Daikin VRV Aurora RXLQ72TATJU, Installation Manual

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32 English
15 .2 .2 . Mode 2
Mode 2 is used to change the field settings of the system. Consulting
the current field setting value and changing the current field setting
value is possible.
In general, normal operation can be resumed without special interven-
tion after changing field settings.
Some field settings are used for special operation (e.g., 1 time opera -
tion, recovery/vacuuming setting, adding refrigerant setting, etc.). In
such a case, it is required to abort the special operation before normal
operation can restart. It will be indicated in below explanations.
[2-0]= Cool/Heat selection setting
Cool/Heat selection setting is used in case the optional
Cool/Heat selector (KRC19-26A) is used. Depending on the
outdoor unit setup (single outdoor unit setup or multi outdoor
unit setup), the correct setting should be chosen. More
details on how to use the Cool/Heat selector option can be
found in the manual of the Cool/Heat selector.
Default value=0.
• 0=Each individual outdoor unit can select Cool/Heat
operation (by Cool/Heat selector if installed).
• 1=Master unit decides Cool/Heat operation when outdoor
units are connected in multiple system combination (a)
• 2=Sub unit for Cool/Heat operation when outdoor units
are connected in multiple system combination (a)
Change [2-0]=0, 1 or 2 in function of required functionality.
[2-8]= T
e
target temperature during cooling operation
Default value=0.
Value
[2-8]
T
e
target
0 Auto (default)
2 43°F (6°C)
3 45°F (7°C)
4 46°F (8°C)
5 48°F (9°C)
6 50°F (10°C)
7 52°F (11°C)
Change [2-8]=0, 2-7 in function of required operation
method during cooling.
For more information and advice about the effect of these
settings, see 15.3. Energy saving and optimum operation on
page 37.
[2-9]= T
c
target temperature during heating operation
Default value=0.
Value
[2-9]
T
c
target
0 Auto (default)
1 106°F (41°C)
3 109°F (43°C)
6 115°F (46°C)
Change [2-9]=0, 1, 3 or 6 in function of required operation
method during heating.
For more information and advice about the effect of these
settings, see 15.3. Energy saving and optimum operation on
page 37.
[2-12]= Enable the low noise function and/or power consumption
limitation via external control adaptor (DTA104A61/62).
If the system needs to run under low noise operation or
under power consumption limitation conditions when an
external signal is sent to the unit, this setting should be
changed. This setting will only be effective when the optional
external control adaptor (DTA104A61/62) is installed.
Default value=0.
To activate this function change [2-12]=1.
[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.
Default value=0.
To activate this function change [2-18]=1.
[2-20]= Additional refrigerant charge
In order to add the additional refrigerant charge amount fol-
lowing setting should be applied.
Further instructions can be found in chapter 14.3. Method for
adding refrigerant on page 28.
Default value=0.
To activate this function change [2-20]=1.
To stop the 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 recovering 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
recovering of refrigerant or vacuuming process can be done
properly.
Default value=0.
To activate function change [2-21]=1.
To stop the refrigerant recovery/vacuuming mode, push
BS3. If BS3 is not pushed, the system will remain in refriger-
ant recovery/vacuuming mode.
[2-22]= Automatic low noise setting and level during night time
By changing this setting, you can 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 (3: Level 3<2: Level2<1: Level1).
The start and stop moments for this function are defined
under setting [2-26] and [2-27].
Default value=0.
Change [2-22]=1, 2 or 3 in function of required level.
[2-25]= Low noise operation level via the external control adaptor
If the system needs to run under low noise operation condi-
tions when an external signal is sent to the unit, this setting
defines the level of low noise that will be applied (3: Level
3<2: Level 2<1: Level 1).
This setting will only be effective when the optional external
control adaptor (DTA104A61/62) is installed and the setting
[2-12] is activated.
Default value=2.
Change [2-25]=1, 2 or 3. in function of required level.
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