10-1 Arrival; Customer reporting upstairs unit is out. Pedro was there 7/9 for main: Arrived on site for maintenance. No one was in the building. Someone left unit running, started outside. Washed down condenser. Checked pressures of condenser, Subcooling 12 Superheat 13.4 Unit was a R22 with a txv Low pressure 66 High pressure 173 Was let inside the building. Checked out evaporator coil. Coils are completely rusted. Condensation pan is rusted out. Checked temp split from return and supply duct from directly the air handler. Split peaked at 15 difference. Updated customer on status of unit. Customer acknowledged and signed off.
