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InMax-...-CY
Special options
Important information for installation and operation
A. Installation, commissioning, maintenance
All national and international standards, rules and regulations must be complied with.
Apparatus must be installed in accordance with manufacturer instructions. If the equipment
is used in a manner not specified by the manufacturer, the safety protection provided by
the equipment may be impaired.
Attention: If the actuator is put out of operation all rules and regulations must be applied.
You have to cut the supply voltage before opening a terminal box !
The cable of the actuator must be installed in a fixed position and protected against
mechanical and thermical damage. Connect potential earth. Avoid temperature transfer
from armature to actuator ! Close all openings with min. IP66. For outdoor installation
a protective housing against sun, rain and snow should be applied to the actuator as
well as a constant supply at terminal 1 and 2 for the integrated heater. During commissioning
apply a self adjustment drive.
Actuators are maintenance free. An annual inspection is recommended. Actuators must
not be opened by the customer.
B. Manual override
Manual override only if supply voltage is cut. Use delivered socket wrench with slow
motions, usage can be tight. Attention: Releasing or letting go the Allen key too fast at
manual operating actuators with spring return causes risk of injury !
C. Shaft connection, selection of running time
Actuators are equipped with a direct coupling double square shaft connection of 12 × 12 mm.
For round shafts there are adaptors /clamping connection (as accessories, e.g. KB-S)
available. The housing of the actuator is built axially symmetrically to select Open-close
direction of the spring return function by left-right mounting. Using the 10-position switch
different motor running times and spring return running times can be selected on site in
acc. to the actuator type.
D. Spring return
Spring return function works only if the supply voltage for terminal 1 or 2 is cut. In the
event of an electrical interruption, the spring returns to its end position even if supply
voltage is available again during return function. Thereafter operation will continue.
Accessory InSwitch – adaptable auxiliary switch
For an end or inclined position indication it is possible to
retrofit external, adjustable auxiliary switches type InSwitch.
The switch housing is mounted directly to the actuator and
the switches are linked to the actuator's square connector.
The switches deliver a potential free output and can be
adjusted separately. They are connected by cable.
Schischek GmbH Germany, Muehlsteig 45, Gewerbegebiet Sued 5, 90579 Langenzenn, Tel. +49 9101 9081-0, Fax +49 9101 9081-77, E-Mail info-de@schischek.com
InMax-...-CYF
... -CTS
... -VAS
www.schischek.com
E X P L O S I O N P R O O F
E. Operation at ambient temperatures below −20 °C
All actuators are equipped with a regulated integrated heating device designed for
employments down to −40 °C ambient temperature. The heater will be supplied automatically
by connecting the constant voltage supply on the clamps 1 and 2.
1. After mounting the actuator must bei immediately electrically connected.
2. The heater switches on automatically when actuator reaches internally −20 °C. It
heats up the actuator to a proper working temperature, then heater switches off
automatically. Actuator will not run during heating process.
3. The adjustment options are only ensured after this heating up period.
F. Excess temperatures
All actuators are protected against excess temperature. The internal thermostat works
as a maximum limiter and, in the event of failure at incorrect temperatures, shuts off the
actuator irreversible. An upstream connected temperature sensor stops the actuator
before reaching its max. temperature. This safety feature is reversible, after cooling down
the actuator is completely functional again. In this case the failure must be eliminated
immediately on site !
G. Synchron mode
Do not connect several actuators to one shaft or link mechanically together.
H. Mechanical protection
Actuators must be operated with a minimum external load.
After installing the actuator to the damper/ armature a self adjustment drive has to be
performed in order to protect the damper / armature against mechanical overload.
During operation the actuator reduces briefly its speed (motor power) before reaching
the end position for a "gentle" blockade/ stop.
Extra information (see additional data sheet)
Additional technical information, dimensions, installation intruction, illustration
and failure indication
Accessory InBox – adaptable terminal box
For electrical connection of ...Max actuators a terminal
box is required.
InBoxes are appropriate terminal boxes and placed at the
disposal. To adapt the ...Box directly to the actuator hous-
ing a mounting bracket type MKK-S is required.
InBox- Y/S
for ...Max-...-CY and ...-CYF
InMax-S-CY_en
V04 – 8-Nov-2018
4 / 4
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