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Maintenance and Servicing
Warning
To avoid electrical shock, al-
ways disconnect from power
supply before maintenance and
servicing. Refer servicing to
qualified personnel. For contin-
ued protection against possible
fire hazard, replace fuses only
with the same type and rating of
fuse.
Warning
Ensure adequate ventilation
when using chemicals for clean-
ing. Wear eye and hand protec-
tion when using acid for clean-
ing, as acid spattering may
occur.
18
Maintenance and Servicing
Cleaning
For top performance and efficiency, the
MEGA-PURE® 6A Water Still should be kept
clean and free of scale. It is recommended that
the boiler be drained and refilled with fresh water
daily to flush the boiler of the concentration of
contaminants from the previous day's run.
When using untreated boiler feed, cleaning is
recommended after every 15-20 hours of
operation. The unit should be cleaned with a
hydrochloric acid solution. This is done as follows:
1. Push the unit's "OFF" switch.
2. Disconnect the output tubing at the
condenser (B) from the collection vessel
and temporarily place a beaker under
the condenser outlet.
3. Drain the boiler 2/3 by opening the
stopcock (K). Close the stopcock (K)
after the boiler has drained.
4. Use the spare pinch clamp from the
parts box to shut-off the overflow tube
from the constant level chamber (N) as
close as possible to the overflow stem.
5. Carefully pour approximately 400 ml. of
10% hydrochloric acid solution into the
top of the constant level chamber (N).
May need to add water to boiler to bring
solution level up to scale level.
6. Wait approximately 10 minutes or until
the residue disappears. If additional
cleaning is required, drain the boiler
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