User Manual

Application Sheet CEN004
Central function emergency
DXR2..18-
101A
DXR2..18-
102A
2 / 4
Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2019-02-21
A6V10662238_en--_c_--_08
Emergency shading function
CenEmgShd11 Emergency shading function CenEmgShdDly Delays for the emergency shading f
CenEmgDetShd11 Emergency function to read the function
digital commands Shd11 Shading control in the rooms
Description of
functions
Basic function Options
∂ An HVAC emergency shut down can be triggered
during an emergency over a digital command for a
maximum of 2 supply groups. The commands are
executed at the highest priority and cannot be locally
overridden in the room or from another central
operation.
∂
The applicable electrical or mechanical installation can
only be manually or automatically operated after this
digital command is reset.
∂ The HVAC emergency shut down can be tested via a
test function.
∂ During an emergency, additional digital commands
can:
o generate HVAC negative pressure in the rooms.
This can support smoke extraction.
o generate HVAC positive pressure in the rooms.
This can support smoke extraction.
o generate HVAC purge in the rooms.
This can support smoke extraction.
o switch on all luminaires.
o move all facades to a configurable position.
Facade control can be enabled on 3 additional
groups with a delay on large buildings.
Variants
∂ A third-
party device can write the digital commands for
emergency forced control of HVAC, lighting, and
blinds via a BACnet reference.
Siemens devices Key Device Datasheet Product no. No.
DXR2… Compact room automation station, BACnet/IP, 24 V,
DIN housing, 2 DI, 4 UI, 8 DO Triacs, 4 AO 0…10 V
N9205
N9207
DXR2.E18-101A
DXR2.E18-102A
DXR2.M18-101A
DXR2.M18-102A
1
Third-party
devices
Key Device No.
D9 Digital contact for HVAC forced emergency shut down supply air
1
Optional third-
party device
Key Device No.
D7 Digital contact for forced emergency positioning for shading
1
D8 Digital contact for forced emergency positioning command for lighting
1
D10 Digital contact for HVAC forced smoke extraction (exhaust air)
1
D11 Digital contact for HVAC forced pressure build up (supply air) 1