Arkansas HVACR NewsMagazine November 2021

HVACR NewsMagazine November 2021

Tech News

During

the

heating season, sending the outdoor unit into a forced defrost is an important step. Ensuring that the defrost sensors are properly operating can prevent a future service call. During runtimes in cold weather, you may be able to observe the freeze patterns on the outdoor coil. Freeze patterns on an outdoor coil in heat mode should be uniform across the entire coil. Confirming the reversing valve operation is critical during the heating season. When the system is in defrost, make sure to confirm that the heat strips inside are actually operating. you’ve finished balancing and checking the charge, always double-check the Schrader cores in the service ports for leaks. I always When

apply a small amount of Nylog Blue to the caps to help prevent leaks and keep the caps from getting stuck the next time a technician goes to remove them.