Subject to changes in line with technical progress.
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3059570
Servicing and maintenance
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.
8.4.2.1
Maintenance
Check plates for soiling.
Remove oil and grease deposits (see
)
Check water drain and siphon of the drain tray and top up if necessary.
8.4.2.2
Cleaning
The heat exchanger can be cleaned using a hot water high pressure cleaner. The following parameters are to be observed:
Nozzle:
Flat jet nozzle
Pressure:
max. 20 bar
Water volume:
max. 450 l/h
Water temperature:
max. 70 °C
Distance to heat exchanger:
min. 30 cm
Nozzle direction:
90° offset to foil embossing or fins
1
3
5
2
6
4
Fig. 33 Plate heat exchanger cleaning
1
Plate heat exchanger
4
Extract air
2
Outdoor air
5
Supply air
3
High pressure flat jet nozzle
6
Exhaust air
ATTENTION
The specified values must be adhered to, otherwise the plate heat exchanger may be damaged.
NOTE
To remove stubborn dirt, cleaning agents can also be used (e.g. washing-up liquid, biode-
gradable).
It must then be rinsed using plenty of fresh water.
Do not use aluminium cleaners! These are acidic and attack the surface of the plate heat
exchanger.
