One of the upgrades we offer at our company is the White-Rodgers SureSwitch. It's a little different from most standard contactors, and it's imperative to wire system accessories, such as crankcase heaters, correctly. In our latest video, Ty Branaman teaches our techs how to wire crankcase heaters. You can watch it at https://buff.ly/6J0W0GU or on our YouTube channel! | HVAC School

Crankcase heaters have an important job: they keep refrigerant from migrating to the compressor during the off cycle. As such, we need to take a thoughtful approach to wiring them depending on what we have available, whether that's a single-pole contactor, a double-pole contactor, or a White-Rodgers SureSwitch. Our latest video covers some tips for crankcase heaters and refrigerant charging. You can watch it on our website at: https://buff.ly/lfaBshd | HVAC School