Daikin RZQG71L9V1B Installer's Reference Manual

Also see for RZQG100L8Y1B: Service manual Installation manual Installation manual

Contents

Daikin RZQG71L9V1B Installer's Reference Manual Manual pdf 20 page image

6 InstallationInstaller reference guide20RZQG71~140L_V1+Y1 + RZQSG100~140L_V1+Y1Split system air conditioners4P385522-1A – 2016.10Triple(a)L2L3L4H1H2L1 Double twin(a)H1H2L1L2L3L4L5L6L7(a) Assume that the longest line in the illustration correspondswith the actual longest pipe, and the highest unit in theillustration corresponds with the actual highest unit.L1 Main pipingL2~L7 Branch pipingH1 Height difference between the highest indoor unit and theoutdoor unitH2 Height difference between the highest and the lowestindoor unitRefrigerant branch kit6.6.4 To determine the additional refrigerantamountTo determine if adding additional refrigerant is necessaryIf Then(L1+L2+L3+L4+L5+L6+L7)≤chargeless lengthChargeless length=▪ 10 m (size‑down)▪ 30 m (standard)▪ 15 m (size‑up)You 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)L1 (m)L1 (standard): 30~40 m 40~50 m 50~60 m(a) 60~75 m(a)L1 (size-up): 15~20 m 20~25 m 25~30 m(a) 30~35 m(a)R: 0.5 kg 1.0 kg 1.5 kg 2.0 kg(a) Only for RZQG100~140.To 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).If ThenG1≤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 15 m.In case of standard liquid pipe size:Length0~10 m 10~20 m 20~30 m(a) 30~45 m(a)R1: 0.5 kg 1.0 kg 1.5 kg 2.0 kgR2: 0.3 kg 0.6 kg 0.9 kg 1.2 kgIn case of size‑up liquid pipe size:Length0~5 m 5~10 m 10~15 m(a) 15~20 m(a)R1, R2: 0.5 kg 1.0 kg 1.5 kg 2.0 kg(a) Only for RZQG100~140.3 Determine the additional refrigerant amount: R=R1+R2.ExamplesLayout Additional refrigerant amount (R)L2=7 m(Ø6.4 mm)L3=5 m(Ø6.4 mm)L1=35 m (Ø9.5 mm)RZQG100Case: Twin, standard liquid pipe size1 G1 Total Ø9.5 => G1=35 mG2 Total Ø6.4 => G2=7+5=12 m2 Case: G1>30 mR1 Length=G1−30 m=5 m=> R1=0.5 kgR2 Length=G2=12 m=> R2=0.6 kg3 R R=R1+R2=0.5+0.6=1.1 kgL2=20 m(Ø6.4 mm)L3=17 m(Ø6.4 mm)L4=17 m(Ø6.4 mm)L1=5 m (Ø9.5 mm)RZQG125Case: Triple, standard liquid pipe size1 G1 Total Ø9.5 => G1=5 mG2 Total Ø6.4 => G2=20+17+17=54 m2 Case: G1≤30 m (and G1+G2>30 m)R1 R1=0.0 kgR2 Length=G1+G2−30 m=5+54−30=29m=> R2=0.9 kg3 R R=R1+R2=0.0+0.9=0.9 kg6.6.5 To determine the complete rechargeamountFor RZQG only: When piping length is <5 m, a complete recharge ofthe unit is required.To determine the complete recharge amount (kg) (in case ofstandard liquid pipe size)Model Length (m)(a)5~10(b) 10~20 20~30 30~40 40~50 50~60 60~75RZQG71 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 1.9 2.4 2.9 3.4 3.9 — —RZQSG140 3.0 3.5 4.0 4.5 5.0 — —(a) Length = L1 (pair); L1+L2 (twin, triple); L1+L2+L4 (doubletwin)(b) For RZQG: 3~10 m