Dexter Laundry T-80 Reversing (On-Premise) - Manual (Page 6)

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3. MAKE-UP AIR. Adequate make-up air (1200 CFM [34 m
3
/min]) must be supplied to
replace air exhausted by dryers on all types of installations. Provide a minimum of 1.5 square
feet [0.14 sq. meters] of 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. (Refer to schematic and wiring diagram). This dryer
is equipped with a control transformer for use on 208-240-3PH-60Hz. The control voltage is
24V, 60 Hz. The electrical power requirements necessary to operate the unit satisfactorily are
listed on the serial plate located on the back panel of each dryer. The electrical connection
should be made to the terminal in the control box 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. The ground lug must be connected to a good external ground.
Individual circuit breakers for each unit are recommended. The schematic and wiring
diagram are located on the belt guard on the back of the machine.