ProMinent DULCODOS Ammonia, Operating Instructions Manual, Page: 34 / 52

Inspection point Personnel
Check the surroundings of the system for the smell of ammonia. Technical personnel
Inspect the system for damage. Technical personnel
Check whether the seal on the dosing tank is damaged. Technical personnel
Stop the system and immediately have it repaired if one of these
points applies!
Interval Maintenance work Personnel
monthly Check the ammonia water metering system to ensure it is in cor‐
rect working order.
Technical personnel
Check whether the lines to the ammonia water metering system
and downstream of it are brittle or worn.
Technical personnel
Visually check whether the electrical insulation of all cables to
the metering system and the supply lines are intact.
Electrician
annually Replace the pump diaphragms - see "Operating instructions for
solenoid metering pump Beta BT4 and BT5".
Technical personnel
quarterly Check the pump diaphragms for damage and replace if neces‐
sary - see "Operating instructions for solenoid metering pump
Beta BT4 and BT5".
Technical personnel
every six months Replace the chemical vapour lock - refer to
Ä
‘Replacing the
chemical vapour lock’ on page 34.
Technical personnel
Check the ammonia water metering system for leak-tightness
see
Ä
Chapter 10.1 ‘Checking for leak-tightness’ on page 23.
Technical personnel
Record the result of the leak tightness test. Technical personnel
WARNING!
Hazardous ammonia water may escape
Ammonia water may escape when carrying out the
work listed below.
– Therefore always flush the system first, see
Ä
Chapter 15 ‘Decommissioning and disposal’
on page 38!
– Refit the new chemical vapour lock to the metal
bracket so that it cannot break off!
– Properly dispose of the chemical vapour lock!
1.
Flush the ammonia water metering system see
Ä
Chapter 15
‘Decommissioning and disposal’ on page 38.
2. Dismantle the old chemical vapour lock.
3. Fit the new chemical vapour lock.
4. Refit the new chemical vapour lock to the metal bracket so
that it cannot break off!
5. Properly dispose of the chemical vapour lock!
Daily inspections
Maintenance work
Replacing the chemical vapour lock
Maintenance
34