Daikin Siesta Installation Instructions Manual

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Daikin Siesta Installation Instructions Manual Manual pdf 6 page image

3 InstallationInstallation manual6AZQS100~140B8V1B + AZQS100~140B7Y1BSplit system air conditioners4P3855281 – 2014.083.2.2 To determine if oil traps are requiredIf oil flows back into the outdoor unit's compressor, this might causeliquid compression or deterioration of oil return. Oil traps in the risinggas piping can prevent this.If ThenThe indoor unit is installedhigher than the outdoorunitInstall an oil trap every 10 m (heightdifference).ab10 ma Rising gas piping with oil trapb Liquid pipingThe outdoor unit isinstalled higher than theindoor unitOil traps are NOT required.3.3 Checking the refrigerant piping3.3.1 Checking refrigerant piping: Setupacfb d eR410Aa Pressure gaugeb Nitrogenc Refrigerantd Weighing machinee Vacuum pumpf Stop valve3.3.2 To check for leaksNOTICEDo NOT exceed the unit's maximum working pressure (see"PS High" on the unit name plate).NOTICEMake sure to use a recommended bubble test solutionfrom your wholesaler. Do not use soap water, which maycause cracking of flare nuts (soap water may contain salt,which absorbs moisture that will freeze when the pipinggets cold), and/or lead to corrosion of flared joints (soapwater may contain ammonia which causes a corrosiveeffect between the brass flare nut and the copper flare.1 Charge the system with nitrogen gas up to a gauge pressure ofat least 200 kPa (2 bar). It is recommended to pressurize to3000 kPa (30 bar) in order to detect small leaks.2 Check for leaks by applying the bubble test solution to allconnections.3 Discharge all nitrogen gas.3.3.3 To perform vacuum drying1 Vacuum the system until the pressure on the manifold indicates−0.1 MPa (−1 bar).2 Leave as is for 45 minutes and check the pressure:If the pressure… Then…Does not change There is no moisture in thesystem. This procedure isfinished.Increases There is moisture in thesystem. Go to the next step.3 Evacuate for at least 2 hours to a pressure on the manifold of−0.1 MPa (−1 bar).4 After turning OFF the pump, check the pressure for at least1 hour.5 If you do NOT reach the target vacuum or cannot maintain thevacuum for 1 hour, do the following:▪ Check for leaks again.▪ Perform vacuum drying again.NOTICEMake sure to open the stop valves after installing therefrigerant piping and performing vacuum drying. Runningthe system with the stop valves closed may break thecompressor.3.4 Charging refrigerant3.4.1 To determine the additional refrigerantamountTo determine if adding additional refrigerant is necessaryIf ThenL1≤30 m (chargeless length) You do not have to addadditional refrigerant.L1>30 m You must add additionalrefrigerant.For future servicing, encircle theselected amount in the tablesbelow.INFORMATIONPiping length is the one way length of liquid piping.To determine the additional refrigerant amount (R in kg)L1 (m)30~40 m 40~50 mR: 0.5 kg 1.0 kg3.4.2 To determine the complete rechargeamountModelL1 (m)5~10 10~20 20~30 30~40 40~50AZQS100+125 1.9 2.4 2.9 3.4 3.9AZQS140 3.0 3.5 4.0 4.5 5.0