Daikin BRC1E51A7 Manuel d'installation télécharger pdf (Page 15)

English 13

• When the airtight test is performed for the indoor unit and inter-unit piping after indoor unit installation, be

sure to refer to the installation manual for the indoor unit or technical guide for airtight pressurization and

refrigerant piping installation.

• Shortage of refrigerant due to air purge or losing the additional refrigerant charging may cause the failure

of the unit (does not sufficiently cool or heat).

Be sure to refer the installation manual or the engineering guide for the outdoor unit at the refrigerant piping

work.

• Nitrogen should be set to 0.02MPa with a pressure-reducing valve if brazing while inserting nitrogen into

the piping. (Refer to Fig. 18)

CAUTION

• Do not use anything such as the oxidation inhibitor when brazing. (Residues may result in the clogging pipe

or parts damage.)

Nitrogen

Pressure-reducing valve

Hands valve

Taping

Refrigerant piping

Part to be

brazed

Nitrogen

Fig. 18

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 31 32

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Daikin BRC1E51A7 Manuel d'installation Page 15