Heating, ventilation, air conditioning and refrigeration products, namely, air conditioners; air handlers, namely, equipment used to circulate in-door air; chillers, namely, equipment used to chill in-door air with the use of chilled water or refrigerant; condensing units, namely, equipment that condenses refrigerants for use in air conditioning systems; fan coil units, namely, equipment comprised of a fan and coils for use with chilled water, hot water or refrigerants to blow cooled or heated air; heat pumps, ventilating louvers and school room HVAC units