AIT WR 2.1, Operating Manual

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Subject to technical amendments without prior notice | 83058800fUK | ait-deutschland GmbH
3. Lay both sensor cables to the wall-mounted con-
troller.
6.2 Outdoor sensor

Operating manual of the heating and heat pump
controller, part 2
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”, page 11)
● 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 heat pump manual
7.2 Electrical connection
The wall-mounted controller is connected electrically
on site according to the following scheme:
5
1 Heat pump
2 Bus cable (shielded)
(accessory: electrical connection kit EVS or
EVS 8)
3 Load cable compressor
(accessory: electrical connection kit EVS or
EVS 8)
4 Wall-mounted controller
5 Control voltage
6 Load cable compressor
7 Sub-distribution
1. Fit the connectors to the bus cable and power ca-
ble of the heat pump.

Operating manual of the heat pump
2. Open the clamp ( ① ) of the cable entry.
1
1
3. Route the wired plugs of the heat pump bus cable
( ② ) and power cable ( ③ ) between the two rubber
seals ( ④ ) and plug them into the corresponding
socket in the wall-mounted controller.
4 3 2