Heatilator NNXT33-IFT Owner's Manual
Heatilator NNXT33-IFT Owner's Manual

Heatilator NNXT33-IFT Owner's Manual

Direct vent heater
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CAUTION! Risk of Fire! DO NOT store instruction manuals inside fireplace cavity.
High temperatures could cause a fire.
INSTALLER: Leave this manual with the appliance, not inside the appliance.
CONSUMER: Retain this manual for future reference. Do not store inside the appliance.
Contact your dealer with questions regarding installation, operation or service.
NOTICE: DO NOT discard this manual!
Models:
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 certified kit is used.
Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner's Manual • 2628-981 Rev. D • 1/21
Owner's Manual
Operation and Maintenance
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 flam-
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 fire department.
• Installation and service must be performed
by a qualified installer, service agency, or the
gas supplier.
A barrier designed to reduce the risk of
burns from the hot viewing glass is provided
with this appliance and must be installed for
the protection of children and other at-risk
individuals.
Decorative barrier front must be ordered separately at
time of appliance purchase. See Section 3.A.
WARNING:
DANGER
HOT GLASS WILL
CAUSE BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
1

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Summary of Contents for Heatilator NNXT33-IFT

  • Page 1 Decorative barrier front must be ordered separately at gases, unless a certified kit is used. time of appliance purchase. See Section 3.A. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 2: Welcome

    OWNER’S MANUAL CANADA (Modèle): XXXXXXXXX ALTITUDE:......0-2000 FT....0-4500 FT. MAX. INPUT BTU/h ....xx,xxxx ....xx.xxx Serial: MIN. INPUT BTU/h ....xx.xxx......xx.xxx (Série): ORIFICE SIZE ......#xx DMS ....#xx DMS Xxxx-xxx Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 3: Table Of Contents

    C. Contact Information ......28   = Contains updated information. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 4: Limited Lifetime Warranty

    Firebox and heat exchanger, FlexBurn® System 3 years Lifetime (engine, inner cover, access cover and fireback) None 1 Year All purchased replacement parts Page 1 of 2 4021-645L 10/20 Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 5 EXPRESSED WARRANTY SPECIFIED ABOVE FOR THE APPLICABLE PRODUCT. Some States do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. Page 2 of 2 4021-645L 10/20 Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 6: Product Specific Information

    Installation and service of this appliance should be performed by qualified personnel. Hearth & Home Technologies recommends HHT Factory Trained or NFI certified professionals. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 7: Important Safety And Operating Information

    Figure 3.1 Clear Space Requirement - All Models • Never leave children alone near a hot fireplace, whether operating or cooling down. • Teach children to NEVER touch the fireplace. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 8: General Operating Parts

    30 °F (17 °C) more depending on the thermometer settings and material characteristics being measured. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 9 Suggestions on how to further reduce TV temperatures: Increase “A” dimension. b. Increase “C” dimension, however, increasing “B” dimension beyond maximum recommended typically results in higher temperatures. Figure 3.4 Good Faith TV Guidelines Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 10: Before Lighting Appliance

    • Ensure that the glass is sealed and in the proper position and that the integral barrier is in place. WARNING! Risk of Fire or Asphyxiation! DO NOT op- erate fireplace with fixed glass assembly removed. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 11: Lighting Instructions (Ipi)

    For additional information on operating your Keep burner and control compartment clean. See installation and operating instructions Hearth & Home Technologies fireplace, please 593-913K accompanying appliance. refer to www.hearthnhome.com. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 12: Appliance Break-In

    The Heat-Duct heat management option is available or down to desired flame height. for use with the NNXT-IFT appliances. The Heat-Duct redistributes heat from the fireplace via the furnace ductwork. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 13: Operation During A Power Outage

    • Slide the ON/REMOTE/OFF switch to the ON position. NOTICE: Some functionality will be lost when using battery backup including fan, lights, or any other auxiliary functions that require household 110-120 VAC power. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 14: Detailed Component Operating Instructions - Intellifire Touch

    IFT-RC400 or IFT-RC150. The wired wall - Set the IFT-ECM 3-position selector switch to switch is NOT available if a Power Vent is used. OFF position. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 15 Wi-Fi (Optional) if desired, a Wi-Fi module (IFT-WFM) may be added to allow the appliance to be run via an app. Contact your dealer to order. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 16: Maintenance And Service

    Figure 4.1 Glass Assembly CAUTION! Risk of Burns! The fireplace shall be turned off and cooled before servicing. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 17 If not using your fireplace for an extended period of time (summer months, vacations/trips, etc), to prevent unin- tended operation: • Remove batteries from remote controls. • Unplug the 6 volt adapter plug. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 18: Maintenance Tasks - Qualified Service Technician

    • Remove all foreign objects. • Verify unobstructed air circulation. Figure 4.2 IPI Pilot Flame Pattern Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 19: Frequently Asked Questions And Troubleshooting

    Installer’s Manual for this the touch. appliance. Contact your dealer for additional information regarding operation and troubleshooting. Visit www.heatilator.com to locate a dealer. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 20: Frequently Asked Questions - Intellifire Touch Controls (Ift-Rc400)

    90 seconds. If this failure appliance did not start. Try again period of appliance inactivity. persists, contact dealer for service. by pressing Flame On. Gas control system failure. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 21: Troubleshooting

    If open or shorted, replace valve. Check valve harness wire continuity, if open replace 6-pin harness. Pilot won’t light, there is no noise Spark coil failure. Replace ECM. or spark, 2 Red/2 Green Lockout. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 22 Damaged pilot assembly. tance between tip of sense rod and IFT-ECM connector, should be less than 1 ohm. Replace pilot assembly if damage is de- tected. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 23: Reference Materials

    After a qualified service technician has installed the heat management system, follow the instruction supplied with the kit for operation. Contact your dealer if you have questions. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 24: Service Parts

    NNXT33-IFT, NNXT36-IFT Service Parts B. Service Parts Beginning Manufacturing Date: Sept 2020 Ending Manufacturing Date: Active Log Set Assembly Part number list on following page. 08/20 Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 25 SRV4045-203 Refractory Assembly (Sold as a Set Only) SRV2381-756 Touch Up Paint, Firebox Interior 4021-110 Touch Up Paint Exterior TUP-GBK-12 Additional service parts on following page. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 26 SRV4045-203 Refractory Assembly (Sold as a Set Only) SRV2382-756 Touch Up Paint, Firebox Interior 4021-110 Touch Up Paint Exterior TUP-GBK-12 Additional service parts on following page. Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 27 SRV593-527 Regulator NG NGK-DXV-50 Regulator Propane SRVLPK-DXV-50 **Fuse for battery pack can be sourced locally, not a warranty item. Specs are 250v, 3A fuse, 3/4” long Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...
  • Page 28: Contact Information

     7077122, 7074035, 7098269, 7234932, 7258116, 7322819, 7422011, 7470729, 7726300, 8147240, 9625149 or other U.S. and foreign patents pending. 2000-945E Printed in U.S.A. - Copyright 2021 Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Owner’s Manual • 2628-981 Rev. D • 1/21...

This manual is also suitable for:

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