General Care; Refrigerant Charge - SURREY CWAZH072 Manual De Instalación, Operación Y Mantenimiento

7.3 - GENERAL CARE

a) Keep the cabinet and the grids, as well as the area
around the unit as clean as possible.
b) Periodically clean the condenser coil with a soft brush.
If the fi ns are too dirty use low-pressure water or air in
the direction opposite to the air fl ow. Be careful not to
damage the fi ns. If they are creased, it is advisable to
use a proper fi n comb to correct the problem.
c) Check the setting of the connections and other fi xtures,
preventing vibrations, losses and noises.
d) Make sure the insulation of the plated parts and piping
are at the proper location and in good conditions.
e) Periodically check if the voltage and the phase
imbalance is within the specifi c limits.
f) Check if the Y fi lter and the water supply line are clean.
g) Check the operation of the cold water fl ow valve.

7.4 - REFRIGERANT CHARGE

These units are shipped with full refrigerant R-407C
charge.
In case a lack of refrigerant is found a equipment already
charged, proceed as indicated in the fl owchart below:
Never load refrigerant in the state for the side low
pressure of the system.
Procedure for reloading of refrigerant
START
LOCATE LOSS
FIX LOSS
CHECK TIGHTNESS
PERFORM VACUUM
CHARGE REFRIGERANT R-407C (PART CHARGE)
START-UP EQUIPMENT
COMPLETE REFRIGERANT CHARGE WITH R-407C
END
ATTENTION
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