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Инструкция по эксплуатации Speed Queen, модель Drying Tumblers JCB50CG

Производитель: Speed Queen
Размер: 703.49 kb
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Язык инструкции:en
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Фрагмент инструкции


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 STEAM TRAP AND MAKING CONDENSATE RETURN CONNECTIONS Steam trap must be installed and coil outlet connections must be connected to condensate return lines. The following steps outline the procedure for installing steam trap and connecting condensate return lines. See Figure 24for a typical installation. a. Connect a flexible hose to each steam coil outlet, Figure 24. b. Install a strainer to the ends of each flexible hose. c. Install a steam trap to each strainer. IMPORTANT: Steam trap must be installed a minimum of 10 inches (25.4 cm) below steam coil outlet connections, see Figure 24. d. Install a gate shut-off valve to each steam trap. e. Connect to condensate return lines. aWARNING The flexible steam hoses connecting the coil outlet connections and steam traps must have a minimum of 125 psig (pounds per square inch gauge) (8.79 kg/sq. cm.) working pressure. A shutoff gate valve must be installed downstream from each steam trap so the condensate return line can be isolated in event a steam trap requires maintenance. Each steam trap must be supported so minimum load is exerted on the coil outlet connection. M412616 47 STEAM CONNECTIONS (Steam Drying Tumblers) STEAM BONNET SUPPLY RETURN GATE VALVE TRAP WITH BUILT-IN STRAINER UNION CHECK VALVE CHECK VALVE CONDENSATE RETURN LINE FROM SUPPLY LINE OPTIONAL VACUUM BREAKER SOLENOID VALVE (Supplied with machine) NOTE: See Figure 25 for sizing of steam lines. Piping must also be sized accordingly for length of runs, and number of elbows. RELIEF VALVE 30.5 cm (12") RISERS T262IE3A Figure 24 TUMBLER MODEL STEAM PRESSURE (PSI) MINIMUM PIPE DIAMETER STEAM TRAP SIZE (Pounds Condensate/Hour) 30CSL 7-15 3/4" (1.9 cm) 140 30 CSH 80-100 3/4" (1.9 cm) 140 50 CSL 7-15 3/4" (1.9 cm) 140 50 CSH 80-100 3/4" (1.9 cm) 160 75 CSL 7-15 3/4" (1.9 cm) 140 75 CSH 80-100 3/4" (1.9 cm) 160 Figure 25 48 M412616 LIGHTING AND SHUTTING DOWN GAS IGNITION SYSTEM 1. Turn machine disconnect switch, located on rear of tumbler, to the “on” position. 2. Turn gas shut-off valve, located on rear of tumbler, to the “on” position (gas valve handle should be parallel with gas line). 3. Start tumbler, following operating instructions which accompanied it. NOTE: Ignition control circuitry will verify airflow switch, located on rear of tumbler, is open before starting cylinder motor. Once cylinder motor is started, air flowing through tumbler will cause airflow switch to close. Tumbler will purge air from tumbler for 18 seconds. Ignition will start by a three second release of gas from gas valve and sparking of ignitor. If ignition does not occur during first three seconds ignition control will “lockout” causing gas valve to close and a red button on ignition control to illuminate. To reset ...

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