Bleed the air and humidity in the refrigerant circuit. Take away the caps with the two-way and 3-way valves and through the services port and hook up a vacuum pump hose towards the company port. Many of these models have remote controls to be able to simply flip them on https://airconditioninginstallati87429.post-blogs.com/47983368/the-basic-principles-of-air-conditioning-installation-lancashire