Assortment / System Description

Central applications
Automation station for emergency controls for HVAC, light, and blinds
24
256 | 275 A6V10866237_en--_b_08
In addition to HVAC emergency shutdown, all extract air VAV in the rooms can
be used to extract smoke with negative pressure via another digital command.
The command is executed at the highest priority and cannot be locally
overridden in the room or from another central operation.
HVAC devices can only be manually or automatically operated after this digital
command is reset.
All extract air VAV is controlled in the room to a configured air flow if the digital
command is activated for this type of HVAC smoke extraction. The value can be
configured separately for all extract VAV in the room:
Description Name Default value
Extract air VAV smoke control air volume flow
setpoint
VavExSpAflSmk 50 [m
3
/h]
29.4 [ft
3
/min]
13.89 [l/s]
The function offers a test parameters that supports tests emergency reactions
regardless of digital input conditions on the fixed wired interface.
Description Name Default value
HVAC emergency test
1:None
2:Air volume flow off
3:Smoke extraction positive pressure
4:Smoke extraction negative pressure
5:Purge
TstHvacEmg 1:None
NOTICE
This is not a safety function for extracting smoke from buildings
The function can only be used as a supplement to use the air supply system in
support of extracting smoke in the rooms with VAV extract air as long as the
associated components are still operational.
In addition to HVAC emergency shutdown, all supply air VAV in the rooms can
be used to extract smoke with positive pressure via another digital command.
The command is executed at the highest priority and cannot be locally
overridden in the room or from another central operation.
HVAC devices can only be manually or automatically operated after this digital
command is reset.
All supply air VAV is controlled in the room to a configured air flow if the digital
command is activated for this type of HVAC smoke extraction. The value can be
configured separately for all supply air VAV in the room:
Description Name Default value
Supply air VAV smoke control air volume flow
setpoint
VavSuSpAflSmk 50 [m
3
/h]
29.4 [ft
3
/min]
13.89 [l/s]
HVAC negative pressure
HVAC positive pressure