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COMPACT HEAT MAJIC™
VENT-FREE NATURAL GAS FIREPLACE SYSTEM
OWNER’S OPERATION AND INSTALLATION MANUAL
FMH26TN
14,000 to 26,000 Btu/Hr
with Thermostat
Shown with Optional
Cabinet Mantel/Hearth
Base Accessory
WARNING: Improper installa-
WARNING: If the information in this manual
tion, adjustment, alteration, ser-
is not followed exactly, a fire or explosion
vice, or maintenance can cause
may result causing property damage, per-
injury or property damage. Re-
sonal injury, or loss of life.
fer to th
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM 3. This fireplace shall not be installed in SAFETY WARNING: Do not use a a bedroom or bathroom. blower insert, heat exchanger INFORMATION 4. Do not use this fireplace as a wood- insert, or other accessory not ap- burning fireplace. Use only the logs proved for use with this fireplace. WARNINGS provided with the fireplace. WARNING ICON G 001 5. Do not add extra logs or ornaments IMPORTANT: Read this owner’s Due to high temperatures, the such as pine cones,
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OWNER’S MANUAL SAFETY PRODUCT LOCAL CODES INFORMATION FEATURES Install and use fireplace with care. Follow all local codes. In the absence of local codes, use Continued SAFETY PILOT the latest edition of The National Fuel Gas 14. Turn off and unplug fireplace and let Code ANSI Z223.1/NFPA 54*. This fireplace has a pilot with an Oxygen cool before servicing. Only a qualified Depletion Sensing (ODS) safety shutoff sys- *Available from: service person should service and re- tem. The ODS/pilot is a
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM Log Screen ASSEMBLY Shipping Shoulder Screw Screw WARNING: Always have branch support and screen in place before operating fireplace. This prevents excessive tempera- Burner tures on fireplace surfaces. Support WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this fireplace may result in prop- erty damage or personal injury ASSEMBLING FIREPLACE Tools Required: • Phillips screw
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OWNER’S MANUAL Confined and Unconfined Space PROVIDING ADEQUATE AIR FOR VENTILATION The National Fuel Gas Code, ANSI Z223.1/ COMBUSTION AND NFPA 54 defines a confined space as a space The following are excerpts from National VENTILATION whose volume is less than 50 cubic feet per Fuel Gas Code, ANSI Z223.1/NFPA 54, Sec- 3 1,000 Btu per hour (4.8 m per kw) of the tion 5.3, Air for Combustion and Ventilation. aggregate input rating of all appliances in- WARNING: This heater shall All spaces in ho
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install fireplace plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x H
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OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION 12" Continued VENTILATION AIR Ventilation Air From Inside Ventilation Grills Into Adjoining Room, Building Ventilation Option 2 Grills Or This fresh air would come from an adjoining into Adjoining Remove unconfined space. When ventilating to an Room, Door into Option 1 Adjoining adjoining unconfined space, you must pro- Room, vide two permanent openings: one within Option 3 12" of the ceiling and one within 12" of the floor on the wall con
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM Note: Your vent-free fireplace is designed CEILING INSTALLATION to be used in zero clearance installations. Wall or framing material can be placed NOTICE: This heater is intended directly against any exterior surface on the 36" for use as supplemental heat. Use Minimum rear, sides, or top of your fireplace, except this heater along with your pri- where stand-off spacers are integrally at- 6" mary heating system. Do not in- Minimum tached. If standoff spacer
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OWNER’S MANUAL 9. Check all gas connections for leaks. See INSTALLATION WARNING: If pre-wiring, do Checking Gas Connections, page 16. Continued not connect wiring to any electri- 10. If using optional brass trim kit, install cal source at this time. the trim after final finishing and/or For convenience and efficiency, install Install fireplace electrical outlet painting of wall. See instructions in- fireplace and connect wiring to outlet be- cluded with brass trim accessory for at- • where ther
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM 3. Place mantel around fireplace/base 12. Check for leaks. See Checking Gas INSTALLATION assembly. Connections, page 16. Continued 4. Assemble brass trim kit. See Assem- 13. Place mantel around fireplace. Be care- bling Brass Trim, page 11. ful not to damage wall or mantel. Mantel Clearances for Built-In Installation 5. Firmly snap brass trim kit on shoulder 14. Place brass trim kit on the shoulder screws. Shoulder screws are located on screws located on th
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OWNER’S MANUAL Branch INSTALLING BLOWER INSTALLATION Support Shoulder ACCESSORY GA3450T Continued Screw Removing Upper Louver Assembling Brass Trim (Brass Remove Assembly trim shipped with mantel) Screw 1. Remove packaging from three remain- To install the blower accessory, you must ing pieces of brass trim. first remove the upper louver assembly. Valve 2. Locate two adjusting plates with set 1. Lift screen off heater. Cover screws, and two shims in the hardware Shield 2. Remove 4 screws from lo
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3 2 1 NATURAL GAS VENT-FREE FIREPLACE SYSTEM 6. Route the wire harness through the 9. Install the switch plate on the valve INSTALLATION hole in left side of baffle. Pull wire cover shield with 2 #10 screws provided Continued harness through lower opening above (see Figure 19). Reinstall the valve where the valve shield was removed. cover shield. Route power cord out of 4. Carefully disconnect green and white (see Figure 18). the cabinet by inserting it through the wires at their insulated conne
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3 2 1 OWNER’S MANUAL Fan Switch INSTALLATION (Auto/Off/On) Auto 1 Continued 2 Off 3 Thermostat For Built-In Installation Blue Switch On (N.O.) WARNING: A licensed elec- Blue 110/115 trician must connect the wiring Red V.A.C. Blower Motor harness to electrical supply fol- Black Red lowing all local codes. Electri- White White cian must provide a clamp on Green Green the box cover to secure the wir- ing. Wiring should be routed through the bushing in the hole on the outer casing of heater. Figu
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM CONNECTING TO GAS INSTALLATION CAUTION:Use only new, SUPPLY Continued black iron or steel pipe. Inter- nally-tinned copper tubing may WARNING: This appliance re- Extension Cord be used in certain areas. Check quires a 45° male flare fitting 5/8"- your local codes. Use pipe of Use extension cord if needed. The cord must 18 UNF (Unified National Fine 1/2" or greater diameter to al- have a three-prong, grounding plug and a Thread) inlet connection and the lo
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OWNER’S MANUAL 5. Check all gas connections for leaks. See INSTALLATION CAUTION: Avoid damage to Checking Gas Connections, page 16. Continued regulator. Hold gas regulator with 6. Replace branch support back into fire- wrench when connecting it to gas place. Feed flexible gas line into fire- CONNECTING EQUIPMENT piping and/or fittings. place base area while replacing branch SHUTOFF VALVE TO support. Make sure the entire flexible 4. Apply pipe joint sealant lightly to male HEATER CONTROL gas lin
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM Test Pressures Equal To or Less Than Pressure Testing Fireplace Gas INSTALLATION 1/2 PSIG (3.5 kPa) Connections Continued 1. Close equipment shutoff valve (see Fig- 1. Open equipment shutoff valve (see Fig- ure 26). ure 26). CHECKING GAS 2. Pressurize supply piping system by either 2. Open main gas valve located on or near CONNECTIONS using compressed air or opening main gas gas meter. valve located on or near gas meter. 3. Make sure control knob of firepla
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OWNER’S MANUAL Note: You may be running this fire- LIGHTING OPERATING place for the first time after hooking INSTRUCTIONS FIREPLACE up to gas supply. If so, the control knob may need to be pressed in for WARNING: You must operate FOR YOUR SAFETY 30 seconds or more. This will allow this fireplace with the fireplace air to bleed from the gas system. READ BEFORE screen in place. Make sure fire- • If control knob does not pop up LIGHTING place screen is installed before when released, contact a qua
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OFF ON NATURAL GAS VENT-FREE FIREPLACE SYSTEM MANUAL LIGHTING OPERATING INSPECTING PROCEDURE FIREPLACE BURNER 1. Follow steps 1 through 5 under Light- Continued ing Instructions, page 17. Check pilot flame pattern and burner flame pattern often. 2. With control knob pressed in, strike TO TURN OFF GAS match. Hold match to pilot until pi- TO APPLIANCE PILOT FLAME PATTERN lot lights. Shutting Off Fireplace Figure 31 shows a correct pilot flame pattern. 3. Keep control knob pressed in for 30 1. Turn
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OWNER’S MANUAL 4. Check the injector holder located at the INSPECTING CLEANING AND end of the burner tube again. Remove BURNER MAINTENANCE any large particles of dust, dirt, lint, or pet hair with a soft cloth or vacuum Continued cleaner nozzle. WARNING: Turn off fireplace BURNER FLAME PATTERN 5. Blow air into the primary air holes on and let cool before cleaning. the injector holder. Figure 33 shows a correct burner flame 6. In case any large clumps of dust have pattern. Figure 34 shows an inc
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NATURAL GAS VENT-FREE FIREPLACE SYSTEM TROUBLESHOOTING WARNING: Turn off and un- CAUTION: Never use a wire, plug fireplace and let cool before needle, or similar object to clean Note: For additional help, visit DESA servicing. Only a qualified ser- ODS/pilot. This can damage ODS/ International’s technical service web site vice person should service and pilot unit. at www.desatech.com. repair fireplace. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE
