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o Removed fibers and dust at the exchanger inlet with a brush.
o Clean oils and fats with hot water, household cleaners or degreasing steam.
Check for proper operation of differential pressure switch – for function refer to chapter
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7.6 (Differential pressure restriction for plate heat exchangers).
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If there is a bypass damper, please refer to chapter 9.6 (Dampers).
9.9.2 Heat wheels
Check the drive unit according to manufacturer's instructions.
In general:
The construction of the storage mass is nearly complete self-cleaning.
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The rotor can be cleaned with compressed air, water, steam and grease-dissolving
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household cleaning products.
The sliding seal, which seals the rotor, is to check and adjust if necessary.
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9.9.3 Heat pipes
Heat pipe components have no drive or moving parts, maintenance is limited to cleaning:
Clean the drain pan and check the siphon. Fill the siphon if necessary.
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Fins cleaned by:
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o Compressed air against the air flow direction or
o Spraying with low pressure water, if required add household cleaning detergent.
If bypass dampers exists, please refer to chapter 9.6 (Dampers).
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9.9.4 Accublocs
Electrical connection:
The accubloc is supplied including controller supplied loose (configured with default values),
including operating instruction. On site must be provided:
Power supply 3x400V (efficiency according to technical data sheet)
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Control signal 0-10V
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All bearings are self-lubricating ball bearings or bronze bearings. This should not be lubricat-
ed. It is important to ensure that the sensor is about 2 mm away from the engine. This can be
checked with a 2mm thick piece of sheet metal. If necessary, the distance can be readjusted.
The inner side of the sensor is accessible through the open damper with a wrench SW17.
Caution! Switch off before installation and secure against accidental recon-
nection.
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