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UNVENTED (VENT-FREE)
INFRARED GAS HEATER
SAFETY INFORMATION AND
®
INSTALLATION MANUAL
For more information, visit www.desatech.com
For more information, visit www.desatech.com
VN18, VN18T
VP16, VP16T
VP26, VP26T
VN30, VN30T
VP16IT, VN18IT
VP22IT, VN25IT
Model VN30 Shown
WARNING: Improper installation,
WARNING: If the information in this manual is not
adjustment, alteration, service, or
followed exactly, a fire or explosion may result caus-
maintenance can cause injury or
ing property damage, per
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TABLE OF CONTENTS 2 SAFETY INFORMATION TABLE OF CONTENTS SPECIFICATIONS .................................................................... 18 SAFETY INFORMATION ............................................................ 2 TROUBLESHOOTING .............................................................. 19 LOCAL CODES ........................................................................... 3 ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 22 PRODUCT IDENTIFICATION .........................
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SAFETY INFORMATION 3 LOCAL CODES 3 PRODUCT IDENTIFICATION UNPACKING PRODUCT FEATURES SAFETY INFORMATION PRODUCT Continued IDENTIFICATION Control Knob 4. If you smell gas Ignitor Button • 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. Follow the gas supplier’s instructions • If you cannot reach your gas supplier, call the fire department 5. Always run
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AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation 4 AIR FOR COMBUSTION AND VENTILATION Unusually tight construction is defined as construction WARNING: This heater shall not be installed in a where: confined space or unusually tight construction un- a. walls and ceilings exposed to the outside atmosphere less provisions are provided for adequate combustion have a continuous water vapor retarder with a rating and ventilation air. Read the following instructions to -11 2 of one pe
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AIR FOR COMBUSTION AND VENTILATION 5 Determining Fresh-Air Flow For Heater Location 5 AIR FOR COMBUSTION AND VENTILATION Continued 4. Compare the maximum Btu/Hr the space can support with the actual DETERMINING FRESH-AIR FLOW FOR amount of Btu/Hr used. HEATER LOCATION __________________ Btu/Hr (maximum the space can support) Determining if You Have a Confined or __________________ Btu/Hr (actual amount of Btu/Hr used) Unconfined Space Example: 51,200 Btu/Hr (maximum the space can support) Use th
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AIR FOR COMBUSTION AND VENTILATION Ventilation Air 6 AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR 12" Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and Ventilation Grills Into Adjoining Room, one within 12" of the floor on the wall connecting the two spaces Ventilation Option 2 (see options 1 and 2, Figure
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INSTALLATION 7 Check Gas Type 7 Installation Items Locating Heater INSTALLATION NOTICE: This heater is intended for use as supple- WARNING: Never install the heater mental heat. Use this heater along with your primary • in a bedroom or bathroom heating system. Do not install this heater as your • in a recreational vehicle primary heat source. If you have a central heating • where curtains, furniture, clothing, or other flam- system, you may run system’s circulating blower mable objects are less
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INSTALLATION Thermostat Sensing Bulb 8 Installing Heater To Wall INSTALLATION Continued THERMOSTAT SENSING BULB Removing Front Panel Of Heater (Thermostat Models Only) 1. Remove the four painted screws, two on each side of front panel. 2. Pull bottom of front panel forward, then out. The thermostat sensing bulb has been placed inside the heater for protection during shipping. 3. Remove any remaining packaging materials. Locating Thermostat Sensing Bulb (for thermostat applications) 1. Remove fro
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INSTALLATION 9 Installing Heater To Wall (Cont.) 9 INSTALLATION Continued 2. Mark screw locations on wall (see Figure 8). Attaching To Wall Anchor Method Note: Only mark last hole on each end of mounting bracket. For attaching mounting bracket to hollow walls (wall areas between Insert mounting screws through these holes only. studs) or solid walls (concrete or masonry) 3. Remove tape and mounting bracket from wall. 1. Drill holes at marked locations using 5/16" drill bit. For solid walls (concr
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INSTALLATION Installing Heater To Wall (Cont.) 10 Mounting Heater To Floor INSTALLATION Continued Installing Bottom Mounting Screws MOUNTING HEATER TO FLOOR 1. Locate two bottom mounting holes. These holes are near bot- Mounting Base Feet to Heater tom on back panel of heater (see Figure 12). 1. Lay heater cabinet on its back on a table with the heater bot- 2. Mark screw locations on wall. tom overhanging the table edge. 3. Remove heater from mounting bracket. 2. Align holes in base foot with mo
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INSTALLATION 11 Connecting To Gas Supply 11 INSTALLATION Continued Typical Inlet Pipe Diameters CONNECTING TO GAS SUPPLY VN18(T), VP16(T), VN18IT, and VP16IT - 3/8" or greater VN30(T), VP26(T), VN25IT, and VP22IT - 1/2" or greater WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pres- Installation must include equipment shutoff valve, union, and sure regulator. plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be up
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INSTALLATION Checking Gas Connections 12 INSTALLATION Continued CHECKING GAS CONNECTIONS Pressure Testing Heater Gas Connections 1. Open equipment shutoff valve (see Figure 16). WARNING: Test all gas piping and connections 2. For natural gas open main gas valve located on or near gas for leaks after installing or servicing. Correct all leaks meter. For propane/LP gas open propane/LP supply tank valve. at once. 3. Make sure control knob of heater is in the OFF position. 4. Check all joints from
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OPERATING HEATER (NON-THERMOSTAT MODELS) 13 For Your Safety Read Before Lighting 13 Lighting Instructions OPERATING HEATER 5. Turn control knob to PILOT/IGN and press in. NON-THERMOSTAT MODELS Note: You may be running this heater for the first time FOR YOUR SAFETY READ after hooking up to gas supply. If so, you may need to press in control knob for 30 seconds or more. This will allow air BEFORE LIGHTING to bleed from the gas system. • If control knob does not pop up when released, contact a WAR
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OFF MED LOW HI PILOT HI MED OPERATING HEATER (NON-THERMOSTAT MODELS) To Select Heating Level 14 To Turn Off Gas To Appliance Manual Lighting Procedure OPERATING HEATER (THERMOSTAT MODELS) For Your Safety Read Before Lighting OPERATING HEATER NON-THERMOSTAT MODELS (Continued) TO SELECT HEATING LEVEL MANUAL LIGHTING PROCEDURE 1. Remove front panel (see Figure 7, page 8). WARNING: When running heater, set control 2. Follow steps 1 through 5 under Lighting Instructions, page 13. knob at LOW, MEDIUM
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OFF OFF HI HI HI LO OPERATING HEATER (THERMOSTAT MODELS) 15 Lighting Instructions 15 OPERATING HEATER THERMOSTAT MODELS (Continued) Ignitor Control LIGHTING INSTRUCTIONS Button Knob 1. STOP! Read the safety information, column 2 page 14. 2. Make sure equipment shutoff valve is fully open. IGNITOR 3. Turn thermostat control knob clockwise to the OFF Clockwise position (see Figure 22 or 23 for your model). Figure 22 - Control Knob In The OFF Position, Models VP16T, VN18T, VP26T, & VN30T 4. Wait f
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1 3 2 1 2 1 OPERATING HEATER (THERMOSTAT MODELS) To Select Heating Level 16 To Turn Off Gas To Appliance Thermostat Operation Manual Lighting Procedure OPERATING HEATER THERMOSTAT MODELS Continued TO SELECT HEATING LEVEL TO TURN OFF GAS TO APPLIANCE INFRASTAT MODELS VP16IT, VN18IT, P26IT, Shutting Off Heater & VN30IT ONLY 1. Turn thermostat control knob clockwise to the OFF Clockwise position. WARNING: When running heater, set control knob 2. Turn off all electric power to the appliance if ser
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INSPECTING HEATER 17 Pilot Flame Pattern 17 Burner Flame Pattern CLEANING AND MAINTENANCE ODS/Pilot and Burner Cleaning Burner Pilot Air Inlet Cabinet INSPECTING HEATER CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. In- Check pilot flame pattern and burner flame pattern often. spect these areas of heater before each use. Have PILOT FLAME PATTERN heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to ex
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SPECIFICATIONS 18 SPECIFICATIONS VN18, VN18T VN18IT VN30, VN30T VN25IT Btu (Variable) 6,600/12,000/18,000 6,600/18,000 6,600/18,000/30,000 7,000/25,500 Type Gas Natural Only Natural Only Natural Only Natural Only Ignition Piezo Piezo Piezo Piezo Pressure Regulator Setting 6" W.C. 6" W.C. 6" W.C. 6" W.C. Inlet Gas Pressure* (in. of water) Maximum 10.5" 10.5" 10.5" 10.5" Minimum 7" 7" 7" 7" Dimensions, Inches (H x W x D) Heater 24.25 x 18.25 x 7 24.25 x 18.25 x 7 24.25 x 25.75 x 7 24.25 x 25.75 x
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TROUBLESHOOTING 19 19 TROUBLESHOOTING CAUTION: Never use a wire, WARNING: Turn off and un- needle, or similar object to clean plug heater and let cool before Note: For additional help, visit DESA ODS/pilot. This can damage ODS/ servicing. Only a qualified ser- International’s technical service web site pilot unit. vice person should service and at www.desatech.com. repair heater. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignit
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TROUBLESHOOTING 20 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame goes out when 1. Control knob not fully pressed in 1. Press in control knob fully control knob is released 2. Control knob not pressed in long enough 2. After ODS/pilot lights, keep control knob pressed in 30 seconds 3. Equipment shutoff valve not fully open 3. Fully open equipment shutoff valve 4. Thermocouple connection loose at con- 4. Hand tighten until snug, then tighten 1/4 trol v
