Daikin C-Series Especificações descarregar pdf (Página 18)

Application Information

(6) Special Precautions When Dealing With R410A Unit

R410A is a new HFC refrigerant which does not damage the ozone layer. The working pressure of this

new refrigerant is 1.6 times higher than conventional refrigerant (R22), thus proper installation / servicing is

essential.

Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A.

POE or PVE oil is used as lubricant for R410A compressor, which is different from the mineral oil used for

R22 compressor. During installation or servicing, extra precaution must be taken not to expose the R410A

system too long to moist air. Residual POE or PVE oil in the piping and components can absorb moisture

from the air.

To prevent mischarging, the diameter of the service port on the ﬂ are valve is different from that of R22.

Use tools and materials exclusively for refrigerant R410A. Tools exclusively for R410A are manifold valve,

charging hose, pressure gauge, gas leak detector, ﬂ are tools, torque wrench, vacuum pump and refrigerant

cylinder.

As an R410A air conditioner incurs higher pressure than R22 units, it is essential to choose the copper

pipes correctly. Never use copper pipes thinner than 0.8mm even though they are available in the market.

If the refrigerant gas leakage occurs during installation / servicing, be sure to ventilate fully. If the

refrigerant gas comes into contact with ﬁ re, a poisonous gas may occur.

When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigerant

cycle.

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Daikin C-Series Especificações Página 18