ZS immersion temperature sensor
ZS Sensors Carrier Proprietary and Confidential CARRIER CORPORATION ©2017
Installation Guide All rights reserved
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An immersion sensor is mounted in a thermowell (purchased separately from Carrier), a hollow tube closed off on
one end and threaded at the other end. A thermowell is permanently installed in pipes, tanks or sumps so that an
immersion sensor can be inserted into the thermowell to measure the content's temperature. The temperature is
transferred through the wall to the thermowell to the sensor. The thermowell prevents the contents of the pipe
from escaping and holds in the pressure of pressurized pipes.
To install the thermowell (typically performed by a pipe fitter)
1 Drill a 3/4 in. hole in the pipe where the thermowell is needed.
2 Weld a Threadolet or Weldolet fitting (not provided) over the hole.
3 Thread sealant such as Teflon tape or pipe dope to the 1/2 in. NPT threads of the thermowell.
4 Insert the thermowell into the threadolet and tighten.
To install the immersion sensor
1 Insert the immersion sensor probe into the thermowell.
2 Screw the sensor's enclosure into the thermowell; hand-tighten until snug.
3 Unlatch and open the hinged door on the sensor's enclosure.
4 Push on the probe until it stops so that the probe is touching the bottom of the thermowell.
5 Close the enclosure door until it latches.
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