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6.0 Maintenance and Service
• Decalcification and changing of filter (see sections 6.1, 6.2) should be carried out immediately by the user when required.
Maintenance, repairs and period tests may only be carried out by persons who have the appropriate technical knowledge and
are familiar with the product. To carry out these measures the person must have the necessary test devices and original spare
parts.
ATMOS recommends: work should be carried out by an authorized ATMOS service partner. This ensures that repairs and test-
ing are carried out professionally, original spare parts are used and warranty claims remain unaffected.
• At least every 12 months a repeat test of the electrical safety should be performed according to IEC 62353. ATMOS recom-
mends an inspection according to the manufacturer's specifications.
• Please observe the corresponding service instructions.
6.1 Decalcification
If the tap water in the area, where the unit is used, is known for mineral precipitation, preventive decalcification should be carried
out:
• Close water tap.
• If applicable, dismantle filter when mounted vertically at water tap.
• Unscrew screwed glass of filter.
• Fill screwed glass with approx. 100 ml of decalcifier on acetic / citric, or lactic acid base (for inst. Citrosteril, by Fresenius).
• Screw glass on again.
• Install filter vertically again, if applicable.
• Open water tap again.
• Switch on the device.
ª Decalcification takes place automatically in the thermal process for reducing bacterial count. After the unit has been in this
mode for 5 minutes the water passages have been decalcified and cleaned, and also sufficiently flushed. The Hygrotherm
plus is again fully ready for operation. When water passages are heavily calcified, a modified procedure may become
necessary, with a prolonged reaction period for the decalcifier.
6.2 Replacement of filter
• When the filter cartridge is very dirty (dark colour) the
filter cartridge is to be exchanged as follows:
- Close water tap of supply.
- Switch on unit to reduce pressure in the filter body.
- Switch off unit after appearance of "F 1".
- Unscrew plexiglass cup (, Fig. 6) from filter body
(, Fig. 6) by turning anti-clockwise.
- Extract filter cartridge (, Fig. 6) and replace with
new one (art. no. 502.0891.0).
• The filter element must not come into contact with
contaminated objects in order to prevent the ingress of
germs into the water system.
6.3 Changing the fuses
• Switch off the device.
• Disconnect the power cable from the device.
• Disconnect the fuse holder from the mains supply.
• Replace both fuses (F 8 A, 250 V).
• Mount the fuse holder.
• Connect the device to the mains supply.
6.4 Sending in the device
• Remove and properly dispose of consumables.
• Clean and disinfect the product and accessories according to
the operating instructions.
16
Fig. 6. Water filter
• Place used accessories with the product.
• Fill in the form QD 434 "Delivery complaint / return ship-
ment" and the respective Decontamination certificate.
) This form is enclosed with each delivery and can be
found at www.atmosmed.com.
• The device must be well padded and packed in suitable
packaging.
• Place form QD 434 "Delivery complaint / return shipment"
and the corresponding Decontamination certificate in
an envelope.
• Affix the envelope to the outside of the package.
• Send the product to ATMOS or to your dealer.
Filter body
Filter cartridge
Sealing ring
Plexiglass cup
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