Upon my arrival I performed the approved repairs on the zoned system. I removed the failed comfort control circuit, both dampers, installed new comfort control circuit, installed new 16x16” PO/PC damper and new 12” round PO/PC damper, redid wire terminals, sealed around both dampers then ran a performance and safety testing. I found both zones operating properly when there is a demand called for and when the demand is no longer called for allowing the dampers to open and close as they should. I verified system had a good Delta T across the coil, tested the amp draws and electrical comments inside and out, and checked systems pressures. Given its 90° in the home it was difficult to acquire and accurate pressure reading. With the temperature split being good we will verify the pressures again at the Bi-annual maintenance inspection once the home is at a normal operating temperature inside. I also found that the voltage enhancement system on the outdoor unit was just sitting in the box. I