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Part Number 550-110-677/0299
19
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
A
2
W
JUNCTION BOX
EQUIPMENT
GROUND
(BY OTHERS)
(NOTE 7)
N
H
SWITCH
SERVICE
C
W
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
CONNECTOR
DAMPER
Y
GAS VALVE
ROBERTSHAW
D
D
TH
TR
BK
W
MANUAL RESET
O
W
R
(NOTE 8)
PILOT
PRESSURETROL
MANUAL RESET
PRESSURETROL
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
Y Y
CONTROL
& PUMP
BK
CONTROL
(NOTE 9)
OPERATING
G
FLOAT LWCO
VALVE
WIRE NUTS (2)