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
capacity ≥ 130%.
1
In heating mode, fan speed is limited to L tap
when indoor units capacity ≥ 130%.
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
unit and the outdoor unit exceeds 131 ft. (40 m), the setting
[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
on page 12.
[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
unit and the outdoor unit exceeds 164 ft. (50 m), the setting
[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
on page 12.
[2-81]= Cooling comfort setting
Default value=1
Value
[2-81]
Cooling comfort setting
0
Eco
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
settings, see 15.3. Energy saving and optimum operation.
[2-82]= Heating comfort setting
Default value=1
Value
[2-82]
Heating comfort setting
0
Eco
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
settings, see 15.3. Energy saving and optimum operation.
[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).
•
[2-83]=1 Mini-split indoor unit has mode selection right
(default setting).
•
[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.
Several patterns are available and explained below. Modify the pa
-
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:
•
Basic
The refrigerant temperature is fixed independent from the situation.
It corresponds to the standard operation which is known and can be
expected from/under previous VRV systems:
•
To activate this operation method under cooling operation:
change field setting [2-8]=2.
•
To activate this operation method under heating operation:
change field setting [2-9]=6.
•
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).
E.g., when your system is operating in cooling, you do not need as
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
and increasing the system’s efficiency.
•
To activate this operation method under cooling operation:
change field setting [2-8]=0 (default).
E.g., when your system is operating in heating, you do not need as
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)).
