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Фрагмент инструкции
403071 * (43828) STEAMCOIL GAS 160-200 M GAS 250-300 M SERVICE NOTE The above drawings showing the sight gauge location and method of mounting are for assisting in determining the proper part number for replacement generators. When ordering, please provide both the proper part number and the equipment’s serial number. CLEVELAND RANGE CO., 1333 EAST 179th ST., CLEVELAND, OHIO 44110 1090 LiTHO in U.S.A. Manufacturer reserves right of design improvement or modification, as warranted. Data Sheet 260-Ul STEAM GENERATOR (2 PROBE TYPE) MAINTENANCE PROCEDURES CAUTION: Service on the generator must be performed only by a trained and experienced service technician, thoroughly familiar with servicing steam generators. No work should be done on the steam generator while it is pressurized or hot Be sure all energy sources are shut off before the start of any work. The steam generator must be drained under pressure (blowdown) after a maximum of 8 hours of use. If the generator’s feedwater contains more than 300 parts per million of total dissolved solids, the generator must have a blowdown after each 4-6 hours of use. “Blowdown” means the generator must be drained under pressure. THE GENERATOR “BLOWDOWN” IS PERFORMED BY SHUTTING OFF THE UNIT’S RED-LIGHTED “POWER” SWITCH WHILE-THE GENERATOR IS AT NORMAL OPERATING -PRESSURE.-WHEN THE BOTTOM OF THE “POWER” ROCKER SWITCH IS PUSHED, ITS RED LIGHT GOES OUT. AND THE DRAIN VALVE AUTOMATICALLY OPENS, DRAINING THE GENERATOR AN AUTOMATICALLY-TIMED SOLENOID VALVE WILL FLUSH THE DRAIN FOR 3 MINUTES, THEN SHUT OFF. AFTER 3 MINUTES, THE UNIT CAN BE RESTARTED. Even though the “Blowdown” is performed faithfully each day. it will still be necessary to have a qualified service technician periodically inspect the inside of the generatorfor scaling or pitting. The generator’s hand hole plate should be removed at regular intervals, so that it and the inside of the generator can be inspected. The hand hole plate should be cleaned and examined each time rt is removed. If the hand hole plate is chipped or cracked, or over three years old, install a new one. A new hand hole gasket should always be installed. Scaling indicates a high concentration of dissolved minerals in the feed water. Pitting indicates an excess acid condition. The best way to reduce servicing time and to assure a long generator life is to provide feed water that is low in mineral content and low in gas content Water that is fit to drink can still be high in impurities that are highly detrimental to a steam generator. Consult the state department of water for an on-the-premises water analysis and for recommendations concerning steam generator feed water treatment (if required), in order to remove or reduce harmful concentrations of minerals. CAUTION: Neven tighten the hand hole plate nut when the steam generator is in use, hot, or otherwise pressurized. Never tighten nut over 15 foot-pounds torque. Overtightening may cause uneven stress, which may result in the weakening and possible breakage of the plate. The “Blowdown” procedure will not completely remove the mineral deposits that adhere to the top of the generator. It will be necessary to periodically have scale accu mulations removed from the inside of the steam generator by a qualified service technician. Only a U.S.D.A. approved acid cleaner should be used to descale the generator. Descaling should be done once a year, but in poor water (highly mineralized) areas it may be needed two or three times a year. Failure to periodically remove scale from the inside of the generator will result in greatly reduced generator life. Check the safety valve once a month while the steam generator is pressurized. Test by pulling the safety valve iever. The valve must open freely and snap closed when released. If it does not or if it drips constantly, a new safety valve is needed. If the steam generator is to be left idle for three months or more, it should be drained and dried out and the hand hole plate left off. 048S CLEVELAND RANGE, INC., 1333 EAST 179th ST., CLEVELAND, OHIO 44110 UTHO IN U.S.A. Manufacturer reserves right of design improvement or modification, as warranted. Data Sneet 260-UM WATER QUALITY REQUIREMENTS — 2-PROBE TYPE STEAM GENERATOR PROTECTION AND MAINTENANCE A steam generator, or boiler, unlike other types of water-using kitchen equipment distills the water in order to make steam. Nearly all feed-water sources contain dissolved minerals in varying degrees of concentration. As this water is boiled, pure steam rises from its surface, upward to the cooking compartments), leaving minerals behind, that can become harmful to the steam generator. If minerals are allowed to accumulate inside the steam generator, they will solidify as a scale. Then, malfunctioning will occur, and serious equipment damage may result The use of good quality generator feed water is the responsibility of the owner/user. The use of poor quality feed water could void equ...
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