AL-KO EASYAIR RO-01, Installation And Operating Manual

Page: 53 / 76

Subject to changes in line with technical progress.
53
Servicing and maintenance
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8.4.3 Countercurrent plate heat exchanger
WARNING
Risk of cuts
During maintenance and cleaning of the countercurrent plate heat exchanger there is a risk
of cuts!
„
Wear personal protective equipment (cut-proof gloves)!
CAUTION
Risk of burns as a result of contact with hot surfaces and media (plate heat exchanger,
heat exchanger and electric heating register)
„
Before and after cleaning and maintenance, wait until the hot surfaces have cooled down.
„
Wear personal protective equipment.
8.4.3.1 Maintenance
„
Check plates for soiling.
„
Remove oil and grease deposits (see”8.4.3.2 Cleaning” on page 53)
„
Check water drain and siphon of the drain tray and top up if necessary.
8.4.3.2 Cleaning
„
The heat exchanger can be cleaned using a hot water high pressure cleaner.
The following parameters are to be observed here:
Nozzle: Flat jet nozzle
Pressure: max. 50 bar
Water volume: max. 450 l/h
Water temperature: max. 70 °C
Distance to heat exchanger*: min. 10 cm
Nozzle direction: 90° offset to foil embossing or fins
* The minimum distance to the heat exchanger is a recommendation! The minimum distance must be selected in such a way that
complete and thorough cleaning without damage is ensured.
1
3
5
2
6
4
1 Plate heat exchanger 4 Exhaust air
2 Outdoor air 5 Supply air
3 High pressure flat jet nozzle 6 Exhaust air