22
4.13
CONDENSER CLEANING (AIR-
COOLED MACHINES)
The condenser requires periodic cleaning. To clean the
condenser, refer to the following steps:
A.
Remove the side panel and pull out the condenser
filter. (Fig. 4-4)
B.
Visually inspect the condenser filter for dirt.
C.
If the condenser filter is dirty, vacuum or brush it
clean. Rinse it with clean water and allow it to dry
before replacing it on the machine.
NOTE
If the condenser is not kept clean, refrigeration effi-
ciency will be lost.
4.14
PREVENTATIVE MAINTENANCE
It is recommended that a preventative maintenance sched-
ule be followed to keep the machine clean and operating
properly. The following steps are suggested as a preventa-
tive maintenance guide.
The United States Department of Agriculture and the Food
and Drug Administration require that lubricants used in food
zones be certified for this use. Use lubricants only in
accordance with the manufacturer’s instructions.
A.
Daily checks
Check for any unusual noise or condition and repair
immediately.
B.
Monthly checks
1. Check drive belts for wear and tighten belts if
necessary. (Refer to section 4.12)
2. Check the condenser filter for dirt. (Refer to
section 4.13).
4.15
EXTENDED STORAGE
Refer to the following steps for winterizing the machine or
for storing the machine over any long period.
A.
Clean all of the parts that come in contact with mix
thoroughly with warm detergent . Rinse in clear
water and dry all parts. Do not sanitize.
NOTE
Do not let cleaning solution stand in freezing cylin-
der or mix pump during the shutdown period.
B.
Remove, disassemble, and clean the front door,
auger shaft, and mix pump. Leave disassembled
during the shutdown period.
C.
Place the plastic auger flights in a plastic bag with
a moist paper towel. This will prevent the flights
from becoming brittle if exposed to dry air over an
extended period (over 30 days).
D.
For water-cooled machines that are left in unheated
buildings, or buildings subject to freezing, the
water must be shut off and disconnected.
Disconnect the fittings at the water inlet and the
water outlet lines of the machine. The fittings are
located at the rear of the machine. Run the
compressor for 2 - 3 minutes to open the water
valve. Blow out all the water, first through the
water inlet, then through the water outlet lines with
air or carbon dioxide. Drain the water supply line
coming to the machine.
E.
Place the Pump OFF/ON switch and the Main
Freezer Power OFF/ON switch in the OFF position.
F.
Disconnect the machine from the source of the
electrical supply in the building.
Figure 4-4 Removing Condenser Filter
WARNING
Hazardous Voltage
The Main Freezer Power switch must be placed in
the OFF position when disassembling for servic-
ing. The freezer must be disconnected from electri-
cal supply before removing any access panel. Fail-
ure to disconnect power before servicing could re-
sult in death or serious injury.
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