With all the EPA phasing out the use of specific refrigerants in the coming years, there is no improved time and energy to update to an Vitality-efficient central air con technique.  The most common alternative is R410A- a non-ozone depleting and eco-friendly alternative. Capacity to read through and interpret wiring https://dantefmsya.spintheblog.com/35401150/detailed-notes-on-furnace-maintenance-and-repair