VT20M Pgrm Fan Main Ctrl

Art. no.: 45386

The VT20M intermittent Fan Control is designed to meet whole-house ventilation needs outlined in ASHRAE 62.2 Standard.


The model VT20M controller enables the exhaust fan to run at a pre-set speed for a pre-set portion of each hour, 24 hours a day. The high speed override button enables the fan to run at full speed for 20 minutes when needed, for example to vent steam from a bathroom.


Where a single exhaust fan is ducted to draw air from multiple locations, up to three auxiliary fan controls, VT20A, may be used with the main controller, VT20M. The auxiliary controls may be installed in secondary bathrooms etc., where high speed overrides is required.

In stock earliest delivery 29.02.19 Show availability
  • Aug 29, 2018
  • Sep 09, 2018
  • 500
  • 500

Technical parameters

Norminal data
Voltage (Nominal) 115 V
Input current 2.5 A
Dimensions and weights
Weight 0.5 lb
Document filename Document filetype
407392 VT20M-VT20A OIPM EN FR ES.PDF Manual