Installation
8.
INSTALLATION
Location
302
Ref.2003
· 242 ·
QC-PDS
HARDWARE
8.1.5 Cabinet heat dissipation
It is recommended that the following be used to cool the electrical cabinet:
Heat exchangers. They prevent contaminated air (mist, metallic dust in
suspension, etc.) from getting into the electrical cabinet hence
eliminating the chances of accumulating particles, condensation, etc. in
the cooling circuits of the QC-PDS system equipment.
and if it is not possible to use heat exchangers, then:
Air extraction system. They prevent the air from entering the electrical
cabinet with a fan.
Place the extractor fan at the top of the cabinet and the air intake at
the bottom. See previous figure.
Install a filter at the air input. It is also recommended to install a filter
for the fan.
Decrease the air intake speed from the outside by making the air input
window larger than that of the fan. The required power and air flow
depends on the power installed.
Install the QC-PDS system as far away as possible from air inputs and
outputs.
Carry out periodic maintenance on air filters.
Use the following suggestions to minimize the maintenance of this type of
cooling systems and the contamination of the electrical cabinet:
Set the fan to work only when the inside temperature of the electrical
cabinet exceeds the predetermined limit (for example 45 °C). This will
decrease its running time and the flow of the incoming air while
increasing the lifespan of the fan. The cost of this solution is minimal
using a bimetal type thermostat or controlling it by using one of the
outputs of the PLC or CNC.
Install a fan whose speed varies depending on the air temperature. This
type of fans have an NTC sensor either integrated into it or supplied as
an accessory by the fan manufacturer.
MANDATORY. The ventilation for the electrical cabinet must be enough to
dissipate the heat generated by all the devices and components working
inside.
F. H8/8
Location of the air intake and output in the electrical cabinet.
A.
Extractor fan. Air output. It is recommended that a filter be installed.
B.
Air input. It is mandatory to install a filter.
A
B
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