Daikin VKM50GMV1 Installation Manual

Contents

Daikin VKM50GMV1 Installation Manual Manual pdf 10 page image

8 English• Use the duct applicable to the model of unit used (Refer tothe installation drawing.)• Install the two outdoor ducts with down slope (slope of 1/30or more) to prevent entry of rain water. Also, provide insula-tion for three ducts (Outdoor ducts and Indoor supply airduct) to prevent dew condensation.(Material : Glass wool of 25 mm thick) (Refer to Fig. 16)• If the level of temperature and humidity inside the ceilingis always high, install a ventilation equipment inside theceiling.• Insulate the duct and the wall electrically when a metal ductis to be penetrated through the metal lattice and wire latticeor metal lining of a wooden structure wall.• Using flexible or silent ducts can be effective in reducing theair discharge sound of the supply air to room (SA). Selectmaterials keeping in mind the fan strength and operatingsound of the unit. Consult your Daikin dealer for selection.• Set the pitch between the exhaust air outlet (EA) and the out-side air intake (OA) to 3 times the duct diameter.• Do not use a bent cap or a round hood as the outdoor hoodif they might get rained on directly. (We recommend using adeep hood (optional accessory).)• When using a deep hood, make sure the duct from the deephood (outer wall) to the unit is at least 1m long.• The change of air discharge grill's location should be exam-ined when the cold draft from air discharge grill is feared.The fan is driving while defrost operation, and the cold air isoften blowing.• When connecting the indoor unit directly to the duct, alwaysuse the same system on the indoor unit as with the outdoorunit, perform group-linked operation, and make the directduct connection settings from the remote controller (ModeNo. “17 (27)” – FIRST CODE NO. “5” – SECOND CODE NO.“06”) Also, do not connect to the outlet side of the indoor unit.Depending on the fan strength and static pressure, the unitmight back up.9 ELECTRIC WIRING WORK• Shut off the power before doing any work.• All field supplied parts and materials, electric works mustconform to local codes.• Use copper wire only.• All wiring must be performed by an authorized electrician.• See also the “Electrical Wiring Diagram label” attached to theelectric parts box lid when laying electrical wiring.• Wire the outdoor unit and remote controller as shown in theelectric wiring diagram label. See the “Remote ControllerInstallation Manual” for details on how to install and lay thewiring for the remote controller.• This system consists of multiple indoor units. Mark eachindoor unit as unit A, unit B..., and be sure the terminal boardwiring to the outdoor unit and BS unit are properly matched.If wiring and piping between the outdoor unit and an indoorunit are mismatched, the system may cause a malfunction.• Install a wiring interrupter or ground-fault circuit interrupterfor the power wiring.• Make sure the ground resistance is no greater than 100Ω .This value can be as high as 500Ω when using a ground faultcircuit interrupter since the protective ground resistance canbe applied.• Do not let the ground wire should come in contact with gaspipes, water pipes, lighting rods, or telephone ground wires.• Gas pipes: gas leaks can cause explosions and fire.• Water pipes: cannot be grounded if hard vinyl pipes are used.• Telephone ground and lightning rods: the ground poten-tial when struck by lightning gets extremely high.• Do not turn on the power supply (switch, wiring interrupter orground fault circuit interrupter) until all other works are done.SPECIFICATIONS FOR FIELD SUPPLIED FUSESAND WIRENOTE• If the wiring is in a place where people it can be easilytouched by people, install a leak interrupter to preventelectric shock.• When using a ground-fault circuit interrupter, make sureto select one useful also to protection against overcurrentand short-circuit.If you use a leak interrupter which is designed for protect-ing again ground faults, be sure to combine it with a wir-ing interrupter or an load switch that has a fuse.• The length of the transmission wiring and remote control-ler wiring are as follows.ELECTRICAL CHARACTERISTICSMCA: Min. Circuit Amps (A); MFA: Max. Fuse Amps (A)kW: Fan Motor Rated Output (kW); FLA: Full Load Amps (A)Fig. 16Aluminum tape(Locally procured)Aluminum tape(Locally procured)Insulation material(Locally procured)Slope:Over 1/30Outdoor ductMake sure thereis no slack in the duct.Duct connectingflangeModelPower supply wiring Remote controller wiringTransmission wiringFieldfuses Wire Size Wire SizeVKM50GMV1,VKM50GV115A H05VV-U3GFollowlocalstandardsSheathedwire(2 wire)0.75-1.25mm2VKM80GMV1,VKM80GV1VKM100GMV1,VKM100GV1Length of outdoor-indoor transmissionwiring … max 1000m (total wiring length 2000m)Length of remote controller wiring between indoorunit and remote controller … max 500mUnits Power supply Fan motorModel Hz Volts Voltagerange MCA MFA kW FLAVKM50GMV1,VKM50GV150 220-240VMax.264VMin.198V4.3 15 0.28×2 1.9×2VKM80GMV1,VKM80GV1 4.3 15 0.28×2 1.9×2VKM50GMV1,VKM50GV1 4.3 15 0.28×2 1.9×2