Desa FMH26TN manual

Save this manual for future reference. OWNER’S OPERA TION AND INST ALLA TION MANUAL COMP ACT HEA T MAJIC™ VENT -FREE NA TURAL GAS FIREPLACE SYSTEM Shown with Optional Cabinet Mantel/Hearth Base Accessory FMH26TN 14,000 to 26,000 Btu/Hr with Thermostat WARNING: If the information in this manual is not followed exactly, a fire or explosion may re[...]

2 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM DANGER: Carbon monoxide poisoning may lead to death! SAFETY INFORMA TION Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the fireplace may not be working properly. Get fresh air at once! Have firepla[...]

3 107105 OWNER’S MANUAL IMPORT ANT : THIS P ACKA GE CONT AINS A FIREPLACE HOOD . UNWRAP CART ON AND REMOVE HOOD BEFORE DISCARDING PRO TECTIVE P ACKAGING. 1 2 PRODUCT IDENTIFICA TION LOCAL CODES Install and use fireplace with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223[...]

4 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM WARNING: Always have branch support and screen in place before operating fireplace. This prevents excessive tempera- tures on fireplace surfaces. ASSEMBL Y WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this fireplace [...]

5 107105 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months,[...]

6 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM AIR FOR COMBUSTION AND VENTILA TION Continued WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the Nat[...]

7 107105 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Continued Figure 6 - Ventilation Air from Outdoors Shown with Optional Mantel Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Figure 5 - Ventilation Air from Inside Building Shown with Optional Mantel VENTILATION AIR Ventilation A[...]

8 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM WARNING: A qualified ser- vice person must install fireplace. Follow all local codes. You can recess firebox into the wall. You can also position fireplace in the optional cabinet or corner mantels. IMPORTANT: Only use optional cabinet or corner mantels specified in this manual. Purchase the op- tio[...]

9 107105 OWNER’S MANUAL INST ALLA TION Continued 36 5 / 8 " 25 7 / 8 " 51 3 / 4 " 26 7 / 8 " Figure 10 - Rough Opening for Installing in Corner 1. Frame in rough opening. Use dimen- sions shown in Figure 9 for the rough opening. If installing in a corner , use dimensions shown in Figure 10 for the rough open- ing. The height i[...]

10 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM 13" 16" 19" 21" 2 1 / 2 " 6" 8" 10" Note: All vertical measurements are from top of fireplace opening to bottom of mantel shelf. All measurements are in inches. INST ALLA TION Continued Figure 13 - Attaching Brass Trim to Fireplace OPTIONAL MANTEL INSTALLATIO[...]

11 107105 OWNER’S MANUAL Assembling Brass Trim (Brass trim shipped with mantel) 1. Remove packaging from three remain- ing pieces of brass trim. 2. Locate two adjusting plates with set screws, and two shims in the hardware packet. 3. Align shim under adjusting plate as shown in Figure 15. 4. Slide one end of adjusting plate/shim in slot on mitere[...]

12 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM 3 2 1 4. Carefully disconnect green and white wires at their insulated connectors. 5. In top of the heater cabinet, locate the four mounting holes on the outer cas- ing. Align these four holes with those on the blower bracket assembly . Attach blower bracket assembly to the outer casing with 4 #10 [...]

13 107105 OWNER’S MANUAL For Built-In Installation WARNING: A licensed elec- trician must connect the wiring harness to electrical supply fol- lowing all local codes. Electri- cian must provide a clamp on the box cover to secure the wir- ing. Wiring should be routed through the bushing in the hole on the outer casing of heater. INST ALLA TION Con[...]

14 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM CONNECTING TO GAS SUPPLY WARNING: A qualified ser- vice person must connect fire- place to gas supply. Follow all local codes. IMPORTANT: Check gas line pressure be- fore connecting fireplace to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, [...]

15 107105 OWNER’S MANUAL INST ALLA TION Continued Figure 24 - Removing Branch Support From Fireplace CONNECTING EQUIPMENT SHUTOFF VALVE TO HEATER CONTROL Installation Items Needed • Phillips screwdriver • sealant (resistant to propane/LP gas, not provided) 1. Remove fireplace screen. Remove two screws that hold fireplace screen in place for s[...]

16 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM O N POSI T O PO Open Closed Equipment Shutoff Valve Figure 26 - Equipment Shutoff Valve Gas Meter Figure 27 - Checking Gas Joints Equipment Shutoff Valve Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Fig- ure 26). 2 . Pressurize supply piping system b[...]

17 107105 OWNER’S MANUAL OPERA TING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life. LIGHTING INSTRUCTIONS 1. STOP! Read the safety inf ormation, column 1. 2. Make sure equipment shutoff v alve is fu[...]

18 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM INSPECTING BURNER Thermocouple Pilot Burner Figure 31 - Correct Pilot Flame Pattern Thermocouple Pilot Burner Figure 32 - Incorrect Pilot Flame Pattern Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 31 shows a correct pilot flame pattern. Figure 32 shows an inc[...]

19 107105 OWNER’S MANUAL BURNER FLAME PATTERN Figure 33 shows a correct burner flame pattern. Figure 34 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tip- ping. It also shows the flame consistently higher than one inch above the log. Note: When using the fireplace the first time, the f[...]

20 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM TROUBLESHOOTING POSSIBLE CAUSE 1. Ignitor cable pinched or wet 2. Ignitor electrode not connected to igni- tor cable 3. Broken ignitor cable 4. Bad piezo ignitor 5. Ignitor electrode broken 6. Ignitor electrode positioned wrong 1 . Gas supply turned of f or equipment shutoff valve closed 2. Control[...]

21 107105 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Fireplace produces a whistling noise when burner is lit White powder residue forming within burner box or on adjac[...]

22 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • 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 instru[...]

23 107105 OWNER’S MANUAL REPLACEMENT PA R T S Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s) call DESA International’s Technical Service Department at 1-866-[...]

24 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM ILLUSTRA TED PAR TS BREAKDOWN FMH26TN 23 29 40 32 36 38 13 35 7 8 33 40 11 10 4 7 30 1 3 2 9 19 6 22 31 21 41 26 42 39 39 16 15 18 24 28 5 34 25 27 20 4 12 24 14 25 14 40 3 37 17 12[...]

25 107105 OWNER’S MANUAL P ARTS LIST FMH26TN KEY NO. PART NO. DESCRIPTION QTY. 1 102633-02 Outer Casing Top 1 2 102624-02 Outer Casing 1 3 099230-02 Shoulder Screw 14 4 098304-01 Screw, #10 x 3/8" 16 5 107178-01 Burner 1 6 103209-05 Louvered Door 1 7 102635-02CK Left and Right Side Front 2 8 101629-02 Bushing 1 9 103209-01 Top Louver 1 10 10[...]

26 107105 NA TURAL GAS VENT -FREE FIREPLACE SYSTEM ACCESSORIES Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA International’s Sales Department at 1-866-672-6040 for referral information. You can also write to the ad- dress listed on the back page of this manual. EQUIPMENT SHUTOFF VAL[...]

27 107105 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________[...]

2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com 107105-01 Rev. B 02/02 LIMITED WARRANTY VENT-FREE NATURAL GAS COMPACT HEAT MAJIC™ FIREPLACE SYSTEM DESA International warrants this product to be free from defects in materials and components for four (4) years and five (5) years on stainless steel burners from the[...]