Heat-N-Glo CFX-DA - User Manual

To Next Page

- 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.

• 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 fire department.

- Installation and service must be performed by a

qualified installer, service agency, or the gas

supplier.

Model:

CFX-DA

Installers Guide

WARNING: IMPROPER INSTALLA-

TION, ADJUSTMENT, ALTERATION,

SERVICE OR MAINTENANCE CAN

CAUSE INJURY OR PROPERTY DAM-

AGE. REFER TO THIS MANUAL. FOR

ASSISTANCE ORADDITIONAL INFOR-

MATION CONSULT A QUALIFIED IN-

STALLER, SERVICE AGENCY, OR THE

GAS SUPPLIER.

Underwriters

Laboratories Listed

514-900G 9/02

READ THIS MANUAL BEFORE INSTALLING OR

OPERATING THIS APPLIANCE. THIS INSTALLERS

GUIDE MUST BE LEFT WITH APPLIANCE FOR

FUTURE REFERENCE.

Please contact your Heat-N-Glo dealer with any ques-

tions or concerns. For the number of your nearest

Heat-N-Glo dealer, please call 1-888-427-3973.

Heat-N-Glo, a division of Hearth Technologies Inc.

20802 Kensington Boulevard, Lakeville, MN 55044

WARNING: IF THE INFORMATION

IN THESE INSTRUCTIONS IS NOT

FOLLOWED EXACTLY, A FIRE OR

EXPLOSION MAY RESULT CAUS-

ING PROPERTY DAMAGE, PER-

SONAL INJURY, OR DEATH.

This product is covered by one or more of the following patents: (United States) 4,112,913; 4,408,594; 4,422,426; 4,424,792; 4,520,791; 4,793,322;

4,852,548; 4,875,464; 5,000,162; 5,016,609; 5,076,254 5,191,877; 5,218,953; 5,328,356; 5,429,495; 5,452,708; 5,542,407; 5,613,487; (Australia)

543790; 586383; (Canada) 1,123,296; 1,297,746; 2,195,264; (Mexico) 97-0457; (New Zealand) 200265; or other U.S. and foreign patents pending.

Main Page

Need help?

Do you have a question about the Heat-N-Glo CFX-DA and is the answer not in the manual?

The device is a Heat-N-Glo CFX-DA direct vent gas fireplace heater, designed for residential use. It operates by siphoning all combustion air from outside the building and expelling all exhaust gases to the outside, ensuring clean indoor air. This model is certified by Underwriters Laboratories and conforms to ANSI Z21.50・CGA2.22 standards.

Function Description:

The CFX-DA is a gas-fired heating appliance that provides warmth and aesthetic appeal through a visible flame. It utilizes an Intermittent Pilot Ignition (IPI) gas control system, which includes a 3V control valve, an electronic module, and a spark ignitor/flame sensor. The unit is designed to operate from a wall switch or a remote control, offering convenient operation. Combustion air is supplied via an AK-CFX outside air kit, which can extend up to 40 feet from the fireplace to the inlet cap. The exhaust gases are vented directly to the outside through a D-Series direct vent system, which can be configured with various components like vertical and horizontal pipes, elbows, and termination caps.

Important Technical Specifications:

Model: CFX-DA
Type: Direct Vent Gas Fireplace Heater
Certification: Underwriters Laboratories, ANSI Z21.50・CGA2.22
Dimensions (Fireplace Unit):
- Width: 38 3/4 inches (984mm)
- Height: 43 1/2 inches (1105mm)
- Depth: 22 1/8 inches (562mm)
Vent System: D-Series Direct Vent Components (5-inch inner pipe / 8 5/8-inch outer pipe)
Vent Pipe Overlap: 1-3/8 inches (34.93 mm) at each joint
Maximum Vertical Vent Run: 40 feet (12.4m)
Maximum Horizontal Vent Run (with up to eight elbows): 50 feet
Gas Type: Natural Gas or Propane
Gas Inlet Pressure (Natural Gas): Minimum 5.0 in. w.c., Maximum 14.0 in. w.c.
Gas Inlet Pressure (Propane): Minimum 11.0 in. w.c., Maximum 14.0 in. w.c.
Manifold Pressure (Natural Gas): 3.5 in. w.c.
Manifold Pressure (Propane): 10.0 in. w.c.
Electrical Requirements: Continuous 110-120 VAC service wired directly to the fireplace junction box. Ignition module, valve, pilot, and wall switch operate on 3 volts.
Glass Specifications: 24 5/16" x 34 9/16" TEMPERED glass, tested and certified to ANSI Z97.1-1984 and CPSC 16 CFR 1202.
Clearances to Combustible Materials (Fireplace):
- Glass Front: 36 inches (914mm)
- Floor: 0 inches (0mm)
- Rear: 1/2 inch (13mm)
- Sides: 1/2 inch (13mm)
- Top: 4 inches (102mm)
- Ceiling: 31 inches (787mm) (measured from top of unit, excluding standoffs)
Clearances to Combustible Materials (Vent Pipe):
- Vertical Sections: 1 inch (25mm)
- Horizontal Sections (Top): 3 inches (75mm)
- Horizontal Sections (Bottom/Sides): 1 inch (25mm)
- At Wall Firestops (Top): 2 1/2 inches (63.7mm)
- At Wall Firestops (Bottom): 1/2 inch (13mm)
- At Wall Firestops (Sides): 1 inch (25mm)
Vent Termination Clearances:
- Bottom of cap: Minimum 12 inches (305mm) above ground level (grade)
- Top of cap: Minimum 18 inches (457mm) below combustible material (e.g., deck)
- Side of cap: Minimum 6 inches (152mm) away from a parallel outside wall
- Minimum 3 feet (U.S.A.) / 6 feet (Canada) between intake and exhaust termination caps.
- Minimum 12 inches (U.S.A.) / 12 inches (Canada) clearance above grade, veranda, porch, deck or balcony.
- Minimum 12 inches (U.S.A.) / 12 inches (Canada) clearance to window or door that may be opened, or to permanently closed window.
- Minimum 18 inches vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (60 cm) from the center-line of the terminal.
- Minimum 9 inches clearance to unventilated soffit.
- Minimum 6 inches clearance to outside/inside corner.
- Minimum 3 feet (Canada) not to be installed above a gas meter/regulator assembly within 3 feet (90cm) horizontally from the center-line of the terminal.
- Minimum 3 feet (U.S.A.) / 6 feet (Canada) clearance to service regulator vent outlet and electric service.
- Minimum 9 inches (U.S.A.) / 12 inches (Canada) clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance.
- Minimum 3 feet (U.S.A.) / 6 feet (Canada) clearance to a mechanical air supply inlet.
- Minimum 7 feet (U.S.A.) clearance above paved sidewalk or a paved driveway located on public property.
- Minimum 18 inches clearance under veranda, porch, deck or balcony.
- Minimum 6 inches / 12 inches (vinyl) clearance for non-vinyl/vinyl soffit and siding.
- Minimum 18 inches / 42 inches (vinyl) clearance for non-vinyl/vinyl soffit and siding.
- Minimum 8 feet clearance for non-vinyl/vinyl soffit and siding.
- 30" minimum for vinyl clad soffits.

Usage Features:

Installation Flexibility: Can be installed in a bedroom or bed-sitting room in the U.S.A. and Canada.
High Altitude Operation: Input rating may need to be decreased for elevations above 2,000 feet (U.S.A.) or between 2,000 and 4,500 feet (Canada). Consult local gas utility for proper orifice size.
Aesthetic Customization: Allows for installation of optional marble, brass, brick, tile, or other non-combustible trim surround kits. Hearth extensions are optional for aesthetic reasons.
Safety Features: Includes a heat shield for vinyl siding protection, and specific clearances to combustibles must be maintained. The glass door assembly must be in place and sealed for safe operation.

Maintenance Features:

Annual Servicing: A qualified service technician should perform an appliance check-up at the beginning of each heating season.
Ember Material Replacement: Annually, brush away loose ember material and replace with new dime-size pieces of Golden Ember (GE-93) and Glowing Ember (050-721).
Burner and Controls Cleaning: Annually, brush or vacuum the control compartment, fireplace logs, and burner areas.
Flame Pattern Check: Periodically, visually check flame patterns to ensure they are steady and not lifting or floating. Flame sensor tips should be covered with flame.
Vent System Inspection: Before initial use and at least annually, inspect the external vent cap for debris and the entire vent system for proper function.
Glass Door Cleaning: After the initial 3-4 hours of use, and as necessary thereafter, clean the glass door. DO NOT handle or clean the door when it is hot, and DO NOT use abrasive cleaners.
Ignitor Air Deflector Shield Adjustment: The shield needs to be field-adjusted to contact the back of the fiberbox after installation.
Initial Start-up Procedure: Run the fireplace for 3-4 hours on initial start-up, then turn it off, let it cool, remove and clean the glass. Replace the glass and run for an additional 8 hours to cure chemicals in paint and logs.