Daikin FXSQ15A2VEB Installation And Operation Manual

Also see for FXSQ100A2VEB: Installation and operation manual

Contents

7Specifications for field supplied fuses and wireAllowable length of transmission wiring between indoor and outdoorunits, and between the indoor unit and the remote controller is asfollows:1. Outdoor unit - indoor unit: max. 1000 m (total wiring length:2000 m)2. Indoor unit - remote controller: max 500 mWiring example and how to set the remotecontrollerHow to connect wiringRemove the switch box cover as shown in figure 12, 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.Keep total current of crossover wiring between indoor units less than12 A. Branch the line outside the terminal block of the unit inaccordance with the electrical equipment standards, when using twopower wiring of a gauge greater than 2 mm 2 (Ø1.6).The branch must be sheathed in order to provide an equal or greaterdegree of insulation as power supply wiring itself.Wiring exampleFit the power supply wiring of each unit with a switch and fuse asshown in figure 16.Complete system example (3 systems)When using 1 remote controller for 1 indoor unit (Normal operation)(See figure 15)For group control or use with 2 remote controllers (See figure 17)When including BS unit (See figure 13)Power supply wiringModel Field fuses Wire Size15~140 16 A H05VV-U3G Local codesModel Wire Size15~140 Sheathed wire (2) 0.75-1.25 mm2NOTE For details, refer to "Wiring example" on page 7.1 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 remote controller 0.79~0.97Terminal block for power supply 1.18~1.441 2 31 Round crimp-style terminal2 Attach insulation sleeve3 WiringNOTE The customer has the ability to select the remotecontroller thermistor.1 Power supply2 Main switch3 Power supply wiring4 Transmission wiring5 Switch6 Fuse7 BS unit REYQ only8 Indoor unit9 Remote controller1 Outdoor unit2 Indoor unit3 Remote controller (optional accessories)4 Most downstream indoor unit5 For use with 2 remote controllers6 BS unitNOTE It is not necessary to designate an indoor unit addresswhen using group control. The address isautomatically set when the power is activated.