12
Subject to technical amendments without prior notice | 83059300iUK | ait-deutschland GmbH
7 Electrical installation
7.1 Connect the electrical cables
IMPORTANT
Irreparable damage to the compressor due to wrong
rotating field!
► Ensure that there is a clockwise rotating field for
the compressor load infeed.
Basic information on the electrical connection
● The specifications of the local energy supply
company may apply to electrical connections
●
Fit the power supply for the heat pump with an
all-pole circuit breaker with at least 3 mm contact
spacing (per IEC 60947-2)
●
Note the level of the tripping current (
„Technical
data / Scope of supply“, from page 19))
●
Comply with the electromagnetic compatibility
regulations (EMC regulations)
●
Lay unshielded power supply cables and shielded
cables (bus cable) sufficiently far apart (> 100 mm)
●
Maximum line length: 30m
Cable extension details see operating manual of
the heat pump
Establish the electrical connections between
the heat pump and the hydraulic station
Operating manual of the heat pump
NOTE.
For dual output-controlled heat pumps, the
lines (8 m) are already connected to the heat
pump.
7.2 Electrical connection
The electrical connection is established via the switch
box.
The hydraulic station is connected on site to the
sub-distribution according to the following scheme:
1 Heat pump
2 Load Compressor
3 Bus (shielded)
4 Control voltage (for dual heat pump only)
5 Hydraulic station
6 Elektric heating element load line
7 Control voltage
8 Load Compressor
9 Sub-distribution
1. Feed the control and sensor cables, the Bus and
load cable from the heat pump, the cable for the
EVU blocking time as well as the cables of exter-
nal loads through the grommet on the rear (
①
) of
the device into the interior of the device.
1
1
2
2. Feed the cables through the cable duct (
②
) to the
switch box.
Summary of Contents for HSDV 12.1M3
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