Page 56
4.23 Electrical Connections, (table)
Connector
Description HT SELV
#, Location, Type PIN Label
CN9
65001WS-12
1 - GROUND HT (120V~)
2 L Power Supply Line HT (120V~)
3 CP1 Boiler Pump HT (120V~)
4 IT Igniter HT (120V~)
5 Heating/CP2 System Pump HT (120V~)
6 GV Gas Valve HT (120V~)
7
-
- -
8 N Power Supply Neutral HT (120V~)
9-12
N AC Power COM Line HT (120V~)
CN6
LW6A4-03
1
CP3 DHW Pump
HT (120V~)
3 HT (120V~)
CN1
SMW250-5D
1
RS-485
RS485 (+) SELV (5V)
2 RS485 (-) SELV (5V)
3 GND
4 RS485 (+) SELV (5V)
5 RS485 (-) SELV (5V)
CN4
LWD1140-06D
1
FAN
Not Used -
2 GND SELV (14V)
3 VDD SELV (14V)
4 Fan power(start coil)
SELV
(8-26 Vac)
5 Fan power(end coil)
6 Fan speed feedback signal SELV (14V)
CN8
SMW250-04D
1
MCU ISP
GND SELV (5V)
2 ISP /Reset port SELV (5V)
3 ISP TOOL0 Data port SELV (5V)
4 VCC SELV (5V)
CN11
LWD1140-16
1
HWL Not Used SELV (12V~)
8
2
LWC Low Water Level Leakage Sensor SELV (12V~)
10
3
HD Heating Demand (T/T) SELV (5V)
11
4
TH
Connect to the Display
Control(Thermostat)
SELV (14V)
12
5
UNUSED Jump SELV (14V)
13
6
LWC External LWC SELV (14V)
14
7
BL Burner Limit SELV (14V)
15
8
HL Condensate Blocked Switch SELV (14V)
16
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