Navien CH-180 Service manual - page 34
32
Point
nction
Normal Value
Check
K
Igniter
ON : AC 97~138V
OFF : 0V
Confirm voltage as ignition operating.
Power Input
AC 97~138V
Confirm approval of the 1st power
resource. Confirm the FUSE.
Confirm the circuit breaker.
Gas Valve
3-Way Valve
Pump
AWS
P.E
Flame Rod
Power trans
AC150V
Power trans
AC120V
AC 24V
Out-put
T/S
A/H
Extern
Power
ON : DC83~120V
OFF : 0V
Confirm voltage as the Main Gas
Valve operating.
Confirm voltage as the Gas
So-lenoid Valve 1 operating.
ON : DC83~120V
OFF : 0V
ON : DC83~120V
OFF : 0V
ON : AC97~138V
OFF : 0V
ON : AC97~138V
OFF : 0V
ON : AC 97~138V
OFF : 0V
Protect Earth
0~20uA
AC 123~177V
AC 97~138V
AC 24V
Externally
Externally
ON : AC 97~138V
OFF : 0V
Confirm voltage as the Gas
So-lenoid Valve 2 operating.
Confirm voltage as the 3-Way
Valve operating.
Confirm voltage as the circulation
pump operating.
Confirm voltage as Auto Water
Feeder valve operating.
Same to the case earth Protect Earth.
Measure the currency as
sensing flame.
Confirm output voltage.
Confirm output voltage.
Confirm output voltage.
If AC 24V is connected externally
AC 24V input On/Off,
Else dry contact input On/Off.
If AC 24V is connected externally
AC 24V output On/Off.
Confirm voltage as operating.
L
M
N
O
P
Q
R
S
T
Wire Color
BLUE-BLUE
BLUE-BLACK
BROWN-BROWN
YELLOW-YELLOW
RED-RED
BLUE-BLACK
YELLOW-WHITE
BLUE-BLUE
GREEN
BLACK
RED-RED
WHITE-BLACK
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©Navien America Inc. 2010
CH series service Manual
Version 1.0