Hubbell HD - P65 SS Thermowell

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3. Twist the cord and shrink-wrap end of the P65SS probe (or cut the shrink-wrap with a
sharp knife) to loosen the P65SS sensor assembly from the P65SS thermowell.
4. Remove the old P65SS sensor assembly by pulling on the cord coming out of the
P65SS thermowell.
Note: It is unnecessary to unscrew the
thermowell from the vessel to replace the P65SS sensor.
Cord P65 Sensor
Shrink-Wrap Cap
5. Insert the new P65SS sensor assembly into the P65SS thermowell. Be sure to insert the
sensor until the shrink-wrap cap engages the threads on the end of the thermowell.
Note: The new sensor and cord assembly is push-fit onto the end of the thermowell
threads. Do not twist the new sensor and cord assembly into the thermowell. The
thermal conductive heat transfer paste inside the thermowell is sufficient for
replacement sensors. Adding additional paste is not required.
6. Plug P65SS probe connector into the T1000 control board.
7. Turn on power to the unit. If display shows “ Err, No, Prb”, press the reset button.
P65SS THERMOWELL
1. Follow steps 1-4 for removing the P65SS Sensor Probe above.
2. Shut off incoming water supply.
3. Attach hose to drain connection.
4. Lift manual release lever on relief valve to let air into system or break union on
outgoing water line.
5. Drain water from tank.
6. Remove the thermowell from tank using a 13/16” socket.
7. Install new #115 Viton o-ring gasket and
install new thermowell. NOTE: Hubbell
recommends lubricating the o-ring with
Parker O-Lube prior to installation.
WARNING: Do not remove the jam nut.
Thermowell
8. Reinstall or install a replacement P65 sensor
probe in accordance with steps 5 and 6 above.
9. Refill tank.
10. Check for leaks. Retighten as required.
11. Turn on power to the unit.
12. Note that to resume operation the controller will
need to be reset by pressing the ‘RESET’ button on the display.
CAUTION: Do not use plumber’s tape/Teflon tape/pipe dope when installing the P65SS
Thermowell. Lubricate O-ring prior to installation. Tighten probe at the brass hex flats
only.