Wiring Diagram - andrews WHX56 Installation Manual, Operation And Maintenance Manual

20

WIRING DIAGRAM

Wiring Diagram (WHX56, LWHX56 )
AIRFLOW CHANGE
2 2
O
1 1
-OVER CONNECTOR O O
1
(VACANT CONNECTOR)
2
3
4
5
6
R
7
R
INLET WATER
3
W W
2
THERMISTOR
W 1 W
HEAT EXCHANGER W
W 4 W
THERMISTOR
3
2
1
W W
OUTLET WATER
W
2
W W
THERMISTOR
1
W W
OPERATING LED
BK 2 BK
W 1 W
8
BK BK
7
V V
MAIN WATER
SM (VCC) W 6 W
G 5 G
FLOW CONTROL
4
O O
VALVE (VCC) 3
R R
(Fully open) 2
Y Y
LS
(GND) BL 1 BL
BK 8 BK
7 V
V
(VCC) 6
SM W W
BYPASS WATER
5
G G
4
FLOW CONTROL O O
(VCC) R 3
VALVE
(Fully open) 2
Y Y
LS
(GND) 1
BL BL
BL
1 R
BL
THERMAL FUSE
BL 1 BL
REMOTE CONTROLLER
BL
BL
RC TERMINAL
1 R
SYSTEM CONTROLLER B5
2 BK
(OPTIONAL)
FLAME ROD
W (Vs) W W
6
5
BL(GND)
BL 4 BL
FAN MOTOR FM
R (Vcc) R 3 R
Y (FG) 2 Y
Y
O (Vsp)
O 1 O
IGNITER
ELECTRODE IG
HIGH-LIMIT SWITCH
W 2 BK
W 1 W
1 BR
(VACANT CONNECTOR)
2 BR
BR
1 1 GY
(UN-USED)
2 2 BR
URRENT LEAKAGE
AFETY DEVICE
GFCI)
<AC230V>
BR
BR 1 BR
BL
BL 2
W
BL
Y/G Y/G Y/G
EARTH EARTH EARTH
FREEZE PROTECTION BL
THERMOSTAT
W
FREEZE PROTECTION BL
THERMOSTAT
BL
BR
BR
(UN-USED)
(VACANT CONNECTOR)
<CN89>
<CN38>
2 1
4 3
6 5
8 7
10 9
12 11
14 13
16 15
18 17
20 19
22 21
24 23
26 25
28 27
30 29
32 31
1
<CN78>
R
<CN102>
4
G
2 BL
1 BL
EARTH
W
BK
TRANSFORMER
BR BR
1 3
GY
2 GY BL 2 BL
BL
BL 3 W 1 W
BL
BL/W W W W W W W W W W
1 2 2 1 2 1 2 1 2 1
W W W W W W W W W W
FREEZE PREVENTION HEATER
W 1
R
2
3 BL
2 R
1 BL
BL
15
<CN102> <CN63>
14
1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 13
3 BL
12
2
11
1 BL
MAIN CIRCUIT
10
BOARD
9
8
7
6
5
4
3
2
1 R
<CN75>
R
R
BL
6
BL
BL
5
G
4
W
3
BK
2
R
1
<CN184>
1 2 3 4
<CN10>
5 6 7 8
1 3 5
<CN1>
2 4 6
O Y W
<CN27>
BL R <CN160>
5 4 3 2 1 9 7 6 5 4 3 2 1
3 2 1
7
<CN
3 2 1
<CN104>
6
5
89A>
BK R
4
3
G
2
1
BK
W
2 1
<CN101>
<CN92>
POWER CIRCUIT
BOARD
W
6
5
BL 4
R 3
2
Y
O 1
BK BK W
2 1
(VACANT CONNECTOR)
COLOR CODING
W : White
R : Red
BK : Black
V : Violet
O : Orange
BL : Blue
GY : Gray
G : Green
BR : Brown
Y : Yellow
1
R R
2
W 3 W
3 (Pulse)
Y Y
2 (VCC)
R R
BL 1 BL (GND)
R
Y 3 Y (Pulse)
R 2 R (VCC)
1 (GND)
BL BL
BL
Other Unit in Quick Connect Multi System
MAIN CIRCUIT
BOARD
Manifold Gas Pressure
Increase Button
Manifold Gas Pressure
Decrease Button
Minimum Manifold Pressure Set Button
Maximum Manifold Pressure Set Button <CN184>
(For Quick Connect Multi System Only)
Quick Connect Cord(Optional)
BL 6 BL BL
6
5 BL BL
BL
5
G 4 G(BK) (G)BK
4
W 3 W(R) (W)R
3
BK 2 BK(G) (BK)G
2
1
R R(W) (R)W
1
BL
BL 8 BL
DU
R 7 R
R
O 6 O
BL 5 BL
4
BR BR W
SV
GY 3 GY 10
0
W 2 W W
BK 1 BK
BK
SV
11
Q1
BK
GY
SV
12
Q2
GY
O
SV
13
Q3
O
BR
SV
14
Q4
BR
LIVE
VARISTOR
CURRENT LEAKAGE SAFETY DEVICE
1
2
FREEZE PROTECTION
3
THERMOSTAT
AC230V
PRIMARY
SECONDARY
AC100V
RELAY 9 IGNITER
IG
RELAY 3 SOLENOID VALVE 0
SV0
RELAY 1 SOLENOID VALVE Q1
SV1
RELAY 10
RELAY 4 SOLENOID VALVE Q2
DC90V SV2
RELAY 5 SOLENOID VALVE Q3
SV3
RELAY 2 SOLENOID VALVE Q4
DC140V SV4
W
POWER
FAN
BL CONTROLLER
R A
Y
B
O
DC15V(2)
PRIMARY
SECONDARY
DC15V(1)
15V POWER CIRCUIT
MAIN WATER FLOW SENSOR
BYPASS WATER FLOW SENSOR
GND
MAIN WATER FLOW CONTROL VALVE
BYPASS WATER FLOW CONTROL VALVE
CPU
CENTRAL
PROCESSING
THERMAL FUSE RELAY 1
UNIT
RELAY 2
RELAY
RELAY 5
DRIVING
CIRCUIT
RELAY 7
RELAY 9
RELAY 10
DU D
GAS PROPORTION VALVE
POWER CONTROL CIRCUIT
FLAME DETECTING CIRCUIT
EARTH
FR FLAME ROD C
BURNER THERMISTOR
MAIN WATER
QS
FLOW SENSOR
BYPASS WATER FLOW
QS
SENSOR
BL BL
6 6
BL BL
5 5
G G
4 4
184
W W
3 3
BK BK
2 2
R R
1 1
6
5
4
3
2
1
GAS VALVE UNIT
GAS MANIFOLD
NEUTRAL
VARISTOR ARRESTER
FREEZE PREVENTION
HEATER
EARTH
10A(FUSE)
HIGH LIMIT
SWITCH
DC90V
DC140V
FAN MOTOR
FAN CONTROL FAN
OUTPUT
PULSE
A
CONTROL
CIRCUIT
FAN ROTATION
SPEED INPUT
B
Sub-CPU
SUB
CONTROL
UNIT
C D
OUTLET WATER THERMISTOR
INLET WATER THERMISTOR
HEAT EXCHANGER
THERMISTOR
FREEZE PROTECTION
THERMISTOR
BURNER THERMISTOR
5V POWER CIRCUIT
GND