Caron 6241 User Manual

Page 16

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6200 series Operations Manual

Rev D 2/14/2012

Page 16 of 60

SECTION 4 – ACCESSORY INSTALLATION

Connecting Alarm Contacts (ALRM301)

With the purchase of ALRM301, a set of terminals on the rear of the unit is provided to

monitor temperature and humidity (6220 & 6240 only) alarms.

With the alarm contacts, the terminals provided allow for a NO (normally open) output,

a NC (normally closed) and COM (common) connection. In the event of an alarm

condition or power failure, the NO contact will close, and the NC contact will open.

Once the alarm is cleared, the contacts return to their normal conditions. Insert the

appropriate wire into the terminal and tighten down the screw terminal on top of the

connector.

Terminal Connection

Unit off

Normal

Alarm

N/O to C

Closed

Open

Closed

N/C to C

Open

Close

Open

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