Daikin VRVII User manual

Pocket

Manual

Service Diagnosis

Si30 - 701_A

VRV Series

Applicable Models ................................................... 2

1. Symptom-based Troubleshooting ................... 12

2. Troubleshooting by Remote Controller ........... 18

2.1 The INSPECTION / TEST Button .....................18

2.2 Self-diagnosis by Wired Remote Controller ......19

2.3 Self-diagnosis by

Wireless Remote Controller ..............................22

2.4 Error Codes and Description ............................24

2.5 Error Codes - Sub Codes ..................................35

3. Troubleshooting by Indication on

the Remote Controller ..................................... 46

3.1 A0 External Protection Device

Abnormality .......................................................46

3.2 A1 PCB Abnormality ..........................................48

3.3 A3 Drain Level Control System (S1L)

Abnormality .......................................................49

3.4 A6 Fan Motor (M1F) Lock, Overload .................52

3.5 A6 Indoor Unit Fan Motor Abnormality ..............55

3.6 A6 Overload/Overcurrent/

Lock of Indoor Unit Fan Motor ..........................57

3.7 A7 Swing Flap Motor (M1S) Abnormality ..........63

3.8 A8 Power Supply Voltage Abnormality ..............66

3.9 A9 Electronic Expansion Valve Coil Abnormality /

Dust Clogging ...................................................68

3.10 AF Drain Level above Limit ................................71

3.11 AJ Capacity Determination Device

Abnormality .......................................................73

3.12 C1 Transmission Error

(between Indoor unit PCB and Fan PCB) .........75

3.13 C4 Thermistor for Liquid Pipe Abnormality ........78

3.14 C5 Thermistor for Gas Pipe Abnormality ...........80

3.15 C6 Combination Abnormality

(between Indoor unit PCB and Fan PCB) .........82

3.16 C9 Thermistor for Suction Air Abnormality ........84

VRV Series

3.17 CA Thermistor for Discharge Air

Abnormality .......................................................86

3.18 CC Humidity Sensor System Abnormality ..........88

3.19 CJ Room Temperature Thermistor in

Remote Controller Abnormality ........................90

3.20 E1 PCB Abnormality ..........................................92

3.21 E2 Earth Leakage by

Leak Detection PCB Assy ................................ 94

3.22 E3 Actuation of High Pressure Sensor ..............97

3.23 E3 Abnormal Discharge Pressure .....................99

3.24 E4 Actuation of Low Pressure Sensor .............102

3.25 E4 Abnormal Suction Pressure .......................104

3.26 E5 Inverter Compressor Motor Lock ................107

3.27 E6 STD Compressor Motor Overcurrent/

Lock ................................................................115

3.28 E7 Outdoor Unit Fan Motor Abnormality .........117

3.29 E9 Electronic Expansion Valve Coil

Abnormality .....................................................130

3.30 F3 Abnormal Discharge Pipe

Temperature ...................................................136

3.31 F6 Refrigerant Overcharged ............................143

3.32 H3 High Pressure Switch System

Abnormality .....................................................148

3.33 H7 Outdoor Unit Fan Motor Signal

Abnormality .....................................................150

3.34 H9 Outdoor Air Thermistor Abnormality ...........155

3.35 HJ Water System Error ....................................159

3.36 J1 High Pressure Sensor Abnormality ............162

3.37 J2 Current Sensor Abnormality .......................165

3.38 J3 Discharge Pipe Thermistor Abnormality .....168

3.39 J4 Heat Exchanger Gas Pipe Thermistor

Abnormality .....................................................170

3.40 J5 Suction Pipe Thermistor Abnormality .........172

3.41 J6 Outdoor Unit Heat Exchanger

Thermistor Abnormality ..................................174

3.42 J7 Liquid Pipe Thermistor Abnormality ...........176

3.43 J8 Thermistor System Abnormality .................178

3.44 J9 Subcooling Heat Exchanger Gas Pipe

Thermistor Abnormality ..................................180

3.45 JA High Pressure Sensor Abnormality ............182

VRV Series

iii

3.46 JA Discharge Pipe Pressure Sensor

Abnormality .....................................................185

3.47 JC Low Pressure Sensor Abnormality .............188

3.48 JC Suction Pipe Pressure Sensor

Abnormality .....................................................191

3.49 L1 Inverter PCB Abnormality ...........................194

3.50 L4 Inverter Radiation Fin Temperature Rise

Abnormality .....................................................202

3.51 L5 Momentary Overcurrent of

Inverter Compressor .......................................207

3.52 L8 Momentary Overcurrent of

Inverter Compressor .......................................213

3.53 L9 Inverter Compressor Startup Failure ..........219

3.54 LC Transmission Error between Inverter and

Control PCB ....................................................226

3.55 P1 Inverter Over-Ripple Protection ..................234

3.56 P4 Inverter Radiation Fin Thermistor

Abnormality .....................................................239

3.57 PJ Field Setting Abnormality after

Replacing Main PCB or Combination of

PCB Abnormality ............................................243

3.58 U0 Refrigerant Shortage Alert .........................250

3.59 U1 Reverse Phase, Open Phase .....................259

3.60 U2 Power Supply Insufficient or

Instantaneous Error ........................................261

3.61 U3 Check Operation is not Executed ...............283

3.62 U4 Transmission Error between

Indoor Units and Outdoor Units ......................285

3.63 U5 Transmission Error between

Remote Controller and Indoor Unit .................298

3.64 U7 Transmission Error

(Across Outdoor Units) ...................................300

3.65 U8 Transmission Error between Main and

Sub Remote Controllers .................................314

3.66 U9 Transmission Error between Indoor and

Outdoor Units in the Same System ................316

3.67 UA Improper Combination of Indoor and

Outdoor Units, Indoor Units and

Remote Controller ..........................................321

VRV Series

3.68 UC Address Duplication of

Centralized Remote Controller .......................335

3.69 UE Transmission Error between

Centralized Remote Controller and

Indoor Unit ......................................................336

3.70 UF System is not Set yet .................................341

3.71 UH System Abnormality,

Refrigerant System Address Undefined .........343

VRV Series

Applicable Model Series

Refrigerant Type Product Series Reference

Page

R-22

Air Cooled

VRVII

Inverter

M(A)

VRVII-S 3

R-410A

VRVII 4

VRVII-S 5

Water

Cooled VRV-WII 6

Air Cooled

VRVIII

Inverter

P(A)

VRVIII-Q 9

VRVIII-S 10

Water

Cooled VRV-WIII 11

VRV Series

Applicable Models

1. R-22

1-1. VRVII M(A) Series

Indoor Units

Outdoor Units

Type Model Name Symbol

Ceiling Mounted Cassette Type (Double Flow)

FXC 20L 25L 32L 40L 50L 63L 80L - 125L - -

Ceiling Mounted Cassette Type (Multi Flow)

FXF - 25L 32L 40L 50L 63L 80L 100L 125L - -

Ceiling Mounted Cassette Corner Type

FXK - 25L32L40L- 63L- - - - -

Slim Ceiling Mounted Duct Type

FXD-PVE20P25P32P--------

FXD-PVET20P25P32P--------

FXD-MVE 20M 25M 32M 40M 50M 63M - - - - -

FXD-MVET 20M 25M 32M 40M 50M 63M - - - - -

Ceiling Mounted Low Silhouette Duct Type

FXYD 20KA 25KA 32KA 40KA 50KA 63KA - - - - -

Ceiling Mounted Built-in Type FXS 20L 25L 32L 40L 50L 63L 80L 100L 125L - -

Ceiling Mounted Built-in Type (Rear Suction)

FXYB 20K 25K 32K 40K 50K 63K 80K 100K 125K - - V1

Ceiling Mounted Duct Type FXM - - - 40L 50L 63L 80L 100L 125L 200L 250L

Ceiling Suspended Type FXH - - 32L - - 63L - 100L -

Wall Mounted Type FXA 20L 25L 32L 40L 50L 63L - - -

Floor Standing Type FXL 20L 25L 32L 40L 50L 63L - - -

Concealed Floor Standing Type FXN 20L 25L 32L 40L 50L 63L - - -

Type Model Name Symbol

Heat Pump RXY

5M(A) 8M(A)

10M(A) 12M(A) 14M(A) 16M(A) 18M(A) 20M(A) 22M(A) 24M(A) 26M(A)

Y1(E)

YL(E)

TL(E)

28M(A) 30M(A) 32M(A) 34M(A) 36M(A) 38M(A) 40M(A) 42M(A) 44M(A) 46M(A) 48M(A)

Cooling Only RX

5M(A) 8M(A)

10M(A) 12M(A) 14M(A) 16M(A) 18M(A) 20M(A) 22M(A) 24M(A) 26M(A)

28M(A) 30M(A) 32M(A) 34M(A) 36M(A) 38M(A) 40M(A) 42M(A) 44M(A) 46M(A) 48M(A)

VRV Series

1-2. VRVII-S M Series

Indoor Units

Outdoor Units

Type Model Name Symbol

Ceiling Mounted Cassette Type (Double Flow) FXC 20L 25L 32L 40L 50L 63L 80L - 125L

Ceiling Mounted Cassette Type (Multi Flow) FXF - 25L 32L 40L 50L 63L 80L 100L 125L

Ceiling Mounted Cassette Corner Type FXK - 25L 32L 40L - 63L - - -

Slim Ceiling Mounted Duct Type FXD 20M 25M 32M 40M 50M 63M - - -

Ceiling Mounted Low Silhouette Duct Type FXYD 20KA 25KA 32KA 40KA 50KA 63KA - - -

Ceiling Mounted Built-in Type FXS 20L 25L 32L 40L 50L 63L 80L 100L 125L

Ceiling Mounted Built-in Type (Rear Suction) FXYB 20K 25K 32K 40K 50K 63K 80K 100K 125K V1

Ceiling Mounted Duct Type FXM - - - 40L 50L 63L 80L 100L 125L

Ceiling Suspended Type FXH - - 32L - - 63L - 100L -

Wall Mounted Type FXA 20L 25L 32L 40L 50L 63L - - -

Floor Standing Type FXL 20L 25L 32L 40L 50L 63L - - -

Concealed Floor Standing Type FXN 20L 25L 32L 40L 50L 63L - - -

Type Model Name Symbol

Heat Pump RXYM 4M 5M 6M VM

Cooling Only RXM 4M5M6M VMT

VRV Series

2. R-410A

2-1. VRVII M(A) Series

Indoor Units

Outdoor Units

Type Model Name Symbol

Ceiling Mounted Cassette Type (Double Flow)

FXCQ 20M 25M 32M 40M 50M 63M 80M -

125M

Ceiling Mounted Cassette Type (Multi Flow)

FXFQ - 25M 32M 40M 50M 63M 80M

100M 125M

Ceiling Mounted Cassette Corner Type

FXKQ -

25MA 32MA 40MA

63MA

-----

Slim Ceiling Mounted Duct Type

FXDQ-PVE20P25P32P--------

FXDQ-PVET

20P25P32P--------

FXDQ-NAVE 20NA 25NA 32NA 40NA 50NA 63NA

-----

FXDQ-NVET

20N 25N 32N 40N 50N 63N - - - - -

Ceiling Mounted Built-in Type FXSQ 20M 25M 32M 40M 50M 63M 80M

100M 125M

Ceiling Mounted Duct Type FXMQ - - -

40MA 50MA 63MA 80MA

100MA 125MA 200MA 250MA

Ceiling Suspended Type FXHQ - -

32MA

63MA

100MA

---

Wall Mounted Type FXAQ

20MA 25MA 32MA 40MA 50MA 63MA

-----

Floor Standing Type FXLQ

20MA 25MA 32MA 40MA 50MA 63MA

-----

Concealed Floor Standing Type FXNQ

20MA 25MA 32MA 40MA 50MA 63MA

-----

Ceiling Suspended Cassette Type FXUQ ------

71MA

100MA 125MA

-- V1

Connection Unit BEVQ ------

71MA

100MA 125MA

-- VE

Type Model Name Symbol

Heat Pump RXYQ

5MA 8MA

10MA 12MA 14MA 16MA 18MA 20MA 22MA 24MA 26MA

Y1(E)

YL(E)

TL(E)

28MA 30MA 32MA 34MA 36MA 38MA 40MA 42MA 44MA 46MA 48MA

Cooling Only RXQ 5MA 8MA

10MA 12MA 14MA 16MA 18MA 20MA 22MA 24MA 26MA

28MA 30MA 32MA 34MA 36MA 38MA 40MA 42MA 44MA 46MA 48MA

Heat Recovery REYQ 8M 10M 12M 14M 16M 18M 20M 22M 24M 26M 28M Y1B

30M 32M 34M 36M 38M 40M 42M 44M 46M 48M

VRV Series

2-2. VRVII-S M Series

Indoor Units

Outdoor Units

Type Model Name Symbol

Ceiling Mounted Cassette Type (Double Flow) FXCQ 20M 25M 32M 40M 50M 63M 80M -

125M

Ceiling Mounted Cassette Type (Multi Flow) 600X600 FXZQ 20M 25M 32M 40M 50M - - - -

Ceiling Mounted Cassette Type (Multi Flow) FXFQ - 25M 32M 40M 50M 63M 80M

100M 125M

Ceiling Mounted Casette Corner Type FXKQ - 25M 32M 40M - 63M - - -

Slim Ceiling Mounted Built-in Type (L.S.P) FXDQ 20N 25N 32N 40N 50N 63N - - -

Ceiling Mounted Built-in Type (M.S.P) FXSQ 20M 25M 32M 40M 50M 63M 80M

100M 125M

Ceiling Mounted Duct Type FXMQ - - - 40M 50M 63M 80M

100M 125M

Ceiling Suspended Type FXHQ - - 32M - - 63M -

100M

Wall Mounted Type FXAQ 20M 25M 32M 40M 50M 63M - - -

Floor Standing Type FXLQ 20M 25M 32M 40M 50M 63M - - -

Concealed Floor Standing Type FXNQ 20M 25M 32M 40M 50M 63M - - -

Type Model Name Symbol

Heat Pump RXYMQ 4M5M6M V4A

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