Install Instructions

VA9208-GGx-x Series Proportional Electric Spring Return Valve Actuators Installation Instructions8
3. Mount the thermal barrier onto the valve using the
four included M5x16 mm machine screws and four
M5 flange nuts. Tighten the screws to a
recommended torque of 21 to 25 lb·in.
(2.4 to 2.8 N·m).(Figure 18).
4. Proceed to actuator mounting instructions. Follow
the same steps as mounting directly to the valve
when mounting the actuator to the thermal barrier.
Manual Override
Use only the supplied manual override crank to
reposition the actuator hub when using the manual
override feature.
To reposition the actuator hub, proceed as follows:
1. De-energize the actuator.
2. Insert the hex end of the manual override crank
into the manual override adjustment point on the
face of the actuator.
3. Rotate the manual override crank in the direction
indicated by the arrow on the label.
4. The actuator requires 8-1/2 manual override crank
rotations from the full spring return position to fully
reposition the actuator hub. At the end of travel, the
rotation resistance increases. Do not force the
manual crank past this point.
5. While holding the manual crank in the wound
position, rotate and hold the red lock shaft
approximately 10° then release the manual crank
to lock the actuator hub in place.
Note: Insert and slightly rotate the manual crank
in the direction indicated by the arrow on the label
to unlock the actuator hub. Alternately, the actuator
hub automatically unlocks when power is applied
to the actuator, and returns the actuator to normal
drive and spring return operation.
Wiring
IMPORTANT: Applying excessive torque to the
manual override or operating the manual override
with a power tool may damage the internal
components of the actuator and cause premature
failure.
Figure 18: Installing the Barrier
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WARNING: Risk of Electric Shock.
Disconnect or isolate all power supplies
before making electrical connections.
More than one disconnect or isolation
may be required to completely
de-energize equipment. Contact with
components carrying hazardous voltage
can cause electric shock and may result
in severe personal injury or death.
!
CAUTION: Risk of Property Damage.
Do not apply power to the system before
checking all wiring connections. Short
circuited or improperly connected wires
may result in permanent damage to the
equipment.
!
CAUTION: Risk of Property Damage.
Insulate and secure each unused wire
lead before applying power to the
actuator. Failure to insulate and secure
each unused wire lead may result in
property damage.
IMPORTANT: Make all wiring connections in
accordance with the National Electrical Code and
local regulations. Use proper Electrostatic Discharge
(ESD) precautions during installation and servicing
to avoid damaging the electronic circuits of the
actuator.