Air-Compressor Pressure Verification - Cornelius NITROPRO MINI Service And Preventative Maintenance Manual

Nitropro Mini Service Manual
5.0 TROUBLESHOOTING (Cont.)

5.1 Air-Compressor Pressure Verification

This procedure is a measurement of the air pres-
sure in the air storage chamber to determine if
the air pump is working properly and shutting off
when the pressure is approximately 80 psi (552
kPa).
1) Shut off power to the Nitropro unit.
2) Inside the cabinet, disconnect the dispense-
assembly air line from the back wall air inlet.
Connect a 100 psi (689 kPa) air pressure gauge
with a quick-connect fitting to the Air Inlet line
(Figure 5-1).
Figure 5-1 - Air Inlet Line
3) Apply power to the unit.
4) Dispense a Nitro coffee drink or two to trigger
air-compressor operation.
5) Observe the pressure gauge.
6) The compressor should stop running at a read-
ing of 75 to 85 psi (517 to 586 kPa). If the pres-
sure is out of range, check for leaks and check/
replace the storage-chamber pressure switch.
Publication Number: 548000106SER - 24 - © 2019, Cornelius Inc. All Rights Reserved