EN-10
E N
Operation
First commissioning
●
Read the guides for commissioning any accessories very
carefully and follow all advice.
●
Check that the supply voltage corresponds to that given on
the wiring diagram.
●
If necessary, tighten the terminals on the electrics box again.
●
Switch the unit on and check that all the fans are turning in
the correct direction (direction of rotation shown on the labels).
In the event of abnormal noise coming from the fan motor
assemblies, immediately switch off the power supply and
contact your
CIAT agent.
●
Start charging by bleeding the air remaining in the circuit
using the vents provided in the top section.
●
Start increasing the pressure, then check that the pipe
connections are fully sealed.
If anomalies occur...
Your CIAT agent is available to provide you with any help you
may require. However, you will save time if you check the
following points first:
●
Are all fans turning in the correct direction? (check this
against the labels).
●
Is the supply voltage correct?
●
Are the motors running at the correct speed? (check the
input current).
●
Did you invert the direction of the fluids when connecting the
unit?
●
Are the fins of the coil clogged?
●
Are there any air recycling issues or a bad air supply?
Recommendations for use
●
Scaling and corrosion have a very negative effect on the
operation and the service life of the units. Therefore, only use
treated water (check the compatibility of any additives with the
unit's materials).
●
In the event of a prolonged period without use, we
recommend that the motors be dried in an oven so as to
remove any trace of humidity inside.
Maintenance
Recommendations for maintenance
●
Make sure power to the unit has been disconnected before
servicing.
●
All work must be performed by qualified personnel.
●
Do not make any modifications without the agreement of CIAT.
●
Do not walk directly on the unit.
●
For regulated units, don't forget the mandatory inspections.
●
In winter, do not allow snow to accumulate around and on top
of the unit.
●
Periodically check the condition of the anti-corrosion
protective coating and touch it up if necessary.
●
The category (DESP) as specified by directive 97/23/EC is
indicated on the specification attached to the order
acknowledgement receipt. The year of manufacture is given on
the manufacturer's plate.
Cleaning the bundle
Ensuring a good level of cleanliness is a defining factor for
maintaining the performance and service life of the unit.
Periodically check to see if the finned bundle is clogged and
clean it as often as local conditions require.
●
Normal cleaning is carried out using a compressed air jet
directed parallel to the fins.
●
If there is significant amount of clogging with greasy dust, it
is possible to clean using water mixed with a detergent which
is compatible with the materials. It is also possible to use a
high-pressure steam cleaner. Cleaning must be followed by
thorough rinsing with clear water.
●
Use of a high-pressure liquid cleaner is forbidden.
●
In all cases where it is authorised, cleaning must be carried
out carefully to ensure that the finned surface is not damaged.
When necessary, straighten the fins using a comb adapted to
the line of the fins.
Maintenance of the motors
●
If there are any traces of humidity in the motors, it may be
necessary to dry them in an oven. They may also be left to run
for a few hours, in dry weather, removing the caps from the
bleed holes at the lower point (if the motor is equipped with
these). Remember to refit the caps so as to maintain the
degree of IP protection.
Maintenance frequency
Keep a maintenance log where all operations will be listed.
(1) Frequency adapted to suit local conditions.
(2) If this operation requires removal of the panelling, please
contact an approved CIAT agent.
Air bleed devices
Retighten the nuts and bolts on the fan motor assemblies (collar,
support, etc.)
6 months
Bleed motors equipped with bleed holes
6 months (1)
Clean the coil
1 year (1)
Tighten electrical connections
1 year
Retighten all visible nuts and bolts
1 year
Check for corrosion to the panelling and that the safety-related
labels are present
1 year (1)
Check the electric cables
5 years (2)
