Daikin VRV IV Series - Wiring diagram: Heat exchanger unit

24 | Technical data
Installer and user reference guide
137
RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
X*Y Connector
Y2E Electronic expansion valve
Y1S Solenoid valve (4‑way valve)
Z*C Noise filter (ferrite core)
Z*F Noise filter
24.3 Wiring diagram: Heat exchanger unit
The wiring diagram is delivered with the unit, located at the inside of 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+8HP:
A1P Printed circuit board (main)
A2P Printed circuit board (adapter)
C1 Capacitor (A1P)
E1H Drain pan heater (optional)
F1U Fuse (F 1A / 250V) (optional)
F1U Fuse (T 6.3A / 250V for PCB) (A1P)
HAP Running LED (service monitor green) (A1P)
K1a Auxiliary relay (optional)
M*F Motor (fan)
Q1DI Earth leakage circuit breaker (field supply)
PS Switching power supply (A1P)
R1T Thermistor (air)
R2T Thermistor (gas)
R3T Thermistor (coil)