Fire-resistant damper model BKA-Ü
Technical documentation
Commissioning and maintenance
Construction subject to change
No return possible
Version: 2021-07-01 | Page 34
COMMISSIONING AND MAINTENANCE
COMMISSIONING
Before the fire-resistant damper is put into operation for the
first time, it must undergo an inspection in order to deter-
mine and assess the installation and function (see model pro-
tocol, page 36 f.).
FUNCTIONAL CHECKING, CLEANING, REPAIR
The owner or operator of the system must arrange for its
function to be checked. The inspection must be carried out at
least every six months. If two successive functional tests at in-
tervals of half a year do not reveal any defects, the interval
may be increased to one year.
The following standards describe the basic maintenance
measures and are generally to be taken into account:
-
EN 13306
-
DIN 31051
-
EN 15423
In addition, any possible national or building code regulations
regarding the safe operation must be observed.
Observe the notes in the general type approval (aBG) no.
Z-6.50-2012 section 3.
1. Electric spring return actuator
1.1. Visual inspection
Check BKA-Ü for damage and contamination.
Perform necessary cleaning work.
1.2 Thermoelectric trigger
–
Closing BKA-Ü
Press switch (pos. 5.2) on the thermoelectric release
device (pos. 5.1), thus, removing the electric power
from the spring return actuator (pos. 5) (alterna-
tively: interrupt on-site power supply).
BKA-Ü must close automatically, locking is per-
formed by blocking the spring return actuator.
1.3 Replacement of the thermoelectric
trigger device (if necessary)
Exchange takes place by unscrewing the two screws
of the thermoelectric trigger device (pos. 5.1).
Remove the thermoelectric release device from the
actuator unit. Remove the internal duct tempera-
ture fuse (pos. 5.3) from the thermoelectric trigger
device and replace it with a new internal duct tem-
perature fuse (ZBAT72). Screw the thermo-electric
trigger device back onto the actuator unit. Carry out
a functional check
Figure 42: Side view BKA-Ü (spring return actuator)
Figure 43: Front view BKA-Ü (spring return actuator)
