Desa A User's Manual
Contents
1. 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 Example Gas water heater 40 000 BTU Hr Vent free heater 18 000 BTU Hr Total 58 000 BTU Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 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 58 000 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 Rework worksheet adding the space of an adjoining room If the extra space provides an unconfined space remove door to adjoining room or add ventilation grills between rooms See Ventilation Air From Inside Building page 7 B Vent room directly to the outdoors See Ventilation Air From Outdoors page 8 C Install a lower BTU Hr heater if lower BTU Hr size makes room unconfined If the actual BTU Hr used is less than the maximum BTU Hr the space can support the space is an unconfined2. 098517 01 098251 04 098250 01 098867 04 099553 01 098518 01 098297 03 098264 02 098276 01 098277 01 098265 01 098275 01 098522 04 098531 01 097159 01 M11084 26 M11084 38 099066 01 098305 01 DESCRIPTION Screw 10 x 3 8 Front Panel Comfort Glow Front Panel Touch n Glow Grill Guard Clip Grill Guard Bottom Glass Retainer Glass Panel Top Glass Retainer Screw 10 x 3 8 Deflector Unit Ignitor Cable Nut M5 ODS Pilot Assembly Thermocouple Ignitor Electrode Burner 3 16 Pilot Tubing Injector Injector Holder Pressure Regulator Pilot Shield 3 8 Outlet Burner Tubing 3 8 Inlet Tubing 3 8 NPT Male Connector 1 8 NPT Plug 3 8 to 1 8 NPT Bushing 3 8 NPT Male Elbow 3 8 NPT Plug Thermostat Gas Valve Control Valve Cabinet Piezo Ignitor Valve Retainer Nut Screw 10 x 3 8 Screw 8 x 3 8 Mounting Bracket 1 2 NPT Female Elbow Control Knob This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 29 of this manual 2 1 1 1 2 1 1 4 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 099569 NOTES 099569 NOTES 099569 W
3. ILLUSTRATED PARTS LIST Manual Control 18 000 BTU Hr Non Thermostat Model Parts list on page 33 ODS Pilot Assembly Parts list on page 33 12 1 12 2 099569 Shown See page 31 for Manual Control Valve NOTE Thermostat Gas Valve 099569 PARTS LIST 18 000 BTU Hr Non Thermostat 098304 01 098742 03 098197 01 098342 01 098533 01AA 098260 01 098532 01AA M11084 26 098352 01BR 098271 02 098249 01 099440 05 098514 01 098515 01 099120 02 098517 01 098251 02 098250 01 098867 04 099553 01 098519 01 098298 03 098265 01 098246 02 098529 01 097159 01 098508 01 M11084 26 M11084 38 099066 01 098268 02 098354 01 PARTS AVAILABLE NOT SHOWN Control Position Label 098306 01 PART NUMBER FOR Thermostat 098304 01 098742 03 098742 07 098197 01 098342 01 098533 01AA 098260 01 098532 01AA M11084 26 098352 01BR 098271 02 098249 01 099440 05 098514 01 098515 01 099120 02 098517 01 098251 02 098250 01 098867 04 099553 01 098518 01 098297 03 098264 02 098276 01 098277 01 098265 01 098275 01 098522 03 098530 01 097159 01 M11084 26 M11084 38 099066 01 098305 01 18 000 BTU Hr 28 000 BTU Hr Thermostat 098304 01 098742 04 098742 08 098197 02 098342 01 098533 02AA 098260 02 098532 02AA M11084 26 098352 02BR 098271 02 098249 01 099440 05 098514 01 098515 01 099126 02
4. e in a recreational vehicle ve e where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater e as a fireplace insert e in high traffic areas e in windy or drafty areas 5 This heater needs fresh outside air ventilation to run properly This heater has an oxygen depletion sensor ODS pilot light safety system The ODS shuts down the heater if not enough fresh air is available See Fresh Air for Combus tion and Ventilation pages 5 through 8 6 Never run heater in small closed room Open door into next room to help ventilate 7 If heater shuts off do not relight until you provide fresh outside air If heater keeps shutting off have it serviced 8 Do not run heater e where flammable liquids or vapors are used or stored e under dusty conditions 9 Never place any objects on the heater 10 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 remain hot for a time after shut down Allow surface to cool before touching 11 Carefully supervise young children when they are in the same room with heater 12 Make sure grill guard is in place before running heater 13 Do not use heater if any part has been under water Immediately call a quali fied service technician to inspect the room heater and to replace any part of the control system and any gas control whi
5. local codes Use pipe of large enough diameter to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur Typical Pipe Diameters 18 000 BTU Hr Models 3 8 or greater 28 000 BTU Hr Model 1 2 or greater Installation must include a manual 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 13 page 15 Apply pipe joint sealant lightly to male threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves A CAUTION Use pipe joint sealant that is resistant to liquid petroleum LP gas Install sediment trap in supply line as shown in Figure 13 page 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 099569 CONNECTING TO GAS SUPPLY Continued CHECKING GAS CONNECTIONS IMPORTANT Hold pressure regulator with wrench when connecting it to gas piping and or fittings Pressure Regulator 1 2 NPT Pipe Nipple Heater binant 5 F Ground Joint Union Cabinet A Tee Joint cL Manual Test Reducer lt z tee Gauge Bushing to us Connec
6. page 15 099569 TECHNICAL SERVICE SPECIFICATIONS SERVICE HINTS SERVICE PUBLICATIONS You may have further questions about installation operation or troubleshooting If so contact DESA International s Technical Service Department at 1 800 323 5190 18 000 BTU Hr Models B T U Variable 9 000 18 000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3 W C Inlet Gas Pressure in of water Maximum 10 5 Minimum 4 Dimensions Inches H x W x D Heater 23 5 x 18 5 x 8 0 Carton 25 8 x 21 3 x 10 1 Weight pounds Heater 22 Shipping 27 When gas pressure is too low e pilot will not stay lit e burner will have delayed ignition e heater will not produce specified heat When gas quality is bad e pilot will not stay lit e burner will produce flames and soot e heater will backfire when lit You may feel your gas pressure is too low or gas quality is bad If so contact your local natural gas supplier 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 28 000 BTU Hr Model 14 000 28 000 Natural Only Piezo 3 W C 10 5 4 23 5 x 25 9 x 8 0 25 8 x 28 7 x 10 1 30 35 099569 REPLACEMENT PARTS PARTS CENTRALS Note Use only original replacement parts This will protect your warranty cover age for parts replaced under warranty Parts Under Wa
7. textiles etc create fumes These fumes may mix with combustion air and create odors OBSERVED POSSIBLE PROBLEM CAUSE REMEDY Heater produces a 1 Metal expanding while 1 This is common with clicking ticking noise just after burner is lit heating or contracting while cooling most heaters If noise is excessive contact or shut off qualified service person Heater produces 1 Heater burning vapors 1 Ventilate room Stop unwanted odors from paint hair spray using odor causing glues etc See IMPOR products while heater is TANT statement running above 2 Gas leak See Warn 2 Locate and correct all ing statement at leaks see Checking Gas top of page connections page 15 Heater shuts off in 1 Not enough fresh air is 1 Open window and or use ODS operates available door for ventilation 2 Low line pressure 2 Contact local natural gas company 3 ODS pilot is partially 3 Clean ODS pilot see clogged Cleaning and Mainte nance page 24 Gas odor even when 1 Gas leak See Warn 1 Locate and correct all control knob is in ing statement at leaks see Checking Gas OFF position top of page Connections page 15 2 Control valve defective 2 Replace control valve Gas odor during 1 Foreign matter be 1 Take apart gas tubing combustion tween control valve and remove foreign and burner matter 2 Gas leak See Warn 2 Locate and correct all ing statement at top of page leaks see Checking Gas Connections
8. ARRANTY 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 BLUE FLAME VENT FREE NATURAL GAS HEATERS DESA International warrants this product to be free from defects in materials and components for one 1 year 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 b
9. BLUE FLAME VENT FREE NATURAL GAS HEATER OWNER S OPERATION AND INSTALLATION MANUAL Heater Sizes 18 000 BTU Hr Non Thermostat 18 000 BTU Hr Thermostat and 28 000 BTU Hr Thermostat A Model Heaters 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 Do not try to light any appliance Donottouch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier Save this manual for future reference CONTENTS SAFETY INFORMATION SECTION PAGE Safety Information css ccc cecsteveo see aetna lee SEEE REER ta 2 Product Identification 0 00 ce eeeceesseeeseceeeceeeeeeeseceeaeceeaaeceeeeeaes 4 Local COdES meienoar teed aad ee ERA BIA hte es 4 Unpack oe nen a cto dee a Dod Gas Sedat tetas chess 4 Product FE attes 2 sieves LvercicenaeePectaneteved tevectieiasdtevigheiwetyyiniaeiate 4 Fresh Air For Combustion And Ventilation eee eeeeeeeeeeees 5 Installi
10. Branch NJ 07764 908 870 8809 1 800 755 8809 Tarantin Tank Co P O Box 6129 Freehold NJ 07728 908 780 9340 1 800 922 0724 Albany Ladder 1586 90 Central Avenue Albany NY 12205 NY MA VT 518 869 5335 1 800 354 7368 Halco Enterprises 208 Carter Drive Unit 21 West Chester PA 19382 215 696 2670 1 800 368 0803 Dayton Hardware P O Box 275 North Dayton Station Dayton OH 45404 All States 513 258 3721 OH 1 800 762 3426 Cans Unlimited Inc P O Box 645 Taylor SC 29687 All States 803 879 3009 1 800 845 5301 Dealers LP P O Box 341145 Bartlett TN 38184 AL TN 901 386 8780 099569 ACCESSORIES Purchase these heater accessories from your local dealer If they can not supply these accessories either contact your nearest Parts Central see page 29 or call DESA International s Parts Department at 1 800 972 7879 for information You can also write to the address listed on the back page of this manual FAN KITS GA2100A amp GA3100 For all models Provides better heat distribution Makes heater more efficient Complete installation and operating instructions included FLOOR MOUNTING STAND 18 000 BTU Hr Models GA4000B 28 000 BTU Hr Model GA4010B For locating heater on the floor away from a wall Complete installation instructions included MANUAL SHUTOFF VALVE GA5010 For all models Manual shutoff valve with 1 8 NPT tap 099569
11. Control Knob Ignitor Button Figure 16 Control Knob In The OFF Position Continued 099569 OPERATING HEATER Thermostat Models Continued 4 Wait five 5 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 at the top of page 17 If you don t smell gas go to the next step 5 Turn control knob counterclockwise to the PILOT position Press in control knob for five 5 seconds see Figure 16 Note You may be running this heater for the first time after hooking up to gas supply If so the control knob may need to be pressed in for 30 seconds 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 ignitor button This will light pilot The pilot is attached to the front of burner The pilot can be seen through the glass panel If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 24 through 27 Also 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 19 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Ign
12. GHTING E A This appliance has a pilot which must be lighted by hand When lighting B EE LIGHTING INSTRUCTIONS M 1 STOP Read the safety information above 2 Make sure manual shutoff valve is fully open 3 Turn control knob clockwise N to the OFF position A WARNING If you do not follow these instructions exactly a fire or explo sion may result causing property damage personal injury or loss of life the pilot follow these instructions exactly 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 e Do not try to light any appliance e Do not touch any electric switch do not use any phone in your build ing e 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 technician 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 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
13. R Non Thermostat Model Continued INSPECTING BURNER GN TO TURN OFF GAS To APPLIANCE M Shutting Off Heater 1 Turn control knob clockwise N to the PILOT position 2 Press in control knob and turn clockwise X to the OFF position 3 Turn off all electric power to the appliance if service is to be performed Shutting Off Burner Only pilot stays lit 1 Turn control knob clockwise N to the PILOT position GE MANUAL LIGHTING PROCEDURE D 1 Remove front panel see Figure 7 page 11 2 Follow steps 1 through 5 under Lighting Instructions pages 20 and 21 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 5 Replace front panel Check pilot flame pattern and burner flame pattern often PILOT FLAME PATTERN Figure 20 shows a correct pilot flame pattern Figure 21 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 Thermocouple Pilot Burner Pilot Burner Figure 21 Incorrect Pilot Flame Pattern 099569 INSPECTING BURNER Continued If pilot flame pattern is incorrect as shown in Figure 21 e turn heater off see To Turn Off Gas to Appliance page 19 thermostat models or page 22 non thermosta
14. alls 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 2 Fold wall anchor as shown in Figure 9 Figure 9 Folding Anchor 3 Insert wall anchor wings first into hole Tap anchor flush to wall 099569 INSTALLING TO WALL Continued 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 N N Figure 10 Popping Open Anchor Wings For Thin Walls 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 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 e Horizontal Slots Stand Out Tab Mounting Bracket attached to wall o 0 00 ee o 0 00 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 2 Mark screw locations on wall 3 Remove heater from mounting bracket 4 Ifinstalli
15. at Sensing Bulb 099569 INSTALLING TO WALL Continued INSTALLING HEATER TO WALL Mounting Bracket The mounting bracket is located on back panel of heater It has been taped there for shipping Remove mounting bracket from back panel Mounting Bracket Figure 6 Bracket Location Removing Front Panel Of Heater 1 Remove two screws near bottom corners of front panel 2 Lift straight up on grill guard until it stops Grill guard will slide up about 1 4 3 Pull bottom of front panel forward then downward 4 Remove cardboard packing from grill and glass 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 16 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 Continued 099569 INSTALLING TO WALL Continued Marking Screw Locations 1 Tape m
16. ces open to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 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 gt Ventilated Attic Outlet on To Attic Inlet TOT Air Inlet Air Ventilated Crawl Space Figure 3 Ventilation Air from Outdoors 099569 INSTALLING NOTICE TO WAL L A qualified service person must install heater Follow all local codes CHECK GAS TYPE Use only natural gas If your gas supply is not natural gas 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 piping check local codes e test gauge connection see e sealant resistant to propane gas Figure 13 page 15 e manual shutoff valve e sediment trap e ground joint union e tee joint e pipe wrench AnA G A design certified manual shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 30 LOCATING HEATER This heat
17. ch has been under water 14 Turn off and unplug heater and let cool before servicing Only a qualified service person should service and repair heater 15 Operating heater above elevations of 4 500 feet may cause pilot outage 099569 Ignitor Button Control Knob PRODUCT IDENTIFICATION Mm PO Lie TT LOTT A LCI J NT NE ip soe eS ay ier a a a ae a ae ee ee te SSS SEER Grill Sr a Guard Ti Glass Panel ip 8s Heater Cabinet Figure 1 Vent Free Natural Gas Heater 28 000 BTU Hr Model Shown LOC AL COD ES 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 also known as 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 U N P AC KI NG 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 p RO D UCT Safety Device This heater has a pilot with an Oxygen Depletion Sensor Shutoff System ODS F EATU R ES 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 Syste
18. e manual shutoff valve see Figure 14 2 Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter 3 Check all joints from gas meter to manual shutoff valve see Figure 15 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once PRESSURE TESTING HEATER GAS CONNECTIONS Open manual shutoff valve see Figure 14 Open main gas valve located on or near gas meter Make sure control knob of heater is in the OFF position Check all joints from manual shutoff valve to thermostat gas valve thermostat models or control valve non thermostat model see Figure 15 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct all leaks at once 6 Light heater see Operating Heater pages 17 through 22 Check the rest of the internal joints for leaks 7 Turn off heater see To Turn Off Gas to Appliance page 19 thermostat models or page 22 non thermostat model 8 Replace front panel Fe oe pa an Manual Shutoff J X Valve Closed Figure 14 Manual Shutoff Valve Thermostat Gas Valve or Control Valve Location Gas Meter Manual Shutoff Valve Figure 15 Checking Gas Joints 099569 OPERATING HEATER Thermostat Models MN FOR YOUR SAFETY READ BEFORE LI
19. ecause 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO ONE 1 YEAR FROM THE DATE OF FIRST PURCHASE AND DESA INTERNATIONAL S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL SHALL NOT BE LIABLE 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 DESA INTERNATIONAL 2701 Industrial Drive P O Box 90004 099569 01 Bowling Green KY 42102 9004 eg For information about this warranty write 5 94
20. er is designed to be mounted on a wall A WARNING Maintain the minimum clearances shown in Figure 4 page 10 If you can provide greater clearances from floor ceiling and joining wall You can locate heater on floor away from a wall An optional floor mounting stand is needed Purchase the floor mounting stand from your dealer See Accessories page 30 A WARNING Never install the heater in a bedroom or a bathroom in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater as a fireplace insert e in high traffic areas e in windy or drafty areas CAUTION This heater creates warm air currents These currents move heat to wall surfaces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities in the air such as tobacco smoke exist may discolor walls 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 moisture See Fresh Air for Combustion and Ventilation pages 5 through 8 Continued A 099569 INSTALLING TO WALL Continued A CAUTION If you install the heater in a home garage e heater pilot and burner must be at least 18 inches above floor e locate heater where moving veh
21. ermostat 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 tempera tures etc Frequent use of your heater will let you determine your own comfort levels GE MANUAL LIGHTING PROCEDURE aa 1 Remove front panel see Figure 7 page 11 2 Follow steps 1 through 5 under Lighting Instructions pages 17 and 18 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 5 Replace front panel 099569 OPERATING HEATER Non Thermostat Model MM FOR YOUR SAFETY READ BEFORE LIGHTING BE WARNING If you do not follow these instructions exactly a fire or explo sion may result causing property damage personal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance e Do not touch any electric switch do not use any phone in your build ing e Immediately call your gas supplier from a neighbor s phone F
22. f heater clean Inspect these areas of heater before each use Have heater inspected yearly by a qualified service person Heater may need more frequent cleaning due to excessive lint from carpeting bedding material etc ODS PILOT AND BURNER e Use a vacuum cleaner pressurized air or small soft bristled brush to clean CABINET Air Passageways e Use a vacuum cleaner or pressurized air to clean Exterior e Use a soft cloth dampened with a mild soap and water mixture Wipe the cabinet to remove dust A WARNING Turn off and unplug heater and let cool before servicing 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 1 is pressed there is no spark at ODS pilot 2 Ignitor electrode not con Ignitor electrode posi tioned wrong Ignitor electrode broken nected to ignitor cable Ignitor cable pinched or wet Piezo ignitor nut is loose Broken ignitor cable Bad piezo ignitor 1 Replace ignitor 2 Replace ignitor 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 5 Tighten nut holding piezo ignitor to heater cabinet Nut is located inside heater cabinet at top 6 Replace ignitor cable 7 Replace piezo i
23. gnitor 099569 TROUBLE SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE REMEDY When ignitor button 1 Gas supply turned off 1 Turn on gas supply or is pressed there is spark at ODS pilot but no ignition or manual shutoff valve closed Control knob not in PILOT position Control knob not pressed in while in PILOT position Air in gas lines when installed ODS pilot is clogged Gas regulator setting is not correct open manual shutoff valve 2 Turn control knob to PILOT position 3 Press in control knob while in PILOT position 4 Continue holding down control knob Repeat igniting operation until air is removed 5 Clean ODS pilot see Cleaning and Mainte nance page 24 or replace ODS pilot assembly 6 Replace gas regulator ODS pilot lights but flame goes out when control knob is released Control knob not fully pressed in Control knob not pressed in long enough Safety interlock system has been triggered Thermostat models only Manual shutoff valve not fully open Thermocouple connec tion loose at control valve Pilot flame not touch ing thermocouple which allows thermo couple to cool causing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot Thermocouple dam aged Control valve damaged 1 Press i
24. icle will not hit it For convenience and efficiency install heater e where there is easy access for operation inspection and service e in coldest part of room An optional fan kit is available from your dealer See Accessories page 30 If planning to use fan locate heater near an electrical outlet a ____ CEILING 36 e Minimum Minimum From Sides Of Heater Left Right Side Side E 3 Minimum To Top Surface t Of Carpeting Tile Or Other Combustible Material FLOOR Figure 4 Mounting Clearances As Viewed From Front of Heater THERMOSTAT SENSING BULB Thermostat Models Only The thermostat sensing bulb has been placed inside the heater for protection during shipping Locating Thermostat Sensing Bulb 1 Remove front panel of heater see Figure 7 page 11 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 Clamp Figure 5 Attaching Thermost
25. itor Electrode Thermocouple Pilot Burner Figure 17 Pilot Note If pilot goes out repeat steps 3 through 7 This heater has a safety interlock system Wait one 1 minute before lighting pilot again 8 Turn control knob counterclockwise to desired heating level The main burner should light Set control knob to any heat level between HI and LO A CAUTION Do not try to adjust heating levels by using the manual shutoff valve 099569 OPERATING HEATER Thermostat Models Continued GE To TURN OFF GAS TO APPLIANCE M Shutting Off Heater 1 Turn control knob clockwise 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 1 Turn control knob clockwise to the PILOT position GE THERMOSTAT CONTROL OPERATION B Thermostat Models Only The thermostatic control used on these models differs from standard thermo stats Standard thermostats simply turn on and off the burner The thermostat used on this heater senses the room temperature The thermostat adjusts the amount of gas flow to the burner This increases or decreases the burner flame height 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 temperature The control knob can be set to any heat level between HI and LO Note The th
26. ll into one of the three following ventilation classifications 1 Unusually Tight Contruction 2 Unconfined Space 3 Confined Space The information on pages 5 through 8 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 Unusually tight construction is defined as construction where a walls and ceilings exposed to the outside atmosphere have a continu ous water vapor retarder with a rating of one perm or less with open ings gasketed or sealed and b weather stripping has been added on openable windows 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 addi tional fresh air See Ventilation Air From Outdoors page 8 If your home does not meet all of the three criteria above continue reading Unconfined Space An unconfined space has a minimum air volume of 50 cubic feet for each 1000 BTU Hr input rating of all appliances in the space cubic feet equals length x width x height of space Include adjoining rooms
27. m 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 valve This results in the greatest heater comfort This can also result in lower gas bills 099569 FRESH AIR FOR COMBUSTION AND VENTILATION A WARNING This heater must have fresh air for proper operation If not poor fuel combustion could result 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 PRODUCING ADEQUATE VENTILATION All spaces in homes fa
28. monoxide poisoning resemble the flu with 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 Gas Natural gas is odorless An odor making agent is added to natural gas The odor helps you detect a natural gas leak However the odor added to natural gas can fade Natural gas may be present even though no odor exists Make certain you read and understand all Warnings Keep this manual for refer ence It is your guide to safe and proper operation of this heater Safety Information continues on next page 099569 SAFETY INFORMATION Continued A WARNINGS Continued WARNING Any change to this heater or its controls can be dangerous 1 Use only natural gas Do not convert heater to use different fuel type 2 If you smell gas e shut off gas supply e do not try to light any appliance e do not touch any electrical switch do not use any phone in your building e immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e if you cannot reach your gas supplier call the fire department This heater shall not be installed in a bedroom or bathroom 4 Never install the heater
29. n control knob fully 2 After ODS pilot lights keep control knob pressed in 30 seconds 3 Wait one 1 minute for safety interlock system to reset Repeat ignition operation 4 Fully open manual shut off valve 5 Hand tighten until snug then tighten 1 4 turn more 6 A Contact local natural gas company B Clean ODS pilot see Cleaning and Maintenance page 24 or replace ODS pilot assembly 7 Replace thermocouple 8 Replace control valve Continued 099569 TROUBLE SHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS pilot is lit 1 Burner orifice is clogged 2 Burner orifice diameter is too small 3 Inlet gas pressure is too low 1 Clean burner see Cleaning and Mainte nance page 24 or replace burner orifice 2 Replace burner orifice 3 Contact local natural gas company Delayed ignition of burner 1 Manifold pressure is too low 2 Burner orifice is clogged 1 Contact local natural gas company 2 Clean burner see Cleaning and Mainte nance page 24 or replace burner orifice Burner backfiring during combustion 1 Burner orifice is clogged or damaged 2 Burner damaged 3 Gas regulator defective 1 Clean burner see Cleaning and Mainte nance page 24 or replace burner orifice 2 Replace burner 3 Replace gas regulator Yellow flame during burner combustion 1 Not enough air 2 Gas
30. ng To Wallinin e a eaa aeres 9 Connecting To Gas Supply ceceeeesssecseceeceeeceseeeeeeeseeesaeeneenseeees 14 Checking Gas Connections sessseeseeeeseereseseresersrssrssesrrsseeresereeen 15 Operating Heater Thermostat Models cceceeeeeseeeseceneeeeeees 17 Operating Heater Non Thermostat Model ee eeceeeeeesseeeeeees 20 Inspe ting BUMMEL serenana estoe aa iaa Eae e iner aan 22 Cleaning And Maintenance 0 eee eseessecseceeeceseceseeeeeesaeensenseeees 24 Trou bleshooun snr neea es eae ates eee onal 24 Technical Service assis aii ti tiie n aie eee te 28 Specifications i iiei Aae oleae lah ieee lee dea E E E eee se 28 Service FINS rnei e shadaeee E ETNEA RN 28 Seryic Publications esre enei E a E R 28 Replacement Parts sepiii enne aAa pa 29 Parts Centrals ienn a A ibn E ees 29 ACCESSOTIES sanaaa a a e O a ee E a 30 Mlustrated Parts Lists css ssscdesesicdeschsabhsut cageesbvedustoeseetptscte dis ae kni 31 32 Warranty Information 0 0 0 cee eeceeeceseeeneeeseeceeceseceseeeseeeneeeaaeentens Back Cover A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning A DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon
31. ng bottom mounting screws into hollow or solid wall install wall anchors Follow steps 1 through 4 under Attaching To Wall Anchor Method page 12 If installing bottom mounting screw into wall stud drill holes at marked loca tions 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 8 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 14 16 NAAN Figure 12 Installing Bottom Mounting Screws 099569 CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply Follow all local codes A WARNING Never connect heater to private non utility gas wells This gas is commonly known as well head gas IMPORTANT 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 Use only new black iron or steel pipe Internally tinned copper tubing may be used in certain areas Check your
32. ng up to gas supply If so the control knob may need to be pressed in for 30 seconds 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 ignitor button This will light pilot The pilot is attached to the front of burner The pilot can be seen through the glass panel If needed keep pressing ignitor button until pilot lights Note If pilot does not light refer to Troubleshooting pages 24 through 27 Also 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 22 Ignitor Electrode Thermocouple Pilot Burner Figure 19 Pilot 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 main burner should light Set control knob to any heat level between HIGH and LOW To turn control knob from LOW to a higher setting press in the control knob and turn counterclockwise y N Note Both HIGH and LOW are locked positions You must press in control knob before turning it from these positions CAUTION Do not try to adjust heating levels by using the manual shutoff valve Continued ontinue 099569 OPERATING HEATE
33. ollow the gas supplier s instructions If you cannot reach your gas supplier call the fire department C 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 technician 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 EE LIGHTING INSTRUCTIONS M 1 STOP Read the safety information above 2 Make sure manual shutoff valve is fully open 3 Turn control knob clockwise N to the OFF position Control Knob Ignitor Button IGNITOR Figure 18 Control Knob In The OFF Position 099569 OPERATING HEATER Non Thermostat Model Continued 8 Turn control knob counterclockwise to the LOW position The 4 Wait five 5 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 at the top of page 20 If you don t smell gas go to the next step 5 Press in control knob and turn counterclockwise to the PILOT position Keep control knob pressed in for five 5 seconds see Figure 18 Note You may be running this heater for the first time after hooki
34. only if there are doorless passageways or ventilation grills between the rooms Confined Space A confined space has an air volume of less than 50 cubic feet for each 1000 BTU Hr input rating of all appliances in the space cubic feet equals length x width x height of space Include adjoining rooms only if there are doorless passageways or ventilation grills between the rooms Conninued 099569 FRESH AIR DETERMINING FRESH AIR FLOW FOR HEATER LOCATION FOR Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space COM B USTION Space Includes the room in which you will install heater plus any adjoining rooms with AN D doorless passageways or ventilation grills between the rooms VENTI L ATION 1 Determine the volume of the space length x width x height Length x Width x Height cu ft volume of space Continued Example Space size 20 ft length x 16 ft width x 8 ft ceiling height 2560 cu ft volume of space If additional ventilation to adjoining room is supplied with grills or openings add the volume of these rooms to the total volume of the space 2 Divide the space volume by 50 cubic feet to determine the maximum BTU Hr the space can support volume of space 50 cu ft Maximum BTU Hr the space can support Example 2560 cu ft volume of space 50 cu ft 51 2 or 51 200 maximum BTU Hr the space can support
35. ounting bracket to wall where heater will be located Make sure mount ing bracket is level A WARNING Maintain minimum clearances shown in Figure 8 If you can provide greater clearances from floor and joining 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 11 16 71 4 16 Min D Min 3 4 g Only Insert Mounting 18 3 4 7 Only Insert Mounting 18 3 4 A Screws Through Last Min g Screws Through Last Min Hole On Each End e g Hole On Each End 3 A Floor Floor 28 000 BTU Hr Model 18 000 BTU Hr Models 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 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 w
36. regulator defective 1 Check burner for dirt and debris If found clean burner see Cleaning and Mainte nance page 24 2 Replace gas regulator Slight smoke or odor during initial opera tion 1 Residues from manu facturing processes 1 Problem will stop after a few hours of operation Heater produces a whistling noise when burner is lit 1 Turning control knob to HI position when burner is cold 2 Air in gas line 3 Air passageways on heater blocked 4 Dirty or partially clogged burner orifice 1 Turn control knob to LO position and let warm up for a minute 2 Operate burner until air is removed from line Have gas line checked by local natural gas company 3 Observe minimum installation clearances see Figure 4 page 10 4 Clean burner see Cleaning and Mainte nance page 24 or replace burner orifice 099569 TROUBLE SHOOTING Continued A WARNING If you smell gas e Shut off gas supply e Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department IMPORTANT Operating heater where impurities in air exist may create odors Cleaning supplies paint paint remover cigarette smoke cements and glues new carpet or
37. rranty Contact authorized dealers of this product If they can t supply original replacement part s either contact your nearest Parts Central see below or call DESA International s Technical Service Department at 1 800 323 5190 When calling DESA International have ready your name e your address e model number of your heater e how heater was malfunctioning e type of gas used propane or natural gas e purchase date Usually we will ask you to return the defective 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 below or call DESA International s Parts Department at 1 800 972 7879 for information When calling DESA International have ready e model number of your heater e the replacement part number These Parts Centrals are privately owned businesses They have agreed to support our customer s needs by providing original replacement parts and accessories Portable Heater Parts 342 N County Rd 400 East Valparaiso IN 46383 All States 219 462 7441 1 800 362 6951 FBD 601 Hope Street Bowling Green KY 42101 502 796 8406 1 800 654 8534 Master Service Center 1184 Wilson NW Walker MI 49504 616 791 4760 1 800 446 1446 Washer Equipment Co 1715 Main Street Kansas City MO 64108 KS MO AR 816 842 3911 East Coast Energy Products 833 Broadway W Long
38. space You will need no additional fresh air ventilation A WARNING gE You must provide additional ventilation air in a confined space 099569 FRESH 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 see options 1 and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 A WARNING Rework worksheet adding the space of the adjoining unconfined space The combined spaces must have enough fresh air to supply all appliances in both spaces Ventilation Grills into Adjoining Room Option 1 Ventilation Grills Option 2 Or Remove Door into Adjoining Room Option 3 Figure 2 Ventilation Air from Inside Building Into Adjoining Room Continued 099569 FRESH AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts You must provide two perma nent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spa
39. t model e see Troubleshooting pages 24 through 27 BURNER FLAME PATTERN Figure 22 shows a correct burner flame pattern Figure 23 shows an incorrect burner flame pattern The incorrect burner flame pattern shows yellow tipping of the flame It also shows the flame higher than 1 2 the glass panel height A WARNING If yellow tipping occurs your heater could produce increased levels of carbon monoxide If burner flame pattern shows yellow tipping follow instructions at bottom of this page NOTICE Do not mistake orange flames with yellow tipping Dirt or other fine particles enter the heater and burn causing brief patches of orange flame bal CORRECT FLAME PATTERN AT HIGH POSITION Figure 22 Correct Burner Flame Pattern Yellow Tipping INCORRECT FLAME PATTERN AT HIGH POSITION Figure 23 Incorrect Burner Flame Pattern If burner flame pattern is incorrect as shown in Figure 23 e turn heater off see To Turn Off Gas to Appliance page 19 thermostat models or page 22 non thermostat model e see Troubleshooting pages 24 through 27 1 2 GLASS HEIGHT 1 2 GLASS HEIGHT 099569 CLEANING AND MAINTENANCE TROUBLE SHOOTING Note All troubleshooting items are listed in order of operation A WARNING Turn off heater and let cool before cleaning A CAUTION You must keep control areas burner and circulating air passage ways o
40. tion 1 8 NPT ao N From 1 8 NPT ey Gas Meter Plug Tap J 4 W C to o 10 5 W C Pressure Tee Joint Sediment Trap Nipple El 3 Minimum Cap i Figure 13 Gas Connection An A G A design certified manual shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 30 A WARNING Test all gas piping and connections for leaks after installation or servicing Correct all leaks at once A WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1 2 PSIG 1 Disconnect heater and its individual manual shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pipe where manual shutoff valve was connected 3 Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter Continued 099569 CHECKING GAS CONNECTIONS Continued 4 Check all joints of gas supply piping system Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 5 Correct all leaks at once Test Pressures Equal To or Less Than 1 2 PSIG 1 Clos
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