For The Plumber - Scotsman NS650 User Manual

NS650

FOR THE PLUMBER

CONFORM TO ALL APPLICABLE CODES
Water Inlet
Air Cooled Models: The
HAND
VALVE
recommended water supply is clean,
cold water. Use 3/8" O.D. copper
FIELD
tubing, connect to the 3/8" male flare
SUPPLIED
at the back of the cabinet. Install a
FILTER
hand valve near the machine to
control the water supply.
WATER
Water Treatment: In most areas, a
INLET
water filter of some type will be useful.
In areas where the water is highly
concentrated with minerals the water
WATER
should be tested by a water treatment
COOLED
specialist, and the recommendations
MODEL
of the specialist regarding filtration
and/or treatment should be followed.
Water Cooled Models: A separate
VENTED
3/8" O.D. copper line is
DRAIN
VENTED
recommended, with a separate hand
DRAIN
valve to control it. It is connected to a
3/8" FPT condenser inlet at the back
CONDENSER
of the cabinet. The water pressure to
DRAIN
all lines must always be above 20
psig, and below 120 psig.
Drains
Air Cooled Models: There are two
3/4" FPT drains at the back of the
cabinet. Drain lines are of the gravity
type, and 1/4 inch per foot fall is an
acceptable pitch for the drain tubing.
There should be a vent at the highest
point of each drain line, and the ideal
drain receptacle would be a trapped
and vented floor drain. Use only 3/4"
rigid tubing.
CONDENSER
Water Cooled Models: In addition to
INLET
the above mentioned drains, a
separate condenser drain must be
installed. Connect it to the 1/2"
condenser drain connection at the
back of the cabinet.
FLOOR DRAIN
December, 1988
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