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HM 6Split
HM 12Split
The thermal circuit breaker (FD1) is accessible behind
the front cover. It is reset by pressing firmly on the
button (FD1-SF2) using a small screwdriver. Press the
button using max. force 15 N (approx. 1.5 kg).
Resetting
Cable key lock
Use a suitable tool to release/lock the cables in the
terminal blocks of the indoor unit.
CAUTION
In the event of thermal protection activation, report
this to an authorised service centre in order to diag-
nose the possible case.
Thermal circuit breaker
The thermal circuit breaker (FD1) cuts off the power
supply to the electric additional heat if the tempera-
ture rises to the approx. 98 - 8°C
L1 L2 L3
N PE
The power supply connection is connected to termi-
nal block (X0) through the input on the back of the
unit (UB1, UB2) or through the input on the bottom
(UB3, UB4). The cable must be dimensioned accord-
ing to the applicable standards.
The 400V connection allows for a maximum power of
9kW to the electric additional heat. The connection should
be made according to the diagram in the user manual.
Detailed electrical diagram - see subsection “Electri-
cal wiring diagrams”.
Connections
CAUTION
To prevent interference, unscreened communication
cables and/or sensor cables to external connections
must not be laid at a distance less than 20 cm from
high-voltage cables.
CAUTION
The electrical system to which the device will be connect-
ed should be built in accordance with current regulations.
CAUTION
In the case of a dual tariff power supply, it is advisa-
ble to connect the neutral wire from the power supply
circuit (meter).
CAUTION
When a 400V connection is used, the maximum pow-
er of the electric module used in the HM 6Split / HM
12Split unit is 9kW.
Power supply connection 400V
Diagram - connecting power supply 400V
X0
Remove the
bridge to use dual-
-tariff control.
Section 6 |
Electrical connections
FD1
FD1-SF2
CAUTION
External overcurrent protection should be selected by
an appropriately qualified installer, based on the tech-
nical data contained in the manual, in accordance with
the installed equipment system.
CAUTION
The indicated sizes of power cables are recommended
for cables laid on the wall, not longer than 40 m. In other
cases, the application - types of cables or their arrange-
ment - the cross-section of the supply cables should be
selected in consultation with a qualified electrician.
