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2 Operation Manual
The cartridge re damper is ready for use when its blades are
open according to chapter 1.3 Adjusting the Damper into Opera-
ting Position. The blade position , if using a DV1 version, is indi-
cated by an end switch, which indicates the damper blades’ open
and closed position.
The microswitch contains three isolated wires (see Fig. 5) which
need to be led out of the duct through a hole drilled in the duct as
close to the microswitch as possible and near the wall, the hole
being secured with a rubber grommet.
3 Maintenance and Inspection Manual
The actuating mechanism keeps the dampers on stand-by mode
throughout their entire operational life. Without the producer’s per-
mission, there must be no changes or modications performed
on the dampers’ structure. The operator executes regular damper
checks according to the local laws and regulations. Unless stated
otherwise, the operator checks the damper every 12 months. The
check must be performed by an employee who has been trained
for this duty. The re damper condition determined by this check
is indicated in an operation journal (which is on page 7 of this
manual), along with the date of the check, a legible name and a
signature of the employee who had performed the check. A copy
of the employee’s authorization must be attached to the journal. If
any discrepancies are found, it is needed to enter the details about
them in the operation journal along with a proposal for their elimi-
nation and a date of the following revision. PKI-C is checked visu-
ally after having removed the disc valve from the duct end. If the
damper is installed in a duct crossing a re-proof wall, to access
the damper it is needed to disjoin the duct pipe near the wall, on
the side where the damper blades open. For this purpose it is con-
venient to use a exible coupling during installation – option „PS“,
according to the ordering code - which facilitates access inside the
damper. It is needed to check the damper’s internal casing, the
thermal fuse link, the sealing, the foaming substance, the damper
blade’s condition and its closure while it leans to a backstop in a
closed position. There must be no other objects or dirt from the
ventilation duct inside the damper. While performing the check,
also focus on the thermal fuse link’s integrity and a correct position
of the damper blades after their detention in the OPEN position –
they should be roughly parallel to the longitudinal axis of the duct.
Perform the damper activity check by taking off the thermal fuse
link and releasing the blades to spontaneously close them – the
damper blades are closed by a spring return release. The damper
must be completely closed – the blades must fall behind the detent
springs. If using the DV1 version, the blade’s position is indicated
by a connection of the respective circuit shown on Fig. 3.
After having checked that the sealing is intact and abuts against
the whole perimeter of the blade to the damper body, open the
blades again and detent them in the OPEN position using the ther-
mal fuse link. When opening the blades it is rst needed to push
the detent spring and use the hook attached to the opening of the
thermal fuse link’s holder to open the blade. Before opening the
second blade it is possible to secure the rst blade in the OPEN
position by inserting an appropriate object between the blade and
the damper body (this object must be removed after the thermal
fuse link is put on.
GB
In case of poor access when checking the damper functionality
by a complete closure of the blades (the damper is too small, the
duct pipe in the wall is too long...) it is possible to remove the dam-
per from the duct. Do so by either pulling it out of the duct while
holding it by its open blades, or it is needed to disjoin the pipe on
the other side of the wall as well and push the damper out of the
duct. If using an end switch signalising the damper blades’ closed
position, it is necessary to disconnect the switch wires from the
terminal outside of the duct and pull the wires into the duct before
detaching the damper itself. After doing this, it is possible to take
the damper out of the duct. When remounting the damper into the
duct it is also essential to check the exibility of the sealing on
the perimeter and in case it shows permanent deformation, it is
needed to replace the seal with a new one in order to guarantee a
correct xation of the damper in the duct.
Recommended Check Steps According to the EN 15 650
Regulation
1. date of inspection
2. check of the end switch’s connection for damage if applicable
3. check for damper cleanliness and cleaning if needed
4. check of the blades and sealing, correction and record if nee-
ded
5. check of re damper’s safe closure – for details please see the
previous section
6. check if the damper moves while being in its open and closed
position, correction and record if needed
7. check of the end switch indicating the open and closed positi-
on, correction and record if needed
8. check if the damper is moved in its standard position. The PKI-
C damper’s position is correct when, after the closure, the bla-
des are in between the planes forming the outside surface of
the wall – the ideal position is when the blade is in the middle
between these planes.
3.2.1 Replacement of the Thermal Fuse Link
When replacing the thermal fuse link it is necessary to follow the
instructions from 1.3 Adjusting the Damper into Operating Position
manual – take off the thermal fuse link and put on a new one.
1.4 Adjusting the Damper into Operating
Position (see Fig. 4)
1. Press both detent springs
2. Open the blades into a parallel position
3. Put on the thermal fuse link
Warranty conditions:
1. IMOS-Systemair s.r.o. provides warranty for all its PKI re
dampers. The warranty period is 24 months, starting on the
date of product shipment, by an exceptional agreement this
period can be up to 30 months, starting on the date of ship-
ment.
2. The product is tested in the production factory before the ship-
ment. The producer guarantees that the product features shall
be in accordance with the related technical standards during
the whole warranty period, assuming that the customer uses it
in a way that complies with the Operation manual. If, in spite of
this, any unpredictable production defects occur, the producer
shall secure their removal without charge.
3. The customer may apply for the warranty service only in writ-
ten form including serial number of the damper.
4. The warranty does not apply to defects caused by unprofessi-
onal handling, incorrect mounting, mechanical damage or not
following the instructions stated in the Operation manual.
5. The warranty period shall be prolonged for the same period of
time which has elapsed between the date when the customer
lodged the claim for warranty service and the date when the
repair was carried out.
