For The Plumber - Scotsman NM1850 Manual

NM1850

FOR THE PLUMBER

Water Inlet
Air Cooled Models: The recommended water
supply is clean, cold water. Use 3/8" O.D.
copper tubing, and connect to the single 3/8"
male flare at the back of the cabinet. This
connection supplys water to both ice making
systems. Install a hand valve near the
machine to control the water supply.
Water Treatment: In most areas, a water filter
of some type will be useful. In areas where the
water is highly concentrated with minerals the
water should be tested by a water treatment
specialist, and the recommendations of the
specialist regarding filtration and/or treatment
should be followed.
Water Cooled Models: A separate 3/8" O.D.
copper line is recommended, with a separate
hand valve to control it. It is connected to a
single 3/8" FPT condenser inlet at the back of
the cabinet. This connection supplys water to
both water cooled condensers. The water
pressure to all lines must always be above 20
psig, and below 120 psig.
AIR COOLED
MODELS
FIELD
SUPPLIED
FILTER
HAND
VALVE
CONDENSER
INLET
WATER
COOLED
HAND
VALVE
WATER
FILTER
CONFORM TO ALL APPLICABLE CODES
WATER
VENTED
INLET
DRAIN
VENTED
DRAIN
CONDENSER
DRAIN
Drains
Air Cooled Models: There is one 3/4" FPT
drain for both ice making systems at the back
of the cabinet, the drain line is 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 the drain line, and
the ideal drain receptacle would be a trapped
and vented floor drain. Use only 3/4" rigid
tubing.
Water Cooled Models: In addition to the
above mentioned drain, a separate condenser
drain must be installed. There is one drain for
both ice making systems. Connect it to the
1/2" condenser drain connection at the back of
the cabinet.
Storage Bin: A separate gravity type drain
needs to be run, similar to the air cooled drain.
Insulation of this drain line is recommended.
COMPLETE PLUMBING INSTALLATION, WATER
May, 1989
Page 6
COOLED