Daikin Altherma ERGA04E V3 Series - To Determine the Complete Recharge Amount; To Charge Additional Refrigerant; To Fix the Fluorinated Greenhouse Gases Label

8 | Piping installation
Installer reference guide
95
ERGA04~08E + EHVH04+08SU18+23E
Daikin Altherma 3 R F
4P629090-1C – 2022.08
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.
8.4.4 To determine the complete recharge amount
INFORMATION
If a complete recharge is necessary, the total refrigerant charge is: the factory
refrigerant charge (see unit name plate) + the determined additional amount.
8.4.5 To charge additional refrigerant
WARNING
▪ Only use R32 as refrigerant. Other substances may cause explosions and
accidents.
▪ R32 contains fluorinated greenhouse gases. Its global warming potential (GWP)
value is 675. Do NOT vent these gases into the atmosphere.
▪ When charging refrigerant, ALWAYS use protective gloves and safety glasses.
NOTICE
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
"15.2To pump down"[4263] for more details.
8.4.6 To fix the fluorinated greenhouse gases label
1 Fill in the label as follows:
b
Contains fluorinated greenhouse gases
2
1
1
1
2
2
kg
tCO
2
eq
GWP × kg
1000
=
=
+
kg
=
kg
=
GWP: XXX
RXXX
a
f
c
d
e
a If a multilingual fluorinated greenhouse gases label is delivered with the unit (see
accessories), peel off the applicable language and stick it on top of a.
b Factory refrigerant charge: see unit name plate