Panasonic Aquarea WH-UD12HE5 - Preparing for Installation

148 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Installation
6
CAUTION
Danger of frostbite from the skin coming into contact with the refrigerant
Direct contact of the skin with the refrigerant can cause frostbite.
► Work on the refrigeration circuit and in connection with the refrigerant must be carried out
by a trained technician or an authorised trader holding a refrigerant handling certicate.
► Wear gloves when handling refrigerants (e.g. when emptying or lling the refrigeration
circuit).
► Observe the Safety Notes in force for the respective refrigerant (R32, R410A or R407C).
Danger of re and explosion caused by inammable gases
A danger of re or explosion arises when any leakages of inammable gases occur at the
installation site of the heat pump.
► Do not install heat pumps at sites where inammable gases can escape.
Danger due to toxic gases if the refrigerant comes into contact with re
Toxic gases can be created when escaped refrigerants come into contact with re.
For this reason, if refrigerants 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 refrigeration circuit being too high
In the event of improper installation, leaks can occur at the connections of the refrigerant pipes,
leading to air being sucked in while the compressor is operating. This results in increased pressure
in the refrigeration circuit, leading in turn to increased risk of explosion or injury.
► Carry out installation of the refrigerant pipes in a proper manner and check that there are
no leaks in the installation before turning on the compressor.
► Before the refrigerant pipes are removed or work is carried out on the pipes, switch the
compressor o󰀨.
ATTENTION
Danger of the devices being damaged by incorrect refrigerant
The devices must only be operated with the refrigerants described in this Manual or the respective
operating instructions. The use of other refrigerants or multi-component refrigerants can lead to the
devices being damaged and to safety risks. Panasonic will not accept any responsibility or liability
whatsoever if incorrect refrigerants are used.
► Only use R32 refrigerant for Aquarea High Performance and T-CAP series models of the
J Generation, only use R410A refrigerant for the Aquarea High Performance and T-CAP
series models of the H Generation and only use R407C refrigerant for the Aquarea HT
series models of the F and G Generation.
► Do not mix the prescribed refrigerant with refrigerants of another type or replace it with a
refrigerant of another type.
Danger of other material damage to the devices, e.g. due to vibrations, water leaks or re
► Any work on the water circuit must be carried out by a trained technician.
► All relevant European and national provisions (including EN 61770 “Electrical appliances
connected to the water mains”) are to be observed in installation work for the water
circuit.
► Adhere to the conditions prescribed for the installation site:
● Indoor units (hydrokits or All in One units) are only to be installed in indoor areas.
● Outdoor units and mono-bloc devices are only to be installed in outdoor areas.
10.03.2021, cH
Add R32-specific precautions