Step1: Disconnect electrical power to the equipment and allow it to cool completely.
Step2: Remove the control panel to access the existing thermostat and capillary bulb.
Step3: Label and disconnect the thermostat wiring.
Step4: Carefully remove the sensing bulb and capillary tube, avoiding kinks or sharp bends.
Step5: Install the new thermostat and route the capillary tube along the original path.
Step6: Secure the sensing bulb in its mounting location and reconnect the wiring.
Step7: Reassemble the unit, restore power, and verify proper temperature control operation.