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7 .3 Installation
Installation position of actuators IC 20, IC 40:
vertical or horizontal, not upside down.
If the actuator is used with hot air, the pipeline
should be adequately insulated so as to reduce
the ambient temperature. Important! In order to
avoid over-heating, the flanges and butterfly valve
must not be insulated.
In conjunction with butterfly valves BVH, BVHS, the
actuator can be used in temperatures of up to
250°C, with additional heat deflectors it can be
used in temperatures of up to 450°C, see page 74
(Accessories).In order to mount the actuator onto
control elements other than DKL, DKG, BVA, BVAF,
BVG, BVGF, BVH, BVHS or VFC, the attachment set
for “single application” is required, see page 74
(Accessories).
7 .4 IC 40 commissioning
When mains power is connected, the actuator IC
40 conducts a zero position check. To do this, the
actuator opens the control element to approx. 30°.
Then the actuator moves to the position specified
by the operating mode and input signals.