7 Configuration
Installer and user reference guide
34
RXYSQ8~12TMY1B
VRV IV-S system air conditioner
4P404225-1B – 2016.03
Setting
(= binary)
Value
Description
[2‑18]
Fan high static pressure setting.
In order to increase the static pressure the outdoor unit
fan is delivering, this setting should be activated. For
details about this setting, see technical specifications.
0 (default)
(= binary 1) (default)
Deactivated.
1
(= binary 2)
Activated.
[2‑20]
Manual additional refrigerant charge.
In order to add the additional refrigerant charge
amount in a manual way (without automatic refrigerant
charging functionality), following setting should be
applied.
0 (default)
(= binary 1) (default)
Deactivated.
1
(= binary 2)
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.
0 (default)
(= binary 1) (default)
Deactivated.
1
(= binary 2)
Activated.
To stop the refrigerant recovery/vacuuming
mode, push BS1 (in case of RXYSQ8) or BS3
(in case of 12). If it 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].
0 (default)
(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.
1
Level 1
Level 3<Level 2<Level 1
2 (default)
(default)
Level 2
3
(= binary 4)
Level 3
[2‑26]
Low noise operation start time.
This setting is used in conjunction with setting [2‑22].
1
20h00
2 (default)
(default)
22h00
3
(= binary 4)
24h00
[2‑27]
Low noise operation stop time.
This setting is used in conjunction with setting [2‑22].
1
6h00
2
7h00
3 (default)
(= binary 4) (default)
8h00
