I replaced the condenser fan motor on the small rooftop unit. Wired motor and cycled the unit. The rooftop is now cooling properly. The north unit wasn’t cooling after we replaced the main boards. I found there wasn’t a call for cool at the unit. I went around and turned all the thermostats down and there still wasn’t a call for cooling. I inspected the central control center and tried to find a manual to see how it works. Couldn’t find a manual. I wired up a temporary thermostat on the first floor but the unit still wouldn’t cool. I traced the thermostat wiring in the rooftop and found the previous company had a thermostat wired and set in the return duct. The thermostat was set to auto heat/cool. I adjusted the cool set point to 70 and the heat set point to 65 for now. The unit is now cooling. We need to get manuals for the north rooftop and the central control center. Also randy wants us to quote a different zone / control system. Office will call to schedule that.