ZS duct sensors
ZS Sensors Carrier Proprietary and Confidential CARRIER CORPORATION ©2017
Installation Guide All rights reserved
23
Allow no more than 0.06 inch (1.5 mm) bare communication wire to protrude. If bare
communication wire contacts the cable's foil shield, shield wire, or a metal surface other than the terminal
block, the device may not communicate correctly.
8 Close and latch the sensor's door.
9 Turn on the controller's power.
Use the same polarity throughout the Rnet.
Humidity filter maintenance
The temperature/humidity sensor has a sintered filter that protects the humidity sensor from various airborne
particles. The filter can become dirty and may need periodic cleaning. Symptoms of a dirty filter are that the
humidity sensor is slow to respond or consistently reports incorrect values.
To clean the filter:
1 Gently unscrew the filter from the probe.
2 Rinse the filter in warm soapy water, and then rinse in clean water. You can use a nylon brush if needed.
3 Gently screw the clean filter all the way into the probe. Hand tighten only.
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