INSTALLED 3 TON FUR W/ADC. MADE SURE EQUIPMENT WAS INSTALLED PROPERLY AND WORK AREA WAS CLEAN WHEN FINISH. CHECK BURNERS AND BURNER OPERATION. CHECK HEAT HIGH LIMIT CONTROL, CHECK VOLTAGE AND AMPERAGE ON MOTORS. CHECK COMPRESSOR DELAY SAFETY CONTROLS, AND CONDENSER COIL. CHECK THERMOSTAT, AIR FILTER, AIRFLOW, AND ALL ELECTRICAL CONNECTIONS.