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Troubleshooting — control module, Gold cgs gas-fired water boiler, Continued – Weil-McLain GOLD CGS 550-110-260/02002 User Manual

Page 44

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Part number 550-110-260/0200

44

GOLD

CGs

Gas-Fired Water Boiler

Troubleshooting —

control module

continued

11c

Figure 25

Control module connections

Indicator lights

POWER

TSTAT CIRC

LIMIT

PRESS SWITCH

FLAME

120 VAC IN

120 VAC to transformer

High voltage to spark electrode

24 VAC from transformer

24 VAC control circuits

120 VAC to circulator

Sense wire to flame sensor

120 VAC to inducer motor

120 VAC H

120 VAC N

120 VAC to

transformer

White

Black

120 VAC H

120 VAC N

120 VAC to circulator

White

Yellow

120 VAC IN

120 VAC H

120 VAC N

SJO cable

to J-box

Entrance
ground

Chassis
ground

White

Green

Green

Black

120 VAC to

inducer motor

120 VAC H

120 VAC N

Ground

White

Green

Black

24 VAC

24 VAC from transformer

Brown

Red

26037

Red wires to
pressure switch

Red wire to

gas valve

MV

Blue wire to

gas valve

PV

Yellow wires to limit control

and rollout switch

Black wires to

thermostat circuit

White wire to

gas valve

MV/PV

24 VAC control

circuits

Flame sense wire to pilot

High voltage to
pilot spark electrode