Page 203 - Med Plaza and Cancer Center

"Oil-Less” Medical Air Medical Systems

Appendix A - Desiccant Dryer

A.2 Operation (continued)

A.2.3 Normal Start-up

This procedure is to be followed when the dryer has been shut down for a short period during which time the
desiccant has not been exposed to wet gas.

1. Start up the compressor if shut down.

2. Set the appropriate dryer selector switch to controlled purge.

3. Slowly OPEN the dryer inlet isolation valve.

4. Slowly OPEN the dryer outlet isolation valve.

5. Check operation of the dryer.

A.2.4 Maintenance Shut Down

1. CLOSE the dryer outlet isolation valve.

2. CLOSE the dryer inlet isolation valve.

3. Allow the dryer to continue to cycle until the purge exhaust fully depressurizes both chambers.

4. Switch off electrical power to the dryer by removing the fuse.

WARNING: Display prominent notices indicating that maintenance is being carried out.

A-4