The Powerex Medical Refrigerated Air Treatment Center is designed to provide medical breathing air for hospital and medical institutions. This system meets NFPA 99 requirements for Level 1 breathing air. The air purification package shall be sized in conformance with NFPA 99 specifications and consist of the following: Dual refrigerated air dryers, dual filter and regulator banks with sample ports, Dew Point and CO Monitors with alarms, and all bypass piping. Piping to be brass, stainless, or type K copper, and cleaned for medical air use. All components shall be mounted piped and wired to a common skid. The refrigerated air dryers are non-cycling, direct expansion type, using R-134 A refrigerant (CFC free). A hot gas by- pass system maintains a consistent temperature at all load conditions. Heat exchangers are made of copper tube construction and fully insulated. Dryers shall have power on and high temperature lights, suction pressure gage, internal 3-micron filter/separator with stainless steel bowl, and timed electric condensate drain. The system-integrated hygrometer shall be equipped with an LCD dewpoint display and high dewpoint alarm with dry contacts for remote monitoring. The dew point sensor (probe) shall be installed so that the monitored airflow is downstream of the pressure regulator assembly. The sensor shall include an auto calibration feature to ensure the accuracy of the dewpoint measurement. CARBON MONOXIDE MONITOR The carbon monoxide (CO) monitor is provided in an enclosure with LCD display of CO concentrations. The monitor shall continuously display the CO content of the discharge air and shall provide audible and visual high CO alarms. High alarm is set at 10 ppm per NFPA99. Dry contacts are provided for remote monitoring of the high CO A duplex set of filters and regulators shall be provided with block-and-bypass valves, such that one bank can be serviced without disrupting the flow of air to the system. Each bank shall have a coalescing filter, equipped with differential pressure indicators, an activated carbon filter, and an adjustable pressure regulator with gauge. A 75 psig safety valve is provided at the final outlet along with sample ports

Medical Refrigerated Dryers Rev. 4/13/11 DIMENSIONS DIM. DIM. DIM. MODEL A B C Inlet Outlet MDR0258 57" 36" 41" 1/2" 1/2" MDR0358 57" 36" 41" 1/2" 3/4" MDR0558 57" 36" 41" 3/4" 1" MDR0708 57" 36" 41" 1" 1.5" MDR1008 57" 36" 41" 1" 1.5" 1 5" MDR1508 57" 36" 41" 1.5" 1.5" Top View 24” Minimum Clearance for ease of Maintenance for ease of Maintenance Medical Refrigerated Dryers MODEL MDR0258 MDR0358 MDR0558 MDR0708 MDR1008 MDR1508 SCFM @100 PSIG 25 35 55 70 100 150 Pow er Dew per Dryer Point @ in Watts 50 PSIG 205 31oF 253 28oF 410 27oF 589 26oF 930 28oF 1300 27oF Voltage* 115 V 208-230 V 115 V...