Daikin Sky Air Advance Series Installation Manual

Also see for Sky Air Advance RZA200D7Y1B: Installer's reference guide Service manual

Contents

Daikin Sky Air Advance Series Installation Manual Manual pdf 11 page image

4 InstallationInstallation manual11RZA200+250D7Y1BSky Air Advance-series4P573384-1 – 2019.04H2 Height difference between the highest and the lowestindoor unitRefrigerant branch kit4.4.5 Charging additional refrigerantTo determine the additional refrigerant amountTo determine if adding additional refrigerant is necessaryChargeless lengthØ standard 30 mØ size-up of gas piping 30 mØ size-up of liquid piping 20 mIf Then(L1+L2+L3+L4+L5+L6+L7)≤chargeless lengthYou do not have to addadditional refrigerant.(L1+L2+L3+L4+L5+L6+L7)>chargeless lengthYou must add additionalrefrigerant.For future servicing, encircle theselected amount in the tablesbelow.INFORMATIONPiping length is the largest one-way length of liquid piping.To determine the additional refrigerant amount (R in kg) (incase of pair)Standard piping size:Standard piping sizeL1 (m)L1: 30~40 40~50 50~60 60~70 70~80 80~90 90~100R: 0.45 0.9 1.35 1.8 2.25 2.7 3.15Size-up piping size:Size-up piping sizeL1 (m)L1: 20~25 25~30 30~35 35~40 40~45 40~45R: 0.35 0.7 1.05 1.4 1.75 2.1To determine the additional refrigerant amount (R in kg) (incase of twin, triple and double twin)1 Determine G1 and G2.G1 (m) Total length of liquid pipingx=Ø9.5 mm (standard)x=Ø12.7 mm (size‑up)G2 (m) Total length of Ø6.4 mm liquid piping2 Determine R1 and R2.If ThenG1>30 m(a) Use the table below to determineR1 (length=G1−30 m)(a) and R2(length=G2).G1≤30 m(a)(and G1+G2>30 m)(a)R1=0.0 kg.Use the table below to determineR2 (length=G1+G2−30 m)(a).(a) In case of size‑up: replace 30 m by 20 m.Standard liquid pipe sizeLength (m)0~10 10~20 20~30 30~40 40~50 50~60 60~70R1: 0.45 0.9 1.35 1.8 2.25 2.7 3.15Standard liquid pipe sizeLength (m)0~10 10~20 20~30 30~40 40~50 50~60 60~70R2: 0.2 0.4 0.6 0.8 1 1.2 1.4Size‑up liquid pipe sizeLength (m)0~5 5~10 10~15 15~20 20~25 25~30R1: 0.35 0.7 1.05 1.1 1.75 2.1R2: 0.18 0.35 0.53 0.7 0.88 1.053 Determine the additional refrigerant amount: R=R1+R2.ExamplesLayout Additional refrigerant amount (R)L2=7 m(Ø9.5 mm)L3=5 m(Ø9.5 mm)L1=35 m (Ø9.5 mm)RZA200Case: Twin, standard liquid pipe size1 G1 Total Ø9.5 => G1=35+7+5=47 mG2 Total Ø6.4 => G2=0 m2 Case: G1>30 mR1 Length=G1–30 m=47–30 m=17 m=> R1=0.9 kgR2 Length=G2=0 m=> R2=0 kg3 R R=R1+R2=0.9+0=0.9 kgL2=17 m(Ø6.4 mm)L3=17 m(Ø6.4 mm)L4=10 m(Ø6.4 mm)L1=5 m (Ø9.5 mm)RZA200Case: Triple, standard liquid pipe size1 G1 Total Ø9.5 => G1=5 mG2 Total Ø6.4 => G2=10+17+17=44 m2 Case: G1≤30 m (and G1+G2>30 m)R1 R1=0.0 kgR2 Length=G1+G2–30=5+44–30=19 m=> R2=0.4 kg3 R R=R1+R2=0.0+0.4=0.4 kgCharging refrigerant: SetupSee "4.3.1 Checking refrigerant piping: Setup" [49].To charge additional refrigerantWARNING▪ Only use R32 as refrigerant. Other substances maycause explosions and accidents.▪ R32 contains fluorinated greenhouse gases. Its globalwarming potential (GWP) value is 675. Do NOT ventthese gases into the atmosphere.▪ When charging refrigerant, ALWAYS use protectivegloves and safety glasses.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.4.4.6 Completely recharging refrigerantTo determine the complete recharge amountFor the complete charging amount refer to the additional refrigerantcharge sticker mounted on the unit.