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INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
Contact your dealer with questions regarding installation, operation or service.
NOTICE: DO NOT discard this manual!
Model(s):
This appliance may be installed as an OEM
installation in manufactured home (USA
only) or mobile home and must be installed
in accordance with the manufacturer's
instructions and the Manufactured Home
Construction and Safety Standard, Title 24
CFR, Part 3280 in the United States, or the
Standard for Installation in Mobile Homes,
CAN/CSA Z240 MH Series, in Canada.
This appliance is only for use with the type(s)
of gas indicated on the rating plate. This
appliance is not convertible for use with other
gases, unless a certifi ed kit is used.
Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner's Manual • 4055-981 Rev. D • 8/15
Owner's Manual

Care and Operation

WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
• DO NOT store or use gasoline or other fl am-
mable vapors and liquids in the vicinity of this
or any other appliance.
• What to do if you smell gas
- DO NOT try to light any appliance.
- DO NOT touch any electrical switch. DO
NOT use any phone in your building.
- Leave the building immediately.
- Immediately call your gas supplier from
a neighbor's phone. Follow the gas sup-
plier's instructions.
- If you cannot reach your gas supplier, call
the fi re department.
• Installation and service must be performed
by a qualifi ed installer, service agency, or the
gas supplier.
DANGER
DO NOT TOUCH GLASS
NEVER ALLOW CHILDREN
A barrier designed to reduce the risk of
burns from the hot viewing glass is provided
with this appliance and shall be installed for
the protection of children and other at-risk
individuals.
In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fi tter.
See appliance installation manual for additional
Commonwealth of Massachusetts requirements.
HOT GLASS WILL
CAUSE BURNS.
UNTIL COOLED.
TO TOUCH GLASS.
1

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Summary of Contents for Heatilator NNXT4236IF

  • Page 1: Care And Operation

    In the Commonwealth of Massachusetts installation must be performed by a licensed plumber or gas fi tter. See appliance installation manual for additional  Commonwealth of Massachusetts requirements. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 2: Welcome

    00,000 00,000 MIN. MIN. INPUT INPUT BTUH: BTUH: 00,000 00,000 00,000 00,000 Serial Serial ORIFICE ORIFICE SIZE: SIZE: #XXXXX #XXXXX #XXXXX #XXXXX XXXXXXXX XXXXXXXX (Serie): (Serie): Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 3: Table Of Contents

    C. Contact Information ......23  = Contains updated information. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 4: Limited Lifetime Warranty

    Firebox and heat exchanger Lifetime All replacement parts 90 Days beyond warranty period See conditions, exclusions, and limitations on next page. 4021-645G 2/15 Page 1 of 2 Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 5 THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY SPECIFIED HEREIN. THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE EXPRESSED WARRANTY SPECIFIED ABOVE. 4021-645G 2/15 Page 2 of 2 Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 6: Product Specifi C Information

    B. Glass Specifi cations (Ceramic) This appliance is equipped with 5 mm ceramic glass. Re- place glass only with 5 mm ceramic glass. Please contact your dealer for replacement glass. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 7: Important Safety And Operating Information

    • Keep remote controls out of reach of children. • Never leave children alone near a hot fi replace, whether operating or cooling down. • Teach children to NEVER touch the fi replace. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 8: General Operating Parts

    • Ensure that there are no gas leaks. • Ensure that the glass is sealed and in the proper position and that the integral barrier is in place. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 9: Lighting Instructions (Ipi)

    Propane Installation code, CSA B149.1. tions accompanying appliance. For additional information on operating your 593-913i Hearth & Home Technologies fi replace, please refer to www.fi replaces.com. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 10: Appliance Break-In

    A complete wiring diagram is included in the Electrical section of the appliance Installation Manual. 3. Turn the appliance on according to the instructions below for the appropriate type of control: Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 11: Detailed Component Operating Instructions - Intellifire™ Plus

    MODULE SELECTOR SWITCH FLAME HI/LOW STATUS NG/LP GAS-TYPE SWITCH INDICATOR LED SELECTOR SWITCH Figure 3.3 Control Module Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 12: Maintenance And Service

    CAUTION! Risk of Burns! The fi replace shall be turned Figure 4.1 Glass Assembly off and cooled before servicing. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 13: Remote Control

    • Inspect for corrosion or separation. • Verify weather stripping, sealing and fl ashing remains intact. • Inspect draft shield to verify it is not damaged or missing. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 14: Maintenance Tasks - Qualifi Ed Service Technician

    • Remove all foreign objects. • Verify unobstructed air circulation. Figure 4.2 IPI Pilot Flame Patterns Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 15: Frequently Asked Questions And Troubleshooting

    Some optional control systems available with IPI models may allow pilot fl ame to remain lit. Contact your dealer for additional information regarding operation and troubleshooting. Visit www.heatilator.com to locate a dealer. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 16: Troubleshooting

    Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module. If below 1.5 volts, replace module. If 1.5 volts or greater, replace valve. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 17 fl ame sensing rod. Verify continuity with a multi-meter with ohms set at lowest range. Replace pilot if any damage is detected. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 18: Reference Materials

    After a qualifi ed service technician has installed the re- mote control, follow the instructions supplied to operate your fan. See your dealer if you have questions. Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...
  • Page 19: Service Parts

    5941237, 6006743, 6019099, 6053165, 6145502, 6374822, 6484712, 6601579, 6769426, 6863064, 7077122, 7098269, 7258116, 7470729, 8147240 or other U.S. and foreign patents pending. 2000-945C Printed in U.S.A. - Copyright 2015 Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3933IF, NNXT3933ILF Owner’s Manual • 4055-981 Rev. D • 8/15...

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