ffTightening of connection parts

Alight the pipes to be connected and tighten the flare nuts with your hands first and then with a torque wrench, tighten it in a direction shown in below illustration.

-- You can avoid of gas leakage by applying refrigerant oil on the flare connection part.

Pipe

Flare connection part

Monkey

 

 

 

 

spanner

 

 

Torque

Flare nut

 

wrench

Diameter(D)

ø6.35mm

ø9.52mm

ø12.70mm

ø15.88mm

ø19.05mm

Torque (kgf•cm)

140~170

250~280

380~420

440~480

990~1210

• Apply the torque depending on the diameter and tighten it securely to make sure there is no leakage.

CAUTION

5.Eliminate the uncondensed gas with vacuum pump and open the service valve to put the refrigerant. -- Make sure to perform leak test. (Refer to 'Performing leak test' on page 50.)

6.Insulate the drain hose after connecting it.

-- Insulate it correctly to avoid dew formation.

ffPipe insulation

1) Insulate the refrigerant pipes heavily with the finishing tape.

Pipe insulation

Finishing tape

If the insulation is poor, dew may form and leak through the

 

 

 

indoor.

 

 

2) Use finishing tape wind up the refrigerant pipe.

Indoor/outdoor unit

Indoor/outdoor unit

3) When you bend the pipe and secure a minimum bending

communication cable

 

power cable

radius of 100mm to prevent any distortion of the pipe.

 

 

7. Wind a finish tape when connecting refrigerant pipe, and communication cable is completed.

 

Indoor unit

Outdoor unit

 

Low pressure

 

 

pipe

 

 

High pressure

 

Valve core

pipe

 

Flare nut

Low pressure side

L wrench

 

 

 

High pressure side

Service port cap

 

Stop valve

 

 

Service port

 

ENGLISH

43

사우디,인도,나이지리아향 FAC MEMORY 냉방_IBIM_EN_03794A(7).indd 43

2014-03-12 오전 10:30:00