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Models:
CNXT4236IT-C
CNXT4842IT-C
CNXT4236IH-C CNXT4842IH-C
CNXT4236ILT-C CNXT4842ILT-C
CNXT4236ILH-C CNXT4842ILH-C
• Important operating
a n d m a i n t e n a n c e
instructions included.
WARNING: If the information in these
instructions is not followed exactly, a fi re
or explosion 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 suppli-
er'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.
In the Commonwealth of Massachusetts installation must be
performed by a licensed plumber or gas fi tter.
See Table of Contents for location of additional Commonwealth
of Massachusetts requirements.
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.
Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14
NOTICE
DO NOT DISCARD THIS MANUAL
• Read, understand and follow
these instructions for safe
installation and operation.
Owner's Manual
Installation and Operation
• Leave this manual with
party responsible for use
and operation.
WARNING
HOT GLASS WILL
DO NOT TOUCH GLASS
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
A barrier designed to reduce the risk of burns
from the hot viewing glass is provided with this
appliance and shall be installed.
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.
CAUSE BURNS.
UNTIL COOLED.
1

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Summary of Contents for Heatilator CNXT4236IT-C

  • Page 1 Technologies suggests NFI certifi ed or factory trained appliance is not convertible for use with other professionals, or technicians supervised by an NFI gases, unless a certifi ed kit is used. certifi ed professional. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 2: Congratulations

    00,000 00,000 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 • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 3: Table Of Contents

    E. Junction Box Installation......55 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 4 D. Contact Information ......77  = Contains updated information. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 5: Limited Lifetime Warranty

    3 years Firebox and heat exchanger Lifetime All replacement parts 90 Days beyond warranty period See conditions, exclusions, and limitations on next page. 4021-645F 02-18-13 Page 1 of 2 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 6 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. 4021-645F 02-18-13 Page 2 of 2 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 7: Listing And Code Approvals

    • 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. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 8: Requirements For The Commonwealth Of Massachusetts

    VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB- of the installation. STRUCTIONS”. See Gas Connection section for additional Common- wealth of Massachusetts requirements. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 9: User Guide

    Figure 2.1 General Operating Parts protection lockout feature. • Keep remote controls out of reach of children. • Never leave children alone near a hot fi replace, whether operating or cooling down. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 10: Fan Kit

    Contact your dealer or Hearth & Home Technologies if the barrier is not present or help is needed to properly install one. For more information refer to the instructions supplied with your decorative door or front. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 11: Control Module Operation

    WARNING! Risk of Fire or Asphyxiation! DO NOT op- SWITCH erate fi replace with fi xed glass assembly removed. FLAME HI/LOW NG/LP GAS-TYPE STATUS SWITCH INDICATOR LED SELECTOR SWITCH Figure 2.3 Control Module Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 12: Lighting Instructions (Ipi)

    For additional information on operating your Hearth & Home Technologies fi replace, please refer to www.fi replaces.com. Final inspection by Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 13: After Fireplace Is Lit

    Some optional control systems available with IPI models may allow pilot fl ame to continually? remain lit. In a standing pilot system the pilot will always stay on. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 14: Maintenance And Service

    • Inspect draft shield to verify it is not damaged or missing. Hold glass in place with one hand and secure glass latches with the other hand. • Reinstall door or decorative front. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 15: Maintenance Tasks-Qualifi Ed Service Technician

    Use caution when cleaning these areas. Screw tips that have penetrated the sheet metal are sharp and should be avoided. • Remove all foreign objects. • Verify unobstructed air circulation. Figure 3.1 IPI Pilot Flame Patterns Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 16: Refractory, Logs/Grate And Valve Assembly Removal

    See Figure 3.6 Figure 3.3 Side Refractory Removal Figure 3.6 Remove Screws from Front Tab Figure 3.4 Back Refractory Removal Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 17 Figure 3.11 Valve Assembly Removal Figure 3.8 Remove Screws from Burner Assembly Rear Corners 8. Remove burner skirt by removing 4 screws. See Figure 3.9. Figure 3.9 Remove Burner Skirt Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 18: Burner Identifi Cation/Verifi Cation

    fireplace style (for CD models only) CD4236IR-C (NG) CD4236IR-C (LP) CNXT4236IH/T-C (NG & LP) CD4842IR-C (NG) CD4842IR-C (LP) CNXT4842IH/T-C (NG & LP) Figure 3.12 Burner identifi cation Examples Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 19: Installer Guide

    FRAMING HEADED OFF IN CEILING JOISTS (SECTION 8.C) OPTIONAL WALL SWITCH (SECTION 12.C) MANTEL AND MANTEL LEG (SECTION 5.D) SURROUND HEARTH EXTENSION GAS LINE (SECTION 11) Figure 4.1 Typical System Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 20: Design And Installation Considerations

    Flat blade screwdriver 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 optional fan). Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 21: Framing And Clearances

    CNXT4236 Series Mantel Projections 1295 1067 1829 1438 55-7/8 61-1/2 19-3/4 See Section D. CNXT4842 Series Mantel Projections 1419 1245 2007 1562 Figure 5.1 Appliance Locations - CNXT Models Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 22: Constructing The Appliance Chase

    1019 1245 * Adjust framing dimensions for interior sheathing (such as sheetrock) C** Add 12 inches for rear venting with one 90º elbow. Figure 5.2 Clearances to Combustibles Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 23: Clearances

    1 in. (25 mm) min. to perpendicular wall 3-1/2 in. (89 mm) min. from fireplace opening to perpendicular wall Figure 5.4 Mantel Leg or Wall Projections (Acceptable on both sides of opening) Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 24: Termination Locations

    Over 16/12 to 18/12 ..........7.0 Over 18/12 to 20/12 ..........7.5 Over 20/12 to 21/12 ..........8.0 * 3 foot minimum in snow regions Figure 6.1 Minimum Height From Roof To Lowest Discharge Opening Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 25 2 sides beneath the fl oor. venting system does not meet these requirements. • Vinyl protection kits are suggested for use with vinyl siding. Figure 6.3 Minimum Clearances for Termination Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 26: Vent Information And Diagrams

    DVP6 Effective DVP12 Height/Length DVP24 DVP36 DVP48 1219 DVP6A 3 to 6 76 to 152 DVP12A 3 to 12 76 to 305 Figure 7.2 DVP Pipe Effective Length Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 27: Vent Diagrams

    (6 mm) 25 ft max. (7.62 m) Top Vent—Horizontal Termination—Two 45º Elbows Installation requirements to replace the fi rst 90º elbow with two 45º elbows:  Figure 7.3 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 28 1.2 m 20 ft. 6.1 m 6 ft. 1.9 m 25 ft. 7.6 m = 40 ft. (12.2 m) Maximum = 25 ft. (7.6 m) Maximum Figure 7.4 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 29 3.1 m 20 ft. 6.1 m = 40 ft. (12.2 m) Maximum = 20 ft. (6.1 m) Maximum = 1 ft. (305 mm) Minimum INSTALLED HORIZONTALLY Figure 7.5 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 30 914 mm 16 ft * 4.9 m* 3 ft. 914 mm 14 ft.* 4.3 m* = 20 ft. (6.1 m) Maximum = 40 ft. (12.2 m) Maximum Figure 7.6 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 31 Figure 7.9 Remove One Side Refractory 4. Remove top by gently lowering toward side just removed and gently twisting out. See Figure 7.10. Figure 7.7 Figure 7.10 Remove Top Refractory Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 32 5. Break the fl ue restrictor into two pieces. Do this by bending the part back and forth until it breaks See Figure 7.12. BREAK HERE Figure 7.12 Flue Restrictor Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 33 1.2 m 20 ft. 6.1 m = 60 ft. (18.3 m) Maximum *No specifi c restrictions on this value EXCEPT cannot exceed 60 ft (18.3 m) Figure 7.15 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 34 4 ft. 1.2 m 18 ft. 5.5 m 18 ft. 5.5 m = 20 ft. (6.1 m) Maximum = 60 ft. (18.3 m) Maximum INSTALLED HORIZONTALLY Figure 7.16 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 35: Rear Vent - Horizontal Termination

    = 18 in. (457 mm) Maximum No Elbow Figure 7.17 One 45º Elbow Do not use a 45º elbow in corner installations. Use two 90º elbows instead. Figure 7.18 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 36 17 ft. 5.2 m 20 ft.* 6.1 m* = 40 ft. (12.2 m) Maximum = 3 ft. (914 mm) Maximum = 20 ft (6.1 m) Maximum Figure 7.19 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 37 5.2 m 20 ft. 6.1 m = 40 ft. (12.2 m) Maximum = 3 ft. (914 mm) Maximum = 20 ft. (6.1 m) Maximum INSTALLED HORIZONTALLY Figure 7.20 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 38 12 ft. 3.7 m 8 ft. 2.4 m 15 ft. 4.6 m = 40 ft. (12.2 m) Maximum = 8 ft. (2.4 m) Maximum INSTALLED HORIZONTALLY Figure 7.22 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 39 = 40 ft. (12.2 m) Maximum *No specifi c restrictions on this value EXCEPT cannot exceed 40 ft. (12.2 m) Maximum = 8 ft. (2.4 m) Maximum INSTALLED Figure 7.24 HORIZONTALLY Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 40: Vent Clearances And Framing

    * Shows center of vent framing hole for top or rear venting. The center of the hole is one (1) in. (25.4 mm) above the center of the horizontal vent pipe. Figure 8.2 Wall Penetration Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 41: Install The Ceiling Firestop

    INSTALL ATTIC INSULATION SHIELDS BEFORE OR AFTER INSTALLATION OF VENT SYSTEM CEILING FIRESTOP CEILING FIRESTOP INSTALLED BELOW CEILING INSTALLED ABOVE CEILING Figure 8.4 Installing the Attic Shield Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 42: Installing The Optional Heat-Zone Gas Kit

    • Determine the location for the air register/fan housing assembly. Reference the Heat-Zone® Gas kit instructions for the remaining installation steps. HEAT-ZONE ® ATTACHES HERE Figure 8.5 Heat-Zone Gas Cover Plate ® Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 43: Appliance Preparation

    CNXT4842IH-C models. Overheating will occur. Figure 9.5 Remove the insulation from the outer vent pipe. For rear venting there is no insulation in the outer vent pipe. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 44: Rear Vent

    fi rebox top on CNXT4842IT-C and CNXT4842IH-C models. Overheating will occur. Figure 9.8 Cut the metal retaining band and fold the sides out. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 45: Installing The Non-Combustible Board

    • Bend out nailing tabs on each side. Figure 9.14 Proper Positioning and Securing of an Appliance • Place the appliance into position. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 46: Installing Vent Pipe (Dvp And Slp Pipe)

    fl ue at the horizontal elbow joint to prevent the elbow from rotating. Use screws no longer than 1/2 in. (13 mm). If predrilling screw holes, DO NOT penetrate inner pipe. INCORRECT Figure 10.4 Seams Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 47: Assemble Vent Sections (Slp Pipe Only)

    • Only outer pipes are sealed, sealing the inner fl ue is not then rotate counterclockwise to lock required. Figure 10.5 Adding Venting Components • All unit collar, pipe, slip section, elbow and cap outer fl ues shall be sealed. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 48: Secure The Vent Sections

    Figure 10.10 Rotate Seams for Disassembly connection point to appliance. 120º Figure 10.11 Align and Disassemble Vent Sections Figure 10.8 Securing Vertical Pipe Sections 120º Figure 10.9 Securing Horizontal Pipe Sections Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 49: Install Decorative Ceiling Components (Slp Only)

    fl aps and the roof. Figure 10.13 WARNING! Risk of Fire! Clean out ALL materials from inside the support box and complete the vertical vent run and termination. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 50: Install Metal Roof Flashing

    • Caulk the perimeter of the fl ashing where it contacts the roof surface. See Figure 10.15. • Caulk the overlap seam of any exposed pipe sections that are located above the roof line. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 51: Install Vertical Termination Cap

    • Once the pipe section and the termination cap have been connected, slide the wall thimble up to the interior wall surface and attach with screws provided. See Figure 10.18. Figure 10.18 Wall Thimble Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 52: Install Horizontal Termination Cap (Dvp And Slp Pipe)

    DVP-TRAP1 can adjust 1-1/2 in. (3-1/8 to 4-5/8 in.) DVP-TRAP2 can adjust 4 in. (5-3/8 to 9-3/8) DVP-HPC1 can adjust 2-1/8 in. (4-1/4 to 6-3/8) DVP-HPC2 can adjust 4-1/8 in. (6-3/8 to 10-1/2) Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 53: Gas Information

    fl exible gas connector are connected to the 1/2 in. (13 mm) control valve inlet. • If substituting for these components, please consult local codes for compliance. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 54: Electrical Information

    BOX (120V) 3 PRONG 110VAC MODULE AUX200 MODULE ORANGE WHITE FLAME TO JUNCTION MODULATION BOX 120VAC BATTERY PACK 6V DC (AA X 4) Figure 12.1 IPI Wiring Diagram Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 55: Electrical Service And Repair

    NOTICE: DO NOT wire 110-120 VAC to wall switch. • Make all necessary wire connections to the junction box/ receptacle and reattach the junction box/receptacle to the Figure 12.2 Junction Box Detail outer shell. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 56: Finishing

    1 in. (25 mm) min. to perpendicular wall 3-1/2 in. (89 mm) min. from fireplace opening to perpendicular wall Figure 13.2 Mantel Leg or Wall Projections (Acceptable on both sides of opening) Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 57: Appliance Setup

    (shaded areas) placement on sides and front sides and front of hearth pan. of hearth pan. Figure 14.2 Placement of Embers Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 58: Place The Lava Rock And Vermiculite

    Spread vermiculite in a light, even pattern on top of lava rock. It is not necessary to use the entire bag. Save the remaining amount for future use. Figure 14.4 Placement of Vermiculite Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 59: Install The Log Assembly

    FRONT FACE FRONT FACE Figure 2. Left Log and Right Log Reference Points Figure 3. Left Log in Proper Position Figure 4. Left and Right Log in Proper Position Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 60: Fixed Glass Assembly

    • Install optional trim kits and/or surrounds using the instructions included with the accessory. • Use non-combustible materials to cover the gap between the sheet rock and the appliance (when applicable to the model). Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 61: Troubleshooting

    D. Pilot valve solenoid. 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 • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 62 ON position. If there is no spark at “I” terminal module must be replaced. If there is a spark at “I” terminal, module is fi ne. Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 63: Reference Materials

    Millimeters Location Inches Millimeters 1041 11-11/16 36-1/8 33-1/2 28-1/2 14-1/4 34-5/8 2-1/4 8-1/2 2-7/8 9-11/16 26-7/8 8-1/2 6 dia 39-7/8 1013 40-7/8 1038 Figure 16.1 Appliance Dimensions-CNXT4236 Models Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 64 Inches Millimeters Location Inches Millimeters 1219 11-11/16 43-1/8 1096 34-3/8 35-1/2 17-3/4 36-5/8 2-3/8 8-1/2 2-7/8 9-15/16 8-1/2 28-7/8 42-7/8 1089 41-7/8 1064 Figure 16.1 Appliance Dimensions-CNXT4842 Models Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 65: Vent Components Diagrams

    14 in. (356 mm) 5 in. 12 in. (127 mm) (305 mm) 6 in. (152 mm) DVP-HVS (Vent Support) DVP-WS (Wall Shield Firestop) Figure 16.2 DVP vent components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 66 79 mm 117 mm Length DVP-TRAP 5-3/8 in. 9-3/8 in. Trap2 Horizontal Termination Cap 137 mm 238 mm DVP-TRAP2 DVP-TRAP1 DVP-TRAPK2 DVP-TRAPK1 DVP-HPC1 DVP-HPC2 Figure 16.3 DVP vent components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 67 13-7/8 in. 9-1/2 in. (352 mm) (241 mm) 26 in. 660 mm 14 in. (356 mm) DVP-HSM-B DRC-RADIUS Extended Heat Shield Cap Shield Figure 16.4 DVP vent components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 68 1 in. (25 mm) (222 mm) 7-3/4 to 10-3/8 in. (197 to 264 mm) 1-5/8 in. (41 mm) DVP-FBHT FireBrickTermination Cap DVP-HPC High Performance Cap Figure 16.5 DVP vent components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 69 SS termination caps on top vented fi replaces, a 6 inch minimum vertical vent section is required before installing fi rst elbow. DVP-HRC-SS DVP-HRC-ZC-SS HORIZONTAL TERMINATION CAP Figure 16.6 Vent Components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 70 8-11/16 in. 1-1/2 in. 12 in. 5-1/2 in. 220 mm 38 mm 146 mm 305 mm SLP-WS SLP-FS Wall Shield Firestop Ceiling Firestop Figure 16.7 SLP Series Vent Components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 71 26 in. 117 mm 102 mm 660 mm 5-1/16 in. 8-1/8 in. 128 mm 206 mm DVP-2SL DVP-HSM-B Adapter Extended Heat Shield Figure 16.8 SLP Series Vent Components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 72 Termination Cap LDS33/LDS46 Decorative Shroud PVK-80 Catalog # (Not compatible with Intellifire Plus™.) LDS33 (For use with IPI and DSI appliances only.) LDS46 1219 1829 Figure 16.9 Vent Components Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...
  • Page 73: Service Parts

    5890485, 5941237, 6006743, 6019099, 6053165, 6145502, 6374822, 6484712, 6601579, 6769426, 6863064, 7077122, 7098269, 7258116, 7470729, 8147240 or other U.S. and foreign patents pending. 2000-945B Printed in U.S.A. - Copyright 2014 Heatilator • CNXT4236IT-C, CNXT4842IT-C, CNXT4236IH-C, CNXT4842IH-C • 2208-900 Rev. M • 7/14...

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