Laars FT Series Installation And Operation Instructions Manual page 49

The FT Series Floor Standing, Combination Boiler
Wiring of a single pump system.
L N
O I
MAIN POWER
LINE VOLTAGE TERMINALS (14 Gauge Wire)
120 VAC
LESS THAN
12 AMPS.
1) Do not bring 24 V to any terminals on the FTCF boiler. The room thermostat (dry contact only) connects
back to the T/T terminals.
2) Install the outdoor sensor (OS) for outdoor reset operation.
3) Connect the system pump as shown above.
Note: This space is intentionally left blank.
SYSTEM 1 WIRING
SYSTEM PUMP
G L/ZC N G L N G
SYSTEM PUMP DHW RECIRC PUMP
(Factory Installed Jumper)
AC24V
OUTPUT LWC H-T/T
LOW VOLTAGE TERMINALS (18 Gauge Wire)
TSTAT
DHW
RECIRC.
R 0-10V W
SENSOR T/T
(+) INPUT (-)
Page 49
OUTDOOR
SENSOR
O/S