fisair DFRIGO Series, Руководство пользователя

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DFRIGO User Manual |
Document subject to change without prior notice.
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Installation.
Before starting to install the unit, the following points need to be considered:
•
The unit is designed for indoor installation; it must never be installed directly exposed to
the elements. If the unit must be installed outside, then it should be provided with suitable
protection against the effects of sunlight and rain.
•
The place selected must be suitable to install the unit. When selecting the place where
the unit is going to be installed, one must take due account of the dehumidifier's external
dimensions and the space required for its inspection and maintenance. (See point 5.5 in
this manual for the dimensions of the unit).
7.1 Service space
It is important to take due account of the service space when installing the unit. This space
is necessary as the following need to be carried out on a periodic basis:
•
Clean/replace the process and reactivation air filters.
•
Check the status of the desiccant rotor fan surfaces, air circuit sealing joints, drive belt and
reducer-motor (and, where required, their repair or replacement).
•
Check that the dry air and wet air motor-fans are working correctly.
•
Check the reactivation air heater is working correctly.
•
Check that the sensible heat exchanger is in perfect condition.
•
Gain access to the inside of the control and protection electrical board, and, if required,
carry out repairs.
7.2 Connection to air ducts
The installation technician must be familiar with the sizing and the layout of the air ducts;
however, it is important to pay special attention to the following points:
•
Ensure that the pressure available to the fans has been considered when designing the
correct size of the ducts, so the equipment can operate at nominal flow rates.
•
The equipment has control dampers in the suction of both air circuits, for isolation during
inactivity and to adjust the available fan pressure.
•
The outside air intake must be protected (by grids or mesh) to protect against entry of
foreign matter, e.g. leaves, insects and rainwater.
•
The external air intake and the wet air outlet must be kept separate (minimum 3m) so as
not to affect the equipment performance.
•
Provision must be made for the removal of any cooled condensation produced in the wet
air duct during operation. This can be achieved by ensuring a downward inclination
towards the outside, for horizontal ductwork. Ensure that upward slopes are adequately
insulated or drill a hole larger than 5mm at the lowest point to remove any condensation.
This prevents it returning to the unit or restricting airflow inside the duct.