Hitecsa CLVBA-CLVA 401, Installation, Operation & Maintenance Manual, Page: 14 / 18

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IOM_CLVBA-CLVA_401_208095_200801_EN
CLVBA-CLVA
EVAPORATION UNITS AIR-AIR
OPERATION
BEFORE START UP

Start up has to be performed by a qualified service personnel in air conditioning.

Make sure that panels are firmly secured with screws.

Check that there is no leakage of oil or refrigerant.

Ensure that the unit is evenly leveled.

Check if there is enough space for operation and maintenance.
Before opening the electrical panel and having access to the inside of the machine it is MANDATORY to
disconnect the power supply hose of the machine which MUST BE FREE OF VOLTAGE for this operation.

Check that the drainage is not blocked.

Always use the electrical diagram of the unit to make the connections.

Make sure that all electrical connections are properly tight.

The power supply of the unit must be as indicated on the serial plate. Damage caused by the start-up of the unit
in an incorrect voltage line is
not covered by Hitecsa’s warranty.

The unit must not be supplied with any other voltage than that the indicated on the serial plate. The power supply
to the unit must be within 10% of the voltage indicated on the serial plate.

Check the correct rotation direction of the fans.

The installer must place line protection elements in accordance with current legislation.

Wiring of electrical connections must be protected by a tube or other cable conduits.

Make sure if the crankcase heater of each compressor has been operating during 24 hours prior the start up.

Check that the air filters are clean and correctly fitted.

Check the condition and placement of grilles, diffusers, air ducts, tarpaulins, etc.
START UP

It is necessary to take notes of the air inlet and outlet temperatures to the internal coil, the volts and amps of the
compressor and motor fan, as well as the suction and discharge pressure of each compressor.

It should be remembered that it is necessary to clean the air filters after the first 4 hours of operation.

Observe, at least, 3 cooling cycle operations.

Due to the unit has frequency converters, it is essential that the protection be at least 300mA to prevent power
cuts caused by the activation of the circuit breaker.