Instruction Manual ZHK
30/129
V07-19.0
Figure 28:
Solid foundation and strip foundation
The installation of underlayment with impact sound insulation properties and high specifications is
highly recommended. It is recommended, depending on the location of the erection, to underlay
the AHU with cork, Mafund plates or Sylomer strips. The used absorbent material must be adjusted
to the load to achieve optimum noise insulation. Each contact point between AHU and foundation
must be noise insulated. Additionally, the respective design criteria of the manufacturer must be
complied. For the weight specifications of the AHU see the technical data sheet.
4.2
Erection
4.2.1
Potential risks that may arise at the erection site
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For heating or cooling water, water-glycol circuits or steam lines for heating or cooling these
can be connected to the AHU. There may also be internal (closed) water or water-glycol cir-
cuits. In addition, a humidifier with inlets, outlets, overflows may be installed for humidification.
-
The pipes or hoses and their fittings can become leaky or loose, so that inside or outside of the
AHU water or the medium exits.
-
Cooling processes can cause dehumidification and the associated formation of condensation in
the AHU. The AHU is then equipped with condensate collecting trays and outlets. Neverthe-
less, condensate can exit from the AHU in case of errors on the AHU, under inadmissible or
extreme operating conditions. Errors on the AHU, inadmissible or extreme operating conditions
can also cause the formation of condensate on the outer surfaces of the AHU, which may then
drip down.
-
Internal and external cleaning - also wet cleaning - can be performed on the AHU. When per-
forming this work, an exit/dripping down of the cleaning fluid is possible.
-
All parts which are in contact with water inside and outside of the AHU may freeze under cer-
tain environmental conditions. Particularly, the following components have an increased risk of
freezing:
o
Condensate pans of heat recovery systems and heat exchangers inclusive pan nozzles,
siphons and drains
Summary of Contents for ZHK Series
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