Profroid SOPRANO 50, Operating Instructions Manual

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Cleaning with clean water (low pressure)
- For slightly dirty coils, it is also possible to clean with clean water.
- Initially clean with a non-metallic brush (soft brush).
- Suck the front surfaces with a vacuum cleaner.
- After brushing and vacuuming, clean the coil with a jet of water (ideally flat
jet). Use clear water at the pressure of the tap water network (3 bar max).
Minimum distance to keep between the exchanger and the water jet = 400mmm.
- Repeat this operation as necessary until you obtain a perfectly clean surface.
- Orient the water jet perpendicularly to the exchanger. An angled position will cause the fins to fold.
- Make sure not to orient the jet towards the fans, it is mandatory to protect the fans against splashing water.
- When using cleaning agents other than water, choose a neutral pH fluid (pH = 7), and rinse with clean water. Be sure that:
o
these cleaning agents are compatible with all the elements of the exchanger and are not likely to corrode materials
used for the manufacturing of the exchanger
o
these cleaning agents used have no impact on the environment, either by using non-aggressive products or by collecting
and treating the effluents resulting from the cleaning of the heat exchangers
5.3 HIGH PRESSURE CLEANING – MODERATELY SOILED COILS
Turn off the entire unit, and secure the unit against unintentional power-on.
Comply with the site's specific safety instructions.
Cleaning with a water pressure washer
For moderately soiled heat exchangers: wet or oily dust, residues with little clogging,… it is possible to use a pressure washer.
- Choose a nozzle to obtain a flat jet (25°)
- Before proceeding on the heat exchangers, it is recommended to activate the hose outside of the heat exchangers, then start the cleaning
at a distance greater than the minimum distance allowed. Use a pressure washer with a maximum pressure of 110 bar. Minimum distance to
keep between the hose and the exchanger = 400 mm
- Orient the flat jet facing the fins and perpendicularly to the heat exchanger. An angled position will cause the fins to fold. A parallel
position will have the effect of spreading the fins.
- Make sure not to orient the jet towards the fans, it is mandatory to protect the fans against splashing water.
- Repeat this operation as necessary until you obtain a perfectly clean surface.
400 mm