Section 2
Installation
13
Electrical Service
GENERAL
All electrical work, including wire routing and grounding,
must conform to local, state and national electrical
codes. The following precautions must be observed:
•
The ice machine must be grounded.
•
A separate fuse/circuit breaker must be provided for
each condensing unit.
•
A qualified electrician must determine proper wire
size dependent upon location, materials used and
length of run (minimum circuit ampacity can be used
to help select the wire size).
•
The maximum allowable voltage variation is +/-10 of
the rated voltage at compressor start-up (when the
electrical load is highest).
•
Check all green ground screws in the control box and
verify they are tight before starting the ice machine.
•
Verify polarity is correct. Incorrect polarity can lead to
erratic ice machine operation and a safety issue. This
is especially critical on 230 volt / 50 cycle ice
machines.
FUSE/CIRCUIT BREAKER
The ice machine head section and condensing unit are
wired independently of each other.
A dedicated circuit and a separate fuse/circuit breaker
are required for each ice machine and condensing unit.
MINIMUM CIRCUIT AMPACITY
The minimum circuit ampacity is used to help select the
wire size of the electrical supply. (Minimum circuit
ampacity is not the ice machine’s running amp load.)
The wire size (or gauge) is also dependent upon
location, materials used, length of run, etc., so it must be
determined by a qualified electrician.
GROUND FAULT CIRCUIT INTERRUPTER
We do not recommend the use of a GFCI/GFI circuit
protection with our equipment. If a GFCI/GFI is required
by code use a GFCI/GFI breaker rather than outlet
which is more prone to intermittent nuisance trips than
panel circuit breakers.
!
Warning
All wiring must conform to local, state and national
codes.
!
Warning
The ice machine and condensing unit must be
grounded in accordance with national and local
electrical codes.
Important
Observe correct polarity of incoming line voltage.
Incorrect polarity can lead to erratic ice machine
operation.
For United Kingdom Only
As the colors of the wires in the mains lead of the appliance
may not correspond with the colored markings identifying
the terminals in your plug, proceed as follows:
•
The wire which is colored green and yellow must be
connected to the terminal in the plug which is marked
with the letter E or by the earth ground symbol
or
colored green or green and yellow.
•
The wire colored blue must be connected to the terminal
which is marked with the letter N or colored black.
•
The wire colored brown must be connected to the
terminal which is marked with the letter L or colored red.
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