21
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Configuration
Installer and user reference guide
78
FXUA50~100AVEB
VRV system air conditioner
4P673843-1 – 2022.01
Setting: Thermostat differential changeover (if remote sensor is used)
If the system contains a remote sensor, set the increase/decrease increments.
If you want to change increments to…
Then
(1)
M
SW
—
1°C
12 (22)
2
01
0.5°C
02
Setting: Automatic changeover differential
Set the temperature difference between the cooling setpoint and the heating
setpoint in automatic mode (availability depends on the system type). The
differential is the cooling setpoint minus the heating setpoint.
If you want to set…
Then
(1)
Example
M
SW
—
0°C
12 (22)
4
01
cooling 24°C/heating 24°C
1°C
02
cooling 24°C/heating 23°C
2°C
03
cooling 24°C/heating 22°C
3°C
04
cooling 24°C/heating 21°C
4°C
05
cooling 24°C/heating 20°C
5°C
06
cooling 24°C/heating 19°C
6°C
07
cooling 24°C/heating 18°C
7°C
08
cooling 24°C/heating 17°C
Setting: Auto-restart after power failure
Depending on the needs of the user, you may disable/enable the automatic restart
after a power failure.
If you want auto-restart after power failure…
Then
(1)
M
SW
—
Disabled
12 (22)
5
01
Enabled
02
Setting: Air discharge direction
Proceed as follows to change the air discharge setting (2-way or 3-way discharge).
If you want to change the air discharge setting
to…
Then
(1)
M
SW
—
4-way
13 (23)
1
01
3-way
02
2-way
03
(1)
Field settings are defined as follows:
•
M
: Mode number –
First number
: for group of units –
Number between brackets
: for individual unit
•
SW
: Setting number
•
—: Value number
•
: Default
