Page 223 - Womens Pavilion

“Oil-Less” Scroll Medical Air

Appendix A: Desiccant Dryer

A.4 Maintenance A compressed air dryer should give long and
trouble free operation if the recommended
preventative maintenance program is carried out.
WARNING:
To protect the lives of patients, always The following is a recommended schedule:
notify the appropriate medical facility
staff before performing any maintenance 1. Quarterly procedure - Clean the auto drain in
or service procedures on the air system. the coalescing fi lter. Monitor the backpressure
Compressed air levels may be aff ected on the purging tower. If the gauge reads more
during maintenance or service procedures. than 0 psig (when purging), check the purge
muffl er for blockage and replace if necessary.

2. Annual procedure - Replace all fi lter
WARNING:
cartridges and purge muffl er(s). Check the
Compressed air can be dangerous unless automatic drain function in the coalescing
safety precautions are observed in the fi lter. Refer to chart located in Section A.4.1 for
use of compressed air and compressed correct system size and part numbers. Contact
air equipment. Completely vent the BeaconMedæs Service at 1-888-4MEDGAS for
internal air pressure to the atmosphere parts.
before disassembling any subassemblies
or components and before doing any 3. Three-year procedure - Change all annual
work on compressed air equipment. To parts. Change desiccant, check valves, and
vent internal air pressure, follow the purge valve(s). See chart in Section A.4.1 for
maintenance shutdown instructions. correct system size and part numbers.

A.4.1 Maintenance Interval

Service Interval Description
Every year Pre-fi lter
Every year After-fi lter
Every year Purge muffl er
Every 3 years Desiccant
Every 3 years Check valve
Every 3 years Tower o-ring
Every 3 years Canister o-ring
As needed Switching valve
As needed Tower pressure gauge
As needed Purge Poppit Valve

Note: All service components are listed as parts
within the service repair kits in Section 5.2

4107 9000 69.06 A-6