TCC VRF Service Spring
Wednesday April 17th, 2024 CGL Madison Heights 9:00am-5:00pm
Bill Purcell + Jason Philips
FAD & NATE 6.0
The advanced VRF service class aims to provide technicians the information, tools, and
knowledge required to successfully troubleshoot, diagnose, and repair Toshiba Carrier Heat
Pump and Heat Recovery VRF systems. The class provides information on commonly used fan and inverter circuit boards as well as
accessory function boards.
We will review each indoor unit circuit board as well, tracing and understanding each relevant
electrical circuit for all major components and their operation.
Circuit board replacement, refrigerant recovery / evacuation, Flow Selector box operation and
controls, refrigerant flow diagrams and unit operation will be reviewed.” VRF Technology Function and Operation CN Connectors and Aux OutputOutdoor unit Diagrams Flow Selector Diagrams Function and Operation CN Connectors and Aux OutputOutdoor unit Diagrams Flow Selector Diagrams Indoor unit Diagrams Board ReplacementSystem Components Refrigerant FlowService Functions Compressor Backup Procedure Troubleshooting DynaDoctor