36
3.6 WIRING DIAGRAM AND DIAGNOSTIC POINTS
2
R
MODULATING SOLENOIDE VALVE
GY
BR O
W P
BL R
WATER FLOW
CONTROL DEVICE
(CN1)
PB1: DATA TR LED (GREEN)
Y
Y
BK
BK
BK
BK
Y
Y
BL
R
BK
R
BK
W
W
BL
Y
Y
BK
R
Y
BL
W
R
Y
BK
1
33
34
VALVE
HEATER
C2
DATA TRANSFER
CONNECTOR
(CN3)
O
BR
R
P
BL
W
1
GY
BR O
W P
BL R
F1
Y
Y
POV
SV
MAIN SOLENOIDE VALVE
BK
BK
BL
Y
BK
BK
Y
BL
SV1 BK
BL
SOLENOIDE VALVE 1
SV2 BKY
SOLENOIDE VALVE 2
D
F
1
5
C
(CN2)
1
2
3
4
OFF
DIPSW
B
1
6
1
15
BK
BK
A
PB2: MODE
PB5: FORCED COMBUSTION MODE
(CN5)
FM
COMBUSTION FAN
W
Y BK
R
R BK
Y W
Y
Y
W
W
Y
Y
QS
R
R
BK BK
IGNITER
SPARK
ELECTRODE
IG
BK
R
BK
BK
OVERHEAT SWITCH
R
R
C1
ANTI-FREEZE
HEATER
G/Y
BK
BK
FREEZE PROTECTION THERMISTOR
OUTGOING WATER
THERMISTOR
W
W
W
W
W
BL
BL W
Y
FLAME ROD
3
Y
BK
WATER FLOW SENSOR
Y
W
BK
M
(CN1)
(CN6)
REMOTE
CONTROLLER
COLOR CODING
BK:BLACK
BR:BROWN
R :RED
O :ORANGE
Y :YELLOW
G :GREEN
BL:BLUE
PR:PURPLE
GY:GRAY
W :WHITE
P :PINK
A1
PB3: MENU SEL. OR GAS PRESSURE ADJUSTMENT
PB4: VALUE SEL. OR GAS PRESSURE ADJUSTMENT
THERMAL
FUSE
FUSE(5A)
G/Y
FUSE(5A)
BL
BR
Y
Y
Y
Y
Y
Y
Y
Y
G/Y
Y
Y
D2
D1
D3
D4
D5
D6
D7
R
D8
D9
D10
W
W
W
W
D11
W
W
2
R
MODULATING SOLENOIDE VALVE
GY
BR O
W P
BL R
WATER FLOW
CONTROL DEVICE
(CN1)
Y
Y
BK
BK
BK
BK
Y
Y
BL
R
BK
R
BK
W
W
BL
Y
Y
BK
R
Y
BL
W
R
Y
BK
1
33
34
VALVE
HEATER
C2
(CN3)
O
BR
R
P
BL
W
1
GY
BR O
W P
BL R
F1
Y
Y
POV
SV
MAIN SOLENOIDE VALVE
BK
BK
BL
Y
BK
BK
Y
BL
SV1 BK
BL
SOLENOIDE VALVE 1
SV2 BKY
SOLENOIDE VALVE 2
D
F
1
5
C
(CN2)
1
2
3
4
DIPSW
B
1
6
1
15
BK
BK
A
(CN5)
FM
COMBUSTION FAN
W
Y BK
R
R BK
Y W
Y
Y
W
W
Y
Y
QS
R
R
BK BK
IGNITER
SPARK
ELECTRODE
IG
BK
R
BK
BK
OVERHEAT SWITCH
R
R
C1
ANTI-FREEZE
HEATER
G/Y
BK
BK
FREEZE PROTECTION THERMISTOR
OUTGOING WATER
THERMISTOR
W
W
W
W
W
BL
BL W
Y
FLAME ROD
3
Y
BK
WATER FLOW SENSOR
Y
W
BK
M
(CN1)
(CN6)
REMOTE
CONTROLLER
COLOR CODING
BK:BLACK
BR:BROWN
R :RED
O :ORANGE
Y :YELLOW
G :GREEN
BL:BLUE
PR:PURPLE
GY:GRAY
W :WHITE
P :PINK
A1
THERMAL
FUSE
FUSE(5A)
FUSE(5A)
BL
BR
Y
Y
Y
Y
Y
Y
Y
Y
G/Y
Y
Y
D2
D1
D3
D4
D5
D6
D7
R
D8
D9
D10
W
W
W
W
D11
W
W
HEAT EXCHANGER OUTGOING
WATER THERMISTOR
BK OR W
BK OR W
230V 50Hz
COMPONENT
MEASUREMENT POINT
RANGE OF VALUE
CN/Con.re
WIRE COLOUR
MAIN POWER CODE
B
BR-BL
AC198-264V
REMOTE CONTROLLER
A1
BK-BK
DC11-13V
IGNITER
D3
R-BK
DC11-13V (DURING IGNITION)
FLAME ROD
D10
Y-BODY (GND)
OVER DC5V (DURING OPERATION)
Y-FLAME ROD
OVER 1μA (DURING OPERATION)
THERMAL FUSE
D7
W-W OR BK-BK
BELOW DC1V,BELOW 1Ω
OVERHEAT SWITCH
D2
BK-BK
BELOW DC1V,BELOW 1Ω
MODULATING SOLENOID VALVE
D9
Y-Y
DC2-17V / 10-20Ω
MAIN SOLENOID VALVE
BK-BK
DC8-13.5V / 15-25Ω
SOLENOID VALVE 1
D8
BL-BK
DC8-13.5V /20-30Ω
SOLENOID VALVE 2
Y-BK
OUTGOING WATER TH1
D5
W-W (No. 1 , 2)
15°C : 11.4-14.0kΩ
30°C : 6.4-7.8kΩ
45°C : 3.6-4.5kΩ
60°C : 2.2-2.7kΩ
100°C : 0.6-0.8kΩ
OUTGOING WATER TH2
W-W (No. 3, 4)
HEAT EXCHANGER OUTGOING WATER TH
D11
W-W
FREEZE PROTECTION THERMISTOR
D6
Y-Y
0°C : 38-43kΩ
10°C : 22-26kΩ
20°C : 14-17kΩ
WATER FLOW SENSOR
D4
R-BK (GND)
DC11-13V
Y-BK (GND)
DC4-7V (PULS. 6-200HZ)
WATER FLOW CONTROL DEVIC
F1
R-OR,P-OR
DC5-8V (DURING OPERATION)
BL-OR,W-OR
R-P,BL-W
40-60Ω
BR-GY
BELOW DC1V(FULL OPEN, FULL COLSE LIMITER ON)
DC4-6V(LIMITER OFF)
COMBUSTION FAN
D1
R-BK (GND)
DC7-48V
Y-BK (GND)
DC11-14V
W-BK (GND)
DC2-14V (PULS. OVER 20HZ=300RPM)
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