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12
Horizontal package air conditionners
Access for maintenance:
The frame has access designed from the right side for maintenance.
To access the electrical
heaters, the screws that
fasten the frame side panel
must be unscrewed as shown
in the illustration.
Access panel
Electrical heater
- The auxiliary electrical heaters are ready for operation in one power
stage.
- The heaters acquired with the unit will be incorporated to it modifying
the electric panel in the factory, so that it is compatible with the
electronic control.
- The electrical heaters requested for units already shipped will be
sent in a kit, and the installer will need to assemble the elements
required for the operation of the unit and for compliance with the
legal regulations that are applied to the modi
fi
ed unit with regard to
safety.
Note: with this option, the air
fl
ow controller is included.
9. O
PTIONS
Condensation pressure control
This control is advisable for units that work in cooling with an outdoor
temperature below 15º C.
In units with centrifugal fan a check is performed per damper in the
fan outlet. A servomotor opens or closes the damper depending on the
proportional signal 0-10V received from the electronic control system.
Clogged
fi
lter detector
Differential pressostat for indication of maintenance to
fi
lters. Automatic
reactivation.
This pressostat is installed in the auxiliary electric panel.
Air
fl
ow control
Differential pressostat that measures the
fl
ow variation in the air supply.
This allows the detection of fan belt breakages, since the fan relay only
detects operating faults that have arisen in the motor.
This pressostat is installed in the auxiliary electric panel.
This safety device is compulsory in units with electrical heaters.
Auxiliary
electric panel
Pressostat for
dirty
fi
lters
Pressostat for
fl
ow control
Filters
These units can substitute the
fi
ltering mesh that the units include
regularly with G4 rating, mounted on the same frame.
This frame can be extracted easily by both sides.
Frame in displacement
Servomotor
Damper
Summary of Contents for 50HB
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