Distech Controls DA-020S Series Manual

Hardware Installation Guide
DA-020S Series
Damper Actuator, 20lb.-in., Spring Return
Figure 1: DA-020S Series Damper Actuator
Product Description
This document describes the hardware installation procedures for
direct-coupled mounting of the DA-020S Series damper actuators.
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.
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.
Product Parts
a) Actuator
b) Mounting bracket
c) Mounting screws
d) 3 mm hex key
e) DA-020S120DXXXX conduit adapter
Figure 2. Parts of the DA-020S Series Actuator.

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Product Components
Figure 3. Components of the DA-020S Spring Return Actuator.
Figure 4. DA-020S120DXXXX Only, Conduit Adapter.
Figure 5. Conduit Adapter Box Shipped Only with DA-
020S024DX2XP, DA-020S024FX2XP, DA-
020S024QX2XP, and DA-020S120DX2XX actuators
Mounting Instructions
Do not open the actuator. If the actuator is inoperative,
replace the unit.
- The shaft adapter can be mounted on either side of the actuator.
The actuator mounting orientation and shaft length determine how
they will be mounted on the actuator.
- The minimum damper drive shaft length is 3/4-inch (20 mm).
- See Specifications for the minimum and maximum damper shaft
dimensions.
- A mounting bracket is included with the actuator.
Adapter Mounting
Figure 6.
Figure 7. NEMA 1 IP40 in All Positions

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Shaft Mounting
Figure 8.
Wiring
Do not expose the actuator's
connecting cables to water or lay the cables in water.
Device of protection class II (protective
insulation)
Device of protection class III (protective
insulation)
DA-020S024DXxxx
2-Position: 24 Vac/dc
Class III
DA-020S024FXxxx
Floating: 24 Vac/dc
Class III
DA-020S024QXxxx
Modulating: 24 Vac/dc
Class III
DA-020S120DXxxx
2-Position: 120 Vac

4/8
Special Applications
DA-020S024QXxxx, 4 to 20 mA
Auxiliary Switches
Figure 9.
Actuator
Position
Switch A Common
Connected to
Switch B
Common
Connected to
0 to 5°
N.O.
N.O.
5 to 85°
N.C.
N.O.
85 to 95°
N.C.
N.C.
Mixed switch operation to the switching outputs of both
dual end switches (5° and 85°) is not permitted.
Either AC line voltage from the same phase must be
applied to all six outputs of the fixed dual end switches,
or UL-Class 2 voltage must be applied to all six
outputs.
DIP Switch Functionality for
DA-020S024QXXXP
The black position indicates the active switch setting.
Description
Label
Description
Function
Inverse Acting
Direct-Acting
Input Signal
Inversion
Inverse-Acting
Feedback
Direct-Acting
feedback
Feedback
Signal
inversion
Not In Use
Input Signal Inversion
Allows inverting the control input signal
The arrow direction indicates opening or closing (closing or opening)
when operating an actuator with a given control signal.
= Direct acting (Factory setting)
Input signal 2 Vdc ► fail-safe position
= Inverse acting
Input signal 10 Vdc ► fail-safe position
Feedback Signal Inversion
Allows inverting the position feedback output signal
= Direct acting feedback (Factory setting)
Fail-safe position ► Output signal 2 Vdc
= Inverse acting feedback,
Fail-safe position ► Output signal 10 Vdc
Wiring
All wiring must conform to NEC and local codes and regulations.
Use earth ground isolating step-down Class 2 transformers. Do not use
autotransformers.
The maximum rating for a Class 2 step-down transformer is 100 VA.
Determine the supply transformer rating by summing the VA ratings of
all actuators and all other components used. It is recommended that
one transformer power no more than 10 actuators (or 80% of its VA).
Installations requiring Conformance:
All wiring for 24 Vac/dc actuators must only be safety extra-
low voltage (SELV) or protective extra-low voltage (PELV)
per HD384.
Use safety transformers per EN61558 with double isolation,
designed for 100% duty-cycle for supplying SELV or PELV
circuits.
Over-current protection for supply lines is maximum 10A.

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Start-Up/Commissioning
DA-020S024QXxxx
Spring Return, Modulating Control, 24 Vac/dc
1. Check Operation:
a) Connect wires 1 (red) and 2 (black) to the 24 Vac/dc
power supply.
NOTE: With no input signal present, the DA-
020S024QXXXP actuator with input signal inversion
switch set to Inverse Acting, will start driving towards
90°.
b) Use a Digital Multimeter (DDM) and set the dial to Vdc
for the actuator input signal.
c) Connect wires 2 (black) and 8 (gray) to the DMM.
d) Apply to input signal wire 8 (gray):
Y = 10 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Direct Acting).
Y = 2 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Inverse Acting).
Allow the actuator shaft coupling to rotate from 0° to 90°.
e) Apply to input signal wire 8 (gray):
Y = 2 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Direct Acting).
Y = 10 Vdc (DA-020S024QXXXP with input signal
inversion switch set to Inverse Acting).
The shaft coupling returns to the "0" position.
DA-020S024DXxxx
Spring Return, 2-Position, 24 Vac/dc
2. Check Operation:
a) Connect wires 1 (red) and 2 (black) to 24 Vac/dc power
supply. Allow the actuator shaft coupling to rotate from
0° to 90°.
b) Disconnect wire 1 (red) and the actuator shaft coupling
returns to the "0" position.
3. Check Spring Return:
a) Connect wire 1 (red). Allow the actuator shaft coupling
to rotate halfway.
b) Disconnect wire 1 (red). The spring returns the actuator
shaft coupling to the fail-safe "0" position.
DA-020S024FXxxx
Spring Return, Floating, 24 Vac/dc
1. Check Operation:
a) Connect wires 1 (red) and 2 (black) to a 24 Vac/dc
power supply.
b) Apply a control signal (24 Vac/dc) to wire 6 (violet).
Allow the actuator shaft coupling to rotate from 0 to 90°.
c) Stop the control signal to wire 6 (violet).
d) Apply a control signal (24 Vac/dc) to wire 7 (orange).
Allow the actuator shaft coupling to rotate from 90° to 0°.
2. Check Spring Return:
a) Apply a control signal (24 Vac/dc) to wire 6 (violet).
Allow the actuator shaft coupling to rotate half way.
b) Disconnect wire 1 (red). The spring returns the actuator
shaft coupling to the fail-safe "0" position.
c) Connect wire 1 (red). The actuator shaft coupling begins
to move.
DA-020S120DXxxx
Two-Position, 120 Vac
1. Check Operation:
a) Switch on 120 Vac power.
b) Allow the actuator shaft coupling to rotate from 0 to 90°.
2. Switch off power. The actuator shaft coupling will return to the "0"
position.
3. Check Spring Return:
a) Switch on 120 Vac power.
b) Allow the actuator shaft coupling to rotate halfway.
c) Switch off 120 Vac power. The spring returns the
actuator shaft coupling to the fail "0" position.
Troubleshooting
To avoid injury or loss of life, pay attention to any
hazardous voltage (for example, 120 Vac) when
performing checks.
- Check that the wires are connected correctly.
- Check that DIP switch is set correctly, if used.
- Use a Digital Multimeter (DMM) to verify that the operating
voltage is within range.
- If the actuator is not working, check the damper for blockage.
- If blocked, remove the obstacle and cycle the actuator power off
and on. The actuator should resume normal operating mode.

6/8
Wiring Terminations
Each wire has the standard symbol printed on it.
Table 1. Wiring Terminations
Connecting
Standard
Symbol
Function
Color
Color
Symbol
24 Vac/dc
Actuator
1
Supply (SP)
Red
RD
2
System Neutral
Black
BK
6
Control signal clockwise
Violet
VT
7
Control signal counterclockwise
Orange
OG
8
Input Signal: 2 to 10 Vdc or 10 to 2 Vdc
(DA-020S024QXxxx)
Gray
GY
9
Position Output: 2 to 10 Vdc or 10 to 2 Vdc
(DA-020S024QXxxx)
Pink
PK
120 Vac
3
Supply
Black
BK
4
Neutral
White
WH
Auxiliary Switches
1
Switch A Common
S1
Gray/red
2
Switch A N.C.
S2
Gray/blue
3
Switch A N.O.
S3
Gray/pink
4
Switch B Common
S4
Black/red
5
Switch B N.C.
S5
Black/blue
6
Switch B N.O.
S6
Black/pink
Retrofit Wiring
Modulating Control
(2 to 10 Vdc)
Function
Distech Controls
DA-020S Series
Siemens
GQD Series
Belimo
TF Series
Honeywell
MS7503 Series
Johnson
M9203 Series
Color
Number
Color
Number
Color
Number
Terminal
Only
Number
Color
Number
Supply (24V)
Red
1
Red
1
Red
2
1
Red
2
Common
Black
2
Black
2
Black
1
2
Black
1
0(2) to 10 Vdc Input
Gray
8
Gray
8
White
3
3
Gray
3
0(2) to 10 Vdc Feedback
Pink
9
Pink
9
Orange
5
5
Orange
4
2-Position Control
(24 Vac/Vdc)
Function
Distech Controls
DA-020S Series
Siemens
GQD Series
Belimo
TF Series
Honeywell
MS8103 Series
Johnson
M9203 Series
Color
Number
Color
Number
Color
Number
Terminal
Only
Number
Color
Number
Supply (24V)
Red
1
Red
1
Red
2
1
Red
2
Common
Black
2
Black
2
Black
1
2
Black
1
2-Position Control
(120 Vac)
Function
Distech Controls
DA-020S Series
Siemens
GQD Series
Belimo
TF Series
Honeywell
MS4103 Series
Johnson
M9203 Series
Color
Number
Color
Number
Color
Number
Terminal
Only
Number
Color
Number
Line (120V)
Black
3
Black
3
Black
2
1
Black
2
Neutral
White
4
White
4
White
1
2
White
1

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Dimensions
Figure 10. Actuator and Mounting Bracket for models: DA-020S024DXXXP / FXXXP / QXXXP
Figure 11. DA-020S120DXXXX Actuator Only.
Figure 12. Actuators with Conduit Adapter for
DA-020S024DX2XP / FX2XP / QX2XP

©, 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. Distech Controls reserves the right to change, delete or add to the information in this manual at any time without notice.
Distech Controls, the Distech Controls logo, and Innovative Solutions for Greener Buildings are trademarks of Distech Controls Inc. All other trademarks are property of their
respective owners.
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DA-020S Series_IG_10_EN
Dimensions (cont’d)
Figure 13. Dimensions of the DA-ASK75.7U Weather Shield in Inches (Millimeters).