Electrical Requirements; Important - Manitowoc 820C Serie Manual De Instalación, Operación Y Mantenimiento

Installation

Electrical Requirements

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 (dedicated circuit)
must be provided for each ice machine head section,
condenser or 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).
n
All wiring must conform to local, state and national codes.
Voltage
The maximum allowable voltage variation is +10% / -5% of
the rated voltage at ice machine start-up (when the electrical
load is highest).
n
The ice machine must be grounded in accordance with
national and local electrical codes.
12
Warning
Warning
Fuse/Circuit Breaker
A separate electrical disconnect, which disconnects all poles
and has 3 mm (3/16") contact separation, must be provided
for fixed wiring. Circuit breakers must be H.A.C.R. rated in
USA.
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) also depends on 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 an outlet, which is
more prone to intermittent nuisance trips than panel circuit
breakers.

Important

3-Phase Scroll Compressors Only - Verify the direction
of rotation is correct on the 3-phase scroll compressor.
The ice machine will have high suction pressure, low
discharge pressure and will be noticeably loud. Reverse
any two incoming power leads to reverse rotation.
Part Number: 000013325 Rev 02 6/17
Section 2