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Fabricar: Cleveland Range Tamaño del archivo: 3.93 mb Nombre del archivo: Idioma del manual:

Super Steamcraft. or “D" Series Defroster With or Without Kettles N/A 10 psi 15 psi N/A 10 psi 10 psi 20 psi CLEVELAND RANGE, INC., 1333 EAST 179th ST., CLEVELAND, OHIO 44110 Manufacturer reserves right of design improvement y modification. as tuananted- 04SS UTHO IN U£J<. Data Sheet 260-BD-1 SERVICING INSTRUCTIONS PROBE SYSTEM: ELECTRIC WATER FILL AND ELECTRIC LOW WATER FUEL CUT OFF FOR STEAM GENERATOR — 3 PROBE TYPE WARNING: Service of the steam generator must be performed only by trained and experienced service technicians. During operation of the steam generator, the water level is maintained automatically by unequal length probe extensions inside. The probes and extensions must be kept clean and free of scale deposits in order to function properly. The probe extensions are sensors in a control system which monitors and maintains the water level between the end of the short probe extension and the end of the intermediate extensioft. I « The long probe, called "Low Water.” is asafety sensor which shuts off the fuel supply if there is insufficient waterin the steam generator. Since the control system is ali electric and these parts don’t move or wear, they can be expected to have a long life. If they do malfunction, it is generally because untreated hard feedwater is being used in the steam generator. This forms scale on the submerged ends of the probe extensions and on the top horizontal surfaces of the probes. After this scale is removed, the parts will function properly. To eliminate the cause of scaling, refer to separate data sheets for feedwater treatment information and corrosion protector servicing instructions. Probes and probe extensions should be wiped ciean each time the corrosion protector is replaced. Erratic operation may result from loose connections on either end of the probe. The external end of the probe has a nut to hold the wiring terminal snugly to the probe. This nut. if loose, may be tightened, firmly but gently. Too much torque will turn the center peice of the probe and misalign the attached probe extension inside, causing the probe to become inoperative. Inside the steam generator, the screw which holds the probe extension to the probe may be loose, allowing the probe extension to swing or rest against some part of the steam generator. This can be corrected by removing the hand hole plate and reaching inside to align and hold the probe extensions vertically while tightening the screws. To Service the Probes or the Probe Extensions 1) Turn off all utilities and fuel to steam generator. Drain Steam generator. CAUTION: Never work on the steam generator when it is hot or pressurized. 2) Remove probe cover on outside of steam generatorto expose probe terminals. Examine for loose wiring terminals. 3) Remove hand hole cover plate from steam generator. See separate data sheet for instructions. 4) Remove probe extensions from probes on inside of steam generator, clean off scale, and re-install. Or. install new probe extensions if preferred. 5) Remove scale from the probe (see sketch above). Do not use an abrasive on the teflon insulator. If the old probe needs replacement, install a new one. (CONTINUED ON THE REVERSE SIDE) CLEVELAND RANGE, INC., 1333 EAST 173th ST., CLEVELAND, OHIO 44110 Manufacturer reserves right of design improvement or modification, as warranted. Ö482 LITHO IN U.S.A Data Sneet 260-80-2 (CONTINUED) SERVICING PROBE SYSTEM: ELECTRIC WATER FILL AND INSTRUCTIONS ELECTRIC LOW WATER FUEL CUT OFF FOR STEAM GENERATOR — 3 PROBE TYPE 6) Assemble probe extensions to probes on inside of steam generator so they hang vertically, parallel to each other. Malfunctioning will occur if an extension touches any part of the steam generator or another probe extension. 7) If insulation on electrical wires to the probe shows signs of being broken, cut or deteriorated, the wires should be replaced. 8) Connect wire terminals on outside of steam generator to probe terminals as follows: Red wire to the shortest probe. Turns water off. Black wire-to the intermediate probe: T urns'wateron. White wire to the longest probe. Shuts off fuel (low water safety fuel shut-off). 9) Re-install hand hole plate and install a new gasket. The hand hole plate should be cleaned and examined each time it is removed. If the plate is chipped or cracked, it should be replaced immediately. Because continuous use and possible abuse can cause metal fatigue which weakens the hand hole plate, a new one should be installed at least every three years. Replace the gasket at least once a year —or sooner if it is cracked or hardened. 10) Replace probe cover and check to make sure that the cover does not contact probes, n) Close steam generator drain valve. Turn on utilities and fuel supply to steam generator. 12) Operate and observe steam generator long enough to insure that it is functioning properly. Low Water Fuel Cut Off Test Proper operation of the “Low Water” probe extension sho...

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