13
Subject to change without notice | 83031300dUK | ait-deutschland GmbH
13 Electrical installation
13.1 Establishing the electrical
connections
IMPORTANT
Irreparable damage to the compressor due to wrong
rotary field!
► Ensure that there is a clockwise rotary 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 miniature circuit-breaker
with at least 3
mm contact spacing (per
IEC 60947-2)
●
Note the level of the tripping current (
“Techni-
cal data / scope of supply“, page 20)
●
Comply with the electromagnetic compatibility
regulations (EMC regulations)
1. If the unit is closed, open the lower facing panel
on the operating side.
2. Open electrical switch box of unit.
1 Electrical switch box
3. Lead power cable, power cable for circulating
pumps and cable for external temperature sensor
through the rubber sockets on the facing panel in
the unit.
3.1. Cut out the rubber grommets on the lower facing
of the water connection side.
Positioning of the rubber grommets for cable entry:
“Dimensional drawings“, from page 22
3.2. Push the lines through the rubber grommets in-
to the unit and lead the lines inside the unit to the
electrical switch box.
4. Install electric connections according to the termi-
nal diagram.
“Terminal diagram”, page 30
5. Close electrical switch box of unit.
6. Attach the lower facing panel to the operating side.
7. Connect the power cable to the power supply.
IMPORTANT
If using the unit in 3~230V systems, please note
that the residual-current circuit breaker (RCCB)
used must be AC-DC sensitive.
