American Standard TCWH-199-AS Installation Start-Up Maintenance Parts page 49

CONNECTOR
NO. OF LOCATION PIN
1
8
2
9
3
CN7
10
LWD1140-14
4
11
5
12
6
13
7
14
1
2
3
CN12
4
SMW250-07
5
6
7
1
2
3
CN10
4
SMW250-08
5
6
7
8
1
2
3
4
CN14
SMW250-09
5
6
7
8
9
1
2
CN3
3
SMW250-06
4
5
6
CN5 1
SMW250-10
2
Table 20 – Water Heater Wiring 2
BOARD SILK
F.S
OP.S Operating Water Temperature Sensor
DH.S
I.S Inlet Water Temperature Sensor
BG.S
ST.S
SP.S
AGM Stepper Motor Coil / Y Phase
AWGM Stepper Motor Coil / X Phase
AGM
AGM Stepper Motor Position
DHM Stepper Motor Coil / Y Phase
DHM Stepper Motor Coil / X Phase
DHM (Mixing Valve)
DHM Stepper Motor Position
IWM Stepper Motor Position
IWM Stepper Motor Coil X Phase
IWM (Flow Control
Valve)
IWM Stepper Motor Coil X Phase
IWM Stepper Motor Coil / X Phase
IWM Power IWM Stepper Motor Coil / Y Phase
WPS
FLUX1
RPM
DESCRIPTION
Flame Detect Sensor
DHW Temperature Sensor
Exhaust Temperature Sensor
Unused
Unused
GND
VDD
GND
Unused
VDD
GND
VDD
VDD
Unused
Unused
VCC
Water Flow Sensor
GND
Fan RPM Check
GND
HT SELV
SELV (5V)
SELV (24V)
SELV (14V)
SELV (24V)
SELV (14V)
-
-
SELV (5V)
49