User manual

Chapter 5: Monitoring and maintaining your TVS Phason
42
To use temperature override mode
1. Press Program until test displays and then press Select.
The display shows 28, the first item in the Test menu.
2. Press
Up or Down until 29 displays and then press Select.
The display shows the current temperature, which is now the test
temperature.
3. Press
Up or Down to adjust the test temperature
The control responds to the changes in the test temperature.
4. To return to the Main menu, press Back twice. To return to the
Main display, press Back three times.
Servicing and maintaining your TVS
Topics in this section include:
 Enabling and disabling ventilation (below)
 Restoring the factory defaults, parameter 21 (on page 43)
 Saving and restoring settings, parameters 19 and 20 (on page 44)
 Displaying the firmware version, parameter 23 (on page 45)
 Updating the firmware, parameter 22 (on page 46)
 Servicing the control (on page 47)
Enabling and disabling ventilation
Normally, ventilation is enabled and the variable and relay stages function according to the program
settings. This is the default setting and we refer to it as normal operation.
Occasionally, you might want to disable the ventilation. For example, if a room is vacant, you might
want to disable ventilation to conserve energy.
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