Upon my arrival in Dale, I performed a A/C cooling evaluation found that system are working good at this time, the unit for the downstairs main house needs to get a cleaning and so does the guest house system. Customer choose HK2B for this systems. Will need to return with the the sprayer and 3/4 copper insulation about 12 feet to insulation suction lines on the outdoor unit and the suction line in the closet on the guest house.