(Click image for more details)  Quantity in each package: 1 The first in our series of Educational DVDs for Technician Training. Purchase 12 VZDVDs and receive the counter-top display free. (DVD packages also have hanging tabs and can be hung on wall hooks.)

A Portable Classroom Demonstrator for Teaching HVAC Control and Wiring Theory.
The Z•Tech Demonstrator was originally developed to help our own sales force. A few Tech School Instructors commented how nice it would be to have something like that for non-permanant classrooms.

The Z•Tech has the electronic controls of a modern-day multi-stage heat-pump system.