Start Up - Scotsman NME1250R Service Manual

START UP

1. Remove the front, left, and right side service
panels.
2. Check that the styrofoam shipping blocks under
the gearmotor, on top of the ice discharge chute,
and between the gearmotor and the right side
panel have been removed.
3. Inspect the interior of the machine for loose
screws or wires. Check that no refrigerant lines
are rubbing each other. Check that the fan blade
turns freely (remote condenser).
1. Go through the pre-start inspection.
2. Open the hand valve, observe that water enters
the water reservoir, fills the tube from the reservoir
to the evaporator, and then shuts off. Check for
leaks.
3. Open the King Valve.
4. Switch the master switch on.
The electrical start up sequence is now on
automatic.
A. There should be a short (15 second) delay
before the gearmotor starts.
B. After the gearmotor starts, the liquid line valve
will open, the pump down control will close and the
compressor will start.
5. The remote condenser fan turns, and the
condenser begins to discharge warm air.
6. The unit should soon be making ice, if desired
the low side pressure can be checked, it should be
30 psig + or - 4 psig.
Pre-Start Inspection
4. Check that the refrigerant lines are properly
installed.
5. Check that the electrical power has been on for
at least 4 hours.
6. Check that the unit is installed correctly
according to the final check list on page 10.
Start Up
The low side pressure may be 25 to 28 PSIG in
low condensing temperatures, and 35 to 40 PSIG
when in high condensing temperatures.
The discharge pressure will depend upon air and
water temperatures, but should be between 180 -
200 psig when in low condensing temperatures;
and 320 to 420 psig when in high condensing
temperatures.
7. THERE ARE NO ADJUSTMENTS TO MAKE,
so replace the panels.
8. Clean and/or sanitize the storage bin interior,
wipe off the exterior with a clean, damp cloth.
9 Give the owner/user the service manual, instruct
him/her in the operation of the unit, and make sure
they know who to call for service.
10. Fill out the Customer Evaluation and Warranty
Registration form, and mail it to Scotsman.
April 1995
Page 11
NME1250R