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3 Installing the controllers
3.1 Setting of Angle of Rotations and Limits
ASV305BF7XXXW controllers are manufactured for a damper or VAV Terminal box that rotates
from 0 to 90 degrees, open to close position. If the VAV box is not a 90-degree, then set the
rotation limits to its suitable degree before mounting the controllers.
3.1.1 Mechanical Limiting Angle of Rotation
Adjustment of mechanical limiter
1.
Loosen screw of mechanical limiter
2.
Move limiter to appropriate position *
3.
Tighten screw
* Working range of 90º can be reduced up to 30º from each end position
3.2 Mounting on A VAV Terminal Box
Mounting the controller inside the metal enclosure. To maintain the specifications of the wiring, its
recommended to use either shield cables or enclose all cables in the conduit.
Mount the controller directly over the shaft with a min. length of 45mm. The shaft dimensions must
be 06 to 15 mm if round and 5 to 10.5mm if square in shape.
Mount the controller as follows:
1.
Manually rotate the damper on the VAV box to fully open position.
2.
On the ASV305BF7XXXW controller, press the manual override button and rotate
the bolt in the same direction that opened the VAV box. Turn the angle of
rotation to its limit.
3.
Loosen the nuts and the U-bolt until the shaft can fit through the collar.
4.
Place the ASV305BF7XXXW controller over the shaft.
5.
Tighten the nuts on the U-bolt.
6.
Center the mounting point with our damper holder provided in the box and
screw the holder with the screw provided.
7.
Evenly tighten the U-bolt.
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