Final answer:
Technicians need to program the night set back digital thermostat appropriately for energy savings and ensure accurate calibration. They should also teach users to use the setback features and offer troubleshooting support for any initial issues.
Step-by-step explanation:
When starting up with a night set back digital thermostat, technicians are required to always program the thermostat according to the user's schedule or preferences. This involves setting up the temperature to lower automatically during periods when the building is unoccupied or when the occupants are sleeping to save energy. Additionally, the technician must ensure that the thermostat is correctly calibrated, verifying that temperature readings are accurate and reliable.
In addition, technicians should also provide guidance to the users on how to use their thermostat, explain the benefits of the setback features, and troubleshoot any potential issues that may arise during the initial operation of the device.