Instruction/ maintenance manual of the product RFN28TD Desa Tech
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Save this manual for future reference. ® VENT -FREE NA TURAL GAS RADIANT FLAME ® HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL 15,000 to 28,000 Btu/Hr with Thermostat Shown with Optional Ma.
2 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR 1. Use only natural gas. Do not convert heater to use different fuel type. 2. 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.
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4 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR WARNING: Always have burner shield and screen in place before operating heater. This pre- vents excessive temperatures on heater surfaces.
5 104779 OWNER’S MANUAL ASSEMBL Y Continued Assembling and Attaching Brass Trim 1. Remove packaging from remaining three pieces of brass trim. 2. Locate four brass screws, two adjust- ing plates with set screws, and two shims in the hardware packet.
6 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR 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.
7 104779 OWNER’S MANUAL 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 COMBU.
8 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR CAUTION: If you install the heater in a home garage • heater pilot and burner must be at least 18 inches above floor.
9 104779 OWNER’S MANUAL INST ALLA TION Continued THERMOSTAT SENSING BULB The thermostat sensing bulb has been placed inside the heater for protection during shipping. Locating Thermostat Sensing Bulb 1. Remove front panel of heater (see Fig- ure 2, page 4).
10 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR Installing Bottom Mounting Screws 1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 17). 2. Mark screw locations on wall. 3. Remove heater from mounting bracket.
11 104779 OWNER’S MANUAL Securing Hearth Base to Floor 1. Position hearth base in desired location. Mark holes for drilling (see Figure 18). Remove hearth base. 2 . For carpeted floor, make a small cut with a sharp knife at marked loca- tions before drilling.
12 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Test Gauge Connection * Tee Joint Pipe Nipple Cap Sediment Trap Pres.
13 104779 OWNER’S MANUAL 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 piping system. Pressures in excess of 1/2 psig will damage heater regulator .
14 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. T urn contr ol knob clockwise Clockwise to the OFF position. 2. T urn of f all electric power to the ap- pliance if service is to be perf ormed.
15 104779 OWNER’S MANUAL INCORRECT FLAME PATTERN AT HIGH POSITION CORRECT FLAME PATTERN AT HIGH POSITION Good Pilot-Nat. Port GRH/OV 007D INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 25 shows a correct pilot flame pat- tern.
16 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR Note: All troubleshooting items are listed in order of operation. TROUBLESHOOTING OBSERVED PROBLEM When ignitor button is pressed, the.
17 104779 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smo.
18 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR TROUBLESHOOTING Continued OBSERVED PROBLEM Heater produces a clicking/ticking noise just after burner is lit or shut off Heater produc.
19 104779 OWNER’S MANUAL TECHNICAL SER VICE You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Techni- cal Service Department at 1-800-323-5190. BTU (Variable) 15,000/28,000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3" W.
20 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR These Parts Centrals are privately-owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. P AR TS CENTRALS Master Parts Distributors 1184 Wilson Ave.
21 104779 OWNER’S MANUAL ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 20) or call DESA International’s Sales Department at 1-800- 458-2472 for information.
22 104779 VENT -FREE NA TURAL GAS HEA TER 15,000 TO 28,000 BTU/HR 12-1 12-2 1 2 9 10 11 12 17 18 19 21 22 23 8 20 7 1 3 5 16 4 25 24 1 6 13 14 15 26 10 ILLUSTRA TED PA R T S BREAKDOWN RFN28TD.
23 104779 OWNER’S MANUAL P AR TS LIST RFN28TD This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual.
104779-01 REV. A 5/98 Model Serial No. Date Purchased 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.
An important point after buying a device Desa Tech RFN28TD (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa Tech RFN28TD yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa Tech RFN28TD - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa Tech RFN28TD you will learn all the available features of the product, as well as information on its operation. The information that you get Desa Tech RFN28TD will certainly help you make a decision on the purchase.
If you already are a holder of Desa Tech RFN28TD, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa Tech RFN28TD.
However, one of the most important roles played by the user manual is to help in solving problems with Desa Tech RFN28TD. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa Tech RFN28TD along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
