HTP EFTC-199W - Page 48

48
LP-520 REV. 5.1.17
CONNECTOR
DESCRIPTION
HT SELV
NO. OF LOCATION
PIN
BOARD SILK
CN7
LWD1140-14
1
F.S
Flame Detect Sensor
SELV (5V)
8
2
OP.S
Operating Water Temperature Sensor
9
3
DH.S
DHW Temperature Sensor
10
4
I.S
NOT USED
11
5
BG.S
Exhaust Temperature Sensor
12
6
ST.S
NOT USED
13
7
SP.S
Over-Heat Temperature Sensor
14
CN14
SMW250-09
1
DHM
GND
SELV (14V)
2
DHM Stepper Motor Position
3
VDD
4
DHM Stepper Motor Coil X Phase
5
DHM Stepper Motor Coil Y Phase
6
VDD
7
DHM Stepper Motor Coil / X Phase
8
DHM Power IWM Stepper Motor Coil / Y
Phase
9
NOT USED
-
CN3
SMW250-06
4
FLUX1
VCC
SELV (5V)
5
Water Flow Sensor
6
GND
CN5
SMW250-10
1
RPM
Fan RPM Check
2
GND
Table 20 – Appliance Wiring 2