Westinghouse WGRT 150 Series Installation Start-Up Maintenance Parts page 52

CONNECTOR
NO. OF LOCATION
CN7
LWD1140-14
CN12
SMW250-07
CN10
SMW250-08
CN14
SMW250-09
CN3
SMW250-06
CN5
SMW250-10
Table 25 – Water Heater Wiring 2
PIN BOARD SILK
1
F.S
8
2
OP.S
9
3
DH.S
10
4
I.S
11
5
BG.S
12
6
ST.S
13
7
SP.S
14
1
2
3
4 AGM
5
6
7
1
2
3
4
DHM
(Mixing Valve)
5
6
7
8
1
2
3
4
IWM
5
(Flow Control
6
Valve)
7
8
9
1
2 WPS
3
4
5 FLUX1
6
1
RPM
2
DESCRIPTION
Flame Detect Sensor
Operating Water Temperature Sensor
DHW Temperature Sensor
Inlet Water Temperature Sensor
Exhaust Temperature Sensor
Unused
Unused
AGM Stepper Motor Coil / Y Phase
AGM Stepper Motor Coil / X Phase
GND
AGM Stepper Motor Position
VDD
DHM Stepper Motor Coil / Y Phase
DHM Stepper Motor Coil / X Phase
GND
DHM Stepper Motor Position
Unused
VDD
GND
IWM Stepper Motor Position
VDD
IWM Stepper Motor Coil X Phase
IWM Stepper Motor Coil Y Phase
VDD
IWM Stepper Motor Coil / X Phase
IWM Power IWM Stepper Motor Coil / Y
Phase
Unused
Unused
VCC
Water Flow Sensor
GND
Fan RPM Check
GND
52
HT SELV
SELV (5V)
SELV (24V)
SELV (14V)
SELV (24V)
SELV (14V)
-
-
SELV (5V)
WHL-004 REV. 5.26.17