Intertek FT Series - Electrical Wiring Connections

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This appliance must be electrically grounded. Ensure the electrical receptacle that the combination boiler will
be plugged into, is properly grounded; if wiring directly.
It is permissible to remove the electrical plug and hard wire the appliance directly into appropriately sized
electrical wiring, properly grounded.
Do not attach the ground wire to either the gas or the water piping as plastic pipe or dielectric unions may
isolate the Combination boiler electrically.
The wiring diagrams contained in this manual are for reference purposes only.
Refer to these diagrams and diagrams from external controls used with this appliance. Read, understand,
and follow all wiring instructions.
Do not disconnect the power supply when the unit is in normal operation. Damage caused by freezing is not
covered under the warranty.
Manual(Rocker) switch maximum allowable current for each circulator is 1.6 amps at 125VAC.
( Housing : Nylon #66 UL 94V-2 , Rocker : Nylon #66 UL 94V-2, Terminal : Copper Alloy)
Terminal block (External power connector) : DFT-20A-10P (20 amps at 300VAC)
Field Wiring: Top of terminals
WARNING
Install wiring and electrically ground boiler in accordance with authority having jurisdiction or, in the
absence of such requirements, follow the National Electrical Code, NFPA 70, and/or CSA C22.1
Electrical Code-Part 1 in Canada.
ELECTRICAL SHOCK HAZARD — For your safety, turn o󰀨 electrical power supply at service
entrance panel before making any electrical connections to avoid possible electric shock hazard.
Failure to do so can cause severe personal injury or death.
4.19 Electrical Wiring Connections
Install wiring as shown below.
LWC
L N G
MAIN POWER
L/ZC N G
L N G
SYSTEM PUMP
DHW PUMP
AC24V
OUTPUT
DHW
SENSOR
T/T
O/S
R
W
(+)
(-)
0~10V
INPUT