16
Horizontal package air conditionners
12. M
AINTENANCE
Access to the inside of the machine by all panels. These
access panels are
fi
xed with rivet nuts M4.
Centrifugal fan
- Verify that the turbine and the motor remain clean.
- Foresee having a spare belt set for the fans.
- The motors and the fans have bushings that have been lubricated
and sealed and, thus, do not need further lubrication.
The minimal maintenance operations and their periodicity will be made
according to the national regulations.
Any intervention on the electric cooling components must be made by
a quali
fi
ed and authorized technician.
Technicians who intervene with the unit must use the necessary safety
equipment (gloves, goggles, insulating clothing, safety shoes, etc.).
Furthermore, if working around sources of significant noise, we
recommend the use of noise-dampening headgear.
V-220004
Caution:
Before intervening in the unit, cut off main power.
V-220005
Condensate drain pans
- Check that the condensate pans of the outdoor and indoor circuits
are clean. There should be no stagnant water.
- Check that the drain is not clogged.
- Cleaning of the pan can be done with water and non-abrasive
detergent.
Servomotor (optional)
In units with a condensation pressure regulation damper (in the STD
version), it is advisable to check the state of the servomotor.
Indoor circuit
condensate drain
Air
fi
lters
The frame with the gravimetric
fi
lter can be extracted easily by both
sides.
- Clean usually. Depending on the installation conditions, the
fi
lter
aspect must be examined to de
fi
ne the cleaning periodicity.
- Cleaning the
fi
ltering mesh can be done with a household vacuum
cleaner, or else by submerging it in water.
Outdoor circuit
condensate drain
Indoor
circ. pan
Indoor
circ. coil
Outdoor
circ. pan
Outdoor
circ. coil
General recommendations:
- Do not lean on the unit. A platform must be used to work on a level.
- Do not lean on the copper refrigerant tubes.
- Keep the unit clean.
- Keep the space surrounding the unit clean and cleared in order to
avoid accidents and ensure the proper ventilation of the coil.
- Perform a visual (remains of water or oil below or around the unit)
and auditory inspection of the entire installation.
- In general, a corrosion control must be performed on the metallic
parts of the unit (frame, bodywork, exchangers, electric panel, etc.).
- Check that the insulation foam is not unstuck or torn.
- All the electric connection states must be checked as well, as well
as the air tightness of the different circuits.
Next, some recommendations are stated to perform the cleaning of
the unit's components:
Air coil
- Check that the coil is free from dust and grease.
- Cleaning the accumulated dust on the coil can be performed with
a vacuum cleaner perpendicular to the
fi
ns or with a low-pressure
water cleaner. Grease can be removed with water with degreaser.
Do not put stress on the
fi
ns as they could deform.
Use safety gloves for this task. Take care with the sharp
parts of the coil.
Frame in displacement
Summary of Contents for 50HB
Page 19: ......
