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UNVENTED (VENT-FREE) BLUE FLAME GAS GARAGE HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
MODELS GN30A, GN30TA, GP30A, GP30TA,
RG30NA, RG30NTA, RG30PA AND RG30PTA
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• 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 gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.desatech.com
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Summary of Contents for Desa GN30A
- Page 1 UNVENTED (VENT-FREE) BLUE FLAME GAS GARAGE HEATER SAFETY INFORMATION AND INSTALLATION MANUAL MODELS GN30A, GN30TA, GP30A, GP30TA, RG30NA, RG30NTA, RG30PA AND RG30PTA WARNING: If the information in this manual is not fol- lowed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
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Page 2: Table Of Contents
TABLE OF CONTENTS Safety Information .......... Troubleshooting ..........18 Local Codes............4 Specifications ............ Product Identification ........... 4 Service Hints ............. Unpacking............4 Technical Service.......... Product Features ..........4 Service Publications .......... Air For Combustion And Ventilation ..... 5 Replacement Parts .......... -
Page 3: Safety Information
SAFETY INFORMATION Keep the appliance area clear Continued and free from combustible ma- terials, gasoline and other flam- Natural and pro- Natural and Propane/LP Gas: pane/LP gases are fuel gases. Fuel gases are mable vapors and liquids. odorless. An odor-making agent is added to 1. -
Page 4: Local Codes
SAFETY INFORMATION PRODUCT Continued IDENTIFICATION 12. Operating heater above elevations of Control Knob Heater 4,500 feet could cause pilot outage. Ignitor Button Cabinet 13. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. capacity. 14. -
Page 5: Air For Combustion And Ventilation
AIR FOR COMBUSTION Unusually Tight Construction The air that leaks around doors and windows AND VENTILATION may provide enough fresh air for combustion and ventilation. However, in buildings of un- WARNING: This heater shall usually tight construction, you must provide not be installed in a confined additional fresh air. - Page 6 AIR FOR COMBUSTION 4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr AND VENTILATION used. Continued ________ Btu/Hr (maximum can support) ________ Btu/Hr (actual amount used) DETERMINING FRESH-AIR FLOW Example: FOR HEATER LOCATION 51,200 Btu/Hr (maximum the space can Determining if You Have a Confined or support) Unconfined Space...
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Page 7: Installation
AIR FOR COMBUSTION Ventilated AND VENTILATION Outlet Attic Continued Outlet vENTILATION AIR A ir To Attic Ventilation Air From Inside Building This fresh air would come from an adjoining Crawl unconfined space. When ventilating to an Space Inlet adjoining unconfined space, you must provide two permanent openings: one within 12"... - Page 8 INSTALLATION CAUTION: This heater cre- Continued ates warm air currents. These INSTALLATION ITEMS currents move heat to wall sur- Before installing heater, make sure you have faces next to heater. Installing the items listed below. heater next to vinyl or cloth wall •...
- Page 9 INSTALLATION Front Panel Screw Continued THERMOSTAT SENSING BULB (Thermostat Models Only) The thermostat sensing bulb has been placed below the heater. 1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hardware package. 2. Snap clamp into upper mounting hole as shown in Figure 5.
- Page 10 INSTALLATION Attaching To Wall Anchor Method For attaching mounting bracket to hollow Continued walls (wall areas between studs) or solid walls 2. Mark screw locations on wall (see Figure 8). (concrete or masonry) Note: Only mark last hole on each end of 1.
- Page 11 INSTALLATION CONNECTING TO GAS SUPPLY Continued WARNING: This appliance Installing Bottom Mounting Screws requires a 3/8" NPT (National 1. Locate two bottom mounting holes. These Pipe Thread) inlet connection to holes are near bottom on back panel of the pressure regulator. heater (see Figure 12).
- Page 12 INSTALLATION IMPORTANT: Hold the pressure regulator with wrench when connecting it to gas pip- Continued ing and/or fittings. Do not over tighten pipe connection to regulator. The regulator body CAUTION: Use only new, could be damaged. black iron or steel pipe. Inter- Pressure Heater nally-tinned copper tubing may...
- Page 13 INSTALLATION 3. Check all joints from gas meter for natural gas (see Figure 16) or propane/LP supply Continued tank for propane/LP gas, to equipment shutoff valve (see Figure 17). Apply a CAUTION: For propane/LP noncorrosive leak detection fluid to all gas, make sure external regula- joints.
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Page 14: Operating Heater
OPERATING HEATER Turn control knob Thermostat Models: counterclockwise to the PILOT FOR YOUR SAFETY position. Press in control knob for five (5) seconds. READ BEFORE LIGHTING Press in and turn control Manual Models: knob counterclockwise to the PI- WARNING: If you do not fol- LOT position. - Page 15 OPERATING HEATER THERMOSTAT CONTROL OPERATION Continued The thermostatic control used on these models differs from standard thermostats. WARNING: Always operate Standard thermostats simply turn on and off manual control heaters at the the burner. The thermostat used on this heater locked positions.
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Page 16: Inspecting Heater
INSPECTING HEATER BURNER FLAME PATTERN Check pilot flame pattern and burner flame WARNING: If yellow tipping pattern often. occurs, your heater could pro- PILOT FLAME PATTERN duce increased levels of carbon Figure 21 shows a correct pilot flame pattern. monoxide. Figure 22 shows an incorrect pilot flame pat- tern. -
Page 17: Cleaning And Maintenance
CLEANING AND 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty min- MAINTENANCE utes. 2. Inspect burner, pilot for dust and dirt. WARNING: Turn off heater 3. Blow air across the ports/slots and holes and let cool before cleaning. -
Page 18: Troubleshooting
TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before 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. Note: All troubleshooting items are listed in order of operation. OBSERvED PROBLEM POSSIBLE CAUSE REMEDY... - Page 19 TROUBLESHOOTING Continued OBSERvED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully 1. Press in control knob fully goes out when control knob pressed in is released 2. Control knob not pressed in 2. After ODS/pilot lights, keep long enough control knob pressed in 30 seconds...
- Page 20 TROUBLESHOOTING Continued OBSERvED PROBLEM POSSIBLE CAUSE REMEDY Yellow flame during burner 1. Not enough air 1. Check burner for dirt and combustion debris. If found, clean burner (see Cleaning and Maintenance, page 17) 2. Gas regulator defective 2. Replace gas regulator 3.
- Page 21 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. • Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas supplier’s instructions.
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Page 22: Specifications
You may feel your gas pressure is too low. If either contact your nearest Parts Central (see so, contact your local natural or propane/LP page 23) or call DESA Heating Products at 1- gas supplier. 866-672-6040 for referral information. When calling DESA Heating Products, have... -
Page 23: Accessories
Purchase these heater accessories from your local dealer. If they can not supply these ac- cessories, either contact your nearest Parts Central or call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual. - Page 24 ILLUSTRATED PARTS BREAkDOwN MODELS GN30A, GP30A, RG30NA AND RG30PA www.desatech.com 119345-01A...
- Page 25 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. NO. PART NO. DESCRIPTION QTY. 097159-04 Piezo Ignitor • • • • 107676-01 Front Panel •...
- Page 26 ILLUSTRATED PARTS BREAkDOwN MODELS GN30TA, GP30TA, RG30NTA AND RG30PTA www.desatech.com 119345-01A...
- Page 27 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. NO. PART NO. DESCRIPTION QTY. 097159-04 Piezo Ignitor • • • • 107676-01 Front Panel •...
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Page 28: Warranty Information
LIMITED wARRANTIES FOR NEw AND FACTORY RECONDITIONED PRODUCTS DESA Heating Products warrants this heater and any parts thereof, to be free of defects New Products: in materials and workmanship for two (2) years from the date of first purchase, when operated and maintained in accordance with the manufacturer's instructions.