Desa kerosene forced air service manual for Hot Surface ...

1 service MANUALLOW PRESSUREPORTABLE forced AIR HEATERHOT Surface IGNITION MODELSSECTION A2 Hot Surface Ignition Models service ManualSAFETY INFORMATION WARNINGSIMPORTANT: Read this owner s manual carefully andcompletely before trying to assemble, operate, or ser-vice this heater. Improper use of this heater can causeserious injury or death from burns, fire, explosion,electrical shock, and carbon monoxide poisoning. DANGER: Carbon monoxide poisoning may leadto death!Carbon Monoxide Poisoning: Early signs of carbon monoxidepoisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have these signs, the heater may not beworking properly. Get fresh air at once!

2 Have heater ser-viced. Some people are more affected by carbon monoxidethan others. These include pregnant women, persons withheart or lung disease or anemia, those under the influence ofalcohol, and those at high certain you read and understand all warnings. Keep thismanual for reference. It is your guide to safe and properoperation of this heater. Use only kerosene or No. 1 fuel oil to avoid risk of fire orexplosion. Never use gasoline, naphtha, paint thinners,alcohol, or other highly flammable fuels. Fuelinga)Personnel involved with fueling shall be qualified andthoroughly familiar with the manufacturer s instructionsand applicable federal, state, and local regulations re-garding the safe fueling of heating )Only the type of fuel specified on the heater s data plateshall be )All flame, including the pilot light, if any, shall be extin-guished and the heater allowed to cool, prior to )During fueling, all fuel lines and fuel-line connectionsshall be inspected for leaks.

3 Any leaks shall be repairedprior to returning the heater to )At no time shall more than one day s supply of heaterfuel be stored inside a building in the vicinity of theheater. Bulk fuel storage shall be outside the ) All fuel storage shall be located a minimum of 25 feetfrom heaters, torches, welding equipment, and similarsources of ignition (exception: the fuel reservoir integralwith the heater unit).g)Whenever possible, fuel storage shall be confined toareas where floor penetrations do not permit fuel todrip onto or be ignited by a fire at lower )Fuel storage shall be in accordance with the federal,state, or local authority having jurisdiction.

4 Never use heater where gasoline, paint thinner, or otherhighly flammable vapors are present. Follow all local ordinances and codes when using heater. Heaters used in the vicinity of tarpaulins, canvas, or simi-lar enclosure materials shall be located a safe distancefrom such materials. The recommended minimum safedistance is 10 feet. It is further recommended that theseenclosure materials be of a fire retardant nature. Theseenclosure materials shall be securely fastened to pre-vent them from igniting or from upsetting the heater dueto wind action. Use only in well-vented areas. Before using heater, pro-vide at least a three-square-foot opening of fresh, outsideair for each 100,000 Btu/Hr of rating.

5 This heater producescarbon monoxide, which is listed by the State of Californiaas a reproductive toxin under Proposition 65. Use only in places free of flammable vapors or high dustcontent. Use only the electrical voltage and frequency specifiedon model plate. Use only a three-prong, grounded extension cord. Minimum heater clearances from combustibles:Outlet: 8 Ft. Sides: 4 : 4 : 4 Ft. Locate heater on a stable and level Surface if heater ishot or running or a fire may occur. When moving or storing heater, keep heater in a levelposition or fuel spillage may occur. Keep children and animals away from heater. Unplug heater when not in use. When used with thermostat, heater may start anytime.

6 Never use heater in living or sleeping areas. Never block air inlet (rear) or air outlet (front) of heater. Never move, handle, refuel, or service a hot, operating,or plugged-in heater. Never attach duct work to front or rear of heater. Approved by the New York City Fire Department undercertificate of approval #4803, #4860, #4908, or # be used only at construction sites in accordance withapplicable New York City Codes, Regulations, Rules,Directives, Permits, etc. Warning to New York City Residents For Use Only AtConstruction Sites in accordance with applicable NYCcodes under NYCFD certificate of approval #4803, #4899,#4908, #4909, or # replacement parts Surface Ignition Models service ManualTABLE OF CONTENTSG eneral of manual .

7 3 III. service Preparation .. 3IV. Tools Required .. 4V. Parts .. Specifications1. Fuel Selection .. 52. Electrical .. 53. Ventilation .. 54. Heater Sizing .. 5II. Heater Performance Specifications .. 6 Component System1. Air Pump .. 72. Air Filters .. 73. Nozzle .. 7II. Electrical System1. Motors .. 72. Ignition Control/Photocell .. 83. Hot Surface Ignitor .. 8 III. Fuel System .. 8IV. Combustion System .. 9V. All Systems Working Together .. Requirements .. 10II. Cautions .. 10 III. Using The HA1170 Tester1. Operation .. 102. Calibration .. 10IV. Diagnostic Charts .. 10 Wiring Diagrams .. 23 GENERAL INFORMATIONI. ARRANGEMENT OF MANUALThis manual contains information and service procedures toassist the service technician in understanding and correctingproblems on DESA International oil-fired portable forced airheaters.

8 The first section of the manual contains basic infor-mation concerning the operation of the different componentsin the heater. This information should be reviewed by servicepersonnel to provide a basic understanding of how the com-ponents function in the working system. The Troubleshootingsection of this manual is intended to provide a quick referenceconcerning conditions which result in customer procedures will help the service technician quicklydiagnose a malfunctioning heater. The illustrations in thismanual may not necessarily depict the actual heater model,and are intended for reference service PREPARATIONA clean work area at the start of each job is essential forefficient service work.

9 Heaters which are extremely dirtyshould be cleaned prior to service . Cleaning will occasionallyuncover the problem area. Tools needed for the job should beobtained before work is started. Delays resulting from locatingtools result in lost time and fuel should always be used when testing heaters. Manyproblems are often traced to the use of the wrong type of fuelor dirty caution and common sense when working on a remember that kerosene is flammable, and electricalparts can result in potential shock. Heater parts are hot duringoperation, which could result in replacement parts Surface Ignition Models service ManualV. PARTSIn addition to the standard parts we now offer parts kits.

10 Listedbelow are the item numbers and the accessory descriptionITEM NUMBERACCESSORYHA1180 Air Gauge/All ModelsHA1210 Thermostat/ forced Air & LP forced AirHA1202 Heavy Duty Wheel KitFits: 35, 40, 50, 55, 60, 70 ModelsHA1206 Wheel KitFits: 35, 40, 50, 55, 60, 70 ModelsHA2203 Rear Handle Fits: 110, 115 ModelsHA2204 Rear HandleFits: 150, 155, 165, 200 ModelsHA2210 Filler Neck ScreenITEM NUMBERREPLACEMENT PART104068-03 Ignition controlFits: 35, 40, 50, 55, 60 Models104068-02 Ignition control Fits: 70, 110, 115,150, 155, 165, 200 ModelsPP204 Rotor Kit 1/2"PP206 Nozzle (35, 40 Models)Refer to Owner s ManualNozzle (50/55 Models)PP219 Nozzle (60 Models)PP220 Nozzle (70 Models)PP221 Nozzle (110, 115 Models)PP222 Nozzle (150, 155 Models)PP223 Nozzle (165 Models)PP235 Nozzle (200 Models)PP200 Hot Surface IgnitorPP213 Air Filter Kit (35, 40, 50, 55, 60, 70 Models)PP214 Filter Kit (110, 115, 150, 155, 165,200 Models)PP205 Rotor Kit 5/8"M16656-24 PhotocellPP217 Pump Adjustment KitIV.