Performed QA on Trane Gas Furnace/Heat Pump system. Reviewed programming on system. Setup the Heat Pump and Gas Furnace lockout set points. Also increased cooling CFM air flow to 400 CFM per ton. Tested the wet switch and ez trap safeties. Poured water through the ez trap and through the furnace drains. Completed checklist form in system. Called David before leaving to let him know about the QA since they were not home during the visit. No additional follow up needed.