Heatilator CNXT70PLUS Owner's Manual
Heatilator CNXT70PLUS Owner's Manual

Heatilator CNXT70PLUS Owner's Manual

Fresh air fireplace

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Models:
CNXT70PLUS
Fresh Air Fireplace
• Important operating and
maintenance 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.
Refractory must be ordered separately.
CAUTION
DO NOT DISCARD THIS MANUAL
Read, understand and follow
these instructions for safe
installation and operation.
Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05
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.
In the Commonwealth of Massachusetts:
installation must be performed by a licensed plumber or gas fi tter.
a CO detector shall be installed in the room where the appliance is
installed.
Installation and service of this appliance should be performed
by qualified personnel. Hearth & Home Technologies
suggests NFI certifi ed or factory-trained
professionals, or technicians supervised
by an NFI certifi ed professional.
Installation and Operation
1

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Summary of Contents for Heatilator CNXT70PLUS

  • Page 1 Installation and service of this appliance should be performed by qualified personnel. Hearth & Home Technologies suggests NFI certifi ed or factory-trained professionals, or technicians supervised by an NFI certifi ed professional. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 2 DO NOT REMOVE OR COVER THIS LABEL. VENTED GAS FIREPLACE - NOT FOR USE WITH SOLID FUEL. FOYER À GAZ À ÉVACUATION - NE DOIT PAS ÊTRE UTILISÉ AVEC UN COMBUSTIBLE SOLIDE. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 3: Table Of Contents

    Junction Box Installation ..... . 18 Note: An arrow ( ) found in the text signifi es change in content. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 4: Listing And Code Approvals

    fi bers, plastics, or other material that can ignite and burn, whether fl ame proofed or not, or whether plastered or unplastered shall be considered combustible materials. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 5: Getting Started

    Any such action may cause a fi re hazard. 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). Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 6: Framing And Clearances

    • Clearances and Mantel Projections (Sections 3.C. and 3.D.) • Vent Clearances and Framing (Section 6) 42 in. (1067 mm) 23-1/2 in. (597 mm) Figure 3.1 Appliance Locations Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 7: Construct The Appliance Chase

    If the appli- ance is being installed on a cement slab, a layer of plywood may be placed underneath to prevent conducting cold up into the room. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 8: Clearances

    Measured from top of fireplace opening (in inches) Figure 3.4 Clearances to Mantel Legs or Wall Projections (Accept- able on both sides of opening) Figure 3.3 Clearances to Mantels or Other Combustibles Above Appliance Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 9: Termination Locations

    T h e C N X T 7 0 P L U S w i l l n o t v e n t correctly unless it is connected to the HRV200PLUS. Note: Refer to the HRV200PLUS installation manual for additional installation and venting instructions. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 10: Appliance Preparation

    • Do NOT notch into the framing around the appliance spacers. Failure to keep insulation or other materials away from vent pipe may cause fi re. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 11: Gas Information

    Natural Gas Propane Minimum Inlet Pressure 5.0 in. w.c. 11.0 in. w.c. Maximum Inlet Pressure 7.0 in. w.c. 14.0 in. w.c. Manifold Pressure 3.5 in. w.c. 10.0 in. w.c. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 12: High Altitude Installations

    The CNXT70PLUS is power vented. High altitude gas appli- ance considerations are no longer of concern, as long as the gas appliance is properly installed with the HRV200PLUS properly balanced (refer to HRV200PLUS manual). Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 13: Electrical Information

    Label all wires prior to disconnection when servicing • Wire must have high temperature controls. Wiring errors can cause improper and dangerous insulation. operation. Verify proper operation after servicing. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 14: System Wiring

    This gas appliance requires a 110VAC supply to the gas appliance junction box for operation. A wiring diagram is shown in Figure 8.1. • The CNXT70PLUS is equipped with an intermittent pilot control valve which operates on a 3 volt system. See ignition wiring diagram, Figure 8.1. •...
  • Page 15 OFF/ON EMBER LIGHTS HI/EMBER FIRE Not Used LINE EMBER SOLENOID LED1 PRESS. SW Install Jumper between R2 & 12V. Figure 8.2 CNXT70PLUS & HRV200PLUS Boards Wired Together Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 16 Figure 8.3 Appliance Circuit Board Wiring Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 17: Wall Switch

    Wiring for optional accessories should be done now to avoid reconstruction. These controls must be connected to the ap- pliance using the REM terminals on the control board. A wiring diagram is shown in Figure 8.4. Note: Accessory circulating fans CANNOT be used with the CNXT70PLUS. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 18: Junction Box Installation

    Feed the necessary length of wire through the connector. • Make all necessary wire connections to the box/receptacle and reassemble the box/receptacle to the outer shell. Figure 8.5 Junction Box Detail Figure 8.6 Junction Box Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 19: Finishing

    • Seal joints between the fi nished wall and appliance noncombustible material. top and sides using only a 300° F minimum sealant. Figure 9.3 Noncombustible Facing Diagram Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 20: Appliance Setup

    Place the lava rock around the ember bed and up to front lip of hearth pan. See Figure 10.7. Figure 10.3 Place Right Center Log Figure 10.7 Placing the Lava Rock Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 21: Operating Instructions

    There is a 20 second delay (post-purge). • The HRV200PLUS de-energizes C1, turning the ember bed lights off. • The HRV200PLUS executes a fi ve-minute low speed post purge. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 22 HRV200PLUS de-energizes the R1 terminal terminating burner operation. • There is a 20 second delay (post-purge). • The HRV200PLUS de-energizes C1, turning the ember bed lights off. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 23: Lighting The Appliance

    B. Lighting the Appliance Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 24: After The Appliance Is Lit

    fl uid or similar • Keep furniture, draperies away from liquids in this appliance. appliance. Combustible materials may ignite. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 25: Troubleshooting

    If sooting occurs in the appliance or if combustible material is burned, the pressure switch ports could close and prevent the appliance from operating. Refer to HRV200PLUS manual. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 26: Maintaining And Servicing The Appliance

    • Remove hearth logs by removing screws. Lift out. CNXT70PLUS. • Replace the log assembly by reversing the above steps. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 27: Reference Materials

    1-5/8 in. (162 mm) 6 in. 9-1/4 in. (914 mm) (41 mm) (235 mm) (152 mm) 14-3/8 in. 41 in. (365 mm) (1041 mm) Figure 14.1 Appliance Dimensions Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 28: Service Parts List

    Orifices Orifice DCKVN-NXTPLUS Conversion Kit Propane to Natural Gas FF-NXT70PWT-P Rear Burner Variable Head Dexen Valve Burner Pilot Orifices Orifice DCKVP-NXTPLUS Conversion Kit Natural Gas to Propane FF-NXT70AC Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 29 This page intentionally left blank. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 30: Limited Lifetime Warranty

    Obtain HHT’s consent to any warranty work before the work is done. Additional Information If you would like information on current Heatilator products or want to locate a dealer in your area, call: 1-877-427-8368. Hearth & Home Technologies • CNXT70PLUS • 4034-105 Rev C • 09/05...
  • Page 31: Contact Information

    Hearth & Home Technologies Inc., 1915 W. Saunders Street, Mt. Pleasant, Iowa 52645, phone 1-877-427-8368 Please contact your Heatilator Home Products dealer with any questions or concerns. For the number of your nearest Heatilator Home Products dealer, place call 1-888-427-3973. - NOTES -...

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