WE/XE/SE/XC Series
Quarter-Turn Electric Actuator
Installation & Maintenance Manual
7
12/17/19
www.atcontrols.com
IOM8011 REVISION 01
Manual Operation Handwheel
Actuators are provided with a declutchable manual
override system to allow operation without electrical
power. To operate manually, pull the lever towards the
handwheel to engage the manual override. If the lever
does not remain engaged, pull the lever while turning the
handwheel.
Actuator rotation direction is cast on the handwheel.
Rotating handwheel in the identified direction will rotate
the actuator output as follows.
Close = Clockwise
Open = Counter-clockwise
The manual override will automatically disengage when
electric power is applied, and motor begins to rotate.
CAUTION:
o
Do not use excessive amount of pull force
when turning the handwheel.
o
Do not pull or force the lever to disengage the
manual override. Only use an electrical
control signal to disengage the manual
override lever. Forcing the lever to disengage
can damage the internal lever shear pins.
Space Heater
Condensation may form in the actuator due to change in
ambient temperature. Powering the internal space
heater will help prevent this. Standard heaters are
ceramic with thermostat to prevent over heating above
140°F (60°C).
Actuator Size
Voltage
Heater
-690
110VAC
220VAC
24VDC
12VDC
5W, 4.5kΩ
5W, 18kΩ
5W, 200Ω
5W, 47Ω
-1350 to -25900
110VAC
220VAC
24VDC
12VDC
10W, 2kΩ
10W, 8kΩ
10W, 100Ω
10W, 27Ω
5. Installation
Pre-Installation
Check actuator nameplate to ensure correct model,
torque output, operating speed, voltage and enclosure
type before installation or use. It is important to verify the
torque output of the actuator is appropriate for the torque
requirements of the valve and that the duty cycle of the
actuator is appropriate for the intended application.
WARNING:
o
The actuator generates a large mechanical
force during normal operation.
o
Installation, commissioning, maintenance
and repairs must only be performed by
qualified personnel with extensive
knowledge on working with electrical
equipment according to enclosure ratings.
o
Any modification to actuators is prohibited
as it may change enclosure ratings.
Tools
Metric Hex Wrench Set
Metric Combination Wrench Set
Flat-Head Screwdriver (1/8” or 3mm)
Wire Stripper
Multimeter
