Daikin VRV IV RXYQ TTJU Series, Engineering Data

Page: 44 / 91

EDUS341411-N Installation Manual
Installation of Outdoor Units 45
3P362438-1B
35 3P362438-1B English
[2-34]= Indoor unit fan tap setting
Indoor units fan speed limitation related to connection ca-
pacity and outdoor air temperature for energy saving.
Default value=0
Value
[2-34]
Indoor unit fan tap setting
0
Fan speed is limited to L tap when indoor units
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1
In heating mode, fan speed is limited to L tap
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2
Fan speed follows a setting of the remote
controller (not limited by indoor units connection
capacity).
3
Fan speed is limited to L tap when outdoor
air temperature goes down to below 85.1°F
(29.5°C). It returns to remote controller setting
when outdoor air temperature goes up to over
90.5 °F (32.5°C).
4
Fan speed is limited to L tap when outdoor
air temperature goes down to below 74.3°F
(23.5°C). It returns to remote controller setting
when outdoor air temperature goes up to over
79.7°F (26.5°C).
5
Fan speed is limited to L tap when outdoor
air temperature goes down to below 66.7°F
(19.3°C). It returns to remote controller setting
when outdoor air temperature goes up to over
72.1°F (22.3°C).
[2-35]= Height difference setting
Default value=1
In case the outdoor unit is installed in the lowest position
(indoor units are installed on a higher position than outdoor
units) and the height difference between the highest indoor
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[2-35] should be changed to 0.
Other changes/limitations to the circuit apply, for more infor-
mation see 7.5.2. System only containing VRV indoor units
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[2-49]= Height difference setting
Default value=0
In case the outdoor unit is installed in the highest position
(indoor units are installed on a lower position than outdoor
units) and the height difference between the lowest indoor
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[2-49] has to be changed to 1.
Other changes/limitations to the circuit apply, for more infor-
mation see 7.5.2. System only containing VRV indoor units
QPRCIG|
[2-81]= Cooling comfort setting
Default value=1
Value
[2-81]
Cooling comfort setting
0 'EQ
1 Mild (default)
2 Quick
3 Powerful
Change [2-81]=0, 1, 2 or 3 in function of required limitation.
This setting is used in conjunction with setting [2-8].
For more information and advice about the impact of these
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[2-82]= Heating comfort setting
Default value=1
Value
[2-82]
Heating comfort setting
0 'EQ
1 Mild (default)
2 Quick
3 Powerful
Change [2-82]=0, 1, 2 or 3 in function of required limitation.
This setting is used in conjunction with setting [2-9].
For more information and advice about the impact of these
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[2-83]= Master user interface allocation in case VRV indoor units
and Mini-split indoor units are used at the same time
By changing setting [2-83], you can allow the VRV indoor
unit to be the operation mode selector (system power OFF/
ON is required after applying this setting).
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[2-83]=1 Mini-split indoor unit has mode selection right
(default setting).
r
[2-83]=0 VRV indoor unit has mode selection right.
15.3. Energy saving and optimum operation
This VRV IV heat pump system is equipped with advanced energy
saving functionality. Depending on the priority, emphasizes can be
put on energy saving or comfort level. Several parameters can be se-
lected, resulting in the optimal balance between energy consumption
and comfort for the particular application.
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rameters to the needs of your building and to realize the best balance
between energy consumption and comfort.
15.3.1. Three main operation methods are available:
r Basic
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It corresponds to the standard operation which is known and can be
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r
To activate this operation method under cooling operation:
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r
To activate this operation method under heating operation:
EJCPIGƂGNFUGVVKPI=?
r Automatic
The refrigerant temperature is set depending on the outdoor ambi-
ent conditions. As such adjusting the refrigerant temperature to
match the required load (which is also related to the outdoor ambi-
ent conditions).
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much cooling under low outdoor ambient temperatures (e.g., 77°F
(25°C)) as under high outdoor ambient temperatures (e.g., 95°F
(35°C)).
Using this idea, the system automatically starts increasing its refrig-
erant temperature, automatically reducing the delivered capacity
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r
To activate this operation method under cooling operation:
EJCPIGƂGNFUGVVKPI=?FGHCWNV
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much heating under high outdoor ambient temperatures (e.g., 59°F
(15°C)) as under low outdoor ambient temperatures (e.g., 23°F
(–5°C)).