LG GA-B379UVQA Bedienungsanleitung PDF herunterladen (Seite 17)

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NO. ITEMS CONTENTS AND SPECIFICATIONS REMARKS

WELDING

ROD

FLUX

LOKRING

(Figure 23,24)

DRIER ASM

VACUUM

DRY AND AIR

NITROGEN

GAS

NIPPLE AND

COUPLER

PIPE

(1) H 30

• Chemical Ingredients

Ag: 30%, Cu: 27%, Zn: 23%, Cd: 20%

• Brazing Temperature: 710~840°C

(2) Bcup-2

• Chemical Ingredients

Cu: About 93%

P: 6.8~7.5%

The rest: within 0.2%

• Brazing Temperature: 735~840°C

• Ingredients and how to make

Borax 30%

Borax 35%

Fluoridation kalium: 35%

Water: 4%

Mix the above ingredients and boil until they are

transformed into liquid.

(1) Both of the tube is inserted up to the stop.

(2) Both of the LOKRING is pushed up to the stop.

(3) The bending point is not too close to the joint ending.

(4) During the assembly it is important that both ends

remain completely within the joint.

(1) Assemble the drier within 30min. after unpacking.

(2) Keep the unpacked drier at the temperature of

80~100°C.

(1) When measuring with pirant Vacuum (1 )gauge the

charging M/C, vacuum (1 )degree is within 1 Torr.

(2) If the vacuum degree of the cycle inside is 10 Torr.

below for low pressure and 20 Torr. for high pressure,

it says no vacuum leakage state.

(3) Vacuum degree of vacuum pump must be 0.05 Torr.

below after 5 min.

(4) Vacuum degree must be same to the value described

item (2) above for more than 20 min.

(1) The pressure of dry air must be more han

12~16kg/cm

(2) Temperature must be more than -20 ~ -70°C.

(3) Keep the pressure at 12~16kg/cm

also when

substituting dry air for Nitrogen Gas.

(1) Check if gas leaks with soapy water.

(2) Replace Quick Coupler in case of leakage.

• Put all Joint Pipes in a clean box and cover tightly

with the lid so that dust or humidity is not inserted.

• Recommend H34 containing 34% Ag in the Service

Center.

• Make amount for only day. Holding period: 1 day

• Close the cover of container to prevent dust putting in

the FLUX.

• Keep it in a stainless steel container.

• For a hermetically sealed metal/metal connection, the

tube ends have to be clean.

• LOKPREP is distributed all of out-surface of the tube

ends.

• Don't keep the drier in a outdoors because humidity

damages it.

• Apply M/C Vacuum Gauge without fail.

• Perform vacuum operation until a proper vacuum

degree is built up.

• If a proper vacuum degree isn't built up, check the

leakage from the Cycle Pipe line part and Quick

Coupler Connecting part.

• Check if gas leaks from joint of the Coupler.

General Control of Refrigerating Cycle

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 36 37

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