For The Plumber - Scotsman NM1250 Service Manual

NM1250

FOR THE PLUMBER

Water Inlet
Air Cooled Models: The recommended water
supply is cold water. Use 3/8" O.D. copper
tubing, connect to the 3/8" male flare at the
back of the cabinet. Install a hand valve near
the machine to control the water supply.
WATER
COOLED
HAND SHUT
OFF VALVE
CONNECT TO
COLD WATER
FILTER, FIELD
INSTALLED
(OPTIONAL)
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
3/8" FPT condenser inlet at the back of the
cabinet. The water pressure to all lines must
always be above 20 psig, and below 120 psig.
CONFORM TO ALL APPLICABLE CODES
WATER INLET
3/8" FLARE
Drains
Air Cooled Models: There is one 3/4" FPT
drain 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.
Water Cooled Models: In addition to the
above mentioned drain, a separate condenser
drain must be installed. 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.
February, 1989
Page 6
Use only 3/4" rigid tubing.
ICE MAKER
BIN DRAIN
3/4" FPT
DRAIN
3/4" FPT