14
Troubleshooting
WARNING!
It is mandatory that you read the safety information
and specifications in the "Storage, Transport and
Unpacking" chapter prior to shipping the pump.
WARNING!
Hazardous ammonia water may escape
Ammonia water may escape when working on the
system.
– Therefore always flush the system first, see
Further information on page 38!
– Wear tightly fitting safety goggles and suitable
safety gloves when working on the system!
– Wear respiratory protection in exceptional sit‐
uations (e.g. in the event of accidental release
of the substance, exceeding of the occupa‐
tional exposure limit): Gas filter K, green colour
code (Germany). Note the limits on time of
wearing!
Use an isolation unit with concentrations above
the application limit of filter equipment, with
oxygen contents bellow 17 vol% or in the event
of unclear conditions!
– Only use the correct, high quality original spare
parts!
– On completion of the work, check the system
for leak-tightness!
WARNING!
Warning of explosive atmospheres
An explosive air-ammonia mixture can form with
high concentrations of ammonia water – particu‐
larly above 15% w/w – or also at high ambient tem‐
peratures (at over 30 °C above 10% w/w).
– Note the current regulations and technical reg‐
ulations dealing with ammonia and ensure ade‐
quate ventilation.
WARNING!
Warning of explosive atmospheres
Only allow an electrical technician qualified in
ATEX explosion protection to carry out tests and
repairs on the level switches and switch amplifiers
used here.
If necessary, refer to the operating instructions for the
metering pumps when troubleshooting.
Troubleshooting
37
Summary of Contents for DULCODOS Ammonia
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