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ONIOFF SWITCH
COMPRESSOR CONTACTORS
ENTUALPY
SAT.
OEMS
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CONDENSER C OILS
THERMISTOR LOCATIONS
(READ REND)
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FREEZESTAT
LOCATIONS
FVAPORATOR RETU_ BEND ENO
X_SPEED
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THERMISTOR LOCATION
PLUG LOCATION REFERENCE
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PL3 HEAT SECTION PARTITION
(HEAT CONTROLS)
FAN SECTION
PL4
INDOOR EAN MOTOR}
CONDENSERSECTION
PL5 (OEM1,
B,
B)
PL6 CONDENSER_CTiON
{OFM4,
5,
PLY ECONOMIZER SECTION
(ECONOMIZER MO[ORI
POWEREXHAUST SECTION
PL9 (POWER EXNAUS] MOTORS)
PLIO CONDENSERSECTION
__
(OFM1)
PLII CONDENSERSECTION
(OFMR)
PL12 CONDENSER SECTION
(OFM3)
P[IR CONDENSER SECTION
(OFM4)
PL14 CONDENSER SECTION
(OFW5)
PL15 CONDENSERSEEIlON
(OFM6)
FAN SECTION
PLI6 (FAN STATUS ACCESSORY)
PLIY ECONOWIZER SECTION
(R-POSITION HAMPER)
OEM2 (24_80NLYI
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SMOKE CONTROL :
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CONVE_d'ENCE
TERM MAL BLOCK
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TERMINAL
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ERM MAL _MARKED
°
SPLICE
FACIORY
WIRING
FIELD
WIRING
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NOT TO REPRESENT
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LPS A
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SY_T'_'_'_
TRAN_FO_
CCHBI
GAS HEATN_
EVAP CIRCUIT
CONFIGURATION
AU AX
CIRCUIT A
FU
FUSE
AUX]LLARY CONTACT
GNB
GROUND
NOTES:
AL
AMBIENT LIMIJ
GV
GAS VALVE
I,
FACTORY WIRING [S IN ACCORDANCE WITH THE NATIONAL
_B
CIRCUIT B
HPS
NIGH PRESSURE SWITCH
ELECTRICAL CODES ANY FIELD MODIFICATIONS
OR
C
CIRCUIT C
I
IGNITOR
ADDiT!ONS MUST BE IN COMPLIANCE WITH ALL APPLICABLE
_r
COMPRESSOR,CONTACTOR
IAO
INDOOR AIR QUALITY
CODES
CAP
CAPACITOR
IOM
INDUCED BRAF[ MOTOR
2
USE 7S°C MiN WIRE FOR FIELD POWERSUPPLY, USE COPPER
CD
CIRCUIT BREAKER
IDR
INDUCED DRAFT RELAY
WIRES FOR ALL UNITS
CCH
CRANNCASE HEATER
IEC
INDOOR FAN CONTACTOR
B
ALL CIRCUIT
BREAKERS "MUST TRi ° AMPS" ARE EQUAL TO
CLO
COMPRESSOR LOCKOUT
IECB
INDOOR FAN CIRCUIT
BREAKER
OR LESS THAN IS6% RLA
COMP
COMPRESSOR
INN
INDOOR FAN MOTOR
4
COMPRESSOR AND FAN MOTORS ARE THERMALLY PROTECTED--
CR
CONTROL RELAY
]RN
INDOOR RELATIVE HUMIDITY
THREE PHASE NO[ORS PROTECTEDAGAINST PRIMARY SINGLE
DU
DUMMY [ERMiNAL
ICE
INIEGRATEB GAS CONTROLLER
PHASE CONDITIONS
ECB
ECONOMIZER CONTROL BOARD
LPS
LOW PRESSURE SWITCH
5
THE CLO LOCKS OUT THE COMPRESSOR TO PREVENT SHORT
ECS
FAN CYCLING SWITCH
LS
LIMIJ
SWlTCN
CYCL]NG ON COMPRESSOR OVERLOAD AND SAFETY DEVICES;
RPT
FREEZE PROTECTION THERMOSTAT ORE
OUTDOORFAN CONTACTOR
BEFORE REPLACING ELO, CHECK THESE DEVICES
ES
iLAME SENSOR
• SUPPLY' _MONE
_AN ,SIATUS_ OUT ET TRANSFORMER
CCHAI
LPS A [VAP CIRCUIT CONFIGURATION
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ELECTRIC/NO HEAT ONLY
_F(T_I_ _ "_'?'s_T_
OFM
OUTDOORFAN MOTOR
TMERMOSTAT/IQC MARKINGS
ORN
OUTDOORRELATIVE HUMiDiTY
BM
BLOWER MOTOR
Wl
_sf
STAGE OE HEATING
PEE
POWEREXHAUST CONIAE[OR
C
COMMON
W2
Bnd STAGE OF HEATING
PEN
POWEREXHAUST MOTOR
CM
INDUCER MOEOR
X
ALARM OUTPUT
PL
PLUG
CS
CENTRIFUGAL SWITCH
Y1
]s_
STAGE OF COOLING
PLP
PHASE LOSS PROTECTION
G
FAN
Y2
2ridSTAGE OF CO0{]NG
RAT
RUURN
AIR SENSOR
iFO
INDOOR FAN ON
RS
ROLLOUT SWITCH
L1
LINE 1
SAT
SUPPLY AIR TEMPERATURE
R
THERWOSTATPOWER
SS
SPEED SENSOR ([DM)
R]
POWER SUPPLY
TB
TERM[NA_ BLOCR
SS
SPEED SENSOR
TBR
TIME DELAY RELAY
W
THERMOSTAT HEAT
TRAN
TRANSEORMER
50TG505337 Rev. 2,0
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