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11.3.7 Declaration of conformity
The declaration of conformity to ATEX applies only to the original delivery AHU and with
proper repair and maintenance. When changes on the AHU are made, which are not agreed
in writing, the declaration of conformity loses its validity.
12 Disassembly and disposal
12.1.1 Disassembly
At disassembly, the safety instructions of chapter 2 (Safety instructions) must be consid-
ered. It also apply the instructions in chapter 3 (Reception control / unloading / transpor-
tation to installation site). The casing can be disassembled relatively easy:
Disassembly of the casing:
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Disassembly of the external panels and removal of the insulation.
Loosening of the screw connections.
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Loosening of the rivet connections by drilling the rivets.
Disassembly of the built-in parts:
Secure slender components against tipping over.
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Use of appropriate scaffolds and load carrying equipment.
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The AHU components must be raised with suitable load carrying equipment (e.g. belt
with hook or shekel with chain) and have to be secured until the components are safely
fixed in the unit – see Figure 144.
Handling: securing with belt – see Figure 145.
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Figure 144: Lifting with chain hoist
Figure 145: Securing with belt
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