Daikin VRV IV Series - Wiring diagram: Compressor unit

24 | Technical data
Installer and user reference guide
134
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
R3T (A) Thermistor (coil)
R21T (B) Thermistor (discharge)
R3T (B) Thermistor (suction accumulator)
R5T (B) Thermistor (liquid)
R6T (B) Thermistor (subcool heat exchanger gas)
R7T (B) Thermistor (suction compressor)
S1NPH High pressure sensor
S1NPL Low pressure sensor
S1PH High pressure switch
Y1E, Y2E Electronic expansion valve
Y1S Solenoid valve (4‑way valve)
Heating
Cooling
24.2 Wiring diagram: Compressor unit
The wiring diagram is delivered with the unit, located on the switch box cover.
Symbols:
X1M Main terminal
Earth wiring
15
Wire number 15
Field wire
Field cable
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Connection ** continues on page 12 column 2
1
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
Legend for wiring diagram 5HP:
A1P Printed circuit board (main)
A2P Printed circuit board (inverter)
BS* Push button (A1P)
C* Capacitor (A2P)
DS1 DIP switch (A1P)
F1U, F2U Fuse (T 31.5A / 250V) (A1P)
F3U, F5U Fuse (T 6.3A / 250V) (A1P)
H*P LED (service monitor orange) (A1P)
HAP Running LED (service monitor green) (A*P)
K1M Magnetic contactor (A2P)
K1R Magnetic relay (A*P)
L1R Reactor
M1C Motor (compressor)