Free Cooling (Freecool, 10) - Siemens Desigo RXB Technical Manual

Technical manual
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Enable function
Start function
Terminate function
Enable function
Start function
Terminate function
108/140
Siemens
Building Technologies
Emergency Heat
Normal operation
The following condition must be fulfilled:
– The building temperature must be below the Risk of frost limit .
The function CANNOT be disabled in the room controller with ETS3.
The function must be enabled via the building automation and control system
(communication object Application mode , see page 105).
– The function is disabled via the building automation and control system.
– When the room temperature rises above the Protection setpoint.
10.12

Free cooling (Freecool, 10)

This function is used to cool rooms to the Comfort cooling setpoint prior to actual
occupancy. The chilled ceiling is used actively.
This is meaningful, however, only if cheap low-tariff energy is available.
During occupancy (room operating modes Comfort / Precomfort ) normal mode applies.
Y [%]
100
0
SpH
SpC
Cmf
The function can be disabled in the room controller via ETS3, together with precooling;
see central functions on page 100.
The function must be enabled via the building automation and control system
(communication object Application mode , see page 105).
The function is disabled via the building automation and control system.
RXB (KNX) Applications library
General / central functions
SpFr
SpH
Prt
TR
Cmf
CLC and RAD description of functions for CC-02 CM110384en_03
TR
28 Feb 2009

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This manual is also suitable for:

Desigo rxc, desigo rxb, desigo rxl, desigo rxa

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