AllTradesJournal

Refrigeration

1 article

Technician using the Copeland Mobile app on a smartphone to diagnose an HVAC compressor unit in a workshop.
How-To

How to Diagnose HVAC Compressor Units with Copeland Mobile

A Copeland compressor, model 2DA3-060L-TFC, charged with R404A, showed specific readings: 27# suction, 185# discharge, 209 volts, and a 13.

Scott Ramirez·August 9, 2026