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Installation
Installer reference guide
68
C08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
7.8 Charging refrigerant
7.8.1 About charging refrigerant
The outdoor unit is factory charged with refrigerant, but in some cases the
following might be necessary:
What
When
Charging additional refrigerant
When the total liquid piping length is
more than specified (see later).
Completely recharging refrigerant
Example:
▪
When relocating the system.
▪
After a leak.
Charging additional refrigerant
Before charging additional refrigerant, make sure the outdoor unit's
external
refrigerant piping is checked (leak test, vacuum drying).
INFORMATION
Depending on the units and/or the installation conditions, it might be necessary to
connect electrical wiring before you can charge refrigerant.
Typical workflow – Charging additional refrigerant typically consists of the following
stages:
1
Determining if and how much you have to charge additionally.
2
If necessary, charging additional refrigerant.
3
Filling in the fluorinated greenhouse gases label, and fixing it to the inside of
the outdoor unit.
Completely recharging refrigerant
Before completely recharging refrigerant, make sure the following is done:
1
All refrigerant is recovered from the system.
2
The outdoor unit's
external
refrigerant piping is checked (leak test, vacuum
drying).
3
Vacuum drying on the outdoor unit's
internal
refrigerant piping is performed.
Typical workflow – Completely recharging refrigerant typically consists of the
following stages:
1
Determining how much refrigerant to charge.
2
Charging refrigerant.
3
Filling in the fluorinated greenhouse gases label, and fixing it to the inside of
the outdoor unit.
7.8.2 About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent gases into the
atmosphere.
Refrigerant type: R32
