Electrical connections
6 720 643 409 (2010/03)
37
10 Electrical connections
All regulation, control and safety devices on the heat
pump are connected and checked upon delivery.
B According to the applicable regulations for 400 V/
50 Hz connection, a H05VV-... type 5-core cable must
be used as a minimum. Select cable area and cable
type that corresponds to the relevant fuse rating
(Æ Chapter 7.3) and routing method.
B Connect the heat pump to the electric box connection
strip according to EN 60335 part 1 and via a switch
with a minimum contact distance of 3 mm (e.g. fuses,
LS switch). Other consumers must not be connected.
B Follow the relevant wiring diagram when connecting
an earth breaker. Only connect components that are
approved for each market.
B Observe the colour coding when replacing circuit
boards.
10.1 Connecting the heat pump
B Remove the front panel (Æ page 30).
B Remove the electric box cover.
B Route the connection cables to the electric box
through the cable gland in the roof plate of the heat
pump.
B Connect the cables according to the wiring diagram.
B Reinstall the electric box cover and the front panel of
the heat pump.
10.2 Phase guard
A phase guard is mounted and connected to the heat
pump in order to monitor the phase sequence to the
compressor during installation (Æ Image 11 and 12).
When the heat pump is started for the first time, the first
status lamp on the phase guard lights. If the phases are
correct, the second status lamp lights, as well. If the
phases are incorrectly connected, a signal is sent to the
control unit which triggers an alarm, Phase error E2x.B1
(ÆChapter 16.9.9).
10.3 Screed drying
Screed drying must take place with continuous access to
current. When screed drying is used, the electric
connection should therefore be made in the standard
way, see (Æ Chapter 10.4).
The screed drying process is described in
(Æ Chapter 15.7).
DANGER: Risk of electric shock!
B Switch off the main power supply before
starting work on the electrical part.
The heat pump's electrical connections
must be able to be disabled safely.
B Install separate safety switch that cuts all
current to the heat pump. A safety switch
for each supply is required for separate
power supplies.
B Install a separate earth breaker for the
heat pump.
CAUTION: Never grasp a circuit board
without wearing a ground-connected
bracelet (Æ Chapter 3.10).
To Next Page
Loading...
Need help?
General
