Fire / Smoke / Emergency Off - Siemens Climatix S300 HRV Application Manual

5.19.2 Fire / smoke / emergency off

Available parameters
A6V10733786_en_c
Configured binary input: Smoke extract
Within first phase of a fire situation, it can be assumed that ventilation may be used
to help the prevailing situation, thus functionality is different from temperature
driven fire alarm coming from temperature measurement, fire damper indication, or
dedicated emergency off signal.
Depending on the requirements, ventilation unit can be set to react on an active
signal 4 different ways:
● Both fans would be switched to 100% speed in case of active alarm, fire
dampers remain open.
● Both fans would be switched to 0% speed in case of active alarm, fire damper
is closed.
● Supply fan would be switched to 100% speed and exhaust fan to 0% speed.
● Supply fan would be switched to 0% speed and exhaust fan to 100% speed.
Configured binary input: Emergency off
● Switches off both fans and closes the outside air dampers immediately.
Since ventilation operation is a reaction to A-Alarm situation, the defined function
will only be stopped after A-Alarm is reset and acknowledged. Or the controlling
components are destroyed.
Current values
Fire/smoke alarm status
Emergency off status
Basic settings
Smoke extract plant operation
Application functionalities
Safety functions (SftyCtl11y)
BACnet object
Smext
BI,81 (D1)
BI,98 (D2)
BI,115 (X3)
BI,132 (X8)
EmgOff
BI,80 (D1)
BI,97 (D2)
BI,114 (X3)
BI,131 (X8)
BACnet object R/RW
SmextMod RW
MVAL,125
5
R/RW Note
R Reaction as
configured in
SmextMod
R Plant shutdown
Note
1: Both fans 100%
2: Both fans 0%
3: Supply 100%, exhaust 0%
4: Supply 0%, exhaust 100%
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