20 | Configuration
Installer and user reference guide
68
FXMQ-A
VRV system air conditioner
4P701548-1 – 2022.07
When the remote controller thermostat sensor
is…
Then
(1)
M SW —
Used in combination with indoor unit thermistor 10 (20) 2 01
Not used (indoor unit thermistor only) 02
Used exclusively 03
Setting: Thermostat sensor in group control
This setting must correspond with how/if the remote controller thermostat sensor
is used in group control.
If you want to use… Then
(1)
M SW —
Unit sensor only (or remote sensor (if installed))
(a)
10 (20) 6 01
Unit sensor (or remote sensor (if installed)) AND
remote controller sensor
(b)(c)
02
(a)
If setting 10(20)-6-01 + 10(20)-2-01 or 10(20)-2-02 or 10(20)-2-03 are set at the same
time, then setting for group connection: 10(20)-6-01 has priority.
(b)
If setting 10(20)-6-02 + 10(20)-2-01 or 10(20)-2-02 or 10(20)-2-03 are set at the same
time, then setting 10(20)-2-01 or 10(20)-2-02 or 10(20)-2-03 have priority.
(c)
When the remote controller sensor is used in group control, set 10(20)-6-02 and
10(20)-2-03.
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: Differential for automatic changeover
Set temperature difference between cooling setpoint and heating setpoint in
automatic mode (availability depends on the system type). Differential is cooling
setpoint minus 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
(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
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