Geely EC718, EC718RV, EC715, EC715RV. Manual part

Geely EC718, EC718RV, EC715, EC715RV. Manual part - 342

A/C Refrigerant Recycling and Filling Machine

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Control Panel Features
Filling machine operators can use control buttons and indicator light to control and monitor operations. Refer to filling machine
manual, which should include the following:

1. Main Power Supply Switch: Control panel power supply.

2. Display: Programmed vacuum time and re-filling weight of the refrigerant. Refer to the manufacturer's instruction manual to

understand the detailed programming information.

3. Low-pressure Side Manifold Pressure Gage: System low pressure.

4. High-pressure Side Manifold Pressure Gage: System high pressure.

5. Control Panel: It includes control of various operational functions of the control.

6. Low-pressure Side Valve: The valve is used to connect low-pressure side and air-conditioning systems filling machine.

7. Humidity Indicator: This indicator is indicative of refrigerant wet.

8. High-pressure Side Valve: The valve is used to connect high-pressure side and air-conditioning systems filling machine.

Refrigerant Recovery

Note

Only use machine specially designed for filling the refrigerant tank. Anti-overcharge filling machine body is designed
for the use of such refrigerant tank and calibration. The refrigerant tank valve is manufactured specifically for the device.

1. Connect the high pressure side hose quick connector to the vehicle air-conditioning system.

2. Open the high pressure side connector valve.

3. Connect the low pressure side hose quick connector to the vehicle air-conditioning system.

4. Open the low pressure side connector valve.

Note

If the refrigerant runs out, immediately stop recovery operations, otherwise the air will be inhaled into the recovery
tank.

5. Check the filling machine control panel high pressure and low pressure gage to ensure that air-conditioning systems are under

pressure. If there is no pressure, then there is no recyclable refrigerant.

6. Open high pressure and low pressure valves.

7. Open the refrigerant air and liquid valve.

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8. Empty refrigerant oil in the oil separator.

9. Close release valve.

10. Connect the filling machine to the appropriate power outlet.

11. Connect the main power switch.

Note

Do not mix the old refrigerant oil and the new refrigerant oil together. The old oil may have aluminum deposit or
mixed with other foreign matter. Re-fill the air-conditioning system, make sure use the new refrigerant oil. Properly
discard the used refrigerant oil.

Note

Part of the air-conditioning systems 100 PG lubricant may be recycled along with the refrigerant. Filling machine
separates the lubricant and the refrigerant, it can determine the amount of recovered oil. When re-filling system,
add the equivalent weight lubricant. Refer to the manufacturer's manual to learn more about filling machine.

12. Start the recycling process. Refer to the manufacturer's manual to learn more about filling machine.

13. Wait for 5 min, and then check the control panel low pressure gage. If the air-conditioning system maintains the vacuum, then

the recovery is completed.

Note

If the control panel indicator light showing refrigerant can full in the recovery period, and the filling machine is turned
off, then load an empty can, for the refrigerant storage. Do not use other types of refrigerant cans.

14. If the low pressure gage readings increase from zero, it indicates that system still has refrigerant. Recover the remaining

refrigerant. Repeat this step until the system maintains a vacuum 2 min.

Emptying

Refrigerant tank filling machine must be equipped with sufficient amount of R-134a refrigerant for filling. Check refrigerant tank. If
the cooling agent is less than 3.6 kg (8 lb), add new refrigerant to the refrigerant tank. Refer to filling machine instruction manual to
find ways to add refrigerant.

1. Check whether high pressure and low pressure hoses are connected to the air-conditioning system, open the filling machine

Control Panel high pressure and low pressure valves.

2. Open the refrigerant tank air and liquid valves.

Note

Refer to the manufacturer's instruction manual to learn more about filling machine. The system must first be emptied
in order to re-fill new refrigerant or regenerated refrigerant.

3. Start the vacuum pump and start emptying process. In the recycling process, the non-condensed gas (mostly air) automatically

discharges from the tank. You will hear the sound of pressure relief.

Note

Regularly change the vacuum pump oil. Refer to the manufacturer's instruction manual to learn more about filling
machine.

4. Check whether the system leaks. Refer to the manufacturer's instruction manual to learn more about filling machine.

Air-conditioning System Lubricant Filling

Add lubrication oil, as the oil is discharged during the air-conditioning system recovery.

1. Use lubricant with a scale of bottled 100 PG exclusively for R-134a system.

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2. Refer to the manufacturer's instruction manual to learn more about filling machine. add the appropriate amount 100 PG lubricant

to the system.

3. When the fuel injection meet the requirement, close the valve.

Note

Remember to tighten the oil cap to prevent moisture or contaminants entering. This operation requires air-
conditioning systems to have a certain degree of vacuum. Do not open filling valve when the air-conditioning system
has a positive pressure, otherwise it will lead to oil flow back to the Oil Bottle. When filling or adding lubricant, the
oil level can not be lower than the oil-absorbing tube, otherwise air will enter the air-conditioning system.

Filling

Note

Empty before filling the air-conditioning system.

1. Close the Control Panel low pressure valve.

2. Close the Control Panel high pressure valve.

3. Refer to the manufacturer's instruction manual to learn more about filling machine.

4. Fill the air-conditioning refrigerant with necessary amount to ensure that the correct units measurement (i.e. kilograms or pounds).

5. Start Filling.

Refrigerant filling successfully completed

1. Close filling machine control panel high pressure and low pressure valves. two valves should be closed.

2. Start the vehicle and turn on the air-conditioning system.

3. Keep the engine running, until the high pressure and low pressure gage pressure readings are stable.

4. Compare the reading with the system specifications.

5. Check the evaporator outlet temperature to ensure that air-conditioning system operating system specifications.

6. Keep the air-conditioning running.

7. Close high pressure quick connector valve.

8. Disconnect the high pressure hose from the vehicle.

9. On the control panel, open high pressure and low pressure valves. The system will quickly inhale refrigerant through the low

pressure hose.

10. Disconnect the low pressure quick connector valves.

11. Disconnect the low pressure hose from the vehicle.

Refrigerant filling unsuccessful

Sometimes refrigerant entering the air-conditioning system does not meet the total filling volume. There are two reasons for this
situation:

1. Filling machine pressure and the air-conditioning refrigerant pressure is similar. It will lead to filling too slowly. Refer to the

manufacturer's instruction manual to learn more about filling machine.

2. There is not enough refrigerant in refrigerant tank for filling. In this regard, recover the refrigerant from the vehicle, and then

empty the air-conditioning system, add refrigerant to refrigerant tank, then finally re-fill. Refer to the manufacturer's instruction
manual to learn more about filling machine instructions.

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