Water chillers and
air-water heat pumps
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 12.122 H
44
CIATCooler LP
Recommendations
- Do not lean on the unit. A platform must be used to work on a level.
- Do not lean on the copper refrigerant tubes.
- Keep the unit clean.
- Keep the space surrounding the unit clean and cleared in order to
avoid accidents and ensure the proper ventilation of the coil.
- Perform a visual (remains of water or oil below or around the unit)
and auditory inspection of the entire installation.
- In general, a corrosion control must be performed on the metallic
parts of the unit (frame, bodywork, exchangers, electric panel, etc.).
- Check that the insulation foam is not unstuck or torn.
- All the electric connection states must be checked as well, as well
as the air tightness of the different circuits.
Next, some recommendations are stated for performing the
maintenance and cleaning of the unit's components:
13. MAINTENANCE
The minimal maintenance operations and their periodicity will be made
according to the national regulations.
Any intervention on the electric cooling components must be made by
a qualifi ed and authorized technician.
Technicians who intervene with the unit must use the necessary
safety equipment (gloves, goggles, insulating clothing, safety shoes,
etc.). Furthermore, if working around sources of signifi cant noise, we
recommend the use of noise-dampening headgear.
V-220004
Caution: Before intervening in the unit, cut off main
power.
Liquid sight glass (available from the model 200)
This sight glass, located on the liquid line, after the dehydrating fi lter,
enables controlling the refrigerant load and the presence of moisture
in the circuit. The presence of bubbles in the indicator means that
the refrigerant fl uid load is insuffi cient (see chapter 4 "Technical
characteristics") or that there are non-condensable products in the
cooling circuit. The presence of moisture is characterised by the change
in colour of the control paper located on the sight glass.
On CIATCooler units, the liquid sight glass is accessed via the electric
panel access panel (please, consult the section “refrigerant charge
load”).
Warning:
If the unit stops, certain indicators may appear in yellow; the change
in colour is due to the sensitivity, which depends on the temperature
of the fl uid.
These will change to green after a few hours of the unit operating.
If the indicators remain yellow, that will indicate the presence of
excessive humidity in the circuit. This will require the presence of a
specialist.
Air coil
- Check that the coil is free from dust and grease.
- Cleaning the accumulated dust on the coil can be performed with
a vacuum cleaner perpendicular to the fi ns or with a low-pressure
water cleaner. Grease can
be removed with water
with degreaser. Do not put
stress on the fi ns as they
could deform.
- If the unit includes a
protective grille for the
coil (optional), it will be
necessary to remove this
one. The grille is fi xed by
modules in the holes made
for this purpose in the unit
supports.
Protective grille
Access to the
electric panel
Door
switch
Liquid sight
glass
Dehydrating fi lter
- The fi lter function is to keep the cooling circuit clean and without
humidity, neutralising the acids that can be found in the cooling circuit.
- Verify dirt measuring the difference in temperature at the piping level,
at the inlet and at the outlet of the dehydrant.
- If necessary, replace.
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