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Desa CGP20LB - page 1
OWNER’S OPERA TION AND INST ALLA TION MANUAL BLUE-FLAME VENT -FREE PROP ANE/LP GAS HEA TER Save this manual for future reference. RP30E CGP20B CGP20LB 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 oth ...
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Desa CGP20LB - page 2
2 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME Carbon Monoxide Poisoning : Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others ...
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Desa CGP20LB - page 3
3 104412 OWNER’S MANUAL PRODUCT IDENTIFICA TION Figure 1 - Vent-Free Propane/LP Gas Heater PRODUCT FEA TURES SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. PIEZO IGNIT ...
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Desa CGP20LB - page 4
4 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME AIR FOR COMBUSTION AND VENTILA TION Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm a ...
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Desa CGP20LB - page 5
5 104412 OWNER’S MANUAL Continued WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1, Section 5.3 or applicable ...
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Desa CGP20LB - page 6
6 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME Figure 2 - Ventilation Air from Inside Building Or Remove Door into Adjoining Room, Option 3 Ventilation Grills Into Adjoining Room, Option 2 12" 12" Ventilation Grills into Adjoining Room, Option 1 AIR FOR COMBUSTION AND VENTILA TION Continued Outlet Air Ventilated Attic Outlet Air I ...
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Desa CGP20LB - page 7
7 104412 OWNER’S MANUAL 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 For convenience and efficiency, install heater • where there is easy access for operation, inspection, and service • where strong wind gusts from ...
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Desa CGP20LB - page 8
8 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME INSTALLING HEATER TO WALL Figure 5 - Mounting Bracket Location Removing Front Panel Of Heater 1. Remove two screws near bottom cor- ners of front panel. 2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4". 3. Pull bottom of front panel forward, then down ...
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Desa CGP20LB - page 9
9 104412 OWNER’S MANUAL Continued Figure 10 - Mounting Heater Onto Mounting Bracket Figure 11 - Installing Bottom Mounting Screws INST ALLA TION Continued Figure 8 - Folding Anchor Figure 9 - Popping Open Anchor Wings For Thin Walls Stand-Out Tab Mounting Bracket (attached to wall) Horizontal Slots Attaching to Wall Anchor Method For attaching mo ...
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Desa CGP20LB - page 10
10 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME Figure 13 - Gas Connection * A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design-certified equipment shutoff valve from your dealer. See Accessories , page 22. Install sediment tra ...
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Desa CGP20LB - page 11
11 104412 OWNER’S MANUAL ON POSITION OFF POSITION INST ALLA TION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once. 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 ...
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Desa CGP20LB - page 12
12 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. T ur n control knob clockwise to the PILO T position. 2. Press in control knob and tur n c lock- wise to the OFF position. 3. T urn off all electric power to the ap- pliance if service is to be perf ormed. Shutting Off Burner Only (pilot stay ...
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Desa CGP20LB - page 13
13 104412 OWNER’S MANUAL INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 18 shows a correct pilot flame pat- tern. Figure 19 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cool ...
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Desa CGP20LB - page 14
14 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool be- fore servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit. OBSERVED PROBLEM When ignitor button ...
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Desa CGP20LB - page 15
15 104412 OWNER’S MANUAL TROUBLESHOOTING Continued OBSERVED PROBLEM Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture ...
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Desa CGP20LB - page 16
16 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME TROUBLESHOOTING 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 ...
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Desa CGP20LB - page 17
17 104412 OWNER’S MANUAL REPLACEMENT PA R T S 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 replacement part(s), either contact your nearest Parts Central (see page 23) or call D ...
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Desa CGP20LB - page 18
18 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME 1 2 4 5 6 6 7 8 8 9 10 11 12 15 17 19 21 22 23 20 26 25 18 14 16 24 3 13 ODS/PILOT 10-1 10-2 ILLUSTRA TED PA R T S BREAKDOWN RP30E ...
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Desa CGP20LB - page 19
19 104412 OWNER’S MANUAL P AR TS LIST RP30E This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098345-01AC Front Panel 1 3 103476-02 Grill Guard 1 4 101108-01 Cli ...
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Desa CGP20LB - page 20
20 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME ODS/PILOT 12-1 12-2 1 2 3 4 5 6 8 8 9 10 10 11 12 13 14 17 19 25 21 23 24 7 22 27 26 20 16 18 15 ILLUSTRA TED PA R T S BREAKDOWN CGP20B CGP20LB ...
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Desa CGP20LB - page 21
21 104412 OWNER’S MANUAL P AR TS LIST CGP20B CGP20LB This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-03 Front Panel (CGP20B) 1 098742-19 Front Panel, Iv ...
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Desa CGP20LB - page 22
22 104412 VENT -FREE PROP ANE/LP GAS HEA TER BLUE-FLAME ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central or call DESA International’s Parts Department at 1-800-972-7879 for referral information. You can also write to the ad- dress listed on th ...
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Desa CGP20LB - page 23
23 104412 OWNER’S MANUAL P AR TS CENTRALS These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. When calling a Parts Central, ask for the Parts Department. Baltimore Electric 1348 Dixwell Avenue Hamden, CT 06514-0322 1-800-397-7553 203-248-7 ...
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Desa CGP20LB - page 24
KEEP THIS WARRANTY W ARRANTY INFORMA TION Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied. Model Serial No. Date Purchased LIMITED ...
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