Daikin FDQ125C7VEB Installation Manual

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Daikin FDQ125C7VEB Installation Manual Manual pdf 9 page image

FDQ125C7VEBSplit System air conditioners4PW71105-1 – 08.2011Installation manual6ELECTRIC WIRING WORKGeneral instructions■ All field supplied parts and materials and electric works mustconform to local codes.■ Use copper wire only.■ Follow the "Wiring diagram" attached to the unit body to wire theoutdoor unit, indoor units and the remote controller. For detailson hooking up the remote controller, refer to the "Installationmanual of the remote controller".■ All wiring must be performed by an authorized electrician.■ Attach the earth leakage circuit breaker and fuse to the powersupply line.■ A main switch or other means for disconnection, having acontact separation in all poles, must be incorporated in the fixedwiring in accordance with relevant local and national legislation.Note that the operation will restart automatically if the mainpower supply is turned off and then turned back on again.■ Refer to the installation manual delivered with the outdoor unitfor the size of power supply electric wire connected to theoutdoor unit, the capacity of the earth leakage breaker and fuseand for wiring instructions.■ Be sure to ground the air conditioner.■ Do not connect the ground wire to:- gas pipes: might cause explosions or fire if gas leaks.- telephone ground wires or lightning rods: might causeabnormally high electric potential in the ground duringlightning storms.- plumbing pipes: no grounding effect if hard vinyl piping isused.■ Make sure electrical wires are strippedequally.Electrical characteristicsMCA: Min. circuit Amps (A)MFA: Max. Fuse Amps (A)Specifications for field wireWIRING EXAMPLE AND HOW TO SET THEREMOTE CONTROLLERHow to connect wiringRemove the switch box cover as shown in figure 13, and make theconnections.Precautions1. Observe the notes mentioned below when wiring to the powersupply terminal board.• Use a round crimp-style terminal for insulation sleeve forconnection to the terminal block for wiring the units. Whennone are available, follow the instructions below.• Do not connect wires of different gauge to the same powersupply terminal. (Looseness in the connection may causeoverheating.)• When connecting wires of the same gauge, connect themaccording to the figure.Use the specified electric wire. Connect the wire securely tothe terminal. Lock the wire down without applying excessiveforce to the terminal. Use torques according to the table below.• When attaching the control box lid, make sure not to pinchany wires.• After all wiring connections are done, fill in any gaps in thecasing wiring holes with putty or insulation material (fieldsupply) thus to prevent small animals or dirt from entering theunit from outside and causing short circuits in the control box.2. Do not connect wires of different gauge to the same groundingterminal. Looseness in the connection may deteriorate theprotection.3. Remote controller cords and wires connecting the units shouldbe located at least 50 mm away from power supply wiring. Notfollowing this guideline may result in malfunction due toelectrical noise.4. For the remote controller wiring, refer to the "Installation manualof the remote controller" supplied with the remote controller.5. Never connect the power supply wiring to the terminal board fortransmission wiring. This mistake could damage the entiresystem.6. Use only specified wires and tightly connect wires to the terminals.Be careful that wires do not place external stress on the terminals.Keep wiring in neat order so that they do not obstruct otherequipment such as popping open the switch box cover. Make surethe cover closes tight. Incomplete connections could result inoverheating, and in the worse case, electric shock or fire.Hz VoltsVoltagerangePower supplyMCA MFA50/60 220-240/220 ±10% 2.9 16 ANOTE For details, refer to "Electrical data" in the technicaldata book.Wire Size (mm 2) LengthBetweenindoor units H05VV-U4G(a),(b)(a) Shows only in case of protected pipes. Use H07RN-F in case of no protection.(b) Run transmission wiring between the indoor and outdoor units through a conduitto protect against external forces, and feed the conduit through the wall togetherwith refrigerant piping.2.5 —Unit-RemotecontrollerSheathed wire(2 wire)(c)(c) Use double insulation wire for remote controller (sheath thickness: ≥1 mm) or runwires through a wall or conduit so that the user cannot come in contact with them.0.75–1.25 Max. 500 m(d)(d) This length shall be the total extended length in the system of the group control.1 Switch box cover2 Switch box low voltage wiring inlet3 Switch box high voltage wiring inlet4 Wiring diagram5 Switch boxTightening torque (N•m)Terminal block for unit transmission and remote controller 0.9Terminal block for power supply 1.2NOTE The customer has the ability to select the remotecontroller thermistor.1 2 31 Round crimp-style terminal2 Attach insulation sleeve3 Wiring