Installation
English 5
AlfaNova 14–76, Part no. 34562191-03
Function
Fusion plate heat exchangers consist of a pack of bonded
corrugated metal plates with ports for the passage of the two
fluids between which heat transfer will take place.
The media in the heat transfer are led into the bonded plate
pack through portholes at the corners and are distributed into
the passages between the bonded, corrugated plates.
The heating surface consists of thin corrugated plates stacked
on top of each other. In the fusion process at high temperature
channels are formed between the plates and corner ports are
arranged so that the two media flow through alternate
channels, always in counter-current flow. The contact points
are also bonded to withstand the pressure of the media
handled. Also see Figure 2.
Installation
Requirements
Note!
Unless otherwise specified, product data for normal
refrigerants, i.e. HFC and HCFC, are applicable to refrigeration
applications. The manufacturer must be specifically consulted
before the heat exchanger is used for flammable, toxic or
dangerous liquids (e.g. hydrocarbons). The use must follow the
relevant safety rules for handling such liquids. For further
information, please refer to the supplier's website.
Also see Figure 4.
Installation in general
Note!
Before connecting any piping, make sure all foreign
objects have been flushed out of the system.
The installation must be provided with equipment that protects
the heat exchanger against pressures and temperatures
outside the approved minimum and maximum values shown on
the name plate.
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 flammable substances. Also see
Figure 4.
Installation as evaporator
Note!
To avoid damage due to freezing, the medium used
must include an anti-freeze agent at operating conditions
below 5 °C/41 °F and/or when the evaporating temperature is
below 1 °C/34 °F.
Note!
In evaporator applications and in applications in which a
phase change of the media occurs, the heat exchanger should
be installed vertically.
WARNING!
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.
WARNING!
Safety valves should be installed
according to pressure vessel regulations.
