Apollo Guide
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Service Propulsion System Propellant Tank Indicators
Shows temperature and Pressure of service propulsion subsystem tanks.
TEMP provides constant temperature in propellant tanks.
PRESS indicators show pressure in the helium (He), fuel(FUEL), and oxidizer (OXID) tanks. The helium tank pressure indicators also can be used to show pressure in the nitrogen storage tank of either of the redundant engine pneumatic valve control system, depending on the position of the PRESS1 NO switch at the bottom of the panel.
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