Cornelius MILLENNIUM MJ40-6PB, Installation & Service Manual

Page: 11 / 33

10
a.
The dispenser’s ventilation grilles and the
condenser fins should be cleaned periodically to
maintain efficient refrigeration and to avoid
compressor failure. The condenser fins can be
cleaned with a vacuum cleaner or a soft bristle
brush.
b.
Clean the exterior surfaces of the
compressor, agitator motor, fan motor, and fan
blade with a damp cloth to wipe off the
accumulated dust.
Ice Water Bath Cleaning:
The water bath should be cleaned to obtain
maximum cooling efficiency. It is recommended
that the water bath be cleaned two to four times
annually, depending upon local conditions and/or
as required by state and local health departments.
A convenient time to do this is at the time the
dispenser is being sanitized. To save time, the
water bath can be drained while the dispenser is
being sanitized.
a.
Remove the cup rest and splash panel to
access the water bath’s drain hose. Extend the
drain hose to a suitable waste receptacle and
allow the water bath to drain.
b.
Remove the dispenser’s top bonnet by
removing the two screws located on the top of
the bonnet. While lifting the bonnet up and away
from the dispenser, unplug the merchandiser
electrical cord from the power strip located on
the refrigeration deck.
c.
In order to remove the refrigeration deck for
the water bath and evaporator cleaning, remove
the two screws that secure the deck to the cabinet
structure. Unplug the refrigeration deck’s main
power strip cord from the dispenser’s power
cord. Disconnect the red, white and blue 12 pin
plugs from the electrical box. Disconnect the key
switch a by unplugging the white 2 pin plug at
the transformer.
Note: It will be necessary to melt the ice bank to
be able to pull the refrigeration deck up and
away from the dispenser. Warm water may be
used to accelerate the melting. In order to
prevent ice bank control damage, do not direct
the warm water stream on to the sensing bulb of
the ice bank control. Never use an ice pick or
other instrument to remove ice from the
evaporator. Such practice can result in a
punctured refrigerant circuit or damage to the
water bath tank
.
d.
Once the ice bank is sufficiently melted, lift
the entire refrigeration deck up and away from
the water bath by lifting the deck using it’s
service handle strap.
e.
Prepare 1 gallon (3.9 L) of cleaning and
sanitizing solution (see “ Sanitizing the
Concentrate Lines & Valves” ). Pour the cleaning
and sanitizing solution into the water bath and
clean the sides and bottom of the tank, the
product coils, and associated brackets with a
fiber brush.
f.
Utilizing the cleaning and sanitizing solution
in the water bath, the fiber brush, and a clean
cloth soaked with sanitizing solution, clean the
refrigeration deck’s evaporator coils, agitator
motor shaft and blade, and the ice bank sensing
bulb.
g.
Drain the cleaning and sanitizing solution
from the water bath and rinse/flush all the
components with clean water.
h.
Re-install the refrigeration deck into the
water bath and secure with two screws.
i.
Connect the refrigeration deck’s power strip
to the dispenser’s power cord. Connect the red,
white and blue 12 pin plugs to the electrical box.
Connect the key switch to the transformer.
j.
Fill the water bath with cool potable water
until water begins to flow from the overflow
tube.
k.
Plug the merchandisers power cord into
power strip located on the refrigeration deck and
re-install the top bonnet. Secure the bonnet
assembly with two screws.
l.
Install the splash panel and cup rest and plug
the dispenser’s power cord into the electrical
outlet.