User manual
1
Chapter 1: Introducing the TVS
Chapter 1 introduces you to the Three Ventilation Stage Control (TVS). Read chapter 1 before
reading the rest of the manual. Topics in chapter 1 include:
Introducing the TVS below
Becoming familiar with the TVS on page 5
Introducing the TVS
The TVS automatically controls the temperature in a room by operating two variable speed fans and
a single-speed fan or heater. To control the temperature, the TVS operates the connected ventilation
and/or heating equipment according to programmed settings.
Easy to use and program
The control comes with four factory-configured operating programs you can easily adjust for your
situation. The easy-to-use keypad and menu system make the TVS one of the easiest controls to
program. The TVS's advanced and powerful features are never more than a few keystrokes away.
Versatility and peace of mind
The TVS has a 30-foot temperature probe that monitors temperatures and a single zone. For more
versatility, you can connect four temperature probes together and use four-zone averaging.
Temperature probes are available in 1, 6, 30, 75, or 150-foot lengths; you can extend them up to 500
feet using extension cable.
The TVS displays alert conditions such as high and low temperatures, power failure, and low line
voltage, and can also connect to an alarm siren, alarm panel, or auto-dialer. Customizable alarm
settings allow you to choose which alarm conditions you want to be notified about.
Common applications
Livestock applications
Livestock applications include buildings housing calves, rabbits, goats, hogs, poultry, and turkey. In
these applications, the TVS often controls ventilation in a single 20 x 40-foot or smaller room.










