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WARNING: If the information in this manual is not followed 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 qualified installer, service

agency, or the gas supplier.

This appliance may be installed in an aftermarket* manufactured (mobile) home,
where not prohibited by state or local codes.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

This appliance is only for use with the type of gas indicated on the rating plate.
This appliance is not convertible for use with other gases.

®

VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Model: CGN10T

Summary of Contents for CGN10TL

Page 1: ...as 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 This appliance may be installed in an aftermarket manufactured mobile home where not prohibited by state or local codes Aftermarket Completion of sale not for ...

Page 2: ... at high altitudes Natural Gas Natural gas is odorless An odor making agent is added to natural gas The odor helps you detect a natural gas leak However the odor added to natural gas can fade Natural gas may be present even though no odor exists Make certain you read and understand all Warnings Keep this manual for reference It is your guide to safe and proper operation of this heater CONTENTS SEC...

Page 3: ...r if not enough fresh air is available See Air for Combustion and Ventilation pages 5 through 8 6 Keep all air openings in front and bottom of heater clear and free of debris This will insure enough air for proper combustion 7 If heater shuts off do not relight until you provide fresh outside air If heater keeps shutting off have it serviced 8 Do not run heater where flammable liquids or vapors ar...

Page 4: ...on 2 Remove all protective packaging applied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater UNPACKING PRODUCT FEATURES Safety Device This heater has a pilot with an Oxygen Depletion Sensor Shutoff System ODS The ODS pilot is a required feature for vent free room heaters The ODS pilot shuts off the heater if there is...

Page 5: ...1 1992 Section 5 3 defines confined space as having an air volume of less than 50 cubic feet 127 cubic cm for each 1000 Btu Hr input rating of all appliances in the space cubic feet equals length x width x height of space Include adjoining rooms only if there are doorless passageways or ventilation grills between the rooms PROVIDING ADEQUATE VENTILATION The following is exerpts from National Fuel ...

Page 6: ... heater ___________________ Btu Hr Gas fireplace logs ___________________ Btu Hr Other gas appliances ___________________ Btu Hr Total ___________________ Btu Hr Example Gas water heater 40 000 Btu Hr Vent free heater 10 000 Btu Hr Total 50 000 Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr ...

Page 7: ...NTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space When ventilating to an adjoining unconfined space you must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 Foll...

Page 8: ...ent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet ai...

Page 9: ...n in Figure 4 page 10 If you can provide greater clearances from floor ceiling and joining wall WARNING ICON G 001 CAUTION If you install the heater in a home garage heater pilot and burner must be at least 18 inches above floor locate heater where moving vehicle will not hit it IMPORTANT Vent free heaters add moisture to the air Although this is beneficial in stalling heater in rooms without enou...

Page 10: ...tain minimum clearances shown in Figure 5 If you can provide greater clearances from floor and joining wall For convenience and efficiency install heater where there is easy access for operation inspection and service in coldest part of room Figure 4 Mounting Clearances As Viewed From Front of Heater 36 3 FLOOR CEILING Minimum Minimum To Top Surface Of Carpeting Tile Or Other Combustible Material ...

Page 11: ... Drill holes at marked locations using 5 16 drill bit For solid walls concrete or masonry drill at least 1 1 4 deep 2 Fold wall anchor see Figure 6 Figure 6 Folding Anchor 3 Insert wall anchor wings first into hole Tap anchor flush to wall 4 For thin walls 1 2 or less insert red key into wall anchor Push red key to pop open anchor wings see Figure 7 IMPORTANT Do not hammer key For thick walls over...

Page 12: ...bottom mounting hole This hole is near bottom on back panel of heater see Figure 11 2 Mark screw location on wall 3 Remove heater from wall 4 If installing bottom mounting screw into hollow or solid wall install wall anchor Follow steps 1 through 5 under Attaching To Wall Anchor Method page 11 If installing bottom mounting screw into wall stud drill hole at marked location using 9 64 drill bit 5 R...

Page 13: ...alves Install sediment trap trap in supply line as shown in Figure 12 page 14 Locate sediment trap where it is within reach for cleaning Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contami nants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly WARNING ICON G 0...

Page 14: ...ressure Figure 12 Gas Connection 3 Minimum CONNECTING TO GAS SUPPLY Continued WARNING ICON G 001 WARNING Test all gas piping and connections for leaks after installing or servicing Correct all leaks at once WARNING ICON G 001 WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once PRESSURE TEST...

Page 15: ...URE TESTING HEATER GAS CONNECTIONS 1 Open manual shutoff valve see Figure 13 2 Open main gas valve located on or near gas meter 3 Make sure control knob of heater is in the OFF position 4 Check all joints from manual shutoff valve to control valve see Figure 14 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating ...

Page 16: ...call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician or gas supplier Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspec...

Page 17: ... needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 21 through 24 Also contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 18 WARNING ICON G 001 CAUTION Do not try to adjust heating levels by using the manual shutof...

Page 18: ...s the room may exceed the set temperature If so the burner will shut off The burner will cycle back on when room temperature drops below the set temperature The control knob can be set to any heat level between HI and LO Note The thermostat sensing bulb measures the temperature of air near the heater cabinet This may not always agree with room temperature depending on housing construction installa...

Page 19: ...g the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 18 turn heater off see To Turn Off Gas to Appliance above see Troubleshooting pages 21 through 24 Thermocouple GRH OV 009 GOOD PILOT Thermocouple Pilot Burner GRH OV 008 BAD PILOT LP Pilot Burner Figure 17 Correct Pilot Flame Patte...

Page 20: ...urn Off Gas to Appliance page 18 see Troubleshooting pages 21 through 24 INSPECTING BURNER Continued WARNING ICON G 001 WARNING If yellow tipping occurs your heater could produce increased levels of carbon monoxide If burner flame pattern shows yellow tipping follow instructions at bottom of this page NOTICE Do not mistake orange flames with yellow tipping Dust or other fine particles enter the he...

Page 21: ...All troubleshooting items are listed in order of operation WARNING ICON G 001 WARNING Turn off heater and let cool before servicing Only a qualified service person should service and repair heater OBSERVED PROBLEM When ignitor button is pressed there is no spark at ODS pilot WARNING ICON G 001 CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit POSSI...

Page 22: ...ghten until snug then tighten 1 4 turn more 6 A Contact local natural gas company B Clean ODS pilot see Cleaning and Maintenance page 21 or replace ODS pilot assembly 7 Replace thermocouple 8 Replace control valve POSSIBLE CAUSE 1 Gas supply turned off or manual shutoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when i...

Page 23: ...ing and Mainte nance page 21 2 Contact local natural gas company 3 Replace gas regulator 1 Problem will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Operate burner until air is removed from line Have gas checked by local natural gas company 3 Observe minimum installation clearances see Figure 4 page 10 4 Clean burner see Cleaning and Mainte ...

Page 24: ...rn ing statement at top of page 2 Control valve defective 1 Foreign matter be tween control valve and burner 2 Gas leak See Warn ing statement at top of page 1 Not enough combus tion ventilation air OBSERVED PROBLEM Heater produces a clicking ticking noise just after burner is lit or shut off Heater produces unwanted odors Heater shuts off in use ODS operates Gas odor even when control knob is in ...

Page 25: ...en gas quality is bad pilot will not stay lit burner will produce flames and soot heater will backfire when lit You may feel your gas pressure is too low or gas quality is bad If so contact your local natural gas supplier SERVICE HINTS CGN10T Btu Variable 5 000 10 000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3 W C Inlet Gas Pressure inches of water Maximum 10 5 Minimum 4 Dim...

Page 26: ...26 102921 ILLUSTRATED PARTS BREAKDOWN CGN10T 10 12 11 1 2 3 4 5 6 7 9 8 10 13 14 15 16 17 18 23 24 27 14 22 20 26 25 19 25 21 ...

Page 27: ...ctor Unit 1 10 098271 03 Ignitor Cable 1 11 098249 01 Nut M5 2 12 100701 03 ODS Pilot Assembly 1 12 1 098514 01 Thermocouple 1 12 2 098594 01 Ignitor Electrode 1 13 099386 02 Burner 1 14 099387 11 Pilot Tubing 1 15 098251 03 Injector 1 16 099463 01 Injector Holder 1 17 099415 01 Pressure Regulator 1 18 102863 01 Burner Tubing 1 19 102864 01 Regulator Tubing 1 20 102492 01 5 16 Male Connector 1 21 ...

Page 28: ... to the factory Parts Not Under Warranty Contact authorized dealers of this product If they cannot supply original replace ment part s call DESA International s Parts Department at 1 800 972 7879 for information When calling DESA International have ready model number of your heater the replacement part number REPLACEMENT PARTS MANUAL SHUTOFF VALVE GA5010 Manual shutoff valve with 1 8 NPT tap SERVI...

Page 29: ...1 8270 Parts Department Dayton Hardware P O Box 275 North Dayton Station Dayton OH 45404 All States 513 258 3721 OH 1 800 762 3426 Parts Department Halco Enterprises 208 Carter Drive Unit 21 West Chester PA 19382 610 430 7717 1 800 368 0803 Parts Department LaPorte s Parts and Service 2444 North 5th Street Hartsville SC 29550 803 332 0191 Parts Department Cans Unlimited Inc P O Box 645 Taylor SC 2...

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Page 32: ...e heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail orbecomedamagedasaresultofmisuse accidents lackofpropermaintenanceordefectscausedbyimproperinstallation Travel diagnostic cost labor transportation ...

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