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General safety precautions
Installer reference guide
12
EPRA14~18D + ETV23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
WARNING
Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks,
ventilate the area immediately. Possible risks:
▪
Excessive refrigerant concentrations in a closed room can lead to oxygen
deficiency.
▪
Toxic gas might be produced if refrigerant gas comes into contact with fire.
WARNING
ALWAYS recover the refrigerant. Do NOT release them directly into the environment.
Use a vacuum pump to evacuate the installation.
WARNING
Make sure there is no oxygen in the system. Refrigerant may ONLY be charged after
performing the leak test and the vacuum drying.
Possible consequence:
Self-combustion and explosion of the compressor because of
oxygen going into the operating compressor.
NOTICE
▪
To avoid compressor breakdown, do NOT charge more than the specified amount
of refrigerant.
▪
When the refrigerant system is to be opened, refrigerant MUST be treated
according to the applicable legislation.
NOTICE
Make sure refrigerant piping installation complies with applicable legislation. In
Europe, EN378 is the applicable standard.
NOTICE
Make sure the field piping and connections are NOT subjected to stress.
NOTICE
After all the piping has been connected, make sure there is no gas leak. Use nitrogen
to perform a gas leak detection.
▪
In case recharge is required, see the nameplate of the unit. It states the type of
refrigerant and necessary amount.
▪
The unit is factory charged with refrigerant and depending on pipe sizes and pipe
lengths some systems require additional charging of refrigerant.
▪
ONLY use tools exclusively for the refrigerant type used in the system, this to
ensure pressure resistance and prevent foreign materials from entering into the
system.
▪
Charge the liquid refrigerant as follows:
If
Then
A siphon tube is present
(i.e., the cylinder is marked with "Liquid
filling siphon attached")
Charge with the cylinder upright.
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