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ABB i-bus KNX
3.2.3.2
HVAC-System –
1 Control value/4-pipe,
with switching object
© 2010 ABB STOTZ-KONTAKT GmbH
Commissioning
If option 1 Control value/4-pipe, with switching object is selected,
additional parameters appear:
Toggle via separate object
This parameter serves as a note or remark.
Valve HEATING/COOLING
Using communication object Control value HEATING/COOLING,
the valves HEATING/COOLING and the fans are controlled.
Toggle between HEATING and COOLING is implemented via the
communication object Toggle HEATING/COOLING.
The corresponding inactive/non-actuated valve is thus automatically
closed when toggled.
For further information see:
page 124
Operation HEAT/COOL after
bus voltage recovery
Options:
unchanged
HEATING
COOLING
Using this parameter the reaction after bus voltage recovery is set.
unchanged: After bus voltage recovery the state which existed before
bus voltage failure is set.
HEATING: After bus voltage recovery the HEATING state is set.
COOLING: After bus voltage recovery the COOLING state is set.
Object value for HEATING the object
"Toggle HEATING/COOLING"
Options:
1
0
With this parameter you set the object value used to toggle between
HEATING and COOLING.
1: As soon as a telegram with the value 1 is received,
HEATING is activated and COOLING is deactivated.
0: As soon as a telegram with the value 0 is received,
HEATING is activated and COOLING is deactivated.
Design of a HVAC system with Fan Coil
Units,
30
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