Tech Tips

June 1, 2018

3 Ways Emptying The Oil Can Help

Often overlooked, emptying the oil from a changed compressor can help you in several ways. You can see if all the oil was removed from the system You can determine if the compressor was burned out, requiring a suction line drier to be installed and Acid Scavenger or Acid Away to be used. It makes brazing the suction line […]

May 7, 2018

Conditioning Hot Spots With Mini-Splits

Author: Brian Baker, HVAC Tech Representative Have you ever been on a call where a homeowner says, “This one room in my house is always uncomfortable”?  We have all been there. We have adjusted airflow, changed out ductwork, added supply vents, enlarged the system, etc. Have you tried a mini split? Ductless mini-splits will cool only […]

May 2, 2018

Measuring For a Curb Adapter

Sometimes it’s necessary to do a field measure to verify an existing curb’s dimensions. If this applies to you, you’re in luck. CDI has provided an easy-to-follow guide that will help you through the process. Please fill out the Measure Drawing and Measure Template forms, making sure to note which opening is the return, and which opening is […]

May 1, 2018

Open Compressor Windings

To determine if compressor windings are open or shorted, perform this simple test. Measure the Ohms across 3 compressor terminals using an open continuity setting on your multimeter Common to Run should have the lowest resistance Common to Start should have the 2nd largest resistance Run to Start should have the largest resistance In all single-phase […]

April 3, 2018

Tech Tip: Open Compressor Windings

Performing a compressor winding test can determine if the compressor windings are open or shorted. Use your multimeter in continuity setting, measuring the Ohms across 3 compressor terminals Common to Run should have the lowest resistance Common to Start should have the 2nd largest resistance Run to Start should have the largest resistance In all single-phase […]