8. Maintenance and cleaning
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8
Maintenance and cleaning
Prior to cleaning turn off the system with the master switch and disconnect the system from
the mains voltage.
8.1 Maintenance
The control unit is maintenance-free, yet it is still appropriate to inspect the equipment in
regular intervals:
Are all the fastening screws tight?
Is the housing seal in perfect condition, and does it provide proper sealing?
Also check all the cables for possible damage (e.g. at the cable sheath).
8.2 Cleaning
8.2.1 Hints for cleaning
- Please ensure you follow the instructions below.
- Specific machine components must be cleaned with specific substances. Please use the correct
materials and clean at regular intervals as suggested.
- If the building is being cleaned ensure the machines are covered up.
The following must not be used for cleaning:
- Sharp, hard or pointed objects
- Water or steam jet appliances
- Compressed air
- Hazardous and solvent-containing materials
- Cleaning agents that may attack the materials used
8.2.2 Cleaning instructions
For cleaning purposes we recommend that you use warm water with approved cleaning agents for the
respective application, and a soft, lint-free cloth. Once every week the coil shaft should be thoroughly
cleaned, removing any dirt accumulations and deposits. After cleaning wipe up any remaining drops of
water with a dry, non-fibrous cloth until the coil shaft is dry. From time to time apply oil to the stainless
steel framework (e.g. Nirostol 55 cleaning and maintenance oil which meets food industry standards).
8.2.3 Care advice for stainless steel
Only high-quality stainless steel is used in the systems. To prevent rust on the high-grade steel parts
do not use substances containing chloride (e.g. cleaning or disinfecting products) or operate the ma-
chine in an atmosphere containing chloride. If this is unavoidable the steel parts must be thoroughly
rubbed down immediately afterwards with cleaning oil e.g. Nirostol 55 cleaning and maintenance oil
(which meets food industry standards).
Important information for stainless steel models
Stainless steel models are extremely weatherproof and are therefore able to withstand most environ-
mental conditions.
However, even stainless steel can be susceptible to a slight film of rust.
These deposits are caused by contact corrosion and can be removed by following the instructions be-
low:
- Use a stainless steel cleaner: in principle any stainless steel cleaner may be used. Please ensure
you read the instructions prior to use.
- Use only cleaning agents that are halogen-free (i.e. without chlorides and fluorides), and salt and
hydrofluoric acid free.
- After each cleaning rinse the machine thoroughly with tap water
- Do not use the following: non-alloy materials or substances, abrasive cloths, cleaning agents con-
taining salt or hydrofluoric acid, chrome, silver or brass cleaners.