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unit and the outdoor unit exceeds 130 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. System piping (length) limitations 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. System piping (length) limitations on page 12.
[2-62]= Cooling and heating capacity learning control
Default value=0.
Value
[2-62]
Description
0
OFF (default)
1
Cooling adjustment
2
Heating adjustment
3
Cooling and heating adjustment
Adjust cooling and heating system operation to achieve
stable capacity.
Note: This setting may result in a longer reaction time to
large load variations.
[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 effect of these
settings, see 15.3. Energy saving and optimum operation on
page 41.
[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 effect of these
settings, see 15.3. Energy saving and optimum operation on
page 41.
[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.
[2-87]= Intermittent fan operation
Default value=0.
Value
[2-87]
Intermittent fan operation
0
OFF (default)
1
30 minutes OFF, 1 minute ON
with medium fan speed
2
30 minutes OFF, 1 minute ON
with high fan speed
Outdoor fan speed would be increased for assisting to
discharge snow on outdoor fan when outdoor fan is stop or
low speed.
15.2.3. Auxiliary heat control
To improve efficiency the AUX heat can be lockout based on outdoor
temperature.
Item
Description
Min
Max
Increments
AUX Heater
Allowable
Temp
Below this tempera-
ture, AUX heater can
be energized based
on the indoor tempera-
ture condition.
0°F
(-17.7°C)
65°F
(18.3°C)*1
5°F
(2.8°C)
AUX Heater
Allowable temp
Release
differential
When the outdoor
temp recovered by
this temp, AUX heater
cannot be allowed.
5°F (2.8°C)
10°F (5.6°C)*2
15°F (8.3°C)
*1 Default=35°F (1.66°C)
*2 Default
[2-50]= AUX heater max allowable temp
AUX Heater is allowed to energize when the ambient temp is
smaller than the AUX Heater Max Allowable Temp.
Value
[2-50]
Fahrenheit (
°F)
Celsius (
°C)
0
0
− 17.7
1
5
− 15
2
10
− 12.2
3
15
− 9.4
4
20
− 6.6
5
25
− 3.8
6
30
− 1.1
7
35 (default)
1.6 (default)
8
40
4.4
9
45
7.2
10
50
10
11
55
12.7
12
60
15.5
13
65
18.3
14
AUX Heater always NOT allowed
15
AUX Heater always allowed
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