NASA-LLIS-0032
Lessons Learned - Displaced Heating, Ventilating, Air Conditioning (HVAC) Controls
| Organization: | NASA |
| Publication Date: | 17 September 1992 |
| Status: | active |
| Page Count: | 2 |
scope:
Description of Driving Event:
The HVAC chilled water boost pumps are located on the 120-foot level of the rotating service structure (RSS). The start/stop controls and circuit breakers (disconnects) providing power to the pumps are located in the motor control center at the RSS 215-foot level; therefore, there is no local control. When maintenance personnel are working on the pumps, a possibility exists that someone could re-apply power. The start/stop controls and circuit breakers can not be locked out, physically, to prevent inadvertant actuation.
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