Daikin VRVII User manual

Pocket
Manual
Service Diagnosis
Si30 - 701_A

VRV Series
i
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
ii
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
iv
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
1
Applicable Model Series
Refrigerant Type Product Series Reference
Page
R-22
Air Cooled
VRVII
Inverter
M(A)
2
VRVII-S 3
R-410A
VRVII 4
VRVII-S 5
Water
Cooled VRV-WII 6
Air Cooled
VRVIII
Inverter
P(A)
7
VRVIII-Q 9
VRVIII-S 10
Water
Cooled VRV-WIII 11

VRV Series
2
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 - -
VE
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
VE
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)
Y1
28M(A) 30M(A) 32M(A) 34M(A) 36M(A) 38M(A) 40M(A) 42M(A) 44M(A) 46M(A) 48M(A)

VRV Series
3
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
VE
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
VE
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
4
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
--
VE
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
Y1
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
5
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
VE
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