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5.11 Rotary heat exchanger
General
The drive motor is easily accessible via the removable cov-
ering panels and quick release fasteners.
In order to avoid damage when cleaning, an air or water
jet-spray should be directed at the storage mass only at
right angles.
If the power supply has not been interrupted on all
phases, a danger of crushing or abrasion exists due to
the possibility of a sudden rotor start-up via an automatic
cleaning process or and automatic re-start following a
power failure.
Commissioning
Prior to commissioning, it must be ensured that no objects
are allowed to block the free movement of the rotor.
Remove foreign objects and contaminants.
Check sealing strips for contact pressure. These must
be pushed in as close as possible to the storage mass,
whereby a direct rubbing contact under operating pres-
sure conditions must be avoided.
As a matter of course, rotor mounting will be aligned at
the factory. Re-alignment may be necessary, however,
depending upon the installation conditions. In this regard,
please observe the manufacturer's operating instructions.
Because the v-belt is subject to a natural stretching, v-belt
tension should be regularly checked, especially within the
first 400 operating hours.
Open inspection access panel on the marked rotor corner
and check to determine if the belt is being held sufficiently
taut via the tensioning device. The drive belt is tensioned
via the belt take-up hanger or, if necessary, does the v-belt
need to be shortened:
• Open hinge latch
• Shorten continuous v-belt as necessary
• Re-close hinge latch
• Close inspection access panel
Bring drive motor into service. With regard to the rotor
regulating device, please observe the manufacturer's oper-
ating instructions.
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Check the prescribed rotor turning speed (e.g. 10 R/min at
10 V positioning signal).
Check the rotors turning direction (arrow) and change
motor electrical polarity as necessary. With a built-in rinse
zone, the rotor must turn from the extract air above the
rinse chamber to the supply air.
Maintenance
Under normal operating conditions, bearings and geared
motors (operating life packing) require no service or main-
tenance.
Removal from service
For longer periods of standstill (e.g. summer), the equip-
ment should be put into operation every 4 weeks under
normal ambient conditions in order to preserve the self-
cleaning rotor.
5.12 Plate heat exchanger
General
Condensate drainage via the siphon is excluded when a
plate heat exchanger with droplet separator on the extract
air-side is in use.
Commissioning, service and maintenance work is to be
carried out on the bypass dampers according to guidelines
found in the chapter, Louver dampers.
Commissioning
Check the plate heat exchanger for foreign objects and
contamination; clean as necessary.
5.13 Coil heat exchanger
General
Commissioning, service and maintenance work is to be
carried out in a interconnected-circulation system accord-
ing to guidelines found in the chapter, "Water coils".
Commissioning
If the system is not going to be put into immediate serv-
ice, then it must be completely drained or filled with frost
protection media to protect the coils and pipelines from
freezing.
The heat carrier medium must be checked for the effec-
tiveness of its frost protection before each winter period.
In order to prevent condensate icing on the extract air coil
lamella-fins at low temperatures, it is necessary to reduce
the transmission capacity below the freezing point limit.
The company reserves the right to make design changes without prior notice.
EN.SILVER.110322
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