A.O. Smith Dscale, Descaling Instructions

Page: 11 / 16

English
A.O. Smith Dscale 11
s
Appliances without a
cleaning opening
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Note
A.O. Smith has developed a special descaling set for appliances without
openings for cleaning. You can order this set from A.O. Smith, quoting item
number 0307564.
1. Switch the appliance off, following the instructions in the equipment manual.
2. Drain the appliance (see equipment manual).
3. Remove the drain valve from the appliance.
4. Fit the new drain valve and the extension piece from the descaling set.
5. Open the drain valve.
6. Flush the appliance with tap water to remove loose impurities.
7. Attach the hose and the funnel to the new drain valve as shown in
Figure 6 .
Warning
Wear safety goggles and rubber gloves. A.O. Smith DScale irritates the skin
and can cause serious eye injuries.
8. Add the appropriate number of litres of A.O. Smith DScale, as described in
Table 2 .
9. Dilute the DScale with the same number of litres of water.
n
Note
For severe scaling, use double the quantity of DScale undiluted. When there
is not much scaling, dilute the DScale in the proportions 1:2. The total
quantity of liquid must always match the figure given in
Table 2 .
10. Close the drain valve.
Figure 6 Fitting the descaling set
IMD-0406
SU