6 Configuration
Installation and operation manual
24
8T7Y1B
VRV IV compressor unit for indoor installation
4P408443-1B – 2016.04
Setting
Value
(8 HP)
(5 HP)
Description
[2‑16]
Test run heat exchanger unit.
When activated, the heat exchanger fans start running.
This allows you to check the ducting with a running
heat exchanger unit.
0 (default)
—
Deactivated.
1
—
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 5 HP) or BS3 (in
case of 8 HP). 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
Summary of Contents for VRV IV RKXYQ8T7Y1B
Page 41: ......
Page 42: ......
Page 43: ......
Page 44: ...4P408443 1 B 0000000 4P408443 1B 2016 04 Copyright 2015 Daikin ...
