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8.7
Electrical connections
Danger!
Supply voltage!
The connection to the electric mains should only be carried out by qualified skilled personnel and must
correspond to the legal provisions in force in your region.
Prior to connecting the device, please check the name plate to avoid exceeding the indicated values. The voltage
tolerance is +/- 10%.
The installer is responsible for supplying and installing the power cable. Be sure to provide the proper fuses or
breakers based on the data information located on the nameplate.
A residual-current device (RCD) with I∆n=0.03A is suggested. The cross-section of the power supply cables must
correspond to the consumption of the chiller. In this respect, the ambient temperature, the cable laying conditions, the
length of the cables and the requirements of the local electricity supplier need to be considered.
CAUTION!
Please observe the direction of rotation of the compressor!
In this system, the direction of rotation of the compressor is supervised by a reverse-phase
protector (RPP).
When this guard is triggered, the DMC24 goes into alarm mode (the alarm LED flashes
display of the DMC24 shows
direction of rotation must be changed by interchanging two phases. These modifications must only be
carried out by a qualified electrician.
Do not by-pass the RPP protector:
rotation, the compressor will fail immediately. This will void the guarantee.
Danger!
Supply voltage and missing earth connection!
Important: ensure that the plant is connected to earth.
Do not use plug adapters at the power plug.
Possible replacement of the power plug must only be carried out by a qualified electrician.
BEKOBLIZZ® LC 480-720
and
). In the event that the compressor does not run, the
If the device is operated with the incorrect direction of
L1
L2
L3
QS
Installation
PE
and the
19
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Table of Contents
Troubleshooting
