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After removing packaging, check for any damage on the appliance.
MAINTENANCE and REPAIRS
Periodically check the installation by inspecting the cables, springs, rods and
mechanical parts for wear or damage. Do not use if repair or adjustment is
required.
Disconnect the power supply during cleaning or maintenance operations.
Do not use solvents or jets of water to wash the appliance. The appliance
should not be submerged in water.
In the event of breakage or malfunction, switch the appliance off at the
general switch and call for the services of a qualified technician.
Repairs should only be performed by qualified personnel at assistance
centres authorised by the manufacturer.
Always request exclusive use of original spare parts. Failure to respect this
condition could compromise safety and invalidate the benefits contained in
the warranty for the appliance.
In the event of any problems or queries, consult your agent or contact the
manufacturer directly.
2. Technical operating information
The chain actuator is used to open and close the window by means of a three-link
steel chain
(Nekos Patent)
. The movement is achieved with very low-voltage (24V
SELV) electricity that powers a gear motor controlled by a functional electronic
device. Window opening can be programmed, and the device allows excursion of
the chain to strokes of 70, 125, 170 and 210 mm. For the return stroke, i.e., the
closing of the window, the stroke-end is determined by an electronic process that
automatically calculates the required power absorption to produce the movement of
the window, and therefore no settings are required. The actuator can also be
installed without the immediate availability of electricity for window movement; in this
case the actuator will simply hold the window closed after assembly. The structure of
the actuator is entirely metal and it is used for room ventilation. The coupling
between the actuator and support brackets fixed to the window frame is a quick-
connect coupling that allows the actuator to rotate in order to adapt to the stroke of
the chain, even on windows with reduced height. The brackets are fixed to the frame
during actuator assembly with just two screws. Combined with the
BK-LOCK
product and perimeter fittings, it constitutes the security lock that keeps the window
closed tight and guarantees a high thermal K.
3. Formulas and recommendations for installation
3.1.
Calculation of opening / closure force
Using the formulas on this page, approximate calculations can be made for the force
required to open or close the window considering all the factors that determine the
calculation.
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Symbols used for the calculation
F (Kg) = Force for opening or closing
P (Kg) =
Weight of the window (mobile sash only)
C (cm) = Opening stroke (actuator stroke)
H (cm) = Height of the mobile sash
For horizontal light domes or
skylights
F = 0,54 x P
(Eventual weight of snow or wind on the
cupola should be calculated separately)
.
For vertical windows
TOP HUNG WINDOWS
,
OUTWARD OPENING
(A)
BOTTOM HUNG WINDOWS
(B)
F = 0,54 x P x C : H
(Eventual load of favourable or unfavourable wind
on the sash should be calculated separately).
3.2.
Maximum opening based on sash height
The selection of the actuator stroke should be made based on the height of the sash
and its application. As a general rule, never select a stroke greater than the height of
the window frame; select the stroke directly below it.
W
ARNING
. The actuator is designed to be recess mounted on the window
frame. Check that during the stroke the chain does not touch the profile of
the sash, there are no obstacles to opening the window and the chain does
not push against the window frame.
4. Construction and regulatory references
INTENDED USE
The KIMO chain actuator is designed and built to open
and close top-hung windows opening outwards, bottom-hung windows or
up-and-over roof windows. Its use is specifically intended for ventilation, air
conditioning of rooms and, if used in combination with the BK-LOCK window
lock, also as a building security system; it is highly recommended that the
actuator not be used for any other purpose unless approved by the
manufacturer beforehand, with the supplier of the entire system in any case
retaining sole liability.
The actuator is manufactured in accordance with the EC Directives and
Regulations listed in the attached Declaration of Incorporation and
Conformity
.
