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set to the service port of the 3-way valve.
- Connect the charge hose with the push pin to the Gas side
4. Air purging of the charge hose.
- Open the low-pressure valve on the charge set slightly to
5. Set the Liquid side 3-way valve to the close position.
6. Operate the air conditioner at the cooling cycle and stop it when
the gauge indicates 0 kg/cm
- If the unit cannot be operated at the cool condition (weather
- So that the unit can be operated.
7. Immediately set the gas side 3-way valve to the close position.
- Do this quickly so that the gauge ends up indicating 1 to 3 kg/
8. Use refrigerant reclaiming equipment to collect refrigerant from
indoor unit and pipes.
9. Disconnect the charge set, and mount both the 3-way valve's
stem nuts and the service port caps.
- Use a torque wrench to tighten the service port cap to a
- Be sure to check for gas leakage.
10. Disconnect pipes from indoor unit and outdoor unit.
11.3. Evacuation of Re-installation
WHEN REINSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE
INDOOR UNIT AND PIPES in the following procedure.
If air remain in the indoor unit and refrigeration pipes, it will affect the compressor, reduce to
cooling capacity, and could lead to a malfunction.
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service port.
purge air from the charge hose.
is rather cool), press the Pump Down Switch on the Indoor
unit.
cm
G (0.1 MPa to 0.3 MPa).
2
torque of 18 N.m.
G (0 MPa).
2
50
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