Cabinet Coolers 11510 Goldcoast Drive • Cincinnati, OH 45249-1621 • Phone (513) 671-3322 FAX (513) 671-3363 • E-mail: [email protected] • www.exair.com 217 NHP 316SS Cabinet Cooler® Systems Continuous Operation Also available in any of our NEMA ratings, continuous operation Cabinet Cooler systems are recommended when constant cooling and constant positive purge are desirable. Systems for continuous operation include a Cabinet Cooler, cold air distribution kit and filter. ETC (Electronic Temperature Control) units are available in four different models. See above for details. HT Special Cabinet Coolers EXAIR manufactures special NEMA 12 (IP54), 4 (IP66) and 4X (IP66) Cabinet Coolers suited to specific environmental requirements: High Temperature Cabinet Coolers (shown top right) for ambient temperatures of 125° to 200°F (52° to 93°C) are available. Internal components can withstand high temperatures (like those near furnaces, ovens, etc.). Non-Hazardous Purge Cabinet Cooler Systems (shown middle right) are ideal for dirty areas where contaminants might normally pass through small holes or conduits. Under normal conditions, the NHP Cabinet Cooler Systems provide a slight positive pressure in the enclosure by passing 1 SCFM (28 SLPM) of air through the cooler, when the solenoid valve is in the closed position. When the thermostat detects high temperature, it energizes the solenoid valve to pass full line pressure and volume of compressed air to the Cabinet Cooler, giving it full cooling capability. Type 316 Stainless Steel NEMA 4X Cabinet Coolers (shown bottom right) are suitable for food service, pharmaceutical, harsh and corrosive environments, and other applications where 316SS is preferred. Capacities from 275 to 5,600 Btu/ hr. (80 to 1,641 Watts) are available. EXAIR High Temperature Cabinet Coolers, Non-Hazardous Purge Cabinet Coolers and Type 316 Cabinet Coolers are now available from stock. Model Voltage Sample Rate Max Temp Solenoid Valve Setting Temp Supply Current Sensor 9238 120VAC, 50-60 Hz 1/sec. 158°F (70°C) ¼ NPT Push Button 250 mA max Type J Thermocouple 9258 120VAC, 50/60 Hz 1/sec. 158°F (70°C) ½ NPT Push Button 325 mA max Type J Thermocouple 9239 240VAC, 50/60 Hz 1/sec. 158°F (70°C) ¼ NPT Push Button 165 mA max Type J Thermocouple 9259 240VAC, 50/60 Hz 1/sec. 158°F (70°C) ½ NPT Push Button 215 mA max Type J Thermocouple Selecting The Right Model – Know Your System Options (continued) EXAIR’s digital ETC (Electronic Temperature Control) provides precise temperature control for your electrical enclosure. It can accurately maintain a constant temperature that is slightly under the maximum rating of the electronics, permitting just enough cooling for the electronics without going so cold as to waste compressed air. The LED readout of the ETC displays the internal temperature of the electrical enclosure (°F or °C) that is constantly being monitored by a quick response thermocouple. The control activates the solenoid valve (included) when the temperature setting is exceeded. The polycarbonate plastic enclosure of the ETC is suitable for NEMA 12, 4 and 4X environments. (Cabinet Cooler not included.) ETC controls are available within Cabinet Cooler Systems (see pages 222-224) or separately for retrofitting on existing coolers. All ETC enclosures are NEMA 4X (IP66), UL508 and UL94-5V. ETCs are RoHS and CE compliant. ETC™ Electronic Temperature Control
