AIA 34563464-01 Manual De Instalación página 10

4
13. Information unique to the customer.
14. *Possible locations of connections.
15. Bar code information.
16. Space for mark of approval
*) Sketch on nameplate showing possible locations of
connections depending on heat exchanger execution.
Caution: The heat exchanger must be installed
and operated in such a manner that no risk of
injury to personnel and damage to property will
be incurred.
Note: Unless otherwise specified, product data for normal
refrigerants, i.e. HFC and HCFC, are applicable to refrig-
eration applications. The manufacturer must be specifi-
cally consulted before the heat exchanger is used for
flammable, toxic or dangerous liquids (e.g. hydrocar-
bons). The use must follow the relevant safety rules for
handling such liquids. For further information, please refer
to the Internet site of the supplier.
Installation
The installation must be provided with equipment that pro-
tects the heat exchanger against pressures and tempera-
tures outside the approved minimum and maximum val-
ues shown on the nameplate.
For best possible heat transfer performance, the heat
exchanger should be connected so that the media flow
through the heat exchanger in opposite directions (in
counter-flow). Take into account the risk of fire during the
installation work, i.e. bear in mind the distance to flamma-
ble substances.
For refrigeration applications – Figure A1 shows the
installation of an evaporator, for which the connections
may be either on the front or on the rear. Figure B1 shows
a condenser.
Figure C1 shows a double-circuit unit having one water
circuit and two independent refrigerant circuits. Unless
otherwise specified, the refrigerant circuits have diagonal
flow. Connect the refrigerant to the side with the brazed
connections (or Rotalock), with the inlet at the bottom for
an evaporator. The expansion valve should be located at
least 150–200 mm from the connection at S3. Pipe
elbows between the expansion valve and the connection
should be avoided. Order the heat exchanger with the
connection position for the liquid (water) side that is best
suited for the installation, i.e. (S1, S2) or (T1, T2). Figure
D1 shows a pre/post heater.
Mounting
In a rigid pipe system, small heat exchangers (weighing
1–6 kg) can be suspended directly in the pipe-work (Fig-
ure A2). Larger heat exchangers should be secured with
support mountings (Figure D2) intended for a specific
heat exchanger (accessory), or be secured with straps
(Figure C2) or by means of mounting bolts (Figure B2). To
special order, mounting bolts can be welded to the front or