Perform the spring cooling startup of the common area system. Removed and cleaned all of the filters from each of the indoor units, switch the machine to cooling and allowed it to operate. Monitored and confirmed supply and return air temperature differential of each of the indoor units, checked refrigerant pressures at the condenser and confirm that the unit is operating and cooling properly. Checked and tightened all electrical controls, confirmed operation of all of the fan motors and confirm that the machine is switching from heating to cooling mode properly. The system is operating properly at this time.
