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Desa CGB35P manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per- sonal injury, or loss of life. FOR YOUR SAFETY — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO I[...]

  • Page 2

    2 100352 CONTENTS SECTION PAGE Safety Information ......................................................................... 3 Product Identification .................................................................... 5 Local Codes ................................................................................... 6 Unpacking ......................[...]

  • Page 3

    3 100352 SAFETY INFORMA TION W ARNINGS IMPORTANT: Read this owner’s manual carefully and completely be- fore trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning. DANGER Carbon monoxide poisoning may lead to d[...]

  • Page 4

    4 100352 SAFETY INFORMA TION Continued W ARNINGS Continued 7. 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 8. Do not run heater • where flammable liquids or vapors are used or stored • under dusty c[...]

  • Page 5

    5 100352 PRODUCT IDENTIFICA TION Lower Front Access Panel Figure 1 - Vented Propane Gas Heater Draft Hood Outlet for Venting System Control Valve Figure 2 - Vented Propane Gas Heater, Rear View Ignitor Button Control Knob[...]

  • Page 6

    6 100352 Install and use heater with care. Follow all local codes. In the absence of local codes, 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. 1430 Broadway New York, NY 10018 National [...]

  • Page 7

    7 100352 INST ALLING HEA TER Continued LOCATING HEATER WARNING ICON G 001 W ARNING Maintain the minimum clearances shown in Figure 3, below. If you can, provide greater clearances. WARNING ICON G 001 W ARNING Never install the heater • in a mobile home or a recreational vehicle. • where curtains, furniture, clothing, or other flam- mable object[...]

  • Page 8

    8 100352 Note: Venting/chimney materials are not supplied with heater. VENTING HEATER INST ALLING HEA TER Continued W ARNING This heater has a vent safety shut-off system. This system shuts off the heater gas supply if you do not vent heater properly or the venting system is blocked. Do not operate heater if not properly vented. Do not tamper with [...]

  • Page 9

    9 100352 INST ALLING HEA TER Continued VENTING HEATER (continued) WARNING ICON G 001 W ARNING 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 another room or inside a building. The vertical section of vent pipe must extend at least two feet above the highest point of any [...]

  • Page 10

    10 100352 VENTING HEATER (continued) INST ALLING HEA TER Continued Proper Size Vent To safely vent heater, the vent connector pipe must be the same diameter as the draft hood outlet on the rear of the heater. Pipe that is too small can cause flue gas to spill from the heater. Fasten vent connector to the draft hood outlet with a sheet metal screw. [...]

  • Page 11

    11 100352 INST ALLING HEA TER Continued CONNECTING TO GAS SUPPLY BULK PROPANE TANK VENT External Regulator Vent Pointing Down The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressur[...]

  • Page 12

    12 100352 Figure 7 - Gas Connection * An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable 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 adjustment. Installation must include a manual sh[...]

  • Page 13

    13 100352 INST ALLING HEA TER Continued CHECKING GAS CONNECTIONS Figure 8 - Manual Shutoff Valve P O On Position Off Position 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. [...]

  • Page 14

    14 100352 INST ALLING HEA TER 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 you notice any chips or cracks, do not install. If the surface on either side is deeply scratched, do not install. If these conditions exist,[...]

  • Page 15

    15 100352 INST ALLING HEA TER Continued 2 1 Glass Panel Lower Glass Retaining Channel Figure 11 - Inserting Top Edge of Glass Panel into Upper Glass Retaining Channel 2 1 Glass Panel Lower Glass Retaining Channel Upper Glass Retaining Channel Lower Front Access Area Figure 12 - Inserting Glass into Lower Retaining Channel 7. Lower glass into lower [...]

  • Page 16

    16 100352 FRESH AIR FOR COMBUSTION AND VENTILA TION W ARNING This heater must have fresh air for proper operation. If not, poor fuel combustion and improper venting of flue gases will result. Carbon monoxide poisoning from backed-up flue gases could occur. Read the following instructions to insure proper fresh air for this and other fuel-burning ap[...]

  • Page 17

    17 100352 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Example 1: Locating Heater in Unconfined (Open) Area NOTICE An unconfined area has a minimum air volume of 50 cubic feet for each 1000 BTU/Hr input rating of all appliances in the area (cubic feet equals length x width x height of area). Inc[...]

  • Page 18

    18 100352 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued Draft Hood Spillage: This is a hazardous situation. Draft hood spillage re- leases poisonous carbon monoxide gas into your home. DANGER Carbon monoxide poisoning may lead to death! If draft hood spillage occurs, check for blocked flue connectors, vent pipes, and chimneys. If you find blo[...]

  • Page 19

    19 100352 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued Ventilation Grills into Closet for Hot Water Heater Recommended Fresh Air Duct into Crawl Space in Furnace Area or in Closet with Water Heater Ventilation Grills Connecting Two Rooms to Meet Unconfined Space 12" 12" Figure 15 - Ventilation Air from Inside Building After providi[...]

  • Page 20

    20 100352 OPERA TING HEA TER 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 is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS • Do[...]

  • Page 21

    21 100352 5. 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 at the top of page 20. If you don’t smell gas, go to the next step. 6. Turn control knob clockwise Clockwise to the PILOT position. Fully depress control knob for five seconds. Not[...]

  • Page 22

    22 100352 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. 5. Follow steps 8 through 11 under Lighting Inst[...]

  • Page 23

    23 100352 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 pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will prevent the thermocouple from getting hot, causing the heater[...]

  • Page 24

    24 100352 INSPECTING PILOT AND BURNER FLAME Continued Sharp Blue Flame High Yellow Flame Flame Lifting Off of Burner Figure 21 - Incorrect Burner Flame Patterns Figure 20 - Correct Burner Flame Pattern If burner flame pattern is incorrect, as shown in Figure 21 • turn heater off (see To Turn Off Gas to Appliance , page 22) • see Troubleshooting[...]

  • Page 25

    25 100352 CLEANING AND MAINTENANCE 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 cabinet to remove dust. COMBUSTION CHAMBER AND BURNER Clean the combustion chamber and burner if you have run the heater with a high yellow flame. Incomp[...]

  • Page 26

    26 100352 TROUBLE- SHOOTING Note: All troubleshooting items are listed in order of operation. W ARNING Turn off and unplug heater and let cool before servicing. Unless you need gas supply for testing, shut off manual shutoff valve before servicing. Only a qualified service person should service and repair heater and venting system. CAUTION Never us[...]

  • Page 27

    27 100352 TROUBLE- SHOOTING Continued OBSERVED PROBLEM Pilot lights but flame goes out when control knob is released. Burner does not light after pilot is lit. Delayed ignition of burner. POSSIBLE CAUSE 1. Manual shutoff valve not fully open. 2. Control knob not fully pressed in. 3 . Control knob not pressed in long enough. 4. Safety interlock syst[...]

  • Page 28

    28 100352 TROUBLE- SHOOTING Continued OBSERVED PROBLEM Burner backfiring during combustion. Yellow flame during burner combustion. Slight smoke or odor during initial opera- tion. Burner fails to re- spond to thermostat. Heater produces a whistling noise when burner is lit. POSSIBLE CAUSE 1 . Burner orifice is clogged or damaged. 2. Burner damaged.[...]

  • Page 29

    29 100352 W ARNING TROUBLE- SHOOTING Continued 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 instructions. • If you cannot reach your ga[...]

  • Page 30

    30 100352 SER VICE PROCEDURES Removing Control Valve and Burner Tube 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (see Figure 22). 4. Remove pilot gas line from control valve (see Figure 22). 5. Disconnect wire connec- tors from thermocouple interrupter (see Figure 22)[...]

  • Page 31

    31 100352 SER VICE 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 (see Figure 23). 4. Remove orifice holder from burner (see Figure 23). 5. Remove pilot burner bracket nuts and remove pilot assembly (see Figure 23). 6. Move burner to [...]

  • Page 32

    32 100352 SER VICE 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 (see Figure 24). 4. Remove orifice holder from burner (see Figure 24). 5. Use socket or open-end wrench to remove the old orifice from the orifice holder. 6. Cl[...]

  • Page 33

    33 100352 TECHNICAL SER VICE 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 Propane Only Propane Only Ignition Piezo Piezo Pressure Regulator Setting 10.5" [...]

  • Page 34

    34 100352 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 ready • your name • your address • model numb[...]

  • Page 35

    35 100352 ACCESSORIES BLOWER KIT - PART NUMBER GA6010 For all models. Provides better heat distribution. Makes heater more efficient. Complete installation and operating instructions provided with blower. Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (se[...]

  • Page 36

    36 100352 ILLUSTRA TED P ARTS LIST Burner Assembly 3 4 8 10 11 1 2 5 6 7 9 12 13 14 15 16 17 18 19 28 27 7 35 Model 6 50 Model 11 24-2 20 21 23 26 22 17 16 4 24 24-1 24-3 24-4 25 7[...]

  • Page 37

    37 100352 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Ordering Replacement Parts on page 34 of this manual. P ARTS LIST Burner Assembly KEY PART NUMBER FOR NO. CGB50P CGB35P DESCRIPTION QTY. 1 100206-02 100206-01 Combustion Chamber 1 2 098324-02 098324-02 Control Knob 1 3 09715[...]

  • Page 38

    38 100352 ILLUSTRA TED P ARTS LIST Cabinet Assembly This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Ordering Replacement Parts on page 34 of this manual. 1 2 3 4 5 6 6 7 8 11 6 10 9 PART NUMBER FOR KEY NO. CGB50P CGB35P DESCRIPTION QTY. 1 100202-02 100202-01 Lower Front Panel 1 2 0[...]

  • Page 39

    39 100352 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ____[...]

  • Page 40

    LIMITED WARRANTY COMFORT GLOW VENTED PROPANE 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 and maintenance for a period of one year from the date of installation whether or not actual use begins on that date. It is the responsibility[...]