Weekly Deliming the Cabinet

Different levels of minerals exist in water based on location. Hard water contains minerals like calcium and magnesium which leaves limescale on the surface of the water pan. Ensure water meets the water requirements section of this manual. To better understand your water quality, contact the local water agency for a water quality report. Clean and delime the water pan regularly to maintain performance of the holding cabinet. Failure to maintain water quality and the water pan may lead to mineral deposit build up and the following issues:

  • The pan may overheat.

  • Decreased humidity output may affect product quality holding times.

  • Cracks may appear in the water pan.

HOT WATER

To avoid burns, use PPE when handling overflow tube and draining unit.

To avoid burns, use PPE when removing concentration ring.

To avoid food contamination, discard warped and/or bent pans. Metal debris may cause personal injury.

NOTICE -

To avoid equipment damage, do not clean stainless steel with abrasive tools, abrasive cleaners or corrosive chemicals.

NOTICE -

Ensure you install the racks correctly. Installing the lower racks in the upper rack location will lead to holding problems. The lower racks are shown below.

Lower holding rack

To clean lime scale, use a non-boiler grade delimer with sequestrants, which deactivate minerals in water. Deactivated minerals cannot react to form scum, film, or lime scale. Use the recommended products and procedures to clean the holding cabinet.

  1. Turn all controls off and disconnect electrical supply.

  2. Remove pans and racks from cabinet.

  3. Open drain valve and empty water pan into a shallow pan or floor drain.

  4. Remove concentration ring assembly from water pan.

  5. Wash the concentration ring in a dishwasher or sink.

  6. Fill water pan with warm clean water.

  7. Add 1/3 cup of de-limer to water pan.

  8. Wait one hour for de-limer to break up minerals.

  9. Using a soft brush scrub sides and bottom of water pan.

  10. Remove the drain plug to empty the water pan.

  11. Rinse water pan with clean water.

  12. Repeat STEPS 3-7 if necessary.

  13. Reinstall the racks, replace the concentration ring and fill the water pan with water to the maximum water fill line.

If the water pan still has hard mineral build-up after following the de-liming procedure, follow the procedure below.

  1. Turn all controls off and disconnect electrical supply.

  2. Remove pans and racks from cabinet.

    Standpipe Removal

  3. Allow unit and water to cool, then open drain valve and empty water pan into a shallow pan or floor drain.

    Concentration Ring

  4. Remove concentration ring assembly from water pan.

  5. Wash the concentration ring in a dishwasher or sink.

  6. Ensure water pan is empty and drain plug is in place.

  7. Add 2 cups of de-limer to water pan.

  8. Wait 10 minutes for de-limer to break up minerals.

  9. Using a soft brush, scrub sides and bottom of water pan.

  10. Drain the pan completely in accordance with safety and environmental regulations.

  11. Rinse the water pan with clean water to ensure all de-limer is removed from pan.

  12. Reinstall concentration ring assembly in the water pan.

  13. Reinstall the racks and fill the water pan with water to the maximum water fill line.

    Unit is ready for use.