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VA-247P Series
Electromotive Valve Actuator For Use with 2-1/2-Inch to 6-Inch Pressure
Independent Control Valves
Figure 1:
VA-247P Series electromotive valve actuator.
Product Description
This document describes the hardware installation procedures for the
following VA-247P Series zone valve actuators:
PICV
VA-247PSO024M
Normally-Open, 24V, Floating (3-Position) and
Proportional 0-10V or 4-20mA
PICV
VA-247PSC024M
Normally-Closed, 24V, Floating (3-Position)
and Proportional 0-10V or 4-20mA
The VA-247P Series spring return (fail-safe) actuator requires a 24 volt
power supply and a 0 to 10 Vdc, 4-20mA or floating control signal to
control the Pressure Independent Control series valve with 3/4-inch to 1-
1/2-inch (20 to 40 mm) stroke.
General Installation Requirements
For proper installation and subsequent operation of each actuator, pay
special attention to the following recommendations:
-
Upon unpacking the product, inspect the contents of the carton for
shipping damages. Do not install damaged actuators.
-
Avoid areas where corroding, deteriorating or explosive vapors,
fumes or gases may be present.
-
Ensure that all equipment is installed according to local, regional,
and national regulations.
Personal injury or loss of life may occur if you do not follow a
procedure as specified.
Equipment damage or loss of data may occur if you do not
follow a procedure as specified.
Actuator,
247lb.,
Spring
Actuator,
247lb.,
Spring
H a r d w a r e I n s t a l l a t i o n G u i d e
Take reasonable precautions to prevent electrostatic
discharges to the controller when installing, servicing or
operating the controller. Discharge accumulated static
electricity by touching one's hand to a well-grounded object
before working with the controller.
Return,
Mounting Instructions
Required Tools
Return,
-
2.5 mm and 6 mm hex key
-
3/16" flat-blade screwdriver or T15 Torx driver (to remove wiring
compartment cover)
-
Small, flat-blade screwdriver (for wiring terminal block)
Estimated Installation Time
-
20 to 30 minutes
Prerequisites
Allowed wire size: 16 to 20 AWG.
Figure 2: Acceptable mounting positions.
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Table of Contents
Related Manuals for Distech Controls VA-247P Series
Summary of Contents for Distech Controls VA-247P Series
- Page 1 3/16” flat-blade screwdriver or T15 Torx driver (to remove wiring compartment cover) Small, flat-blade screwdriver (for wiring terminal block) The VA-247P Series spring return (fail-safe) actuator requires a 24 volt power supply and a 0 to 10 Vdc, 4-20mA or floating control signal to Estimated Installation Time...
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Page 2: Installation
This device complies with part 15 of the FCC Rules. Risk of injury due to fingers being trapped or pinched. Avoid Operation is subject to the following two conditions: (1) This contact with moving parts. device may not cause harmful interference, and (2) this device must accept any interference received, including To engage the manual override crank, pull back the crank arm from interference that may cause undesired operation. -
Page 3: Dip Switches
Slide the anti-rotation device over the valve stem to a position DIP Switches approximately mid-way between the flats on the valve stem and the stem connection feature. See Figure 9. Factory setting Figure 9: Anti-rotation device placement. Use a 2.5 mm hex wrench to tighten the anti-rotation device set screw to 35 to 62 in-lbs (4 to 7 Nm). -
Page 4: Automatic Self-Calibration
Automatic Self-Calibration Operation When power is applied to the actuator for the first time, self-calibration takes place. During this process, both LEDs on the drive flash in red. The stem extends until it reaches the lower mechanical stop in the valve. -
Page 5: Spring Return
While pushing up on the actuator’s stem connector, turn the crank Spring Return arm in the appropriate direction to disengage the actuator stem connection from the valve stem. See Figure 20. Figure 17: VA-247PSO024M normally open actuator Figure 20: Disengage actuator stem connection. Crank the actuator stem away from the valve stem enough to enable removal of the anti-rotation device. - Page 6 ©, Distech Controls Inc., 2016. All rights reserved. While all efforts have been made to verify the accuracy of information in this manual, Distech Controls is not responsible for damages or claims arising from the use of this manual. Persons using this manual are assumed to be trained HVAC specialist / installers and are responsible for using the correct wiring procedures and maintaining safe working conditions with fail-safe environments.
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