Westinghouse WBRC 140W Series Installation Manual page 49

CONNECTOR
NO. OF LOCATION
CN9
65001WS-12
CN6
LW6A4-03
CN1
SMW250-03
CN4
LWD1140-06
CN8
SMW250-04
CN11
LWD1140-16
Table 19 – Appliance Wiring 1
PIN BOARD SILK
1 -
2 L
3 CP1
4 IT
5 L(HT)
6 GV
7 -
8 N
9-12
1
CP2/3WAY
3
1
2 RS-485
3
1
2
3
FAN
4
5
6
1
2
MCU ISP
3
4
1
HWL
8
2
LWL
10
3
HD
11
4
TH
12
5
APS
13
6
EL
14
7
BL
15
8
HL
16
DESCRIPTION
GROUND
Power Supply Line
NOT USED for 140W Models
External Pump for 199W Models
Ignitor
CH Pump
Gas Valve
-
Power Supply Neutral
AC Power COM Line
3 Way Valve
RS485 +
GND
RS485 -
NOT USED
GND
VDD
Fan power (start coil)
Fan power (end coil)
Fan speed feedback signal
GND
ISP / Reset Port
ISP TOOL0 Data Port
VCC
NOT USED
Low Water Level Leakage Sensor
Central Heating Demand
Connect to the Display Control
(Thermostat)
Air Pressure Switch
NOT USED
Burner Limit
Condensate Block
49
HT SELV
HT (120V~) AC
SELV (5V) DC
-
SELV (5V) DC
-
SELV (14V) DC
SELV (14V) DC
SELV (8~26.5V) AC
SELV (14V) DC
SELV (5V) DC
SELV (12V~) AC
SELV (5V) DC
SELV (14V) DC
WHL-012 REV. 4.8.16