User manual

TVS user manual Servicing and maintaining your TVS

When ventilation is disabled:

 Variable stages are off

 Cooling stages (relay) are off

 Heating stages function normally

 The display alternates between the current temperature and Uoff

 Alarms do not display

DO NOT use the disable ventilation function to shut down fans while working on

wiring. When working on any wiring, switch OFF the power at the source.

To enable or disable ventilation

1. Press Program until UENt displays and then press Select.

The display shows the current setting.

2. Press Up or Down to toggle between 0FF and ON and then press

Select.

The control returns to the Main menu.

3. To return to the Main display, press Back.

Restoring the factory defaults, parameter

When your TVS leaves the factory, it comes with default settings and configuration. When you

program your TVS, you change its configuration and settings. Resetting your TVS erases all the

configuration and settings you programmed and restores them to what they were when the control

left the factory.

For a list of the factory defaults, read Appendix C: Factory defaults on page 55.

 Restore the factory defaults only as a last resort. It erases ALL your configuration

and settings and you will have to reconfigure the control.

 If you restore your TVS to its factory defaults, disconnect the power to all loads

and then reconfigure the control before restoring power to the loads.

UENt