Closed-Loop Cooling System

Cold Pump is an air-conditioning system for electrical control panels and enclosures. Four corrosion-resistant models are offered for NEMA 4X enclosures, ranging in size from 1,600 to 8,500 BTU/hr. From ITW Vortec, the air-conditioners are thermostatically controlled, closed-loop systems that use CFC-free refrigerant. Room air is continuously drawn through an external filter, across condenser coils (where it removes heat from the enclosure) and is exhausted out the top external vent.