Daikin RWEYQ8T9Y1B Installation And Operation Manual

Also see for RWEYQ10T9Y1B: Installer and user guide Installer and user reference guide Installation and operation manual

Contents

5 InstallationInstallation and operation manual21RWEYQ8~14T9V1B+RWEYQ8~14T9Y1BVRV IV water-cooled system air conditioner4P452190-1A – 2017.04A1PF1 F1F2 F2 Q1 Q2TO IN/D UNIT TO OUT/D UNIT TO MULTI UNITAAFix to the indicated plastic brackets (factory installed).5.8.3 To connect the transmission wiringThe wiring from the indoor units must be connected to the F1/F2(In‑Out) terminals on the PCB in the outdoor unit.Tightening torque for the transmission wiring terminal screws:Screw size Tightening torque (N•m)M3.5 (A1P) 0.8~0.96In case of heat recovery modeF1 F2 F1 F2 Q1 Q2F1 F1F2 F2 Q1Q2geTO IN/D UNIT TO OUT/D UNIT TO MULTI UNITA1PQ1 Q2A1PQ1 Q2A1Pa b cd fF1 F2 F1 F2 F1 F2 F1 F2TO IN/DUNIT TO OUT/DUNIT TO IN/DUNIT TO OUT/DUNITF1 F2 F1 F2 F1 F2 F1 F2F1 F2 F1 F2jiihhea Unit A (master outdoor unit)b Unit B (slave outdoor unit)c Unit C (slave outdoor unit)d Outdoor unit PCB (A1P)e Master/slave transmission (Q1/Q2)f Outdoor/indoor transmission (F1/F2)g Outdoor unit/other system transmission (F1/F2)h BS uniti Indoor unitj Cooling-only VRV indoor unit / Heating-only Hydrobox unitIn case of heat pump modeF1 F1F2 F2 Q1 Q2TO IN/D UNIT TO OUT/D UNIT TO MULTI UNITF1 F2 F1 F2 F1 F2F1 F2 F1 F2 F1 F2F1 F2 F1 F2 Q1 Q2 Q1 Q2A1PeQ1 Q2ahigfcb de fa Outdoor unit PCB (A1P)b Unit A (master outdoor unit)c Unit B (slave outdoor unit)d Unit C (slave outdoor unit)e Outdoor unit/other system transmission (F1/F2)f Outdoor-outdoor unit transmission (Q1/Q2)g Indoor unith Use the conductor of sheathed wire (2 wire) (no polarity)i Terminal board (field supply)▪ The interconnecting wiring between the outdoor units in the samepiping system must be connected to the Q1/Q2 (Out Multi)terminals. Connecting the wires to the F1/F2 terminals results insystem malfunction.▪ The wiring for the other systems must be connected to the F1/F2(Out-Out) terminals of the PCB in the outdoor unit to which theinterconnecting wiring for the indoor units is connected.▪ The base unit is the outdoor unit to which the interconnectingwiring for the indoor units is connected.5.8.4 To finish the transmission wiringAfter installing the transmission wires inside the unit, wrap themalong with the on-site refrigerant pipes using finishing tape, asshown in figure below.bafcdfefa Liquid pipeb Gas pipec Finishing taped High pressure/low pressure gas pipee Transmission wiring (F1/F2)f Insulator5.8.5 To route and fix the power supplyNOTICEWhen routing earth wires, secure clearance of 25 mm ormore away from compressor lead wires. Failure to observethis instruction properly may adversely affect correctoperation of other units connected to the same earth.The power supply wiring can be routed from the front side. Exit thewiring via the upper mounting hole.