18
Manual: NGP-300D
6.
The membrane pressure gauge should read between 85 and
105 PSI. See Figure 17.
7.
Record the time it takes for the nitrogen storage tank to reach
75 PSI. It should typically take 20 minutes.
NOTE:
The air compressor will cycle on and off during this
process.
5.
Open the petcock on the nitrogen storage tank (bottom tank)
and relieve the pressure until the Nitrogen Solenoid light
turns ON. See Figure 16. The Nitrogen Solenoid light should
turn on at 60±3 PSI on the nitrogen tank pressure gauge.
Figure 16
Figure 17
Nitrogen Storage Tank Petcock
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