Installation & Operation Manual
ECON actuator Fig. 7917EX, type ELSA50 – 260
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Rev. 0 – April 10
th
, 2019
15
Adjust FULLY-OPEN (spring compressed) stop point. Follow the steps below:
a. Apply power to drive the actuator to its fully-open (spring compressed) position. If the
open stop point is not aligned with the valve or damper properly, then it must be adjusted.
b. Turn the power off and let the spring unit drive the actuator back to its fully-closed (spring
released) position.
c. If it is required to adjust, loosen the cap screw of cam TC1 with a 2.5m hex key.
To increase the opening angle, turn the cam clockwise.
To decrease the opening angle, turn the cam counter-clockwise.
【
ELSA50
】
【
ELSA130 up to ELSA260
】
d. After adjusting the cam, apply power to drive the actuator to the fully-open position.
e. Verify that it is in the correct fully-open position.
If it is in correct position, turn the power supply off and lock the cap bolt of cam TC1
If it is not in the correct position, repeat step
C
until the correct position is reached.
f. If auxiliary switches will be used for feedback, cams TC3 and TC4 need to be calibrated.
Adjust cam TC3 so it trips just before cam TC1 does.
Adjust cam TC4 so it trips just before cam TC2 does.
增加角度
Decrease the
opening angle
Increase the opening
angle
Decrease the
opening angle
Increase the opening
angle
ELSA50
ELSA130, ELSA200 and ELSA260