Electrical Connections - Hoshizaki FM-600ALHE Manual De Instalación

pipe). Equivalent pipe lengths that exceed
20 m should be increased in size to 3/8"
OD liquid line and 5/8" OD suction line.
Icemaker
Suction Line
Liquid Line
1/4" ID
Fig. 6
2. W h e n u s i n g a s i n g l e c o m p r e s s o r
refrigeration unit that is installed in a remote
location, ensure that it is adequately
protected against low ambient temperatures
(capacity controls/crankcase heating), oil
return where the icemaker is below the height
of the compressor (suction risers/oil traps/
oil separators) and liquid refrigerant return
where the icemaker is above the height of
the compressor (suction accumulator).
A l w a y s c h e c k t h e c o m p r e s s o r
manufacturer's guidelines.
3. An electrical link/connection between the
icemaker and compressor system is NOT
necessary. Where a multi compressor rack
system is used, the icemaker's internal
controls will close the electrically operated
solenoid valves to stop ice production.
Where a single remote compressor is used,
this must be fitted with a low pressure safety
switch to stop the compressor at approx.
0.5 bar suction pressure as the solenoid
valve's closing will result in the compressor
pumping down.
8) After completing all the refrigeration tubing
connections, the pipe work should be leak tested,
evacuated and vapour charged with R404A.
9) Open the ball valve to ensure the ice production
capacity when the compressor refrigeration
1/2" ID
Expand
Suction Line
Liquid Line
capacity is less than 1.6kW at an evaporating
temperature of -18°C, condensing temperature
43°C, return gas temperature 5°C, liquid
temperature 43°C and ambient temperature 35°C.
Close the ball valve to protect the icemaker when
the compressor refrigeration capacity is 1.6kW
or more.
10) The refrigeration connections are now complete.
Proceed to sections 4 and 5 to continue with other
service connection requirements before completing
section 6, the start-up procedure.
11) Refit the Side and Top Panels in their correct
positions.

4. ELECTRICAL CONNECTIONS

WARNING
THIS APPLIANCE MUST BE EARTHED
This icemaker requires an earth that meets the
national and local electrical code requirements.
To prevent possible severe electrical shock to
individuals or extensive damage to equipment,
install a proper earth wire to the icemaker.
Disconnect the main power supply before any
maintenance, repairs or cleaning is undertaken.
* This icemaker should not be installed:
a) Where the power supply is not within the range
of 220 - 240V.
b) Where the icemaker cannot be connected directly
into its own power supply without using an
extension cord or sharing a receptacle.
* Usually an electrical permit and services of a
licensed electrician are required.
* If the supply cord and/or the plug should need to be
replaced, it should only be done by a qualified
service engineer.
* In accordance with the requirement of the IEC
standard, the maximum permissible system
impedance (Zmax) at the interface point of the power
supply to be connected with this icemaker must be
0 . 1 7 + j 0 . 1 0 o h m ( F M - 6 0 0 / F M N - 4 4 0 ) o r
0.2908+j0.18175 ohm (FM-481). Determine in
consultation with the supply authority, if necessary,
that the icemaker is connected only to a supply of
0 . 1 7 + j 0 . 1 0 o h m ( F M - 6 0 0 / F M N - 4 4 0 ) o r
0.2908+j0.18175 ohm (FM-481) or less.
3
ENGLISH