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In mild calcification the parked can be cleaned by adding decalcifier to the circulating
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water (shut down the unit before adding decalcifier). After that clean the section and
tubes properly with fresh water.
9.5.5 Spray tube humidifiers
Please refer to the indications for air washers in chapter 9.5.2 (Air washers).
In general:
Remove tubes and nozzle for cleaning.
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Clean drain pan and drain.
9.6 Dampers
TRANE dampers of type J are nearly maintenance free. Check for dirt, damage and corro-
sion, clean if necessary with compressed air or steam jet. Check the function and correct
rotation. Spray the wheels with silicone spray if necessary.
Warning!
Gears cannot be treated with organic oils! Check linkages, tighten the screws if necessary.
9.7 Sound attenuators
The Silencers are basically maintenance free. In the context of larger maintenance they can
be checked for dust and cleaned with a vacuum cleaner.
9.8 Weather louver
Check for dirt, damage and corrosion, free from leaves, paper, etc.
9.9 Energy recovery systems
9.9.1 Plate heat exchangers
Plate heat exchangers are made of highly corrosion-resistant high-grade aluminum and have
no drive or moving parts. The lifetime is nearly unlimited, as long as the differential pressure
between the plates does not exceed the max. allowed.
The only maintenance required is cleaning:
Clean the condensate drain, control and fill the U-trap. The plate pack is normally self-
-
cleaning.
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