Arkansas HVACR NewsMagazine September 2024

HVACR NewsMagazine September 2024

Tech News

• Electrical system strain/low voltage to the

• Poor cooling/heating (when you short cycle, you may heat and cool the air rapidly but may still have “stuff” in the home and structure that are hotter or cooler, resulting in radiant discomfort) • Poor ventilation control

rest of the structure during motor/compressor start-up

Dimming lights

•

Contactor/relay contact wear

•

• Premature HSI (hot surface ignitor) failure • Compressor oil loss and lubrication issues • Poor dehumidification (it takes a while for the coil to cool down and dehumidify)

I'm sure you can think of many more.

The goal is to run long and steady cycles without any cutting in and out safeties and a good match of system capacity with the load. This helps us provide comfort, efficiency, and system longevity. What are some short cycling issues you have seen?

— Bryan

Once again we thank Bryan Orr and the HVAC School for sharing their wealth of technical information. Learn more and subscribe at hvacrschool.com

• Poor efficiency and system performance (it takes time for the system to get up to steady-state performance)