Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3633IF, NNXT3633ILF Installation Manual • 4055-980 Rev. D • 9/15
6
2
2
Getting Started
A. Design and Installation Considerations
Heat & Glo direct vent gas appliances are designed to
operate with all combustion air siphoned from outside of
the building and all exhaust gases expelled to the outside.
No additional outside air source is required.
Installation MUST comply with local, regional, state and
national codes and regulations. Consult insurance carrier,
local building inspector,
fi
re of
fi
cials or authorities having
jurisdiction over restrictions, installation inspection and
permits.
Before installing, determine the following:
• Where the appliance is to be installed.
• The vent system con
fi
guration to be used.
• Gas supply piping requirements.
• Electrical wiring requirements.
• Framing and
fi
nishing details.
• Whether optional accessories—devices such as a fan,
wall switch, or remote control—are desired.
C. Inspect Appliance and Components
• Carefully remove the appliance and components from
the packaging.
• The vent system components and decorative doors and
fronts may be shipped in separate packages.
• If packaged separately, the log set and appliance grate
must be installed.
• Report to your dealer any parts damaged in shipment,
particularly the condition of the glass.
•
Read all of the instructions before starting the instal-
lation. Follow these instructions carefully during the
installation to ensure maximum safety and bene
fi
t.
WARNING! Risk of Fire or Explosion!
Damaged parts
could impair safe operation.
DO NOT i
nstall damaged, in-
complete or substitute components. Keep appliance dry.
B. Tools and Supplies Needed
Before beginning the installation be sure that the following
tools and building supplies are available.
Tape measure
Framing material
Pliers Hammer
Phillips screwdriver Manometer
Gloves Framing
square
Voltmeter
Electric drill and bits (1/4 in.)
Plumb line
Safety glasses
Level Reciprocating
saw
Flat blade screwdriver
Non-corrosive leak check solution
1/2 - 3/4 in. length, #6 or #8 Self-drilling screws
Caulking material (300ºF minimum continuous exposure
rating)
One 1/4 in. female connection (for fan).
Hearth & Home Technologies disclaims any responsibility for,
and the warranty will be voided by, the following actions:
• Installation and use of any damaged appliance or vent
system component.
• Modi
fi
cation of the appliance or vent system.
• Installation other than as instructed by Hearth & Home
Technologies.
• Improper positioning of the gas logs or the glass door.
• Installation and/or use of any component part not approved
by Hearth & Home Technologies.
Any such action may cause a
fi
re hazard.
WARNING! Risk of Fire, Explosion or Electric Shock!
DO NOT
use this appliance if any part has been under
water. Call a quali
fi
ed service technician to inspect the
appliance and to replace any part of the control system
and/or gas control which has been under water.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a quali
fi
ed
service technician, service agency or your dealer.
Installation and service of this
appliance should be performed by
quali
fi
ed personnel. Hearth & Home
Technologies recommends HHT
Factory Trained or NFI certified
professionals.
