Nuvair MCH60, Operation Manual

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MCH60
Nuvair Page 22 www.Nuvair.com
Oil Pressure
If no oil pressure or a high pressure reading occurs, switch off compressor and contact Nuvair.
1
st Stage
This gauge indicates the pressure inside the first compression stage. If the pressure is not between 45 psi (3
bar) and 60 psi (4 bar), switch off the compressor and contact Nuvair.
2
nd Stage
This gauge indicates the pressure inside the second compression stage. If the pressure is not between 230
psi (16 bar) and 290 psi (20 bar), switch off the compressor and contact Nuvair.
3
rd
Stage
This gauge indicates the pressure inside the third compression stage. If the pressure is not between 940 psi
(65 bar) and 1200 psi (80 bar), switch off the compressor and contact Nuvair.
Final Stage
This gauge indicates the pressure as it exits the compressor. If the pressure fails to reach the pressure switch
set pressure, switch off the compressor and contact Nuvair.
Fill Pressure
This dial-a-pressure switch allows users to set the desired pressure at the high-pressure out connection.
9.0 Overpressure Safety Valves
Each stage of the compressor is equipped with an overpressure relief valve to ensure that the unit will not be
damaged if the pressure shutoff switch fails to work. The final stage valve is pre-adjusted to 3200 psi (225 bar),
4300 psi (300 bar), 4700 psi (330 bar), or 6000 psi (425 bar) depending on the final pressure specified when
the unit was ordered.
Tampering with the safety valve to increase the pressure setting is strictly forbidden. Tampering with
the safety valve can seriously damage the compressor, cause serious injury to personnel and renders
the warranty null and void.
10.0 Pressure Controls
The compressor is equipped with two types of automatic start/stop systems:
Oil Pressure 58 psi (4 bar)
21.75 psi (1.5 bar)
14.5 psi (1 bar)
Cold
Routine Use
Minimum Pressure