Field Wiring; Wiring Connections; Wiring Terminal Access; Controller Fuse / Blower Fuse - NTI FTV110 Installation And Operation Manual

FTV I&O Manual
12.0

FIELD WIRING

All wiring must be in accordance with the Canadian Electrical code CSA C22.1 and/or the National Electrical
Code ANSI/NFPA 70, local codes, and this manual. NOTICE: the boiler must be electrically grounded. The
electrical rating of the FTV is 120V / 1 Phase / 60 Hz / 12A.
Power Supply - FTV are designed to be powered using a single phase 120VAC power
supply that is fused (or protected via a circuit breaker) to allow a maximum of 15 Amps.
Failure to follow instructions may result in component failure, serious injury or death.
Avoid Shocks – To Avoid Electrical Shock, turn off electrical power to the boiler prior
to opening any electrical box within the unit. Ensure the power remains off while any
wiring connections are being made. Failure to follow these instructions may result in
component failure, serious injury or death.

Wiring Connections

All field wiring connections to the boiler are made at barrier strips located on FTV control panel. The
connections are accessed by removing the front door of the boiler, followed by the removal of the control panel
cover; see Figure 12-1. Field wiring enters the cabinet through holes located on the bottom of the boiler cabinet,
then must be routed through holes in the bottom of the control panel; protect the wires from stain and chaffing
by using suitable strain-relief grommets when passing the wiring through the holes. Field wiring connections
are to be installed in accordance with instructions provided in Figure 12-2 and Table 12-1.
Controller Fuse (120VAC) – the FTV controller is equipped with a 3.15 Amp fuse that protects most 120VAC
circuits within the boiler, as well as any circulators connected to it. A spare fuse is located to the left of the
operating fuse in an open holder; see Figure 12-1.
Blower Fuse (120VAC) – an inline 7 Amp fuse, located in a fuse holder to the left of the ON/OFF power switch
(behind the support bracket), protects the 120VAC circuit of the combustion blower; see Figure 12-1.
Field Wiring Terminals
Blower Fuse – 3AG
7A 250 Fast-acting
Control Panel Cover
Wire Protection – When passing wiring through the cabinet of the boiler, the
installer must use wire grommets suitable for securing the wiring and preventing
chafing. Failure to follow instructions may result in component failure, serious injury
or death.
Figure 12-1 Wiring Terminal Access
│Boiler and Heating System Piping
Spare Fuse
Controller Fuse – 3.15A
®
5x20mm Slo-Blo
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