16.Maintenance and Cleaning Instructions
16.1 General
The periods and the procedures for maintenance and cleaning are given as guides and are not to be construed as absolute or invariable. Cleaning, especially, will vary depending upon local water and ambient conditions and the ice volume produced; and, each ice maker must be maintained individually, in accordance with its particular. location requirements.
16.2 Icemaker
The following maintenance should be scheduled at least twice per year on these ice makers.
1.Check and clean the water line strainer.
2.Check that the ice maker is levelled side to side and in front to rear directions.
3.Clean the water system, the evaporator, the bin and spray platen using a solution of Ice Machine Cleaner.
Refer to procedure 15.3 cleaning instructions and after cleaning will indicate frequency and procedure to be followed in local areas.
NOTE Cleaning requirements vary according to the local water conditions and individual user operation. Continuous check of the clarity of ice cubes and visual inspection of the water spraying parts before and after cleaning will indicate frequency and procedure to be followed in local areas.
4.With the ice machine and fan motor OFF on air cooled models, clean condenser using vacuum cleaner, soft brush or non metallic brush.
5.Check for water leaks and tighten drain line connections. Pour water down bin drain line to be sure that drain line is open and clear.
6.Check size, condition and texture of ice cubes. Perform adjustment of DIP SWITCH keys as required.
7.Check the ice level control sensor to test
Put a shovelful of ice cubes in contact with the control sensor during the defrost cycle.
This should cause the ice maker to shut off at the end of the defrost cycle and the light up the 3rd RED LED.
Within a few seconds after the removal of the shovelful of ice from the sensing probe, the ice maker restarts in freezing cycle.
NOTE The RANGE OF THE ICE LEVEL CONTROL SENSOR can be adjusted as shown on table D of PRINCIPLE OF OPERATION; its cut out setting remains however at +2˚C (35˚F).
8.Check for refrigerant leaks.
16.3Cleaning Instructions of Water System
1.Remove the rear and top panels to gain access either to the control box or to the evaporator.
2.Wait till the end of defrost cycle then, with the help of a normal screwdriver, turn the program selector head on STAND BY position to temporarily stop the operation (Fig. 10). + (Fig. 8) (R134A Machines Fig. 7).
Fig. 10
3.Prepare the cleaning solution by diluting in a plastic container one or two litres of warm water
WARNING The Ice Machine Cleaner contain: Phosphoric and Hydroxyacetic acids.
These compound: are corrosive and may cause bums if swallowed, DO NOT induce vomiting. Give large amount: of water or milk. Call Physician Immediately.
In case of external contact flush with water.
KEEP OUT OF THE REACH OF CHILDREN.
4.Scoop out all the ice cubes stored into the bin in order to prevent them from being contaminated with the cleaning solution then flush out
the
water from the sump reservoir by removing the plastic plug.
5.Remove the evaporator cover then slowly pour onto the evaporator platen the cleaning solution. With the help of a brush dissolve the most
resistant and remote scale deposits in the platen.
6.Set the program selector head on CLEANING/RINSING (Fig. 11) + (Fig. 9).
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