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ELECTRICAL CONNECTIONS
The HCAT SE condenser units leave the factory fully wi-
red. Installation is limited to connection to the mains electri-
cal supply and connection of the remote (ON/OFF) switch,
operations that must be carried out by qualified personnel
in compliance with current legislation. For all electrical work,
refer to the electrical wiring diagrams in this manual.
You are also recommended to check that:
- The characteristics of the mains electricity supply are
adequate for the absorptions indicated in the electrical
characteristics tables below, also bearing in mind the pos-
sible use of other equipment at the same time.
Power to the unit must be turned on only after installa-
tion work (refrigerant and electrical) has been completed.
All electrical connections must be carried out
by qualified personnel in accordance with legislation
in force in the country concerned.
Respect instructions for connecting phase, neu-
tral and earth conductors.The power line should be
fitted upstream with a suitable device to protect
against short-circuits and leakage to earth, isolating
the installation from other equipment.
ELECTRICAL PANEL
The electrical panel is located inside the unit at the top of the te-
chnical compartment where the various components of the re-
frigerant circuit are also to be found.To access the electrical pa-
nel, remove the front panel of the unit by undoing the
self-tapping screws. To access the components in the electrical
panel and the terminal boards, undo the four screws on the pa-
nel itself.
HED-HCAT SE FREE COOLING
Voltage must be within a tolerance of ±10% of the rated
power supply voltage for the unit (for three phase units,
the unbalance between the phases must not exceed 3%). If
this is not the case, contact the electricity supply company.
For electrical connections, use double insulation
cable in conformity with legislation in force in the
country concerned.
Install, if possible near the unit, an appropriate pro-
tection device to isolate the unit from the mains sup-
ply. This should have a delayed characteristic curve,
contacts opening by at least 3 mm and an adequate
interruption and differential protection capacity.
If this device is not visible from the electrical pa-
nel of the unit, it should be lockable.
An efficient earth connection is obligatory.
Failure to earth the appliance absolves the manufac-
turer of all liability for damage.
In the case of three phase units, ensure the
phases are connected correctly.
Do not use refrigerant pipes to earth the unit.
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ENGLISH
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