﻿GET_GEVOMechL2_11_01_01_36 - ANIMATION Screen
1
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During compressor unloading, the CMV, which is a solenoid-operated valve, is energized and closes to force air pressure to act on the compressor unloader valves.

2
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The unloader valves physically force the compressor intake valves to remain open, preventing the compressor from building pressure.

3
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Although the compressor drive motor may be running, since the compressor cannot build air pressure, the compressor is operating in an unloaded condition.

4
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<b>Note:</b> For normal automatic operation of the air compressor, the compressor cut-out valve must be open, allowing air to flow to the ARPS, the CMV must be unlatched (that is, not locked in an energized position), and the governor test probe must be installed.