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Desa VN30T Electric Heater User Manual

1. i Open Equipment Shutoff Valve eh Closed Figure 16 Equipment Shutoff Valve Thermostat Gas Valve Gas Meter ve Equipment a Shutoff Valve dy Figure 17 Checking Gas Joints for Natural Gas Propane LP Supply Tank Thermostat Gas Valve Equipment PN ara ROE CEGHyGOn z Shutoff Valve 107887 01E OPERATING HEATER NON THERMOSTAT MODELS OPERATING HEATER NON THERMOSTAT MODELS B FOR YOUR SAFETY READ p BEFORE LIGHTING WARNING If you do notfollow these instructions exactly a fire or explosion may result causing prop erty 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 WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric 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 de partment C Useonly your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified s
2. For more information visit WWW de N Ag 107887 01E PARTS LIST Cabinet Body Models VP16 VN18 VP26 VN30 VP16T VN18T VP26T VN30T PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 30 of this manual PART NUMBER VN18 VN18T DESCRIPTION 107672 01 107672 01 107672 01 107672 01 107675 01 107675 01 107675 01 107675 01 Front Panel 103476 01 103476 01 103476 01 103476 01 103476 02 103476 02 103476 02 103476 02 Grill Guard 104635 01 104635 01 104635 01 104635 01 104635 03 104635 03 104635 03 104635 03 Apron 107894 01 107894 01 107894 01 107894 01 107894 02 107894 02 107894 02 107894 02 Reflector Assembly id P s a d E s Cabinet Back Panel 097159 04 097159 04 097159 04 097159 04 097159 04 097159 04 097159 04 097159 04 Piezo Ignitor 099066 02 099066 02 099066 02 099066 02 099066 02 099066 02 099066 02 099066 02 Mounting Bracket 098271 09 098271 09 098271 09 098271 09 098271 09 098271 09 098271 09 098271 09 Ignitor Cable 098462 01 Fr 098462 01 mue 098462 01 p 098462 01 s Control Rod Assembly 098325 01 n 098325 01 I 098325 01 im 098325 01 RECS Roll Pin 098354 03 098354 03 098354 03 _ 098354 03 Control Knob 099415 18 099415 18 099415 19 099415 19 099415 18 099415 18 099415 19 099415 19 Gas Regul
3. Figure 6 Mounting Bracket For more information visit WWwM d Removing Front Panel Of Heater 1 Remove the four painted screws two on each side of front panel 2 Pull bottom of front panel forward then out 3 Remove any remaining packaging materials Figure 7 Removing Front Panel Of Heater 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 Attaching to wall anchor Attaching to Wall Stud This method provides the strongest hold Insert mounting screws through mounting bracket and into wall studs Attaching to Wall Anchor This method allows you to attach mounting bracket to hollow walls wall areas between studs or to solid walls concrete or masonry Decide which method better suits your needs Either method will provide a secure hold for the mounting bracket Marking Screw Locations 1 Tape mounting bracket to wall where heater will be located Make sure mounting bracket is level A WARNING Maintain minimum clearances shown in Figure 8 page 9 If you can provide greater clear ances from floor and joining wall esatech com 107887 01E INSTALLATION Installing Heater To Wall Cont INSTALLATION Continued 2 M
4. pilot should light A CAUTION Do not try to adjust heating levels by using the equipment shutoff valve Por more in d 107887 01E formation visit www desatech com OPERATING HEATER THERMOSTAT MODELS Lighting Instructions Control m I Knob Ignitor Button d IGNITOR uo Figure 22 Control Knob In The OFF Position Models VP16T VN18T VP26T amp VN30T Thermostat Plaque Control Knob Control Knob Ignitor Button Figure 23 Thermostat Control Knob In The OFF Position Models VP16IT VN18IT VP26IT amp VN30IT Thermocouple Figure 24 Pilot VP16T VN18T Control Knob Figure 25 Burner Patterns DESA OPERATING HEATER THERMOSTAT MODELS To Select Heating Level To Turn Off Gas To Appliance Thermostat Operation Manual Lighting Procedure OPERATING HEATER Continued INFRASTAT MODELS VP16IT VN18IT P26IT amp VN30IT ONLY TO SELECT HEATING LEVEL A 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 A 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 K 5 to the desired position IMPORTANT
5. the appliance should be located out of traffic and away from furniture and draperies Do not place clothing or other flammable material on or near the appliance Never place any objects on the heater Surface of heater becomes very hot when running heater Keep children and adults away from hot sur face to avoid burns or clothing ignition Heater will remain hot for a time after shutdown Allow surface to cool before touching Carefully supervise young children when they are in the same room with heater Make sure grill guard is in place before running heater Keep the appliance area clear and free from combus tible materials gasoline and other flammable vapors and liquids 1 This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases 2 Do not place propane LP supply tank s inside any structure Locate propane LP supply tank s outdoors 3 This heater shall not be installed in a bedroom or bathroom E tecn com 107887 01E SAFETY INFORMATION Continued 4 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 5 Always run heater w
6. Never insert objects into the pilot tube Clean the pilot assembly also A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly Thereis a small pilot air inlet about two inches from where the pilot flame comes out of the pilot assembly see Figure 31 With the unit off lightly blow air through the air inlet You may blow through a drinking straw if compressed air is not available Pilot Assembly Pilot Air Inlet Figure 31 Pilot Inlet Air CABINET Air Passageways Use a vacuum cleaner or pressurized air to clean Exterior Usea soft cloth dampened with a mild soap and water mixture Wipe the cabinet to remove dust SPECIFICATIONS SPECIFICATIONS Btu Variable Type Gas Ignition Pressure Regulator Setting Inlet Gas Pressure in of water Maximum Minimum Dimensions Inches H x W x D Heater Carton Weight pounds Heater Shipping VN18 VN18T 6 600 12 000 18 000 Natural Only Piezo 6 W C 10 5 Je 24 25 x 18 25 x7 26 25 x 21 25 x 9 20 25 Note Dimensions listed are outer most points on the heater includes control knobs and grill For purposes of input adjustment Btu Variable Type Gas Ignition Pressure Regulator Setting Inlet Gas Pressure in of water Maximum Minimum Dimensions Inches H x W x D Heater Carton Weight pounds Heater Shipping VP16 VP16T 6 000 11 000 16 000 Propane LP Only Piezo 8 W C 14 11 24 25
7. Other 12 Level of Education of Purchaser O Some High School Completed High School Completed College O Completed Graduate School 13 Age of Purchaser O Under 20 O 20 29 O30 39 O40 49 O50 59 O 60 or Over 14 Buyer s total annual household income O Under 15 000 O 15 000 to 19 999 O 20 000 to 34 999 O 35 000 to 49 999 O 50 000 to 74 999 O 75 000 to 99 999 O 100 000 and Over 15 Store where product was purchased Name City State 16 In choosing this product how important were the following Not Important Somewhat Important Very Important Availability Price Brand Name Overall Quality Heat Output Made in USA Warranty Local Service Value for Price Prior Brand Experience Controls Location Thermostat Remote or Manual Operation Ease of Operation Special Features Salesperson s Recommendation Friend Relative s Recommendation Portability Quiet Operation OOoO0ocococococoococococococooO OO0oO0ocococoocoocooococoooo OoocoocoococoocoocoocooooQo AdVL Postage Required DESA INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 TAPE NOTES NOTES Bor ors information visit www desatech com DESA 107887 01E WARRANT Y 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 specifi
8. Release downward pressure while turning control knob Control knob will lock at the desired position 2 Forstandard models T turn thermostat control knob on left side of heater to any setting between LO and HI For infrastat models IT set thermostat control knob at the 1 2 3 or 4 locked positions Note When burners cycle on from LO to HI or one locked positions to another a click will be heard When the burners light a whoosh noise will be heard Plaque VP16IT VP22IT Control Knob VN18IT VP25IT amp 778 NB co B Figure 26 Burner Patterns Models VP16IT VN18IT VP26IT amp VN3OIT For more information visit ww Y e TO TURN OFF GAS Shutting Off Heater 1 Turn thermostat control knob clockwise X to the OFF position 2 Turn off all electric power to the appliance if service is to be performed Shutting Off Burner Only pilot stays lit Turn thermostat control knob clockwise to the PILOT position THERMOSTAT OPERATION The thermostatic control used on these models differs from standard thermostats Standard thermostats simply turn on and off the burner The thermostat used on this heater senses the room temperature At times the room may exceed the set temperature If so the burner will shut off The burner will cycle back on when room temperature drops below the set tempera ture For standard models T the control knob can be set to any 2 comfort level betwee
9. WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric 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 de partment C Useonly your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service techni cian or gas supplier Force or attempted repair may result in a fire or explosion D Donotuse this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water itech com 107887 01E OPERATING HEATER LIGHTING Continued INSTRUCTIONS ae 1 STOP Read the safety information column 2 page 14 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 If you smell gas STOP Follow B in the safety information column 2 page 14 If you don t smell gas go to the next step 5 Turn thermostat control knob counterclockwise to the PILOT position Press in thermostat control knob for 5 seconds see Figure 22 or 23 fo
10. headaches dizziness or nausea If you have these signs the heater may not be working properly Get fresh air at once Have heater serviced Some people are more affected by carbon monoxide than others These include pregnant women people with heart or lung disease or anemia those under the influence of alcohol and those at high altitudes Natural and Propane LP Gas Natural and propane LP gases are fuel gases Fuel gases are odorless An odor making agent are added to fuel gases The odor helps you detect a fuel gas leak However the odor added to fuel gas can fade Fuel gas may be present even though no odor exists Make certain you read and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this heater A WARNING Any change to this heater or its controls can be dangerous A WARNING Do not use any accessory not ap proved for use with this heater For more information visit ww d SPECIFICATIONS irisi ane ertet te tents 18 TROUBLESHOOTING seen 19 ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST 22 REPLACEMENT PARTS esee 30 SERVICE HINTS e ee a Se ae fea 30 TECHNICAL SERVICE sese 30 SERVICE PUBLICATIONS esee 30 ACCESSORIES cnc tbe e eee eem s 30 OWNER S REGISTRATION FORM seseee 31 WARRANTY INFORMATION eeseeeneee Back Cover Due to high temperatures
11. heater clean In spect these areas of heater before each use Have heater inspected yearly by a qualified service person Heater may need more frequent cleaning due to exces sive lint from carpeting bedding material pet hair etc ODS PILOT AND BURNER Use a vacuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR INLET The primary air inlet holes allow the proper amount of air to mix with the gas This provides a clean burning flame Keep these holes clear of dust dirt and lint Clean these air inlet holes prior to each heating season Blocked air holes will create soot We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person We also recommend that you keep the burner tube and pilot assembly clean and free of dustand dirt To clean these parts we recommend using compressed air no greater than 30 PSI Your local computer store hardware store or home center may carry compressed air in a can You can use a vacuum cleaner in the blow position If using compressed air in a can please follow the directions on the can If you don t follow directions on the can you could damage the pilot assembly 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner pilot for dust and dirt 3 Blow air through the ports slots and holes in the burner 4
12. requires an external regulator not supplied Install the external regulator between the heater and pro pane LP supply For propane LP gas the installer must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pressure heater regulator damage could occur Install the external regulator with the vent pointing down as shown in Figure 14 Pointing the vent down protects it from freezing rain or sleet External Typical Inlet Pipe Diameters VNI8 T VP16 T VN18IT and VP16IT 3 8 or greater VN30 T VP26 T VN2SIT and VP22IT 1 2 or greater Installation must include equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 15 IMPORTANT Install an equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Apply pipe joint sealant lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves A WARNING Use pipe joint sealant that is resistant to liquid petroleum LP gas We recommend that you install a sediment trap in supply line as shown in Figure 15 Locate sediment trap where itis withi
13. 0 VP16 VP26 Control Knob OFF Figure 21 Burner Patterns for Non Thermostat Models al ro TURN OFF GAS ro APPLIANCE EI Shutting Off Heater 1 Turncontrol knob clockwise A N to the OFF position 2 Turn off all electric power to the appliance if service is to be performed Shutting Off Burner Only pilot stays lit Turn control knob clockwise w to the PILOT position For more information visit WWW d MANUAL LIGHTING 1 Remove front panel see Figure 7 page 8 Follow steps 1 through 5 under Lighting Instructions page 13 3 With control knob pressed in strike match Hold match to pilot until pilot lights 4 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow step 8 under Lighting Instructions page 13 5 Replace front panel OPERATING HEATER THERMOSTAT MODELS S FOR YOUR SAFETY READ E BEFORE LIGHTING WARNING If you do notfollow these instructions exactly a fire or explosion may result causing prop erty 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
14. 0 9 digit number located on product or identification tag First Name Last Name Address City State Zip Country Home Phone __ E Mail Please answer the following questions to register your product with DESA International 1 Where will the product be used O Living Family Room O Office Warehouse O Utility Shed Outbuilding Garage O Bedroom O Bathroom O Other If you bought this product yourself did you plan to purchase this type of product before going into the store O Yes O No Who selected the product O Male O Female O Both 4 What is the population of your area O Under 10 000 O 10 000 to 25 000 O 25 000 to 50 000 O 50 000 to 100 000 O 100 000 to 250 000 Over 250 000 5 What is your primary source of heat O Propane LP Gas O Fuel Oil O Wood O Natural Gas O Electric O Other 6 How was the product installed O Professional Installer Self O Other 7 Cost of product excluding sales tax 8 Cost to install product 9 Type of store where product was purchased O Hardware O Propane Dealer O Natural Gas Utility Co Home Center Builder s Supply O Fireplace or Hearth Shop O Farm Store O Other 10 What motivated you to buy this product Sudden Cold Weather Replace Older Model O D I Y Home Project O Emergency Back Up Heat O Heater was on Sale O Energy Savings High Efficiency Construction Project O Other 11 How did you learn about this product brand O Advertising O Relative or Friend Store Display O
15. 23 1 NFPA 54 Section 5 3 Air for Combustion oir RR and Ventilation for required size of ventilation grills or ducts Room Option 3 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 I NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermostat controlled power vent Heated air entering the attic will activate the power vent Figure 2 Ventilation Air from Inside Building ILEAN Ventilated Outlet Air Attic Outlet Air To Attic To Crawl Space Inlet Air I Ventilated Inlet Air Crawl Space Figure 3 Ventilation Air from Outdoors For more information visit WWW le yess ie ori 107887 01E INSTALLATION Check Gas Type Installation Items Locating Heater INSTALLATION NOTICE This heater is intended for use as supple mental heat Use this heater along with your primary heating system Do not install this heater as your primary heat source If you have a central heating System y
16. 8 NPT tap is an acceptable alternative to test gauge connection Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 30 7 W C to 10 5 W C INSTALLATION Checking Gas Connections INSTALLATION Continued CHECKING GAS CONNECTIONS A WARNING Test all gas piping and connections for leaks after installing or servicing Correctallleaks at once A WARNING Never use an open flame to check for aleak Apply a noncorrosive leak detection fluid to all joints Bubbles forming show a leak Correct all leaks at once A CAUTION For propane LP gas make sure exter nal regulator has been installed between propane LP supply and heater See guidelines under Connecting to Gas Supply page 11 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 con trol valve and equipment shutoff valve from gas supply pip ing system Pressures in excess of 1 2 psig will damage heater regulator Cap off open end of gas pipe where equipment shutoff valve was connected Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using com pressed air Check all joints of gas supply piping system Apply a noncorrosive leak detection fluid to all joints Bubble
17. 8 03 VP16IT 110803 02 110186 01 098200 04 099387 11 099218 01 098508 01 099056 01 VN18IT 110803 03 110186 01 098200 04 099387 11 099218 01 098508 01 099056 02 100605 01 107899 01 107892 02 107892 01 107892 03 100605 01 107899 01 107892 02 107892 01 107892 03 100615 01 100615 01 Bor mora information visit www desatech com DESCRIPTION ODS Pilot Thermocouple Kit Control Valve Bracket Pilot Tubing Burner Valve Retainer Nut Injector Plaque A Plaques B amp C for IT models only Injector Plaque B Control Valve Control Valve Tube Inlet Tubing Tubing Valve to Plaque A Tubing Valve to Plaque B Tubing Valve to Plaque C Tubing Valve to Plaque D Male Connector Outlet Tubing Valve to Burner 27 DESA ILLUSTRATED PARTS BREAKDOWN Burner Assembly Models VP26 VN30 VP26T VN30T VP22IT VN25IT ILLUSTRATED PARTS BREAKDOWN VP26 VN30 VP26T VN3OT VP22IT VN25IT Am i ODS PILOT 16 BURNER ASSEMBLY VP26T VN30T 107887 01E PARTS LIST Burner Assembly Models VP26 VN30 VP26T VN3OT VP22IT VN25IT PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 30 of this manual PART NUMBER VP26T VN30T VP22I
18. SIBLE CAUSE REMEDY Whenignitorbuttonispressedin thereisno 1 Ignitor electrode positioned wrong 1 Replace pilot assembly spark at ODS pilot 2 Ignitor electrode broken 2 Replace pilot assembly 3 Ignitor electrode not connected to igni 3 Reconnect ignitor cable tor cable Ignitor cable pinched or wet Broken ignitor cable Bad piezo ignitor Piezo ignitor nut is loose Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Replace ignitor cable Replace piezo Tighten nut holding piezo ignitor Nut is located inside heater cabinet at top When ignitor button is pressed in there is a spark at ODS Pilot but no ignition Por usciti 107887 01E Nn MO Gas supply turned off or equipment shutoff valve closed Control knob not fully pressed in while pressing ignitor button non thermostat models only Thermostat control knob not fully pressed in while pressing ignitor button thermostat models only Airin gas lines when installed Depleted gas supply propane LP gas ODS pilot is clogged Gas regulator setting is not correct Thermostat control knob is not in pilot position thermostat models only formation visit www desatech com Turn on gas supply or open equipment shutoff valve Turnto PILOT IGN position Fully press in control knob while pressing ignitor button non thermostat models only Fully press in thermostat control knob while pr
19. T VN25IT DESCRIPTION 110803 02 110803 03 110803 02 110803 03 110803 02 110803 03 ODS Pilot 110186 01 110186 01 110186 01 110186 01 110186 01 110186 01 Thermocouple Kit 098200 03 098200 03 awe es 098200 04 098200 04 Control Valve Bracket 105050 02 105050 02 105050 01 105050 01 099387 06 099387 06 Pilot Tubing 099218 07 099218 07 099218 07 099218 07 099218 03 099218 03 Burner 098508 01 098508 01 e 098508 01 098508 01 Valve Retainer Nut 099056 25 099056 24 099056 25 099056 24 099056 01 099056 06 Injector Plaque A C A Plaques B amp D IT models only 099056 01 099056 02 099056 01 099056 02 Injector Plaque B 100747 01 100747 01 100605 02 100605 02 Control Valve 107660 03 107660 03 103256 02 103256 02 Control Valve Tube Inlet Tubing 103353 04 103353 04 107900 02 107900 02 Tubing Valve to Plaque A 103353 05 103353 05 107900 04 107900 04 Tubing Valve to Plaque B 103353 06 103353 06 107900 01 107900 01 Tubing Valve to Plaque C 107900 03 107900 03 Tubing Valve to Plaque D 100615 01 100615 01 Male Connector 104818 04 104818 04 Outlet Tubing Valve to Burner r po A nl DESA Por mora information visit www desatech com 107887 01E REPLACEMENT PARTS SERVICE HINTS TECHNICAL SERVICE SERVICE PUBLICATIONS ACCESSORIES REPLACEMENT PARTS Note Use only origina
20. UNVENTED VENT FREE INFRARED GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL 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 adjustment alteration service or maintenance can cause injury or property damage Refer to this Do not store or use gasoline or other flammable manualfor correct installation and vapors and liquids in the vicinity of this or any operational procedures For as other appliance sistance or additional information WHAT TO DO IF YOU SMELL GAS consult a qualified installer ser Do not try to light any appliance vice agency or the gas supplier e 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 in structions WARNING If the information in this manual is not followed exactly a fire or explosion may result caus ing property damage personal injury or loss of life WARNING This is an unvented gas fired heater It uses air oxy gen from the room in which it is II the fi installed Provisions for adequate If you cannot reach your gas supplier call the fire cambusron and wertilaten air pepariment must be provided Refer to Air for Installation and service must be performed by a quali Combustion and Ventilation sec
21. able from your dealer See Accessories page 30 If planning to use fan locate heater near an electrical outlet CEILING Minimum 2 Minimum To 4 Top Surface Of Carpeting Tile Or Other Combustible Material Figure 4 Mounting Clearances As Viewed From Front of Heater DESA FLOOR INSTALLATION Thermostat Sensing Bulb Installing Heater To Wall INSTALLATION Continued THERMOSTAT SENSING BULB Thermostat Models Only The thermostat sensing bulb has been placed inside the heater for protection during shipping Locating Thermostat Sensing Bulb for Thermostat Applications 1 Remove front panel of heater see Figure 7 2 Locate thermostat sensing bulb just under burner assembly IMPORTANT Attach thermostat sensing bulb to back of heater for proper operation Attaching Thermostat Sensing Bulb 1 Remove thermostat sensing bulb from holders inside heater Route through slot opening in bottom of heater 2 Place clamp on thermostat sensing bulb as shown in Figure 5 Clamp is provided in hardware package 3 Snap clamp into upper mounting hole as shown in Figure 5 Mounting hole is located on lower left edge on back of heater Make sure the thermostat sensing bulb is pointing up Thermostat Sensing Bulb Figure 5 Attaching Thermostat Sensing Bulb INSTALLING HEATER TO WALL Mounting Bracket Locate mounting bracket in heater carton Remove mounting bracket from heater carton
22. alve This results in the greatest heater comfort This can also result in lower gas bills DESA AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation AIR FOR COMBUSTION AND VENTILATION A WARNING This heater shall not be installed in a confined space or unusually tight construction un less 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 Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in During heating months home owners want their homes as airtight as possible While it is good to make your home energy efficient your home needs to breathe Fresh air must enter your home All fuel burning appliances need fresh air for proper combustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide adequate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code ANSI Z223 I NFPA 54 Section 5 3 Air for Combustion and Ventilation All spaces in homes
23. ark screw locations on wall see Figure 8 Note Only mark last hole on each end of mounting bracket Insert mounting screws through these holes only 3 Remove tape and mounting bracket from wall 16 14 Min y KO PSPS SE 3A 4 5 25 3 4 7 Only Insert Mounting A g Screws Through Last Optional 2 Hole On Each End 19 3 4 Min l Floor 4 and 5 Plaque Heaters L 12 14 4 Min Gh 7 Only Insert Mounting Een g Screws Through Last P a f Hole On Each End 19 3 4 A Min 4 1 Floor 3 Plaque Heater Figure 8 Mounting Bracket Clearances Attaching Mounting Bracket To Wall Note Wall anchors mounting screws and spacers are in hardware package The hardware package is provided with heater Attaching To Wall Stud Method For attaching mounting bracket to wall studs 1 Drill holes at marked locations using 9 64 drill bit 2 Place mounting bracket onto wall Line up last hole on each end of bracket with holes drilled in wall 3 Insert mounting screws through bracket and into wall studs Tighten screws until mounting bracket is firmly fastened to wall studs Por uos 107887 01E ormation visit www desatech com Attaching To Wall Anchor Method For attaching mounting bracket to hollow walls wall areas between studs or solid walls concrete or masonry 1 Drill holes at marked locations using 5 16 drill bit For solid walls concrete or masonry drill at
24. ator 104819 02 104819 02 104819 02 104819 02 104819 02 104819 02 104819 02 104819 02 Regulator Bracket 098522 24 098522 24 098522 24 098522 24 Thermostat Gas Valve 102394 01 102394 01 P 102394 01 102394 01 Thermostat Valve Mounting Bracket 107660 01 103256 02 107660 01 103256 02 107660 03 103256 02 107660 03 103256 02 Inlet Tube 109303 04 109303 04 109303 04 109303 04 109303 03 109303 03 109303 03 109303 03 Baffle PARTS AVAILABLE NOT SHOWN 100642 01 100642 01 100642 01 100642 01 100642 01 100642 01 100642 01 100642 01 Hardware Assembly 109483 01 109483 01 109483 01 109483 01 109483 01 109483 01 109483 01 109483 01 Lighting Instruction Plate 105345 01 105345 01 105345 01 105345 01 105345 01 105345 01 105345 01 105345 01 Cable Tie 107888 01 107888 01 107888 01 107888 01 107888 01 107888 01 107888 01 107888 01 Control Position Label GA4550 GA4550 GA4550 GA4550 GA4550 GA4550 GA4550 GA4550 Base Foot Not a field replaceable part Por uors information visit www desatech com DESA 107887 01E ILLUSTRATED PARTS BREAKDOWN Cabinet Body Models VP16IT VN18IT VP22IT VN25IT ILLUSTRATED PARTS BREAKDOWN CABINET BODY VP16IT VN18IT VP22IT VN25IT See Pages 3 26 through 29 Replacement may vary from grill shown Fo
25. cations at any time without notice The only warranty applicable is our standard written warranty We make no other warranty expressed or implied LIMITED WARRANTY VANGUARD VENT FREE INFRARED GAS HEATERS DESA International warrants this product to be free from defects in materials and components for four 4 years from the date of first purchase provided that the product has been properly installed operated and maintained in accordance with all applicable instructions To make a claim under this warranty the Bill of Sale or cancelled check must be presented This warranty is extended only to the original retail purchaser This warranty covers the cost of part s required to restore this heater to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center Warranty part s MUST be obtained through authorized dealers of this product and or DESA International who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any a
26. e Waitone minute for safety interlock sys tem to reset Repeat ignition operation Burner s does not light after ODS pilot is lit 1 Burner orifice s is clogged 2 Inlet gas pressure is too low Clean burner orifice s see Cleaning and Maintenance page 17 or replace burner orifice s Contact local natural or propane LP gas company Delayed ignition of burner s 1 Manifold pressure is too low 2 Burner orifice s is clogged Contact local natural or propane LP gas company Clean burner orifice s see Cleaning and Maintenance page 17 or replace burner orifice s Burner backfiring during combustion 1 Burner orifice s is clogged or damaged 2 Burner damaged 3 Gas regulator defective Clean burner orifice s see Cleaning and Maintenance page 17 or replace burner orifice s Replace burner Replace gas regulator Burner plaque s does not glow 1 Plaque damaged 2 Inlet gas pressure is too low 3 Control knob set between locked posi tions Replace burner Contact local natural or propane LP gas company Turn control knob until it locks at de sired setting Slight smoke or odor during initial operation 1 Residues from manufacturing processes Problem will stop after a few hours of operation Heater produces a clicking ticking noise just after burner is lit or shut off For more information visit www de 1 Metal expandin
27. er with base feet in desired location Mark holes for drilling Remove heater with base For carpeted floors make a small cut with a sharp knife at marked locations prior to drilling If mounting base to a wood floor drill 1 8 inch diameter hole 3 4 inch deep Do not use anchors in wood floors If mounting base to a concrete floor drill with 1 4 inch diam eter concrete drill bit 1 s inches into floor Insert anchors com pletely into holes Reposition heater with base feet over holes Secure base to floor with wood screws See Figure 13 N Sheet Metal Screw i l Figure 13 Installing Base Feet itech com 107887 01E INSTALLATION Connecting To Gas Supply INSTALLATION Continued CONNECTING TO GAS SUPPLY A WARNING This appliance requires a 3 8 NPT National Pipe Thread inlet connection to the pres sure regulator A WARNING A qualified service person must con nect heater to gas supply Follow all local codes A WARNING For natural gas never connect heater to private non utility gas wells This gas is com monly known as wellhead gas IMPORTANT For natural gas check gas line pressure before connecting heater to gas line Gas line pressure must be no greater than 14 inches of water If gas line pressure is higher heater regulator damage could occur A CAUTION For propane LP gas never connect heater directly to the propane LP supply This heater
28. ervice techni cian or gas supplier Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS STOP Read the safety information above Make sure equipment shutoff valve is fully open Turn control knob clockwise w to the OFF position Wait five minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information above If you don t smell gas go to the next step Row FOr ror fie 107887 01E For Your Safety Read Before Lighting Lighting Instructions 5 Turn control knob to PILOT IGN and press in Note You may be running this heater for the first time 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 to bleed from the gas system If control knob does not pop up when released contact a qualified service person or gas supplier for repairs 6 With control knob pressed in push down and release igni tor button This will light pilot The pilot is attached to the front of burner If needed keep pressing ignitor button until pilot lights If pilot does not light turn control knob clockwise w to the OFF p
29. essing ignitor button thermo stat models only Continue holding down control knob Re peat igniting operation until air is removed Contact local propane LP gas company Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly Replace gas regulator Turn thermostat control knob to pilot position DESA TROUBLESHOOTING 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 3 Equipment shutoff valve not fully open 4 Thermocouple connection loose at con trol valve 5 Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This prob lem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot 6 Thermocouple damaged 7 Control valve damaged 8 Safety interlock system has been trig gered thermostat models only ONA After ODS pilot lights keep control knob pressed in 30 seconds Fully open equipment shutoff valve Hand tighten until snug then tighten 1 4 turn more A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly Replace pilot assembly Replace control valv
30. fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on pages 4 through 6 will help you classify your space and provide adequate ventilation Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air For more information visit WWW Unusually tight construction is defined as construction where a walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm 6x10 kg per pa sec m or less with openings gasketed or sealed and b weather stripping has been added on openable win dows and doors and c caulking or sealants are applied to areas such as joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines and at other openings If your home meets all of the three criteria above you must provide additional fresh air See Ventilation Air From Outdoors page 6 If your home does not meet all of the three criteria above proceed to Determining Fresh Air Flow For Heater Loca tion page 5 Confined and Unconfined Space The National Fuel Gas Code ANSI Z223 1 NFPA 54 defines a confi
31. fied installer service agency or the gas supplier tion on page 4 of this manual This appliance may be installed in an aftermarket permanently located manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer DESA Save this manual for future reference TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION eee 2 LOCAL CODES eium eDim 3 PRODUCT IDENTIFICATION eeeneeeeneenr 3 UNPACKING nr teme 3 PRODUCT FEATURES sese 3 AIR FOR COMBUSTION AND VENTILATION 4 INSTALEATION 5 eee enheebee tete 7 OPERATING HEATER peto emet 13 INSPECTING HEATER ssssssseeeeeenreeneeennes 17 CLEANING AND MAINTENANCE eese 17 SAFETY INFORMATION Awaarnines IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or ser vice this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning A DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with
32. g room or add ventilation grills between rooms See Ventilation Air From Inside Building page 6 Vent room directly to the outdoors See Ventilation Air From Out doors page 6 Install a lower Btu Hr heater if lower Btu Hr size makes room un confined the actual Btu Hr used is less than the maximum Btu Hr the space can support the space is an unconfined space You will need no additional fresh air ventilation A WARNING If the area in which the heater may be operated is smaller than that defined as an uncon fined space or if the building is of unusually tight construction provide adequate combustion and ven tilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 Sec tion 5 3 or applicable local codes DESA AIR FOR COMBUSTION AND VENTILATION Ventilation Air AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR 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 one within 12 of the floor on the wall connecting the two spaces Ventilation Grills Into Adjoining Room H Ventilation Option 2 see options 1 and 2 Figure 2 You can also remove door into Grills Or adjoining room see option 3 Figure 2 Follow the National Fuel eerie Remove Gas Code ANSI Z2
33. g while heating or con tracting while cooling This is common with most heaters If noise is excessive contact qualified ser vice person E tecn com 107887 01E TROUBLESHOOTING Continued TROUBLESHOOTING building A 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 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 Cleaning supplies paint paint remover cigarette smoke cements and glues new carpet or textiles etc create fumes These fumes may mix with combustion air and create odors OBSERVED PROBLEM POSSIBLE CAUSE REMEDY White powderresidue forming within burner box or on adjacent walls or furniture 1 When heated vapors from furniture pol ish wax carpet cleaner etc may turn into white powder residue 1 Turn heater off when using furniture polish wax carpet cleaners or similar products Heater produces unwanted odors Uo Heater burning vapors from paint hair spray glues etc See IMPORTANT statement above Low fuel supply propane LP gas Gas leak See Warning statement at top of page Ventilate room Stop using odor caus ing products whi
34. he volume of these rooms to the total volume of the space 2 Multiply the space volume by 20 to determine the maximum Btu Hr the space can support volume of space x 20 Maximum Btu Hr the space can support Example 2560 cu ft volume of space x 20 51 200 maximum Btu Hr the space can support 3 Add the Btu Hr of all fuel burning appliances in the space Vent free heater Btu Hr Gas water heater Btu Hr Gas furnace Btu Hr Vented gas heater Btu Hr Gas fireplace logs Btu Hr Other gas appliances Btu Hr Total Btu Hr Do not include direct vent gas appliances Direct vent draws com bustion air from the outdoors and vents to the outdoors Example Gas water heater 40 000 Btu Hr Vent free heater 20 000 Btu Hr Total 60 000 Btu Hr Por nora Information visit www desatech com 107887 01E Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used Btu Hr maximum the space can support Btu Hr actual amount of Btu Hr used Example 51 200 Btu Hr maximum the space can support 60 000 Btu Hr actual amount of Btu Hr used The space in the above example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You must provide additional fresh air Your options are as follows A C If Rework worksheet adding the space of an adjoining room If the ex tra space provides an unconfined space remove door to adjoinin
35. heater ready You can also visit DESA International s technical service web site at www desatech com SERVICE PUBLICATIONS You can purchase a service manual from the address listed on the back page of this manual Send a check for 5 00 payable to DESA International ACCESSORIES Purchase these heater accessories from your local dealer If they can not supply these accessories call DESA International at 1 866 672 6040 for referral information You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap FAN KITS GA3250T For all models Provides better heat distribution Makes heater more efficient Complete installation and operating instructions included Thermostatically controlled blower turns itself on and off as re quired esatech com 107887 01E OWNER S REGISTRATION FORM In order to provide better customer service for this and future purchases we recommend that you register your product with us You can register online at www desatech com If access to our website is not available to you please complete this Owner s Registration Form and mail to the address on the back of this owner s manual Please provide the following product information Brand Comfort Glow Vanguard etc Model EFP33PR VTGH33NR etc Date Purchased Note Keep receipt for warranty verification Serial Number 17
36. ide adequate clearances around air openings LOCAL CODES Install and use heater with care Follow all local codes In the absence of local codes use the latest edition of National Fuel Gas Code ANSI Z223 I NFPA 54 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 Por Mors information visit www desatech com 107887 01E SAFETY INFORMATION LOCAL CODES PRODUCT IDENTIFICATION UNPACKING PRODUCT FEATURES PRODUCT IDENTIFICATION Control Knob Ignitor Button HL E pa dT es x K Qo 5000 Heater Cabinet Front Panel Figure 1 Vent Free Gas Heater UNPACKING 1 Remove heater from carton 2 Remove all protective packaging applied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES 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 The ODS pilot shuts off the heater if there is not enough fresh air PIEZO IGNITION SYSTEM This heater has a piezo ignitor This system requires no matches batteries or other sources to light heater THERMOSTATIC HEAT CONTROL Thermostat Models Only Thermostat models have a thermostat sensing bulb and a control v
37. ith 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 4 through 6 7 If heater shuts off do not relight until you provide fresh out side air If heater keeps shutting off have it serviced 8 Do not run heater where flammable liquids or vapors are used or stored under dusty conditions 9 Do not use heater if any part has been under water Immedi ately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water 10 Turn off heater unplug blower and let heater cool before ser vicing Only a qualified service person should service and re pair heater 11 Operating heater above elevations of 4 500 feet could cause pilot outage 12 To prevent performance problems do not use propane LP fuel tank of less than 100 Ibs capacity 13 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these prod ucts may create a white powder residue within burner box or on adjacent walls or furniture 14 Prov
38. l replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA International s Technical Service Department at 1 866 672 6040 When calling DESA International have ready your name your address model and serial numbers of your heater how heater was malfunctioning type of gas used propane LP or natural gas purchase date Usually we will ask you to return the part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA International at 1 866 672 6040 for referral information When calling DESA International have ready model number of your heater the replacement part number SERVICE HINTS 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 if used You may feel your gas pressure is too low If so contact your local natural or propane LP gas supplier For more information visit WWM d TECHNICAL SERVICE You may have further questions about installation operation or troubleshooting If so contact DESA International s Technical Service Department at 1 866 672 6040 When calling please have your model and serial numbers of your
39. le heater is running Refill supply tank Locate and correct all leaks see Check ing Gas Connections page 12 Heater shuts off in use ODS operates Not enough fresh air is available Low line pressure ODS pilot is partially clogged Open window and or door for ventilation Contact local natural or propane LP gas company Clean ODS pilot see Cleaning and Maintenance page 17 Gas odor even when control knob is in OFF position Gas leak See Warning statement at top of page Control valve defective Locate and correct all leaks see Check ing Gas Connections page 12 Replace control valve Gas odor during combustion Foreign matter between control valve and burner Gas leak See Warning statement at top of page Take apart gas tubing and remove for eign matter Locate and correct all leaks see Check ing Gas Connections page 12 Moisture condensation noticed on windows Por ost 107887 01E Not enough combustion ventilation air formation visit www desatech com Refer to Fresh Air for Combustion and Ventilation requirements page 4 DESA ILLUSTRATED PARTS BREAKDOWN Cabinet Body Models VP16 VN18 VP26 VN30 VP16T VN18T VP26T VN30T ILLUSTRATED PARTS BREAKDOWN CABINET BODY VP16 VN18 VP26 VN30 VP16T VN18T VP26T VN30T See Pages 26 through 29 Replacement may vary from grill shown
40. least 1 deep Fold wall anchor as shown in Figure 9 Insert wall anchor wings first into hole Tap anchor flush to wall NES 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 7 Tighten screws until mounting bracket is firmly fastened to wall 5 Figure 10 Popping Open Anchor Wings For Thin Walls Figure 9 Folding Anchor Placing Heater On Mounting Bracket 1 Locate two horizontal slots on back panel of heater 2 Place heater onto mounting bracket Slide horizontal slots onto stand out tabs on mounting bracket Horizontal Slots Mounting Bracket attached to wall Stand Out Tab 26500 Feo oo 600 Figure 11 Mounting Heater Onto Mounting Bracket DESA INSTALLATION Installing Heater To Wall Cont Mounting Heater To Floor INSTALLATION Continued Installing Bottom Mounting Screws 1 Locate two bottom mounting holes These holes are near bot tom on back panel of heater see Figure 12 Mark screw locations on wall Remove heater from mounting bracket If installing bottom mounting screws into hollow or solid wall install wall anchors Follow
41. mbly Cabinet Back Panel Piezo Ignitor Mounting Bracket Ignitor Cable Control Rod Assembly Roll Pin Control Knob Gas Regulator Regulator Bracket Thermostat Gas Valve SIT Tube Inlet Tube Thermostat Valve Mounting Bracket Baffle PARTS AVAILABLE NOT SHOWN Hardware Assembly Lighting Instruction Plate Cable Tie Base Kit DESA ILLUSTRATED PARTS BREAKDOWN Burner Assembly Models VP16 VN18 VP16T VN18T VP16IT VN18IT ILLUSTRATED PARTS BREAKDOWN BURNER ASSEMBLY VP16 VN18 VP16T VN18T VP16IT VN18IT O e ODS PILOT 107887 01E PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 30 of this manual PART NUMBER PARTS LIST Burner Assembly Models VP16 VN18 VP16T VN18T VP16IT VN18IT 107887 01E VP16 110803 02 110186 01 098200 03 105051 02 099218 06 098508 01 099056 01 099056 25 103844 01 107660 01 103352 03 103352 04 VN18 110803 03 110186 01 098200 03 105051 02 099218 06 098508 01 099056 02 099056 24 103844 01 107660 01 103352 03 103352 04 110803 02 110186 01 105051 01 099218 06 099056 01 099056 25 104818 03 110803 03 110186 01 105051 01 099218 06 099056 02 099056 24 10481
42. n HI and LO All plaques will turn off and on For infrastat models IT the control knob can be set at the 1 2 3 or 4 locked positions for the desired comfort level The number of plaques selected will turn off and on Note The thermostat sensing bulb measures the temperature of air near the heater cabinet This may not always agree with room temperature depending on housing construction installation location room size open air temperatures etc Frequent use of your heater will let you determine your own comfort levels EN 55 MEN PROCEDURE 1 Followsteps 1 through 5 under Lighting Instructions page 15 2 With thermostat control knob pressed in strike match Hold match to pilot until pilot lights 3 Keep thermostat control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Follow step 8 under Lighting Instructions page 15 E tecn com 107887 01E 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 If pilot flame pattern is incorrect as shown in Figure 28 turn heater off see To Turn Off Gas to Appliance page 14 or 16 depending on your model see Troubleshooti
43. n reach for cleaning Install in piping system between fuel supply and heater Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly IMPORTANT Hold the pressure regulator with wrench when connecting it to gas piping and or fittings Do not over tighten pipe connection to regulator The regulator body could be damaged Pressure Regulator Regulator Bracket Heater Cabinet rend ai Regulator 3 8 NPT Pipe Nipple Tank Tee Joint cr Ground Joint Union Bs Reducer a auge A Bushing to quipment Connection 1 8 NPT SA HN Vent uto alve 1 8 NPT Pointing Down ENTER Figure 14 External Regulator With Vent Pointing Down A 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 Por nora information visit www desatech com 107887 01E Natural Gas Plug Tap From Gas Meter Tee Joint Pressure Sediment Pipe Nipple Trap LL 3 Propane LP Cap J Minimum From External Regulator Figure 15 Gas Connection DRM 1619 NS A CSA design certified equipment shutoff valve with 1
44. nd all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE AND DESA INTERNATIONAL S LIABILITY IS HEREBY LIMITED TO THEPURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL SHALL NOT BELIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages so the above limitation on implied warranties or exclusion or limitation on damages may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state For information about this warranty write Oo ES A TM INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 Patent Pending www desatech com 107887 01 107887 01 Rev E NOT A UPC 09 02 For more information visit www desateCh eom
45. ned space as a space whose volume is less than 50 cubic feet per 1 000 Btu per hour 4 8 m per kw of the aggregate input rating of all appliances installed in that space and an unconfined space as aspace whose volume is not less than 50 cubic feet per 1 000 Btu per hour 4 8 m per kw of the aggregate input rating of all appliances installed in that space Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them esatech com 107887 01E AIR FOR COMBUSTION AND VENTILATION Determining Fresh Air Flow For Heater Location AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space Space Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms 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 open ings add t
46. ng pages 19 through 21 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color Yellow Flame Blue Flame Pilot Burner UM Figure 27 Correct Pilot Flame Figure 28 IncorrectPilot Flame Pattern Pattern BURNER FLAME PATTERN Figure 29 shows a correct burner flame pattern Figure 30 shows an incorrect burner flame pattern Pilot Burner Thermocouple If burner flame pattern is incorrect as shown in Figure 30 turn heater off see To Turn Off Gas to Appliance page 14 or 16 depending on your model see Troubleshooting pages 19 through 21 Mae dul D Figure 29 Correct Burner Flame Pattern Figure 30 Incorrect Burner Flame Pattern CLEANING AND MAINTENANCE A WARNING Turn off heater and let cool before cleaning Por uoc information visit www desatech com 107887 01E INSPECTING HEATER Pilot Flame Pattern Burner Flame Pattern CLEANING AND MAINTENANCE ODS Pilot and Burner Cleaning Burner Pilot Air Inlet Cabinet A CAUTION You must keep conirol areas burner and circulating air passageways of
47. on Por uors information visit www desatech com 107887 01E A WARNING Never install the heater in a bedroom or bathroom inarecreational vehicle where curtains furniture clothing or other flam mable objects are less than 36 inches from the front top or sides of the heater asa fireplace insert e in high traffic areas in windy or drafty areas CAUTION Ifyou 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 A CAUTION This heater creates warm air currents These currents move heatto wall surfaces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities Such as but not limited to tobacco smoke aromatic candles cleaning fluids oil or kerosene lamps etc in the air exist may discolor walls or cause odors IMPORTANT Vent free heaters add moisture to the air Although this is beneficial installing heater in rooms without enough venti lation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation pages 4 through 6 If high humidity is experienced a dehumidifier may be used to help lower the water vapor content in the air For convenience and efficiency install heater where there is easy access for operation inspection and service e in coldest part of room An optional fan kit is avail
48. osition repeat steps 5 and 6 If pilot does not stay lit after several tries refer to Troubleshooting pages 19 through 21 contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pi lot with match see Manual Lighting Procedure page 14 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 Control Knob Ignitor Button IGNITOR Figure 19 Control Knob In The OFF Position for Non Thermostat Models Thermocouple Figure 20 Pilot OPERATING HEATER NON THERMOSTAT MODELS To Select Heating Level To Tum Off Gas To Appliance Manual Lighting Procedure OPERATING HEATER THERMOSTAT MODELS For Your Safety Read Before Lighting OPERATING HEATER Continued EB TO SELECT HEATING LEVEL EMI A 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 monox ide may result A CAUTION Do not try to adjust heating levels by using the equipment shutoff valve Slightly pressincontrol knob and turn counterclockwise y N to the LOW MEDIUM or HIGH positions see Figure 21 IMPORTANT Release downward pressure while turning con trol knob Control knob will lock at the desired position VN18 VN3
49. ou may run system s circulating blower while using heater This will help circulate the heat throughout the house In the event of a power outage you can use this heater as your primary heat source Ay WARNING A qualified service person must in stall heater Follow all local codes CHECK GAS TYPE Use only the correct type of gas natural or propane LP If your gas supply is not the correct gas type do not install heater Call dealer where you bought heater for proper type heater INSTALLATION ITEMS Before installing heater make sure you have the items listed below for propane LP gas external regulator supplied by installer piping check local codes sealant resistant to propane LP gas equipment shutoff valve ground joint union sediment trap tee joint pipe wrench for natural gas test gauge connection A CSA design certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection The optional CSA design certified equipment shutoff valve can be purchased from your dealer See Accessories page 30 LOCATING HEATER AX WARNING Maintain the minimum clearances shown in Figure 4 If you can provide greater clear ances from floor ceiling and joining wall You can locate heater on the floor away from a wall A wall mounting bracket and floor base stand are included with this heater Determine which method is best for your applicati
50. r more information visit www de ate f 107887 01E PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 30 of this manual 107887 01E oe 1000 0 PART NUMBER PARTS LIST Cabinet Body Models VP16IT VN18IT VP22IT VN25IT VP16IT 107672 01 103476 01 104635 02 107894 01 097159 04 099066 02 098271 09 098462 01 098325 01 098354 04 099415 18 104819 02 098522 24 103255 02 103256 02 102394 01 109303 04 100642 03 109483 01 105345 01 GA4550 VN18IT 107672 01 103476 01 104635 02 107894 01 097159 04 099066 02 098271 09 098462 01 098325 01 098354 04 099415 19 104819 02 098522 24 103255 02 103256 02 102394 01 109303 04 100642 03 109483 01 105345 01 GA4550 Not a field replaceable part VP22IT 107675 01 103476 02 104635 03 107894 03 097159 04 099066 02 098271 09 098462 01 098325 01 098354 05 099415 18 104819 02 098522 24 104224 02 103256 02 102394 01 109303 03 100642 03 109483 01 105345 01 GA4550 VN25IT 107675 01 103476 02 104635 03 107894 03 097159 04 099066 02 098271 09 098462 01 098325 01 098354 05 099415 19 104819 02 098522 24 104224 02 103256 02 102394 01 109303 03 100642 03 109483 01 105345 01 GA4550 Por uors information visit www desatech com DESCRIPTION Front Panel Grill Guard Apron Reflector Asse
51. r your model Note You may be running this heater for the first time after hooking up to gas supply If so you may need to press in thermostat control knob for 30 seconds or more This will allow air to bleed from the gas system e If thermostat control knob does not pop up when released contact a qualified service person or gas supplier for repairs 6 Keepthermostat control knob pressed in while pushing down and releasing the ignitor button This will light pilot If nec essary continue to press ignitor button until pilot lights If pilot does not light turn thermostat control knob clockwise to the OFF position repeat steps 5 and 6 If pilot does not stay lit after several tries refer to Troubleshooting pages 19 through 21 contact a qualified service person or gas supplier Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 16 7 Keep thermostat control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 This heater has a safety interlock system Wait one minute before light ing pilot again 8 Turn thermostat control knob counterclockwise to the desired heating level For models VP16T VN18T VP26T and VN30T the main burner should light Set con trol knob to any heat level between HI and LOW see Fig ure 25 For infrastat models the plaque directly above the
52. s forming show a leak Correct all leaks at once Reconnect heater and equipment shutoff valve to gas supply Check reconnected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 2 Close equipment shutoff valve see Figure 16 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using com pressed air Check all joints from gas meter for natural gas see Figure 17 or propane LP supply tank for propane LP gas to equipment shutoff valve see Figure 18 Apply a noncorrosive leak de tection fluid to all joints Bubbles forming show a leak Correct all leaks at once Pressure Testing Heater Gas Connections 1 2 Open equipment shutoff valve see Figure 16 For natural gas open main gas valve located on or near gas meter For propane LP gas open propane LP supply tank valve Make sure control knob of heater is in the OFF position Check all joints from equipment shutoff valve to thermostat gas valve see Figure 17 or 18 Apply a noncorrosive leak detection fluid to all joints Bubbles forming show a leak Correct all leaks at once Light heater see Operating Heater page 13 or 14 depending on your model Check all other internal joints for leaks Turn off heater see To Turn Off Gas to Appliance page 14 or 15 depending on your model Replace front panel
53. steps 1 through 4 under Attaching To Wall Anchor Method page 9 If installing bottom mounting screw into wall stud drill holes at marked locations using 9 64 drill bit Replace heater onto mounting bracket Place spacers between bottom mounting holes and wall anchor or drilled hole Hold spacer in place with one hand With other hand insert mounting screw through bottom mounting hole and spacer Place tip of screw in opening of wall anchor or drilled hole Tighten both screws until heater is firmly secured to wall Do not over tighten Note Do not replace front panel at this time Replace front panel after making gas connections and checking for leaks see pages 11 and 12 Front View Wall Heater Spacer Side View Figure 12 Installing Bottom Mounting Screws For more information visit WWW je MOUNTING HEATER TO FLOOR Mounting Base Feet to Heater 1 3 4 Lay heater cabinet on its back on a table with the heater bot tom overhanging the table edge Align holes in base foot with mounting holes on bottom of cabinet see Figure 13 Secure base foot to heater using sheet metal screws Repeat for other side Mounting Base Feet to Floor Where required by local code l 2 Remove front cover see Removing Front Panel of Heater page 8 Position heat
54. x1825 x 7 26 25 x 21 25 x 9 20 25 Note Dimensions listed are outer most points on the heater includes control knobs and grill For purposes of input adjustment For more information visit www VN18IT 6 600 18 000 Natural Only Piezo 6 W C 10 5 s 24 25 x 1825 x 7 26 25 x 21 25 x 9 20 25 VP16IT 6 000 16 000 Propane LP Only Piezo 8 W C 14 1 1 24 25 x 1825 x 7 26 25 x 21 25 x 9 20 25 VN30 VN30T 6 600 18 000 30 000 Natural Only Piezo 6 W C 10 5 gu 24 25 x 25 75 x 7 26 25 x 29 x9 28 33 VP26 VP26T 6 000 16 000 26 000 Propane LP Only Piezo 8 W C 14 11 24 25 x 25 75 x 7 26 25 x 20x 9 28 33 tech com VN25IT 7 000 25 500 Natural Only Piezo 6 W C 10 5 T 24 25 x 25 75 x7 26 25x29x9 28 33 VP22IT 6 500 22 000 Propane LP Only Piezo 8 W C 14 1 1 24 25 x 25 75 x7 26 25x29x9 28 33 107887 01E TROUBLESHOOTING Note For additional help visit DESA International s technical service web site at www desatech com Note All troubleshooting items are listed in order of operation TROUBLESHOOTING Ay WARNING Turn off and un plug heater and let cool before servicing Only a qualified ser vice person should service and repair heater A CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit OBSERVED PROBLEM POS

Desa VN30T Electric Heater User Manual

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