In Sun City West Arizona, I completed the start up of an evaporative cooler and maintenance of a Lennox package heat pump. For the evaporative cooler I oiled the fan wheel, checked the fan belt, check the pump, the Reservoir, the pad, cleared out scale buildup and turned on water to the system then filled and drained the reservoir. The Lennox heat pump and E cooler are operating properly at this time. Thank you for choosing Hobaica!