34
XPXR Regeneration Exchanger Section
If this is not enabled by the air-handling unit assembly arrange-
ment, the air-handling assembly must be designed so that the heat
exchange can be pushed out from the air-handling assembly. Minimum
required space is 1.15 x width of the XP air-handling unit.
Removing the Rotor Fixation
The heat exchanger rotor is in its upper part fixed with two clamping
bars to avoid dynamic loading of the rotor during the transport. These
two bars must be removed before the heat exchanger installation.
Depressing the brushes to 1.5 mm (i.e. the distance of the brush
plastic bar from the face sheet).
The gap between the brush and the face sheet: 1.0 mm.
If the brushes are not tight, they can be adjusted by changing the
position of the plastic support bar
Warning: A rotary heat exchanger is one of the most expensive compo-
nents in an air-handling assembly; poor and/or incorrect installation
can result in costly repairs. Misalignment can be caused by improper
handling during transport and/or failing to observe conditions for its
correct installation. If the misalignment prevents free rotation of the
rotor, the rotor will have to be centred using a centre screw. If this is
the case, contact the manufacturer of the air-handling device.
Wiring
To connect the heat exchanger to the power supply, use the terminal
box situated on the side panel above the service panel.
The heat exchanger's operation can be controlled by a frequency
inverter as follows:
Autonomous control using an FIA controller
Control using a frequency inverter (XPFM) and a control unit
When positioning the frequency inverter, observe its operating
conditions (degree of protection, temperatures, wiring harness, etc.)
in accordance with the accompanying documentation, respectively
the type plate.
Connection without control - 3×400 VD/50Hz; connection with the
supplied frequency inverter - 3×230 VY/50Hz.
Commissioning
Before the first start-up, perform the following checks:
the rotor and exchanger's frame alignment.
Check the rotor for free rotation.
Belt tension
Close fitting of sealing brushes
Check the motor for correct wiring.
Motor running direction
Input current of the motor (refer to the type plate)
When handing over the air-handling unit, create records of operat-
ing staff training, operation, inspections and cleaning of the rotary
heat exchanger in accordance with this document (subject to
guarantee validity).
Regular Inspections
Before starting maintenance, cleaning and/or any service work on the
rotary heat exchanger, it is essential to disconnect the power supply
and take precautions to avoid the accidental switching on of the
motor during performance of these works.
Figure 2 –
Rotor Fixation Removal
Figure 3
– Frame height adjustment
2x
Installation
During installation, it is ESSENTIAL to retain alignment of the
AeroMaster XP unit and rectangularity of the heat exchanger. Failing
to maintain the above-mentioned condition will result in rotor
displacement, which will influence the tightness and service life of the
air-handling assembly. If 300 mm or 400 mm base frames are used,
it will be necessary to install a separate foot on the heat exchanger
base frame before installing the heat exchanger in the assembly to
eliminate the height difference (see figure # 3).
It is advisable to connect one side of the heat exchanger to the
assembly first and then check the rotor alignment (the distance
between the wheel circumference and face walls must be aligned
and the rotor must not drag in any position when freely rotated). If
any problem occurs, wheel centring must be performed, refer to the
section Troubleshooting (if you have any questions or doubts, contact
the manufacturer's service department).
The limits are as follows:
The manufacturer prohibits stopping the
exchanger wheel equipped with a layer of
silica gel throughout the year.
