R and V Works FF6 Informations techniques télécharger pdf (Page 57)

Compressor Application Manual

5 - Water

A little water in the sealed unit can cause freezing

and block the capillary outlet. The blockage,

although partial, will hamper the operation of the

refrigeration system. Moreover, water reacts

chemically with the refrigerant to form acids.

These acids attack the metal parts of the

compressor and destroy the motor insulation,

causing a short circuit and burnout.

6 - Antifreeze

Methyl alcohol or any other antifreeze is extremely

harmful to the refrigeration system. Alcohol and its

byproducts, also react with the refrigerant to form

acids that are detrimental to the compressor, as

described in the preceding item. Antifreeze does

not insulate or eliminate the water from inside the

sealed unit and only lowers the water's freezing

point, to prevent ice from forming at the outlet of

the capillary to the evaporator.

Antifreeze in the presence of heat and water reacts

with the refrigerant and lube oils to produce acids

that attack (perforate) the aluminum evaporators

and inside components of the compressor, such as

electrical insulation and coil wire varnishes.

VIVI

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R and V Works FF6 Informations techniques Page 57