Group Objects - Zehnder ComfoConnect KNX C Manuel D'utilisation

6.1 Group Objects

The group objects that are indicated with '(set)' are write-only objects to control the ComfoConnect KNX C and/or
the ventilation unit. All other objects (without '(set)') are read-only objects to retrieve the current value. The default
flags of the write-only objects are C-WTUI and the default flags for read-only objects are CR-T--.
When the I (Read On Init) flag is set, also set the T (Transmit) flag.
Object
Ventilation Preset 1
Ventilation Preset 1 (set)
Ventilation Preset Away
Ventilation Preset 1
Ventilation Preset 2
Ventilation Preset 3
Ventilation Preset Away (set)
Ventilation Preset 1 (set)
Ventilation Preset 2 (set)
Ventilation Preset 3 (set)
Auto mode
Auto mode (set)
Temperature profile mode 1
Temperature profile mode 1
(set)
Temperature profile 1
Temperature profile 1 (set)
External setpoint
External setpoint (set)
Boost 1
Boost 1 (set)
Boost time
Boost time (set)
Away function 1
Away function 1 (set)
ComfoCool 1
ComfoCool 1 (set)
Standby
ComfoHood 1
Airflow 1
1 Refer to the manual of the ventilation unit for a description of this functionality.
2 When multiple types are indicated, the actual type can be configured by a parameter. See chapter 'Parameters'
18 - EN
Description
� 0: Lowest ventilation preset; implies that Away function is enabled;
� 1, 2, 3: Ventilation preset; implies that Away function is disabled.
Enabled/triggered when Ventilation Preset is (set to) 0.
Enabled/triggered when Ventilation Preset is (set to) 1.
Enabled/triggered when Ventilation Preset is (set to) 2.
Enabled/triggered when Ventilation Preset is (set to) 3.
Sets Ventilation Preset to 0.
Sets Ventilation Preset to 1.
Sets Ventilation Preset to 2.
Sets Ventilation Preset to 3.
� Disable: Manual mode;
� Enable: Auto mode.
� 0: adaptive 1 ;
� 1: fixed 1 ;
� 2: use the External setpoint object to control the temperature setpoint of the ventilation unit,
instead of using the Temperature profile.
� 0: normal profile;
� 1: cool profile;
� 2: warm profile.
Setting the Temperature profile only has effect when Temperature profile mode is set to 0 or 1.
Temperature setpoint of the air within the building (=the temperature of the extract air or the value
measured by a room temperature sensor if available). The ventilation unit may preheat or temper
the air in order to reach the specified setpoint.
Setting the External setpoint only has effect when Temperature profile mode is set to 2.
� Off: normal;
� On: boost enabled (implies that Ventilation Preset is 3).
When triggered, Boost is enabled for the time specified by Boost time.
Boost time in seconds.
The value 65535 s (about 18.2 hours) is interpreted as 24 hours. This object is only used to
configure the Boost upon triggering; it does not indicate the remaining time Boost is on.
� Off: implies a Ventilation preset of 1 or higher;
� On: implies a Ventilation preset of 0, and ComfoCool is off.
Off: the ComfoCool is always off, regardless of the required temperature setpoint;
On: let the ventilation unit decide whether the ComfoCool has to be enabled.
Off: normal operation;
On: the ventilation unit is in service mode; ventilation may be suspended.
Current state of the ComfoHood.
Reflects the supply air fan of the ventilation unit. (FAN_SUP)
Type 2
5.010
1.001
1.017
1.001
1.017
1.003
5.010
5.010
5.001
9.001
9.002
9.027
1.001
1.017
7.005
1.001
1.001
1.001
1.001
5.001
9.025
13.002