Kogan SmarterHome KASHSAC80TA Handleiding (68 Pagina's)

Handleiding

27

Step 6: Vacuum Pumping

1. Use a spanner to remove the protective caps from the service port, low pressure

valve and high-pressure valve of the outdoor unit.

2. Connect the pressure hose on the manifold gauge to the service port on the

outdoor unit low pressure valve.

3. Connect the charge hose from the manifold gauge to the vacuum pump.

4. Open the low-pressure valve of the manifold gauge and close the high-pressure

valve.

5. Turn on the vacuum pump to vacuum the system

6. The vacuum time should not be less than 15 minutes or make sure the compound

gauge reads -0.1 MPa (-76 cmHg)

7. Close the low-pressure valve of the manifold gauge and turn off the vacuum.

8. Hold the pressure for 5 minutes, make sure that the rebound on the compound

gauge pointer does not exceed 0.005 MPa.

9. Open the low-pressure valve counter clockwise 1/4 turn with a hexagonal wrench

to let a little refrigerant fill in the system and close the low-pressure valve after 5

seconds and quickly remove the pressure hose.

10. Check all indoor and outdoor joints for leakage with soapy water or using a leak

detector.

11. Fully open the low-pressure valve and high-pressure valve of the outdoor unit with

a hexagonal wrench.

12. Reinstall the protective caps of the service port, low pressure valve and high-

pressure valve of the outdoor unit.

13. Reinstall the valve cover.

Vacuum pump

Compound

gauge

Low pressure valve

Service port

High pressure valve

Valve protective caps

Pressure hose

Charge hose

Low pressure valve

High pressure valve

Pressure gauge

Manifold gauge

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