HTP Hydra Smart Series - Page 44

lp-505 Rev. 000 Rel. 015 Date 1.7.20
44
Connector
Description HT Selv
No. of Location Pin Board Silk
CN9
65001WS-12
1 - UNUSED -
2 L Power Supply Line
HT (120V~)
3 CP1 UNUSED
4 IT Ignitor Power Supply
5 L/HT Ceramic Heater (Freeze Protection)
6 GV Gas Valve Power Supply
7 GROUND
8 N Power Supply (Neutral)
9-12 AC Power COM Line
CN1
SMW250-03
1
RS-485
RS-485 +
SELV (5V)2 GND
3 RS-485 -
CN4
LWD1140-06
1
FAN
UNUSED -
2 GND SELV (30V)
3 VDD SELV (14V)
4 Fan power (start coil)
SELV (30V)
5 Fan power (end coil)
6 Fan speed feedback signal SELV (14V)
CN8
LWD250-04
1
MCU ISP
GND
SELV (5V) DC
2 ISP / Reset Port
3 ISP TOOL0 Data Port
4 VCC
CN11
1
HWL UNUSED
-
8
2
LWL Water Leak Sensor (150 Model Only)
10
3
HD UNUSED
11
4
TH
Connect to the Display Control
(Thermostat)
SELV (14V) DC
12
5
Condensate APS Condensate Air Pressure Switch
13
6
Flue APS Flue Air Pressure Switch
14
7
BL Burner High Limit
15
8
HL Water Temperature High Limit
16
Table 23 - Water Heater Wiring 1