AHE00049 2002
5
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
• Always place air heat exchangers on an even surface.
• Do not stack air heat exchangers unless explicitly indicated this is allowed.
• Storage temperature between -40° C and +50 °C.
• Never open or remove the schrader valves. Overpressure in the coil must be maintained.
Shelf life of air cooled condensers and gas coolers is one year. If longer storage periods occur,
carefully check:
• Proper functioning of the fan motor.
• Mounting feet, lifting lugs and fan fixings for corrosion.
2.4 Checks at delivery
All finned coils are pressure tested with dry air, sealed and supplied with a slight overpressure. Prior
to installation, the leak resistance must be checked with the schrader valve.
2.5 Return of unused heat exchangers
Air heat exchangers that have been delivered in accordance with orders are in principle not return-
able. Heat exchangers can only be returned under certain conditions and following consultation with
Alfa LU-VE. This applies exclusively to unused units. The heat exchangers that are to be returned
should be delivered carriage paid to Alfa LU-VE in the original, undamaged and unwritten factory
packaging. Not returnable are:
• Heat exchangers older than three months from the invoice date.
• Heat exchangers that have already been built in and/or are damaged.
2.6 Guarantee
For our guarantee conditions, we refer to the Terms of Delivery. In general, the warranty period
between Alfa LU-VE and the customer is 24 months from factory invoice date or 12 months of
operation, which ever comes first. Heat exchangers must not be returned or disposed of, other
than in accordance with instructions from Alfa LU-VE. Contact your local Alfa LU-VE representative
before any remedial action is taken on the units, otherwise warranty may be void.
2.7 Damaged heat exchangers
At the moment of delivery, carefully check the units. Any present damage must be reported on the
delivery note with a description of the damage. Damaged heat exchangers, including when the
damage is not externally visible, are to be reported to the shipping agent and Alfa LU-VE within 24
hours.
3 Installation & Operation
The instructions below are complementary to the information in the instruction manual that is sup-
plied with every unit.
3.1 Location
Heat exchangers should be positioned such that the following criteria are met:
• Adequate space must be left on the air inlet side of the heat exchanger. The air discharge side
should be free of restrictions. Hot air recirculation is to be avoided. More detailed instructions as
given in the instruction manual are to be respected.
• If several heat exchangers are set up close to one another, this is to be carried out in such a
way that there is no danger of short circuiting of the air flow.
• The heat exchanger should not be connected to ducting on either the air inlet side or discharge
side, unless the heat exchanger has been specifically designed for such an application.
• Unless explicitly stated in the product documentation, air cooled condensers and gas coolers are
not intended for use in potentially explosive environments.
It is important to remember that the total amount of heat to be dissipated depends on receiving the
full design air volume at the design entry air temperature, which allows this air to be freely dis-
charged after passing through the heat exchanger. Any restrictions may impair the performance of
the heat exchanger. If in doubt, please check with Alfa LU-VE.
EN
