2ND MAINTENANCE TUNE-UP UNDER SERVICE AGREEMENT FOR HEATING UNIT. INSTALL 3 TON ELECTRIC FURN 7 YR P& L. CLEAN AND CHECK BURNERS AND BURNER OPERATION. CHECK HEAT EXCHANGER, AND CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK THERMOSTAT, AIR FILTER, AIR FLOW, FAN CONTROL, HIGH LIMIT CONTROL, ENERGY CONSUMPTION, AND ALL ELECTRICAL CONNECTIONS. LUBRICATE ALL NECESSARY MOVING PARTS AND ADJUST BLOWER COMPONENTS, EVERYTHING IS RUNNING GREAT.