Checked systems 1-7 and 9-10. System 1- arrived to main breaker tripped, reset breaker and checked operations. System has a 35amp 2 pole breaker the system says the minimum breaker size should be 36amp and maximum being 60amp. Wire to breaker is also undersized. It’s 9 gauge wire and needs to be 6 gauge to properly transfer voltage. Drain line was also broken, repaired drain line and added a clean out, deep trap, vent and insulation to help with drainage. Photos attached. System 2- quoted recently. System 3- quoted recently. System 4- is functional and operating within manufacturer specifications at this time, refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions. System 5- system is not moving enough air for the system to work properly. Tried to adjust settings and blower speeds but there is no way to do so on this air handler. Will need to increase the size of the air handler for system to function properly. System 6- is fully funct