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5. Operation
Unit types to be connected to KNX001 are Packaged and Chiller. It is not allowed to connect both types simultaneously. Maximum
Packaged units supported are 128 indoor units. In case of Chiller, maximum number are 8 Chillers.
These two tipes of units require different signals in interface. Next table shows signals for each type of unit.
Packaged
Name
OnOff
Mode
Fan
TempSet
Louver
Central
TIn
TOut
TGas
TLiquid
ErrorCode
StopCause
ValveOpen
OperCondition
Defrost
ExtAmbTemp
Timer
Error Comunicación
PMML0137A rev0 - 06/2008
On/Off setting order
Read/Write: ON,OFF
Mode Setting order
Read/Write: COOL, DRY, FAN, HEAT, AUTO
Fan Setting order
Read/Write: LOW, MED, HIGH
Setting Temperature
Read/Write: 17ºC ~ 30ºC
Louver Setting
Read/Write: 8 positions: 0 ~ 7 and AUTO
Central Setting
Read/Write: OnOff, Mode, TempSet, Fan
Inlet Temperature
Read: ºC
Outlet Temperature
Read: ºC
Gas Pipe Temperature
Read: ºC
Liquid Pipe Temperature
Read: ºC
Alarm Code
Read: 0 ~ 100
Compressor Stop Cause
Read: 0 ~ 200
Indoor Unit Expansion Valve Opening
Read: 0 ~ 100
Unit Operation Condition
Read: OFF, THERMO-ON, THERMO-OFF, ALARM
Defrost
Read: On, Off
Ambient Temperature
Read: ºC
Timer disabled
Read/Write: Enabled/Disabled
Error Comunication Unit
It's a signal generated to indicate that the machine is not set into CSNET WEB.
KNX001 - Installation Manual
Description/State
13
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