Instruction/ maintenance manual of the product VMH3000TNA Desa
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Save this manual for future reference. OWNER’S OPERA TION AND INST ALLA TION MANUAL VENT -FREE NA TURAL GAS MINI-HEAR TH ® HEA TER VMH3000TNA 15,000 to 30,000 Btu/Hr with Thermostat 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.
2 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com 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, ANS Z223.
3 107097 OWNER’S MANUAL For more information, visit www.desatech.com 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 room heaters.
4 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com Truss-Head Screw Nut Front Panel Figure 4 - Attaching Brass Front Trim to Front Panel Brass Front Trim Figure.
5 107097 OWNER’S MANUAL For more information, visit www.desatech.com 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 air in.
6 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space.
7 107097 OWNER’S MANUAL For more information, visit www.desatech.com VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space.
8 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com 3" FLOOR CEILING 36" Minimum 6" Minimum From Sides Of Heater Left Side Right Side Figure 9 - M.
9 107097 OWNER’S MANUAL For more information, visit www.desatech.com Thermostat Sensing Bulb Clamp THERMOSTAT SENSING BULB The thermostat sensing bulb has been placed inside the heater for protection during shipping. Locating Thermostat Sensing Bulb 1.
10 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com INST ALLA TION Continued Figure 12 - Folding Anchor Figure 13 - Popping Open Anchor Wings For Thin Walls Fig.
11 107097 OWNER’S MANUAL For more information, visit www.desatech.com INST ALLA TION Continued Continued Figure 16 - Attaching Heater to Hearth Base Figure 17- Placing Hearth Insert on Heater Base and Attaching Brass Base Trim Mounting Heater to Optional Hearth Base 1.
12 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com INST ALLA TION Continued C. MOUNTING HEATER TO OPTIONAL MANTEL See Instructions Included With Mantel Kit. Assembling Mantel IMPORTANT: Only use the optional man- tels specified in this manual.
13 107097 OWNER’S MANUAL For more information, visit www.desatech.com 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 (control valve) and equip- ment shutoff valve from gas supply pip- ing system.
14 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com OPERA TING HEA TER TO TURN OFF GAS TO APPLIANCE Pilot Burner Thermocouple Figure 22 - Pilot 7. Keep contr ol knob pressed in f or 30 seconds after lighting pilot.
15 107097 OWNER’S MANUAL For more information, visit www.desatech.com OPERA TING HEA TER Continued THERMOSTAT CONTROL OPERATION The thermostatic control used on this heater differs from standard thermostats. Standard thermostats simply turn on and off the burner.
16 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com TROUBLESHOOTING WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified ser- vice person should service and repair heater. REMEDY 1.
17 107097 OWNER’S MANUAL For more information, visit www.desatech.com REMEDY 1. Clean burner (see Cleaning and Mainte- nance , page 19) or replace burner orifice 2. Replace burner orifice 3. Contact local natural gas company 1. Contact local natural gas company 2.
18 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com TROUBLESHOOTING Continued 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.
19 107097 OWNER’S MANUAL For more information, visit www.desatech.com 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. W ipe the cabi- net to remove dust.
20 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com ILLUSTRA TED PA R T S BREAKDOWN VMH3000TNA 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 1.
21 107097 OWNER’S MANUAL For more information, visit www.desatech.com P ARTS LIST VMH3000TNA 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.
22 107097 NA TURAL GAS RESIDENTIAL HEA TERS ® For more information, visit www.desatech.com TECHNICAL SER VICE You may have further questions about in- stallation, operation, or Trouble Shooting. If so, contact DESA International’s Techni- cal Service Department at 1-800-323-5190.
23 107097 OWNER’S MANUAL For more information, visit www.desatech.com PREMIER MANTEL Unfinished - GM903U Series Finished - GM902F Series White Lacquer Finish - GM904W (differs slightly from illustration) For use with heater. Features a built-in base.
KEEP THIS WARRANTY W ARRANTY INFORMA TION 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.
An important point after buying a device Desa VMH3000TNA (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 VMH3000TNA 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 VMH3000TNA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa VMH3000TNA you will learn all the available features of the product, as well as information on its operation. The information that you get Desa VMH3000TNA will certainly help you make a decision on the purchase.
If you already are a holder of Desa VMH3000TNA, 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 VMH3000TNA.
However, one of the most important roles played by the user manual is to help in solving problems with Desa VMH3000TNA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa VMH3000TNA 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
