Comfort Glow CGN20T - Manuals

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Manual

Manual Comfort Glow CGN20T

Summary

Page 2 - CONTENTS; SECTION; SAFETY; WARNINGS; DANGER; Carbon monoxide poisoning may lead to death!; Early signs of carbon monoxide poisoning; Natural Gas; : Natural gas is odorless. An odor-making agent is added to natural

2 103873 CONTENTS SECTION PAGE SAFETY INFORMATION WARNING ICON G 001 WARNINGS IMPORTANT: Read this owner’s manual carefully and completely be-fore trying to assemble, operate, or service this heater. Improper use ofthis heater can cause serious injury or death from burns, fire, explosion,electrical ...

Page 3 - Continued

3 103873 SAFETY INFORMATION Continued WARNING ICON G 001 WARNINGS Continued WARNING: Any change to this heater or its controls can be dangerous. 1. 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. 2. If you...

Page 4 - dealer where you bought heater.; Safety Device

4 103873 PRODUCT IDENTIFICATION LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, usethe latest edition of the National Fuel Gas Code ANSI Z223, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New Y...

Page 5 - WARNING; Confined and Unconfined Space; per kw) of the aggregate input rating of all; PROVIDING ADEQUATE VENTILATION; Unusually Tight Construction; ous water vapor retarder with a rating of one perm (6x10

5 103873 FRESH AIR FOR COMBUSTION AND VENTILATION WARNING ICON G 001 WARNING This heater shall not be installed in a confined space unless provi-sions are provided for adequate combustion and ventilation air.Read the following instructions to insure proper fresh air for thisand other fuel-burning ap...

Page 6 - Determining if You Have a Confined or Unconfined Space

6 103873 FRESH AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER 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 heater plus...

Page 7 - National Fuel; VENTILATION AIR; Ventilation Air From Inside Building; Figure 2 - Ventilation Air from Inside Building

7 103873 FRESH AIR FOR COMBUSTION AND VENTILATION Continued WARNING ICON G 001 WARNING If the area in which the heater may be operated is smaller than thatdefined as an unconfined space, provide adequate combustion andventilation air by one of the methods described in the National Fuel Gas Code, ANS...

Page 8 - Figure 3 - Ventilation Air from Outdoors; Ventilation Air From Outdoors

8 103873 FRESH AIR FOR COMBUSTION AND VENTILATION Continued Figure 3 - Ventilation Air from Outdoors Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide twopermanent openings: one within 12" of the ceiling and one within 12" of the flo...

Page 9 - NOTICE; CHECK GAS TYPE; This heater is designed to be mounted on a wall.; Never install the heater; CAUTION

9 103873 INSTALLING TO WALL NOTICE A qualified service person must install heater. Follow all local codes. CHECK GAS TYPE Use only natural gas. If your gas supply is not natural gas, do not install heater. Calldealer where you bought heater for proper type heater. INSTALLATION ITEMS Before installin...

Page 10 - For convenience and efficiency, install heater; Figure 4 - Mounting Clearances As Viewed From Front of Heater; INSTALLING TO; If you install the heater in a home garage; Figure 5 - Attaching Thermostat Sensing Bulb; THERMOSTAT SENSING BULB; Locating Thermostat Sensing Bulb; opening in bottom of heater.

10 103873 For convenience and efficiency, install heater • where there is easy access for operation, inspection, and service• in coldest part of room An optional fan kit is available from your dealer. See Accessories, page 30. If plan-ning to use fan, locate heater near an electrical outlet. Figure ...

Page 11 - INSTALLING HEATER TO WALL; Mounting Bracket; Figure 6 - Bracket Location; Figure 7 - Removing Front Panel Of Heater; Methods For Attaching Mounting Bracket To Wall; Attaching to wall stud; This method provides the strongest hold. Insert mounting; Attaching to wall anchor; This method allows you to attach mounting bracket to; Removing Front Panel Of Heater

11 103873 INSTALLING HEATER TO WALL Mounting Bracket The mounting bracket is located on back panel of heater. It has been taped there forshipping. Remove mounting bracket from back panel. Continued Figure 6 - Bracket Location MountingBracket INSTALLING TO WALL Continued Figure 7 - Removing Front Pan...

Page 12 - Marking Screw Locations; screws through these holes only.; Figure 8 - Mounting Bracket Clearances; Attaching Mounting Bracket To Wall; hardware package is provided with heater.; Attaching to wall stud method; holes drilled in wall.; Attaching to wall anchor method; Fold wall anchor as shown in Figure 9.; Figure 9 - Folding Anchor

12 103873 Marking Screw Locations 1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level. 30,000 Btu/Hr Model 20,000 Btu/Hr Models 2. Mark screw locations on wall (see Figure 8). Note: Only mark last hole on each end of mounting bracket. Insert mounting sc...

Page 13 - Figure 10 - Popping Open Anchor Wings For Thin Walls; Placing Heater On Mounting Bracket; Figure 11 - Mounting Heater Onto Mounting Bracket; Installing Bottom Mounting Screws; Figure 12 - Installing Bottom Mounting Screws

13 103873 4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT: Do not hammer key! For thick walls (over 1/2" thick) or solid walls, do not pop open wings. Figure 10 - Popping Open Anchor Wings For Thin Walls 5. Place mounting ...

Page 14 - Typical Inlet Pipe Diameters

14 103873 CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply. Fol-low all local codes. Typical Inlet Pipe Diameters 20,000 Btu/Hr Models 3/8" or greater 30,000 Btu/Hr Model 1/2" or greater Installation must include a manual shutoff valve, union, and ...

Page 15 - Figure 13 - Gas Connection; PRESSURE TESTING GAS SUPPLY PIPING SYSTEM; Test Pressures In Excess Of 1/2 PSIG; opening main gas valve located on or near gas meter.

15 103873 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/ or fittings. PressureRegulator Tee Joint ReducerBushing to1/8" NPT 1/8" NPTPlug Tap Test Gauge Connection * Tee Joint Pipe Nipple Cap 3/8" NPTPipe Nipple Figure 13 - Gas Connection * An A.G.A. ...

Page 16 - water to gas joints. Bubbles forming show a leak.; Test Pressures Equal To or Less Than 1/2 PSIG; gas valve located on or near gas meter.; PRESSURE TESTING HEATER GAS CONNECTIONS; internal joints for leaks.; Figure 14 - Manual Shutoff Valve; Figure 15 - Checking Gas Joints; CHECKING

16 103873 ON POSITION OFF POSITION 4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 5. Correct all leaks at once. Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 14).2. Pressuri...

Page 17 - FOR YOUR SAFETY READ BEFORE LIGHTING; Figure 16 - Control Knob In The OFF Position; LIGHTING INSTRUCTIONS

17 103873 OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas...

Page 19 - TO TURN OFF GAS TO APPLIANCE; OPERATING; Shutting Off Heater; to the OFF position.; to the PILOT position.; THERMOSTAT CONTROL OPERATION

19 103873 TO TURN OFF GAS TO APPLIANCE OPERATING HEATER Shutting Off Heater 1. Turn control knob clockwise Clockwise to the OFF position. 2. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise Clockwise...

Page 20 - Check pilot flame pattern and burner flame pattern often.; PILOT FLAME PATTERN; Figure 18 - Correct Pilot Flame Pattern; Figure 19 - Incorrect Pilot Flame Pattern; If pilot flame pattern is incorrect, as shown in Figure 19.

20 103873 INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilotflame pattern. The incorrect pilot flame is not touching the thermocouple. This willcause the thermocouple to coo...

Page 21 - Figure 20 - Correct Burner Flame Pattern; INSPECTING; CORRECT FLAME PATTERN; BURNER FLAME PATTERN; If burner flame pattern is incorrect, as shown in Figure 21

21 103873 1/2 GLASS HEIGHT INCORRECT FLAME PATTERN AT HIGH POSITION NOTICE Do not mistake orange flames with yellow tipping. Dirt or other fineparticles enter the heater and burn causing brief patches of orangeflame. Figure 20 - Correct Burner Flame Pattern Figure 21 - Incorrect Burner Flame Pattern...

Page 22 - CABINET; Air Passageways; SHOOTING; ing items are listed in; Turn off heater and let cool before cleaning.; REMEDY

22 103873 CLEANING AND MAINTENANCE ODS/PILOT AND BURNER • Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean. CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabin...

Page 25 - If you smell gas

25 103873 TROUBLE- SHOOTING Continued WARNING ICON G 001 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 suppli...

Page 26 - SPECIFICATIONS; When gas pressure is too low

26 103873 TECHNICAL SERVICE You may have further questions about installation, operation, or troubleshooting.If so, contact DESA International’s Technical Service Department at 1-800-323-5190. CGN20T/CGN20TL CGN30T/CGN30TL 20,000 Btu/Hr Models 30,000 Btu/Hr Models Btu (Variable) 10,000/20,000 15,000...

Page 27 - for parts replaced under warranty.; Parts Under Warranty; Parts Not Under Warranty; When calling DESA International, have ready; REPLACEMENT

27 103873 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 replacementpart(s), either contact your nearest Parts Central (see below) or...

Page 29 - PARTS LIST

29 103873 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, followthe instructions listed under Replacement Parts on page 27 of this manual. PART NUMBER FOR KEY CGN20T/CGN20TL CGN30T/CGN30TL NO. 20,000 Btu/Hr 30,000 Btu/Hr DESCRIPTION QTY. 1 098304-01 098304-0...

Page 30 - ACCESSORIES

30 103873 ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply theseaccessories, either contact your nearest Parts Central (see page 27) or call DESAInternational’s Parts Department at 1-800-972-7879 for referral information. You canalso write to the address l...

Page 31 - NOTES

31 103873 NOTES ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ____________...

Page 32 - WARRANTY INFORMATION; KEEP THIS WARRANTY

LIMITED WARRANTY COMFORT GLOW VENT-FREE NATURAL GAS HEATERS DESA International warrants this product to be free from defects in materials and components for two (2) years fromthe date of first purchase, provided that the product has been properly installed, operated and maintained inaccordance with ...