Page 37
VII−WIRING DIAGRAM, SEQUENCE OF OPERATION &TROUBLESHOOTING
A−Field Wiring, Thermostat Connections
FIGURE 53
GWYCR
SURELIGHT CONTROL
CONTROL
BOX
THERMOSTAT
IGNITION
CONTROL
GAS
VALVE
LIMIT
BLACK
BROWN
TO COMPRESSOR
CONTACTOR
FIELD INSTALLED CLASS II 24V VOLTAGE
FIELD INSTALLED LINE VOLTAGE
TYPICAL G26−3 through −6 MODELS
FIELD WIRING DIAGRAM
L1 N
FUSED DISCONNECT SWITCH
(FURNISHED BY INSTALLER)
TRANSFORMER
DOOR
INTERLOCK
SWITCH
COMBUSTION
AIR BLOWER
COMBUSTION
AIR PROVE
SWITCH
FIELD
MAKE−UP
BOX
GND
J69
WHITE
TO ACCESSORY IF USED.
(ELECTRONIC AIR CLEANER)
IF NOT NEEDED, DO NOT INSTALL
ACCESSORY WIRE IN J69.
GWRY
FLAME
ROLLOUT
SWITCH
FIGURE 54
COMPRESSOR
COMMON
POWER
HEAT
INDOOR BLOWER
COMMON
HS UNIT
COMMON
HS UNIT
COMPRESSOR
Y
W
G26
Furnace
Condensing UnitThermostat
G26 and CONDENSING UNIT
THERMOSTAT DESIGNATIONS
(Refer to specific thermostat and outdoor unit.)
COOLING
Y
G
W
C
R
G
R
C
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