Amico NFPA Triplex SCD Modular Stack Mount - Manual (Page 21)

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E. Air Treatment Centre
Provide redundant medical air treatment systems including desiccant dryers, filters, and purifiers sized for peak
calculated demand. Dew point and carbon monoxide monitoring Medical Air Treatment shall include:
1. Desiccant dryers producing a -40˚F (-40˚C) pressure dew point.
2. Dryer purge flow control through an integral dew point based purge control system. Purge
controllers using desiccant temperature are not acceptable. Drying units shall provide a numerical
indication of the outlet dew point and initiate an alarm when the outlet dew point exceeds the
manufacturer’s pre-set limit.
3. Mounted pre-filter with corrosion-resistant housing rated for 0.01 with automatic drain and
element change indicator at the inlet to each dryer.
4. Final line filters rated for 0.1 particulate after filter with element change indicators, duplexed final
line regulators, and duplexed safety relief valves shall be factory mounted and piped at the outlet of
each dryer.
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