Air Pressure Regulator; Mixing - Infusion Manifold - Cornelius Nitropro Mini Service And Preventative Maintenance Manual

Figure 6‐3 ‐ Mixing‐Dispensing Assembly in Cabinet

6.4.1 Air Pressure Regulator

1) Unscrew the black, threaded ring under the regulator
adjustment knob and the bracket. Withdraw the regulator
from its mounting bracket to access the air hoses.
2) Unfasten the air hoses. noting or marking their locations.
Remove the regulator.
3) On the old regulator, turn its adjustment knob clockwise
and count the turns until it stops.
4) On the new regulator, turn its adjustment knob clockwise
until it stops (closed). Then open it the number of turns
counted in step 3.
5) Connect the new regulator to the air hoses.
6) Reinstall the regulator in reverse order.
7) Confirm operation and adjust as required.

6.4.2 Mixing - Infusion Manifold

1) On the underside of the assembly baseplate, remove the
screws securing the mixing‐infusion manifolds (Fig. 6‐3).
2) Use tape and a marker to label the five hoses.
3) Loosen the C‐plate retainer screws where the four hoses
connect to the manifold (Fig. 6‐4).
4) Move a retainer pate aside and rotate the hose fitting
back and forth while withdrawing it from lthe manifold.
Remove the four fittings. Check/replace their o‐rings as
needed.
5) Carefully remove the threaded, hose‐nipple fitting from
the infuser manifold by first removing the hose clamp using
side cutters or the recommended Oetiker HIP 2800 Es
crimping/cutting tool (see Fig. 6‐5). Cut the clamp open.
© 2019, Cornelius Inc. All Rights Reserved
Figure 6‐4 ‐ Mixing Manifold Hose Fittings Removal
!
CAUTION:
Be careful to avoid damaging the tubing when removing the
hose clamp.
Figure 6‐5 ‐ Hose Clamp Removal (Oetiker Tool)
6) Remove the hose and unscrew the threaded, hose‐nipple
fitting. Clean off the Teflon tape and apply new tape (or use
an NSF 61 pipe‐sealing dope, such as T Plus 2 by Rector
Seal).
7) Remove the mixing‐infusion manifold and place the new
one in the mixing‐dispensing assembly.
8) Reinstall the hoses in reverse order. When tightening the
threaded, hose‐nipple fitting in the infuser manifold, tighten
it finger tight and then rotate it 2 to 3 turns to prevent leak‐
age. Use the Oetiker crimping tool to install the hose clamp
on the hose‐nipple fitting.
9) Secure the manifold assembly to the baseplate by rein‐
stalling the underside screws.
10) Reinstall the mixing‐dispensing assembly in the cabinet,
operate the dispenser and check all the manifold hose con‐
nections for leaks.
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Nitropro Mini Service Manual
Publication Number: 548000106SER