Daikin VRV IV Series - Page 135

24 | Technical data
Installer and user reference guide
135
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
M1F Motor (fan)
PS Switching power supply (A2P)
Q1DI Earth leakage circuit breaker (field supply)
R* Resistor (A2P)
R2T Thermistor (discharge)
R3T Thermistor (suction accumulator)
R4T Thermistor (subcool heat exchanger gas)
R5T Thermistor (suction compressor)
R7T Thermistor (liquid)
R10T Thermistor (fin)
S1NPL Low pressure sensor
S1NPH High pressure sensor
S1PH High pressure switch
S*S Cool/heat selector switch (optional)
V1R IGBT power module (A2P)
V2R Diode module (A2P)
X1M Terminal strip (power supply)
X2M Terminal strip (transmission wiring)
X*Y Connector
Y3E Electronic expansion valve
Y1S Solenoid valve (4‑way valve)
Z*C Noise filter (ferrite core)
Z*F Noise filter (A1P)
Notes for 8HP:
1 When using the optional adapter, refer to the installation manual of the
optional adapter.
2 Refer to the installation or service manual on how to use BS1~BS3 push
buttons, and DS1+DS2 DIP switches.
3 Do not operate the unit by short-circuiting protection device S1PH.
4 For connection of INDOOR-OUTDOOR F1-F2 transmission wiring, and
OUTDOOR-OUTDOOR F1-F2 transmission wiring, refer to the service
manual.
Legend for wiring diagram 8HP:
A1P Printed circuit board (main)
A2P Printed circuit board (noise filter)
A3P Printed circuit board (inverter)
A4P Printed circuit board (cool/heat selector)
BS* Push button (mode, set, return) (A1P)