138 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
139
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
CAUTION
Danger of frostbite from the skin coming into contact with the coolant
Direct contact of the skin with the coolant can cause frostbite.
► Work on the cooling circuit and in connection with the coolant must be carried out by a
trained technician or an authorised trader holding a coolant certicate.
► Wear gloves when handling coolants (e.g. when emptying or lling the cooling circuit).
► Observe the Safety Notices in force for the respective coolant (R410A or R407C).
Danger of re and explosion caused by inammable gases
A danger of re or explosion arises when any leakages of inammable gases occur at the instal-
lation site of the heat pump.
► Do not install heat pumps at sites where inammable gases can escape.
Danger due to toxic gases if the coolant comes into contact with re
Toxic gases can be created when escaped coolants come into contact with re.
For this reason, if coolants escape during installation or operation:
► Extinguish any sources of re (if present).
► Thoroughly ventilate the room in which the heat pump is installed.
Danger of explosion and injury caused by pressure in the coolant circuit being too high
In the event of improper installation, leaks can occur at the connections of the coolant pipes,
leading to air being sucked in while the compressor is operating. This results in increased pres-
sure in the coolant circuit, leading in turn to increased risk of explosion or injury.
► Carry out installation of the coolant pipes in a proper manner and check that there are
no leaks in the installation before turning on the compressor.
► Before the coolant pipes are removed or work is carried out on the pipes, switch the
compressor off.
6.1 Safety Notices for installation
Pay particular attention to the following safety notices before and during installation:
WARNING
Danger to life from electric shock!
The devices are operated with 230-V or 400-V alternating current. Improper installation
can present a danger to life from electric shock as well as a danger of re occurring due to
superheat.
► Electrical installation work must be undertaken by a trained electrician.
► Service and maintenance work must only be carried out by an accredited electrician or
an authorised dealer.
► Keep children and people unfamiliar with the equipment away from any installation
work.
► Adherence to national and local standards and regulations is to be observed when
carrying out any installation work.
► Ensure that all cables and power connections, including those already in place, are of
adequate dimensions for the electrical power of the heat pump.
► Only use licensed power cords for connecting to a power source. No modied cables
or extension cables are to be used for connecting to the power source.
► The heat pumps must be duly earthed. Earthing is not to be undertaken via gas or
water pipes, lightning conductors or earthing for a telephone system.
► Adherence is to be paid to the respective national electrical wiring regulations and
safety arrangements with regard to residual current. Panasonic recommends using a
residual current protection switch (FI protection switch).
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