,!ccss.
Unit Dimensions and Access
2. Minireum Clearance: Under no circum-
Figures 1, 2 and 3, and Table 1 pro- stances should combustible material
vide dimensions of the unit a,ld the be located within the clearances
base used for -he downflow units. specified in Tat•le 2.
1
,J
KNOCKOUT IOTH S
CONTROL SECTION SIDES FOR LOW
ACCESS DOOR VOLTAGE WIRING
LATCH
AC WER SECTION KNOCKOUT 10TH
'
ACCESS DOOR SCREWS SIDES POWER FOR MAfN
SUPPLY
fr D
j fl I
IL-_ -
FIGURE 1 Model EUA Electric Furnace Dimensions
TABLE 1 Model. EUA Electric Furnace and NO-1-Combustible Base Dimensions •
U;iIT A B C D
E F G H J K
EUADA03A L M
EUADH03A
ZUADA05A
EUADH05A
EUAD07A 42 20 20 23
EU
ADHFi 07A 4 1-3/16 2-2/4 20-1/8 20-1!4 2-7/83-7/ 1-1/4
ETJADA09A
LUATJH09A
EUADA10A
EUAUA12A 43 22 22 20-1/4 5..1/8 2-3/16 2.
9/16 22-1/8 22-1/4 3_3/4 5 2-1/4
TABLE 2 --!Minimum Clearances, All Applications
UNIT CLEARANCES PLENLM AND Dt;CTKORK CLEARANCES
E7JADH-03A905A,G7A,03A EUADA-10A
From Sides and Back 0 Front of Plenuru E1)ADA-O3A 05A 07A
7 09A EUADA-12A
Front, Back of Plenum -1/
3" Sides of Plenum 2-7/ 6 3-3/4"
Top or End of Plenum 1'3/16" 2-3/16
Discharge End
oft Ductwork Within 1«
6 Feet of Unit l~
NOTE: Plenum clearance dimensions are for supply
Plenum clearance dimensions given are vith frontuofxsupplylair plenum at front
of unit. This applies to
upflox, dovnflov and horizontal applications.
2
i
A,
FRONT OF
C
FURNACE `
111/4
FLANGES
TYPIr kL
SUPPLY AIR
DUCT BY
INSTALLER
NON-COMBUSTIBLE
BASE
i
IBS
I 1
FIGLr?E 2 Installation Sketch, Non-
Combustible BaSc for
Dovnflov Applicatio:,
x
Fi I
l
I i 'I4,/,
H I
I i
I t-
i1
l.I_- FRONT
l I 4.M- r 3/< •
FIGLIRE :ion-Combustible Base
Base Part No.
EUADII-0!A, 05A, 0'(A, 09A - 174-0361-1
- Iey$ EUADA-O-A, 05A, 07A9 09A 171k-0361-1
; EUE.-10A, 12s. - 174-0351-2
sue.