Johnson Controls EDA-8102 User manual

FANs 268.1, 125
Product/Technical Bulletin 8102
Issue Date 0394
© 1994 Johnson Controls, Inc. 1
Part No. 34-621-31, Rev. A
The EDA-8102 Electric Damper Actuator provides
clockwise and counterclockwise proportional control of
dampers and mounts directly on the damper drive
shaft, eliminating the need for costly and complicated
linkage combinations.
The mechanically limited torque output of 100 in·lb
provides long actuator life, protection of the controlled
equipment, and minimal setup and calibration time.
The EDA-8102 Electric Damper Actuator operates on
24 VAC power. It can be ordered with clockwise or
counterclockwise return to normal.
EDA-8102 Electric Damper Actuator
Proportional Control with Spring Return
Figure 1: EDA-8102 Actuator
Features and Benefits
❑Direct Mount Simplifies installation
❑Over Torque Protection (Patent Pending) Eliminates the need for setup or maintenance of
limit switches. Extends the life of the actuator.
❑Up to 90 Degree Clockwise or
Counterclockwise Rotation Increases application versatility
❑Precise Positioning Adjustable Within Any of
the Following Input Signals: 0 to 15 VDC,
0 to 20 mA, or 135 ohm Slidewire
Assures compatibility with most HVAC
controllers
❑Coupler Fits 10 to 12 mm (0.394 to 0.472 inch)
Square or 7/16 to 1/2 inch (11 to 12.5 mm)
Round Damper Shafts
Increases application versatility
❑Designed to Meet 300,000 Driven Cycles Provides longer actuator life
❑Metasys®Network Compatible Provides seamless integration for efficient,
cost-effective, facility-wide control

2 EDA-8102 Product/Technical Bulletin
A
pplication Overview
The EDA-8102 is designed to regulate control air
dampers in HVAC systems. Typical applications
include:
●positioning of D-1300 Series Dampers
●outdoor air, return air, or exhaust dampers
●face and bypass control
●blade positioning for variable volume fans
Refer to damper manufacturer’s information to properly
size the damper and actuator. Return to normal
actuators are recommended for use with outdoor air
dampers.
O
perations
The EDA-8102 Electric Damper Actuator provides a
stall torque output of 100 in·lb with proportional control
of dampers. It can also be used in a variety of other
applications at 80 in·lb continuous load.
The EDA-8102 is used on dampers having externally
accessible 10 to 12 mm (0.394 to 0.472 inch) square
or 7/16 to 1/2 inch (11 to 12.5 mm) round shafts.
It is compatible with Johnson Controls D-1300
Dampers as a direct mount actuator. The EDA-8102
housing has additional mounting slots to aid adaptation
to unusual applications. Several kits are available to
solve virtually any mounting situation.
The EDA-8102 spring return actuator drives the
damper through a full stroke cycle of 90 degrees in 180
seconds. The spring return provides 100 in·lb of
torque to return the damper blades to a normal position
upon loss of power.
Note: The spring return feature is intended only as a
safety feature to drive the actuator during a
power interruption. Continuous use of the
spring return during normal operation shortens
the life of the actuator.
In a typical proportional application, depending on how
the actuator is configured during installation, either a
change in voltage, current, or resistive input initiates
rotation. The damper blades rotate to a position
proportional to the input signal. The actuator holds its
position when change in signal is balanced by the
internal feedback potentiometer.
When no control signal is present, the actuator returns
to its electrical zero position.
When no 24 VAC power is present, the spring return
drives the actuator to the mechanical limit. This will
drive the damper blades to an open or closed position
(clockwise or counterclockwise, based on model
selection).
I
nstallation
Kit Includes
●EDA-8102-110X Electric Damper Actuator for direct
shaft mounting (0 = counterclockwise spring return,
1 = clockwise spring return)
●two No. 10 mounting screws
●two isolator grommets
Tools Required
●screwdriver, flat-blade, 1/4 to 5/16 inch and 1/8 inch
tips
●drill, 5/32 inch
●drill bits, (4 mm) and 11/64 inch (5 mm)
●hole saw, 1-1/4 inch (32 mm)
●adjustable wrench
●pliers
●test leads or No. 18 gauge wire for jumpers
Accessories
●D-9999-142 blade pin extension for JCI
D-1300 dampers
●D-9999-134 blade pin extension for JCI
D-1300 dampers (includes D-3153-105)
●D-3153-105 universal mounting bracket if mounted
on duct or wall less than 16 gauge
●EDA-8000-101 adjustable bracket for spanning
channels or objects

EDA-8102 Product/Technical Bulletin 3
Dimensions
Note: The actuator requires a minimum damper shaft
length of four inches from the mounting
surface. When determining shaft length,
consideration has to be given to channel
depth, insulation, etc. Refer to the following
dimensional drawings.
Before starting the job, obtain the damper installation
information for the location to use as a reference when
mounting the actuator.
6 inch Minimum
for Cover
Removal, Wiring,
and Adjustments
Figure 2: Cover Removal Dimensional Requirement
No. 10 Slots for Remote
Mounting (4 Places)
2.33
(59)
1.50
(38)
0.75
(19)
6.94 (176)
8.78 (223)
9.26 (235)
4.34
(110)
(3 x 0.875) for
1/2 in. Conduit
Flexible
Grommet
(2 Required)
3.27
(83)
0.92
(23) 0.70
(18)
6.71 (174)
No. 10 Slots for
Side Mounting
(4 Places)
1
(25)
1.5
(37)
2.5 (63) 1.5 (32)
3
(75)
8.33 (212)
4.65
(118)
Figure 3: Dimensions (inches/mm)
If access to the damper shaft is limited, or internal
mounting is required, mount the actuator remotely by
installing a six inch long, 1/2 inch diameter rod into the
coupler and use linkage accessories shown in the
Damper Accessory Kits , Order No. 268.1-100 located
in the
Damper and Actuator Manual, FAN 268.1 .
Mounting
!
CAUTIONS:
●Follow NEC and local electrical codes.
●Disconnect power supplies.
●Observe the ranges and limitations found in
Specifications.
●Do not install the actuator in applications
where its failure could result in personal injury
and/or loss of property.
●Do not install if explosive vapors, corrosive
vapors, or escaping gases will be present.
●Add protective control devices, as needed, to
prevent undesirable system failure modes.
Note: Use of the actuator’s top and bottom center
mounting slots with the isolation grommets is
the preferred mounting arrangement when
using shafts 10 mm (0.472 inch) square or
7/16 inch (11 mm) round or larger. If the duct
or wall is less than 16 gauge (0.06 inch or
1.5 mm), use the Universal Mounting Bracket
(D-3153-105).
When using the blade pin extension, follow installation
procedures packaged with the product.

4 EDA-8102 Product/Technical Bulletin
Standard Mounting
The EDA-8102 is not position sensitive and can be
mounted in any convenient orientation on a duct or wall
that is 16 gauge (0.06 inch or 1.5 mm) or thicker as
long as the drive shaft is perpendicular to the mounting
surface of the actuator.
Because of the spring return, the EDA-8102 gear
release lever is not operational.
Top Center
Mounting Slot
Figure 4: Actuator Against Duct
1. Position the actuator onto the blade pin extension
so that the actuator sits against the duct as shown
in Figure 4.
Note: The bottom center mounting hole looks the
same as the top mounting hole illustrated in
Figure 4.
2. Mark the location of the actuator’s top and bottom
mounting slots on the duct or wall.
3. Remove the actuator and coupler and set aside.
4. Drill two 5/32 inch (4 mm) holes in the duct or wall
at the marked locations.
5. Slide the actuator and coupler onto the pin
extension.
6. Secure the actuator to the wall or duct with the
screws and isolation grommets included in the kit.
Note: Be careful not to drive the screws into the
damper linkage.
7. Tighten the two square-head screws on the
actuator coupler.
W
iring
!
CAUTION: Disconnect all power before
wiring the actuator to avoid
electrical shock or damaging the
equipment.
Figure 5: Removing Cover
1. Insert a screwdriver under the edge of the plastic
cover and carefully pry off the cover as shown in
Figure 5.
Conduit
Opening
Covers
Conduit Opening
Figure 6: Conduit Openings
2. Insert the conduit and wires from the controller
through one of the three conduit openings.
3. Install the black plugs in the other two openings.
See Figure 6.

EDA-8102 Product/Technical Bulletin 5
Input Voltage
Common
24 VAC Input Power
+15 V Output
Supply
Slidewire
Auxiliary Input
+1
TB1
TB2
AC
COMIN
+15 AUXIN
Figure 7: Identification of Wiring Connections
4. Connect the leads to Terminal Block 1 (TB1) or
Terminal Block 2 (TB2) as required for the input
signal to be used. See Figure 7 for general
location and designations or refer to Figures 21,
23, or 24 for specific terminals.
T
ypical Applications
The following are for direct acting. Reverse acting
rotation will be opposite the information shown.
Note: Do not use potentiometer controllers in high
noise environments or with long cable lengths.
Drives Actuator CCW
When Contact Opens Drives Actuator CW
When Contact Opens
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
Figure 8: Potentiometer Controller with High and
Low Limit with SPST Switch
Drives ActuatorCCW
When Contact Closes Drives Actuator CW
When Contact Closes
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
Figure 9: Potentiometer Controller with High or Low
Limit with SPDT Switch
135 ohm
Main
Controller
Drives CW
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
135 ohm
Main
Controller
Drives CCW
Figure 10: Potentiometer Controller with Proportional
Override
For override use:
Y45AA-1 (135 ohm) for 0 to 50% control
Y45AA-2 (350 ohm) for 0 to 70% control
Y45AA-9 (1000 ohm) for 0 to 100% control
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
1 - 5 VDC
Controller
+
-
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
Figure 11: Multiple Actuators, Voltage Controller
Note: It is suggested that separate or isolation
transformers be used for this application.
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
4 - 20 mA
Controller
+
-
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
Figure 12: Multiple Actuators, Current Controller
Note: Separate or isolation transformers must be
used for this application.

6 EDA-8102 Product/Technical Bulletin
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
135 ohm
Controller
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
AC
COM
IN
+15
+1
AUX IN
EDA-8X02
24
VAC
Figure 13: Multiple Actuators, Slidewire Controller
Note: It is suggested that separate or isolation
transformers be used for this application.
G
lossary
Following are descriptions of terms used in the
adjustment procedures:
0 VDC 15 VDC
CCW
CW
Figure 14: Direct Acting Operation Curve
●Direct acting--refers to the operation of the
actuator and not the damper, where an increase of
input signal drives the actuator coupler clockwise,
jumper W1 set to DCW
0 VDC 15 VDC
CCW
CW
Figure 15: Reverse Acting Operation Curve
●Reverse acting--refers to the operation of the
actuator and not the damper, where an increase of
input signal drives the actuator coupler
counterclockwise, jumper W1 set to DCCW
●Potentiometer R36--provides counterclockwise
electrical end stop regardless of W1 position
●Potentiometer R37--provides clockwise electrical
end stop regardless of W1 position
●Potentiometer R35--controls clockwise input signal
limit regardless of W1 position
●Potentiometer R39--controls counterclockwise
input signal limit regardless of W1 position
Note: If R36 or R37 potentiometers are turned fully
clockwise, they have no effect on the actuator
operation. The actuator will drive to the
mechanical limits.

EDA-8102 Product/Technical Bulletin 7
C
heckout Procedure
The EDA-8102 is factory set for:
●direct acting
●90 degrees of rotation
●control signal of 1 to 9 VDC
If rotation and control signals are set to the desired
configuration as received from the factory, follow these
steps to verify operation after all wiring connections
have been completed:
W1
V
I
DCW
DCCW
W2
W1
Figure 16: Jumper Locations
1. Verify that jumper W1 matches the direction and
W2 matches the control signal that will be used.
See Figure 16 for locations and Table 1 for
settings.
Table 1: Jumper Setting
Operating Mode Jumper Setting
Direct Acting W1 to DCW
Reverse Acting W1 to DCCW
Voltage (0 to 15 VDC) W2 to Voltage
Current (0 to 20 mA) W2 to 0-20
Slidewire (135 ohm) W2 to Voltage
2. Apply power to the unit.
3. Refer to the controller’s manual for directions on
checking out a newly installed device.
4. Use the controller to drive the actuator fully
clockwise and counterclockwise.
5. Verify that the damper blades fully open and close.
6. If the factory settings are not correct, perform the
appropriate
Calibration Procedures , otherwise,
install the plastic cover and checkout is completed.
C
alibration Procedures
Note: If the actuator becomes inoperable during
adjustment procedures, return the actuator to
operation by returning to the following section.
Changing Amount of Rotation
This procedure is performed to reduce the amount of
rotation from 90 degrees or return the amount of
rotation to 90 degrees.
Note: This procedure alters the input signal
calibration.
R35
R36
R37
R39
Figure 17: Potentiometer Locations
Prior to setting direct or reverse action, turn the
potentiometers identified in Figure 17 to the following
positions:
R35 fully counterclockwise
R36 fully clockwise
R37 fully clockwise
R39 to its mid-position
Direct Acting
1. Verify that power is turned off.
W1
V
I
W2
DCW
DCCW
W1
Figure 18: Direct Acting Rotation Setting
2. Verify jumper W1 is set to the direct acting
DCW
position and jumper W2 is set to the voltage
position as shown in Figure 18.

8 EDA-8102 Product/Technical Bulletin
Jumper
AUX IN
+1VDC
IN
COM
AC
TB1 TB2
+15V
Figure 19: Jumper Installation
3. Connect a jumper from terminal IN (TB1) to
terminal +15 V (TB2) as shown in Figure 19.
4. With the 24 VAC input properly wired to terminals
AC and COM (TB1), apply power and the actuator
will rotate clockwise until the mechanical limit is
reached.
5. After the actuator has reached the mechanical
limit, incrementally adjust R37 counterclockwise
until the actuator rotates to the desired electrical
end stop for clockwise rotation.
Note: If R36 and R37 remain turned fully clockwise,
they will have no effect on the actuator
operation. The actuator will drive to the
mechanical limit.
6. Remove power to the unit and then remove the
jumper from terminals IN (TB1) and +15V (TB2).
7. Apply power and the actuator will rotate
counterclockwise until the mechanical limit is
reached.
8. After the actuator has reached the mechanical
limit, incrementally turn R36 counterclockwise until
the actuator rotates to the desired electrical end
stop for counterclockwise rotation.
9. Remove power to the unit and then connect the
jumper from terminals IN (TB1) and +15V (TB2).
Verify that the actuator is rotating full stroke to the
proper electrical end stops. Minor adjustments
may be necessary
10. Perform the appropriate input calibration procedure
for the signal being used:
Voltage on page 9
Current on page 9
Slidewire on page 10
Reverse Acting
1. Verify that power is turned off.
DCW
DCCW
W1
Figure 20: Reverse Acting W1 Setting
2. Move jumper W1 to the
DCCW position as shown
in Figure 20 and verify jumper W2 is set to the
voltage position.
3. Connect a jumper from terminal IN (TB1) to
terminal +15 V (TB2) as shown in Figure 19.
4. With the 24 VAC input properly wired to terminals
AC and COM (TB1), apply power and the actuator
will rotate counterclockwise until the mechanical
limit is reached.
5. After the actuator has reached the mechanical
limit, incrementally adjust R36 counterclockwise
until the actuator rotates to the desired electrical
end stop for counterclockwise rotation.
Note: If R36 and R37 are turned fully clockwise, they
have no effect on the actuator operation. The
actuator will drive to the mechanical limits.
6. Remove power to the unit and then remove the
jumper from terminals IN (TB1) and +15V (TB2).
7. Apply power and the actuator will rotate clockwise
until the mechanical limit is reached.
8. After the actuator has reached the mechanical
limit, incrementally adjust R37 counterclockwise
until the actuator rotates to the desired electrical
end stop for clockwise rotation.
9. Remove power to the unit and then connect the
jumper from terminals IN (TB1) and +15V (TB2).
Verify that the actuator is rotating full stroke to the
proper electrical end stops. Minor adjustments
may be necessary.
10. Perform the appropriate input calibration procedure
for the signal being used:
Voltage on page 9
Current on page 9
Slidewire on page 10

EDA-8102 Product/Technical Bulletin 9
Input Voltage
This procedure is performed after changing direction of
rotation or to change from the factory set 1 to 9 VDC
control input signal to another VDC input range.
Note: This procedure does not change the electrical
end of stroke limits.
1. Verify that power is turned off.
Common 0 to 15 VDC
24 VAC
AC
IN
+15 +1
AUXIN
TB1 TB2
V
W2
COM
Figure 21: Voltage Mode Connection
2. Verify jumper W2 is set to the
V position as shown
in Figure 21.
R35 R39
W1
Figure 22: R35 and R39 Locations
3. Turn only the potentiometers identified in
Figure 22 to the following positions:
R35 fully counterclockwise
R39 fully clockwise
4. Verify that controller wiring is complete and apply
24 VAC to terminals AC and COM (TB1).
5. Apply the minimum (direct acting) or maximum
(reverse acting) input control voltage to the
actuator to terminals IN and COM (TB1). The
actuator will rotate fully counterclockwise and stop
when it reaches the electrical end stop.
6. Turn R39 counterclockwise until the actuator starts
to rotate clockwise.
7. After the actuator stops moving, turn R39
clockwise in very small increments until the
actuator returns to the counterclockwise electrical
end stop.
8. Apply the maximum (direct acting) or minimum
(reverse acting) input control voltage to the
actuator to terminals IN and COM (TB1). The
actuator will rotate fully clockwise and stop when it
reaches the electrical end stop.
Note: There should be at least 2.5 VDC difference
between the minimum and maximum input
signals.
9. Turn R35 clockwise until the actuator starts to
rotate counterclockwise.
10. After the actuator stops moving, turn R35
counterclockwise in very small increments until the
actuator returns to the electrical end stop.
11. Verify that the actuator is working properly by
varying the input voltage throughout the entire
range and allowing the actuator to complete at
least one cycle. Minor adjustments of R35 and
R39 may be necessary.
12. Install the plastic cover and procedure is
completed.
Current Mode
This procedure is performed only if the desired action
is to change the control input signal to a 0 to 20 mA
current input signal.
Note: This procedure does not change the electrical
end of stroke limits.
1. Verify that power is turned off.
Common 0 to 20 mA
24 VAC
AC COM IN +15 +1 AUXIN
TB1
TB2
V
W1
I
(+)
(-)
Figure 23: Current Input Connection
2. Move jumper W1 to the
I position as shown in
Figure 23.

10 EDA-8102 Product/Technical Bulletin
3. Turn only the potentiometers identified in
Figure 22 to the following positions:
R35 fully counterclockwise
R39 fully clockwise
4. Verify that wiring is complete and apply 24 VAC to
terminals AC (TB1) and COM (TB1).
5. Apply the minimum (direct acting) or maximum
(reverse acting) input current to the actuator to
terminals AUXIN (TB2) and COM (TB1). The
actuator will rotate fully counterclockwise and stop
when it reaches the electrical end stop.
6. Turn R39 counterclockwise until the actuator starts
to rotate clockwise.
7. After the actuator stops moving, turn R39
clockwise in very small increments until the
actuator reaches the electrical end stop.
8. Apply the maximum (direct acting) or minimum
(reverse acting) input current to the actuator to
terminals AUXIN (TB2) and COM (TB1). The
actuator will rotate fully clockwise and stop when it
reaches the electrical end stop.
9. Turn R35 clockwise until the actuator starts to
rotate counterclockwise.
10. After the actuator stops moving, turn R35
counterclockwise in very small increments until the
actuator reaches the electrical end stop.
11. Verify that the actuator is working properly by
varying the input current throughout the entire
range and allowing the actuator to complete at
least one cycle. Minor adjustments of R35 and
R39 may be necessary.
12. Install the plastic cover and procedure is
completed.
Slidewire
This procedure is performed only if the desired action
is to change the control input signal to a slidewire
control input signal.
Note: Slidewire input should not be used in high
noise environments or with long cable lengths.
Note: This procedure does not change the electrical
end of stroke limits.
1. Verify that power is turned off.
Common
24 VAC
AC
COM IN
+15
+1
AUXIN
TB1
TB2
V
W1
Figure 24: Slidewire Connection
2. Verify jumper W1 is set to the
V position as shown
in Figure 24.
3. Turn only the potentiometers identified in
Figure 22 to the following positions:
R35 fully counterclockwise
R39 fully clockwise
4. Verify that wiring is complete and apply 24 VAC to
terminals AC and COM (TB1).
5. Apply the minimum (direct acting) or maximum
(reverse acting) input resistance to the actuator.
The actuator will rotate fully counterclockwise and
stop when it reaches the electrical end stop.
6. Turn R39 counterclockwise until the actuator starts
to rotate clockwise.
7. After the actuator stops moving, turn R39
clockwise in very small increments until the
actuator returns to the electrical end stop.
8. Apply the maximum (direct acting) or minimum
(reverse acting) input resistance to the actuator.
The actuator will rotate fully clockwise and stop
when it reaches the electrical end stop.
9. Turn R35 clockwise until the actuator starts to
rotate counterclockwise.
10. After the actuator stops moving, turn R35
counterclockwise in very small increments until the
actuator returns to the electrical end stop.
11. Verify that the actuator is working properly by
varying the input resistance throughout the entire
range and allowing the actuator to complete at
least one cycle. Minor adjustments to R35 and
R39 may be necessary.
12. Install the plastic cover and procedure is
completed.