Panasonic CS-KS30NKU Technical & Service Manual

Contents

Panasonic CS-KS30NKU Technical & Service Manual Manual pdf 50 page image

10-3. Tools Specifically for R410AFor servicing, use the following tools for R410AGauge manifoldCharging hoseGas leak detectorRefrigerant cylinderCharging cylinderRefrigerant recovery unitVacuum pump with anti-reverse flow (*1)(Solenoid valve-installed type, which prevents oil from flowing back into theunit when the power is off, is recommended.)Vacuum pump (*2)...can be used if the following adapter is attached.Vacuum pump adapter (reverse-flow prevention adapter) (*3).(Solenoid valve-installed adapter attached to a conventional vacuum pump.)Electronic scale for charging refrigerantFlare toolBenderTorque wrenchCutter, reamerWelding tool, nitrogen gas cylinderTools specifically for R410ATool Distinction Tool NameTools which can be com-monly used for R22,R407C, and R410ACAUTION The above tools specifically for R410A must not be used for R22 and R407C.Doing so will cause malfunction of the unit.For the above vacuum pump (*1, *2) and vacuum pump adapter (*3), those forR22-type units can be used for R410A-type. However, they must be usedexclusively for R410A and never alternately with R22 and R407C.For details on tubing installation procedures, refer to the installation manuals attached to the indoorunit and outdoor unit.To prevent other refrigerants (R22, R407C) from being mistakenly charged to this unit, shape and externaldiameter of the service port screw has been altered. R410A : 5/16"R22, R407C : 1/4"10-4. Tubing Installation ProceduresWhen the tubes are connected, always apply HAB oil on the flare portions to improve the sealing of tubing.The following is the HAB oil generally used:Esso: ZERICE S32NOTE50