User manual

35
DIAGNOSTIC POINTS
Diagnostic Points- To be read in conjunction with the wiring diagram.
No. COMPONENT
MEASUREMENT POINT
CN
WIRE COLOR
A NOTE
1
SURGE PROTECTOR
AC207~264V
DC11~13V
Bk-Bk
REMOTE CONTROL
4
DC11~13V
R-Bk
B
3
WATER FLOW SENSOR
5
6
P-P
C
2
Y-Bk
DC4~7V(PULSE 17~460Hz)
R-Bk DC6~45V
67~81
DC2~15V
MODULATING
SOLENOID VALVE
WATER FLOW
CONTROL DEVICE
Gy-Br
Gy-Y
R-B
BELOW DC1V(LIMITER ON)
DC11~13V
DC4~6V(LIMITER OFF)
FULL OPEN POSITION
DC11~13V
Gy-Or
OPERATE ELECTRICITY
BELOW DC1V(LIMITER ON)
DC4~6V(LIMITER OFF)
ON2.7L/min (30Hz)
OVER 1800PULSE/min
()(
GND
F
5
B-Br
D
1
COMBUSTION FAN
7
AC5~150V
AFTER IGNITION
FLAME ROD
C
1
8
OFF2.0L/min (20Hz)
BELOW 1200PULSE/min
()()
B
1
G
1
Br-W
Or-W
Y-W
R-W
DC2~6V
15~35
GND
3
2
BY-PASS FLOW
CONTROL DEVICE
NORMAL VALUE
CONTROL ELECTRICITY
FULL CLOSE POSITION
OPERATE CONDITION
FLAME CONDITION
TRANSFORMER
VOLTAGES AND RESISTANCES
16~18
B-Br
WIRE COLOR
CN
F
5
NORMAL VALUE
A
1
GND
Y-Bk DC11~13V
F
7
W-Bk
AC90~110V
Gy-Gy
IGNITER
P-Bk
Y-Bk
THERMAL FUSE
B
2
R-R
B
4
W-W
AC90~110V
DC80~100V
1.7~2.1k
B-Bk
BELOW 1
9
11
15∞C. . . 11.4~14.0 k
6.4~7.8 k
3.6~4.5 k
0.6~0.8 k
OUTGOING WATER
THERMISTOR
B
5
E
4
Br-Bk
DC80~100V
15
DC80~100V
DC80~100V
1.7~2.0k
HEAT EXCHANGER
OUTGOING THERMISTOR
SOLENOID VALVE 3 ON MANIFOLD
C
3
10
1.7~2.1k
1.7~2.1k