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Desa VMH3000TPA - page 1
VENT -FREE HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL Save this manual for future reference. Save this manual for future reference. For more information, visit www.desatech.com For more information, visit www.desatech.com TM RFN30T A RFP30T A VMH3000TNA VMH3000TP A 15,000 to 30,000 Btu/Hr with Thermostat Shown with Optional Mantel Which ...
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Desa VMH3000TPA - page 2
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 2 SAFETY INFORMA TION WARNINGS IMPORTANT: Read this owner ’ s manual carefully and completely before trying to assemble, operate, or ser- vice this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, elec ...
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Desa VMH3000TPA - page 3
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 3 3 LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54 *. *Available from: American National Standards Institute, Inc. 1430 Broad ...
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Desa VMH3000TPA - page 4
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 4 PRODUCT FEA TURES SAFETY PILOT This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent- free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. ...
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Desa VMH3000TPA - page 5
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 5 5 ATTACHING BRASS FRONT TRIM TO FRONT PANEL 1. Locate brass front trim in brass trim package. 2. Slide the head of two truss-head screws from hardware packet into each end of brass front trim (see Figure 4). 3. Line up screws with holes in front panel ...
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Desa VMH3000TPA - page 6
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 6 PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1. Unusu ...
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Desa VMH3000TPA - page 7
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 7 7 WARNING: If the area in which the heater may be operated is smaller than that defined as an uncon- fined space or if the building is of unusually tight construction, provide adequate combustion and ven- tilation air by one of the methods described i ...
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Desa VMH3000TPA - page 8
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 8 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 acce ...
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Desa VMH3000TPA - page 9
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 9 9 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 Figure 2, page 4). 2. Locate thermostat sensing bulb just und ...
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Desa VMH3000TPA - page 10
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 10 INST ALLA TION Continued Attaching To Wall Anchor Method For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry). 1. Drill holes at marked locations using 5/16" drill bit. For solid walls (c ...
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Desa VMH3000TPA - page 11
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 11 11 Note: It is an option to secure GHB802A model hearth base to floor. You must secure the GHB802B, GHB802C, or GHB38 series model hearth base to floor. To secure hearth base to floor, follow instructions under Securing Hearth Base to Floor , page 11 ...
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Desa VMH3000TPA - page 12
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 12 We recommend that you install a sediment trap in supply line as shown in Figure 19, below. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter ...
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Desa VMH3000TPA - page 13
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 13 13 INST ALLA TION Continued Pressure Testing Gas Supply Piping System Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) 1. Disconnect appliance with its appliance main gas valve (con- trol valve) and equipment shutoff valve from gas supply pip- ing syst ...
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Desa VMH3000TPA - page 14
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 14 OPERA TING HEA TER FOR YOUR SAFETY READ BEFORE LIGHTING A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follo w these instructions exactly . B. BEFORE LIGHTING smell all around the appliance ar ea for gas. Be sur ...
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Desa VMH3000TPA - page 15
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 15 15 TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. T urn contr ol knob clockwise Clockwise to the OFF position. 2. T urn off all electric power to the appliance if ser vice is to be perf ormed. Shutting Off Burner Only (pilot stays lit) Turn cont ...
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Desa VMH3000TPA - page 16
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 16 CLEANING AND MAINTENANCE CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more fr ...
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Desa VMH3000TPA - page 17
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 17 17 TROUBLESHOOTING OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot When ignitor button is pressed, there is spark at ODS/pilot but no ignition ODS/pilot lights but flame goes out when control knob is released CAUTION : ...
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Desa VMH3000TPA - page 18
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 18 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 smoke or odor during initial operation Heater produces a whistling noise when bu ...
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Desa VMH3000TPA - page 19
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 19 19 TROUBLESHOOTING Continued OBSERVED PROBLEM Heater produces a clicking/ticking noise just after burner is lit or shut off Heater produces unwanted odors Heater shuts off in use (ODS operates) Gas odor even when control knob is in OFF position Gas o ...
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Desa VMH3000TPA - page 20
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 20 SER VICE HINTS When Gas Pressure Is Too Low • pilot will not stay lit • burner will have delayed ignition • heater will not produce specified heat You may feel your gas pressure is too low. If so, contact your local natural gas supplier. TECHNI ...
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Desa VMH3000TPA - page 21
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 21 21 ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 24) or call DESA International at 1-866-672-6040 for information. You can also writ ...
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Desa VMH3000TPA - page 22
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 22 ILLUSTRA TED P ARTS BREAKDOWN RFN30TA RFP30TA VMH3000TNA VMH3000TPA 1 2 9 10 10 12 13 14 15 17 19 20 23 24 25 6 26 6 7 1 1 3 1 28 5 16 18 4 22 1 1 1 21 11 8 27 ILLUSTRATED PARTS BREAKDOWN ...
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Desa VMH3000TPA - page 23
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 23 23 P ARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 20 of this manual. PART NUMBER KEY RFN30TA RFP30TA NO. VMH3000TNA VMH3000TPA DESCRIPTION QTY. ...
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Desa VMH3000TPA - page 24
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 24 P ARTS CENTRALS These Parts Centrals are privately-owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Baltimore Electric 1348 Dixwell Avenue Hamden, CT 06514-0322 1-800-397-75 ...
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Desa VMH3000TPA - page 25
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 25 25 1. Where will the product be used? ❍ Living/Family Room ❍ Office/W arehouse ❍ Utility Shed/Outbuilding ❍ Garage ❍ Bedroom ❍ Bathroom ❍ Other 2. If you bought this product yourself, did you plan to purchase this type of product before ...
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Desa VMH3000TPA - page 26
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 26 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 Postage Required TM ...
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Desa VMH3000TPA - page 27
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 27 27 NOTES NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________ ...
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Desa VMH3000TPA - page 28
109889 For more information, visit www.desatech.com For more information, visit www.desatech.com 28 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com TM 109889-01 Rev. A 02/02 Model Serial No. Date Purchased NOT A UPC 109889 01 ...
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