i
Testing Airflow
Using Multiple Dampers to Define a Zone
If needed, up to 4 dampers can be connected together to
define the space.
IN
OUT
IN
IN
OUT
IN
IN
OUT
IN
IN
OUT
IN
To DDC1
Damper
Control
Troubleshooting
Step 4. Install Modulating Damper
Install a modulating damper in the trunk line supplying air to
the space. Up to four dampers can be connected to define a
zone.
Plug one end of the Plug&Play cable into the “IN” connector
on the damper actuator and the other end into the Zone 1
connector on the DDC1 Damper Control.
1)
2)
At the thermostat, activate a heating or cooling call. Set airflow
to 100%. Measure or feel the airflow going to the space as a
reference. Now rotate the knob on the WDDC fully counter
clockwise to 0% to reduce airflow. You should measure or feel
very little airflow. Now rotate the knob clockwise to 50%.
Measure or feel the airflow going to the space. You should feel
more airflow but not as much as at 100%. If not, see
troubleshooting.
Make sure the DDC1 Damper Control is powered - green
LED on. To see the LED on the DDC1, you may need to
remove the cover.
Limited 5-Year Warranty
The 5-year warranty is limited to the repair or replacement of
defective product due to parts failure or defective workmanship.
26072 Merit Circle #110 / Laguna Hills, CA 92653
949-916-0945 Fax 949-458-8502 www.eControlsUSA.com
eControls
100%
Airflow Setting
LED
Green
0%
Red
Between
100% and 0%
No LED
Damper LEDs and Position
Damper Position
Open
Closed
Partially Closed
Turn on power to the HVAC equipment. Observe a green LED on
the DDC1 circuit board and a green LED on the damper actuator.
Step 5. Apply Power
WDDC Cut Template
Hole for wall anchor.
Cut out.
3.280
1.825
1.250
i
Check the wiring at the WDDC and DDC1. Check the
damper connection at the damper and at the DDC1.
Wall Plate Outline.
Hole for wall anchor.
