Carrier 30PA 180, Инструкции по установке, эксплуатации и обслуживанию

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21
12 - MAINTENANCE
Mesh
fi
lter
■
It is also necessary to install a
fi
lter in the hydraulic power
supply to the unit in order to prevent clogging of the plate
exchanger.
■
Optionally, this
fi
lter can be supplied for 30PA by kit.
■
The
fi
ltering mesh must be removed and cleaned in order to
clean the
fi
lter.
Dehydrating
fi
lter
■
The
fi
lter function is to keep the cooling circuit clean and
without humidity, neutralising the acids that can be found in
the cooling circuit.
■
Verify dirt measuring the di
ff
erence in temperature at the piping
level, at the inlet and at the outlet of the dehydrant.
■
If necessary, replace.
Dehydrating
fi
lter
Plate
exchanger
Di
ff
erential
pressure switch
Condensate drain pan
■
Check that the condensate pan is su
ffi
ciently clean.
■
Check that the drain is not clogged.
■
Cleaning of the pan can be done with water and non-abrasive
detergent.
Centrifugal fan (STD version)
■
Verify that the turbine and the motor remain clean.
■
Foresee having a spare belt set for the fans.
■
The motors and the fans have bearings that have been lubricated
and sealed and, thus, do not need further lubrication.
Servomotor (optional)
In units with a condensation
pressure regulation damper
(in the STD version), it is
advisable to check the state
of the servomotor.
Filters are moved by lifting
the tab and dragging
Filter in the return air (optional)
■
Clean usually. Depending on the installation conditions, the
fi
lter
aspect must be examined to de
fi
ne the cleaning periodicity.
■
Gravimetric
fi
lters: Cleaning the
fi
ltering mesh can be done
with a household vacuum cleaner, or by submerging it in water.
Servomotor
Compressor
In the case of compressor replacement:
■
Disconnect the unit from power supply.
■
Completely empty the load of refrigerant using a speci
fi
c
recovery unit for R-410A
■
Disconnect electrically the compresor.
■
Carefully unsolder the suction and discharge piping.
■
The compressor is
fi
xed onto the platform with 4 screws.
Unscrew the
fi
xings.
■
Place the new compressor and check that it has a su
ffi
cient
oil charge.
Warning: when tightening the compressor screws, please
consult the maximum torque that can be applied.
If a torque wrench is not available, tighten them until noticing
resistance, then tighten the screws by turning them 3/4 of a
revolution.
■
Solder the suction and discharge piping.
■
Connect the compressor in accordance with the circuit diagram.