Daikin Sky Air Active Series Installer's Reference Manual page 54

9 | Charging refrigerant
Installer reference guide
54
NOTICE
Before completely recharging, perform vacuum drying on the outdoor unit's internal
refrigerant piping as well.
NOTICE
To perform vacuum drying or a complete recharge of the outdoor unit's internal
refrigerant piping it is necessary to activate the vacuum mode (see
activate/deactivate the vacuum mode field
valves in the refrigerant circuit so the vacuuming process or recharge of refrigerant
can be done properly.
▪
Before vacuum drying or recharging, activate field setting "vacuum mode".
▪
After finishing vacuum drying or recharging, deactivate field setting "vacuum
mode".
WARNING
Some sections of the refrigerant circuit may be isolated from other sections caused
by components with specific functions (e.g. valves). The refrigerant circuit therefore
features additional service ports for vacuuming, pressure relief or pressurizing the
circuit.
In case it is required to perform brazing on the unit, ensure that there is no pressure
remaining inside the unit. Internal pressures need to be released with ALL the service
ports indicated on the figures below opened. The location is depending on model
type.
4-5 HP
a Internal service port
b Stop valve with service port (liquid)
c Stop valve with service port (gas)
Remove the service cover to access all service ports. See
4
outdoor unit" [ 26].
4
setting" [ 56]) which will open required
a
b
c
"6.2.2 To open the
AZAS100~140MUV/Y
Sky Air Active-series
4P743509-1 – 2023.08
"9.4.2 To