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VENT-FREE FIREPLACE SYSTEMS
INSTALLATION AND OPERATING INSTRUCTIONS
MODELS
DFX24C
DBX24C*
DFX32C
Natural Gas or
Propane/LPG
Manual or Milli-Volt
*Thermostat Control Only
WARNINGS
If the information in this manual is not followed
exactly, a fi re or explosion may result causing
property damage, personal injury or loss of
life.
– Do not store or use gasoline or other fl ammable
vapors and liquids in the vicinity of this or any other
appliance.
– WHAT TO DO IF YOU SMELL GAS
• Do not try to l
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CONTENTS DFX24C and DFX32C gas log appliances described in this manual feature the ® TRIPLE PLAY BURNER SYSTEM technology with exclusive triple effect technology producing a full random yellow fl ame, full depth ember bed and glowing logs. Important Safety Information .....................................3 Operating Instructions ............................................29 For Your Safety Read Before Lighting ...............29 Product Features ............................................
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IMPORTANT SAFETY INFORMATION INSTALLER OWNER Please retain these instructions for future reference. Please leave these instructions with the appliance. IMPORTANT Read these instructions carefully before installing or trying to operate a vent-free gas heater in this fi rebox. • Any change to this heater or its controls can be dangerous. • Improper installation or use of the heater can cause serious injury or death from fi re, burns, explosion or carbon monoxide poisoning. • Do not allow fans to b
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IMPORTANT SAFETY INFORMATION 15. Keep room area clear and free from combustible materi- 25. Do not fill spaces around the firebox with insulation or als, gasoline and other flammable vapors and liquids. other materials. These spaces must be maintained to pre- vent the firebox from coming in contact with combustible 16. Unvented gas heaters are a supplemental zone heater. materials. They are not intended to be a primary heating appli- ance. This appliance may be installed in an aftermarket, 1
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PRODUCT FEATURES Fireplace Screen Control Knob Piezo On/Off Ignition Switch Figure 1 - Unvented Gas Heater (Control Access Door Shown Open) Your vent-free fireplace must be mounted on the floor or on the optional fireplace hearth. OPERATION This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency. This zero-clearance unvented gas heater can be installed against (or recessed into) any wall that is accessible to a gas line. 33D4047 5
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PRODUCT FEATURES and SPECIFICATIONS NATURAL GAS Manual and T-Stat Pressure Milli-Volt Pressure Regulator Pressure Setting 4 in. w.c. Regulator Pressure Setting 3.5 in. w.c. Pilot Regulator 3.5 in. w.c. Gas Inlet Pressure: Max. 10.5 in. w.c. Min. 5 in. w.c. Gas Inlet Pressure: Max. 10.5 in. w.c. Min. 5 in. w.c. Gas Rate Number of Model Number Type Burners Max BTU/Hr Min BTU/Hr DFX24NMC Manual 22,000 15,000 1 DFX24NVC Milli-Volt 22,000 17,000 1 DFX32NMC Manual 26,000 15,000 1 DFX32NVC Milli-Vo
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PRODUCT SPECIFICATIONS and GETTING STARTED Milli-V olt control has four (4) positions: OFF - All gas to the gas logs is shut off at the valve. IGN - Valve position to light/maintain a standing pilot. ON - Valve position to turn ON/OFF log set with remote switch/thermostat. LOW/HI - Variable position to control flame height (heat output). Both front and rear burners are in operation to provide realistic glow and yellow flame. PILOT The gas log heater is fitted with a specially designed safet
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GENERAL INSTALLATION INFORMATION In planning the installation for the fireplace it is necessary to determine where the unit is to be installed and whether optional accessories are desired. Gas supply piping should also be planned. The following steps represent the normal sequence of installation. Each installation is unique, however, and might require a different sequence. 1. Position fireplace in desired location. See the Location of Fireplace and Clearances and Height Requirements, and Fir
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GENERAL INSTALLATION INFORMATION CODES Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which can be obtained from… American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 or National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 Do not install the heater • where curtains, furniture, clothing, or other fl ammable objects are less than 42" from the front of the heater. • in high tra
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GENERAL INSTALLATION INFORMATION Figure 3 - Sample Room for Determining the Maximum Heater Rating The following formula can be used to determine the maximum heater rating per the definition of unconfined space: (L1 + L2) Ft x (W) Ft x (H) Ft. BTU BTU x 1000 /Hr /Hr = 50 Consider two connecting rooms with an open area between, with the following dimensions: 1 L1 = 15 /2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft. 1 (15 /2 + 12) x (12) x (8) BTU BTU /Hr = x 1000 = 52800 /Hr 50 If there were a door b
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GENERAL INSTALLATION INFORMATION INSTALLING OPTIONAL FIREBRICK PANELS 1. Remove optional firebrick panels from packaging. Check to See that you have the following: • 3 firebrick panels • two (2) retainer brackets • two (2) black screws If any part or parts are missing, contact dealer where you bought fireplace. 2. Turn off fireplace and allow to cool. 3. Remove fi replace screen (See Figure 14, page 14) and logs. 4. Place rear firebrick panel on back wall of firebox. Set bottom of panel b
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GENERAL INSTALLATION INFORMATION BLACK TRIM INSTALLATION (DFX24C/DBX24C) 1. Remove black trim from protective packaging. Remove four (4) black screws and 2 (two) 90°-angle trim brackets from owner’s manual packaging. 2. Lay trim on fl oor and match corners of side trims to top trim (See Figure 6). 3. Use one 90°-angle trim bracket to join the corner of one piece of side trim to the corner of the top trim piece (See Figure 6). A rubber hammer or handle of a claw hammer will help secure the cor
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GENERAL INSTALLATION INFORMATION BLACK TRIM INSTALLATION (DFX32C) 1. Remove trim from protective packaging. Be careful not to scratch the trim. Remove two (2) 90°-angled mounting Top Trim Piece brackets and two (2) 90°-angled shims. 45°-angled 2. Lay trim face down on the floor. Line up the 45°-angled Corners corners of the top trim with the 45°-angled corners of the side trims. Back of Trim Note: Both ends of the top piece of trim are Assembly mitered. See Figure 9. 3. Slide one
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GENERAL INSTALLATION INFORMATION REMOVING SCREEN 1. Remove bottom louver. See Figure 14. 2. Removing fireplace screen frame panel by pushing screen frame panel up and out. See Figure 14. Do not operate the unit without the screen frame panel and canopy installed. Canopy Fireplace Screen Louver Figure 14 - Removing Fireplace Screen Frame Panel NOTE: Fireplace screen must be removed to access log box and to install canopy. INSTALLING CANOPY 1. Push louvers up and out to remove top louver as
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GENERAL INSTALLATION INFORMATION SECURING HEATER TO FLOOR OR HEARTH Note: Clearance requirements as detailed in “CLEARANCES and HEIGHT REQUIREMENTS” section on page 17 of this manual, must be met before securing the heater in place. To prevent movement, the heater must be secured to the floor or hearth. 1. Open the control access door and remove the screen. 2. Remove carton containing the four-log set. 3. To remove the grate and base assembly, take out two (2) screws as shown in Figure 16. 4. L
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LOCATION OF FIREPLACE Carefully select the best location for installation of your unvented fireplace. The following factors should be taken into consideration. • Clearance to side wall, ceiling, woodwork and window or other combustibles. See Clearances and Height Requirements section on page 17. Minimum clearances to combustibles must be maintained. • Location must not be affected by drafts caused by kitchen exhaust fans, ceiling fans, return air registers for forced air furnaces/air conditio
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42" Minimum 9" 9" Minimum Minimum CLEARANCES and HEIGHT REQUIREMENTS Ensure that minimum clearances shown in Figures 14 and 15 are maintained. Left and right clearances are determined when facing the front of the firebox. Follow these instructions carefully to ensure safe installation. Failure to follow these requirements may create a fire hazard. 1. Sidewall Clearances — The clearance from the inside of the appliance to any combustible adjacent wall should not be less than 9" for the DBX24
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FIREPLACE FRAMING If unit is to be “built in”, fireplace framing can be built before or after the appliance is set in place. BE SURE THAT ALL PACKING MATERIAL HAS BEEN REMOVED FROM THE UNDERSIDE OF THE UNIT PRIOR TO SETTING THE FIREBOX IN PLACE. Construct fireplace framing following Figures 21 through 24. See Figure 2 on page 8 for fireplace dimensions. The framing headers may rest directly on top of the firebox. The fireplace may be installed directly on a combustible floor or a raised platf
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FIREPLACE FRAMING When finishing a custom cabinet, mantel, or other built-in enclosure, the opening size to accommodate the fireplace with trim installed is as follows: H DFX24C w/ trim DBX24C w/ trim DFX32C w/trim 13 H 25 " 25" 32 /16 " J 3 3 1 J 26 /4 "26 /4 "31 /4 " Figure 25 - Custom Cabinet The fi replace must be installed giving full consideration to the clearance and height requirements identifi ed in this manual. 1. Bend out the nailing flanges located on each side of the firebox.
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CONNECTING THE GAS NOTICE: A qualifi ed gas appliance installer must connect the heater to the gas supply. Consult all local codes. Use new black iron pipe, steel pipe, copper tubing or internally tinned copper tubing. Internally tinned copper tubing can only be used per National Fuel Code, section 2.6.3, providing gas meets sulfi de limits, and where permitted by local codes. Gas piping system must be sized to provide minimum inlet pressure (listed on Data Plate) at the maximum fl ow rate (BT
