Key Components; Dispensing Taps (Still & Nitro Coffee); Ice Bank (Water Reservoir And Refrig. Unit); Air Compressor & Storage Chamber - Cornelius Nitropro Mini Service And Preventative Maintenance Manual

Nitropro Mini Service Manual
2.2 K C
EY OMPONENTS
The Nitropro Mini consists of these main controls and com‐
ponents (refer to Figs. 2‐1 and 2.2).
Dispensing Taps (Still & Nitro Coffee)
Allow coffee dispensing. Pulling of tap handle triggers
switch that activates outlet solenoid valve (in dispense man‐
ifold); also turns on water inlet solenoid valve and concen‐
trate pump to initiate flow.

Ice Bank (Water Reservoir and Refrig. Unit)

Water/ice‐filled reservoir for chiller lines.
Includes controller to manage refrigeration compressor,
bath agitator, circulation pump and temperature/ice sensor.
Air Compressor & Storage Chamber
Provides air to the gas‐infusion manifold.
Stores compressed air to support high drink volumes. The
compressor is independent and is activated by the storage‐
chamber pressure switch. Storage outlet routes to a pres‐
sure regulator prior to entering the infusion manifold.

Concentrate Pump

Meters input of coffee product from BIB
(Bag In Box) to mixing manifold. Peristaltic pump, servo‐
motor driven.
Product-Mixing & Gas-Infusion Manifold
Interconnected plastic blocks with check valves and a mixing
chamber for mixing, air‐injecting and routing of coffee con‐
centrate, water and air to the dispense manifolds. Three
check valves control flow routing by preventing backflow.
Figure 2‐1 ‐ Front LED‐Backed Merchandiser Removal

Dispense Manifolds

Tap‐handle activated, outlet solenoid valve.
Outlet valve allows product dispensing.

Water-Inlet Solenoid Valve/Regulator

Solenoid valve allows water inlet.
Regulator limits inlet pressure & flow rate.

System Controller Board (Main PCB)

Manages system events and device interactions. Includes
adjustable DIP switch for concentrate‐pump ratio selection.
Also includes PCB switches for fine‐tuning the ratio selec‐
tion.

24Vdc Power Supply

Provides power to Main PCB and the air compressor.
Publication Number: 548000106SER ‐ 4 ‐ © 2019, Cornelius Inc. All Rights Reserved