Desa 30-80 Owner's Manual

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Contents

Desa 30-80 Owner's Manual Manual pdf 7 page image

www.desatech.com113811-01A 7SPECIFICATIONS80,000 Btu 200,000 BtuType of Gas Propane/LP Only Propane/LP OnlyGas Supply Pressure to regulatorMaximum Bottle Pressure Bottle PressureMinimum 5 psig (34.5 kPa) 15 psig (103 kPa)Gas Supply Pressure regulator out 11" W.C. (2.74 kPa) 10 psig (68.9 kPa)Ignition Piezo Ignitor Piezo IgnitorMinimum Ambient Temp. Rating 0°F (-17.8°C) 0°F (-17.8°C)Rating 30,000 - 80,000 Btu/hr 75,000 - 200,000 Btu/hr(8.79 - 23.4 kW) (22.0 - 58.6 kW)Fuel Consumption 1.4 to 3.7 lb/hr 3.5 - 0.3 lb/hr(.74 – 1.80 kg/hr) (1.44 - 4.32 kg/hr)Fuel Orifice Port No. 6 6Fuel Orifice Port Size 0.0472" 0.0320"(1.20mm) (.813mm)TROUBLESHOOTINGWARNING: Never service heater while it is plugged in, connectedto propane supply, operating, or hot. Severe burns and electricalshock can occur.REMEDY1. Open propane supply valveslowly2. Close propane supply valve onpropane tank and reopen slowly3. Replace burner orifice4. Check to assure ignitor elec-trode gap is .195" Check wirelead for damage. Replacepiezo ignitor and/or ignitorelectrode as necessary5. Clean or replace pilot assembly1. Relight, hold automatic controlvalve button in 45 seconds2. Check propane tank(s) forproper gas supply3. Tighten connection or replacethermocouple4. Replace automatic controlvalve1. Turn valve counter clockwiseto HIGH2. Replace gas orifice3. Check gas supply; checkregulator output4. Consult propane gas supplierOBSERVED FAULTBurner fails to lightPilot lights but goes out whenautomatic control valve buttonis releasedBurn rate is lowPOSSIBLE CAUSE1. Propane supply valve closedon propane tank(s)2. Excess flow check valveclosed3. Blockage in burner orifice4. Piezo ignition system notsparking5. Pilot orifice clogged1. Not enough warm up time2. Low gas pressure3. Thermocouple loose or needsto be replaced4. Automatic control valve needsto be replaced1. Control valve is on LOW2. Plugged gas orifice3. Low gas pressure4. Low fuel supply