Electrical Connections; Water Supply And Drain Connections; Final Check List - Scotsman MCS 46 A Service Manual

Mc 46 series electronic modular cubers new pc board from s.n. 28850
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E.

ELECTRICAL CONNECTIONS

See data plate for current requirements to
determine wire size to be used for electrical
connections. All SCOTSMAN icemakers require
a solid earth wire.
All SCOTSMAN ice machines are supplied from
the factory completely pre-wired and require only
electrical power connections to the wire cord
provided at the rear of the unit.
Make sure that the ice machine is connected to
its own circuit and individually fused (see data
plate for fuse size).
The maximum allowable voltage variation should
not exceed -10% and +10% of the data plate
rating. Low voltage can cause faulty functioning
and may be responsible for serious damage to
the overload switch and motor windings.
NOTE. All external wiring should conform to
national, state and local standards and
regulations.
Check voltage on the line and the ice maker's
data plate before connecting the unit.
F.
WATER SUPPLY AND DRAIN
CONNECTIONS
General
When choosing the water supply for the ice flaker
consideration should be given to:
a) Length of run
b) Water clarity and purity
c) Adequate water supply pressure
Since water is the most important single ingredient
in producting ice you cannot emphasize too
much the three items listed above.
Low water pressure, below 1 bar may cause
malfunction of the ice maker unit.
Water containing excessive minerals will tend to
produce cloudy coloured ice cubes, plus scale
build-up on parts of the water system.
Water supply
Connect the 3/4" GAS male fitting of the solenoid
water inlet valve, using flexible tubing or a 3/8"
O.D. copper pipe, to the cold water supply line
with regular plumbing fitting and a shut-off valve
installed in an accessible position between the
water supply line and the unit.
Water supply - Water cooled models
The water cooled versions of SCOTSMAN Ice
Makers require two separate inlet water supplies,
one for the water sprayed for making the ice
cubes and the other for the water cooled
condenser.
Connect the 3/4" GAS male fitting of the water
inlet, using the flexible tubing or a 3/8" O.D.
copper pipe, to the cold water supply line with
regular plumbing fitting and a shut-off valve
installed in an accessible position between the
water supply line and the unit.
Water drain
The recommended drain tube is a plastic or
flexible tube with 18 mm (3/4") I.D. which runs to
an open trapped and vented drain. When the
drain is a long run, allow 3 cm pitch per meter
(1/4" pitch per foot).
A vent at the unit drain connection is also required
for proper sump drainage.
Water drain - Water cooled models
Connect the 3/4" GAS male fitting of the
condenser water drain, utilizing a second flexible
tubing or a 3/8" O.D. copper tubing, to the open
trapped and vented drain.
NOTE. The water supply and the water drain
must be installed to conform with the local
code. In some case a licensed plumber and/
or a plumbing permit is required.
G.

FINAL CHECK LIST

1.
Is the unit in a room where ambient
temperatures are within a minimum of 10°C
(50°F) even in winter months?
2.
Is there at least a 15 cm (6") clearance
around the unit for proper air circulation?
3.
Is the unit level? (IMPORTANT)
4.
Have all the electrical and plumbing
connections been made, and is the water supply
shut-off valve open?
5.
Has the voltage been tested and checked
against the data plate rating?
6.
Has the water supply pressure been
checked to ensure a water pressure of at least 1
bar (14 psi).
7.
Have the bolts holding the compressor down
been checked to ensure that the compressor is
snugly fitted onto the mounting pads?
8.
Check all refrigerant lines and conduit lines
to guard against vibrations and possible failure.
9.
Have the bin liner and cabinet been wiped
clean?
10. Has the owner/user been given the User
Manual and been instructed on the importance of
periodic maintenance checks?
11. Has the Manufacturer's registration card
been filled in properly? Check for correct model
and serial number against the serial plate and
mail the registration card to the factory.
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