Viking VUAR140 Troubleshooting Guide download pdf (Page 18)

WHAT’S IN WATER

INGREDIENT EFFECT CORRECTION

A. IT AFFECTS ICE QUALITY

Algae or Sulfides Objectionable Carbon Filter

Taste and Odor

Minerals: Cloudy Ice 1. Check:

Sodium Slow Cutting a. Water flow restriction,

Potassium Refreezing b. Correct siphoning.

Manganese 2. Polyphosphate feeder or

Calcium water softener.

3. Change water source.

B. IT AFFECTS ICE MAKING

Iron Staining 1. Citric acid or liquid ice machine

Chlorine (Aesthetic only) cleaner. (Citric acid works best)

Manganese 2. Water softener AND iron filter.

Permanent Scale 1. Abrasive cleaning.

Hardness 2. Polyphosphate feeder or water

Calcium or Magnesium softener reduces or eliminates

Sulfates abrasive cleaning.

Chlorides

Nitrates

Temporary Scale 1. Liquid ice machine cleaner.

Hardness 2. Polyphosphate feeder or water

Calcium or Magnesium softener reduces frequency of

Carbonates cleaning by 50%.

RECOMMENDATIONS:

Water softeners or polyphosphate feeders are not cure-all, but do reduce (and in some cases, prevent)

scale build-up. They are particularly effective in controlling sulfate scale, which is rock-like and can be

removed only by sanding, scraping or chiseling.

Caution: Some polyphosphate feeders cause slime build-up, so their use in low mineral content water

should be carefully considered.

(Continued)

When the ice slab takes too long to divide into cubes because the water supply has a high mineral content,

a special replacement transformer is available from your parts distributor. This transformer has a

selectable 11- volt tap that will increase the heat of the cutter grid wires, helping divide the ice slab into

ice cubes faster.

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Viking VUAR140 Troubleshooting Guide Page 18