Daikin FMCQ50A7VEB Installation And Operation Manual

Also see for FMCQ100A7VEB: Service manual Installation and operation manual

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Daikin FMCQ50A7VEB Installation And Operation Manual Manual pdf 10 page image

Installation and operation manual7 FMCQ50~125A7VEBAir conditioning system4PW47629-1- When connecting wires of the same gauge, connect themaccording to the figure.Use the specified electric wire. Connect the wire securely to theterminal. Lock the wire down without applying excessive force tothe 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 Keep total current of crossover wiring between indoor units lessthan 12 A. Branch the line outside the terminal block of the unitin accordance with electrical equipment standards, when usingtwo power wiring of a gauge greater than 2 mm 2 (Ø1.6).The branch must be sheathed in order to provide an equal orgreater degree of insulation as power supply wiring itself.3 Do not connect wires of different gauge to the same groundingterminal. Looseness in the connection may deteriorate theprotection.4 Remote controller wiring and unit transmission wiring should belocated at least 50 mm away from power supply wiring. Notfollowing this guideline may result in malfunction due toelectrical noise.5 For the remote controller wiring, refer to the "Installation manualof the remote controller" supplied with the remote controller.6 Never connect the power supply wiring to the terminal block fortransmission wiring. This mistake could damage the entire system.7 Use only specified wires and tightly connect wires to theterminals. Be careful that wires do not place external stress onthe terminals. Keep wiring in neat order so that they do notobstruct other equipment such as popping open the servicecover. Make sure the cover closes tight. Incomplete connectionscould result in overheating, and in the worse case, electric shockor fire.WIRING EXAMPLEFit the power supply wiring of each unit with a switch and fuse asshown in figure 14.Complete system example (2 systems)See figures 13 and 15When using 1 remote controller for 1 indoor unit. (Normaloperation) (See figure 13).For group control or use with 2 remote controllers (See figure 15).Precautions1. A single switch can be used to supply power to units on thesame system. However, branch switches and branch circuitbreakers must be selected carefully.2. For a group control remote controller, choose the remotecontroller that suits the indoor unit which has the most functions.3. Do not ground the equipment on gas pipes, water pipes,lightning rods or crossground with telephones. Impropergrounding could result in electric shock.INSTALLATION OF THE DECORATION PANELRefer to the installation manual delivered with the decoration panel.After installing the decoration panel, ensure that there is no spacebetween the unit body and decoration panel. Otherwise air may leakthrough the gap and cause dewdrop.FIELD SETTINGField setting must be made from the remote controller in accordancewith the installation condition.■ Setting can be made by changing the "Mode number", "Firstcode No." and "Second code No.".■ For setting and operation, refer to the "Field setting" in theinstallation manual of the remote controller.Tightening torque (N•m)Terminal block for unit transmission andremote controller 0.79~0.97Terminal block for power supply 1.18~1.44NOTE The customer has the ability to select the remotecontroller thermistor.1 Power supply2 Main switch3 Power supply wiring4 Unit transmission wiring5 Switch6 Fuse7 Indoor unit8 Remote controller1 Outdoor unit2 Indoor unit3 Remote controller (Optional accessories)4 Most downstream indoor unit5 For use with 2 remote controllersNOTE It is not necessary to designate indoor unit addresswhen using group control. The address is automati-cally set when the power is activated.