Servicing – Elmo Rietschle L-BL2 User Manual
Page 28
Servicing
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Contamination/Problem
Remedy
Impeller of installed unit is
jammed.
Free shaft by turning.
To do so, proceed as follows:
Shut down system and secure against being switched on again.
Remove cover plate (Item 064).
Turn shaft of installed unit (Item D) by hand at fan impeller.
If shaft cannot be freed by turning, installed unit must be decalcified.
Extremely hard water used
as operating liquid
Lime content > 15°dH).
Soften operating liquid.
OR
Decalcify installed unit.
Decalcify installed unit (Item D) at regular intervals. (Intervals are depending
on calcification.)
To do so, proceed as follows:
Wear personal protective equipment (protective gloves and safety
goggles),
Shut down system and secure against being switched on again.
Drain system as described in Chapter 8.1, "Draining", Pg. 23.
Have the cover plate (Item 064) and protective grille (Item 058) removed
from the separator.
Models 2BL2 041 - 2BL2 141:
Disconnect pipe/hose from screw-in connecting sleeve (Item H) of
installed unit.
Models 2BL2 251 - 2BL2 341:
Disconnect pipe/hose from condensation cooler (Item 031).
To remove the pipe/hose, open the clip with special pliers or a
screwdriver.
Use
10 % ethanoic acid
as antiliming liquid.
WARNING: Danger from ethanoic acid! Ethanoic acid can cause heavy
acid burns! Observe applicable laws and regulations as well as accident
prevention regulations concerning hazardous substances and
manufacturer's safety data sheet!
Fill interior of installed unit with antiliming liquid.
To do so, proceed as follows:
Pour antiliming liquid into the open screw-in connecting sleeve (Item H)
using a funnel or hose. (See Fig. 13, Pg. 24.)
Filling amount: see Chapter 3.1, "Mechanical data", Section "Filling
quantity for antiliming liquid", Pg. 8. The entire interior of the installed unit
must be filled with antiliming liquid.
CAUTION: Various system seals can be damaged by prolonged contact
to ethanoic acid. The ethanoic acid may only enter the interior of the
installed unit.