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20
FIGURE 19: WIRING DIAGRAM, INTERMITTENT IGNITION (EI) SYSTEM LESS TANKLESS HEATER
FIGURE 20: WIRING DIAGRAM, STANDING PILOT WITH TANKLESS HEATER
2
(NOTE 2)
2. VENT DAMPER REQUIRED ON ALL BOILERS EXCEPT CWI310 - CWI379. WHEN DAMPER IS NOT US
DAMPER HARNESS IS REPLACED WITH JUMPER PLUG.
TH
TR
+
ROBERTSHAW
7000DERHC
GAS VALVE
(CWI379)
HONEYWELL
VR8204/VR8304
SERIES GAS VALVES
(CWI069 - 345)
2
(NOTE 2)
2. VENT DAMPER REQUIRED ON ALL BOILERS EXCEPT CWI310 - CWI379. WHEN DAMPER IS
NOT USED, DAMPER HARNESS IS OMITTED AND TERMINAL B1 IS WIRED DIRECTLY TO FRS.
AS SHOWN IN LADDER DIAGRAM
HIGH LIMIT
LOW
LIMIT
HONEYWELL
L8124E
LESS VENT
DAMPER
L
N
V8295A
(CWI310-379 ONLY)
NL
V8295A
GAS VALVE
(CWI310-379 ONLY)