15
16
LP-532 REV. 8.13.2014
LP-532 REV. 8.13.2014
Connector
Descriptions
HT
SELV
no. of location and
type
Pin nr.
Board Silk
CN9
65001WS-12
1
-
Unused
-
2
L
Power Supply Line
HT (120VAC)
3
CP1
Unused
HT (120VAC)
4
IT
Igniter
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)
2
GND
SELV (5VDC)
3
RS485 -
SELV (5VDC)
CN4
LWD1140-06
1
FAN
Unused
-
2
GND
SELV (30VDC)
3
VDD
SELV (14VDC)
4
Fan power(start coil)
SELV (30VDC)
5
Fan power(end coil)
SELV (30VDC)
6
Fan speed feedback signal
SELV (14VDC)
CN8
SMW250-04
1
MCU ISP
GND
SELV (5VDC)
2
ISP /Reset port
SELV (5VDC)
3
ISP TOOL0 Data port
SELV (5VDC)
4
VCC
SELV (5VDC)
CN11
LWD1140-16
1
HWL
Unused
-
8
2
LWL
Unused
-
10
3
HD
Unused
-
11
4
TH
Connect to the Display Con-
trol(Thermostat)
SELV (14VDC)
12
5
APS
Air Pressure Switch
SELV (14VDC)
13
6
EL
Jumper Wire
SELV (14VDC)
14
7
BL
Burner Limit
SELV (14VDC)
15
8
HL
High Limit
SELV (14VDC)
16
CN5
SMW250-10
1
RPM
FAN RPM Check
SELV (5VDC)
2
GND
SELV (5VDC)
Connector
Description
HT
SELV
no. of location and
type
Pin
nr.
Board
Silk
CN7
LWD1140-14
1
F.S
Flame Detect Sensor
SELV (5VDC)
8
2
OP.S
Operation water temperature sensor
SELV (5VDC)
9
3
DH.S
DHW temperature sensor
SELV (5VDC)
10
4
I.S
Inlet water temperature sensor
SELV (5VDC)
11
5
BG.S
Exhaust temperature sensor
SELV (5VDC)
12
6
ST.S
Unused
-
13
7
SP.S
Unused
-
14
CN12
SMW250-07
1
AGM
AGM Stepper motor coil /Y phase
SELV (24VDC)
2
AGM Stepper motor coil Y phase
SELV (24VDC)
3
AGM Stepper motor coil /X phase
SELV (24VDC)
4
AGM Stepper motor coil X phase
SELV (24VDC)
5
GND
SELV (24VDC)
6
AGM Stepper motor position
SELV (14VDC)
7
VDD
SELV (24VDC)
CN10
SMW250-08
1
DHM
DHM Stepper motor coil /Y phase
SELV (14VDC)
2
DHM Stepper motor coil Y phase
SELV (14VDC)
3
DHM Stepper motor coil /X phase
SELV (14VDC)
4
DHM Stepper motor coil X phase
SELV (14VDC)
5
GND
SELV (14VDC)
6
DHM Stepper motor position
SELV (14VDC)
7
Unused
SELV (14VDC)
8
VDD
SELV (14VDC)
CN14
SMW250-09
1
IWM
GND
SELV (14VDC)
2
IWM Stepper motor position
SELV (14VDC)
3
VDD
SELV (14VDC)
4
IWM Stepper motor coil X phase
SELV (14VDC)
5
IWM Stepper motor coil Y phase
SELV (14VDC)
6
VDD
SELV (14VDC)
7
IWM Stepper motor coil /X phase
SELV (14VDC)
8
IWM power IWM Stepper motor coil /Y phase
SELV (14VDC)
9
Unused
-
CN3
SMW250-06
1
WPS
Unused
SELV (5VDC)
2
Unused
SELV (5VDC)
3
Unused
SELV (5VDC)
4
FLUX1
VCC
SELV (5VDC)
5
Water Flow Sensor
SELV (5VDC)
6
GND
SELV (5VDC)
Chapter 1 Product Characteristics
Chapter 1 Product Characteristics