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Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3633IF, NNXT3633ILF Installation Manual • 4055-980 Rev. D • 9/15
A. General Information
WARNING! Risk of Shock or Explosion! DO NOT
wire
110-120 VAC to the valve or to the appliance wall switch.
Incorrect wiring will damage controls.
NOTICE:
This appliance must be electrically wired
and grounded in accordance with local codes or, in the
absence of local codes, with
National Electric Code
ANSI/NFPA 70-latest edition
or the
Canadian Electric
Code CSA C22.1.
• Wire the appliance junction box to unswitched 110-
120 VAC. This is required for proper operation of the
appliance (Intelli
fi
re ignition).
• A 110-120 VAC circuit for this product must be protected
with ground-fault circuit-interrupter protection, in
compliance with the applicable electrical codes, when
it is installed in locations such as in bathrooms or near
sinks.
• Low voltage and 110-120 VAC voltage cannot be shared
within the same wall box.
Accessories Requirements
• This appliance may be used with a wall switch, wall
mounted thermostat and/or a remote control.
Wiring for optional Hearth & Home Technologies approved
accessories should be done now to avoid reconstruction.
Follow instructions that come with those accessories.
8
8
Electrical Information
WHT
WHT
BLK
BLK
GRN wire
inside box
Copper
ground attached
to GRN screw with
GRN wire
14/2WG
Cover Plate
outside firebox
Romex
Connector
Figure 8.1 Junction Box Detail
NOTICE: DO NOT
wire
110-120 VAC to wall switch.
Junction Box Installation
If the box is being wired from the
INSIDE
of the appliance:
• Remove the screw attaching the junction box/receptacle
to the outer shell, rotate the junction box inward to dis-
engage it from the outer shell (see Figure 8.1).
• Pull the electrical wires from outside the appliance through
the opening into the valve compartment and secure wires
with a Romex connector. See Figure 8.1.
• Make all necessary wire connections to the junction box/
receptacle and reattach the junction box/receptacle to
the outer shell.
Electrical Service and Repair
WARNING! Risk of Shock!
Label all wires prior to dis-
connection when servicing controls. Wiring errors could
cause improper and dangerous operation. Verify proper
operation after servicing.
WARNING! Risk of Shock!
Replace damaged wire with
type 105º C rated wire. Wire must have high temperature
insulation.
IntelliFire™ Plus Ignition System Wiring
NOTICE:
Batteries should only be used as a power source
in the event of an emergency power outage. Batteries
should not be used as a primary long-term power source.
Battery polarity must be correct when installing batteries.
Do not store batteries in the battery pack when the
appliance is powered by the 6 volt transformer connected
to permanent electrical service.
• Wire the appliance junction box to 110-120 VAC for
proper operation of the appliance.
WARNING! Risk of Shock or Explosion! DO NOT
wire
IPI controlled appliance junction box to a switched circuit.
Incorrect wiring will override IPI safety lockout.
• Refer to Figure 8.2, IPI Wiring Diagram.
• This appliance is equipped with an IntelliFire Plus™
control valve which operates on a 6 volt/1.5 AMP system.
• Plug the 6 volt transformer plug into the appliance junction
box to supply power to the unit OR install 4 AA cell
batteries (not included) into the battery pack before use.
B. Wiring Requirements