Weil-McLain manual CSD-1control system - Natural gas, EGH-105to EGH-125 Control Supplement

Part Number 550

SCHEMATIC WIRING DIAGRAM

-110-677/0299

EQUIPMENT

GROUND (NOTE 7)

	(NOTE 6)
	MANUAL		MANUAL
HIGH	RESET		RESET
LIMIT	HIGH LIMIT	PROBE LWCO
	BK	BK		BK

IMPULSE

RELAY

R

R

Y

MOMENTARY

SWITCH

R R

R

W

G

GR

R

D+

D

TH TR W

ROBERTSHAW GAS VALVE

W

BK

PILOT

SOLENOID

VALVE

BK W R

UNIVERSAL SPARK

IGNITION CONTROL

MV

MV/PV

PV

R

ALARM

R

BK		THERMOSTAT
		OR EMCS
	BK BK	(NOTE 5)	G

R Y

Y

ALARM

24V

G

	SERVICE	Y	W
	SWITCH
		G	G
(BY OTHERS)			G	G
H		C	R
	BK			BK
		BK
			TRANSFORMER
			120/24 V.A.C.
N				G
		W		PLUG-IN
		Y
				DPST
W	Y			RELAY
CIRCULATOR		JUNCTION BOX		CABLE
(NOTE 9)
				TO
		WIRE NUTS (3)		DAMPER

G R

1 2 A 1

Y
DAMPER	CONNECTOR

R

TERMINAL

BLOCK

A2

NOTE 10

PRE-WIRED PANEL

24V (GND)

SENSE

SPARK

W O

PILOT

(NOTE 8)

EGH-105 to EGH-125 Control Supplement CSD-1 control system — Natural gas

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