19
Maintaining the equipment
For work on the equipment you will need the
following tools:
Combination spanner form B to DIN 3113, sizes
A. F. 17
A. F. 22
A. F. 24
A. F. 27
A. F. 32 for equipment with measuring
electrodes
Torque spanner to DIN ISO 6789
up to 10 Nm
10 – 60 Nm
60 – 120 Nm
120 – 300 Nm
Allen key to DIN ISO 2936, sizes
A. F. 5
A. F. 6
Screwdriver 5.5/125 to DIN 5265
Malfunctions may occur if the equipment is
used with different types of condensate:
The following condensates in particular
cause problems:
very oily condensates
condensates that resinify or become
gummy
condensates that recrystallize
condensates that contain solid matter.
In these cases check the equipment at
regular intervals for contamination and, if
necessary, remove dirt deposits.
To reduce contamination we recommend
installing a sedimentation vessel or a dirt
pocket arrangement upstream of the
equipment.
Normally you do not have to clean the internal parts
of the equipment.
To clean the equipment completely take off the
cover and remove the control unit.
The following drawings show equipment
type UNA 45 MAX with standard cover.
Removing cover
Remove the measuring electrode(s) if
mounted, before lifting off the cover.
Use a suitable combination spanner to
DIN 3113, form B, to remove the
measuring electrode.
Remove the four hexagon-head cap screws (10)
in the body.
Lift the cover (8) off the body (2).
Remove the body gasket (3).
For the disposal of the body gasket observe the
pertinent on-site regulations concerning waste
disposal.