Laars FTCF140 Installation And Operation Instructions Manual page 53

The FT Series Floor Standing, Combination Boiler
4.21 Electrical Connections (continued)
Connector
#, Location, Type
PIN
1
8
2
9
3
10
4
CN7
LWD1140-14
11
5
12
6
13
7
14
1
2
3
4
CN14
5
SMW250-09D
6
7
8
9
1
2
3
CN3
SMW250-06D
4
5
6
Description
Label
F.S
Flame Detect Sensor
OP.S Operation water temperature sensor
DH.S DHW temperature sensor
I.S
CH Return sensor
BG.S Exhaust temperature sensor
ST.S Storage water temperature sensor
SP.S
Over heat temperature sensor
GND
DHM Stepper motor position
VDD
DHM Stepper motor coil X phase
IWM
DHM Stepper motor coil Y phase
VDD
DHM Stepper motor coil /X phase
DHM Stepper motor coil /Y phase
Unuse
VCC
APS
SEN-
GND
SOR
Voltage input
VCC
FLUX1 Water Flow Sensor
GND
HT
SELV
SELV (5VDC)
SELV (5VDC)
SELV (5VDC)
SELV (5VDC)
SELV (5VDC)
SELV (5VDC)
SELV (5VDC)
SELV (14VDC)
SELV (14VDC)
SELV (14VDC)
SELV (14VDC)
SELV (14VDC)
SELV (14VDC)
SELV (14VDC)
SELV (14VDC)
-
SELV (5V)
SELV (5V)
SELV (5V)
SELV (5VDC)
SELV (5VDC)
SELV (5VDC)
Page 53