190.210-IOM (SEP 21)
Page 17
LazerWeld II Plate Heat Exchanger
Maintenance
1. Start cleaning the cassette when the heating surface is
still wet and the cassettes are hanging in the frame.
2. Remove deposits using a soft brush and running water.
Figure 35: Clean with brush and water
3. Rinse with water using a high pressure hose.
Figure 36: Rinse the cassette
Deposits not removable with water and brush
Cassettes must be removed from the PHE during cleaning.
WARNING
Use appropriate protective equipment, such as safety
boots, safety gloves and eye protection, when using
the cleaning agents.
WARNING
Corrosive cleaning liquids can cause serious injuries
to skin and eyes!
1. Brush with cleaning agent.
Figure 37: Brush with cleaning agent
2. Rinse immediately with water.
Figure 38: Rinse the cassette
NOTICE
Long exposure to the cleaning agents can damage
the gasket glue.
Regasketing
These procedures apply to field gaskets and ring gaskets
affixed to the cassettes using glue free clip-on tabs.
NOTICE
Before removing the old gaskets check how they
are placed and attached. Especially the end cassette
gasket configuration needs attention.
Clip-on and clip-grip
and remove the cassette
that needs a new gasket.
NOTICE
Before opening the LZWII check the warranty condi-
tions. If in any doubt, contact a Frick sales represen-
tative. See
2. Remove the old gasket.
3. Ensure that all sealing surfaces are dry, clean, and free
of foreign matter such as fat, grease, or similar.
4. Check the gasket and remove rubber residual before
attaching it.
5. Attach the clip gasket to the cassette. Slip the gasket
prongs under the edge of the plate. Fix the field gasket
diagonal using tape on the small tabs. Contact your
Frick representative for advice on the gasket placement
of the respective cassette type.
