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8
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Piping installation
8.4.3 Charging additional refrigerant
To determine the additional refrigerant amount
Charging refrigerant: Setup
To charge additional refrigerant
8.4.4 Completely recharging refrigerant
To determine the complete recharge amount
Installer reference guide
88
If the total liquid piping
length is...
≤10 m
>10 m
INFORMATION
Piping length is the one-way length of liquid piping.
See
"8.3.3 Checking refrigerant piping:
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 both the service port of the gas stop valve
and the service port of the liquid stop valve.
2 Charge the additional refrigerant amount.
3 Open the stop valves.
INFORMATION
If a complete recharge is necessary, the total refrigerant charge is: the factory
refrigerant charge (see unit name plate) + the determined additional amount.
Do NOT add additional refrigerant.
R=(total length (m) of liquid piping – 1 0 m)×0.050
R=Additional charge (kg) (rounded in units of
0.01 kg)
4
Setup" [
84].
Then...
ERLA11~16D + EBVZ16S18+23D
Daikin Altherma 3 R F
4P643604-1B – 2022.05
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