Daikin ZH7SLF Инструкция по эксплуатации IV ver онлайн [8/58] 527034

Si50-402 Periodic Inspection

Semi-Hermetic Single Screw Compressor Version IV 7

(4) Charging oil

Connect a vacuum pump to the suction service port (1/4” DCut) on the casing. While

evacuating the compressor, add oil from the discharge service port (3/8" DCut).

 Use IDEMITSU DAPHNE FVC68D refrigeration oil (or equal such as CASTROL

ICEMATIC SW68) for refrigerant R407C, R134a, or R404A.

Caution Even though the CASTROL ICEMATIC SW68 is similar to the IDEMITSU DAPHNE

FVC68D in the property under the standards, it is not recommended due to a high level

of hydrolyte. In order to use the CASTROL ICEMATIC SW68 due to the reason that the

IDEMITSU DAPHNE FVC68D is hard to be got outside Japan, observe the following

points.

• To refill or replace refrigeration oil, make it a rule not to mix different types of oil.

• To refill different types of oil, follow the procedure shown below.

a) Check to be sure on the oil level gauge that oil returns, following the procedure shown

in Section 3-2.2), and then discharge the oil.

b) Fill replacement oil (new oil). (Do not expose the new oil to air until just before filling.)

c) Evacuate the compressor for a minimum period of one hour, and then charge the

refrigerant.

d) While operating the refrigeration machine for a period of approximately an hour, clean

the inside of the system.

e) Discharge the oil in the same manner as that shown in a) above.

) Following b) above, fill the replacement oil (new oil) again. (Do not expose the new oil

to air until just before refilling.)

g) Evacuate the compressor for a minimum period of 12 hours, and then charge the

refrigerant.

h) Check to be sure that moisture content in the system is 75 PPM or less. (If this

condition is not satisfied, use a drier to operate the system.)

For the refrigerant R22, use SUNISO 4GSD (or equal such as SUNISO 4GS, COSMO

SUPER FREEZE 56, BP ENERGOL LPT-F46, or POLAROL SUPER 56).

Caution Use the equal oil only if the SUNISO 4GSD is hard to be got outside Japan, provided that

the following points shall be observed.

• To refill or replace refrigeration oil, make it a rule not to mix different types of oil.

• To refill different types of oil, follow the procedure a) through f) shown below.

 Add the same amount of new oil as drained because some remains in the refrigerant and

on various parts inside. Drained oil contains refrigerant and appears to be more in

volume than actual oil amount. Stir the oil to evaporate the dissolved refrigerant before

measuring. Do not add more oil than necessary, since an excessive amount of oil

reduces oil separation efficiency and causes system problems. (Oil surface should be

visible on the level gauge during equipment operation.)

 Take care not to let in air, or dust and other foreign particles remaining on the bottom of

the oil container.

 Since oil is apt to absorb moisture, be sure to use new oil.