Crown Equipment MEX50 Automobile User Manual
Contents
1. Use only the correct type of gas natural or pro pane 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 e 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 ACSAdesign 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 33 LOCATING HEATER AX WARNING Maintain the mini mum clearances shown in Figure 4 Ifyoucan provide greater clearances 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 application CEILING 36 r 10 Minimum Minimum From Sides Of CM Heater Left Right Side Side 2 Minimum To Top Surface Of Carpeting Tile Or Other Combustible Material Figure 4 Mounting Clearances As Viewed From Front of Heater FLOOR 113052 01A www desatech2. page 19 or replace burner orifice s Contact local natural or pro pane LP gas company Delayed ignition of burner s Manifold pressure is too low Burner orifice s is clogged 1 Ze Contact local natural or pro pane LP gas company Clean burner orifice s see Cleaning and Maintenance page 19 or replace burner orifice s Burner backfiring during com bustion Burner orifice s is clogged or damaged Burner damaged Gas regulator defective i Clean burner orifice s see Cleaning and Maintenance page 19 or replace burner orifice s Replace burner Replace gas regulator Burner plaque s does not glow Plaque damaged Inlet gas pressure is too low Control knob set between locked positions 2 3 Replace burner Contact local natural or pro pane LP gas company Turn control knob until it locks at desired setting Slight smoke or odor during ini tial operation Residues from manufacturing processes 1 Problem will stop after a few hours of operation 113052 01A www desatech com 21 TROUBLESHOOTING Continued Ay WARNING If you smell gas Shut off gas supply Do not try to light any appliance Donottouchany electrical switch do notuseany phonein 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 fi
3. 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 Ei ther 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 AX WARNING Maintain mini mum clearances shown in Fig ure 8 If you can provide greater clearances from floor and join ing wall 2 Mark 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 113052 01A 16 14 Min AN A 25 3 4 Optional 19 34 Min Only Insert Mounting Screws Through Last Hole On Each End Tsn ta Floor 4 and 5 Plaque Heaters L 12 Min 14 Koa 9 0 25 3 4 Optional 19 3 4 Min 3 Plaque Heater Figure 8 Mounting Bracket Clearances Only Insert Mounting Screws Through Last Hole On Each End Barmy Wal Floor Attaching Mounting Bracket To Wall Note Wall anchors mounting screws and spac ers are in hardware package The hardware pack age is provided
4. to pilot position 20 www desatech com 113052 01A OBSERVED PROBLEM Continued POSSIBLE CAUSE TROUBLESHOOTING REMEDY ODS pilot lights but flame goes out when control knob is re leased 1 2 d Control knob not fully pressed in Control knob not pressed in long enough Equipment shutoff valve not fully open Thermocouple connection loose at control valve Pilot flame not touching ther mocouple which allows ther mocouple to cool causing pi lot 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 Thermocouple damaged Control valve damaged Safety interlock system has been triggered thermostat models only 1 2 3 Press in control knob fully After ODS pilot lights keep con trol 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 19 or replace ODS pi lot assembly Replace pilot assembly Replace control valve Wait one minute for safety in terlock system to reset Repeat ignition operation Burner s does not light after ODS pilot is lit Burner orifice s is clogged Inlet gas pressure is too low 1 2 Clean burner orifice s see Cleaning and Maintenance
5. 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 Use only 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 tech nician or gas supplier Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately call a quali fied service technician to inspect the appli ance and to replace any part of the control system and any gas control which has been under water LIGHTING EH structions AME Ignitor Button 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 sup ply If so you may need to press in control knob for 30 seconds or more This will al low air to bleed from the gas system If control knob does not pop up when re leased contact a qualified service person or gas supplier for repairs With control knob pressed in push down and release ignitor button This will light pilot The pilot is attached to the front of burner If needed keep pressing ignitor but ton until pilot lights If pilot does not light turn control knob clockwise to the OFF position repeat steps 5 and 6 If pilot does not stay li
6. 100 lbs ca pacity 13 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture 14 Provide adequate clearances around air open ings LOCAL CODES Install and use heater with care Follow all local codes In the absence of local codes use the latest edition of The National Fuel Gas Code ANSI Z223 1 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 PRODUCT IDENTIFICATION Ignitor Button Control a L4 Knob Heater Cabinet Figure 1 Vent Free Gas Heater UNPACKING 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 return to 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 heat ers The ODS pilot shuts off the heater if there is not enough fresh air IGNITION SYSTEM This heater has an electronic ignitor to light heater fuel supply THERMOSTATIC HEAT CONTROL Thermostat Models Only Thermostat models have a thermostat sensing bulb
7. 1446 www nbmc com FAN KITS GA3250T For all models Provides better heat distribution Makes heater more efficient Complete installa tion and operating instructions included Thermostatically controlled blower turns itself on and off as required Washer Equipment Co 1715 Main Street Kansas City MO 64108 2195 KS MO AR 816 842 3911 www washerparts com East Coast Energy 707 Broadway W Long Branch NJ 07764 1542 732 870 8809 1 800 755 8809 www njplaza com ecep Laporte s Parts amp Service 2444 N Sth Street Hartsville SC 29550 7704 843 332 0191 Parts Department Cans Unlimited P O Box 645 Taylor SC 29687 0013 803 879 3009 1 800 845 5301 cuisales O aol com 113052 01A www desatech com 33 NOTES 34 www desatech com 113052 01A NOTES 113052 01A www desatech com 35 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 LIMITED WARRANTY VANGUARD VENT FREE INFRARED GAS HEATERS DESA Heating Products 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
8. FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts You must provide two permanent open ings 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 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 con trolled power vent Heated air entering the attic will activate the power vent E Ventilated Outlet i Air Attic L Outlet Air To Attic To Crawl Inlet Air A Ventilated Inlet Air Crawl Space Figure 3 Ventilation Air from Outdoors INSTALLATION NOTICE This heater is intended for use as supplemental heat Use this heater along with your primary heating system Do not install this heater as your pri mary heat source If you have a central heating system you 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 A WARNING A qualified ser vice person must install heater Follow all local codes CHECK GAS TYPE
9. and a control valve This results in the greatest heater comfort This can also result in lower gas bills 4 www desatech com 113052 01A AIR FOR COMBUSTION AND VENTILATION AX WARNING This heater shall notbeinstalledinaconfined space or unusually tight construction unless provisions are provided foradequate combustion and ven tilation air Read the following in structions 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 effi cient 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 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three
10. com 7 INSTALLATION Continued A WARNING Never install the heater in a bedroom or bathroom inarecreational 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 e in high traffic areas in windy or drafty areas A 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 A CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces 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 flu ids 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 ventilation air may cause mildew to form from too much mois ture See Air for Combustion and Ventilation pages 5 through 7 If high humidity is experi enced 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 inspec tion and service incoldest part of room An optional fan kit is av
11. due to excessive lint from carpeting bedding mate rial pet hair etc AX WARNING Failure to keep the primary air opening s of the burner s clean may result in sooting and property damage 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 dust and dirt To clean these parts we recommend using com pressed air no greater than 30 PSI Your local com puter 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 com pressed 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 P Inspect burner pilot for dust and dirt 3 Blow air through the ports slots and holes in the burner 4 Never insert objects in
12. fol lowing ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on pages 5 through 7 will help you classify your space and provide adequate ven tilation Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ven tilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where walls and ceilings exposed to the out side atmosphere have a continuous water vapor retarder with a rating of one perm 6 x 10 kg per pa sec m or less with openings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to ar eas such as joints around window and door frames between sole plates and floors between wall ceiling joints be tween wall panels at penetrations for plumbing electrical and gas lines and at other openings If your home meets all of these three crite ria you must provide additional fresh air See Ventilation Air From Outdoors page 7 If your home does not meet all of the three criteria above proceed to Determining Fresh Air Flow For Heater Location Confined and Unconfined Space The National Fuel Gas Code ANSI Z223 1 NF PA 54 defines a confined space as a space whose vol ume is less than 50 cubic feet p
13. pilot After 30 seconds between locked positions Poor release control knob Now follow step 8 under Lighting Instructions page 14 combustion and higher levels 5 Replace front panel f carbon monoxide may result of carbon monoxide may result THERMOSTAT MODELS CAUTION Do not try to ad gn FOR YOUR SAFETY READ just heating levels by using the BEFORE LIGHTING equipment shutoff valve AX WARNING If you do not fol Slightly press in control knob and turn coun low these instructions exactly terclockwise to the LOW MED or HI a fire or explosion may result positions see Figure 21 causing property damage per IMPORTANT Release downward pressure sonal injury or loss of life while turning control knob Control knob will lock at the desired position A This appliance has a pilot which must be lighted by hand When lighting the pilot Control VN18A VN30A follow these instructions exactly Knob VPIBA sees B BEFORE LIGHTING smell all around the IN appliance area for gas Be sure to smell next to the floor because some gas is heavier than LOW air and will settle on the floor WHAT TO DO IF YOU SMELL GAS E Do not try to light any appliance Do not touch any electric switch do not MED E vie use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas HI supplier s instructions If you ca
14. pipe where equip ment shutoff valve was connected 3 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve lo cated on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply a noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 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 1 Close equipment shutoff valve see Figure 16 2 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve lo cated on or near gas meter for natural gas or using compressed air 3 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 detection fluid to all joints Bubbles form ing show a leak 4 Correct all leaks at once Pressure Testing Heater Gas Connections 1 Openequipment shutoff valve see Figure 16 4 Checkalljoints 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 5 Correct all leaks at once 6 Light heater see Operating Heater pages 14 thro
15. wells This gas is commonly knownas 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 regula tor damage could occur A CAUTION For propane LP gas never connect heater directly to the propane LP supply This heater requires an external regu lator not supplied Install the ex ternal regulator between the heater and propane LP supply For propane LP gas the installer must supply an external regulator The external regulator will re duce incoming gas pressure You must reduce in coming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pres sure 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 Propane LP Supply Tank External Regulator EE Vent vo Pointing F Down VEE ee o a Figure 14 External Regulator With Vent Pointing Down 113052 01A www desatech com 11 INSTALLATION Continued A CAUTION Use only new black iron or steel pipe Inter nally 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 und
16. with heater Attaching To Wall Stud Method For attaching mounting bracket to wall studs Drill holes at marked locations using 9 64 drill bit Place mounting bracket onto wall Line up last hole on each end of bracket with holes drilled in wall P 3 Insert mounting screws through bracket and into wall studs 4 Tighten screws until mounting bracket is firmly fastened to wall studs 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 least 1 deep www desatech com 9 INSTALLATION Continued 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 7 Tighten screws until mounting bracket is firmly fastened to wall CX Figure 9 Folding Anchor Sy Figure 10 Popping Open Anchor Wings For Thin Walls Placing Heater On Mounting Bracket 1 Locate two horizontal slots on back pane
17. 24 098522 24 Thermostat Gas Valve 102394 02 102394 02 Thermostat Valve Mounting Bracket 107660 03 103256 02 107660 03 103256 02 Inlet Tube 109303 03 109303 03 109303 03 109303 03 Baffle Not a field replaceable part PART NO DESCRIPTION 100642 03 Hardware Assembly 109483 01 Lighting Instruction Plate 105345 01 Cable Tie 107888 01 Control Position Label GA4550 Base Foot 113052 01A www desatech com 25 ILLUSTRATED PARTS BREAKDOWN CABINET BODY MODELS VP16ITA AND VP22ITA See Page 30 Replacement may vary from grill shown Z Install Battery According To aa f This Illustration Battery Negative UP 26 www desatech com 113052 01A KEY NO 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 PART NUMBER VP16ITA 107672 01 103476 01 104635 02 107894 01 111435 01 099066 02 098271 11 098462 01 098325 01 098354 04 099415 18 104819 02 098522 24 103255 02 103256 02 102394 02 109303 04 VP22ITA 107675 01 103476 02 104635 03 107894 03 111435 01 099066 02 098271 11 098462 01 098325 01 098354 05 099415 18 104819 02 098522 24 103255 02 103256 02 102394 02 109303 05 DESCRIPTION Front Panel Grill Guard Apron Reflector Assembly Cabinet Back P
18. 635 01 104635 01 104635 01 104635 01 Apron 107894 01 107894 01 1107894 01 107894 01 Reflector Assembly di NS d um Cabinet Back Panel 111435 01 111435 01 111435 01 111435 01 Electronic Ignitor 099066 02 099066 02 099066 02 099066 02 Mounting Bracket 098271 11 098271 11 098271 11 098271 11 Ignitor Cable 098462 01 098462 01 Control Rod Assembly 098325 01 098325 01 Roll Pin 098354 03 098354 03 Control Knob 099415 18 099415 18 099415 19 099415 19 Gas Regulator 104819 02 104819 02 104819 02 104819 02 Regulator Bracket 098522 24 098522 24 Thermostat Gas Valve 102394 02 102394 02 Thermostat Valve Mounting Bracket 107660 01 103256 02 107660 01 103256 02 Inlet Tube 109303 04 109303 04 109303 04 109303 04 Baffle aceable part PART NUMBER VP26TA VN30A VN30TA DESCRIPTION 107675 01 107675 01 1107675 01 107675 01 Front Panel 103476 02 103476 02 103476 02 103476 02 Grill Guard 104635 03 104635 03 104635 03 104635 03 Apron 107894 02 107894 02 107894 02 107894 02 Reflector Assembly 111435 01 1111435 01 111435 01 099066 02 099066 02 099066 02 098271 11 098271 11 098271 11 098462 01 098462 01 Control Rod Assembly 098325 01 098325 01 Roll Pin 098354 03 098354 03 Control Knob 099415 18 099415 18 099415 19 099415 19 Gas Regulator 104819 02 104819 02 104819 02 104819 02 Regulator Bracket 098522
19. G Test all gas pip ing and connections internal and external to unit for leaks after installing or servicing Cor rect all leaks at once Install sediment trap in supply line as shown in Figure 15 Locate sediment trap where it is within reach for cleaning 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 A WARNING Never use an open flame to check for a leak Apply a noncorrosive leak de tection fluid to all joints Bubbles forming show a leak Correct all leaks at once A CAUTION For propane LP gas make sure external regula tor has been installed between propane LP supply and heater See guidelines under Connect ing to Gas Supply page 11 12 www desatech com 113052 01A 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
20. INSTALLATION Continued MOUNTING HEATER TO FLOOR Mounting Base Feet to Heater 1 4 Lay heater cabinet on its back on a table with the heater bottom 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 1 Remove front cover see Removing Front Panel of Heater page 8 Position heater with base feet in desired loca tion Mark holes for drilling Remove heater with base For carpeted floors make a small cut with a sharp knife at marked locations prior to drill ing 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 diameter concrete drill bit 1 s inches into floor Insert anchors completely into holes Reposition heater with base feet over holes Secure base to floor with wood screws See Figure 13 Sheet Metal Screw X I Figure 13 Installing Base Feet CONNECTING TO GAS SUPPLY A WARNING This appliance requires a 3 8 NPT National Pipe Thread inlet connection to the pressure regulator A WARNING A qualified service person must connect heater to gas supply Followalllocal codes A WARNING For natural gas never connect heater to private non utility gas
21. LITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE AND DESA HEATING PROD UCTS LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUD ING 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 DESA HEATING PRODUCTS 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com AT lil 113052 01 l Rev A Patent Pending NOT A UPC 02 04
22. LLUSTRATED 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 SE rd 7 ODS Pilot Burner Assembly VP26A VN30A KEY PART NUMBER NO VP26A VN30A DESCRIPTION QTY 110803 02 110803 03 ODS Pilot 110186 01 110186 01 Thermocouple Kit 098200 03 098200 03 Control Valve Bracket 105050 02 105050 02 Pilot Tubing 099218 07 Burner 098508 01 Valve Retainer Nut 099056 24 Injector Plaque A C 099056 02 Injector Plaque B 100747 01 Control Valve 107660 03 Inlet Tubing 103353 04 103353 04 Tubing Valve to Plaque A 103353 05 103353 05 Tubing Valve to Plaque B 103353 06 103353 06 Tubing Valve to Plaque C mere 113052 01A www desatech com 29 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 Burner Assembly VP16ITA KEY PART NUMBER NO VP16ITA VP22ITA DESCRIPTION QTY 110803 02 110803 02 ODS Pilot 110186 01 110186 01
23. Thermocouple Kit 098200 04 098200 04 Control Valve Bracket 099387 11 099387 11 Pilot Tubing 099218 01 099218 03 Burner 098508 01 098508 01 Valve Retainer Nut 099056 01 099056 01 Injector EI 100615 01 Male Connector 100605 01 100605 02 Control Valve 107899 01 107899 03 Inlet Tubing 107892 02 107900 02 Tubing Valve to Plaque A 107892 01 107900 04 Tubing Valve to Plaque B 107892 03 107900 01 Tubing Valve to Plaque C OMONOORWND 30 www desatech com 113052 01A 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 4 Burner Assembly VP16TA VN18TA KEY PART NUMBER ODS Pilot Burner Assembly VP26TA VN30TA NO VP16TA VN18TA 110803 02 110803 03 110186 01 110186 01 105051 01 105051 01 104818 03 099218 06 099056 02 099056 24 VP26TA 110803 02 110186 01 099387 03 104818 04 099218 07 099056 25 099056 01 VN30TA DESCRIPTION QTY 110803 03 ODS Pilot 110186 01 Thermocouple Kit 099387 03 Pilot Tubing 104818 04 Outlet Tubing 099218 07 Burner 099056 24 Injector Plaque A and C 099056 02 Injector Plaque B 113052 01A www desatech com 31 REPLACEMENT PARTS Note Use only original r
24. VANGUARD UNVENTED VENT FREE INFRARED GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL We recommend that our A products be installed and SOS serviced by professionals who 13 are certified in the U S by NFI uui National Fireplace Institute mum www nficertified org S NATI 1 ES Model VN30A Shown VN18A VN18TA VP16A VP16TA VP26A VP26TA VN30A VN3OTA 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 WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance 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 instructions e f you cannot reach your gas supplier call the fire department Installation and service must be performed by a quali fied installer service agency or the gas supplier Save this manual for future reference For more information visit www desatech com WARNING Improper installation adjustment altera tion service or maintenance can cause injury or prop erty damage Referto this manual for correct installation and operational procedures For assistance or addi tional information consult a qualif
25. ailable from your dealer See Accessories page 33 If planning to use fan locate heater near an electrical outlet THERMOSTAT SENSING BULB Thermostat Models Only The thermostat sensing bulb has been placed be low the heater 1 Place clamp on thermostat sensing bulb as shown in Figure 5 Clamp is provided in hard ware package 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 ther mostat sensing bulb is pointing up Thermostat 1 Sensing m Bulb B Clamp Figure 5 Attaching Thermostat Sensing Bulb INSTALLING HEATER TO WALL Mounting Bracket Locate mounting bracket in heater carton Remove mounting bracket from heater carton Figure 6 Mounting Bracket Removing Front Panel Of Heater 1 2 3 Remove the four painted screws two on each side of front panel Pull bottom of front panel forward then out Remove any remaining packaging materials Front Panel Figure 7 Removing Front Panel Of Heater 8 www desatech com 113052 01A INSTALLATION Continued 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
26. anel Electronic Ignitor Mounting Bracket Ignitor Cable Control Rod Assembly Roll Pin Control Knob Gas Regulator Regulator Bracket Thermostat Gas Valve SIT Outlet Tube Inlet Tube Thermostat Valve Mounting Bracket Baffle PARTS AVAILABLE NOT SHOWN 100642 03 109483 01 107888 01 105345 01 GA4550 100642 03 109483 01 107888 01 105345 01 GA4550 Not a field replaceable part Hardware Assembly Lighting Inst Plate Control Position Decal Cable Tie Base Kit 113052 01A www desatech com 27 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 ODS Pilot Burner Assembly VP16A VN18A KEY PART NUMBER NO VP16A VN18A DESCRIPTION QTY 110803 02 110803 03 ODS Pilot 110186 01 110186 01 Thermocouple Kit 098200 03 098200 03 Control Valve Bracket 105051 02 105051 02 Pilot Tubing 099218 06 099218 06 Burner 098508 01 098508 01 Valve Retainer Nut 099056 01 099056 02 Injector Plaque A 099056 25 099056 24 Injector Plaque B 103844 01 103844 01 Control Valve 107660 01 107660 01 Inlet Tubing 103352 03 103352 03 Tubing Valve to Plaque A 103352 04 103352 04 Tubing Valve to Plaque B 1 2 3 4 5 6 7 8 9 28 www desatech com 113052 01A I
27. at control knob counter clockwise y to the PILOT position Press in thermostat control knob for 5 sec onds see Figure 22 or 23 for 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 If thermostat control knob does not pop up when released contact a qualified ser vice person or gas supplier for repairs Keep thermostat control knob pressed in while pushing down and releasing the ignitor but ton This will light pilot If necessary 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 20 through 22 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 17 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 inter lock system Wait one minute before light ing pilot again www desatech com 8 Turn thermostat control knob counter clockwise to the desired heating level For models VP16TA VNISTA VP26TA a
28. bout installation operation or troubleshooting If so contact DESA Heating Products Technical Service Department at 1 866 672 6040 When calling please have your model and serial numbers of your heater ready You can also visit DESA Heating Products tech nical service web site at www desatech com 32 www desatech com 113052 01A 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 ad dress listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap PARTS CENTRAL These Parts Centrals are privately owned businesses They have agreed to support our customer s needs by providing original replacement parts and accessories Baltimore Electric 5 Manila Ave Hamden CT 06514 0322 1 800 397 7553 203 248 7553 Portable Heater Parts 342 N County Rd 400 East Valparaiso IN 46383 9704 219 462 7441 1 888 619 7060 www portableheaterparts com sales portableheaterparts com techservice portableheaterparts com FBD 1349 Adams Street Bowling Green KY 42103 3414 270 846 1199 1 800 654 8534 Fax 1 800 846 0090 franktalk aol com Master Parts Dist 1251 Mound Ave NW Grand Rapids MI 49504 2672 616 791 0505 1 800 446
29. eaning and Maintenance 19 Warranty Information 2 www desatech com 113052 01A SAFETY INFORMATION A WARNING Thisproduct con tainsand 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 oper ate or service this heater Im proper use of this heater can cause serious injury or death from burns fire explosion elec trical shock and carbon mon oxide poisoning AL DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of car bon monoxide poisoning resemble the flu with head aches 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 alco hol and those at high altitudes Natural and Propane LP Gas Natural and Propane LP gases are odorless An odor making agent is added to these gases The odor helps you detect a gas leak However the odor added to the gas can fade Gas may be present even though no odor exists Make certain you read and understand all warn ings Keep this manual for reference It is your guide to safe and proper op
30. eplacement parts This will protect your warranty coverage for parts re placed under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA Heating Products Technical Service De partment at 1 866 672 6040 When calling DESA Heating Products 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 either contact your nearest Parts Central see page 33 or call DESA Heating Products at 1 866 672 6040 for referral information When calling DESA Heating Products have ready model number of your heater the replacement part number 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 Heating Products 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 You may feel your gas pressure is too low If so con tact your local natural or propane LP gas supplier TECHNICAL SERVICE You may have further questions a
31. er 1 000 Btu per hour 4 8 n per kw of the aggregate input rating of all appliances installed in that space and an un confined space as a space 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 ap pliances installed in that space Rooms communi cating directly with the space in which the appli ances are installed through openings not fur nished with doors are considered a part of the un confined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills be tween them 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 pas sageways or ventilation grills between the rooms 113052 01A www desatech com 5 AIR FOR COMBUSTION AND VENTILATION Continued 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 vol ume of space If additional ventilation to adjoining room is sup plied with grills or openings add the volume of these rooms to the total volume of the space Multiply the space volume by 20 to determine the ma
32. eration of this heater Ay WARNING Any change to this heater or its controls can be dangerous A WARNING Do not use any accessory not approved for use with this heater Due to high temperatures the appliance should be located out of traffic and away from furni ture 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 surface to avoid burns or clothing ignition Heater will re main hot for a time after shut down Allow surface to cool be fore touching Carefully supervise young chil dren 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 combustible ma terials gasoline and other flam mable vapors and liquids This appliance is only for use with the type of gas indicated on the rating plate This appli ance is not convertible for use with other gases Do not place propane LP supply tank s in side any structure Locate propane LP supply tank s outdoors This heater shall not be installed in a bedroom or bathroom 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 Immed
33. iately 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 113052 01A www desatech com 3 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 mon oxide may result 6 This heater needs fresh outside air ventila tion to run properly This heater has an Oxy gen Depletion Sensing ODS safety shutoff system The ODS shuts down the heater if not enough fresh airis available See Air for Com bustion and Ventilation pages 5 through 7 7 Tf heater shuts off do not relight until you pro vide fresh outside air If heater keeps shut ting 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 Immediately 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 and unplug heater and let cool be fore servicing Only a qualified service per son should service and repair 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
34. ied 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 Refer to Air for Combustion and Ventilation section on page 5 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 TABLE OF CONTENTS Safety Information esses 32 Troubleshooting iiec ere ee ose irae 20 Local Codes epe eee 4 Specifications eletti 23 Product Identification essssssss 4 Illustrated Parts Breakdown and Parts List 24 Unpacking uie iie co a pue ete ce reet 4 Replacement Parts sess Product Features cccescceeseeseeeeseeseeeeeeeetsees 4 Service Publications Air For Combustion and Ventilation 5 Service Hints Installation iva tp 7 Technical Service Operating Heater ssssssssssseee 14 A Accessories Inspecting Heater oooocconccinccconcconcccnncconncnonnnnnno 18 Parts Central Cl
35. ints on the heater includes control knobs and grill For purposes of input adjustment VN18A VN18TA Btu Variable 6 600 12 000 18 000 Type Gas Natural Only Ignition Electronic Pressure Regulator Setting 6 W C Inlet Gas Pressure in of water Maximum 10 5 Minimum d Dimensions Inches H x W x D Heater 2425x 1825x 7 Carton 2625x2125x9 Weight pounds Heater 20 Shipping 25 VN30A VN30TA 6 600 18 000 30 000 Natural Only Electronic 6 W C 10 5 7 24 25 x 25 75 x 7 26 25 x 29 x 9 28 33 Note Dimensions listed are outer most points on the heater includes control knobs and grill For purposes of input adjustment 113052 01A www desatech com 23 ILLUSTRATED PARTS BREAKDOWN CABINET BODY MODELS VP16A VN18A VP26A VN30A VP16TA VN18TA VP26TA AND VN30TA See Pages 28 through 31 Replacement N we may vary from X See Pages grill shown PES 28 through 31 NX O Install Battery According To CD This Illustration AAA Battery Negative UP 24 www desatech com 113052 01A 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 VP16A VP16TA VN18A VN18TA DESCRIPTION QTY 107672 01 107672 01 107672 01 107672 01 Front Panel 103476 01 103476 01 103476 01 103476 01 Grill Guard 104
36. l of heater 2 Place heater onto mounting bracket Slide horizontal slots onto stand out tabs on mount ing bracket Horizontal Slots Mounting Bracket attached to wall Figure 11 Mounting Heater Onto Mounting Bracket Installing Bottom Mounting Screws 1 Locate two bottom mounting holes These holes are near bottom on back panel of heater see Figure 12 Mark screw locations on wall Remove heater from mounting bracket Tf installing bottom mounting screws into hol low or solid wall install wall anchors Fol low steps 1 through 4 under Attaching To Wall Anchor Method pages 9 and 10 Tf 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 se cured 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 12 and 13 Front View Wall Heater x Sa Omm Spacer Side View Figure 12 Installing Bottom Mounting Screws 10 www desatech com 113052 01A
37. nd VN30TA the main burner should light Set control knob to any heat level between 1 and 5 see Figure 25 For infrastat models the plaque directly above the pilot should light A CAUTION Do not try to ad just heating levels by using the equipment shutoff valve Ignitor Button Plaque Control Knob Control Knob Figure 22 Control Knob In The OFF Position Models VP16TA VN18TA VP26TA amp VN30TA Ignitor Button Thermostat Control Knob Figure 23 Thermostat Control Knob In The OFF Position Models VP16ITA amp VN22ITA Control Knob VN18TA Thermocouple Ignitor Electrode Pilot Burner Figure 24 Pilot VP16TA VP26TA VN30TA on ill Figure 25 Burner Patterns 113052 01A OPERATING HEATER Continued TO SELECT HEATING LEVEL INFRASTAT MODELS VP16ITA AND VP22ITA ONLY A WARNING When running heater set control knob at the 1 2 3 or 4locked 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 ad just heating levels by using the equipment shutoff valve 1 Slightly press in plaque control knob on right side of heater and turn counterclock wise y to the desired position IMPORTANT Release downward pressure while turning control knob Control knob will lock at the desired position 2 Fo
38. nnot reach your gas supplier call the fire department C Use only your hand to push in or turn the Figure 21 Burner Pattern ix Non gas control knob Never use tools If the Thermostat Models knob will not push in or turn by hand don t try to repair it call a qualified service tech m TO TURN OFF GAS nician or gas supplier Force or attempted TO APPLIANCE repair may result in a fire or explosion Shutting Off Heater D Donotuse this appliance if any part has been 1 Turn control knob clockwise to the under water Immediately call a qualified ser OFF position vice technician to inspect the appliance and 2 Turn off all electric power to the appliance to replace any part of the control system and if service is to be performed any gas control which has been under water Shutting Off Burner Only pilot stays lit Turn control knob clockwise X to the PILOT position 113052 01A www desatech com 15 OPERATING HEATER Continued LIGHTING INSTRUCTIONS STOP Read the safety information page 15 column 2 Make sure equipment shutoff valve is fully open Turn thermostat control knob clockwise N to the OFF position see Figure 22 or 23 for your model 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 page 15 column 2 If you don t smell gas go to the next step Turn thermost
39. partially clogged 3 Clean ODS pilot see Cleaning and Maintenance page 19 Gas odor even when control 1 Gas leak See Warning 1 Locate and correct all leaks knob is in OFF position statement at top of page see Checking Gas Connec tions pages 12 and 13 2 Control valve defective Replace control valve Gas odor during combustion 1 Foreign matter between con 1 Take apart gas tubing and re trol valve and burner move foreign matter 2 Gas leak See Warning 2 Locate and correct all leaks statement at top of page see Checking Gas Connec tions pages 12 and 13 Moisture condensation noticed 1 Not enough combustion ven 1 Refer to Fresh Air for Com on windows tilation air bustion and Ventilation re quirements page 5 22 www desatech com 113052 01A 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 25x7 24 25 x 18 25x 7 24 25 x 25 75 x7 24 25 x 25 75 x7 Carton 2625x2125x9 2625x2125x9 26 25x29x9 2625x29x9 Weight pounds Heater 20 20 28 28 Shipping 25 25 33 33 Note Dimensions listed are outer most po
40. pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color Blue Flame Pilot Burner Thermocouple Figure 27 Correct Pilot Flame Pattern Yellow Flame Thermocouple Pilot Burner Figure 28 Incorrect Pilot Flame Pattern BURNER FLAME PATTERN Figure 29 shows a correct burner flame pattern Figure 30 shows an incorrect burner flame pattern If burner flame pattern is incorrect as shown in Figure 30 turn heater off see To Turn Off Gas to Appli ance page 15 or 17 depending on your model see Troubleshooting pages 20 through 22 T i Em Figure 29 Correct Burner Flame Pattern rro Ha A Dusty Figure 30 Incorrect Burner Flame Pattern 18 www desatech com 113052 01A CLEANING AND MAINTENANCE AX WARNING Turn off heater and let cool before cleaning A CAUTION You must keep control areas burner and cir culating air passageways of heater clean Inspect these ar eas of heater before each use Have heater inspected yearly by a qualified service person Heater may need more frequent cleaning
41. properly installed operated and main tained 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 Heating Products Authorized Service Center Warranty part s MUST be obtained through authorized dealers of this prod uct and or DESA Heating Products 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 and 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 MERCHANTABI
42. r standard models T turn thermostat control knob on left side of heater to any set ting between LO and HI For infrastat mod els ITA 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 Control Knob VP16ITA VP22ITA E AN LT NS 7 TE E Eoo NON Figure 26 Burner Patterns Models VP16ITA and VP22ITA TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Turn thermostat control knob clockwise 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 x to the PILOT position EN o NEM 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 ex ceed 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 heating level between 1 and 5 All plaques will turn off and on For infrastat models ITA the control knob can be set at the 1 2 3 or 4 locked posi
43. re 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 Heater produces aclicking tick 1 Metal expanding while heating REMEDY 1 This is common with most heat ing noise just after burner is lit or shut off or contracting while cooling ers If noise is excessive con tact qualified service person White powder residue forming 1 When heated vapors from fur 1 Turn heater off when using within burner box or on adja niture polish wax carpet furniture polish wax carpet cent walls or furniture cleaner etc may turn into cleaners or similar products white powder residue Heater produces unwanted 1 Heater burning vapors from 1 Ventilate room Stop using odors paint hair spray glues etc See odor causing products while IMPORTANT statement above heater is running 2 Low fuel supply propane LP gas 2 Refill supply tank 3 Gas leak See Warning 3 Locate and correct all leaks statement at top of page see Checking Gas Connec tions pages 12 and 13 Heater shuts off in use ODS 1 Not enough fresh air is 1 Open window and or door for operates available ventilation 2 Low line pressure Contact local natural or pro pane LP gas company 3 ODS pilot is
44. t after several tries refer to Troubleshooting pages 20 through 22 contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 15 Keep control knob pressed in for 30 sec onds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 Control Knob N Figure 19 Control Knob In The OFF Position for Non Thermostat Models Thermocouple Ignitor Electrode Pilot 1 STOP Read the safety information above Burner 2 Make sure equipment shutoff valve is fully open 3 Turn control knob clockwise to the OFF position 4 Wait five minutes to clear out any gas Then smell for gas including near the floor If ou smell gas STOP Follow B in the P dn beatos above If you don t smell Figure 20 Ros gas go to the next step 14 www desatech com 113052 01A OPERATING HEATER M MANUAL LIGHTING Continued PROCEDURE TO SELECT 1 Remove front panel see Figure 7 page 8 ien HEATING LEVEL iH 2 Follow steps 1 through 5 under Lighting In structions page 14 A WARNING When running 3 With control knob pressed in strike match heater set control knob at LOW Hold match to pilot until pilot lights MEDIUM or HIGH locked posi 4 Keep control knob pressed in for 30 sec tions Never set control knob onds after lighting
45. tions 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 tempera ture depending on housing construction instal lation location room size open air tempera tures etc Frequent use of your heater will let you determine your own comfort levels MANUAL LIGHTING PROCEDURE Remove front panel see Figure 7 page 8 Follow steps 1 through 5 under Lighting In structions page 16 3 With thermostat control knob pressed in strike match Hold match to pilot until pi lot lights 4 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 16 5 Replace front panel 113052 01A www desatech com 17 INSPECTING HEATER Check pilot flame pattern and burner flame pat tern often PILOT FLAME PATTERN Figure 27 shows a correct pilot flame pattern Figure 28 shows an incorrect pilot flame pattern The incor rect pilot flame is not touching the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down Tf pilot flame pattern is incorrect as shown in Fig ure 28 e turn heater off see To Turn Off Gas to Appli ance page 15 or 17 depending on your model see Troubleshooting pages 20 through 22 Note The
46. to the pilot tube Clean the pilot assembly also A yellow tip on the pilot flame indicates dust and dirt in the pilot as sembly There is 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 Figure 31 Pilot Air Inlet CABINET Air Passageways e Use a vacuum cleaner or pressurized air to clean Exterior Use a soft cloth dampened with a mild soap and water mixture Wipe the cabinet to remove dust 113052 01A www desatech com 19 TROUBLESHOOTING Note All troubleshooting items are listed in order of operation A WARNING Turn off and unplug heater and let cool before servic ing Only a qualified service 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 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 Ignitor electrode not con nected to ignitor cable 4 Ignitor cable pinched or wet un Broken ignitor cable Bad ignitor 7 Battery not installed battery power low or battery not in stalled correctly electronic ig nition models onl
47. ue loss of volume will occur Typical Inlet Pipe Diameters VNI8A VNI8TA VP16A VPI6TA and VPI6ITA 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 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 go ing into pipe Excess sealant in pipe could result in clogged heater valves A WARNING Use pipe joint sealantthat is resistantto liquid petroleum LP gas Pressure Regulat TY 3 8 NPT Regulator Pipe Bracket Nipple Heater Ground Cabinet Joint 5 Union 3 Tee Joint Equipment Reducer Shutoff 3 Bushing to Valve o d iid W s Natural Gas 5 3 From Gas Plug Tap in Meter 7 W C to 10 5 W C ME oin ipple From External Sediment Trap Regulator 11 W C to 14 W C Pressure ACSA design certified equipment shutoff valve with 1 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 33 Figure 15 Gas Connection CHECKING GAS CONNECTIONS WARNIN
48. ugh 17 Check all other internal joints for leaks 7 Turn off heater see To Turn Off Gas to Appli ance page 15 or 17 depending on your model 8 Replace front panel Open Equipment Shutoff Valve Closed Figure 16 Equipment Shutoff Valve Thermostat Gas Valve I M Equipment Shutoff Valve Figure 17 Checking Gas Joints for Natural Gas Thermostat Gas Valv o Propane LP Supply Tank 2 For natural gas open main gas valve located gt Equipment on or near gas meter For propane LP gas open Shutoff propane LP supply tank valve Valve 3 Make sure control knob of heater is in the OFF Figure 18 Checking Gas Joints for position Propane LP Gas 113052 01A www desatech com 13 OPERATING HEATER NON THERMOSTAT MODELS El FOR YOUR SAFETY READ BEFORE LIGHTING A WARNING If you do not fol low these instructions exactly a fire or explosion may result causing property damage per sonal injury or loss of life A n This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next tothe 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
49. wer Btu Hr heater if lower Btu Hr size makes room unconfined Tf the actual Btu Hr used is less than the maximum Btu Hr the space can support the space is an uncon fined space You will need no additional fresh air ven ilation A WARNING If the area in which the heater may be oper ated is smaller than that defined as an unconfined space or if the building is of unusually tight construction provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 or applicable local codes VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining un confined space When ventilating to an adjoining unconfined space you must provide two perma nent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts NP Ventilation Grills Into Adjoining Room Ventilation Option 2 Grills Or i into Adjoining Remove Door into Option 1 Adjoining N Room Option 3 A Figure 2 Ventilation Air from Inside Building www desatech com 113052 01A AIR
50. ximum Btu Hr the space can support volume of space x 20 Maxi mum Btu Hr the space can support Example 2560 cu ft volume of space x 20 51 200 maximum Btu Hr the space can support 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 Di rect vent draws combustion 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 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 maxi mum Btu Hr the space can support You must pro vide additional fresh air Your options are as follows A Rework worksheet adding the space of an adjoin ing room If the extra space provides an uncon fined space remove door to adjoining room or add ventilation grills between rooms See Ventilation Air From Inside Building Vent room directly to the outdoors See Ventila tion Air From Outdoors page 7 C Install a lo
51. y a 1 Replace pilot assembly 2 Replace pilot assembly 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Replace ignitor cable Replace ignitor 7 Install new alkaline battery in electronic ignitor Verify bat tery is installed correctly QN tA When ignitor button is pressed in there is a spark at ODS Pilot but no ignition 1 Gas supply turned off or equip ment shutoff valve closed 2 Control knob not fully pressed in while pressing ignitor but ton non thermostat models only Thermostat control knob not fully pressed in while pressing ignitor button thermostat models only 3 Airin gas lines when installed 4 Depleted gas supply propane LP gas 5 ODS pilot is clogged 6 Gas regulator setting is not correct 7 Thermostat control knob is not in pilot position thermostat models only 1 Turn on gas supply or open equipment shutoff valve 2 Turn to PILOT IGN position Fully press in control knob while pressing ignitor button non thermostat models only Fully press in thermostat con trol knob while pressing igni tor button thermostat models only 3 Continue holding down con trol knob Repeat igniting op eration until air is removed 4 Contact local propane LP gas company 5 Clean ODS pilot see Cleaning and Maintenance page 19 or replace ODS pilot assembly 6 Replace gas regulator 7 Turn thermostat control knob
Download Pdf Manuals
Related Search