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oWNER's opERaTioN aND iNsTallaTioN MaNUal
MaNUal MoDEls CGMFN aND CGMFp
REMoTE-REaDy MoDEls VGMRN aND VGMRp
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable
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 quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.desatech.com
UNVENTED (VENT-FREE) Gas
MiNi CoMpaCT FiREplaCE
Shown with Optional
Cabinet Mantel/Hearth
Base Accessory
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Table of Contents
Troubleshooting
Related Manuals for Desa CGMFN
Summary of Contents for Desa CGMFN
- Page 1 UNVENTED (VENT-FREE) Gas MiNi CoMpaCT FiREplaCE oWNER’s opERaTioN aND iNsTallaTioN MaNUal MaNUal MoDEls CGMFN aND CGMFp REMoTE-REaDy MoDEls VGMRN aND VGMRp WARNING: If the information in this manual is not fol- lowed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
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Page 2: Table Of Contents
Safety Information ... Local Codes... 4 Unpacking... 4 Product Identification ... 5 Product Features ... 5 Optional Remote Control Accessories ... 5 Assembly ... 5 Air for Combustion and Ventilation ... 6 Installation ... 9 Operating Fireplace ... 18 Inspecting Burners... -
Page 3: Safety Information
saFETy iNFoRMaTioN Continued DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning: monoxide poisoning resemble the flu, with head- aches, dizziness or nausea. If you have these signs, the fireplace may not be working properly. Get fresh air at once! Have fireplace serviced. Some people are more affected by carbon monoxide than others. -
Page 4: Local Codes
saFETy iNFoRMaTioN Continued 6. Do not add extra logs or ornaments such as pine cones, vermiculite or rock wool. Using these added items can cause sooting. Do not add lava rock around base. Rock and debris could fall into the control area of fireplace. 7. -
Page 5: Product Identification
pRoDUCT iDENTiFiCaTioN Brick Liners Screen Control Knob Piezo Ignitor Access Door Brick Liners Screen Control Knob Remote Control Electronic Ignitor Access Door Figure 1 - Vent-Free Mini Compact Fireplace pRoDUCT FEaTUREs SAFETY PILOT This fireplace has a pilot with an Oxygen Deple- tion Sensing (ODS) safety shutoff system. -
Page 6: Air For Combustion And Ventilation
assEMBly Continued 5. Place hood under top edge of firebox opening. Use 3 screws from hardware kit to mount screen to firebox (see Figure 3). Shoulder Screw Screen Figure 2 - Removing and Replacing Screen Top Trim Panel Hood Screw Figure 3 - Assembling Hood aiR FoR CoMBUsTioN aND VENTilaTioN... - Page 7 aiR FoR CoMBUsTioN aND VENTilaTioN Continued Unusually tight construction is defined as construction where: a. walls and ceilings exposed to the out- side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10 kg per pa-sec-m less with openings gasketed or sealed b.
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Page 8: Combustion And Ventilation Air
aiR FoR CoMBUsTioN aND VENTilaTioN Continued The space in the example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide ad- ditional fresh air. Your options are as follows: A. -
Page 9: Installation
iNsTallaTioN NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri- mary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. -
Page 10: Fireplace Clearances
iNsTallaTioN Continued FIREPLACE CLEARANCES WARNING: Maintain the minimum clearances shown in Figure 6. If you can, provide greater clearances from floor, ceiling and joining wall. NOTICE: If you install the fire- place in a bedroom, some building codes require that the fireplace/mantel system be se- cured to (or within) a wall. - Page 11 iNsTallaTioN Continued Actual Framing Height Front Width 19 Depth Bottom 0" 1. Frame in rough opening. Use dimensions shown in Figure 7 for the rough opening. If installing in a corner, use dimensions shown in Figure 8 for the rough opening. The height is 22 is the same as the wall opening above.
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Page 12: Optional Mantel Installation
iNsTallaTioN Continued 9" Note: 3" A ll vertical measurements 1" are from top of 3/4" fireplace opening to bottom of mantel shelf. All measurements are in inches. Side of Firebox Figure 9 - Minimum Mantel Clearances for Built-In Installation OPTIONAL MANTEL INSTALLATION Refer to instructions provided with the mantel for assembly. - Page 13 iNsTallaTioN Continued CONNECTING TO GAS SUPPLY WARNING: This appliance re- quires a 45° male flare fitting 5/8"- 18 UNF (Unified National Fine Thread) inlet connection and the flexible gas line provided. WARNING: A qualified ser- vice person must connect fire- place to gas supply.
- Page 14 iNsTallaTioN Continued We recommend that you install a sediment trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze.
- Page 15 iNsTallaTioN Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints.
- Page 16 iNsTallaTioN Continued PRESSURE TESTING FIREPLACE GAS CONNECTIONS 1. Open equipment shutoff valve (see Figure 16, page 15). 2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve. 3. Make sure control knob of fireplace is in the OFF position.
- Page 17 iNsTallaTioN Continued OPTIONAL WALL MOUNTED THERMOSTAT - GWMT1 (Remote-Ready Models Only) WARNING: Read and fol- low installation instructions. Installation should be done by a qualified installer familiar with low-voltage wiring procedures. WARNING: Do not connect this thermostat to any electrical source! Electrical shock and/or fire hazard will occur.
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Page 18: Operating Fireplace
iNsTallaTioN Continued OPTIONAL WALL SWITCH - GWMS2 (Remote-Ready Models Only) WARNING: Read and fol- low installation instructions. Installation should be done by a qualified installer familiar with low-voltage wiring procedures. WARNING: Do not connect this switch to any electrical source! Electrical shock and/or fire hazard will occur. -
Page 19: Operating Fireplace
opERaTiNG FiREplaCE Continued D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. - Page 20 opERaTiNG FiREplaCE Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Fireplace Turn control knob clockwise position. Shutting Off burners Only (pilot stays lit) Turn control knob clockwise PILOT position. MANUAL LIGHTING PROCEDURE 1. Follow steps 1 through 5 under Lighting Instructions, page 19.
- Page 21 opERaTiNG FiREplaCE Continued 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information, page 20. If you don’t smell gas, go to the next step. 5.
- Page 22 opERaTiNG FiREplaCE Continued After lighting, let pilot flame burn for about one minute. Turn control knob to ON posi- tion. Slide the remote selector switch to the REMOTE position (see Figure 33). Note: The burner may light if hand-held re- mote was on when the remote selector switch was last turned off.
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Page 23: Inspecting Burners
opERaTiNG FiREplaCE Continued Safety Features When away from home for an extended period of time or as a child safety feature to prevent accidental ignition of the fireplace, receiver ON/OFF/REMOTE switch should be in the OFF position. Auto Shutoff Feature 1. -
Page 24: Inspecting Burners
iNspECTiNG BURNERs Continued If burner flame pattern is incorrect, as shown in Figure 39 • turn fireplace off (see To Turn Off Gas to Appli- ance, page 20 for Manual-Controlled Models or page 21 for Remote-Ready Models) • see Troubleshooting, page 31 Figure 38 - Correct Burner Flame Pattern Figure 39 - Incorrect Burner Flame Pattern ClEaNiNG aND... -
Page 25: Troubleshooting
ClEaNiNG aND MaiNTENaNCE Continued Figure 41 - Pilot Inlet Air Hole (Propane/LP Gas) Figure 42 - Pilot Inlet Air Hole (Natural Gas) WARNING: Turn off and unplug fireplace and let cool before servicing. Only a qualified service person should service and repair fireplace. - Page 26 ObSERVED PRObLEM When ignitor button is pressed, there is spark at ODS/pilot but no ignition ODS/pilot lights but flame goes out when control knob is released Burner does not light after ODS/ pilot is lit TRoUBlEshooTiNG Continued POSSIbLE CAUSE 1. Gas supply turned off or equipment shutoff valve closed 2.
- Page 27 ObSERVED PRObLEM Delayed ignition of burner Burner backfiring during com- bustion 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 adjacent walls or furniture Moisture/condensation noticed on windows 119315-01A...
- Page 28 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. Fol- low the gas supplier’s instructions.
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Page 29: Specifications
If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040. When calling, please have your model and serial numbers of your heater ready. You can also visit DESA Heating Products’ techni- cal services web site at www.desatech.com 119315-01A... -
Page 30: Illustrated Parts Breakdown And Parts List
BREakDoWN MANUAL-CONTROLLED MODELS CGMFN AND CGMFP 27 30 www.desatech.com 119315-01A... -
Page 31: Parts List
MANUAL-CONTROLLED MODELS This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. PART NO. 118596-01 11853-01CK Top Trim Panel 11854-01 11856-01CK Screen Assembly 1185-01CK Access Door 11858-01CK Side Panel Trim 118941-01 118941-0... - Page 32 illUsTRaTED paRTs BREakDoWN REMOTE-READY MODELS VGMRN AND VGMRP www.desatech.com Install Battery According To This Illustration Battery Positive Battery Negative 119315-01A...
- Page 33 REMOTE-READY MODELS This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. PART NO. 118596-01 11853-01CK Top Trim Panel 11854-01 11856-01CK Screen Assembly 1185-01CK Access Door 11858-01CK Side Panel Trim 118941-01 118941-0...
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Page 34: Accessories
Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, call DESA Heating Products at 1-866-672-6040 for re- ferral information. You can also write to the address listed on the back page of this manual. - Page 35 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ 119315-01A NoTEs www.desatech.com...
- Page 36 01 Industrial Drive P.O. Box 90004 Bowling Green, KY 410-9004 www.desatech.com 119315 01 NOT A UPC 119315-01 Rev. A 05/06...