Assembly And Installation Instructions - Onda EKC Manuel D'emploi

HEAT EXCHANGER ASSEMBLY
Heat echangers are not designed to resist wind and snow
loads. It is necessary to adopt appropriate prevention
measures, if there is the risk of overload on the assembly
place. In case of a heavy snowfall, we advise to remove
snow to avoid overloading.
Moreover, heat exchangers are not designed to resist
extreme weather conditions and to be assembled on
vehicles.
Heat exchangers capacity is mainly determined by the
air quantity circulating through the laminated block and
by the temperature of incoming air. For this reason, it is
necessary to limit possible obstacles to air circulation due
to constructions, snow or dirt.
It is also necessary to grant enough free room from the side
where air comes in the refrigerator/refrigeration condenser.
Pressing heat exchangers must be at a minimum distance
equal to the ventilator diameter from the wall. Suction-line
heat exchangers must be at a minimum distance from the
wall equal to ¾ of its diameter.
If obstacles to free movement occur, it is necessary to
increase the distance from the wall.
To this end, it is necessary to consider products, structural
elements and carrying structures, reinforcement structures
which offer resistance against air (they are directly placed
along the airflow).
The installer is responsible for the appropriate use of
suction-line heat exchangers without obstacles.
Every load on the cold or freezing room
offers resistance against the airflow. When
ordering the heat exchanger, the installer
must report on their own assessment or
forecasting about resistance against airflow.
Heat exchangers cannot be connected to air shafts, neither
on the side of incoming air nor on the side of outgoing
air, unless those shafts are consciously designed for that
specific application.
10
ASSEMBLY INSTRUCTIONS / INSTALLATION
Heat exchangers must be installed in compliance with
international rules in force concerning installation of
electro-technical and refrigeration devices and this
procedure must be performed by skilled installers.
The machine level of our heat exchangers must be
performed by skill installers.
Dimensions, weight, anchor stitches and fixing points are
indicated in the product documents and in the machine
drawing. Anchor stitches must not transmit vibrations
and/or strains to our products. Anchor stitches and fixing
points, if possible, must be fitted with slotted holes in
order to offset any possible differences in measures. The
nameplate on every heat exchanger indicated the loadless
weight.

ASSEMBLY AND INSTALLATION INSTRUCTIONS

Check that all ducts are not subject to any vibrations or
strains.
Ducts must be fixed to the refrigerated room wall or ceiling
no to the heat exchanger. Before the initial start-up, it is
necessary to check the watertightness of all connections
of the circuits of the heat exchanger refrigerating fluids
and media by performing vacuum where the installation
procedure is performed.
Defrost water discharge pipes must have a sufficient
inclination in order to enable the discharge and to be fitted
with a siphon. Moreover, it is advisable to connect the
discharge pipe to the discharge collecting tank in order
to eventually disassemble the discharge collecting tank.
In refrigerating rooms, the discharged pipe must be fitted
with an internal and external heating element. If an external
heating element is used, this one must cover completely
the refrigerator. Before turning on the refrigerator, it is
necessary to ensure that the discharge is free from any
possible dirt which might block it.