Page 2 - CONTENTS; SECTION; Determining Fresh-Air Flow for Heater Location
2 100351 CONTENTS SECTION PAGE Safety Information ......................................................................... 3 Product Identification .................................................................... 5 Local Codes .......................................................................
Page 3 - WARNINGS; DANGER; Carbon monoxide poisoning may lead to death!; Early signs of carbon monoxide poisoning; , pages 16 through 19 for complete information.
3 100351 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 shock, and carbon mono...
Page 4 - Continued; Right Side: 12 inches
4 100351 SAFETY INFORMATION Continued WARNING ICON G 001 WARNINGS Continued 6. Provide the following minimum heater clearances from combustibles (as viewed from the front of heater): Front: 48 inches Back: 6 inches Top: 53 inches Right Side: 12 inches Left Side: 6 inches 7. Do not run heater • where...
Page 5 - PRODUCT
5 100351 ControlKnob IgnitorButton Draft HoodOutlet forVentingSystem Figure 2 - Vented Natural Gas Heater, Rear View Figure 1 - Vented Natural Gas Heater ControlValve Lower FrontAccess Panel PRODUCT IDENTIFICATION
Page 6 - Piezo Ignition System; WARNING; dealer where you bought heater.; CHECK GAS TYPE; Before installing heater, make sure you have all items below.
6 100351 Install and use heater with care. Follow all local codes. In the absence of localcodes, use the latest edition of the following: • National Fuel Gas Code ANSI Z223.1, also known as NFPA 54 *• National Electrical Code ANSI/NFPA 70 * *Available from: American National Standards Institute, Inc...
Page 7 - CAUTION; For convenience and efficiency, install heater; Figure 3 - Heater Clearances
7 100351 INSTALLING HEATER Continued LOCATING HEATER WARNING ICON G 001 WARNING Maintain the minimum clearances shown in Figure 3,below. If you can, provide greater clearances. WARNING ICON G 001 WARNING Never install the heater • in a mobile home or a recreational vehicle.• where curtains, furnitur...
Page 8 - Venting/chimney materials are not supplied with heater.; VENTING HEATER; INSTALLING
8 100351 Note: Venting/chimney materials are not supplied with heater. VENTING HEATER INSTALLING HEATER Continued WARNING ICON G 001 WARNING This heater has a vent safety shut-off system. Thissystem shuts off the heater gas supply if you do notvent heater properly or the venting system is blocked.Do...
Page 9 - Do not vent heater in any of the following ways (see Figure 4).
9 100351 INSTALLING HEATER Continued VENTING HEATER (continued) WARNING ICON G 001 WARNING Do not vent heater in any of the following ways (see Figure 4). Heater must be vented to the out-doors. Never vent heater to anotherroom or inside a building. The vertical section of vent pipe mustextend at le...
Page 10 - Prefabricated or Masonry All-Fuel Chimney -; This is a masonry chimney or a; Figure 5 - Typical Construction of Venting Systems
10 100351 VENTING HEATER (continued) INSTALLING HEATER Continued Proper Size Vent To safely vent heater, the vent connector pipe must be the same diameter as the drafthood outlet on the rear of the heater. Pipe that is too small can cause flue gas to spillfrom the heater. Fasten vent connector to th...
Page 11 - Figure 6 - Connecting Heater to Utility Gas Line; If the supply line branches
11 100351 INSTALLING HEATER Continued CONNECTING TO GAS SUPPLY WARNING ICON G 001 WARNING A qualified service person must connect heater to gassupply. Follow all local codes. WARNING ICON G 001 WARNING Never connect heater to private (non-utility) gas wells.This gas is commonly known as well-head ga...
Page 12 - Figure 7 - Gas Connection; Use two pipe wrenches when connecting gas piping to gas control
12 100351 Figure 7 - Gas Connection * An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is anacceptable alternative to test gauge connection. Purchase the optional A.G.A.design-certified manual shutoff valve from your dealer. See Accessories, page 35. ** For purposes of input adj...
Page 13 - Test Pressures In Excess of 1/2 PSIG; pipe. Pressures in excess of 1/2 PSIG will damage heater regulator.; Test Pressures Equal To or Less Than 1/2 PSIG; main gas valve located on or near gas meter.; Pressure Testing Heater Gas Connections; internal joints for leaks.; Figure 8 - Manual Shutoff Valve
13 100351 INSTALLING HEATER Continued CHECKING GAS CONNECTIONS Pressure Testing Gas Supply Piping System Test Pressures In Excess of 1/2 PSIG 1. Disconnect heater and its individual manual shutoff valve from gas supply pipe. Pressures in excess of 1/2 PSIG will damage heater regulator. 2. Cap off op...
Page 14 - Locate the glass panel package inside the back of the heater.; Glass panels may have sharp edges. Handle with care.; Figure 9 - Removing Lower Front Access Panel
14 100351 INSTALLING HEATER Continued INSTALLING GLASS PANEL 1. Locate the glass panel package inside the back of the heater. WARNING ICON G 001 CAUTION Before installing glass panels, inspect the edges. If younotice any chips or cracks, do not install. If the surface oneither side is deeply scratch...
Page 15 - all the way to the left side.
15 100351 INSTALLING HEATER Continued 2 1 GlassPanel Lower GlassRetainingChannel Figure 11 - Inserting Top Edge of Glass Panel into Upper Glass Retaining Channel 2 1 GlassPanel Lower GlassRetainingChannel Upper GlassRetainingChannel Lower FrontAccess Area Figure 12 - Inserting Glass into Lower Retai...
Page 17 - Figure 13 - Checking for Draft Spillage; This shows there is enough fresh air in area for; DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION; NOTICE; Ventilating Confined; Follow the steps below to see if enough fresh air is available.
17 100351 FRESH AIR FOR COMBUSTION AND VENTILATION Continued Typical Water Heater Match Draft Hood Vent Pipe Heater Match Draft Hood Opening Vent Pipe Figure 13 - Checking for Draft Spillage No Draft Hood Spillage: This shows there is enough fresh air in area for appliances. Turn off all exhaust fan...
Page 18 - Figure 14 - Ventilation Air from Outdoors; IMPORTANT; This is a hazardous situation. Draft hood spillage re-; Providing Permanent Fresh-Air Ventilation
18 100351 FRESH AIR FOR COMBUSTION AND VENTILATION Continued Figure 14 - Ventilation Air from Outdoors IMPORTANT Do not provide openings for inlet or outlet air into atticif attic has a thermostat controlled power vent. Chimney or Gas Vent OutletAir VentilatedAttic OutletAir InletAir Inlet Air Venti...
Page 19 - Figure 15 - Ventilation Air from Inside Building; Ventilating Confined Area; This fresh air would come from an adjoining open area or outdoors.
19 100351 FRESH AIR FOR COMBUSTION AND VENTILATION Continued Figure 15 - Ventilation Air from Inside Building Example 2: Locating Heater in Confined (Closed) Area NOTICE A confined area has an air volume of less than 50 cubicfeet for each 1000 BTU/Hr input rating of all appliancesin the area (cubic ...
Page 20 - Figure 16 - Control Knob and Ignitor Button; FOR YOUR SAFETY READ BEFORE LIGHTING; Make sure manual shutoff valve is fully open.; LIGHTING INSTRUCTIONS
20 100351 OPERATING HEATER PILOT HIGH LOW DEPRESS FOR OFF Figure 16 - Control Knob and Ignitor Button Control Knob FOR YOUR SAFETY READ BEFORE LIGHTING NOTICE If operating heater for the first time, a slight odor will occur.This odor will go away after a few hours of operation. WARNING ICON G 001 WA...
Page 21 - OPERATING; Figure 17 - Viewing Pilot
21 100351 5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near thefloor. If you smell gas, STOP! Follow “B” in the safety information at the top ofpage 20. If you don’t smell gas, go to the next step. 6. Turn control knob clockwise Clockwise to the PILOT position. Fully ...
Page 22 - MANUAL LIGHTING PROCEDURE; Remove lower front access panel on heater.; Shutting Off Heater
22 100351 MANUAL LIGHTING PROCEDURE 1. Remove lower front access panel on heater. 2. Locate pilot. Pilot is attached to the front of burner. 3. Follow steps 1 through 6 under Lighting Instructions, pages 20 and 21. 4. With control knob depressed, strike match. Hold match to pilot until pilot lights....
Page 23 - Check pilot flame pattern and burner flame pattern often.; PILOT FLAME PATTERN; Figure 18 - Correct Pilot; BURNER FLAME PATTERN; To view burner flame, look through front glass of heater.
23 100351 INSPECTING PILOT AND BURNER FLAME 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 willprevent the t...
Page 24 - Figure 21 - Incorrect Burner Flame Patterns; If burner flame pattern is incorrect, as shown in Figure 20; Figure 20 - Correct Burner Flame Pattern
24 100351 INSPECTING PILOT AND BURNER FLAME Continued Sharp BlueFlame HighYellowFlame FlameLiftingOff ofBurner Figure 21 - Incorrect Burner Flame Patterns If burner flame pattern is incorrect, as shown in Figure 20 • turn heater off (see To Turn Off Gas to Appliance, page 22)• see Troubleshooting, p...
Page 25 - Turn off heater and let cool before cleaning or servicing.; CLEANING; Air Passageways; • Use a vacuum cleaner or pressurized air to clean.; Exterior; cabinet to remove dust.
25 100351 WARNING ICON G 001 WARNING Turn off heater and let cool before cleaning or servicing. WARNING ICON G 001 WARNING Keep heater clear and free from combustible materials,gasoline, and other flammable vapors and liquids. WARNING ICON G 001 CAUTION You must keep control areas, burner, and circu...
Page 26 - SHOOTING; REMEDY
26 100351 TROUBLE- SHOOTING Note: All troubleshootingitems are listed in order ofoperation. WARNING ICON G 001 WARNING Turn off and unplug heater and let cool before servicing.Unless you need gas supply for testing, shut off manualshutoff valve before servicing. Only a qualified serviceperson should...
Page 30 - Figure 22 - Removing Control Valve and Burner Tube
30 100351 SERVICE PROCEDURES Removing Control Valveand Burner Tube 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (seeFigure 22). 4. Remove pilot gas line from control valve (seeFigure 22). 5. Disconnect wire connec- tors...
Page 31 - Removing Burner
31 100351 SERVICE PROCEDURES Continued Removing Burner 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (seeFigure 23). 4. Remove orifice holder from burner (see Figure23). 5. Remove pilot burner bracket nuts and removepilo...
Page 32 - Changing Burner Orifice
32 100351 SERVICE PROCEDURES Continued Changing Burner Orifice 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (seeFigure 24). 4. Remove orifice holder from burner (see Figure24). 5. Use socket or open-end wrench to remove...
Page 33 - Model; SPECIFICATIONS; When gas pressure is too low; SERVICE
33 100351 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. 35,000 BTU/Hr 50,000 BTU/Hr Model Model BTU 35,000 50,000 Type Gas Natural Only Natural Only Ignition Piezo...
Page 34 - age for parts replaced under warranty.; Parts Under Warranty; Parts Not Under Warranty; When calling DESA International, have ready; ORDERING
34 100351 Note: Use only original replacement parts. This will protect your warranty cover- age for parts replaced under warranty. Parts Under Warranty Contact your nearest dealer or call DESA International’s Technical Service De-partment at 1-800-323-5190. When calling DESA International, have read...
Page 35 - ACCESSORIES; BLOWER KIT - PART NUMBER GA6010
35 100351 ACCESSORIES BLOWER KIT - PART NUMBER GA6010 For all models. Provides better heat distribution.Makes heater more efficient. Complete installationand operating instructions provided with blower. Purchase these heater accessories from your local dealer. If they can not supplythese accessories...
Page 39 - NOTES
39 100351 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ____________________...
Page 40 - WARRANTY INFORMATION; INTERNATIONAL; DESA
40 100351 LIMITED WARRANTY COMFORT GLOW VENTED NATURAL GAS HEATERS LIMITED ONE YEAR WARRANTY This DESA product is warranted to the original purchaser to be free from defect in material and workmanship under normal use andmaintenance for a period of one year from the date of installation whether or n...
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