How do I change the operating modes on my Broan VB20W push button timer?

[HarleyAnn]

The Broan VB20W 20-Minute Push Button Timer offers several operating modes to suit your ventilation needs. Switching between these modes is simple. To change the mode, press the MODE key on the timer. The LCD screen will display the current mode. Here's a breakdown of the modes:

1. Standby Mode: The unit is in standby mode by default, responding only to override wall controls. The LCD screen will show the house icon, indicating the control is powered on.

2. Recirc Mode: Air is recirculated within the house at high speed.

3. 20 min/h Mode: The ventilation unit exchanges air intermittently in a one-hour cycle. It's off or recirculating for 40 minutes and then exchanges air for 20 minutes at low speed. This cycle repeats.

4. Cont Mode: Air is exchanged with the outdoors at the minimum blower speed.

5. Smart Mode: Ventilation is managed based on indoor humidity and outdoor temperature, optimizing ventilation for house comfort.

You can select the desired mode by pressing the MODE key until the mode you want appears on the display. For more details, consult the Broan VB20W 20-Minute Push Button Timer instruction manual or the Broan website.