PERFORMED 13 POINT MAINTENANCE TUNE-UP FOR HEATING UNIT. CLEAN AND CHECK BURNERS AND BURNER OPERATION. CHECK HEAT EXCHANGER AND HIGH LIMIT CONTROL. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK THERMOSTAT, AIRFLOW, AIR FILTER, FAN CONTROL, ENERGY CONSUMPTION, AND ALL ELECTRICAL CONNECTIONS. LUBRICATE ALL NECESSARY MOVING PARTS AND ADJUST BLOWER COMPONENTS. INSTALLED 5 TON BASIC5/S HP/AH. MADE SURE EQUIPMENT WAS INSTALLED PROPERLY AND WORK AREA WAS CLEAN WHEN FINISH.