® UNVENTED (VENT-FREE) INFRARED GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL Model VN30A Shown VN18A, VN18TA, VP16A, VP16TA, VP26A, VP26TA VN30A, VN30TA, VP16ITA, VP22ITA 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. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or the gas supplier. WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided.
SAFETY INFORMATION WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects, or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
SAFETY INFORMATION Continued 5. Always run heater with plaque control knob at the 1, 2, 3, or 4 locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result. 6. This heater needs fresh, outside air ventilation to run properly. This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, pages 5 through 7. 7.
AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes.
AIR FOR COMBUSTION AND VENTILATION Continued 1. Determine the volume of the space (length x width x height). Length x Width x Height =__________cu. ft. (volume of space) Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space) If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space. 2.
AIR FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.
INSTALLATION Continued WARNING: Never install the heater • in a bedroom or bathroom • in a recreational vehicle • where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the front, top, or sides of the heater • as a fireplace insert • in high traffic areas • in windy or drafty areas 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 CAUTION: This heater
INSTALLATION 16" Min. Adjoining Wall Continued 25 3/4" Only Insert Mounting Optional Screws Through Last 19 3/4" Hole On Each End Min. Floor 4 and 5 Plaque Heaters 12" Min. Adjoining Wall Methods For Attaching Mounting Bracket To Wall Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 14 inches apart from their centers. Attach mounting bracket to wall in one of two ways: 1. Attaching to wall stud 2.
INSTALLATION Continued 2. Fold wall anchor as shown in Figure 9. 3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall. 4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT: Do not hammer key! For thick walls (over 1/2" thick) or solid walls, do not pop open wings. 5. Place mounting bracket onto wall. Line up last hole on each end of bracket with wall anchors. 6. Insert mounting screws through bracket and into wall anchors.
INSTALLATION CONNECTING TO GAS SUPPLY Continued MOUNTING HEATER TO FLOOR Mounting Base Feet to Heater 1. Lay heater cabinet on its back on a table with the heater bottom overhanging the table edge. 2. Align holes in base foot with mounting holes on bottom of cabinet (see Figure 13). 3. Secure base foot to heater using sheet metal screws. 4. Repeat for other side. Mounting Base Feet to Floor (Where required by local code) 1. Remove front cover (see Removing Front Panel of Heater, page 8). 2.
Continued CAUTION: Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of volume will occur. Typical Inlet Pipe Diameters VN18A, VN18TA, VP16A, VP16TA, and VP16ITA - 3/8" or greater VN30A, VN30TA, VP26A, VP26TA, and VP22ITA - 1/2" or greater Installation must include equipment shutoff valve, union, and plugged 1/8" NPT tap.
INSTALLATION 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 (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator. 2. Cap off open end of gas pipe where equipment shutoff valve was connected. 3.
OPERATING HEATER NON-THERMOSTAT MODELS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
MANUAL LIGHTING PROCEDURE OPERATING HEATER Continued TO SELECT HEATING LEVEL WARNING: When running heater, set control knob at LOW, MEDIUM, or HIGH locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result. CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. Slightly press in control knob and turn counterclockwise to the LOW, MED, or HI positions (see Figure 21).
OPERATING HEATER Continued LIGHTING INSTRUCTIONS C-clockwise CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. Ignitor Button Control Knob PI OFF LOT 1. STOP! Read the safety information, page 15, column 2. 2. Make sure equipment shutoff valve is fully open. 3. Turn thermostat control knob clockwise to the OFF position (see Figure 22 or 23 for your model). 4. Wait five minutes to clear out any gas. Then smell for gas, including near the floor.
OPERATING HEATER Continued TO SELECT HEATING LEVEL INFRASTAT MODELS VP16ITA, AND VP22ITA ONLY WARNING: When running heater, set control knob at the 1, 2, 3, or 4 locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result. CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. 1. Slightly press in plaque control knob on right side of heater and turn counterclockwise C-clockwise to the desired position.
INSPECTING HEATER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 27 shows a correct pilot flame pattern. Figure 28 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.
CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. 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 frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.
TROUBLESHOOTING Note: All troubleshooting items are listed in order of operation. 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. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed in, there is no spark at ODS/ pilot 1. Ignitor electrode positioned wrong 2. Ignitor electrode broken 3.
TROUBLESHOOTING OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released Burner(s) does not light after ODS/pilot is lit Continued POSSIBLE CAUSE 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Equipment shutoff valve not fully open 4. Thermocouple connection loose at control valve 5. Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out.
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. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. • • • • IMPORTANT: Operating heater where impurities in air exist may create odors.
SPECIFICATIONS VP16A, VP16TA VP16ITA VP26A, VP26TA VP22ITA Btu (Variable) 6,000/11,000/16,000 6,000/16,000 6,000/16,000/26,000 6,500/22,000 Type Gas Propane/LP Only Propane/LP Only Propane/LP Only Propane/LP Only Ignition Electronic Electronic Electronic Electronic Pressure Regulator Setting 8" W.C. 8" W.C. 8" W.C. 8" W.C. Inlet Gas Pressure* (in. of water) Maximum 14" 14" 14" 14" Minimum 11" 11" 11" 11" 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.
ILLUSTRATED PARTS BREAKDOWN CABINET BODY MODELS VP16A, VN18A, VP26A, VN30A, VP16TA, VN18TA, VP26TA, AND VN30TA 5 17 7 15 14 11 6 See Pages 28 through 31 4 8 16 Replacement may vary from grill shown See Pages 28 through 31 9 10 13 12 3 2 1 24 AAA Battery Negative UP www.desatech.
PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. KEY NO.
ILLUSTRATED PARTS BREAKDOWN CABINET BODY MODELS VP16ITA AND VP22ITA 7 11 5 18 17 14 6 See Page 30 8 15 16 4 Replacement may vary from grill shown A 10 See Page 30 B C 9 13 12 3 2 1 26 AAA Battery Negative UP www.desatech.
PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. KEY PART NUMBER NO.
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST BURNER ASSEMBLY MODELS VP16A AND VN18A This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. 1 2 5 6 8 1 2 3 7 ODS/Pilot 12 11 4 9 10 4 Burner Assembly VP16A, VN18A 28 KEY PART NUMBER NO.
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST BURNER ASSEMBLY MODELS VP26A AND VN30A This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. 1 2 5 6 7 1 2 8 ODS/Pilot 11 3 7 12 13 4 10 9 4 Burner Assembly VP26A, VN30A 113052-01A KEY PART NUMBER NO.
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST BURNER ASSEMBLY MODELS VP16ITA AND VP22ITA This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. 1 2 6 3 A 11 5 B C D 7 7 9 10 2 ODS/Pilot 6 3 7 12 A 7 15 5 13 B 14 1 C 7 4 11 7 7 12 Burner Assembly VP22ITA 1 2 13 9 4 10 8 Burner Assembly VP16ITA 30 KEY PART NUMBER NO.
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST BURNER ASSEMBLY MODELS VP16TA, VN18TA, VP26TA, AND VN30TA This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. 1 2 5 7 1 2 ODS/Pilot 6 3 5 4 Burner Assembly VP16TA, VN18TA 6 1 2 7 6 3 4 Burner Assembly VP26TA, VN30TA KEY NO.
REPLACEMENT PARTS SERVICE HINTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. When Gas Pressure Is Too Low • pilot will not stay lit • burner will have delayed ignition • heater will not produce specified heat • propane/LP gas supply may be low You may feel your gas pressure is too low. If so, contact your local natural or propane/LP gas supplier. PARTS UNDER WARRANTY Contact authorized dealers of this product.
ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 33), 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. FAN KITS - GA3250T For all models. Provides better heat distribution. Makes heater more efficient. Complete installation and operating instructions included.
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WARRANTY INFORMATION KEEP THIS WARRANTY 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. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied.