Stimmen - 3, Durchschnittliche Bewertung: 3.3 ( )

Hersteller: Desa Dateigröße: 3.52 mb Dateiname: Unterrichtssprache:

For 170 models, the propane gas moves through the solenoid valve, burn rate adjustment valve and out the injector. The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air. The Ignition System: For 55/85/125 models the high voltage ignitor sends voltage to the spark ignitor. For 170 models direct spark ignitor sends voltage to the spark ignitor. The spark ignitor ignites the fuel and air mixture. The Safety Control System: This system causes the heater to shut down if the flame goes out. The motor will continue to run, but no heat is produced. Long screws Outlet End Cap Handle Cord Cleat Short Screw Leg Extension Fastening Screw (short) Small Post Leg Extension Plastic Foot Figure 3 - Handle and Foot Assembly Automatic Control Valve (55/85/125 models only) High Voltage Ignitor (55/85/125 Models) or DSI (170 Models) Solenoid Valve (170 models only) Air ForCombustion Air ForHeating Injector Thermal Limit Switch Hose/ Regulator Assembly Power Cord Clean Heated Air Out (Front) Cool Air In (Back) Spark Ignitor Motor Combustion Chamber Fan Figure 4 - Cross Section Operational View Propane Supply Propane/LP gas and propane/LP tank(s) are to be furnished by the user. Use this heater only with a propane/LP vapor withdrawal supply system. See Chapter 5 of the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/NFPA 58 and the Natural Gas and Propane Installation Code CSA B149.1. Your local library or fire department will have these booklets. The amount of propane/LP gas ready for use from propane/LP tanks varies. Two factors decide this amount: 1. The amount of propane gas in tank(s) 2. The temperature of tank(s) The chart below shows the number of 100 lb (45 kg) tanks needed to run this heater. Number of tanks Temperature Models at tank location 55 85 125/170 above 20° F (-7° C) 1 1 2 20° F (-7° C) to -0 (-18° C) 1 2 3 Less gas is vaporized at lower temperatures. You may need a larger tank in colder weather. Your local propane/LP gas dealer will help you select the proper supply system. Ventilation WARNING: Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater. Provide a fresh air opening of at least three square feet for each 100,000 Btu/Hr (105,500 k/j) rating. Provide extra fresh air if more heaters are being used. Installation WARNING: Review and understand the warnings in the Safety Information section, page 2. They are needed to safely operate this heater. Follow all local codes when using this heater. WARNING: Test all gas piping and connections for leaks after installing or servicing. 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. 1. Provide propane/LP su...

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