Monitor GF1800 - Page 66

MONITOR HEATING SYSTEM
Section 6: Electrical System ["GFISOO
Printed Circuit Wiring Diagram
WIRING DIAGRAM
TRANSFORMER
GAS CONTROL
VALVE
BLOWER MOTOR
RESISTOR
PS TF OHT
Fig. 6-2
BLOCK DIAGRAM
, CAUTION:
• Label all wires prior to disconnection wher
servicing controls. Wiring errors can cause
improper and dangerous operation.
Verify proper operation after servicing.
• If any of the original wire as supplied with the
appliance must be replaced, it must be
replaced with a wire of at least a 105°C
temperature rating.
CODE
Bk
Bl
Br
Or
R
W
Y
Gr
COLOR
Black
Blue
Brown
Orange
Red
White
Yellow
Green
MARK
BM
ER
F
FM
FR
FT
OHT
PS
RC1-4
R1-4
SL
SP
SV1
SV2
TA1-4
TF
TH
TR
PARTS NAME
COMBUSTION BLOWER MOTOR
ELECTRODE
CURRENT FUSE
CIRCULATION FAN MOTOR
FLAME ROD
FAN THERMOSTAT
OVERHEAT THERMOSTAT
AIR PRESSURE SWITCH
RECTIFICATION CIRCUIT
RELAY
SOLENOID
SPARKER
SOLENOID VALVE 1
SOLENOID VALVE 2
TRIAC
THERMAL FUSE
THERMISTOR
TRANSFORMER
GAS
Grounded inside chassis at bottom of unit.
GAS CONTROL
VALVE
61