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O
M
PERATION VIA
ODBUS
REGISTER ADDRESS
337
435
*ro = read only (read only)
*rw = read & write (read and write)
V
O
ALUE
PTION
30
Smoke extraction
31
Fire mode
40
Smoke alarm
41
Fire alarm
REGISTER ADDRESS
221
*ro = read only (read only)
*rw = read & write (read and write)
en-46
DESCRIPTION
Alarm functions
(activated by input 1 (i1) or by
register address 435)
Activate alarm functions (regis-
ter address 337)
0 = inactive
1 = active
DESCRIPTION
Current mode operation
/
*
RO
RW
UNIT
MINIMUM
rw
-
0
rw
-
0
337 Alarm functions
D
ESCRIPTION
When the contact is closed:
• air is extracted (maximum fan speed).
• no air is supplied.
• an alarm signal (smoke) is sent to the building manage-
ment system.
When the contact is closed:
• the unit is switched off.
• any air dampers are closed.
• an alarm signal (fire) is sent to the building management
system.
When the contact is closed:
• an alarm signal (smoke) is sent to the building manage-
ment system.
When the contact is closed:
• an alarm signal (fire) is sent to the building management
system.
4.1.7 Reading out current operation
The current operation of the unit can be read out in register
address 221.
/
*
RO
RW
UNIT
MINIMUM
ro
-
01
H
EAT RECOVERY UNIT
MAXIMUM DEFAULT
41
0
1
0
MAXIMUM DEFAULT
51
-
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