Desa Tech CGR35PA Gas Heater User Manual
Contents
1. When ventilating to an adjoining open area 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 areas Follow the National Fuel Gas Code NFPA 54 ANSI 2223 1 It lists fresh air requirements for fuel burning appliances 7 K I LU Ventilation Grills Connecting Two Rooms Ventilation to Meet Unconfined Space Grills into Closet for Hot Water Heater Oo EE Em LIE 12 _SE Em RIlIE ER a Recommended LLLI Fresh Air Duct S into Crawl Space in Mn Furnace Area or in Closet with Water Heater Figure 16 Ventilation Air from Inside Building After providing ventilation between rooms check for draft hood spillage see Draft Hood Spillage Test page 18 If draft hood spillage still occurs provide more ventilation between rooms or provide permanent ventilation from outdoors See Providing Permanent Fresh Air Ventilation page 19 100793 OPERATING HEATER A WARNING Heater and venting system surfaces are very hot during operation Keep children and adults away from hot sur faces to avoid burns and clothing ignition Carefully super vise young children when they are in the same room as heater Heater will remain hot for a time after shut down Let surface cool before touching NOTICE If operating heater for the first time a slight odor2. VENTED PROPANE GAS HEATERS OWNER S OPERATION AND INSTALLATION MANUAL Models CGR65BPA CGR65PA CGR50BPA CGR50PA CGR35PA WARNING If the information in this manual WARNING Improper installation is not followed exactly a fire or explosion adjustment alteration service or maintenance can cause property damage personal injury or loss of FOR YOUR SAFETY life Refer to this manual for cor Do not store or use gasoline or other rect installation and operational may result causing property damage per sonal injury or loss of life flammable vapors and liquids in the procedures For assistance or vicinity of this or any other appliance ae additional information consult a WHAT TO DO IF YOU SMELL GAS qualified installer service agency e Do not try to light any appliance or the gas supplier 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 d r4 Q CANADIAN GAS ASSOCIATION o a Fee R APPROVED Installation and service must be per formed by a qualified installer service agency or the gas supplier
3. 100000 01 100000 01 100000 01 100000 01 100000 01 Cotter Pin 231939 231939 M11084 38 M11084 38 M11084 38 M11084 38 Screw 8 18 x 3 8 M11084 38 Screw 8 18 x 3 8 09921 1 01 099211 01 099211 01 099211 01 099211 01 Screw 10 16 x 2 1 4 100207 02 100207 02 100207 02 100207 02 100207 02 Control Valve 098265 01 098265 01 098265 01 098265 01 098265 01 Elbow 098936 02 098936 02 098936 02 098936 02 098936 02 Thermocouple Interrupter 100028 02 100028 02 100028 02 100028 02 100028 02 Pilot Tubing 100307 01 100307 01 100307 01 100307 01 100307 01 Thermocouple 171176 171176 530988 530988 100309 01 100309 01 100309 01 100309 01 100309 01 Orifice Holder 180252 180252 100706 01 100706 01 100385 01 100385 01 100384 01 Burner Assembly 100310 01 100310 01 100310 01 100310 01 100310 01 Pilot Mounting Bracket 100308 02 100308 02 100308 02 100308 02 100308 02 Pilot Includes 30 amp 31 M12461 25 M12461 25 M12461 25 M12461 25 M12461 25 Screw 10 32 x 1 4 098249 01 098249 01 098249 01 098249 01 098249 01 Nut M5 x 0 8 100481 01 100481 01 063015 Limit Switch Bracket M11084 26 M11084 26 EM Screw 10 16 x 3 8 231939 231939 231940 Limit Switch 171176 171176 171176 Burner Tube 530988 530988 530988 Control Bracket 530124 530124 100469 01 Orifice fo po ae oa oe on un nu np nwo Be Ba oo a a a a a 101342 03 101342 03 101342 02 101342 02 101342 01 Glass Panel Package Includes Retainer 100772 01 100772 01 EM EM
4. 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 CAUTION Make sure external regulator has been installed between propane supply and heater See guidelines under Con necting to Gas Supply page 11 Disconnect heater and its individual manual shutoff valve from gas supply pipe Pressures in excess of 1 2 PSIG will damage heater regulator Cap off open end of gas pipe where manual shutoff valve was connected Pressurize supply piping system by either using compressed air or opening propane supply tank valve Check all joints of gas supply piping system Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct all leaks at once Re connect heater and manual shutoff valve to gas supply Check re connected fittings for leaks Close manual shutoff valve see Figure 8 Pressurize supply piping system by either using compressed air or opening propane supply tank valve Check all joints from propane supply tank to manual shutoff valve Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct all leaks at once Open manual shutoff valve see Figure 8 Make sure control knob of heater is in the OFF position mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct
5. Radiant 530192 530192 100772 01 100772 01 Radiant 100772 01 Radiant 530192 530192 530192 Glass Spring 100468 01 100468 01 100468 01 100468 01 100468 01 Pilot Electrode 100465 01 100465 01 100465 01 100465 01 100465 01 Electrode Nut 100793 NOTES 100793 NOTES 100793 WARRANTY INFORMATION 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 COMFORT GLOW VENTED PROPANE GAS HEATERS LIMITED ONE YEAR WARRANTY This DESA product is warranted to the original purchaser to be free from defect in material and workmanship under normal use and maintenance for a period of one year from the date of installation whether or not actual use begins on that date It is the responsibility of the consumer owner to establish the warranty period You are required to furnish proof of installation date which may be a Bill of Sales or other payment record which verifies the original installation A new or remanufactured part to
6. Shipping Weight pounds 97 133 120 158 145 Flue Vent Size 4 dia 4 dia 5 dia Orifice Size 52 drill 9 0635 46 drill 081 2 4 mm 0945 When equipped with blower Note These heaters are certified for elevations of 0 4500 feet above sea level For elevations above 2000 feet de rate heater 496 for each 1000 feet above sea level When gas pressure is too low pilot will not stay lit burner will have delayed ignition heater will not produce specified heat propane gas supply may be low When gas quality is bad pilot will not stay lit burner will produce yellow flames and soot heater will backfire when lit You may feel your gas pressure is too low or gas quality is bad If so contact your local propane gas supplier 100793 ORDERING REPLACEMENT PARTS PARTS CENTRALS Note Use only original replacement parts This will protect your warranty cover age for parts replaced under warranty Parts Under Warranty Contact your nearest dealer or call DESA International s Technical Service De partment at 1 800 323 5190 When calling DESA International have ready your name your address model number of your heater how heater was malfunctioning type of gas used propane or natural gas purchase date Usually we will ask you to return the defective part to the factory Parts Not Under Warranty Contact your nearest dealer If they can t supply original replacement
7. allow the exclusion of incidental or consequential damages so the above limitation may not apply to you Oye os No representative dealer or other person is authorized to assume for DESA International any additional different or other liability in connection with the sale of this DESA product This warranty gives you specific legal rights and you may also have other rights which vary from state to state DESA INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 For more information about this warranty write 100793 01 REV D 11 94
8. and service in coldest part of room near an electrical outlet if heater has blower or if you are planning to add blower to heater See Accessories page 37 for blower CEILING 6 Minimum 53 Minimum Left Side Ten 6 Minimum from Back UT M 12 Minimum 48 Minimum from Front of Heater Figure 3 Heater Clearances COG 100793 INSTALLING HEATER Continued VENTING HEATER Note Venting chimney materials are not supplied with heater A WARNING A qualified service person must install the venting system for this heater If venting system is not properly installed and maintained the vent safety shut off system will pre vent the heater from running Follow all local codes A WARNING This heater has a vent safety shut off system This system shuts off the heater gas supply if you do not vent heater properly or the venting system is blocked Do not operate heater if not properly vented Do not tamper with the vent safety shut off system Carbon monoxide poisoning and death may result A WARNING When venting this heater follow the safety information listed below Never vent heater to another room or inside a build ing Only vent heater to the outdoors Do not vent heater exhaust to a chimney or flue serving another solid fuel burning or gas appliance We recommen
9. as NFPA 54 National Electrical Code ANSI NFPA 70 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 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 Piezo Ignition System This heater has a piezo ignitor This system requires no matches batteries or other sources to light heater Thermostatic Heat Control This heater has a thermostat sensing bulb and a control valve This results in the greatest heating comfort This can also result in lower gas bills A WARNING A qualified service person must install heater and venting system Have them inspect heater before use and at least annually Follow all local codes NOTICE This heater must be electrically grounded if equipped with blower Follow all local codes In the absence of local codes follow the National Electric Code ANSI NFPA 70 CHECK GAS TYPE Use only propane gas If your gas supply is not propane do not install heater Call dealer where you bought heater for proper type heater INSTALLATION ITEMS Before installing heater make sure you have all items below external regulator supplied by test gauge connection see installer see page 11 Figure 7
10. as heater Heater will remain hot for a time after shutdown Let surface cool before touching 11 Do not use heater as a cooking device 12 Do not alter heater or its controls Any change may create a safety hazard 13 Turn off heater and unplug if equipped with blower and let cool before servicing Unless you need gas supply for testing shut off manual shutoff valve before servicing Only a qualified service person should service and repair heater and venting system 14 Replace any safety screen or guard removed for servicing before running heater 15 Do not use heater if any part has been under water Immediately call a qualified service person to inspect the heater and to replace any part of the control system and any gas control which has been underwater 100793 PRODUCT Blower Switch IDENTIFICATION A cua wi BF m 7 utton Burner Radiants Lower Front Access Panel Figure 1 Vented Propane Gas Heater Radiant Front System Draft Hood f Outlet for BED e Venting Soe Control Valve Blower on models equipped with blower Figure 2 Vented Propane Gas Heater Rear View 100793 LOCAL CODES UNPACKING PRODUCT FEATURES INSTALLING HEATER Install and use heater with care Follow all local codes In the absence of local codes use the latest edition of the following National Fuel Gas Code ANSI Z223 1 also known
11. heater may not be operating or venting properly Get fresh air at once Have heater or heater venting system 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 Propane Gas Propane gas is odorless An odor making agent is added to propane gas The odor helps you detect a propane gas leak However the odor added to propane gas can fade Propane gas may be present even though no odor exists Make certain you read and understand all Warnings Keep this manual for reference It is your guide to safe and proper operation of this heater 1 A qualified service person must install heater and venting system 2 Use only propane gas Do not convert heater to use different fuel type 3 Do not place propane supply tank s inside any structure Locate propane supply tank s outdoors 4 If you smell gas Shut off gas supply Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions f you cannot reach your gas supplier call the fire department 5 This heater must have fresh air for proper operation If not poor fuel combustion and improper venting of flue gases will result Carbon monoxide poisoning from backed up flue gases could
12. nance page 26 or replace burner orifice see Changing Burner Orifice page 34 see Changing Burner Orifice page 34 gas company 100793 TROUBLE SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE REMEDY Delayed ignition of 1 Manifold pressure is Contact local propane burner 2 too low Burner orifice is clogged gas company Clean burner see Cleaning and Mainte nance page 26 or replace burner orifice see Changing Burner Orifice page 34 Burner backfiring during combustion Burner orifice is clogged or damaged Burner damaged Clean burner see Cleaning and Mainte nance page 26 or replace burner orifice see Changing Burner Orifice page 34 Replace burner 3 Gas regulator defective Replace control valve 4 Delayed ignition See above Yellow flame during 1 Not enough air Check burner for dirt burner combustion Gas regulator defective and debris If found clean burner see Cleaning and Mainte nance page 26 Replace control valve Flame lifting during combustion Burner orifice is clogged or damaged Manifold pressure too high defective gas regulator Clean burner see Cleaning and Mainte nance page 26 or replace burner orifice see Changing Burner Orifice page 34 Replace control valve see Removing Control Valve and Burner Tube page 32 Slight smoke o
13. occur The State of California lists carbon monoxide as a reproductive toxin under Proposition 65 Read the instructions under Air for Combustion and Ventilation pages 17 through 20 for complete information 6 Never install the heater in a mobile home or a recreational vehicle where curtains furniture clothing or other flammable objects are less than 48 inches from the front 53 inches from top or 12 inches from right side and 6 inches from left side and back of heater directly on carpeting tile or other combustible materials other than wood flooring Place heater on metal or wood panel extending the full width and depth of heater s a fireplace insert in high traffic areas in windy or drafty areas Continued 100793 SAFETY INFORMATION Continued A WARNINGS Continued 7 Provide the following minimum heater clearances from combustibles as viewed from the front of heater Front 48 inches Back 6 inches Top 53 inches Right Side 12 inches Left Side 6 inches 8 Do not run heater where flammable liquids or vapors are used or stored under dusty conditions 9 Never place clothing or any flammable objects on the heater or venting system 10 Heater and venting system surfaces are very hot during operation Keep children and adults away from hot surfaces to avoid burns or clothing ignition Carefully supervise young children when they are in the same room
14. or frayed ignitor cable Loose ignitor cable Bad piezo ignitor oo Replace ignitor Reconnect ignitor cable Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Tighten nut holding piezo ignitor to heater cabinet Nut is located inside heater cabinet at top Replace ignitor cable Reconnect ignitor cable Replace piezo ignitor When ignitor button 1 is pressed there is spark at pilot but no ignition 25 Gas supply turned off 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 Depleted gas supply Pilot is clogged Gas regulator setting is not correct Turn on gas supply or open manual shutoff valve Turn control knob to PILOT position Press in control knob while in PILOT position Continue holding down control knob Repeat igniting operation until air is removed Contact local propane gas company Clean pilot see Clean ing and Maintenance page 26 or replace pilot assembly Replace control valve Continued 27 100793 TROUBLE SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE REMEDY Pilot lights but flame 1 Manual shutoff valve 1 Fully open manual goes out when not fully open shut off valve control knob is 2 Control knob not fully 2 Pres
15. part s either contact your nearest Parts Central below or call DESA International s Parts Department at 1 800 972 7879 for information When calling DESA International have ready model number of your heater 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 For certain parts some Parts Centrals may refer you to a dealer in your area When calling a Parts Central ask for the Parts Department Howard Industries 1514 South Maple Ave Los Angeles CA 90015 213 747 5121 Victor Manufacturing 42 Rumsey Road E Hartford CT 06108 NY NJ DE PA MD 203 289 4223 Controlled Engineering 299 Roosevelt Road Glen Ellyn IL 60137 708 469 7300 Portable Heater Parts 342 N Country Rd 400E 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 American Air Dist 537 W 62nd Street Shreveport LA 71108 318 861 0634 Master Service Center 1184 Wilson Grand Rapids 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 Controls Inc 6820 Glenwood Ave Raleigh NC 27612 NC SC VA MD 919 787 2242 1 800 334 5886 Taratin Tank Co P O Box 6129 Freehold NJ 07728 908 780 9340 East Coast Energy 833 Broadway W Long B
16. 110 16 x 3 8 100053 01BS Hearth Assembly 100204 01 098304 02 M11084 26 includes items 5 amp 7 Top Panel Screw 6 20 x 3 8 Screw 4110 16 x 3 8 Screw 4110 16 x 3 8 100205 01BS Glass Guard 100203 01 099123 01 Cabinet Assembly Thermobulb Clip 100101 01BS Cabinet Back 099997 01 PARTS AVAILABLE NOT SHOWN 099988 02 099987 02 100154 02 099988 02 099987 02 100154 02 099988 02 099987 02 100154 02 Switch Plug Lighting Instructions Decal Control Position Decal Warning Decal 100793 ILLUSTRATED PARTS LIST Burner Assembly for Radiant Models 100793 PARTS LIST Burner Assembly for Radiant Models This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Ordering Replacement Parts on page 36 of this manual PART NUMBER FOR CGR65BPA CGR65PA CGR50BPA CGR50PA CGR35PA DESCRIPTION 100729 03 100729 03 100729 02 100729 02 100729 01 Combustion Chamber 098324 02 098324 02 098324 02 098324 02 098324 02 Control Knob 097159 01 097159 01 097159 01 097159 01 097159 01 Piezo Ignitor 098271 05 098271 05 098271 05 098271 05 098271 05 Ignitor Cable 099974 03 099974 03 099974 02 099974 02 099974 01 Control Rod 063017 063017 M11084 26 M11084 26 M11084 26 Screw 10 16 x 3 8 099986 02 099986 02 099986 01 099986 01 099986 01 Wire Assembly
17. 3 contact a qualified service person BURNER FLAME PATTERN Note To view burner flame look through front glass of heater Figure 21 page 25 shows a correct burner flame pattern Figure 22 page 25 shows two incorrect burner flame patterns The two incorrect flame patterns show ragged yellow flames and flames lifting off of burner A WARNING If ragged yellow flame occurs your heater could produce increased levels of carbon monoxide If burner flame is incorrect follow instructions on page 25 NOTICE Do not mistake orange flames with yellow flame Dirt or other fine dust particles enter the heater and burn causing brief patches of orange flame 100793 INSPECTING PILOT AND BURNER FLAME Continued Sharp Blue Flame Figure 21 Correct Burner Flame Pattern Ragged Yellow Flame AAAAAAAAAAAAAAAAAC Ul Ml Ml MEME didt IPS MTS a Flame Lifting Off of Burner Figure 22 Incorrect Burner Flame Patterns If burner flame pattern is incorrect as shown in Figure 22 turn heater off see To Turn Off Gas to Appliance page 23 see Troubleshooting pages 27 through 31 100793 CLEANING AND MAINTENANCE A WARNING Turn off heater and let cool before cleaning or servicing A WARNING Keep heater clear and free from combustible materials gasoline and other flammable vapors and liquids A CAUTION You must ke
18. ALVE GA5010 For all models Manual shutoff valve with 1 8 NPT tap 100793 al r When ordering parts follow the page 36 of this manu ains replaceable parts used in your heate Pi E e 2 Q NX i NAR ut A Ni NON s ny JH N 2 4 e EA d RQR 0977 4 BI l Y N N X NS ctions listed under Ordering Replacement Parts on PART NUMBER FOR Blower Assembly ILLUSTRATED iic PARTS LIST ILLUSTRATED PARTS LIST Cabinet Assembly for Radiant Models KEY NO PART NUMBER FOR CGR65BPA CGR65PA CGR50BPA CGR50PA CGR35PA 100202 03 098304 01 100053 03BS 100204 03 098304 02 M11084 26 100205 03BS 100203 03 099123 01 100101 03BS 099988 02 099987 02 100154 02 100202 03 098304 01 100053 03BS 100204 03 098304 02 M11084 26 100205 03BS 100203 03 099123 01 100101 03BS 099997 01 099988 02 099987 02 100154 02 100202 02 098304 01 100053 02BS 100204 02 098304 02 M11084 26 100205 02BS 100203 02 099123 01 100101 02BS 100202 02 098304 01 100053 02BS 100204 02 098304 02 M11084 26 100205 02BS 100203 02 099123 01 100101 02BS 099997 01 100202 01 098304 01 This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Ordering Replacement Parts on page 36 of this manual ary Lower Front Panel Screw 1
19. Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness and or nausea If you have these signs the heater may not be operating or venting properly Get fresh air at once Have heater or heater venting system serviced Some people are more affected by carbon monoxide than others These include pregnant women persons with heart and lung disease and anemia those under the influence of alcohol and those at high altitudes Continued 100793 AIR FOR COMBUSTION AND VENTILATION Continued In the absence of local codes use the following excerpts from the National Fuel Gas Code NFPA 54 ANSI 2223 1 Air for Combustion and Ventilation DETERMINING FRESH AIR FLOW FOR HEATER LOCATION Example 1 Locating Heater in Unconfined Open Area NOTICE An unconfined area has a minimum air volume of 50 cubic feet for each 1000 BTU Hr input rating of all appliances in the area cubic feet equals length x width x height of area Include adjoining rooms only if there are no doors between the rooms or if you add ventila tion grills between the rooms see Ventilating Confined Area page 20 In an open area the air that leaks around doors and windows may provide enough fresh air for combustion and ventilation Draft Hood Spillage Test Follow the steps below to see if enough fresh air is available 1 Close all windows and doors 2 If you have a fireplace start a fire Build f
20. Remove lower front access panel on heater Disconnect burner tube from orifice holder see Figure 25 Remove orifice holder from burner see Figure 25 Use socket or open end wrench to remove the old orifice from the orifice holder Clean and replace orifice or replace with new orifice Turn on gas to heater and check for gas leaks Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once Replace lower front access panel BLOWER WIRING DIAGRAM For Models With Blower Assembly Burner Orifice Burner Tube amp X P di Orifice Holder Figure 25 Orifice Location 35 000 BTU Hr Burner Shown Figure 26 Orifice Fan Switch Off On Auto Off Black Blower 110 115 V A C Green 100793 TECHNICAL SERVICE SPECIFICATIONS SERVICE HINTS You may have further questions about installation operation or troubleshooting If so contact DESA International s Technical Service Department at 1 800 323 5190 35 000 BTU Hr 50 000 BTU Hr 65 000 BTU Hr Model Model Model BTU 35 000 50 000 65 000 Type Gas Propane Only Propane Only Propane Only Ignition Piezo Piezo Piezo Pressure Regulator Setting 10 5 W C 10 5 W C 10 5 W C Inlet Gas Pressure Maximum 14 W C 14 W C 14 W C Minimum 11 W C 11 W C 11 W C Dimensions Inches Heater H x W x D 25x27 4x16 27x32 x16 31 x 37 4x 16
21. Save this manual for future reference CONTENTS SECTION PAGE Safety Information eerie e eerte tre eiie hes 3 Product Identification sse 5 Eocal Codes eod oe oer dtt Ne e tete bee ole deret 6 Wnpackin gs ee ettet e rt PE ee e i ede eie dr 6 Product Feat res imet ee etre 6 Installing Heater 3 21 enne tte 6 Check Gas Type ue epe etes 6 Installation Items 2 3 ueteres 6 Locating Heater aet oie eet e 7 Venting Heater gosse ees 8 Connecting to Gas Supply serere 11 Checking Gas Connections eeeeeseeeeereneene 13 Installing Radiants terr ttt 14 Installing Glass Panel eee 15 Air For Combustion and Ventilation sss 17 Determining Fresh Air Flow for Heater Location Example 1 Locating Heater in Unconfined Open Area 18 Draft Hood Spillage Test sess 18 Providing Permanent Fresh Air Ventilation 19 Example 2 Locating Heater in Confined Closed Area 20 Ventilating Confined Area esses 20 Operating Heater nette tre teh eite E 21 For Your Safety Read Before Lighting 21 Lighting Instructions esses eene 21 Manual Lighting Procedure eee 23 Blower Operation For Models with Blower 23 To Turn Off Gas To Appliance eee 23 Inspecting P
22. all leaks at once Light heater see Operating Heater pages 21 through 23 Check the rest of the internal joints for leaks Turn off heater see To Turn Off Gas to Appliance page 23 On Position Off Position Continued Figure 8 Manual Shutoff Valve 100793 INSTALLING HEATER Continued INSTALLING RADIANTS A WARNING Carefully handle the glass panel Glass edges are rounded and buffed to prevent cuts however chipped or broken sections of glass can present sharp edges These sharp edges can cut skin 1 Remove glass guard from across opening at front of heater see Figure 9 2 Place radiants into combustion chamber through opening at front of heater Front of radiant sits on front radiant support see Figure 10 Back of radiant rests on back radiant support see Figures 9 and 10 Note Radiants should never come in contact with burner flame Contact with flame may cause carbon or soot deposits on radiants Combustion Chamber Back Radiant Support Lower Front Access Area ee Lower Front Access Panel Glass Retaining Channel Figure 9 Location of Radiants Back Radiant Support Radiant Burner il GT Figure 10 Position of Radiant Front Radiant Support 100793 INSTALLING HEATER Continued INSTALLING GLASS PANEL For Radiant Models Only 1 Locate the glass panel package inside the back of the h
23. as odor during 1 Foreign matter be Take apart gas tubing combustion tween control valve and remove foreign and burner matter 2 Gas leak See Warn Find and correct all ing statement at leaks see Checking Gas top of page Connections page 13 3 Foreign fumes in area Ventilate area around of heater being drawn through burner com bustion heater to remove any foreign fumes SERVICE PROCEDURES Removing Control Valve and Burner Tube 1 Shut off gas supply to heater 2 Remove lower front access panel on heater 3 Disconnect burner tube from orifice holder see Figure 23 4 Remove pilot gas line from control valve see Figure 23 5 Disconnect wire connec tors from thermocouple interrupter see Figure 23 6 Remove thermocouple and thermocouple inter rupter from control valve 7 Remove cotter pin from control valve This releases the control rod from valve see Figure 23 8 Remove the two mounting screws from control valve mounting bracket see Figure 23 9 Remove assembly from the rear of heater 10 To reinstall reverse above steps Turn on gas to heater and check for gas leaks Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once Replace lower front access panel 1 A WARNING Turn off and unplug heater and let cool before servicing Unless you need gas supply for testing shut off
24. d or changed by any distributor dealer or other person whomsoever DESA WILL NOT BE RESPONSIBLE FOR 1 Normal maintenance as outlined in the owner s operation and installation manual including cleaning of component parts such as orifices and burners 2 Failure to start and or operate due to voltage or gas condition blown fuses open circuit breakers loose or disconnected wires low gas pressure or other damages due to inadequacy or interruption of electrical service or gas supply Damage or repairs required as a consequence of faulty or incorrect installation not in conformance with DESA instructions Damage as a result of floods winds lightning accidents corrosive atmosphere or other conditions beyond the control of DESA Parts or accessories not supplied by DESA Costs incurred in gaining access to the heater Damage or repairs needed as a consequence of any misapplication abuse unreasonable use unauthorized alteration improper servicing improper operation or failure to provide reasonable and necessary maintenance 8 Freight charges incurred from parts replacement 9 DESA product installed outside the Continental U S A and Alaska 10 DESA products whose serial number has been altered defaced or removed 11 Fuel or electricity costs or increases in such costs from any reason whatsoever 12 Any special indirect or consequential property economic or commercial damage of any nature whatsoever Some states do not
25. d you use flues classified as prefabri cated or masonry all fuel chimney or type B vent See Vent Types page 10 If using old vent check vent for soot creosote and loose particles If vent is damaged repair or replace it before using heater Extend the vertical section of vent pipe at least three feet above roof penetration Extend the vertical section of vent pipe at least two feet above the highest point of any roof within ten feet The horizontal run of vent pipe should rise at least 1 4 inch for each foot of run Support the vent pipe at least every five feet along its length Do not use combustible materials to support vent pipe Never extend vent pipe horizontally through outside wall and terminate You must connect a vertical run of vent pipe to the horizontal run The vertical run must be at least 25 longer than the horizontal run Install vent or chimney cap that is approved for use with vented gas room heaters Do not use vent pipe smaller in diameter than that of the heater draft hood outlet Do not use dampers in the vent pipes Vertical height of vent must be greater than five feet above vent connection at draft hood 100793 INSTALLING HEATER Continued VENTING HEATER continued A WARNING Do not vent heater in any of the following ways see Figure 4 Heater must be vented to the out The vertical section of vent pipe must doors Never vent heater to another e
26. eater CAUTION Before installing glass panels inspect the edges If you notice any chips or cracks do not install If the surface on either side is deeply scratched do not install If these conditions exist call DESA International s Technical Ser vice Department at 1 800 323 5190 for replacement glass panels CAUTION Do not operate heater without glass panels installed Operating heater without glass panels will damage front of heater due to excess temperatures A CAUTION Glass panels may have sharp edges Handle with care 2 Remove lower front access panel of heater by removing two screws at upper corners of panel The lower front access panel covers the lower front access area see Figure 9 page 14 3 Remove two screws on glass guard Remove glass guard see Figure 11 4 Carefully insert one glass panel up through lower front access area see Figure 11 5 Carefully slip glass panel behind hearth assembly see Figure 11 Do Glass Hearth Assembly Lower Front Access Area Figure 11 Inserting Glass Panels Continued 15 100793 INSTALLING HEATER Continued 6 Insert top edge of glass panel into the upper glass retaining channel see Figure 12 A CAUTION due to excess temperatures Make sure you insert top edge of glass panels into the upper glass retaining channel Do not install glass panels with top
27. edge of glass in front of the upper glass retaining channel Glass panels will not automatically go into the channel You must guide the glass panels into it Incorrect installation will damage front of heater Upper Glass Retaining Channel Lower Glass Retaining Channel Glass Panel l f wee Lower Front Access Area Figure 12 Inserting Top Upper Glass Retaining Channel 7 Lower glass into lower glass retaining channel Slide glass panel all the way to the left side Note If you have chipped or cracked a glass panel during installation do not use Contact DESA International s Technical Service Department at 1 800 323 5190 for a replacement glass panel 8 Repeat steps 4 through 7 for all glass panels Edge of Glass Panel into Glass Panel Lower Glass Retaining Channel a Figure 13 Inserting Glass into Lower Retaining Channel 9 Reinstall glass guard Reinstall lower front access panel of heater 100793 AIR FOR A WARNING COMBUSTION This heater must have fresh air for proper operation If AND not poor fuel combustion and improper venting of flue gases will result Carbon monoxide poisoning from VENTI LATION backed up flue gases could occur 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 en
28. ems 100793 INSTALLING HEATER Continued CONNECTING TO GAS SUPPLY A WARNING A qualified service person must connect heater to gas supply Follow all local codes A CAUTION Never connect heater directly to the propane supply This heater requires an external regulator not sup plied Install the external regulator between the heater and propane supply The installer must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pressure heater regulator damage could occur Install external regulator with the vent pointing down as shown in Figure 6 Pointing the vent down protects it from freezing rain or sleet Vy A hy MY External Regulator GY Ps Vent Pointing Down H BULK PROPANE TANK ORO VEIT C 4 o oO S T HT H Figure 6 External Regulator with Vent Pointing Down A CAUTION Use only new black iron or steel pipe Internally tinned copper tubing may be used in certain areas Check your local codes Use pipe that is 1 2 in diameter or greater to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur The gas supply line to your heater must be 1 2 inch in diameter or larger If the supply line branches to serve two or
29. ent trap is not installed or is installed wrong heater may not run properly IMPORTANT Use two pipe wrenches when connecting gas piping to gas control valve of heater This will prevent turning or damaging control valve Acceptable construction of inlet gas line T From External Regulator 11 W C Min to Manual 14 W C Max Shutoff Valve Preferred construction of inlet gas Reducer m Bushing to 1 8 NPT Test pos Gauge 1 8 NPT im ion Plug T Connection Ug rap m Tee Joint Regulator Tee Joint 11 W C A 1 W C Sediment No Min to Trap pp 14 W C L Cap Max Figure 7 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 37 For purposes of input adjustment 100793 INSTALLING HEATER Continued CHECKING GAS CONNECTIONS Pressure Testing Gas Supply Piping System Test Pressures In Excess of 1 2 PSIG 1 2 3 Test Pressures Equal To or Less Than 1 2 PSIG 1 2 3 4 Pressure Testing Heater Gas Connections 1 2 Open propane supply tank valve 3 4 Check all joints from manual shutoff valve to control valve on heater Apply ON A WARNING Test all gas piping and connections for leaks after install ing or servicing
30. ep control areas burner and circulating air passageways of heater clean Inspect these areas of heater before each use Have heater and venting system inspected yearly by a qualified service person Heater may need more frequent cleaning due to excessive lint from carpeting bedding material etc CABINET Air Passageways 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 COMBUSTION CHAMBER AND BURNER Clean the combustion chamber and burner if you have run the heater with a high yellow flame Incomplete combustion from lack of air causes the yellow flame This will deposit soot inside the combustion chamber and on the burner To clean combustion chamber and burner you must remove the burner from heater See Service Procedures page 33 to remove burner After removing burner blow inside of combustion chamber clean with compressed air Clean burner with a steel wire brush Blow soot from burner with compressed air PILOT Use a vacuum cleaner compressed air or small soft bristled brush to clean BURNER ORIFICE Use a vacuum cleaner compressed air or small soft bristled brush to clean You can also use a tooth pick to clean orifice Do not enlarge or damage orifice hole PILOT AND BURNER FLAME Check the pilot and burner flame monthly Make sure pilot and burner flame is burning correctly See Inspecting Pilot a
31. ergy 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 it is not good to make it too airtight Your home needs to breath If your home is too airtight fresh air has little chance of entering in This could be dangerous if you have fuel burning appliances These appliances need fresh outside air for proper combustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate This heater is a fuel burning appliance It uses air from inside the house for combustion It also uses this air as a draft for venting This draft air helps move combustion gases through the vent pipe to the outdoors If your house is too airtight there is not enough fresh air for these items to use Fresh air may draw back into the house through venting flues and chimneys This will keep fuel burning appliances from venting properly This may cause them to release poison ous carbon monoxide gas into your home It is very important to provide enough fresh air to run all fuel burning appliances A DANGER Carbon monoxide poisoning may lead to death Carbon monoxide is a colorless odorless gas
32. f heater is equipped with a blower turn off all electric power to the heater Make sure manual shutoff valve is fully open spe Locate control knob on top of heater Fully depress control knob in any position other than PILOT to shut off burner and pilot DEPRESS FOR OFF Ignitor Button APPUYER POUR ga Control Knob LOW HIGH B eZ u Continued Figure 17 Control Knob and Ignitor Button 100793 OPERATING HEATER Continued 10 11 12 13 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 21 If you don t smell gas go to the next step Remove lower front access panel on heater Turn control knob clockwise to the PILOT position Fully depress control knob for five seconds Note You may be running this heater for the first time after hooking up to gas supply If so you may need to depress control knob in for 15 seconds This allows air to bleed from the gas system With control knob depressed push down and release ignitor button This will light pilot The pilot is attached to the front of burner You can see pilot with front access panel of heater removed see Figure 17 page 21 If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 27 through 31 Also contact a qualified service person or gas suppl
33. ier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 23 Keep control knob depressed for 30 seconds after lighting pilot After 30 seconds release control knob If control knob does not pop up when released contact a qualified service person or gas supplier for repairs Shut off gas immediately Note If pilot goes out repeat steps 4 through 9 Replace lower front access panel on heater If heater is equipped with a blower turn on all electrical power to the heater Turn control knob counterclockwise 5 to desired setting If equipped turn blower control to the AUTO or ON position if desired A CAUTION Do not try to adjust heating levels by using the manual shutoff valve Figure 18 Viewing Pilot 100793 OPERATING HEATER Continued IEEE MANUAL LIGHTING PROCEDURE E Remove lower front access panel on heater Locate pilot Pilot is attached to the front of burner 1 2 3 Follow steps 1 through 7 under Lighting Instructions pages 21 and 22 4 With control knob depressed strike match Hold match to pilot until pilot lights 5 Follow steps 9 through 13 under Lighting Instructions page 22 RE 2 0 68 orano NIIS For Models with Blower A WARNING This heater has a three prong grounded electrical plug This plug helps protect you against electrical shock Only connect plug to a properl
34. ilot and Burner Flame eee 24 Pilot Flame Pattern ite eee nh 24 Burner Flame Pattern cerne 24 Cleaning and Maintenance eeeeeeeeen rene 26 Troubleshooting 1e eel ee al ee ea 27 Service Procedures eee DERE Hr eee es 32 Removing Control Valve and Burner Tube 32 Removing B rner eee eee id tease fete 33 Changing Burner Orifice sess 34 Blower Wiring Diagram esee enne 34 Technical SetVice cgoro ca Miele ete ete tet e ele el 35 Specific tionS crre et e Dot ee teretes EAE tg 35 Service Hints tee erc tee tto tette ete ee 35 Ordering Replacement Parts esee 36 Parts Central npe eee etudes 36 ACCESSO ES 2er pere Le pene e tie der pe ie se esee este 37 Mlustrated Parts Lists i ee i Ett HR e Pct teet 38 41 Warranty Information eese neret nennen nennen Back Cover 100793 SAFETY A WARNINGS INFORM ATION 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 monoxide poisoning resemble the flu with headaches dizziness or nausea If you have these signs the
35. ire until flames are burning strongly 3 Turn on all exhaust fans These include exhaust fans for kitchen bathroom water heaters gas or electric etc 4 Turn on all vented gas appliances These include any room heaters water heaters clothes dryer etc 5 Wait ten minutes for drafts to regulate 6 Check for draft hood spillage at each vented gas appliance Do this by holding a lit match two inches from the draft opening see Figure 14 If match flame pulls toward the draft hood there is no spillage If match flame blows away from the draft hood there is spillage This is a hazardous condition See Draft Hood Spillage page 19 Vent Pipe Vent Pipe Draft Hood Match Heater Typical Water Heater Match N Draft Hood Opening Figure 14 Checking for Draft Spillage No Draft Hood Spillage This shows there is enough fresh air in area for appliances Turn off all exhaust fans and appliances if desired 100793 AIR FOR COMBUSTION AND VENTILATION Continued Draft Hood Spillage This is a hazardous situation Draft hood spillage re leases poisonous carbon monoxide gas into your home DANGER Carbon monoxide poisoning may lead to death If draft hood spillage occurs check for blocked flue connectors vent pipes and chimneys If you find blockage remove Test again for spillage If spillage still occurs or there was no blockage you need more fresh outside ai
36. l the BTU Hr input rating of all appliances Follow the National Fuel Gas Code NFPA 54 ANSI 2223 1 It lists fresh air requirements for fuel burning appliances IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermostat controlled power vent Chimney or Gas Ventilated Attic Outlet f Air To Attic To Crawl Space Inlet J Ai r l TT TTT Ventilated melee Crawl Space Continued Figure 15 Ventilation Air from Outdoors 100793 AIR FOR COMBUSTION AND VENTILATION Continued Example 2 Locating Heater in Confined Closed Area NOTICE A confined area has an air volume of less than 50 cubic feet for each 1000 BTU Hr input rating of all appliances in the area cubic feet equals length x width x height of area Include adjoining rooms only if there are no doors between the rooms If you install this heater in a confined area you must provide additional fresh air Ventilating Confined Area This fresh air would come from an adjoining open area or outdoors A WARNING The adjoining open area must have enough fresh outside air ventilation to supply any appliance in that area plus the confined area Follow instructions under Example 1 Locating Heater in Unconfined Open Area page 18 to make sure fresh air ventilation is adequate
37. lled pipe Clearances to combustible construction must be in accordance with the listing of the particular type B vent Type B vents are cur rently listed as B 1 B 1 1 2 and B 2 The illustrations below show both vent types The illustration shows typical construction of each type of venting system Minimum clearances and lengths are added to the illustrations Terminate at least 5 above draft hood If vent extends over 5 above roof support with guy wires or braces Seal Around Collar and Flashing s ks VU Vent Cap Must Be At Least 2 Feet Above Highest Point Within 10 Feet Lock AME oft Joints A Position S bport L Y Firestop rn Support If EX aterals i 1 Necessary gt A Lock sone Maintain Listed Clearance of Vent 53 5 6 Min Min Min nre Vertical Vent Y HH SST Lock Joints Heater Heater Vent Connector VI 7 Y V Prefabricated or Masonry Type B Vent All Fuel Chimney Figure 5 Typical Construction of Venting Syst
38. manual shutoff valve before servicing Only a qualified service person should service and repair heater and venting system Control Rod Cotter Pin Control Valve Control Valve Bracket Screw Orifice Holder Thermocouple eS Interrupter Thermocouple Pilot Gas Line Wire Connector Figure 23 Removing Control Valve and Burner Tube 100793 1 2 SERVICE PROCEDURES Continued Removing Burner Shut off gas supply to heater Remove lower front access panel on heater Disconnect burner tube from orifice holder see Figure 24 Remove orifice holder from burner see Figure 24 Remove pilot burner bracket nuts and remove pilot assembly see Figure 24 Move burner to the right for clearance Rotate burner 90 and remove burner through lower front access opening To reinstall reverse above steps Turn on gas to heater and check for gas leaks Apply a mixture of liquid soap and water to all joints Bubbles form ing show a leak Correct all leaks at once Replace lower front access panel Burner Burner Tube Pilot Burner Pilot Burner Assembly Bracket Nut Orifice Holder Figure 24 Removing Burner Tube Orifice Holder and Pilot Burner Assembly 85 000 BTU Hr Burner Shown Continued 100793 1 2 SERVICE PROCEDURES Continued Changing Burner Orifice Shut off gas supply to heater
39. more heaters the line from the branch back to the external regulator must be doubled or tripled etc in size depending upon the number of heaters Example for 1 2 inch diameter supply line If the supply line branches to serve two heaters the line diameter from the branch back to the external regulator must be at least 1 inch If three heaters are served the line diameter from the branch back to the external regulator must be at least 1 1 2 inches Note If gas supply line total length exceeds forty feet use a larger diameter pipe Use pipe that is the next size larger than the heater control valve fitting Continued 100793 INSTALLING HEATER Continued Installation must include a manual shutoff valve ground joint union plugged 1 8 NPT tap and a sediment trap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 7 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 CAUTION Use pipe joint sealant that is resistant to liquid petroleum LP gas Install sediment trap in supply line as shown in Figure 7 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 sedim
40. nd Burner Flame page 24 VENTING SYSTEM Check the venting system at least once a year Make sure joints are secure and vent pipe is in good condition Do not obstruct combustion and ventilation air entering the rear of heater BLOWER MOTOR For Models with Blower The motor on a new blower is properly lubricated at the factory The first heating season the motor will need no additional care At the beginning of each season afterwards place a few drops of SAE 20 motor oil in the lubrication holes of motor Locate the lubrication holes at front and rear of motor on motor casing 100793 TROUBLE SHOOTING Note Alltroubleshooting items are listed in order of operation A WARNING system Turn off and unplug heater and let cool before servicing Unless you need gas supply for testing shut off manual shutoff valve before servicing Only a qualified service person should service and repair heater and venting ACAUTION Never use a wire needle or similar object to clean pilot This can damage pilot OBSERVED POSSIBLE PROBLEM CAUSE REMEDY When ignitor button 1 Incorrect spark gap 1 Adjust spark gap to 1 16 is pressed thereisno 2 Ignitor electrode posi 2 Replace ignitor spark at pilot oo tioned wrong Ignitor electrode broken Ignitor electrode not con nected to ignitor cable Ignitor cable pinched or wet Piezo ignitor nut is loose Broken
41. page 12 piping check local codes sediment trap sealant resistant to propane gas tee joint e manual shutoff valve pipe wrench ground joint union venting materials 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 37 100793 INSTALLING HEATER Continued LOCATING HEATER A WARNING Maintain the minimum clearances shown in Figure 3 below If you can provide greater clearances A WARNING Never install the heater in a mobile home or a recreational vehicle where curtains furniture clothing or other flam mable objects are less than 48 inches from the front 53 inches from the top 12 inches from the right side and 6 inches from the left side and back of heater directly on carpeting tile or other combustible materials other than wood flooring Place heater on metal or wood panel extending the full width and depth of heater as a fireplace insert 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 For convenience and efficiency install heater where there is easy access for operation inspection
42. r in the house You must provide additional fresh air ventilation Follow the steps below at once A Open a window near the appliance s at least two inches Test again for spillage If spillage does not stop open window more and retest If spillage stops keep window open while running appliance s Supply fresh outside air by a permanent method as soon as possible If spillage still occurs leave window open and go to next step B If you have a fireplace open a window or door near it at least two inches Test again for spillage If spillage does not stop open window or door more and retest If spillage stops keep window or door open while using fire place Supply fresh outside air by a permanent method as soon as possible If spillage still occurs leave window or door open and go to next step C If you have kitchen and bathroom exhaust fans turn them off Test again for spillage If spillage stops do not use exhaust fans Turn off circuit breakers for fans if possible Permanently supply fresh outside air as soon as possible Providing Permanent Fresh Air Ventilation If draft hood spillage occurs you must permanently supply fresh outside air to the inside of your house Provide extra fresh air by using ventilation grills or ducts Connect these items directly to the outdoors or spaces open to the outdoors These spaces include attics and crawl spaces If you install this heater in an area with other gas appliances you must tota
43. r odor during initial opera tion Residues from manu facturing processes Problem will stop after a few hours of operation Continued 100793 TROUBLE SHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner fails to respond to thermo Stat 1 Pilot flame not lit 2 Pilot flame not prop erly heating end of thermocouple 3 Pilot burner orifice clogged or damaged 4 Control valve defec tive 5 Temperature at ther mostat bulb satisfied 1 Light pilot burner see Lighting Instructions page 21 2 Pilot flame needs adjusting Contact a qualified service person 3 Clean pilot burner see Cleaning and Mainte nance page 26 4 Replace control valve Heater produces a whistling noise when burner is lit 1 Air in gas line 2 Air passageways on heater blocked 3 Dirty or partially clogged burner orifice 1 Operate burner until air is removed from line Have gas line checked by local propane gas company 2 Observe minimum installation clearances see Figure 3 page 7 3 Clean burner see Cleaning and Mainte nance page 26 or replace burner orifice see Changing Burner Orifice page 34 Heater produces a clicking ticking noise just after burner is lit or shut off 1 Metal expanding while heating or contracting while cooling 1 This is common with most heaters If noise is excessive contact qualified
44. ranch NJ 07764 908 870 8809 1 800 755 8809 ATP Services 990 Avenue of Americas New York NY 10018 212 967 6255 Dayton Hardware P O Box 275 North Dayton Station Dayton OH 45404 All States 513 258 3721 OH only 1 800 762 3426 Central Air Supply 424 North Rockwell Oklahoma City OK 73127 405 495 0014 Warmer Image 208 Carter Drive Unit 21 West Chester PA 19382 215 696 2670 1 800 368 0803 LaPorte s Parts amp Service 2444 North 5th Street Hartsville SC 29550 803 879 3009 Parts Department Cans Unlimited Inc P O Box 645 Taylor SC 29687 All States 803 879 3009 1 800 845 5301 Dealers LP Equip Co P O Box 341145 Bartlett TN 38184 AL TN 901 386 8780 Capitol Hydronic Supply 104 West Jefferson Street Falls Church VA 22046 703 532 1622 Tuco Industrial Products P O Box 5076 Lynwood WA 98046 206 743 9533 1 800 735 1268 Auer Steel Supply 2935 W Silver Spring Dr Milwaukee WI 53209 414 463 1234 100793 ACCESSORIES Purchase these heater accessories from your local dealer If they can not supply these accessories contact your nearest Parts Central see page 36 You can also write to the address listed on the back page of this manual for information BLOWER KIT PART NUMBER GA6010 For all models Provides better heat distribution Makes heater more efficient Complete installation and operating instructions provided with blower MANUAL SHUTOFF V
45. replace any defective part will be provided at DESA s sole option without charge for the part itself FOB the shipping point The exchanged part will be warranted for only the unexpired portion of the original warranty Defective parts must be returned to DESA transportation charges prepaid DESA is not responsible for any freight charges where DESA will establish to its sole satisfaction that the part was or became defective under normal use and maintenance No reimbursement will be made for transportation diagnostics shipping handling or other incidental expenses This warranty applies only to the product in its original installation location and is voided if the product is reinstalled elsewhere LIMITED FOUR YEAR WARRANTY ON COMBUSTION CHAMBER During the second through fifth years after the date of original installation DESA further warrants the combustion chamber against defects in material and workmanship under normal use and maintenance A replacement combustion chamber will be provided under the same conditions as stated in the one year warranty LIMITATION OF WARRANTIES Allimplied warranties including implied warranties of merchantability are hereby limited in duration to the period for which each limited warranty is given Some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you The expressed warranties made in this warranty are exclusive and may not be altered enlarge
46. s in control knob released pressed in fully 3 Control knob not 3 After pilot lights keep pressed in long enough Safety interlock system has been triggered Thermocouple connec tion loose at control valve Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This problem could be caused by any or all of the following A Improperly ad justed pilot flame B Low gas pressure C Dirty or partially Wait one minute for Hand tighten until A Contact qualified control knob pressed in 30 seconds safety interlock system to reset Repeat ignition snug then tighten 1 4 turn more service person to properly adjust pilot flame B Contact local propane gas company C Clean pilot see Cleaning and Mainte nance page 26 or replace pilot assembly clogged pilot 7 Thermocouple dam 7 Replace thermocouple aged 8 Control valve damaged 8 Replace control valve Burner does not light 1 Safety interlock 1 Fully depress control after pilot is lit system has been inadvertently trig gered Burner orifice is clogged Burner orifice diameter is too small Inlet gas pressure is too low Clean burner see Replace burner orifice Contact local propane knob in any position other than pilot Wait one minute for safety inter lock system to reset Re peat ignition Cleaning and Mainte
47. service person 100793 TROUBLE SHOOTING A WARNING If you smell gas Shut off gas supply Do not try to light any appliance Donottouch any electrical switch do notuse any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions Ifyoucannotreach your gas supplier call the fire department OBSERVED POSSIBLE PROBLEM CAUSE REMEDY Heater produces 1 Heater burning vapors Ventilate room Stop unwanted odors from paint hair spray glues etc using odor causing products while heater is running 2 Low fuel supply Refill supply tank 3 Gas leak See Warn Find and correct all ing statement at leaks see Checking Gas top of page Connections page 13 Heater shuts off in 1 Heater not venting Check venting system use correctly Vent safety If damaged or blocked switch shuts off repair If venting system heater is OK have qualified service person replace vent safety switch wire harness or thermo couple interrupter 2 Low line pressure Contact local propane gas company 3 Pilot partially clogged Clean pilot see Clean ing and Maintenance page 26 Gas odor even when 1 Gas leak See Warn Find and correct all control knob is in ing statement at leaks see Checking Gas OFF position top of page Connections page 13 2 Control valve damaged Replace control valve G
48. will occur This odor will go away after a few hours of operation BEME FOR YOUR SAFETY READ BEFORE LIGHTING AME A WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage per sonal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department C Useonly your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service 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 EN circ nstrucions NENNEN STOP Read the safety information above I
49. xtend at least two feet above the room or inside a building highest point of any roof within ten feet Never extend vent pipe horizontally through a chimney or flue You must connect a vertical run of vent pipe to the horizontal run The vertical run must be at least 25 longer or five feet minimum than the horizontal run Never extend vent pipe horizontally through outside wall and terminate You must connect a vertical run of vent pipe to the horizontal run The vertical run must be at least 25 longer than the horizontal run Less than 5 between elbows Vertical run of pipe must be at least five feet from elbow to elbow Figure 4 Improper Venting Systems Continued DB 100793 INSTALLING HEATER Continued VENTING HEATER continued Proper Size Vent To safely vent heater the vent connector pipe must be the same diameter as the draft hood outlet on the rear of the heater Pipe that is too small can cause flue gas to spill from the heater Fasten vent connector to the draft hood outlet with a sheet metal screw Vent Types Prefabricated or Masonry All Fuel Chimney This is a masonry chimney or a residential type prefabricated chimney Only use prefabricated chimneys listed by Underwriters Laboratories UL Inc Type B Vent These vents are made of noncombustible corrosion resistant material They are certified by a nationally recognized testing agency Type B vents are double wa
50. y grounded three prong receptacle Do not cut or remove the grounding prong from this plug 1 Plug power cord into a standard 115 volt 60 hertz outlet 2 Turn the blower control to either the AUTO or ON position In the AUTO position as the heater begins to heat the blower will automatically come on The blower will remain on until the burner shuts off and cools down In the ON position the blower will stay on constantly Turn the blower control to the OFF position to stop the blower at any time Es 10 TURN OFF Gas To APPLIANCE EMMMMEME Shutting Off Heater 1 Fully depress control knob in any position other than PILOT to shut off burner and pilot 2 If equipped turn blower control to OFF position Shutting Off Burner Only pilot stays lit 1 Turn control knob to the PILOT position At this setting only the pilot remains lit 100793 INSPECTING PILOT AND BURNER FLAME Check pilot flame pattern and burner flame pattern often PILOT FLAME PATTERN Figure 19 shows a correct pilot flame pattern Figure 20 shows an incorrect pilot flame pattern The incorrect pilot flame is not touching the thermocouple This will prevent the thermocouple from getting hot causing the heater to shut down Figure 19 Correct Pilot Figure 20 Incorrect Flame Pattern Pilot Flame Pattern If pilot flame pattern is incorrect as shown in Figure 20 turn heater off see To Turn Off Gas to Appliance page 2
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