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Trouble shooting:
Fault
Possible problem
Recommended action
Control Mode does not fit to
damper drive shaft when
Control Mode is correctly
positioned
Damper shaft not in ‘damper
closed’ position
Damper shaft has an ‘indication
groove’ which is parallel to damper
blades. Damper must be in closed
position before fitting Control mode.
Control Mode does not
operate electrically
ExPro not correctly fitted
Refer to Page 3.
Mode wired incorrectly / No power
Refer to above wiring diagram
STS activated
Replace STS.
Control Mode operated, but
limited or no movement of
damper blades evident
Damper/Control Mode positions not
synchronised
Remove Control Mode. Check
damper closed (see indication
Groove on damper shaft), and
Control Mode released. Refit Control
Mode.
Obstruction impeding damper
blade
Check visually, remove obstruction.
If necessary, remove Control Mode
and operate damper drive shaft with
14mm A/F spanner.
Over tightening of M5 x 80mm
screw. (3 position only)
Loosen screw to 5Nm torque.
To isolate from main power supply, the system must incorporate a device, which disconnects the phase
conductors, with at least 3mm contact gap.
Special Conditions of Safe Use
1.
The associated spring return failsafe actuator must be suitably rated ATEX certified for the hazardous
atmosphere into which it is to be installed.
2.
The equipment must be suitably bonded to a common earth point and continuity to be checked upon
installation.
3.
The equipment must not be subjected to charging mechanisms stronger than manual rubbing.
4.
The minimum ignition energy of dust atmospheres into which the equipment is installed is to be >1mJ
Please refer to Schischek data sheets or website for further information
LNNN00315 – REV 5
Swegon Air
Management are
ISO9001 & ISO
14001 certified
