Heatilator CNXT70IT Owner's Manual
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Heatilator CNXT70IT Owner's Manual

Heatilator CNXT70IT Owner's Manual

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Models:
CNXT70IT
CNXT70IH
CNXT70ILT
CNXT70ILH
CNXT90IT
CNXT90IH
CNXT90ILT
CNXT90ILH
Direct Vent Gas Appliance
•
Important operating
a n d m a i n t e n a n c e
instructions included.
WARNING
If the information in these instruc-
tions is not followed exactly, a
fi re may result causing property
damage, personal injury, or death.
• 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.
- Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier'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.
Installation and service of this appliance should
be performed by qualifi ed personnel. Hearth &
Home Technologies suggests NFI certifi ed or
factory-trained professionals, or
technicians supervised by an NFI
certifi ed professional.
CAUTION
DO NOT DISCARD THIS MANUAL
Read, understand
•
and follow these
instructions for safe
i n s t a l l a t i o n a n d
operation.
Heatilator • CNXT Series • 4000-011 Rev N • 11/05
Owner's Manual
Leave this manual with
•
party responsible for
use and operation.
WARNING
HOT! DO NOT TOUCH.
SEVERE BURNS MAY RESULT.
CLOTHING IGNITION MAY RESULT.
Glass and other surfaces are hot during
operation and cool down.
•
Keep children away.
•
CAREFULLY SUPERVISE children in same room as
appliance.
•
Alert children and adults to hazards of high
temperatures.
•
Do NOT operate with protective barriers removed or
door open.
•
Keep clothing, furniture, draperies and other
combustibles away.
This appliance has been supplied with an integral barrier to
prevent direct contact with the fi xed glass panel. Do NOT
operate the appliance with the barrier removed.
Contact your dealer or Hearth & Home Technologies if the bar-
rier is not present or help is needed to properly install one.
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 or Standard for
Manufactured Home Installations, ANSI A225.1.
This appliance is only for use with the type(s) of gas indicated
on the rating plate.
Installation and Operation
1

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Summary of Contents for Heatilator CNXT70IT

  • Page 1 Manufactured Home Installations, ANSI A225.1. factory-trained professionals, or technicians supervised by an NFI This appliance is only for use with the type(s) of gas indicated certifi ed professional. on the rating plate. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 2 Your new Heatilator gas appliance will give you years of As the owner of a new appliance, you’ll want to read and durable use and trouble-free enjoyment. Welcome to the carefully follow all of the instructions contained in this owner’s...

  • Page 3: Table Of Contents

    D. High Altitude Installations ..... 33 Note: An arrow ( ) found in the text signifi es change in content. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 4: Listing And Code Approvals

    Fuel Gas Code, ANSI Z223.1-latest edition in the U.S.A. burn, whether fl ame proofed or not, or whether plastered or and the CAN/CGA B149 Installation Codes in Canada. unplastered shall be considered combustible materials. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 5: Getting Started

    Plumb line Safety glasses Level Manometer Voltmeter Tape measure Non-corrosive leak check solution 1/2 - 3/4 in. length, #6 or #8 Self-drilling screws One 1/4 in. female connection (for optional fan). Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 6: Framing And Clearances

    50-5/8 23-1/2 71-5/8 50-5/8 52-5/8 59-3/4 1067 1286 1819 1286 1337 1092 1220 1518 CNXT90I Series 55-1/4 23-1/2 78-1/4 55-1/4 55-1/4 59-3/4 1219 1403 1988 1403 1403 1245 1220 1518 Figure 3.1 Appliance Locations Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 7: Construct The Appliance Chase

    3-1/2 in. (89 mm) min. from fireplace opening to perpendicular wall Figure 3.3 Clearances to Mantel Legs or Wall Projections (Accept- able on both sides of opening) Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 8: Clearances

    (914 mm) Rough Rough Rough Rough Opening Opening Opening Opening Model (Width) (Height) (Depth) (DVP Pipe) CNXT70I 38-3/4 23-1/2 Seroes 1067 CNXT90I 38-3/4 23-1/2 Series 1219 Figure 3.4 Clearances to Combustibles Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 9: Termination Locations

    (minimum) to 18 in. Perpendicular (457 mm) Wall (gas only) Termination Gas Termination Wood & Fuel Oil Termination 6 in. 20 in. (152 mm) (508 mm) Figure 4.3 Multiple Vertical Termination Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 10 O Horizontal clearance between two horizontal termination caps – 12 in. (30 cm) minimum. Figure 4.4 Minimum Clearances for Terminations CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 11: Vent Information And Diagrams

    3 to 24 and 8-1/2 in. vertical run. A length of straight pipe is allowed between two 45° elbows (see Figure 5.1). DVP Pipe (see chart) Figure 5.2 DVP Pipe Effective Length Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 12: Vent Diagrams

    24 in./610 mm 25 ft/7.62 m 25 ft/7.62 m 25 ft/7.62 m * You may install the elbow directly on top of the appliance Figure 5.3 Top Vent-Horiztonal Termination-One Elbow Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 13 See Figure 5.6 for information about installing elbows horizontally. Table 5.2 min. max. max. 12 in./305 mm 24 ft/7.32 m 19 ft/5.79 m Installed Vertically Figure 5.5 Three Vertically Installed 90° Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 14 24 in./610 mm 25 ft/7.62 m 25 ft/7.62 m 25 ft/7.62 m 25 ft/7.62 m 25 ft/7.62 m Installed Vertically Installed Horizontally Figure 5.6 Two or Three Elbows, some Horizontal Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 15 12 ft (3.66 m) min. 60 ft (18.29 m) max. Maximum horizontal run is 100% of vertical, but cannot exceed 26 ft (7.92 m) Figure 5.8 Vertical Termination - Two Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 16 60 ft (18.29 m) max. Figure 5.9 Vertical Termination - Three Elbows (some horizontal) Rear Vent—Horizontal Termination—No Elbow 18 in. (457 mm) max. Figure 5.10 Vertical Termination - No Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 17 4 ft/1.22 m 10 ft/3.05 m 2 ft/.61 m 4 ft/1.22 m 10 ft/3.05 m 3 ft/.91 m 4 ft/1.22 m 10 ft/3.05 m Figure 5.12 Horizontal Termination - Two Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 18 4 ft/1.22 m 6 ft/1.83 m 1ft/.31 m 4 ft/1.22 m 6 ft/1.83 m 2 ft/.61 m 4 ft/1.22 m 6 ft/1.83 m Figure 5.13 Vertical Termination - Three Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 19 6 ft (1.83 m) max. 60 ft (18.29 m) max. Maximum horizontal run is 100% of vertical, but cannot exceed 26 ft (7.92 m) Figure 5.15 Vertical Termination - Two Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 20 12 ft (3.66 m) min. 60 ft (18.29 m) max. Maximum horizontal run is 100% of vertical, but can- not exceed 26 ft (7.92 m). Figure 5.16 Vertical Termination - Three Vertical Elbows Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 21: Vent Clearances And Framing

    If the hole being penetrated is surrounded by non- combustible materials such as concrete, a hole with diameter 1 in. greater than the pipe is acceptable. Figure 6.3 Exterior Wall Hole Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 22: Vertical Penetration Framing

    Bend tabs in around pipe 3 fasteners per side Attic insulation shield Attic insulation shield installed below ceiling. installed above ceiling. Figure 6.5 Installing the Attic Insulation Shield Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 23: Appliance Preparation

    Remove four screws holding the plate surrounding the fl ue. See Figure 7.2. Remove the plate. Inner Collar Plate Figure 7.5 Remove Screws from Inner Collar Figure 7.2 Remove Plate Screws Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 24 Use four screws to hold plate and white gasket. the plate in place. See Figure 7.11. Figure 7.11 Place Plate on Rear of Appliance Inner Cover Plate Figure 7.8 Remove Inner Cover Plate Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 25 Locate the cover plate removed in the fi rst step and place on top of top pan heat shield. Place four screws to hold this plate in place. See Figure 7.14. Figure 7.17 Completed Conversion Figure 7.14 Cover Plate Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 26: Securing And Leveling The Appliance

    CANNOT be changed at a later time. Nailing Flanges (both sides) Figure 7.18 Proper Positioning, Leveling and Securing of an Appliance CAUTION Do NOT notch into the framing around the appliance spacers. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 27: Installing Vent Pipe

    fl ue at the horizontal elbow joint to prevent CORRECT INCORRECT the elbow from rotating. Use screws no longer than 1 in. (25 Figure 8.4 Seams mm). If predrilling holes, do NOT penetrate inner pipe. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 28 If the slip section is too long, the inner and outer fl ues of the slip section can be cut to the desired length. Figure 8.7 Screws into Slip Section Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 29: Disassemble Vent Sections

    Improper support may allow vent to sag or Figure 8.9 Securing Horizontal Pipe Sections separate. Figure 8.10 Rotate Seams for Disassembly Figure 8.11 Align and Disassembly Vent Sections Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 30: Install The Heat Shield And Horizontal Termination Cap

    (pipe section) to properly space it from the pipe Note: Where required, an exterior wall fl ashing is available. section (see Figure 8.12). When penetrating a brick wall, a brick extension kit is available for framing the brick. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 31: Install Roof Flashing And Vertical Termination Cap

    Screws the outer fl ue of the pipe (see Fig- ure 8.14). Caulk Figure 8.14 Secure with Screws Figure 8.16 Assembling the Storm Collar Around the Pipe Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 32: Gas Information

    Manifold Pressure 3.5 in. w.c. 10.0 in. w.c. • Incoming gas line should be piped into the valve compartment and connected to the 1/2 in. connection on the manual shutoff valve. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 33: High Altitude Installations

    Fire Risk Do NOT change the valve settings. • This valve has been preset at the factory. • Changing valve settings may result in fi re hazard or bodily injury. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 34: Electrical Information

    • Keep wire lengths short as possible by removing any excess wire length. • Low voltage and 110 VAC voltage cannot be shared within the same wall box. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 35: Wall Switch And Dashboard Wiring

    Find the black wire from the thermodisc and connect to the black wire from the variable speed control. • Connect the white wire from the junction box to the white wire from the variable speed control. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 36: Junction Box Installation

    (1/4 in. male) as shown. Figure 10.3 Junction Box Wired to Wall Switch or BC10 Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 37: Finishing

    Top and Side Seal Joint • Seal joints between the fi nished wall and appliance top and sides using only a 300° F minimum sealant. Figure 11.3 Noncombustible Facing Diagram Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 38: Appliance Setup

    If any wires are exposed, tuck them behind the dashboard. • See Figure 10.1 for dashboard switch wiring. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 39: Log Assembly

    See Figure 12.4. Figure 12.6 Set Right Center Log Figure 12.4 Set Left Front Log Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 40 (natural gas). See Figure 12.8. If your appliance is set up for LP gas, this log will not sit on the back log. Figure 12.8 Set Left Top Log (Natural Gas Shown) Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 41: Glass Assembly

    Close the access panel and reinstall the upper grille. Closed Latches (both bottom and top) Glass Assembly Figure 12.11 Air Shutter Figure 12.10 Glass Assembly Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 42: Operating Instructions

    Immediately call a qualifi ed service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 43: Lighting The Appliance

    * For U.S. only! NATURAL GAS Due to high surface temperatures, keep children, clothing and furniture away. Keep burner and control compartment clean. See installation and operating instructions accompanying the appliance. 33631D Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 44: After The Appliance Is Lit

    6 Is it normal to see the pilot fl ame 6 In an Intellifi re ignition system it is normal to see the pilot fl ame, but it should burn continually? turn off when ON/OFF switch is turned off. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 45: Troubleshooting

    “I” terminal module must be replaced. If there is a spark at “I” terminal, module is fi ne. Inspect pilot assembly for shorted sparker wire or cracked insulator around electrode. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 46 Verify module is securely grounded to metal chassis of appliance. Module voltage output/ Verify battery voltage is at least 2.7 volts. Replace batteries if voltage is below valve/pilot solenoid ohms 2.7. readings. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 47: Maintaining And Servicing The Appliance

    A i r p a s s a g e w a y s , g r i l l e s , c o n t r o l compartment. • Burner, burner ports. Risk of: • Fire • Delayed ignition or explosion • Exposure to combustion fumes • Odors Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 48: Maintenance And Service Tasks

    Verify operation of remote. Replace batteries in remote transmitters and battery-powered receivers. Verify batteries have been removed from battery back-up in IPI systems to prevent premature battery failure or leaking. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 49: Reference Materials

    (38 mm) 9-1/4 in. (152 mm) (235 mm) 14-3/8 in. (365 mm) Model # 26-1/2 in. 24-1/2 CNXT70I (673 mm) Series 1041 30-1/2 CNXT90I Series 1194 1067 Figure 16.1 Appliance Dimensions Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 50: Vent Components Diagrams

    10 in. 4 in. 5 in. DVP-AD1 Adapter 12 in. 24 in. 5 in. 4 in. 5 in. DVP-HVS DVP-AS DVP-AD2 Vent Support Attic Shield Adapter Figure 16.2 DVP Vent Components Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 51 6-3/4 in. 10-5/8 in. 14 in. DVP-TRAP SERIES Horizontal Termination Cap DVP-TRAP1 DVP-TRAP2 Horizontal Termination Cap Kit Horizontal Termination Cap Kit DVP-TRAPK1 DVP-TRAPK2 Horizontal Termination Cap Kit Horizontal Termination Cap Kit Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 52 Trap Cap Brick Extension DVP-TVHW Vertical Termination Cap (High wind) 11-5/8 in. 13-7/8 in. 9-1/2 in. 12-1/8 in. 7-1/8 in. 14 in. 5-3/4 in. COOL-ADD DRC-RADIUS Cap Shield Cap Shield Heatilator • CNXT Series • 4000-011 Rev N • 11/05...
  • Page 53 This page intentionally left blank. Heatilator • CNXT Series • 4000-011 Rev N • 11/05...

  • Page 54: Service Parts List

    If the Heatilator Appliance is found to be defective in either material or workmanship within one year of the date of original installation, HHT will provide replacement parts at no charge and pay reasonable labor and freight costs, and is for the period of one year following the date of original installation of the Appliance.

  • Page 55: Contact Information

    1915 W. Saunders Street Mt. Pleasant, Iowa 52641 www.heatilator.com Please contact your Heatilator dealer with any questions or concerns. For the number of your nearest Heatilator dealer, place call 1-800-927-6841. - NOTES - CAUTION DO NOT DISCARD THIS MANUAL Read, understand Leave this manual with •...

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