Daikin RXYQQ8T7Y1B Installation And Operation Manual

Contents

RXYQQ8~20T7Y1BVRV IV System Air Conditioner4P345099-1 – 2013.04Installation and operation manual2712.7. ConnectionThis chapter gives an explanation how to route and connect thewiring within the unit.12.7.1. Connection of transmission wiring to the systemIn case of single outdoor unit installation1 Outdoor unit PCB board (A1P)2 Use the conductor of sheathed wire (2 wire) (no polarity)3 Terminal board (field supply)4 Indoor unit5 Outdoor unitIn case of multi outdoor unit installation1 Unit A (master unit)2 Unit B (slave unit)3 Unit C (slave unit)4 Inter unit transmission wiring (Q1/Q2)5 Outdoor-indoor unit transmission (F1/F2)6 Outdoor-other system transmission (F1/F2) The interconnecting wiring between the outdoor units in thesame piping system must be connected to the Q1/Q2 (Out Multi)(4) terminals. Connecting the wires to the F1/F2 terminalsresults in system malfunction. The wiring for the other systems must be connected to the F1/F2(Out-Out) (6) terminals of the PCB board in the outdoor unit towhich the interconnecting wiring for the indoor units isconnected. The base unit is the outdoor unit to which the interconnectingwiring for the indoor units is connected.12.7.2. Connection of wiring to terminalsTransmission wiring in outdoor unit1 Fix to the indicated plastic brackets using field suppliedclamping material2 Wiring between the units (indoor-outdoor) (F1/F2 left)3 Internal transmission wiring (Q1/Q2)4 Plastic bracket5 Field supplied clampsCare should be taken for connecting the wires to the terminal block.See the table below for the tightening torque of the transmissionwiring terminals. Never connect the power supply to transmission wiring terminalblock. Otherwise the entire system may break down. Be careful about polarity of the transmission wiring.Power supplyThe power supply must be clamped to the plastic bracket using fieldsupplied clamp material.The green and yellow striped wire must be used for earthing only(refer to the figure below).1 Power supply (380~415 V - 3N~ 50Hz)2 Fuse3 Earth leakage protector4 Earth wire5 Power supply terminal block6 Connect each power wire: RED to L1, WHT to L2, BLK toL3 and BLU to NF1 F2 F1 F2 Q1 Q2F1 F1F2 F2 Q1 Q2F1 F2 F1 F2 F1 F2F1 F2 F1 F2 F1 F2231 45TO IN/D UNIT TO OUT/D UNIT TO MULTI UNITA1PF1 F2 F1 F2 Q1 Q2 Q1 Q2A1P4 45 621 3Q1 Q2Screw size Tightening torque (N•m)M3.5 (A1P) 0.80~0.96L1 L2 L3 N1454555442 3 2 31 23 46751011891 23 4675101189RXYQQ14~20RXYQQ8~12