Vollrath F111 - Manual (Page 26)

Owner’s Manual #513632-5 Rev.1 20 E111I/F111I Model Machines
4.9 CONDENSER CLEANING
The air-cooled condenser is a copper tube and aluminum
fi n type. Condensing is totally dependent upon airfl ow.
A plugged condenser fi lter, condenser, or restrictions in
the louvered panel will restrict airfl ow. This will lower the
capacity of the system and damage the compressor. The
condenser must be kept clean of dirt and grease. The
machine must have a minimum of 3” (7.5 cm) of ventila-
tion on the right and left sides of the unit for free fl ow of
air. Make sure the machine is not pulling over 100° F (37°
C) air from other equipment in the area.
The water-cooled condenser is a tube and shell type. The
condenser needs a cool, clean supply of water to properly
cool the machine, inlet and discharge lines must be 3/8”
I.D. minimum.
The condenser and condenser fi lter require periodic clean-
ing. To clean, refer to the following procedures.
1. Remove the right side panel and the rear panel.
2. To remove the condenser fi lter, grasp the top and
pull off. Visually inspect for dirt. If the fi lter is dirty,
shake or brush excess dirt off the fi lter and wash
in warm, soapy water. Once the fi lter is clean rinse
thoroughly in warm, clear water and shake dry,
taking care not to damage the fi lter in any way.
3. Visually inspect the condenser for dirt by shining
a light through the coil from the back (inside) of
the condenser.
4. If the condenser is dirty, place a wet towel over
the outside of the condenser.
5. Using compressed air or a CO2 tank, blow out
the dirt from the inside of the condenser. Most of
the dirt will cling to the wet towel.
NOTE
If the condenser is not kept clean, refrigeration ef-
fi ciency will be lost.
4.10 PREVENTATIVE MAINTENANCE
It is recommended that a preventative maintenance
schedule be followed to keep the machine clean and
operating properly. The following steps are suggested as
a preventative maintenance guide.
The United States Department of Agriculture and the Food
and Drug Administration require that lubricants used in
food zones be certifi ed 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.
Inspect for worn or broken parts and replace
as necessary. Check the wear line on the auger
fl ights and replace as needed.
B. Monthly checks
Check the condenser fi lter for dirt. (Refer to section
4.9).
C. Quarterly Checks
Check drive belts for wear and tighten belts if
necessary. (Refer to section 4.8)
4.11 EXTENDED STORAGE
Refer to the following steps for storage of the machine
over any long period of shutdown time:
A. Clean thoroughly with warm detergent all parts
that come in contact with mix. Rinse in clear water
and dry all parts. Do not sanitize.
NOTE
Do not let cleaning solution stand in machine barrel
or mix pump during the shutdown period.
B. Remove, disassemble, and clean the front door,
and auger shaft. Leave disassembled during the
shutdown period.
C. Place the auger fl ights and auger support bushing
in a plastic bag with a moist paper towel. This will
prevent them from becoming brittle if exposed to
dry air over an extended period of time (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 water inlet fi tting. The fi tting is located at the
rear of the machine. Run the compressor for 2 - 3
minutes to open water valve (the front door must
be attached for the compressor to run). Blow
out all water through water inlet. Drain the water
supply line coming to the machine. Disconnect
the water outlet fi tting.
E. Place the Main Freezer Power OFF/ON switch
in the OFF position.
F. Disconnect the machine from the source of
electrical supply.