Weil-McLain EGH-125 - Manual (Page 11)

P
a
rt Number 550-110-677/0299
11
CSD-1 control system — Natural gas EGH-105 to EGH-125 EGH-105 to EGH-125 EGH-105 to EGH-125 EGH-105 to EGH-125 EGH-105 to EGH-125 Control Supplement
NOTE 10
TERMINAL
BLOCK
1 2 A 1 A2
W
JUNCTION BOX
EQUIPMENT
GROUND
(BY OTHERS)
(NOTE 7)
CIRCULATOR
N
(NOTE 9)
W Y
H
SWITCH
SERVICE
C
WIRE NUTS (3)
W
BK
Y
BK
G
Y
G
BK
BK
DAMPER
TO
BK
R
TRANSFORMER
120/24 V.A.C.
RELAY
DPST
PLUG-IN
CABLE
G
(NOTE 5)
THERMOSTAT
OR EMCS
PROBE LWCO
W
BK
G
BK
CONNECT
OR
D
AMPER
Y
GAS VALVE
ROBERTSHAW
D+
D
TH TR
BK
W
RESET
O
W R
(NOTE 8)
PILOT
MANUAL
HIGH LIMIT
MANUAL
RESET HIGH
LIMIT
UNIVERSAL SPARK
IGNITION CONTROL
SENSE
SPARK
MV
MV/PV
PV
ALARM
ALARM
24V
24V (GND)
BK
PILOT
SOLENOID
R
W
R
MOMENTARY
SWITCH
R
Y
IMPULSE
RELAY
R
G
Y
R
Y
R
R
R
G
R
R
R
G
G
R
W
PRE-WIRED PANEL
SCHEMATIC WIRING DIAGRAM
BK BK
(NOTE 6)
G
G
VALVE