Wiring Diagram: Outdoor Unit - Daikin VRV IV+ RYYQ10U7Y1B Series Installation And Operation Manual

b Compressor
(M2C)
c Heat exchanger
d Fan
e Fan motor (M1F,
M2F)
f Accumulator
g Expansion valve,
main (Y1E)
h Expansion valve,
subcool heat
exchanger (Y2E)
i Expansion valve,
storage vessel
(Y4E)
j Subcool heat
exchanger
k Oil separator
l Solenoid valve, oil
accumulator
(Y2S)
20.3

Wiring diagram: Outdoor unit

Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below:
INFORMATION
The wiring diagram on the outdoor unit is only for the
outdoor unit. For the indoor unit 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 the optional adapter
4 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 the electrical component box cover.
6 When operating, do NOT short-circuit the protection devices
(S1PH).
7 Only for RYYQ model
8 Only for RYYQ/RYMQ model
9 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 wiring
Terminal block
Connector
Terminal
Protective earth
Noiseless earth
Earth wiring
Field supply
PCB
Switch box
Option
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546220-1F – 2023.01
n Solenoid valve, Colours:
oil2 (Y4S)
BLK
o 4‑way valve, main
(Y1S)
RED
p 4‑way valve, sub
BLU
(Y5S)
q Electrical
WHT
component box
GRN
r Service port,
refrigerant charge
Legend for wiring diagram 8~12 HP:
s Stop valve, liquid
A1P
t Stop valve, gas
A2P
A3P
u Stop valve,
equalising gas
A4P
A5P
v Heat
accumulation
BS1~BS3
element
(A1P)
w Service port
x Expansion valve,
C* (A3P)
liquid cooling
DS1, DS2
(Y3E)
(A1P)
E1HC
E3H
F1U, F2U
(A1P)
F3U
F101U
(A4P)
F401U,
F403U
(A2P)
F601U,
(A3P)
HAP (A*P)
K3R (A3P)
K4R (A1P)
K5R (A1P)
K6R (A1P)
K7R (A1P)
K9R (A1P)
K11R (A1P) Magnetic relay (Y5S)
L1R
M1C
M1F
PS (A1P,
A3P)
Q1DI
Q1LD (A1P) Earth current detector (field supply)
R24 (A4P)
R300 (A3P) Resistor (current sensor)
R1T
R3T
R4T
R5T
R6T
R7T
R8T
R21T
S1NPH
20 Technical data
Black
Red
Blue
White
Green
Printed circuit board (main)
Printed circuit board (noise filter)
Printed circuit board (inverter)
Printed circuit board (fan)
Printed circuit board (ABC I/P) (option)
Push button switch (MODE, SET, RETURN)
Capacitor
DIP switch
Crankcase heater
Drain pan heater (option)
Fuse (T 3.15 A / 250 V)
Field fuse
Fuse
Fuse
Fuse
Pilot lamp (service monitor is green)
Magnetic relay
Magnetic relay (Y1S)
Magnetic relay (Y2S)
Magnetic relay (E3H)
Magnetic relay (E1HC)
Magnetic relay (Y3S)
Reactor
Motor (compressor)
Motor (fan)
Switching power supply
Earth leakage circuit breaker (field supply)
Resistor (current sensor)
Thermistor (air)
Thermistor (accumulator)
Thermistor (heat exchanger, liquid pipe)
Thermistor (subcool liquid pipe)
Thermistor (heat exchanger, gas pipe)
Thermistor (heat exchanger, de-icer)
Thermistor (M1C body)
Thermistor (M1C discharge)
Pressure sensor (high)
Installation and operation manual
45