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UNVENTED (VENT-FREE) INFRARED GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
MODELS GWRP16A, GWRN18A, GWRP26A, GWRN30A
GWRP16TA, GWRN18TA, GWRP26TA AND GWRN30TA
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 GWRP16A
- Page 1 UNVENTED (VENT-FREE) INFRARED GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL MODELS GWRP16A, GWRN18A, GWRP26A, GWRN30A GWRP16TA, GWRN18TA, GWRP26TA AND GWRN30TA 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 .......... Service Hints ............. 17 Local Codes............4 Technical Service..........17 Product Identification ........... 4 Troubleshooting ..........18 Unpacking............4 Specifications ............ 1 Product Features ..........4 Illustrated Parts Breakdown and Parts List.. Air For Combustion and Ventilation ..... -
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 odorless. An odor-making mable vapors and liquids. agent is added to these gases. The odor helps 1. -
Page 4: Local Codes
SAFETY INFORMATION PRODUCT Continued IDENTIFICATION Control Knob 12. Operating heater above elevations of Ignitor Button 4,500 feet (1,371 m) could cause pilot outage. 13. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. (45 kg) 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 The space in the above example is a confined space because the actual Btu/Hr used is more AND VENTILATION than the maximum Btu/Hr the space can sup- Continued port. You must provide additional fresh air. Your options are as follows: DETERMINING FRESH-AIR FLOW A.
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Page 7: Installation
AIR FOR COMbUSTION INSTALLATION AND VENTILATION NOTICE: This heater is intended Continued for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. 12" If you have a central heating system, you may run system’s circulating Ventilation Grills blower while using heater. - Page 8 INSTALLATION IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing Continued heater in rooms without enough ventilation LOCATING HEATER air may cause mildew to form from too much moisture. See Air for Combustion and Ventila- This heater is designed to be mounted on a wall. tion, page 5.
- Page 9 INSTALLATION Marking Screw Locations 1. Tape mounting bracket to wall where Continued heater will be located. Make sure mount- INSTALLING HEATER TO WALL ing bracket is level. Mounting Bracket WARNING: Maintain minimum Locate mounting bracket in heater carton. Re- move mounting bracket from heater carton. clearances shown in Figure 8.
- Page 10 INSTALLATION 2. Mark screw locations on wall. 3. Remove heater from mounting bracket. Continued 4. If installing bottom mounting screws into Attaching To Wall Anchor Method hollow or solid wall, install wall anchors. For attaching mounting bracket to hollow Follow steps 1 through 4 under Attaching walls (wall areas between studs) or solid walls To Wall Anchor Method.
- Page 11 INSTALLATION IMPORTANT: For natural gas, check gas line pressure before connecting heater to gas line. Continued Gas line pressure must be no greater than 3. Align holes in base foot with mounting holes 10.5" of water. If gas line pressure is higher, on bottom of cabinet (see Figure 13).
- Page 12 INSTALLATION Install sediment trap in supply line as shown in Figure 15. Locate sediment trap where it Continued is within reach for cleaning. Locate sediment IMPORTANT: Install an equipment shutoff trap where trapped matter is not likely to valve in an accessible location. The equip- freeze.
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Page 13: Operating Heater
INSTALLATION Thermostat Gas Valve Continued 4. Check all joints of gas supply piping system. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Meter 5. Correct all leaks at once. 6. Reconnect heater and equipment shutoff valve to gas supply. - Page 14 OPERATING HEATER to Troubleshooting, page 18 or contact a qualified service person or gas supplier for Continued repairs. Until repairs are made, light pilot WHAT TO DO IF YOU SMELL GAS with match. To light pilot with match, see Manual Lighting Procedure, page 15. •...
- Page 15 Control Knob Burners OPERATING HEATER Continued TO SELECT HEATING LEvEL WARNING: When running heater, set control knob at LOW, Figure 23 - Burner Patterns MED or HI locked positions. Never set control knob between TO TURN OFF GAS locked positions. Poor combus- TO APPLIANCE tion and higher levels of carbon Shutting Off Heater...
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Page 16: Inspecting Heater
INSPECTING HEATER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 24 shows a correct pilot flame pattern. Figure 25 shows an incorrect pilot flame pat- tern. The incorrect pilot flame is not touching Figure 26 - Correct Burner Flame Pattern the thermocouple. -
Page 17: Service Hints
If you don't serial numbers of your heater ready. follow directions on the can, you could dam- You can also visit DESA Heating Products’ tech- age the pilot assembly. nical service web site at www.desatech.com. -
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 2. After ODS/pilot lights, keep is released 2. Control knob not pressed in control knob pressed in 30 long enough seconds...
- Page 20 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 21: Specifications
SPECIFICATIONS GWRN18A AND GWRN18TA GWRP16A AND GWRP16TA • Natural Gas • Propane/LP Gas • 18,000 Btu/hr (GWRN18 is variable) • 16,000 Btu/hr (GWRP16 is variable) • Piezo Ignition • Piezo Ignition • Pressure Regulator Setting: 6" W.C. • Pressure Regulator Setting: 8" W.C. -
Page 22: Illustrated Parts Breakdown
ILLUSTRATED PARTS bREAkDOWN CABINET BODY MODELS GWRP16A, GWRN18A, GWRP26A, GWRN30A, GWRP16TA, GWRN18TA, GWRP26TA AND GWRN30TA See pages 4 and 5 www.desatech.com 119346-01B... - Page 23 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. NO. PART NO. DESCRIPTION 107673-01 Front Panel • • • • 107676-01 Front Panel •...
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Page 24: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS bREAkDOWN AND PARTS LIST BURNER ASSEMBLY MODELS GWRP16A, GWRN18A, GWRP26A AND GWRN30A This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. Burner Assembly... - Page 25 ILLUSTRATED PARTS bREAkDOWN AND PARTS LIST BURNER ASSEMBLY MODELS GWRP16TA, GWRN18TA, GWRP26TA AND GWRN30TA This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. Burner Assembly Burner Assembly GWRP26TA and GWRN30TA GWRP16TA and GWRN18TA...
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Page 26: Replacement Parts
This will protect your warranty coverage for cessories, either contact your nearest Parts parts replaced under warranty. Central (see page 27) or call DESA Heating PARTS UNDER WARRANTY Products at 1-866-672-6040 for referral in- Contact authorized dealers of this product. If formation. -
Page 27: 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.