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13 Technical data

Installer reference guide

23

ARXM25~35 RXM20~35 RXJ20~3
RXA20~35A3V1B
R32 split series
4P518023-5D – 2019.04

13

Technical data

subset

  of  the  latest  technical  data  is  available  on  the  regional  Daikin  website  (publicly  accessible).  The 

full  set

  of  latest  technical  data  is

available on the Daikin extranet (authentication required).

13.1

Wiring diagram

,

A

INDOOR

OUTDOOR

For applied parts and numbering, refer to the wiring diagram on the unit. Part numbering is by Arabic numbers in ascending order for each part 

and is represented in the overview below by symbol “*” in the part code.

Unified Wiring Diagram Legend

CIRCUIT BREAKER

: CONNECTION

: CONNECTOR

: EARTH

FIELD WIRING

: FUSE

INDOOR UNIT

OUTDOOR UNIT

PROTECTIVE EARTH

PROTECTIVE EARTH (SCREW)

: RECTIFIER

RELAY CONNECTOR

SHORT-CIRCUIT CONNECTOR

: TERMINAL

TERMINAL STRIP

WIRE CLAMP

WHT : WHITE
YLW : YELLOW

PNK 

: PINK

PRP, PPL :  PURPLE
RED  : RED

GRN : GREEN
GRY : GREY
ORG : ORANGE

BLK  : BLACK
BLU  : BLUE
BRN : BROWN

A*P 

PRINTED CIRCUIT BOARD

BS* 

PUSHBUTTON ON/OFF, OPERATION SWITCH

BZ, H*O 

BUZZER

C* 

: CAPACITOR

AC*, CN*, E*, HA*, HE*, HL*, HN*, : 

CONNECTION, CONNECTOR

HR*, MR*_A, MR*_B, S*, U, V,
W, X*A, K*R_*
D*, V*D 

DIODE

DB* 

DIODE BRIDGE

DS* 

DIP SWITCH

E*H 

: HEATER

F*U, FU* (FOR CHARACTERISTICS,  :  FUSE
REFER TO PCB INSIDE YOUR UNIT)
FG* 

CONNECTOR (FRAME GROUND)

H* 

: HARNESS

H*P, LED*, V*L 

PILOT LAMP, LIGHT EMITTING DIODE

HAP 

LIGHT EMITTING DIODE (SERVICE MONITOR GREEN)

HIGH VOLTAGE 

HIGH VOLTAGE

IES 

INTELLIGENT EYE SENSOR

IPM* 

INTELLIGENT POWER MODULE

K*R, KCR, KFR, KHuR, K*M 

MAGNETIC RELAY

: LIVE

L* 

: COIL

L*R 

: REACTOR

M* 

STEPPER MOTOR

M*C 

COMPRESSOR MOTOR

M*F 

FAN MOTOR

M*P 

DRAIN PUMP MOTOR

M*S 

SWING MOTOR

MR*, MRCW*, MRM*, MRN* 

MAGNETIC RELAY

: NEUTRAL

n=*, N=* 

NUMBER OF PASSES THROUGH FERRITE CORE

PAM 

PULSE-AMPLITUDE MODULATION

PCB* 

PRINTED CIRCUIT BOARD

PM* 

POWER MODULE

PS 

SWITCHING POWER SUPPLY

PTC* 

THERMISTOR PTC

Q* 

INSULATED GATE BIPOLAR TRANSISTOR 
(IGBT)

Q*DI 

EARTH LEAK CIRCUIT BREAKER

Q*L 

OVERLOAD PROTECTOR

Q*M 

THERMO SWITCH

R* 

: RESISTOR

R*T 

: THERMISTOR

RC 

: RECEIVER

S*C 

LIMIT SWITCH

S*L 

FLOAT SWITCH

S*NPH 

PRESSURE SENSOR (HIGH)

S*NPL 

PRESSURE SENSOR (LOW)

S*PH, HPS* 

PRESSURE SWITCH (HIGH)

S*PL 

PRESSURE SWITCH (LOW)

S*T 

: THERMOSTAT

S*RH 

HUMIDITY SENSOR

S*W, SW* 

OPERATION SWITCH

SA*, F1S 

SURGE ARRESTOR

SR*, WLU 

SIGNAL RECEIVER

SS* 

SELECTOR SWITCH

SHEET METAL  : 

TERMINAL STRIP FIXED PLATE

T*R 

: TRANSFORMER

TC, TRC 

TRANSMITTER

V*, R*V 

VARISTOR

V*R 

DIODE BRIDGE

WRC 

WIRELESS REMOTE CONTROLLER

X* 

: TERMINAL

X*M 

TERMINAL STRIP (BLOCK)

Y*E 

ELECTRONIC EXPANSION VALVE COIL

Y*R, Y*S 

REVERSING SOLENOID VALVE COIL

Z*C 

FERRITE CORE

ZF, Z*F 

NOISE FILTER

Summary of Contents for RXJ20M3V1B

Page 1: ...eference guide R32 split series English Installer reference guide R32 split series ARXM25N2V1B9 ARXM35N2V1B9 RXM20N2V1B9 RXM25N2V1B9 RXM35N2V1B9 RXJ20M3V1B RXJ25M3V1B RXJ35M3V1B RXA20A3V1B RXA25A3V1B...

Page 2: ...iping 15 6 5 3 To check for leaks 15 6 5 4 To perform vacuum drying 15 6 6 Charging refrigerant 16 6 6 1 About charging refrigerant 16 6 6 2 About the refrigerant 16 6 6 3 Precautions when charging re...

Page 3: ...ive gloves safety glasses when installing maintaining or servicing the system WARNING Tear apart and throw away plastic packaging bags so that nobody especially children can play with them Possible ri...

Page 4: ...nstallation of pipework shall be kept to a minimum WARNING If appliances contain R32 refrigerant the floor area of the room in which the appliances are installed operated and stored MUST be larger tha...

Page 5: ...gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Toxic gas may be produced if refrigerant gas comes into con...

Page 6: ...e fixed wiring WARNING ONLY use copper wires Make sure the field wiring complies with the applicable legislation All field wiring MUST be performed in accordance with the wiring diagram supplied with...

Page 7: ...latest technical data is available on the regional Daikin website publicly accessible The full set of latest technical data is available on the Daikin extranet authentication required 2 2 Installer r...

Page 8: ...y flammable 4 1 Overview About the unit This chapter contains information about Identification of the outdoor unit 4 2 Identification NOTICE When installing or servicing several units at the same time...

Page 9: ...ir outlet b Air inlet NOTICE The height of the wall on the outlet side of the outdoor unit MUST be 1200 mm NOTICE Do NOT stack the units on each other Do NOT hang the unit on a ceiling Strong winds 18...

Page 10: ...eral snowfall is possible make sure that the heat exchanger coil is NOT affected by the snow If necessary install a snow cover or shed and a pedestal 5 2 3 Refrigerant piping length and height differe...

Page 11: ...escribes what you have to do and know on site to install the system Typical workflow Installation typically consists of the following stages 1 Opening the unit 2 Mounting the outdoor unit 3 Connecting...

Page 12: ...bottom side of the unit in order to prevent water from getting into the unit and to avoid drain water dripping see the following figure NOTICE If the unit is installed in a cold climate take adequate...

Page 13: ...ion period Protection method Outdoor unit 1 month Pinch the pipe 1 month Pinch or tape the pipe Indoor unit Regardless of the period INFORMATION Do NOT open the refrigerant stop valve before checking...

Page 14: ...panner on the stem cap as this could cause a refrigerant leak a b a Spanner b Torque wrench When it is expected that the operating pressure will be low e g when cooling will be performed while the out...

Page 15: ...ely Using the same pump for other refrigerants may damage the pump and the unit NOTICE Connect the vacuum pump to the service port of the gas stop valve Make sure that the gas stop valve and liquid st...

Page 16: ...Vacuum drying on the outdoor unit s internal refrigerant piping is performed NOTICE Before completely recharging perform vacuum drying on the outdoor unit s internal refrigerant piping as well Typical...

Page 17: ...CO2 equivalent Formula to calculate the quantity in CO2 equivalent tonnes GWP value of the refrigerant total refrigerant charge in kg 1000 Use the GWP value mentioned on the refrigerant charge label...

Page 18: ...A A a Curled single core wire b Screw c Flat washer Stranded conductor wire with round crimp style terminal c b b a c a B B a Terminal b Screw c Flat washer O Allowed X NOT allowed Tightening torques...

Page 19: ...cally consists of the following stages 1 Checking the Checklist before commissioning 2 Performing a test run for the system 7 2 Precautions when commissioning DANGER RISK OF ELECTROCUTION DANGER RISK...

Page 20: ...sumes electricity When the power turns back on after a power break the previously selected mode will be resumed 7 6 Starting up the outdoor unit See the indoor unit installation manual for configurati...

Page 21: ...based on symptoms Before troubleshooting Carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring 11 2 Precautions when troublesho...

Page 22: ...rate recovery system so that the unit s compressor does NOT have to operate NOTICE During pump down operation stop the compressor before removing the refrigerant piping If the compressor is still runn...

Page 23: ...DS DIP SWITCH E H HEATER F U FU FOR CHARACTERISTICS FUSE REFER TO PCB INSIDE YOUR UNIT FG CONNECTOR FRAME GROUND H HARNESS H P LED V L PILOT LAMP LIGHT EMITTING DIODE HAP LIGHT EMITTING DIODE SERVICE...

Page 24: ...rtain product or application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Mainten...

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Page 28: ...4P518023 5D 2019 04 Copyright 2018 Daikin...

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