Storage; Installation; Choice Of Location; Installation Recommendations - CIAT ITEX Manuel D'instructions

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2 - STORAGE

• Store the heat exchangers in a dry room protected from the
weather and maintained at a temperature between +5°C
and +35°C.
• The heat exchangers must be placed on blocks dimensioned
and adjusted to ensure adequate stability and levelness, on
a floor protected from caving in. Make sure that they do not
touch each other and that they are not in direct contact with
the floor and any walls.
• Protect them from impacts, dust and from the risk of liquid or
solid deposits and make sure that nothing is placed on them.
• Do not remove the protection on the end of the pipes until
you are ready to make the hydraulic connections.
• All unused spare parts must be stored away from damp,
light, and dust, and protected from impacts.
• Gaskets and gasketed plates must be stored in appropriate
boxes at a temperature of between 10°C and 30°C. Maxi-
mum shelf-life: 12 months from the invoice.

3 - INSTALLATION

Always read this guide carefully before working on the
unit and keep it in a safe place for future reference.

3.1 - Choice of location

The intended location of the unit should be fully accessible so
as to ease servicing and maintenance operations and allow
easy removal of the plates from the side of the unit (Fig. 3).
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Adequate clearance must be left in front of the safety and
control devices.
A
minimum recommended
value (mm)
Model A
DN32 700
DN50 1000
DN65 1000
DN100 1500
DN150 1500
DN200 2000
Fig. 3

3.2 - Installation recommendations

• CIAT plate heat exchangers have a limited operating pres-
sure and temperature range. Install all the necessary safety
devices to prevent overrunning the limits specified on the
order documents. Approval to use the plate heat exchang-
ers at higher conditions must be obtained from CIAT. It is
recommended to fit pressure and temperature test points
near the unit.
• Make sure that the heat exchanger is compliant with the
safety rules in force on the site of use (explosive atmos-
phere, etc.).
• Affix appropriate visual warning sign wherever the surface
temperature above 60°C or below 0°C.
• If the heat exchanger is to be installed on framework, the
structure must be designed to withstand the weight of the
exchanger when in operation (filled) and with its accessories.
• If necessary, affix the hazard symbol corresponding to the
fluid in accordance with applicable standards.
• Take all appropriate steps to mitigate the effects of any signifi-
cant human, environmental or financial consequences of failure.
• Make sure that the heat exchanger is always installed verti-
cally, stable, and secured using all its anchorage points. If
necessary, fit additional anchors suitable for the foreseeable
stresses.
• Install drains and vents, shut-off valves, and fill and drain
valves on the pipes so that the heat exchanger can be ser-
viced without disrupting the system.
• In the event of seasonal use, drain the heat exchanger com-
pletely to prevent any risk of freezing or corrosion if a cor-
rosive fluid is used.
• If accessories are installed on the heat exchanger, refer to
their specific instructions.

3.3 - Hydraulic connections

• To keep the insides of the pipes clean, do not remove the
seals on their ends until you are ready to make the hydraulic
connections.
• The insides of the pipes must be free of all foreign matter
(sand, welding slag, other solid matter, etc.) that could dam-
age the plates and gaskets.
• Filtration: If the fluids to be circulated through the heat ex-
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changer contain suspended matter, a filtration system of up
to 500 μm must be installed.
• Check the tightening dimension specified on the nameplate.
Refer to section 5.7 if retightening is needed.
• Make the hydraulic connections as instructed on the name-
plate on the frame or on the plate arrangement drawing.
• Never insert foreign matter into the circuit.
• No strain should be placed on the pipes (weight of connect-
ed pipes, expansion, vibrations
etc.).
• If threaded couplings are used,
do not apply the tightening torque
to the threaded nozzles.
• Threaded nozzles are not weld-
ed to the fixed head. To avoid
damaging the first gasket, hold
the threaded nozzles in place
with pliers and screw on the Fig.4
pipes (Fig. 4).
• If the ports on the fixed head are
fitted with protective built-in linings, the linings must be suffi-
ciently compressed so that the head and the counter-flange
are separated by a 2 mm gap (tightening any further will
damage the linings).
• In the case of a multi-pass heat exchanger (fluid inlet and
outlet ports on both ends): install an expansion fitting or a
horseshoe loop and use detachable pipes so that more plates
can be added and the movable follower can be removed.
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