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Unit Maintenance
MAINTENANCE
Service or maintenance of these units should be performed by
experienced personnel with specific refrigeration training. Check
Repeated safety devices and cycle control components should be
analyzed and corrected before initiating a restart.
The simplified design of the refrigeration circuit completely
eliminates potential problems during regular operation of the unit.
No maintenance is required on the refrigeration circuit as long as
the unit operates regularly.
Ease of maintenance has been taken into account during the
design phase; thus, the unit is easily accessible for service and
maintenance. By accessing through the panel on the front of the
unit, service and maintenance of the unit can be easily performed.
The electrical components are located in the terminal box at the
top of the front panel, allowing easy access to them.
Under normal circumstances, this water chiller unit requires only
a check and cleaning of the air inlet through the coil surface. This
can be done monthly or quarterly, depending on the environment
in which the units are installed.
When the environment is constantly invaded with grease or dust
particles, the coils should be cleaned by an air conditioning
service technician on a regular basis to ensure adequate cooling
capacity and therefore efficient operation of the Unit. The regular
life of the unit may be shortened if proper service is not performed.
For continued durability and performance of the unit, proper
maintenance should always be performed on a regular basis.
Over long periods of operation, the heat exchanger will become
fouled, impairing efficiency and reducing the units performance.
Consult your local supplier about cleaning the heat exchanger The
internal water circuit requires no further maintenance or service,
except in the event of a water pump failure. It is recommended
that the water filter be checked periodically and replaced if it is
dirty or clogged.
Always check the water level in the system to protect the moving
parts of the hydraulic kit from overheating and excessive wear.
NOTE: The company is not responsible for the malfunction
of the unit if the main cause is lack of maintenance
or the operating conditions of the unit do not
correspond to those recommended in this manual.
GENERAL
Routine checks and maintenance should be performed during
initial operation as well as periodically during start-up. These
include checking the liquid lines, condensing and suction pressure
measurements, and checking the unit for normal overheating and
undercooling. A maintenance schedule is recommended at the
end of this section.
COMPRESSOR MAINTENANCE
Internal pressure and surface temperature are dangerous and
could cause permanent injury. Maintenance operators and
installers must have the proper tools and knowledge.
Tube temperatures can exceed 100°C and could cause severe
burns. Ensure that regular maintenance inspections are carried
out to ensure reliability and compliance with local regulations. To
avoid system-related compressor problems, perform the following
recommended periodic maintenance tasks:
www.clima-flex.com
• Check that safety devices are operational and properly
adjusted.
• Make sure that the system is not leaking.
• Check the compressor current level.
• Confirm that the system is operating in a manner consistent
with previous maintenance records and ambient conditions.
• Check that all electrical connections are securely fastened.
• Keep the compressor clean and check for rust and rust on
electrical connections, tubing and compressor housing.
ELECTRICAL TERMINALS
Electrical connections should be inspected and tightened if
necessary. Heat and vibration can cause connections to loosen
and fall out, thus causing arcing stress.
For servicing electrical components:
- Disconnect main electrical lines before repairing or replacing
any components or cables.
- Tighten all wire connections attached to the terminal block and/
or components.
- Check connectors, cables and/or components for burn marks,
frayed wires, etc. If any of them present these conditions, they
should be repaired. or replaced.
- The voltage on the equipment should be checked with a meter
periodically to ensure adequate power supply.
NOTE: Each unit comes with complete wiring. Have the
diagrams
handy
Electrical connections required at the time of
installation are: Power line to power inlet and
control wiring for the remote control. Do not wire
the remote control with high voltage wires. High
voltage may interfere with the control signals and/
or may cause erratic or poor operation.
!
Risk of electric shock, can cause injury and death.
Disconnect all power sources before inspecting the fan.
Disconnect all electrical power sources when working inside
the unit. Potentially lethal voltages exist within the equipment
during operation.
Review all cautions and warnings contained in this manual.
Only qualified personnel should service this unit.
CONDENSER
Maintenance consists mainly of removing dirt and debris from the
outer surface of the fins and repairing any damage to the fins.
For units installed in corrosive environments, cleaning of the fins
should be part of the regular maintenance program.
In this type of installation, dust and debris should be removed
promptly to avoid build-up that will interfere with the regular
operation of the unit.
111
when
making
connections.
!
WARNING
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