Purpose – This procedure describes checks and measurements used when troubleshooting an electrical problem located in the load or control circuits o f HVAC equipment.…
Author: matt
For residential and light commercial users, an electric utility company supplies single-phase or three-phase power to users at voltages from 115 volts to 460 volts.…
Troubleshooting electrical problems in HVAC equipment may appear complex. However, electrical troubleshooting can be simplified if the unit’s electrical components are divided into functional groupings…
Purpose – This procedure describes the input voltage measurements commonly made when installing and/or servicing single-phase and three-phase powered HVAC equipment. Measurement o f the…
Removing oil from a compressor with only an oil fill plug is performed using the following general guidelines: 1. If possible, run the compressor fully…
Removing oil from a compressor with a drain plug is performed using the following general guidelines: 1. If possible, run the compressor fully loaded. Then…