Two DVDs are included; one that teaches Variable Speed System Theory, the second instructs the Tech how to use the VZ-7 to troubleshoot these systems. Set-Up - Techs get a direct digital read-out of a system's RPM and CFM to assist in set-up....
The digital display reports CFM, RPM, Volts, and any error codes discovered. The Variable Speed Zebra (Part VZ-7) is a comprehensive tool for working with ECM Motors and the circuit boards on the furnace or air handler that they require to operate properly....
Introducing the Variable Speed Zebra, a powerful tool designed for ECM system diagnostics and analysis....
Edm tester with motor adapters included....
Get a visual display of motor RPM and the calculated CFM (on most systems). -And finally, IF a problem is traced to the motor, one switch press starts an automatic analysis to clearly indicate if the problem is in the motor's electronics, or one of...