After power-up, all LCD segments light up for about 3 seconds. Afterwards, the VRF HMI unit starts in Normal mode to display the current room temperature, user navigation icons and status of the application according to the factory settings. Then the unit is ready for commissioning by qualified HVAC staff.
The control parameters of unit can be adjusted to ensure optimum performance of the entire system (see Parameter settings).
The unit has an internal sensor for accurate temperature display. If the temperature display is influenced by its installation location, calibrate the sensor via parameter P05 to adjust the readings.
Setpoint and range limitation
For comfort and to save energy, we suggest to review all setpoint related parameters and adapt them as needed.