Dexter Laundry DLC30 Series Gebruikershandleiding - Pagina 6

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3. MAKE-UP AIR. Adequate make-up air (830 CFM) must be supplied to replace air exhausted by dryers on all

types of installations. Provide a minimum of one square foot make-up air opening to the outside for each dryer. This

is a net requirement of effective area. Screens, grills or louvers, which will restrict the flow of air, must be considered.

Consult the supplier to determine the free area equivalent for the grill being used.

The source of make-up air should be located sufficiently away from the dryers to allow an even airflow to the air

intakes of all dryers. Multiple openings should be provided.

NOTE: The following considerations must be observed for gas dryer installations where dry cleaners are

installed. The sources of all make-up air and room ventilation air movement to all dryers must be located

away from any dry cleaners. This is necessary so that solvent vapors will not be drawn into the dryer inlet

ducts. Dry cleaner solvent vapors will decompose in contact with an open flame such as the gas flame

present in clothes dryers. The decomposition products are highly corrosive and will cause damage to the

dryer(s), ducts and clothes loads.

4. ELECTRICAL REQUIREMENTS. The electrical power requirements necessary to operate the unit satisfacto-

rily are listed on the serial plate located on the back panel of each dryer. The electrical connection should be made

to the pig tail leads in the outlet box (or terminal board, if supplied) on the rear of the unit, using a wire size adequate

to handle the amperage and voltage listed on the serial plate, but never smaller than No.12 AWG wire. It is absolutely

necessary that the dryer be grounded to a known ground.

Individual circuit breakers for each unit are recommended. The wiring diagram is located on the belt guard on the

back of the machine.

5. GAS REQUIREMENTS. The complete gas requirements necessary to operate the dryer satisfactorily are listed

on the serial plate located on the back panel of the dryer.

The inlet gas connection to the unit is 1/2-inch pipe thread.

A joint compound resistant to the action of liquefied petroleum gases should be employed in making pipe

connections.

A 1/8-inch NPT plugged tapping, accessible for test gage connection, must be installed immediately upstream of

the gas supply connection to the dryer.

A drip tee should be provided in the gas piping entering the unit to catch dirt and other foreign articles.

All pipe connections should be checked for leakage with soap solution. Never check with an open flame.

For altitudes above 2,000 feet (610m) it is necessary to derate the BTU input. Contact your local distributor for

instructions.

L.P. gas conversion kits are available for this dryer. Contact your local distributor.

CAUTION: The dryer and its individual shutoff 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. The dryer must be isolated from

the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas

supply piping system at test pressures equal to or less than 1/2 psig.

6. EXHAUST INSTALLATION. (Refer to Figure 2 at the end of section 6.) Exhausting of the dryer(s) should be

planned and constructed so that no air restrictions occur. Any restriction due to pipe size or type of installation can

cause slow drying time, excessive heat, and lint in the room.

From an operational standpoint, incorrect or inadequate exhausting can cause a cycling of the high limit thermostat,

which shuts off the main burners and results in inefficient drying.

Individual exhausting of the dryers is recommended. All heat, moisture, and lint should be exhausted outside by

attaching a pipe of the proper diameter to the dryer adapter collar and extending it out through an outside wall. This

pipe must be very smooth on the inside, as rough surfaces tend to collect lint, which will eventually clog the duct and

prevent the dryer from exhausting properly. All elbows must be smooth on the inside. All joints must be made so the

exhaust end of one pipe is inside the next one downstream. The addition of an exhaust pipe tends to reduce the