and blower motor which were components of a small environmental control 

 system located on the outside of the chamber. This unit provided 

 temperature and htmidity control during decompression. The outer lock 

 contained a small pressure flushing commode and a fresh-water shower 

 head . 



The decompression console, along with certain gas monitoring equipment, 

 was housed in a metal shed on one corner of the decompression barge. 

 The shed was manned by a medical officer and chamber operator during 

 each decompression event. The console contained the valving and gauges 

 required for controlling pressure inside the PTC and either chamber of 

 the DDC. It also contained the master unit for voice communication be- 

 tween the decompression station and the PTC or DDC. Gas monitoring 

 equipment at the station included Beckman oxygen analyzers , carbon 

 dioxide analyzers, and temperature probes. The O2 and CO2 analyzers 

 monitored the atmosphere inside the chamber complex during decompression 

 and, through a tee connection in the gas return line of the habitat 

 Timbilical, provided redundant analysis of these same gasses in the habitat 

 between decompression events. Rack-mounted cylinders of O2 and nitrogen 

 were stored adjacent to the decompression station for use during the O2 

 phase of the decompression cycle and in the event a nitrogen purge was 

 required. 



Figure 7. Decompression Chamber, Internal View 

 11-11 



