Vogt TUBE-ICE P-118F, Service Manual

Page: 53 / 115

P118F Service Manual
MAINTENANCE
1/6/09
7-1
7. Maintenance
Ice Making Section. The ice-making section of the Tube-Ice
®
machine should be cleaned at least
twice a year (more often if water conditions cause mineral build-up). Use an approved food-grade
ice machine cleaner. The water pump is used to circulate the cleaner through the system by setting
the “On/Off” switch to “Off," the “Ice/Clean” to “Clean” and starting and stopping the pump by this
“Ice/Clean” switch. For complete instructions, refer to the “Cleaning Procedure” attached to the
equipment and duplicated here.
Cleaning Procedure
1. Before cleaning any Tube-Ice machine make sure the crankcase heater is working properly. When the
crankcase heater is not working there is a possibility for refrigerant evaporated by warm circulating water
to migrate to the compressor during the cleaning operation.
2. Set ‘On/Off” toggle switch (TS-2) to “Off” position. If the machine is running, it will shut down on
completion of the next ice harvest period.
3. Remove ice from storage area or cover opening into it.
4. Shut off water supply and drain water tank (7) by opening drain valve (39). Remove any loose sediment
from tank.
5. Close drain valve (39) and fill water tank (approximately 60 gallons) with warm water. Close the petcock
on the water pump during the cleaning period.
6. Add 160 ounces (8 ounces per 3 gallons) of Calgon
®
ice machine cleaner (a food grade liquid phosphoric
acid) to water tank during the refill period.
7. Inspect the water distributors by looking through clean freeze cover. If required, remove the cover.
Clean and remove any solid particles from the distributor orifices (two orifices in each distributor). Clean
the rubber cover gasket and reinstall the cover.
8. To run the pump only, set the toggle switch (TS1) to the “Clean” position and press “Start”.
9. Circulate cleaning solution until deposits are dissolved or solution is neutralized. Repeat cleaning if
necessary.
10. Press “Stop” button to stop pump, then drain and flush water tank with fresh water. Open water supply to
machine.
11. Drain and flush tank and then refill with fresh water.
12. Clean inside of ice storage area and remove any solution that entered during the cleaning process.
Remove cover if one was installed over opening into storage area.
13. Start ice making cycle by setting the “On/Off” (TS2) switch to “On”. Check for water leaks around the
freezer cover and tighten nuts if needed.
14. Adjust setting of pump petcock per instructions under “Adjustable Blowdown” in Section 9.