Daikin RXYSQ5T7V1B, Installation And Operation Manual

10 For the user

Installation and operation manual

27

RXYSQ4~Y1B
VRV IV-S system air conditioner
4P397284-1 – 2015.05

R6T

Thermistor (subcool heat exchanger)

R7T

Thermistor (liquid pipe)

FINTH

Thermistor (fin)

S1NPH

High pressure sensor

S1NPL

Low pressure sensor

S1PH

High pressure switch

S1S

Air control switch (option)

S2S

Cool/heat selector switch (option)

V1R

IGBT power module (A1P)

V2R

Diode module (A1P)

V*T

Insulated gate bipolar transistor (IGBT) N-channel
(A1P)

V*D

Diode (A1P)

X*A

PCB connector

X*M

Terminal strip

X*Y

Connector

X37A

Connector (power supply for option PCB)

Y1E

Electronic expansion valve (main)

Y3E

Electronic expansion valve (subcool heat exchanger)

Y1S

Solenoid valve (4‑way valve)

Z*C

Noise filter (ferrite core)

Z*F (A*P)

Noise filter

Legend for wiring diagram RXYSQ4~6_Y1:

A1P

Printed circuit board (main)

A2P

Printed circuit board (inverter)

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,
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)

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)

S2S

Cool/heat selector switch (option)

V1R

IGBT power module (A2P)

V2R, V3R

Diode module (A2P)

X*A

PCB connector

X*M

Terminal strip

X*Y

Connector

X37A

Connector (power supply for option PCB)

Y1E

Electronic expansion valve (main)

Y3E

Electronic expansion valve (subcool heat exchanger)

Y1S

Solenoid valve (4‑way valve)

Z*C

Noise filter (ferrite core)

Z*F

Noise filter

For the user

10

About the system

The indoor unit part of VRV IV-S heat pump system can be used for
heating/cooling  applications.  The  type  of  indoor  unit  which  can  be
used depends on the outdoor units series.

NOTICE

Do not use the air conditioner for other purposes. In order
to  avoid  any  quality  deterioration,  do  not  use  the  unit  for
cooling  precision  instruments,  food,  plants,  animals  or
works of art.

NOTICE

For future modifications or expansions of your system:

A  full  overview  of  allowable  combinations  (for  future
system  extensions)  is  available  in  technical  engineering
data  and  should  be  consulted.  Contact  your  installer  to
receive more information and professional advice.

INFORMATION

▪ Combination of VRV DX and RA DX indoor units is not

allowed.

▪ Combination  of  RA  DX  and  AHU  indoor  units  is  not

allowed.

▪ Combination of RA DX and aircurtain indoor units is not

allowed.