Daikin EHYHBX08AFV3 [80/252] Installation

7 | Installation

Installer reference guide

EVLQ05+08CAV3 + EHYHBH05AF + EHYHBH/X08AF + EHYKOMB33AA

Daikin Altherma hybrid heat pump

4P355634-1F – 2020.10

7.9.2 Precautions when charging refrigerant

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

7.9.3 To determine the additional refrigerant amount

If the total liquid piping

length is…

Then…

≤10m Do NOT add additional refrigerant.

>10m R=(total length (m) of liquid piping⁠–⁠10m)×0.020

R=Additional charge (kg) (rounded in units of

0.01kg)

INFORMATION

Piping length is the one-way length of liquid piping.

7.9.4 To determine the complete recharge amount

7.9.5 To charge additional refrigerant

WARNING

▪ ONLY use R410A as refrigerant. Other substances may cause explosions and

accidents.

▪ R410A contains fluorinated greenhouse gases. Its global warming potential (GWP)

value is 2087.5. Do NOT vent these gases into the atmosphere.

▪ When charging refrigerant, ALWAYS use protective gloves and safety glasses.

CAUTION

To avoid compressor breakdown, do NOT charge more than the specified amount of

refrigerant.

Prerequisite: Before charging refrigerant, make sure the refrigerant piping is

connected and checked (leak test and vacuum drying).

1 Connect the refrigerant cylinder to the service port.

2 Charge the additional refrigerant amount.

3 Open the gas stop valve.

If pump down is needed in case of dismantling or relocating the system, see

"14.2To pump down"[4220] for more details.

7.9.6 To fix the fluorinated greenhouse gases label

1 Fill in the label as follows: