CAME OUT FOR AN ESTIMATE ON AIR DUCT CLEANING SYSTEM. PUT IN A SYSTEM WAS USED ON SIDE BY ONE OF OUR GUYS, SIAQ UV 5/2 WTY BUYBACK ON UV ERSA, MADE SURE SYSTEMS WAS INSTALLED PROPERLY AND WORK ARE WAS CLEAN WHEN FINISH, CHECK THERMOSTAT, AIR FILTER, AIRFLOW, COMPRESSOR DELAY SAFETY CONTROLS, ENERGY CONSUMPTION, AND ALL ELECTRICAL CONNECTIONS, EVERYTHING IS WORK GOOD,