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VA-024ZS Series
Zone Valve Actuator, 24lb., Spring Return
Figure 1: VA-024ZS Series zone valve actuator
Product Description
This document describes the hardware installation procedures for the
following VA-024ZS Series zone valve actuators:
24lb., Spring Return, Normally-Closed, 120V,
VA-024ZSC120D
Digital
24lb., Spring Return, Normally-Closed, 24V,
VA-024ZSC024D
Digital
24lb., Spring Return, Normally-Open, 120V,
VA-024ZSO120D
Digital
24lb., Spring Return, Normally-Open, 24V,
VA-024ZSO024D
Digital
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.
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.
Mounting Instructions
Required Tools
-
Small flat-blade screwdriver
-
Wire stripper
Estimated Installation Time
-
20 minutes
1. If mounting the actuator to a valve already in line:
-
Close the shut-off valves in the piping (upstream first,
then downstream).
OR
-
Switch off the pump to allow the differential pressure in
the valve to drop.
2. Disconnect the controller power before replacing the
actuator.
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Summary of Contents for Distech Controls VA-024ZS Series
- Page 1 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 VA-024ZS Series Zone Valve Actuator, 24lb., Spring Return Figure 1: VA-024ZS Series zone valve actuator Take reasonable precautions to prevent electrostatic Product Description discharges to the controller when installing, servicing or operating the controller.
- Page 2 Removing the Actuator from a Valve The vertical position is recommended for mounting. 1. Disconnect the wiring. 2. Unscrew actuator-coupling piece from the valve body threads. 3. Remove the actuator from the valve. Wiring All wiring must conform to NEC and local codes and regulations. Figure 2.
- Page 3 NOTE: The "0" and "1" position markings are intended for reference only and not stroke measurement. Override handle Override handle at at position 0. position 1. Figure 6. Manual Override Handle Position. (A) Allow handle to turn counterclockwise to retract spindle. (B) Turn handle clockwise to extend spindle.
- Page 4 ©, Distech Controls Inc., 2014. 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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