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Adjustments and calibration, Testing, Maintenance – KMC Controls SSE-2000 Series User Manual

Page 2: More information, Adjustments and calibration 2 testing, More information 2, Caution

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SSE-1000/2000 Series

2

Installation Guide

© 2010 KMC Controls, Inc.

651-019-01C

Maintenance

Protect the element from excessive dust during

installation and job construction. Careful installation

will ensure long-term reliability and performance.
For periodic maintenance, check for dust on the

elements. If present, carefully blow dust off the

elements.

Adjustments and Calibration

Each CEP-4000 is calibrated to its SSE series sensor

at the factory. No further calibration is needed. If the

units are replaced or become mismatched, complete

the following steps to recalibrate the controller and

sensor.
1. Connect sensor terminals 1, 2, and 3 to CEP-4000

terminals 1, 2, and 3 respectively. (Connection of a

thermostat to the CEP-4000 is not necessary.)

2. Connect the CEP-4000 to a 24 VAC, –15%/+20%,

50/60 Hz power source (disconnect the power

to the transformer while wiring the CEP).

Connect terminal 9 to the “–”common side of the

transformer, and connect terminal 10 to the “~

phase side of the transformer.

3. Connect the voltmeter “+” to CEP terminal 2 and

“–” to CEP terminal 4.

4. Ensure zero airflow in the duct or remove the

sensor from the duct and place it in a horizontal

position with zero airflow.

5. Wait 5 minutes for the CEP and SSE units to

stabilize.

6. Access the trimpot through the slot in the CEP-

4000’s side. The slot is normally covered by a label

and is on the sensor/thermostat connection side

(see illustration below).

7. Adjust the trimpot until the voltmeter reads 9

volts. When the adjustment is made, the voltage

will immediately overshoot and then stabilize.

This establishes the baseline. (See the Voltage/

Velocity Correlation section in the CEP-4000

Application Guide for more information.)

8. Wait an additional 5 minutes for the CEP and SSE

units to stabilize.

9. Readjust if necessary.

KMC Controls, Inc.

19476 Industrial Drive

New Paris, IN 46553

574.831.5250

www.kmccontrols.com

[email protected]

CEP-4000

Trim

Potentiometer

Testing

1. Disconnect ALL wiring from the SSE sensor.
2. Measure resistance between terminals 1 and 3

with an ohmmeter. Resistance should be between

100–400 ohms. If not, replace the sensor and

recalibrate controller to the new sensor. See the

Adjustments and Calibration section.

3. SSE-2000 series sensors have additional terminals

marked “X” and “Y” for use with the heat/cool

changeover relay module. Resistance between

“X” and “Y” should be between 2,000 and 20,000

ohms.

More Information

For specifications, see the SSE-1000/2000 Data Sheet.
For sample applications, see the CEP-4000 Applica-

tions Guide.

Sensor

Connections

CAUTION

To prevent damage to the SSE series sensors, do not
touch or handle the interior wire windings.

This manual is related to the following products: