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Resumen del manual
NATURAL GAS service must be supplied at 6... ± 1... inch water column pressure (1.62 ± .37 kPa). L.P. GAS service must be supplied at 11 ± .3 inch water column pressure (2.74 ± .07 kPa). If gas service is not same as that specified, DO NOT CONNECT THE GAS LINE TO TUMBLER! It will first be necessary to convert gas burner orifice and gas valve. IMPORTANT: Any product revisions or conversions must be made by the Manufacturer’s Authorized Dealers, Distributors or local service personnel. . WARNING The tumbler and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 kPa). The tumbler must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressure equal to or less than 1/2 psig (3.45 kPa). Purge air and sediment from gas service line before connecting it loosely to tumbler. Purge remaining air until odor of gas is detected, then tighten connection. Use pipe compound, resistant to actions of L.P. gas, on all pipe threads. . WARNING Check all pipe connections, internal and external, for gas leaks using a soapy solution. To reduce the risk of explosion or fire, DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! Gas connections should be checked annually for leakage. M412616 45 DRYING TUMBLER ENCLOSURE CONSTRUCTION IMPORTANT: DO NOT block airflow at top rear of WARNING tumbler with laundry, etc. Doing so would prevent To reduce the risk of serious injury, adequate air supply to tumbler’s heat chamber. install lockable doors to prevent public access to rear of tumblers. A typical tumbler enclosure is shown in Figure 23. Note that enclosure does touch tumbler top and side panels. Note, too, minimum and maximum IMPORTANT: Install tumblers with sufficient dimensions. Be aware that there may be local codes clearance for servicing and operating, see and ordinances which must be complied with. Figure 23. 0" CLEARANCE NOTE: Shaded areas indicate adjacent structure. 0" CLEARANCE PERMITTED FOR FIRST 4" (10.16 cm) 4" (10.16 cm) MAXIMUM 12" (30.5 cm) MINIMUM CLEARANCE GUARD 24" (61 cm) MINIMUM 36" (91.4 cm) RECOMMENDED FOR MAINTENANCE PURPOSES PROVISION FOR MAKE-UP AIR T038IE3B NOTICE: CLEARANCE OF TUMBLER CABINET FROM COMBUSTIBLE CONSTRUCTION MUST BE A MINIMUM OF 12 INCHES (30.5 cm) AT TOP. Figure 23 46 M412616 STEAM REQUIREMENTS (Steam Drying Tumblers) Size of steam service pipe is dependent upon many variables (length, tees, high pressure system, low pressure system, etc.) Specific pipe size information should be obtained from the steam system supplier or a qualified steam fitter. STEAM CONNECTIONS (Steam Drying Tumblers) INSTALLING STEAM SOLENOID VALVE AND MAKING STEAM INLET CONNECTIONS High pressure machines require a (constant) 80 to 100 psig (5.62 to 7.03 kg/sq. cm) steam service for optimum operation. Low pressure machines require a (constant) 10 to 15 psig (.70 to 1.05 kg/sq. cm) steam service for optimum operation. The following steps outline procedure for installing steam solenoid valve and connecting steam service. a. Install a manual shut-off gate valve in condensate return line after steam trap for each coil. b. Connect steam solenoid valve to related steam coil inlet connection with nipples, flex hoses, unions, tee and pressure relief valve. See Figure 24 for a typical installation. c. Install a gate shut-off valve in steam supply line, Figure 24. Connect shut-off gate valve outlet to solenoid steam valve inlet connection. aWARNING The flexible steam hoses connecting the solenoid steam valve to the coil inlets must have a 125 psig (pounds per square inch gauge) (8.79 kg/sq. cm) working pressure. A shut-off gate valve must be installed upstream from the solenoid steam valve. This way, steam can be shut off for maintenance purposes, or in the event the hose ruptures. The steam solenoid valve must be supported so minimum load is exerted on the steam coil inlet connections. INSTALLING STE...
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