Refrigeration Components; Tap Microswitches - Cornelius Nitropro Mini Service And Preventative Maintenance Manual

6.9.4 Refrigeration Components

!
WARNING:
Only trained and certified refrigeration technicians should
service the Nitropro Mini refrigeration system components.
FAILURE TO COMPLY COULD RESULT IN SERIOUS INJURY,
DEATH OR EQUIPMENT DAMAGE.
ALL REFRIGERATION SERVICE PROCEDURES MUST CON‐
FORM TO LOCAL CODES, ENVIRONMENTAL AND PROFES‐
SIONAL‐PRACTICE STANDARDS.
Ensure that the refrigerant charge is captured by appropri‐
ate equipment before the system is opened for the servicing
of pressurized components.
NOTE: It may be helpful to the refrigeration technician to
review the dispenser‐particular guidance in the following
Troubleshooting tables and specific Malfunctions of section
5.0 Troubleshooting.
Table 5‐1: No cooling
Table 5‐2: Warm drinks; Concentrate is warm, water is cold
Additionally, refrigeration information in section 2.1 Nitro‐
pro Functions & Specifications should be helpful:
Table 2‐2 ‐ Refrigerant Type
6.10 T M
AP ICROSWITCHES
Each tap handle activates a microswitch connected to the
Main PCB. The microswitches are mounted on the base
plates of the tap handle assemblies. Access is achieved by
removing the tap‐handles and the mounting rings that
secure each mechanical activator assembly.
1) Shut off power to the dispenser and unplug the power
cord from wall receptacle.
2) Carefully unscrew each tap handle from its activator‐pin
assembly (Fig. 6‐17).
© 2019, Cornelius Inc. All Rights Reserved
Figure 6‐17 ‐ Tap Handle/Microswitch Mounting
3) Unscrew and remove each retainer ring as shown.
4) Carefully lift the surrounding plastic housing off of the
tap‐handle mounts to expose the microswitch assemblies.
5) Remove the 4 screws securing each tap‐handle switch
assembly to the metal bracket and disconnect the wiring
leads (Fig. 6‐18).
Figure 6‐18 ‐ Tap Handle Microswitch Assembly
6) Remove the switch assembly and install the new one.
Mount the assembly on the support bracket and reconnect
the wiring leads.
7) Reinstall the plastic cover over the tap‐handle switch
mountings and secure with the threaded retainer rings.
Reinstall the tap handles.
8) Verify operation of the taps.
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Nitropro Mini Service Manual
Publication Number: 548000106SER