Mounting instructions
All information and steps to properly prepare and mount the actuator are available in the mounting instructions 4 319 0108 0 (M4614) delivered with the actuator. The shaft adapter as well as all other individual parts are not pre-mounted, as the actuator components are put together differently depending on either clockwise or counter-clockwise rotation of the damper shaft and damper shaft length. Refer to 2.5 "Structure and design" in this chapter.
Mounting position
Choose the actuator's mounting position so that you can easily access the cables as well as the setting dials on the front of the actuator. Refer to 11.1 "Dimensions".
Mounting position in dependence of rotary direction
GMA12..1, 32..1, 13..1, 16..1: For mounting, turn the actuator by 180° depending on the necessary rotary direction. All setting and operator elements are available on both sides of the actuator, depending on clockwise or counter-clockwise rotation.
Device protection
To satisfy the IP54 protection class requirements, the following conditions must be fulfilled:
The actuators are equipped only for vertical mounting (cable entries at bottom) with air dampers having a horizontal shaft.
The actuator mounted on the damper shaft may be mounted by max. +/- 45° to the vertical line:
Use the weather protection cover ASK75.3 for any mounting position.
Mounting bracket
The mounting bracket (see dimensions) is required for mounting on the damper shaft. The insertion depth for the bolt into the housing must be sufficient and guaranteed.
Spring preload
The actuator comes with a factory-set spring preload of 5° which ensures a tight close-off for the air dampers.
Manual adjustment
Manual adjustment of the shaft adapter via hex wrench and gear train locking as per the mounting instructions.
To ensure a tight close-off function for the dampers and the exact switching position for switches A and B, the actuator can only be adjusted with a mounted shaft adapter and position indicator in accordance with the mounting instructions.
Mechanical limitation of rotary angle
If necessary, you can limit the rotary angle at increments of 5° for the entire span by positioning the shaft adapter in the respective position.
Damper shafts
Refer to chapter 8 "Technical data" for information on minimum length and diameter of the damper shafts.
Use of rotary/linear sets
Mount the mounting sets for converting a rotary movement to linear movement (chapter 2.2 "Type summary") as per the separate mounting instructions.
Tandem (Powerpack) mounting
When mounting two actuators on the same damper shaft (for GMA12..1, 32..1, 13..1,) use the ASK73.3 mounting bracket.