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IOM_CLVBA-CLVA_401_208095_200801_EN
CLVBA-CLVA
EVAPORATION UNITS AIR-AIR
MAINTENANCE
It is advisable to do maintenance works every 1.000 operating hours as well as at the beginning of each cooling season.
In case of leakage, any manipulation and / or recovery of refrigerant must be carried out by qualified and accredited
personnel in the current regulations.
CONSERVATION AND CLEANING
Electrical circuit
: Make sure that all electrical connections -wires, contactors and terminals- are properly tight. Record the
readings for volts and amperes of each compressor and fan motor. Verify the starting current. Check the good operation
of all relays, pressure switches and phase sequence relay of Scroll compressor.
Coils
: At least once a year, clean condenser coils with water and detergent, then dry with air at a low pressure. Never
clean with wire brush.
Fans:
Check the direction of rotation of the fans. Examine the support of the fans. Check the operating status.
Before handling the fan, make sure that it is disconnected from the main power, even if it is already stopped and that
nobody can start it during the intervention.
- It is necessary to make a regular inspection of the unit. Its frequency must be based on the working conditions to avoid
the accumulation of dirt in propellers, turbines, motors and grids that could entail risks and shorten its life.
- Be very careful not to unbalance the propeller or the turbine in cleaning operations.
- Must observe the current safety legislations of each country in all maintenance and repairing works.
Motors and fans do not need any additional lubrication.
Transmission belts:
Check the status and the tension of the transmission belt, at least twice the first operating month,
after every 1000 operating hours.
Drainage system
: Verify condition and good operation of the drainage tray and the drain trap.
Air filters:
Clean filters after the first operating hours to collect possible light materials such as papers, pieces of porexpan,
etc. left over from the installation and that have been dragged through the air circulation. Clean again every 3 months (or
more often according to its operation). The filter can be cleaned with soapy water, after rinse it with clean water and let
dry. If necessary, replace filters before they are in bad conditions (check current legislation of each country, EN 779, UNE-
EN
13053…).
Before performing any service or maintenance operation it is mandatory to turn off the main
power switch of the system to avoid any personal injuries. Locked it so that nobody other
than a qualified technician can switch on electrical power
WARNING!