Vogt Tube-Ice HFO10, Руководство по обслуживанию

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7-1
Chapter 7 Maintenance
To achieve the best performance from the HFO10, follow the maintenance instructions listed in this chapter. For
questions concerning the maintenance or upkeep of your equipment, contact Vogt Ice, LLC.
Cleaning
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 machine is equipped
with a Clean mode, which circulates the cleaning solution through the freezer to remove mineral scale using the
water pump. Detailed instructions are also attached to the machine.
To clean your Tube-Ice® machine, follow these steps:
1. Pump down the machine and make sure the crankcase heater is working properly. This will eliminate the
possibility of refrigerant migrating to the compressor while circulating warm water through the freezer
(evaporator).
2. Set the Clean/Off/Ice selector switch to the Off position. If the machine is running, it will shut down on
completion of the next harvest period.
3. Remove ice from the storage area or cover the storage opening.
4. Shut off the water supply and drain the water tank by opening the drain valve. Remove any loose
sediment from the tank.
5. Close the drain valve and fill the water tank with warm water. Close the petcock valve on the water
pump during the cleaning period. The tank holds approximately 15 gal (57 L).
6. Add the ice machine cleaning solution to the water tank according to the directions of the cleaning
solution manufacturer. Vogt recommends Nu-Calgon
® Ice Machine Cleaner, which is a food-grade liquid
phosphoric acid.
7. Inspect the water distributors by looking through the transparent freezer cover. It may be necessary to
clean the cover before inspecting. If required, remove the cover. Clean and remove any solid particles
from the two orifices in each distributor. Clean the rubber cover gasket and reinstall the cover.
8. To run the pump only, set the selector switch to the Clean position and press Start .
9. For up to two hours (max), circulate the cleaning solution until deposits are dissolved or the solution is
neutralized. Repeat cleaning if necessary.
10. Press Stop to stop the pump, then drain and flush the water tank with fresh water.
11. Open the water supply to the machine.
12. Drain, flush tank again, and refill it with fresh water.
13. Clean the inside of the ice storage area and remove any solution that entered during the cleaning
process. Remove the cover, if one was installed, over the opening into the storage area.
To return the machine to ice-making operation, follow the steps below:
1. Make sure the water tank drain valve is closed and the Clean/Off/Ice selector switch is in the Off
position.
2. Turn on the water supply and refill the tank with clean water.
3. Manually open the thaw gas solenoid valve (D) by running the valve stem in. This increases the pressure
in the evaporator, allowing the machine to operate. After approximately one minute, put the thaw gas
solenoid valve (D) back into the automatic position.
4. When the tank is full, turn the Clean/Off/Ice selector switch to the Ice position and push Start . The
machine immediately begins ice production.
Check that the adjustable blowdown petcock valve on the recirculating water pump is adjusted properly. The
valve should be adjusted to the minimum rate required to maintain production of clear ice. This should be no
more than 1 gal (3.8 L) per minute for most water sources.