25
THERMA V Split Type
Hydro Box Unit
10. Accessories
10.1 Dry Contact (PDRYCB500)
10.1.1 Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage. The
seriousness is classified by the followingindications.
WARNING
If the instructions are not followed, it may cause death or severe injury of the user.
CAUTION
If the instructions are not followed, it may cause injury of the user or property damage.
Meanings of symbols used in this manual are as shown below.
10.1.2 Specification
Modbus configuration
• Network : 2 wire RS485
• Mode : Modbus RTU slave
• Baud : 9600
• Parity : None
• Stop bits : 1
• Register Base : 0
Data registers
Be sure not to do.
Be sure to follow the instruction.
Register Name Range Notes
1 Operation 0 ~ 1
0 : Stop
1 : Run
30003 Indoor temperature 100 ~ 400 Degrees C × 10
30100 Error alarm 0 ~ 1 0 : No Error 1 : Error
40001 Set Run Mode 0 ~ 4
0 : Cooling
2 : Fan
3 : AI
4 : Heating
40002 Set Temperature 180 ~ 300 Degrees C × 10
40015 Set Fan Speed 1 ~ 3
1 : Low
2 : Middle
3 : High
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