Daikin CHYHBH08AFV32 [68/220] Charging refrigerant

7 | Installation

Installer reference guide

CHYHBH05+08AF + 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