Panasonic Air Conditioner
Panasonic Air Conditioner
Panasonic Air Conditioner
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Precaution:<br />
Be sure to set up the cylinder for liquid charging. If you use a cylinder equipped with a siphon tube, you can charge the liquid<br />
without having to turn the cylinder around<br />
6. Remove the charging hose of the manifold gauge from the vacuum pump adaptor, and connect it to the connection port of the<br />
electronic scale. (2)(3)<br />
7. Open the valve of the refrigerant cylinder, then open the charging valve slightly and close it. Next, press the check valve of the<br />
manifold gauge and purge the air. (2)(4) (Watch the liquid refrigerant closely at this point.)<br />
8. After adjusting the electronic scale to zero, open the charging valve, then open the valve Lo of the manifold gauge and charge<br />
with the liquid refrigerant. (2)(5) (Be sure to read the operating instructions for the electronic scale.)<br />
9. If you cannot charge the stipulated amount, operate the unit in the cooling mode while charging a little of the liquid at a time<br />
(about 150 g/time as a guideline). If the charging amount is insufficient from one operation, wait about one minute, then use<br />
the same procedure to do the liquid charging again.<br />
Precaution:<br />
Never use the gas side to allow a larger amount of liquid refrigerant to be charged while operating the unit.<br />
10. Close the charging valve, and after charging the liquid refrigerant inside the charging hose, fully close the valve Lo of the manifold<br />
gauge, and stop the operation of the unit. (2)(5)<br />
11. Quickly remove the charging hose from the service port. (6) If you stop midway through, the refrigerant that is in the cycle will<br />
be discharged.<br />
12. After putting on the caps for the service port and operating valve, inspect around the caps for a gas leak. (6)(7)<br />
Fig. 13 Re-charging refrigerant<br />
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