Daikin VRV IV Q+ Series Installer And User Reference Manual

Also see for RXYQQ10U7Y1B: Installation and operation manual

26 | Technical dataInstaller and user reference guide157RXYQQ8~20U7Y1BVRV IV Q+ series heat pump4P546229-1A – 2020.10a Compressor (M1C)b Compressor (M2C)c Heat exchangerd Fane Fan motor (M1F, M2F)f Accumulatorg Expansion valve, main (Y1E)h Expansion valve, subcool heat exchanger (Y2E)i Expansion valve, storage vessel (Y3E)j Subcool heat exchangerk Oil separatorl Solenoid valve, oil accumulator (Y2S)m Solenoid valve, oil1 (Y3S)n Solenoid valve, oil2 (Y4S)o 4‑way valve, main (Y1S)p 4‑way valve, sub (Y5S)q Service portr Service port, refrigerant charges Stop valve, liquidt Stop valve, gasu Expansion valve, liquid cooling (Y3E)26.3 Wiring diagram: Outdoor unitRefer to the wiring diagram sticker on the unit. The abbreviations used are listedbelow:INFORMATIONThe wiring diagram on the outdoor unit is only for the outdoor unit. For the indoorunit or optional electrical components, refer to the wiring diagram of the indoor unit.1 This wiring diagram applies only to the outdoor unit.2 Symbols (see below).3 When using the optional adapter, refer to the installation manual of theoptional adapter4 For connection wiring to indoor–outdoor transmission F1‑F2,outdoor‑outdoor transmission F1‑F2, outdoor‑multi transmission Q1‑Q2,refer to the installation manual.5 How to use BS1~BS3 switch, refer to the "Service Precaution" label on theelectrical component box cover.6 When operating, do NOT short-circuit the protection devices (S1PH).7 Only for RYYQ model8 Only for RYYQ/RYMQ model9 For 8~12 HP: Connector X1A (M1F) is white, connector X2A (M2F) is red.9 For 14~20 HP: Colours (see below).10 Colours (see below).Symbols:Field wiringTerminal blockConnectorTerminal