Daikin REYQ8PY1B Installation Manual

Also see for VRV III REYQ10PY1B: Operation manual Service manual

Contents

Daikin REYQ8PY1B Installation Manual Manual pdf 10 page image

English 44. The refrigerant R410A itself is nontoxic, nonflammable and issafe. If the refrigerant should leak however, its concentrationmay exceed the allowable limit depending on room size. Due tothis it could be necessary to take measures against leakage.See “14. CAUTION FOR REFRIGERANT LEAKS” for details.4. INSPECTING AND HANDLING THE UNIT• At delivery, the package should be checked and any damageshould be reported immediately to the carrier claims agent.• When handling the unit, take into account the following:1. Fragile, handle the unit with care.Keep the unit upright in order to avoid compressor damage.2. Decide on the transportation route.3. If a forklift is to be used, insert the arms into the lower side.(Refer to figure 4)4. If hanging the unit, use a cloth sling to prevent damaging the unit.Keeping the following points in mind, hang the unit following theprocedure shown in figure 5.• Use a sling sufficiently strong to hold the mass of the unit.• Use 2 belts of at least 8m long.• Place extra cloth or boards in the locations where the casingcomes in contact with the sling to prevent damage.• Hoist the unit making sure it is being lifted at its center of gravity.(Refer to figure 4)1. Fork(Refer to figure 5)1. Belt sling2. Filler cloth or Board3. Hole (small)Note• Apply a filler cloth on a fork to prevent coating of the bottom framefrom coming off and rust from occurring when bringing the unitusing a forklift.• Insert the arms even the tip of arms come out fully from oppositeside.5. PLACING THE UNIT• Make sure the unit is installed level on a sufficiently strong base toprevent vibration and noise. (Refer to figure 6)• The base should support the unit with the extent larger thanhatched area in figure 7.If protective rubber is to be attached, attach it to the whole face ofthe base.• The height of the base should be at least 150mm from the floor.• Secure the unit to its base using foundation bolts. (Use four com-mercially available M12-type foundation bolts, nuts, and washers.)• The foundation bolts should be inserted 20 mm.(Refer to figure 6)1. Independent base (four corner type)2. Independent base (with center support type)3. Beam base (Horizontal)4. Beam base (Vertical)5. Center of the product(Refer to figure 7)1. 4-15×22.5 (Hole for foundation bolt)2. (Depth of product)3. (Inner dimension of the base)4. (Outer dimension of the base)Note• When installing central drain pan kit (optional accessory), con-struct the bace by independent base (with center support type) orbeam base (Horizontal) in figure 6.• There are restrictions on the refrigerant pipe connecting orderbetween outdoor unit in the case of the multi system.See “2-1 Combination” for detail.• When installing on a roof, make sure the roof floor is strongenough and be sure to water-proof all work.• Make sure the area around the machine drains properly by settingup drainage grooves around the foundation.Drain water is sometimes discharged from the outdoor unit whenit is running.• For anti-corrosion type, use nuts with resin washers. If the paint onnut connections comes off, the anti-corrosion effect may decrease.6. REFRIGERANT PIPINGNote• All field piping must be installed by a licensed refrigeration techni-cian and must comply with relevant local and national regulations.• After piping work is complete, do not under any circumstances openthe shutoff valve until “7. FIELD WIRING” and “10. CHECKING OFDEVICE AND INSTALLATION CONDITIONS” are complete.• Do not use flux when brazing the refrigerant piping. Use the phos-phor copper brazing filler metal (BCuP-2 : JIS Z 3264, B-Cu93P-710/795 : ISO 3677) which does not require flux.(Flux has extremely harmful influence on refrigerant piping sys-tems. For instance, if the chlorine based flux is used, it will causepipe corrosion or, in particular, if the flux contains fluorine, it willdamage the refrigerant oil.)6-1 Selection of piping material and Refrigerantbranching kit• Use only pipes which are clean inside and outside and which donot accumulate harmful sulfur, oxidants, dirt, cutting oils, mois-ture, or other contamination. (Foreign materials inside pipesincluding oils for fabrication must be 30mg/10m or less.)• Use the following items for the refrigerant piping.Material : Jointless phosphor-deoxidized copper pipeSize : See “6-5 Example of connection” to determine the cor-rect size.Thickness : Select a thickness for the refrigerant piping whichcomplies with national and local laws.For R410A, the design pressure is 4.0 MPa (40-bar).The minimum thickness of piping according to Japan’s High-Pressure Gas Safety Law (as of January 2003) is shown below.Temper grade (O type, 1/2H type) in the table indicate thematerial types specified in JIS H 3300.(unit : mm)(unit : mm)• For piping work, follow the maximum tolerated length, differencein height, and length after a branch indicated in the “6-5 Exampleof connection”.• Outdoor unit multi connection piping kit and refrigerant branchingkit (sold separately) are needed for connection of piping betweenoutdoor units (in case of multi system) and piping branches.Use only separately sold items selected specifically according tothe outdoor unit multi connection piping kit, the refrigerant branch-ing kit selection in the “6-5 Example of connection”.6-2 Protection against contaminationwhen installing pipesProtect the piping to prevent moisture, dirt, dust, etc. fromentering the piping.NoteExercise special caution to prevent dirt or dust when passing pipingthrough holes in walls and when passing pipe edges to the exterior.20Temper grade O typeouter diameter φ6.4 φ9.5 φ12.7 φ15.9smallest thickness 0.80 0.80 0.80 0.99Temper grade 1/2H typeouter diameter φ19.1 φ22.2 φ25.4 φ28.6 φ31.8 φ34.9 φ38.1 φ41.3smallest thickness 0.80 0.80 0.88 0.99 1.10 1.21 1.32 1.43Place Installation period Protection methodOutdoor More than a month Pinch the pipeLess than a month Pinch or tape the pipeIndoor Regardless of the periodResin washers