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The PIC will not allow calibration if the transducer is too far out of calibration. A new
transducer must be installed and recalibrated.
Transducer Replacement
Since the transducers are mounted on Schrader-type fittings, there is no need to remove
refrigerant from the vessel. Disconnect the transducer wiring by pulling up on the locking tab
while pulling up on the weather-tight connecting plug from the end of the transducer.
Do not pull
on the transducer wires
. Unscrew the transducer from the Schrader fitting. When installing a
new transducer, do not use pipe sealer, which can plug the sensor. Put the plug connector back
on the sensor and snap into place. Check for refrigerant leaks.
Make sure to use a backup wrench on the Schrader fitting whenever removing a
transducer.
WARNING
!
WARNING