6 InstallationInstaller reference guide21RZQG71~140L_V1+Y1 + RZQSG100~140L_V1+Y1Split system air conditioners4P385522-1A – 2016.10To determine the complete recharge amount (kg) (in case ofsize‑up liquid pipe size)Model Length (m)(a)3~5 5~10 10~15 15~20 20~25 25~30 30~35RZQG71 1.9 2.4 2.9 3.4 3.9 — —RZQG100~140 3.0 3.5 4.0 4.5 5.0 5.5 6.0RZQSG100+125 — 2.4 2.9 3.4 3.9 — —RZQSG140 — 3.5 4.0 4.5 5.0 — —(a) Length = L1 (pair); L1+L2 (twin, triple); L1+L2+L4 (doubletwin)To determine the complete recharge amount (kg) (in case ofsize‑down liquid pipe size)Model Length (m)(a)3~5 5~10RZQG71 1.9 1.9RZQG100~140 3.0 3.0RZQSG100+125 — 1.9RZQSG140 — 3.0(a) Length = L1 (pair); L1+L2 (twin, triple); L1+L2+L4 (doubletwin)6.6.6 Charging refrigerant: SetupSee "6.5.3 Checking refrigerant piping: Setup" on page 18.6.6.7 To charge refrigerantWARNING▪ Only use R410A as refrigerant. Other substances maycause explosions and accidents.▪ R410A contains fluorinated greenhouse gases. Itsglobal warming potential (GWP) value is 2087.5. DoNOT vent these gases into the atmosphere.▪ When charging refrigerant, always use protectivegloves and safety glasses.CAUTIONTo avoid compressor breakdown, do NOT charge morethan the specified amount of refrigerant.Prerequisite: Before charging refrigerant, make sure the refrigerantpiping is connected and checked (leak test and vacuum drying).1 Connect the refrigerant cylinder to both the service port of thegas stop valve and the service port of the liquid stop valve.2 Charge the additional refrigerant amount.3 Open the stop valves.If pump down is needed in case of dismantling or relocating thesystem, see "11.3 To pump down" on page 27 for more details.6.6.8 To fix the fluorinated greenhouse gaseslabel1 Fill in the label as follows:bContains fluorinated greenhouse gases21 1122 kgtCO2 eqGWP × kg1000==+kg=kg=GWP: XXXRXXXaf cdea If a multilingual fluorinated greenhouse gases label isdelivered with the unit (see accessories), peel off theapplicable language and stick it on top of a.b Factory refrigerant charge: see unit name platec Additional refrigerant amount chargedd Total refrigerant chargee Greenhouse gas emissions of the total refrigerant chargeexpressed as tonnes CO2-equivalentf GWP = Global warming potentialNOTICEIn Europe, the greenhouse gas emissions of the totalrefrigerant charge in the system (expressed as tonnesCO2-equivalent) is used to determine the maintenanceintervals. Follow the applicable legislation.Formula to calculate the greenhouse gas emissions:GWP value of the refrigerant × Total refrigerant charge [inkg] / 10002 Fix the label on the inside of the outdoor unit. There is adedicated place for it on the wiring diagram label.6.7 Connecting the electrical wiring6.7.1 About connecting the electrical wiringTypical workflowConnecting the electrical wiring typically consists of the followingstages:1 Making sure the power supply system complies with theelectrical specifications of the units.2 Connecting the electrical wiring to the outdoor unit.3 Connecting the electrical wiring to the indoor units.4 Connecting the main power supply.6.7.2 About electrical complianceRZQ(S)G_V1 + RZQSG100+125_Y1Equipment complying with EN/IEC 61000‑3‑12 (European/International Technical Standard setting the limits for harmoniccurrents produced by equipment connected to public low-voltagesystems with input current >16 A and ≤75 A per phase.).RZQG100~140_Y1 + RZQSG140_Y1Equipment complying with:▪ EN/IEC 61000‑3‑12 provided that the short-circuit power Ssc isgreater than or equal to the minimum Ssc value at the interfacepoint between the user's supply and the public system.▪ EN/IEC 61000‑3‑12 = European/International TechnicalStandard setting the limits for harmonic currents produced byequipment connected to public low-voltage systems with inputcurrent >16 A and ≤75 A per phase.▪ It is the responsibility of the installer or user of the equipment toensure, by consultation with the distribution network operator ifnecessary, that the equipment is connected only to a supplywith a short-circuit power Ssc greater than or equal to theminimum Ssc value.Model Minimum Ssc valueRZQG100~140_Y1 + RZQSG140_Y1 1170 kVA(a)(a) This is the most stringent value. For specific product data,see the databooks.