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MAXIMUM LOAD NOT TO
EXCEED 20 VA AT 24 V CLASS 2.
(2)S47 USED ON 60 & 75 MODELS
ONLY.
DISCONNECT ALL POWER
BEFORE SERVICING.
FOR PROPER GROUNDING
REFER TO LOCAL CODES.
YELLOW
GREEN/YELLOW
YELLOW
BLUE
BLUE
ORANGE
RED
BROWN
BLUE
DESCRIPTION
KEY COMPONENT
A3 CONTROL, BURNER, IGNITION
B3 MOTOR, BLOWER
B6 MOTOR, COMBUSTION AIR BLOWER
GV1 VALVE, GAS
S10 LIMIT, PRIMARY GAS
S18 SWITCH, COMB. AIR INDUCER PROVE
(1)S47 SWITCH, FLAME ROLLOUT 1
(2)S47 SWITCH, FLAME ROLLOUT 2
S43 SWITCH, LOW GAS PRESSURE
T1 TRANSFORMER, CONTROL
DS SWITCH, DOOR
WIRING DIAGRAM 6/03
HEATING UNITS ˘ GAS GCI−3A
TUA45/60/75/100/125S(N,L(A,S)F
Supersedes Form No. New Form No.
065329500