8
PB_VA-7700_Electricl Valve Actuators_02 2011
Mounting■instructions
When mounting the actuator on a valve, please follow the
instructions below:
• It is recommended that the valves be mounted upright or at
angles not greater than 90° in an easily accessible location.
• The actuator must be protected against dripping water, which
could enter the housing and damage the mechanism or motor.
• Do not cover with insulating material.
• Sufficient clearance must be allowed for actuator removal (refer
to the dimension drawings).
• The valve must be installed so that the plug seats against the
flow, as indicated by the arrows on the valve.
WARNING:■These■actuators■are■intended■to■
control■equipment■under■normal■operating■
conditions.■Where■failure■or■malfunction■of■the■
actuator■could■lead■to■an■abnormal■operating■
condition■that■could■cause■personal■injury■or■
damage■to■the■equipment■or■other■property,■
other■devices■(limit■or■safety■controls)■or■
systems■(alarm■or■supervisory■systems)■
intended■to■warn■of■or■protect■against■failure■
or■malfunction■of■the■actuator■must■be■
incorporated■into■and■maintained■as■part■of■the■
control■system.
Wiring■instructions
• All wiring must be in accordance with local regulations
and national electrical codes and should be carried out by
authorised personnel only.
• Make sure that the line power supply is in accordance with the
power supply specified on the device.
• See also the instructions in paragraph “Application”.
WARNING:■■
Shock■Hazard
•
Disconnect■the■power■supply■before■wiring■
connections■are■made■to■prevent■personal■
injury.
Equipment■Damage■Hazard
•
Make■and■check■all■wiring■connections■before■
applying■power■to■the■system.■Short■circuited■
or■improperly■connected■wires■may■result■in■
permanent■damage■to■the■unit.