Daikin RYYQ8U7Y1B, Installer And User Manual

Page: 132 / 176

19 | Configuration
Installer and user reference guide
132
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11
In order to add the additional refrigerant charge amount in a manual way (without
automatic refrigerant charging functionality), following setting should be applied.
Further instructions regarding the different ways to charge additional refrigerant
into your system can be found in chapter
"17.4.2 About charging
refrigerant" [
4
96].
[2‑20] Description
0 (default) Deactivated.
1 Activated.
To stop the manual additional refrigerant charge
operation (when the required additional refrigerant
amount is charged), push BS3. If this function was not
aborted by pushing BS3, the unit will stop its operation
after 30 minutes. If 30 minutes was not sufficient to add
the needed refrigerant amount, the function can be
reactivated by changing the field setting again.
[2‑21]
Refrigerant recovery/vacuuming mode.
In order to achieve a free pathway to reclaim refrigerant out of the system or to
remove residual substances or to vacuum the system it is necessary to apply a
setting which will open required valves in the refrigerant circuit so the reclaim of
refrigerant or vacuuming process can be done properly.
[2‑21] Description
0 (default) Deactivated.
1 Activated.
To stop the refrigerant recovery/vacuuming mode, push
BS3. If BS3 is not pushed, the system will remain in
refrigerant recovery/vacuuming mode.
[2‑22]
Automatic low noise setting and level during night time.
By changing this setting, you activate the automatic low noise operation function
of the unit and define the level of operation. Depending on the chosen level, the
noise level will be lowered. The start and stop moments for this function are
defined under setting [2‑26] and [2‑27].
[2‑22] Description
0 (default) Deactivated
1 Level 1 Level 3<Level 2<Level 1
2 Level 2
3 Level 3
[2‑25]
Low noise operation level via the external control adaptor.
If the system needs to be running under low noise operation conditions when an
external signal is sent to the unit, this setting defines the level of low noise that will
be applied.
This setting will only be effective when the optional external control adaptor
(DTA104A61/62) is installed and the setting [2‑12] was activated.