Quarter -Turn Electric Valve Actuator【OM Series】 Sun Yeh Ele. Ind. Co., Ltd. | 2021.11
4.2 Valve Mounting Instructions
a. Make sure both the valve and actuator are in the same position before mounting, either
fully-open or fully-closed. If not, use the manual override to correct this.
b. Once mounted together, either directly or with a mounting kit, ensure that they are
properly secured together and all fasteners are tightened.
Remove all of valve handle parts, for example, the handle or open/close
mechanical stops so as to not interfere with the actuator.
c. Check again that the valve and actuator are in the same position.
d. Remove the conduit entry plug to relieve the pressure inside the actuator for the ease of
the top cover removal and gently remove the cover.
The power must be off before removing the cover.
e. Refer to section 4.3 (P.9) for wiring instructions and connect the wires according to the
wiring diagram labeled inside the cover of actuator.
Before operating a three-phase voltage actuator, please manually operate it to
mid-travel position by the handwheel and power up to check if it rotates
properly in order to verify the phase sequence is correct. If it is incorrect,
please correct the phase errors by changing the connection of any two of power
supply wires U, V, W to prevent the actuator from mechanical damages.
f. Supply power to actuator.
Care must be taken at all times as there are live circuits present that may cause
electrical shock.
g. Re-calibration may be required for the end positions, refer to 4.4 (P.10) for further
instructions.
h. For modulating units, refer to 6 (P.18 - P.39) setting instructions.
Use the insulated wires and length should be less than
30 m.
A minimum of 18 AWG wire is recommended for all field
wiring.
Turn power off before changing any settings.
i. Assemble the cover and secure cover screws firmly after setting.
Please ensure that the O-ring seal is in good condition prior to cover installation.
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