scs
DUALSTAGE
MODEL?7O2
CENTRALAIR CONDITIONER
FORRECREATIONALVEHICLES
EVAPORATORCOIL. 17-112"
X 31'X 2.1/8"WITH 1/2" DIAMETERTUBES.
L A R G E F A C E A R E A A N D W I D E F I N S P A C I N G M I N I M I Z EA I R F L O W
RESTRICTION.
C o N D E N S E RC O | L -1 8 - X 3 2 ' , X 2 - 5 1 8 " . 3 / 8 "
D I A M E T E RT U B E SA R E ' R I F L E D "I N T E R .
N A L L YT O I N C R E A S ER E F R I G E R A N T
TURBULENCEAND RESULTINGHEAT
T R A N S F E RF. I N SA R E " L O U V E R E D ' T O
F U R T H E RE N H A N C EP E R F O R M A N C E .
EVAPORATOR
BLOWER.12.518ALUMINUMWHEEL
DIAMETER
W I T H A 1 / 3 H . P . , 1 0 7 5 R . P . M .M O T O R .P R O D U C E SE X C E P .
HAVING HIGH
TIONALAIRVOLUMEIN DUCTEDAPPLICATIONS
STATICRESTRICTIONS.
W I R I N G B O X . A L L C A P A C I T O R SA N D S T A R T
ASSISTSARE EASILYACCESSIBLEFOR SERVICE.
R O T A R Y C O M P R E S S O R S. P R O V I D E
S M O O T HT, R O U B L EF R E EP E R F O R M A N C E .
C O N D E N S E RF A N . 1 6 DIAMETERBLADEWITH A
1 / 4 H . P . ,1 6 2 5R . P . M .
M O T O R .P R O V I D E S
E F F I C I E N TC O N D E N S E R
C O O L I N GW I T H M I N I M U M
POWER
CONSUMPTION.
VALVESTHERMOSTATIC
EXPANSION
M E T E R R E F R I G E R A N TF L O W I N R E .
S P O N S E T O C H A N G I N GC O O L I N G
LOADS.CONSTANTLYMAINTAINOPTIMUMCOILCAPACITYWHILEPROTECT.
I N GT H EC O M P R E S S O RASG A I N S T
LIQ.
U I D S L U G G I N G .F E A T U R E" R A P I D
BLEED'PORTSTO OUICKLYEQUALIZE
H I G HA N D L O W P R E S .
COMPRESSOR
SURESAFTERSHUTDOWN.
C A B I N E T . 2 0 G A U G EG A L .
VANIZEDSTEELTHROUGHOUT.
PRINTEDWIRINGBOARD. ALL RELAYSAND
I N T E R C O N N E C T I NCGI R C U I T R YA R E
INTEGRATEDIN ONE EASILYREPLACED
A S S E M B L YN
. O M A Z EO F W I R E SO R
D I A G R A M SA R E N E C E S .
COMPLICATED
SARY.
A B S D R A I NP A N .W I L LN O T R U S TO R C O R R O D E .
t Model2702eliminatesthe
RVAC'spatented
problems
noise,appearance,
andwaterdrain
associatedwith
rootmounted
airconditioning
units.lt is designedto mounlbelowfloorlevelwiththe units'condenser
coiltacinglhe outerskinotthevehicle.Theunitis equippedwith
twocompressors
whichareconnectedto dualcircuitedheatexchangers.
Thecompressors
are powersdby separateI 15 Volt,20 Amp
electricalinguts.
Whenussdwiththe oplionalthermostatPartNo.63002,the unitwilloperatein dualcompressor
modeif bothinputsare powered.When
th€vehicles'interiorcools
to within2' of thedesiredthermostat
setling,onecompressor
willswitchottandthelanswilldropto lowspeed.
The unitwillautomatically
switchbackto dualcompressor
andhighfan modeif a risein interiortemperature
is detected.
AVAIL A B LEI N T W O C O N F IG U R A T IO N S:
PART NUMBER 12001- Designedfor open bay
applicationsin whichthe unit is mountedbehindthe
outer skin of the vehicleand the area surrounding
the unit is not enclosed.Outdoor air is drawn in
throughthe top, bottom,and sidesof the unitto cool
the condensercoil.Hotair is dischargedout theside
of the vehicle.
PART NUMBER 12002-Designedfor enclosed
bay applications.
Outdoorair is drawn in through
the outer skin of the vehicle and into the condenser.Hot air is exhaustedout the bottomof the
unit throughan openingin the bay floor.
J
v
-c::=
----)-=--:
c:=
BY:
MA N U FACTURED
SPECIFICCLIMATESYSTEMS,INC.
12OOW E S T R ISI NG ERRO AD
-
c:::=-l
n
a
t
t U.S. Patent5,307,645
rll
v. l.
FORTWORTH,TX 76134
P H ON E817- 293- 5313
FAX 817-293-8014
sGs
RV CENTRAL AIR CONDITIONER
SERVICEMANUAL
TABLEOF CONTENTS
Test
CoolingPerformance
2-4
5
6-10
TroubleShooting
SystemWiring
ServiceParts
UNITSPECIFICATIONS
ModelNo.
Nominalcapacity- BTUH
type
Compressor
oil
Compressor
R-22 charge weight
blowermotor
Evaporator
blowerwheel
Evaporator
blowerspeeds
Evaporator
Condenserfan motor
Condenserfan
fan speeds
Condenser
input
Electrical
size(Min.)
Generator
amps
Nameplate
Circuit#1
Circuit#2
Inputwiring(coppeQ
0-25'
25-40',
(2 reqd.)
Circuitprotection
Fuseor HACRBreaker
Unitweight
Shippingweight
2702
27,000
ATMOSM60or equivalent
36 Oz. eachcompressor
1/3 HP, 1050/875RPM, PSC TYPe
Dia.aluminum
12-518"
2
RPM, PSC Type
114HP, 162511250
16" Dia.,4 blade
115 VottsAC, 60 Hz, 1 Phase
5.0 KW
16.4
14.6
#12AWG
#10AWG
20 Amp
192Lbs.
221 Lbs.
scs
RV CENTRALAIR CONDITIONER
SEFIVICEMANUAL
COOLINGPERFORMANCECHECK
Beforeperformingan extensiveperformance
diagnosis,be suresomeoftenoverlookedbasicsare checked:
. Checkthe returnair filter
. Checklor blockagein returnair ductor grille
. Checkfor leakagein supplyductsystem
. Checktor openwindowsand vents
Next,checkthe voltageat the P.C.BoardCircuit#1 andCircuit#2 inpulconnectors.
lf the voltageat eithercircuitis less
than105whilethecompressors
aretryingto stan,it is likelythatanycoolingproblemsarecausedbyan inadequate
power
source.Checkfor shorelinesthat areloo smallin gaugeor too longor otherpowersupplyproblems,
75
lf theinputpoweris adequate,
theunitinletandoutlettemperaturesshouldbechecked
andcompared
withtheCooling
PerformanceGraph.Keepin mindthat the graphwas developed
basedon laboratoryconditionsof 95ooutdoorair with SO%
relative
humidity.
changesintheseconditions
cangreailyaffect
the pedormance
obtained.
70
t!
o
I
G.
65
o60
E
Tochecktemperatures,
starttheunitandletit runfora minimum
of fifteenminutesin highblowermode.Checkthe returnair
temperature
atthereturn
airgrille.
Checkthe
discharge
airatthe
register
nearest
theunit.Thistemperature
shouldroughly
agree
withtemperature
shownon the graph.
Anotherindicator
of properperformance
iscurrent
consumption
inAmps.Aftertheunithasbeenrunning
fora minimum
offifteen
minutesin highblowermode,clampan ammeteraroundthe
Circuit#1 blacksupplyleadandrecordtheAmpreading.
Next,
checkthe inputvoltsat the Circuit#1 connector.
Correctthe
measured
valuesto standardAmpsusingthe formulashown
and comparethe resultto the Circuit#1 Amp Drawgraph.
Repeatthe aboveprocedure
for circuit#2.
.LRR
vv'
o
9,
o50
45
60
65
85
90
15
@
o.
414
=
o
F13
o=
L,n'o:
P{1{ )
c
t\J
U'
212
o
()
AMP CO RRE CT I ON
F OR M U L A :
70 75 80
RETURN
A I R- ' F
rrl
,{
II
F
STD. AMPS =
MEASUREDAMPS X 115
MEASURED VOLTS
As inthetemperature
test,humidity
canaffectunitperformance
and resultingAmp draw.However,Amp valuessignificantly
aboveorbelowthose
showninthegraphcanindicate
aninternal
problem.
SCS
SPECIFICCLIMATESYSTEMS,INC.
12OOWEST RIS]NGERROAD
FORT WORTH,TX 76134
817/293-5313
ru 11
CE
E
()
10
80
85
90
100
95
- "F
OUTDOOR
TEMPERATURE
MODEL 2702
COOLINGPERFORMANCE
J u n e1 6 ,1 9 9 4
PAGE
1
sGs
RV CENTRAL AIR CONDITIONER
SERVICEMANUAL
CHECKINGSYSTEMOPERATION
Startingwiththe systemswitchin lhe OFFposition,the displaywill be blankand no partof eilherthecoolingor heating
systemswill be operating.
Thecoolingsystemfanoperatescontinuously.
Movethesystemswitchto FAN.Thedisplayindicatesroomtemperature.
No othercomponentsor syslemsare operating.
AdjusttheCOOLSETsetpoint3to 5 degrees
Movethesystemswitchto COOL,thedisplaywillindicateroomtemperature.
Movethe
aboveroomtemperatureand relurnlo aclual. Movethefanswitchto LOWON,thefanoperatesconlinuously.
fanswitchto HIGHON,the fanwill remainon. Movethetanswitchto LOWAUTO,thefanwillstop. Movethefan switch
and relurnto
to HIGHAUTO,the tan will remainoff. Adjustthe COOLSETset point5 degreesbelowroomtemperature
actual(lf the thermostathas beenpoweredfor morethan3 minutes,firststagecoolingandthe coolingfan willcomeon
approximately
1 minutelater).
ll the thermostathas nol been poweredlor morethan 3 minutes,firststagecoolingand the coolingfan will comeon
30 secondsafterfirst
an)Mherefrom30 secondsto 3 minuteslater. (Secondstagecoolingwillcomeon approximately
stage.)Withthe fan switchin HIGHAUTO,thefan willoperateat highspeedandcyclewithstage1 compressor.Move
thefan switchto LOWAUTO,the fan willoperateat lowspeedandcyclewithstage1 compressor.Oncebothstagesof
aboveroomtemperature
coolingand bothfan speedshavebeenverified,adjustCOOLSETset pointto a temperature
andreturnto aclual. After15to 30 seconds,bothfirststagecoolingandthe coolingfanwillcycleoff. Firststagecooling
an not be restartedunlila 310 3 1/2 minutetimedelavhasoccurred.
TROUBLESHOOTINGPROCEDUBE
and coolingset
lf an electricalproblemis suspected,notethe thermostatselectorswitchpositions,actualtemperature,
(indoor)
pointtemperature.
appropriate
speeds
forthe
evaporator
refer
logic
Page
5
to
determine
the
Then
to the
tableon
Alsodeterminewhich
compresso(s)should
settingsobserved.
blowerandlhe condenser(outdoor)tanforthethermostat
control
box.
be in operation.Note:Compressor#1 is nearestthe electrical
lf the motorsor compressorsdo not operateproperly,consultthe ElectricalTroubleShootingChartto determinethe
probablecause.
J u n e1 6 ,1 9 9 4
MODEL 2702
TROUBLESHOOTING
SCS
INC.
CLIMATE
SYSTEMS,
SPECIFIC
ROAD
12OO
WESTRISINGER
FORTWORTH,TX 76134
817/293-5313
scs
RV CENTRALAIR CONDITIONER
SERVICEMANUAL
THERMOSTAT
P.C. BOARD
C I R C U I T# 1
115 V A C IN P U T
I
I
o
llM
-;
I L___i
|
|tr.21
HE
I
PRESSTO VIEW
ACTUAL
TEMP.
llLow
i >voLrAGE
z ) PrNS,
E VAPHI PI NS
AP LO PI NS
COOL SET POINT,
HEAT SET POINT
dl_4_/h
Flr-r.grt=l
r--r_
|
| ---'--
| SnrmnU-6
IN\
|
=
al
SELECTOR
SWITCHES
rll
l,
5t
tl
I ,---,--tr 4J.
C O N DH I P I N S
C ONDLO PI NS
l . , . . . w l
CTTtJ()
o
COMPONENTTESTPROCEDUFES
llt\-.6
ctRcutT#2
115VACINPUT
Caution: Be sure all electrical power is disconnected belore proceeding.
COMPRESSOR:
Removethe wirestromcompressor
terminals"C",'S", and'R'. Usingan Ohmmeter,checkfor continuitybetweeneach
ofthethreeterminals.
Lackotcontinuity
betweenanyoftheterminalsis anindication
ofanopencircuitinthemotorwindings
andlhe compressormustbe replaced.
To determinewhetherthe windingsare shorled,scrapethe paintotf the compressorhousingand checktor continuity
betweeneach of the threeterminalsand the metalhousing.lf continuityexistsbetweenany of the terminalsand lhe
housing,the windingsare shortedandthe compressor
mustbe replaced.
C OM PB ESSOR SIABT ASS'ST
Disconnect
betweenitsh,voterminals.ll nocontinuityexists,lhestart
lhe leadwiresandcheckthestartassistforcontinuity
assistis defectiveand mustbe replaced.
COM PRESSOR OVEBLOAD PBOTECTOR
The overloadprotectorwill interupt powerto the compressorif over-heating
occurs.To checkthe overloadprotector,
disconnectit andcheckfor continuitybelweenitstwo leads.lf no continuityexists,the overloadis defectiveand mustbe
replaced.
EVAPORATOR AND CONDENSERMOTORS
Disconnect
the threewireplugfromthe P.C.Boardandthe brownleadsfromthecapacitor.
Checkforcontinuitybetween
eachofthe five leads.Lackof continuitybetweenanypairofleadsis an indicationof an opencircuitin the motorwindings
and the motormustbe reolaced.
To determinewhetherlhe windingsare shorted,checktor continuitybetweeneachot the tive leadsand an un-painted
surfaceof the motorhousing.lf continuilyexistsbetweenanyof the leadsandthe housing,lhe windingsareshortedand
the motormustbe replaced.
J u n e1 6 , 1 9 9 4
SCS
SPECIFICCLIMATESYSTEMS,INC.
12OOWEST RISINGERROAD
FORT WORTH,TX 76134
817/293-5313
MODEL2702
TROUBLESHOOTING
PAGE
3
-12VDCAT
LOW VOLTAGE
PIN #4?
:+F
tr
o
a
a
+12VDC
AT
LOWVOLTAGE
PIN#5?
o
C)
+12VOCAT
THEHMO.
STAT'Yl'?
YES
NO
o
z
NO
tr
U)
UJ
o
C)
o
z
NO
ks
cc r-
11sVACAT P.C.
BOARDCIRCUIT
#1 INPUT?
kq
EJ
o (t!r
o.
11sVACAT P.C.
BOAHDCIBCUIT
#1 INPUT?
REPAIRTHERMOSTAT
GROUNOWIRE
REPAIRBLACKWIRE
BETWEENLOW VOLTAGE
P I N# 3 A N D T H E R M . ' G H '
+12VDCAT
THERMOSTAT
'R'?
-12VDCAT
LOW VOLTAGE
PIN #4?
+12VDCAT
THERMO.
STAT'Gt'?
11sVACOUTPUT
AT
P.C.BOARD
.EVAP
LO'PINS?
@
REPLACETHERMOSTAT
CHECK2 AMP FUSE AND WIRING
SEE COMPONENT
TEST PROCEDURES
(cHECK COMP.#2)
f
I
@
nepruneLuewrne l
eerweeNTHERMo-|
REPLACETHERMOSTAT
CHECK2 AMP FUSE AND WIRING
SEE COMPONENT
TEST PROCEDUBES
(EVAP.MOTOR)
GA
OI
+12VDCAT
THERMO.
STAT'Y2'?
7z
Uff
z
+12VDCAT
THEBMOSTAT
'R'?
tr
TU
2=
uro
OJ
t 15VACAT P.C.
BOAROCIBCUIT
#1 INPUT?
PAGE
4
SEE COMPONENT
TEST PROCEOURES
(EVAP. MOTOR)
CHECK2 AMP FUSE AND
SEE COMPONENT
TEST PROCEDURES
(coND. MOTOR)
REPLACEP.C. BOARD
REPAIF THEBMOSTAT
GROUNDWIRE
REPAIRBLUEWIRE
BETWEENTHERMO.
S T A T ' B ' A N D P I N# 4
REPLACETHERMOSTAT
+12VDCAT
THERMOSTAT
'R'?
.12VDCAT
LOW VOLTAGE
PIN #4?
+|2VDCAT
THERMOSTAT'Y1'?
11sVACOUTPUT
AT
P.C.BOARD
.COND
HI' PINS?
.12VDC AT
THEBMOSTAT
'B'?
REPAIRINPUTWIRING
+1ZVDC
AT
LOWVOLTAGE
PIN#5?
CHECK2 AMP FUSEAND WI
REPAIRBLUEWIRE
BETWEENTHERMO.
S T A T ' B ' A N D P I N# 4
HEPAIR
REDWIRE
BETWEENLOWVOLTAGE
P I N# 1A N DT H E R M . ' G L '
REPAIBORANGEWIRE
BETWEENLOW VOLTAGE
P I N# 6 A N D T H E R M . ' Y 2 '
o
REPAIRBLUEWIRE
BETWEENTHERMO.
S T A T ' B ' A N D P I N# 4
.12VDCAT
THERMOSTAT
'B'?
.12VDCAT
LOW VOLTAGE
PIN #4?
+12VDC AT
LOW VOLTAGE
PIN #6?
trl
A-
o
z
NO
11sVACOUTPUT
AT
BOARD
. E VP.C.
AP
HI'PINS?
HEPAIRINPUTWIRING
(r
C)'lt
YES
.I1sVAC
OUTPUT
AT
P.C.BOARD
.COND
LO'PINS?
-12VDC
AT
THERMOSTAT
'B'?
REPAIRYELLOW WIRE
BETWEEN LOW VOLTAGE
P I Nf 5 A N D T H E R M . ' Y 1 '
SEECOMPONENT
TESTPROCEDUBES
(coND.MOTOR)
HEPLACEP.C. BOARD
REPAIB THERMOSTAT
GROUNDWIRE
+12VDCAT
THERMOSTAT
'R'?
)
BETWEENTHERMO.
FIEPLACE
P.C, BOARD
FEPAIBTHERMOSTAT
GBOUNDWIRE
+12VDCAT
THERMOSTAT
'R'?
+12VDCAT
THERMO.
STAT'GH'?
+12VDCAT
LOW VOLTAGE
P I N# 1 ?
9=
6a
NO
REPAIROBANGE WIBE
.BETWEEN LOW VOLTAGE
PIN #6 AND THERM.'Y2'
REPAIFINPUTWIRING
(r
oc0
z
NO
REPAIRBLUEWIRE
REPLACEP.C. BOARD
O
cc
(L'uJ
s3
d9
YES
.12VDCAT
LOW VOLTAGE
PIN #4?
+12VDCAT
LOW VOLTAGE
PIN #3?
O-
o(n
z
11sVACOUTPUT YES
AT
P.C.BOAHD
.COMP
NO
2'PINS?
REPAIRINPUTWIRING
E.
s=
69
NO
I
YES
..I2VDC
AT
YES
THERMOSTAT
'B'?
NO
NO
+12VDCAT
THEHMO.
STAT'Y2'?
YES
YES
YES
(r
1'tsVAC
AT P.C.
BOARDCIHCUIT
#2INPUT?
f
REPAIRTHERMOSTAT
GROUNDWIRE
+12VDCAT
THERMOSTAT
'R'?
.12VDCAT
LOW VOLTAGE
PIN #4?
+12VDC
AT
LOWVOLTAGE
PIN#6?
o
a
/
NO
REPAIRYELLOW WIRE
.BETWEENLOW VOLTAGE
PIN #5 AND THERM,'Y1'
YES
SEE COMPONENT
TEST PROCEDURES
(CHECKCOMP.#1)
REPLACE
P.C. BOARD
YES
REPAIRINPUTWIRING
OJ
:tF
(L
1lsVACOUTPUT YES
AT
P,C.
BOARD
.CO
MP
1 ' P I N S ? NO
.12VDC
AT
THERMOSTAT
'B'?
NO
(r
11sVAC
ATP.C.
BOARDCIRCUIT
#1INPUT?
NO
YES
l'U
(L
YES
REPAIR
BLUEWIBE
BETWEEN
THERMG
STAT'B'ANDPINf4
CHECK2 AMP FUSE AND
MODEL 27A2 ELECTRICAL TROUBLE SHOOTING CHART
WIRING DIAGRAM
COMPRESSOR
1
12VDC
C IR C U IT#1 P OW E R
1 20V A C ,60 H Z IN P U T
OVERLOAD
PROTECTOR
oL1
.l
. -l F
t --r---
l-
63002
THERMOSTAT
- 'WHT- -
-BLK- -
I r
:f
+-
I
GL (BLWRLO)
GH (BLWRHt)
INVERTEB
r-r
ll lr.rlffi
ffil'-'lo
r\vn\-/l
B (-12VDC)
R (+12VDC)
I
I
f
w (HEATTNG)
[---il RL1 I Fl.fi
lqLs i-----J =RL3|
.l d [-
'atl
Y 1 ( C O M P1 ) . - , ,
Y2 (COMP2)
I
CAPACITOR
Effi
COMPRESSOR
2
K
OVERLOAD
PROTECTOR
oL2
=---
IRL6 I
I _
EIB
t--
OUTDOOR
FAN
l"*l
A
CAPACITOR
lHl\ f
|
YEL
,
cl )
]
\-zO
I L .9g11-L-'wHT-FACTORYWIRING
r -l lF - E - - E -
FIELDWIRING
CIRCUIT#2 POWER 1 2 0 V A C 120VAC,60 HZ INPUT 1 2 V D C
+
3
E
120VACrrrrr
1 2V D C
LOGICTABLE
SCHEMATIC
2 AMP
FUSE
CAPACITOR
o
9
INDOORELWR
INVERTERINPUT
120 VAC,60 HZ
(SEE NOTE)
:<F
d
=RL4
THERMOSTAT
READING
MORE THAN 2"
ABOVE SET POINT
THERMOSTATSEL- FAN AUTO
ECTOR SWITCHES
HI
LO
:
GL & PIN #.I
0
PIN #2
0
:EE
ls8
58p
>Z
5
OUTDOOBFAN
j-
GH & PIN#3 + l2V
EHg
t:Ful
B & P I N # 4 .12V
FAN ON
HI
+12V 0
0
0
0
+12Y
-'t2v
.12V
LO
ATOR BELOW
SET PO]NT
2'OR LESS
ABOVE SET PO]NT
FAN AUTO
HI
+12Y 0
FAN ON
FAN AUTO
FAN ON
LO
HI
LO
HI
LO
HI
LO
+12Y
0
+12\
0
0
0
+12V
0
0
0
0
0
0
0
0
0
0
+12v
0
+ 12 !
0
0
0
112V
0
-12V - 1 2 V -12V -12V .'l2v -'t2v -'l2v -12V -12V
g ) J F
002
> >;;
ffi=E
702
FJO
COMP2
R
CONSULT RVAC MANUALNO.
95005 FOR CONNECTIONOF
OPTIONALOTR SYSTEM
dt
ctRcun 12
120VAC,60HZ
0
0
LO
LO
0
0
0
LO
LO
LO
LO
LO
LO
LO
OFF OFF
LO
LO
LO
LO
LO
LO
LO
LO
OFF OFF OFF
OFF
COMP 1
ON
ON
ON
ON
ON
ON
ON
ON
OFF OFF OFF
OFF
ai
COMP2
OFF OFF OFF
OFF OFF OFF OFF OFF OFF OFF OFF
OFF
oo
EVAPBLWF H I
=
=
oo
CONO FAN
HI
LO
HI
LO
LO
LO
COMP1
ON
ON
ON
ON
ON
ON
ON
LU U'
(r (E
uJ rrJ
YF
0
0
0
COND FAN
=E
cro
HY
:d
ctBcutT rl
120 VAC,60 HZ
0
Y2 & PtN#6 + 1 2 V +12Y +12Y + 1 2 V 0
EVAPBLWF LO
o
rO
in<
= lr,
-o
x$
c oLl
J't
OTRCONNECTOR
(sEENorE)
NOTE:
0
Yl & PIN#5 +12Y +12V t12V +12Y +12Y + 1 2 V+ 1 2 V + 1 2 V 0
LO
HI
LO
OFF OFF
LO
LO
LO
LO
OFF OFF OFF
OFF
ON
ON
OFF OFF OFF
OFF
OFF OFF OFF OFF OFF OFF OFF OFF
OFF
LO
LO
LO
LO
(L (L
ECC
60
]OMP 2
ON
OFF
J u n e1 6 , 1 9 9 4
SPECIFIC
CLIMATE
SYSTEMS,
INC.
WESTRISINGER
12OO
ROAD
FORTWORTH,TX 76134
SYSTEM WIRING
PAGE T
c
scs
RV CENTRAL AIR CONDITIONER
SEHVICEMANUAL
CONTROLASSEMBLY
S EE PA GE7
BASE ASSEMBLYWITH COILS
SE E PA G E8
(1)
1 . 071-00350 covER,(LouvERED)
(1)
071-00359 covER,(NoN-LOUVERED)
2. 071-00353 PANEL,
LEFTS|DE(LOUVERED) (1)
(1)
071-00360 PANEL,LEFTStDE,(NON-LOUVERED)
(1)
3. 071-003s2 P A NEL ,C OR N E R ,L R
P A N E L,C OR N E R R
4. 071-00351
, R
5. 071-00354
PANEL,
SIDE,(LOUVERED)
RTGHT
(1)
(1)
(1)
PANEL,
RIGHTStDE,(NON-LOUVERED)
071-00361
(1)
6. 071-00355
PANEL,
CORNER,
RF
(1)
7. 071-00403
covER, coNTRoL BOX
November22,1995
MODEL 2702
SERVICEPABTS
SCS
SPECIFICCLIMATESYSTEMS,INC.
WEST RISINGERROAD
12OO
FORTWORTH,TX 76134
817/293-5313
scs
RV CENTRALAIR CONDITIONER
SEFIVICEMANUAL
NOTES:
1. CHECKCONDENSERMOTORNAMEPLATE:
FASCOBRAND USE 5 MFD/370VAC
G.E. BRAND USE 7.5 MFDISTO
VAC
2. CHECK EVAPORATORMOTOR NAMEPLATE:
FASCOBRAND USE 5 MFD/370VAC
G.E. BRANDUSE 1OMFD/370VAC
1.
2
3.
4.
5.
6.
7.
B.
9.
10.
11.
12.
071-00356
03s-00013
070-00332
SEENOTE1
031-00009
NPN
SEENOTE2
070-00331
071-00358
058-00044
021-00038
025-00039
PANEL,CONTROLBOX
CAPACITOR,COMPRESSORRUN
C AP
ST R AP ,C O MP R E SS O R
CAPACITOR,CONDENSERMOTOR
STARTASSIST
BRACKET,STARTASSIST
CAPACITOR,EVAPORATORMOTOR
STRAP,MOTORCAP
PLATE,CONTROLMOUNTING
L A BE L ,GR O U N D
SUPPORT,CIRCUITBOARD
SCREW,#6 X 3/8 PPH
(1)
(2)
(2)
(1)
(2\
(2)
(1)
(2)
(1)
(2)
(6)
(4)
13.
14.
15.
16.
17.
.
.
.
.
.
.
.
(2)
GROUND
037-00039 COTJNECTOR,
e)
025-00077 scREW,#10-24
BOARD
CIRCUIT
035-00016 PRINTED
023-00023 NUT,KEPS
1
CIHCUIT
058-00042 LABEL,
2
058-00043 LABEL,CIRCUIT
036-00156 WIREASSY,THERMOSTAT
036-00155 WIREASSY,MAIN
, 4G A Y E LX 4
038-00028 W I R E 1
, 4G A O R GX 4
038-00029 W I R E 1
038-00026 W I R E 1, 4G A B L KX 4
038-00027 W I R E 1
, 4G A R E DX 4
- NOTSHOWN
SCS
SPECIFIC
CLIMATE
SYSTEMS,
INC.
12OO
WESTRISINGER
ROAD
FORTWORTH,TX 76134
817/293,5313
November22,1995
MODEL2702
CONTROLASSEMBLY
PAGE
7
scs
RV CENTRAL AIR CONDITIONER
SERVICEMANUAL
CONDENSERFAN ASSEMBLY
S E E P A GE1O
EVAPORATOR
BLOWEHASSEMBLY
SEEPAGE9
052-00057TUBE,SUCTION,
SIDEB
041-00063COIL,EVAPORATOR
052-00056TUBE,SUCTION,
SIDEA
052-00054TUBE,DISCHARGE,
SIDEA
052-00055TUBE,DISCHARGE,
SIDEB
037-00041 COVER,
TERMINAL
032-00082THERMAL
OVERLOAD
SWITCH
022-OOO78SPRING,
OVERLOAD
045-00288 GASKET,
TERMINAL
COVER
023-00056 NUT,TERMINAL
COVER
045-00287 GASKET,NUT
034-00051 VALVE,EXPANSION
060-00345 PAN,DRAIN
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
13. 022-00103
14. 021-00028
15. 025-00078
16. 094-00028
17.022-00101
18. 052-00052
'
052-00053
19. 023-00043
20. 026-00022
21.021-00061
22. 021-00039
23. 071-00349
24. 040-00043
CLAMP,
TUBE,1II2
SPACER
scREw, #10-24
COMPRESSOR
CLAMP,
TUBE,1/4
TUBE,LIQUlD,
SIDEA
TUBE,LIQUID,
SIDEB
NUT,NYLONINSERT
FENDER
WASHER,
SPACER
GROMMET,
COMPRESSOR
PAN,BASE
COIL,CONDENSER
- NOT SHOWN
(4
(6
(4
(2
A
6
6
4
November22,1995
MODEL 2702
BASE ASSEMBLYWITHCO'LS
scs
INC.
SPECIFIC
CLIMATE
SYSTEMS,
12OO
WESTRISINGER
ROAD
FORTWORTH,TX 76134
817/293-5313
scs
1.
2.
3.
4.
5.
RV CENTRAL AIR CONDITIONER
SEFVICEMANUAL
071-OO4O2
BLOWER
HOUSING
ASSEMBLY
062.00274WHEEL,BLOWER
062-00273RING,TNLET
021-OOO4O
BUSHING,
VIBRATION
MOUNT
021-00028SPACER
(1)
(1)
(1)
(3)
(3)
6.
7.
B.
9.
10.
070-00330
021-00041
026-00040
025-00078
083-00102
BLOWER
MOUNT,EVAPORATOR
RING,VIBRATION
MOUNT
WASHER,
FENDER
SCREW
MOTOR,EVAPORATOR
(1)
(3)
(3)
(1)
(1)
November22,1995
SCS
SPECIFICCLIMATESYSTEMS,INC.
12OOWEST RISINGERROAD
FORT WORTH,TX 76134
8171293-5313
MODEL2702
EVAPORATOR BLOWER ASSEMBLY
PAGE
I
scs
RV CENTRAL AIR CONDITIONER
SERVICEMANUAL
7rrt"'
* nore ArRFLow DtREcrtoN
ANDMoro+ BEzERI,ING
LEADI
PUSHER(CCW)
1. 071-00357P A NE L ,C O N D E N S ERF AN (PU SH ER )
071-00348PANEL,CONDENSERFAN (PULLER)
2. 062-00275 F A N,CO N D EN SE R
3. 062-00437MOTOR,CONDENSER
4. 021-00040B US HI N GV, IBR AT IONM O U N T
5. 021-00028SPACER
PULLER(CW)
FASCO
BRAND
FASCO
BRAND
G.E.
BRAND
G.E.
BRAND
(1)
(1)
(1)
(1)
(4)
(4)
6.
7.
8.
9.
10.
070-00322 MOUNT,
FAN
CONDENSER
021-00041 RING,VIBRATION
MOUNT
026-00040 WASHER,
FENDER
025-00078 scREW,#10-24
021-00042 BUMPER
(1)
(4)
(4)
(4)
(4)
November22,1995
MODEL 2702
CONDEruSEF
FANASSEMBLY
SCS
SPECIFICCLlMATESYSTEMS,INC.
12OO
WEST RISINGERROAD
FORT WORTH,TX 76134
817/293-5313