TriangleTube Marquis TWH180, Installation Manual

Page: 28 / 39

25
Control System
Connector
Descriptions HT SELV
HT SELV
Max. Length
no. of location
and type
Pin nr. Board Silk
CN9
65001WS-12
1 - CASE GROUND - -
2 L Power Supply Line HT (120VAC) -
3 CP1 Unused HT (120VAC) -
4 IT Ignitor HT (120VAC) -
5 L(HT) Heater HT (120VAC) -
6 GV Gas Valve HT (120VAC) -
7 EARTH GROUND HT (120VAC) -
8 N Power Supply Neutral HT (120VAC) -
9-12
N
AC Power COM Line HT (120VAC) -
CN1
SMW250-03
1
RS-485
RS485 + SELV (5VDC) <=1km
2 RS485 - SELV (5VDC) <=1km
3 - - -
CN4
LWD1140-06
1
FAN
Unused - <=1.5m
2 GND SELV (30VDC) <=1.5m
3 VDD SELV (14VDC) <=1.5m
4 Fan power(start coil) SELV (30VDC) <=1.5m
5 Fan power(end coil) SELV (30VDC) <=1.5m
6 Fan speed feedback signal SELV (14VDC) <=1.5m
CN8
SMW250-04
1
MCU ISP
GND SELV (5VDC) <=1.5m
2 ISP /Reset port SELV (5VDC) <=1.5m
3 ISP TOOL0 Data port SELV (5VDC) <=1.5m
4 VCC SELV (5VDC) <=1.5m
CN11
LWD1140-16
1
HWL Unused - -
8
2
LWL Unused - -
10
3
HD Unused - -
11
4
TH
Connect to the Display Control
(Thermostat)
SELV (14VDC)
Min:AWG20,
<=100m
12
5
APS Air Pressure Switch SELV (14VDC) <=1.5m
13
7
BL Burner Limit SELV (14VDC) <=1.5m
15
8
HL High Limit SELV (14VDC) <=1.5m
17
Marquis Manual_61515_Water Heater 7/1/15 1:58 PM Page 28