Piping Diagram: Outdoor Unit; Wiring Diagram: Outdoor Unit - Daikin RXYSQ6T7Y1B9 Installation And Operation Manual

9 Technical data
(B2) Then it is not required to install a roof, but seal the gap between the upper and lower units to prevent discharged air from flowing back to the
suction side through the bottom of the unit.
9.2

Piping diagram: Outdoor unit

b c d
R7T
Y3E
R6T
a
g
R5T
l
k c j
9.3

Wiring diagram: Outdoor unit

The wiring diagram is delivered with the unit, located at the inside of
the service cover.
Notes for RXYSQ6_Y1:
1 Symbols (see below).
2 For X37A refer to the installation manual of the option.
3 Refer to the installation or service manual on how to use
BS1~BS4 push buttons, and DS1‑1 and DS1‑2 DIP switches.
4 Do not operate the unit by short-circuiting protection device
S1PH.
5 Refer to the installation manual for indoor-outdoor
transmission F1-F2 wiring.
6 When using the central control system, connect outdoor-
outdoor transmission F1-F2.
Symbols:
X1M Main terminal
Earth wiring
15
Wire number 15
Field wire
Field cable
**
/12.2
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 RXYSQ6_Y1:
A1P Printed circuit board (main)
A2P Printed circuit board (inverter)
Installation and operation manual
24
c
Y1E
e
M1F M2F
R3T
R4T
Y1S
f
R2T
R1T
h
S1NPH
S1PH
M1C
i
INV
S1NPL
a Stop valve (gas)
b Stop valve (liquid)
c Filter (3×)
d Subcool heat exchanger
e Pressure regulating valve
f Heat exchanger
g Service port (high pressure)
h Check valve
i Compressor accumulator
j Capillary tube
k Service port (refrigerant charge)
l Accumulator
M1C Compressor
M1F-M2F Fan motor
R1T Thermistor (air)
R2T Thermistor (discharge)
R3T Thermistor (suction 1)
R4T Thermistor (heat exchanger)
R5T Thermistor (suction 2)
R6T Thermistor (subcool heat exchanger)
R7T Thermistor (liquid pipe)
S1NPH High pressure sensor
S1NPL Low pressure sensor
S1PH High pressure switch
Y1E Electronic expansion valve (main)
Y3E Electronic expansion valve (subcool heat exchanger)
Y1S Solenoid valve (4‑way valve)
Heating
Cooling
BS* Push buttons (mode, set, return, test, reset) (A1P)
C* Capacitor (A2P)
DS1 DIP switch (A1P)
F1U, F2U Fuse (T 31.5 A / 500 V) (A1P)
F1U Fuse (T 5.0 A / 250 V) (A2P)
F3U, F4U, Fuse (T 6.3 A / 250 V) (A1P)
F5U
H*P LED (service monitor orange) (A1P)
HAP Running LED (service monitor green) (A*P)
K1M Magnetic contactor (A2P)
K*R Magnetic relay (A*P)
L1R Reactor
M1C Motor (compressor)
M1F Motor (upper fan)
M2F Motor (lower fan)
PS Switching power supply (A2P)
Q1DI Earth leakage circuit breaker (field supply)
R* Resistor (A2P)
R1T Thermistor (air)
R2T Thermistor (discharge)
R3T Thermistor (suction 1)
R4T Thermistor (heat exchanger)
R5T Thermistor (suction 2)
R6T Thermistor (subcool heat exchanger)
R7T Thermistor (liquid pipe)
R10T Thermistor (fin)
S1NPH High pressure sensor
S1NPL Low pressure sensor
S1PH High pressure switch
S1S Air control switch (option)
RXYSQ6T7Y1B9
VRV IV-S system air conditioner
4P397285-1B – 2016.03