Haier No. 0010572410 Purging method the refrigerant is R407C, To use vacuum pump

Page 15

INSTALLATION MANUAL FOR OUTDOOR UNIT

(5) Purging method ( the refrigerant is R407C)

To use vacuum pump

1

Detach the service port's cap of 3-way valve, the valve rod's cap for 3-way valve and 3-way's, connect the service port into the projection of charge hose (low) for gaugemanifold. Then connect the projection of charge hose (center) for gaugemanifold into vacuum pump.

2

Open the handle at low in gaugemanifold, operate

vacuum pump. If the scale-moves of gause (low) 2 Open reach vacuum condition in a moment, check 1 again.

3

Vacuumize for over 15min. And check the level gauge which should read -0.1 MPa (-76 cm Hg) at low

pressure side. After the completion of vacuumizing,

close the handle 'Lo' in gaugemanifold and stop the3 Close operation of the vacuum pump.

Check the condition of the scale and hold it for 1-2min. If the scale-moves back in spite of tightening, make flaring work again, the return to the beginning of 3 .

Liquid pipe

6.35mm(1/4'')

Gas pipe

12.7mm(1/2'')

3-way valve 3-way valve

Gaugemanifold

Vacuum pump

4

Open the valve rod for the 3-way valve to and angle of anticlockwise 90 degree.

After 6 seconds later, close the 3-way valve and male the inspection of gas leakage.

5In case of gas leakage, tighten

No gas leakage?

parts of pipe connection. If

leakage stops, then proceed 6

 

 

steps.

6

Detach the charge hose from the service port, open 3-way valve and 3-way. Turn the valve rod anticlockwise until hitting lightly.

7

To prevent the gas leakage, turn the service port's cap, the valve rod'd cap for 3-way valve and 3-way's a lottle more than the point where the torque increases suddenly.

3-way valve 3-way valve

90

90

Service port

4 90 for 6 sec.

 

 

If it does not stop gas leakage, discharge whole refrigerants from the serice port. After flaring work again and vacuumize, fill up prescribed refrigerant from the gas cylinder.

3-way valve

3-way valve

6

6

8

After attaching the each caps, check the gas leakage around the caps.

CAUTION:

If the refrigerant of the air conditioner leaks, it is necessary to make all the refrigerant out, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.

3-way valve

3-way valve

 

7 Valve rod cap

7 Valve rod cap 7 Service port cap

14

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Contents Duct Type AIR Conditioning Table of Contents Disposal of the old air conditioner Make sure the system is grounded Safety PrecautionsDo not operate the system while Machine is adaptive in following situation Applicable ambient temperature rangeParts and Functions Cooling is not sufficient MalfunctionUnit fails to start Cooling or heating is not sufficientShuru Shuru Followings are not malfunctionPoints to observe Care and MaintenanceHOT KEEPis operated in the following cases When heating is startedInstallation place Installation Manual for Outdoor UnitInstallation where the area with strong winds InstallationOpen space requirement around the unit Piping connection Precautions for refrigerant pipingOutline piping Piping sizeTo use vacuum pump Purging method the refrigerant is R407CInstallation Manual for Indoor Unit Preparation of indoor unit Avoid installation and use at those places listed belowPreparation for suspending the unit Figure of installation dimension unit mmUse embedded parts and foot screw, etc to mount Original cement panel Connection pipe Liquid side Electric wiring Installation Manual for Electric Wiring

No. 0010572410 specifications

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