Control and monitoring items
Item Function Description
Indoor unit
control
(Individual/Batch)
On/Off Command*
1
Start/Stop operation
Operation mode setting Cooling/Heating/Auto/Fan/Dry
Temperature setting Set room temperature
Airflow mode setting Set airflow
Set point temperature limit Setting
Set room temperature lower limit & room
temperature upper limit
Thermostat off setting*
1
*
2
Thermostat off (Only one controller in VRF
network system can do this.)
Centrally control (Filter reset) Prohibition of filter sign reset of remote controller
Centrally control (All mode) Prohibition of all mode of remote controller
Centrally control (Timer mode) Prohibition of timer mode of remote controller
Centrally control (Set temperature mode)
Prohibition of set temperature mode of remote
controller
Centrally control (On/Off mode) Prohibition of On/Off mode of remote controller
Centrally control (On mode) Prohibition of On mode of remote controller
Centrally control (Operation mode) Prohibition of operation mode of remote control
Indoor unit
control
(Individual)
Filter sign reset Set filter sign reset command
Anti-freeze setting Set anti-freeze command
Energy save mode setting Set energy save command
Vertical/Horizontal airflow direction
louver
Set Vertical/Horizontal airflow direction louver
Test run Test run
Indoor unit
control
(Batch)
Time setting
Set time setting command (The controllers those
are connected in VRF network system are an
object.)
Emergency stop setting Set emergency stop command
Outdoor unit
control
(Individual)
Outdoor unit low noise Outdoor unit low noise level setting
Outdoor unit capacity save Outdoor unit capacity save setting
Indoor unit
monitoring
(Individual)
On/Off Status*
1
The indoor unit which is now operating can be
monitored in all indoor units
Operation mode setting status Cooling/Heating/Auto/Fan/Dry mode status
Temperature setting status Room set temperature status
Airflow mode setting status Airflow mode status
Set point temperature limit status Room set temperature limit status
Thermostat off setting status*
1
*
2
Thermostat off set value status
Centrally control (Filter reset) status Remote controller filter reset prohibition status
Centrally control (All mode) status Remote controller all mode prohibition status
Centrally control (Timer mode) status Remote controller timer mode prohibition status
Centrally control (Set temperature)
status
Remote controller set temp. prohibition status
Centrally control (On/Off) status Remote controller On/Off prohibition status
Centrally control (On) status Remote controller On prohibition status
Centrally control (Operation) status Remote controller operation prohibition status
Anti-freeze setting status Anti-freeze set status
Energy save mode setting status Energy save mode set status
Filter sign reset status Filter sign reset status
Room temperature status Room temperature status
Error code status Error code status can be monitored.
Vertical/Horizontal airflow direction
louver status
Vertical/Horizontal airflow direction louver status
Indoor unit status
Defrost/oil recovery/pump down can be
monitored.
Test run Test run
3-7. Modbus converter for VRF (UTY-VMGX) - (05-156) - 3. Adaptor/Convertor units
CONTROL
SYSTEM
CONTROL
SYSTEM
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