Mitsubishi Heavy Industries FDCR224KXE6 User manual

VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS
Alternative refrigerant R410A use models
(OUTDOOR UNIT)
KX6 series
FDCR224KXE6
FDCR280KXE6
(Heat pump type)
Manual No. '11
• KX-T-166
TECHNICAL MANUAL
⑴RegardingtheIndoorunitseries,refertothemanualNo.'10KX-DB-144
⑵RegardingtheDuctConnected-HighstaticPressure-typeOutdoorAirProcessingUnitSeries
(FDU500 1800FKXE6),refertotheDATABOOKNo.'08 KX-DB-122
• Note
updated November 27, 2014
Service code
FDCR224KXE6
FDCR280KXE6
1 → L Exterior dimensions are changed to comply with
amended safety standard for LVD(EN60335-1:2012)
ChangesHistory of service codeModel
L
L1
1
Page
1
Exterior dimensionsService code
P3
L
P153

'11 • KX-T-166
CONTENTS
1 GENERAL INFORMATION ............................................................................... 1
1.1 Increased indoor unit connection capacity................................................... 1
1.2 How to read the model name....................................................................... 1
1.3 Branch pipe set and Header pipe set........................................................... 1
2 OUTDOOR UNIT............................................................................................... 2
2.1 Specifications............................................................................................... 2
9 OUTDOOR UNIT (Service code L) ............................................................. 153
9.1 Exterior dimensions .................................................................................. 153
2.2 Exterior dimensions..................................................................................... 3
2.3 Electrical wiring............................................................................................ 6
2.4 Noise level................................................................................................... 7
3 RANGE OF USAGE & LIMITATIONS.............................................................. 8
4 SELECTION CHART...................................................................................... 10
5 PIPING SYSTEM............................................................................................ 17
6 APPLICATION DATA..................................................................................... 19
6.1 Cautionsforreuseofexistingpipes ......................................................... 19
6.2 Installation of outdoor unit.......................................................................... 22
6.3 Method for connecting the accessory pipe................................................ 38
6.4 Installation work check sheet (For heat pump unit)................................... 39
6.5 Check operation procedure........................................................................ 41
6.6 Instructions for installing the branch pipe set (option)................................ 49
6.7 Service valve kit installation manual.......................................................... 53
6.8 Pipe washing check sheet......................................................................... 55
6.9 Instruction manual piping re-fresh kit......................................................... 56
7 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER.................. 58
7.1 Operation control function by the outdoor controller.................................. 58
8 SYSTEM TROUBLESHOOTING PROCEDURE............................................ 89
8.1 Basics of troubleshooting........................................................................... 89
8.2 Explanation of troubleshooting................................................................... 90
8.3 Contents of troubleshooting....................................................................... 91
8.4 Outdoor unit control PCB replacement procedure................................... 146
8.5 Inverter PCB replacement procedure...................................................... 148
#

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1
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'11 • KX-T-166
1 GENERAL INFORMATION
1.1 Increased indoor unit connection capacity
• Capacity from 50% to 130% is possible
FDCR224KXE6
FDCR280KXE6
1 to 13 units
1 to 16 units 140 ~ 364
112 ~ 292
Number of connectable Connectable capacity
Item
Model
1.2 How to read the model name
(1) Outdoor unit
Example:
FDCR 224 KX E 6
Series No.
Application power source...See the specications
Multi KX series
Nominal capacity (nominal cooling capacity : 22.4kW)
Model name (Outdoor unit)
Note
This unit complies with EN61000-3-3.
For outdoor unit, EN61000-3-2 is not applicable as consent by the utility company or notication to the utility company is given
before usage.
1.3 Branch pipe set and Header pipe set
Total capacity downstream
Less than 180
180 or more but less than 371
Branching pipe set
DIS-22-1G
DIS-180-1G
Total capacity downstream
Less than 180
180 or more but less than 371
Header set model type
HEAD4-22-1G
HEAD6-180-1G
Number of branches
4 branches at the most
6 branches at the most
(1) Branch pipe set (Option)
(2) Header pipe set (Option)

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'11 • KX-T-166
2 OUTDOOR UNIT
2.1 Specifications
Models
Nominalcoolingcapacity*1 kW 22.4 28.0
Nominalheatingcapacity*2 25.0 31.5
Powersource
Powerconsumption Cool kW 5.60 8.09
Heat 6.03 8.21
Runningcurrent Cool A9.25／8.47 13.22／12.10
Heat 9.85／9.02 13.41／12.28
SoundPressureLevel（Cool／Heat） dB（A） 58／58 59／60
Exteriordimensions
Height×Width×Depth mm
Netweight kg 224
Refrigerantequipment
compressortype&Q'ty GTC5150NH40K×1 GTC5150NH40K×1
Motor kW 3.81 5.22
Startingmethod
capacitycontrolrange % 27-114 20-115
Crankcaseheater W
Refrigerantequipment
Heatexchanger
Refrigerantcontrol
Refrigerant
Quantity kg
Refrigerantoil l
Defrostcontrol
Airhandlingequipment
fantype&Q'ty
Motor W
Startingmethod
Airflow（Standard） CMM
Shock&vibrationabsorber
safetyequipment
Installationdata LiquidLine
Refrigerantpipingsize GasLine mm（in）
Connectingmethod
Drain
Insullationforpiping
Accessories
Exteriorappearance
（Munsellcolor）
FDCR224KXE6 FDCR280KXE6
connectablecapacity % 50-130 50-130
StaticPressure Pa
1675×1080×480
Directlinestart
33
Straightfin&innergroovedtubing
Electronicexpansionvalve
R410A
11.5
1.7（M-MA32R）
MCcontrolledDe-Icer
Propellerfan× 2
144×2
Directlinestart
200
Rubbermount（forcompressor）
Liquid：Flare／Gas：Brazing
Holefordrain（
φ
20×4）
Necessary（bothLiquid&Gaslines）
stuccowhite
（4.2Y7.5／1.1）nearequivalent
Max.35
380-415V3N〜50Hz
Compressorovercurrentprotection／abnormalhighpressureprotection
abnormallowpressureprotection／abnormaldischargetempertureprotection／overcurrentprotection
φ
9.52（3／8"）〜
φ
15.88（5／8"）
φ
19.05（3／4"）〜
φ
25.4（1"）
φ
22.22（7／8"）〜
φ
28.58（11／8"）
Item Indoor air temperature Outdoor air temperature Standards
Operation DB WB DB WB
Cooling*1 27:19:35:24:
ISO-T1
Heating*2 20:-7:6:
Notes (1) The data are measured at the following conditions. (The piping length is 7.5m)
(2) This packaged air-conditioner is manufactured and tested in conformity with the following standard.
ISO-T1 "UNITARY AIR-CONDITIONERS"
(3) Refer to the technical data about below.
・Reusability of the existing pipes.
・Necessity of Re-fresh kit and Service valve kit when washing existing pipes.
Adapted to RoHS directive
PCB003Z361

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'11 • KX-T-166
2.2 Exterior dimensions (1) Outdoor unit Models FDCR224KXE6, 280KXE6
1675
20
195690195
3050
30105
84
55
161
56
67
5042
1080
174
8455
CC
C
C
1451 54
G
B
194※
634
553
A
43※
69※
60
159 35
3948039
1952019
E
E
141
241
321
361
421
461
701
989
TerminalBlock
B
A
G
48
120
D
69
8455
L1
L3
Intake
Outlet
Intake
Service
Minimuminstallationspace
space
L2 L4
φ19.05（3／4"）（Flare）
Content
C Pipe／cabledraw-outhole
D
E Anchorbolthole
Draindischargehole
Symbol
B
A
M10×4places
φ20×4places
Servicevalveconnection（liquidside）
φ12.7（1／2"）（Flare）
Cabledraw-outhole
G Connectingpositionofthelocalpipe.（gasside）
φ25.4（1"）（Brazing）
φ30
Notes
（1）Itmustnotbesurroundedbywallsonthefoursides.
（2）Theunitmustbefixedwithanchorbolts.Ananchorboltmustnot
protrudemorethe15mm.
（3）Wheretheunitissubjecttostrongwinds,layitinsuch
adirectionthatthebloweroutletfacesperpendicularly
tothedominantwinddirection.
（4）Leave1mormorespaceabovetheunit.
（5）Awallinfrontofthebloweroutletmustnotexceedtheunitsheight.
（6）Themodelnamelabelisattachedonthelowerrightcornerofthefront.
（7）ConnecttheServicevalvewithlocalpipebyusingthepipeoftheattachment.
（Gassideonly）
（8）Mark※showstheconnectingposotionofthelocalpipe.（Gassideonly）
Servicevalveconnectionofthe
attachedconnectingpipe（gasside）
80
4places
L2
L3
L4
L1
300
300
Open
Open
250（5）
300
1500（500）
Open
300
5
Unit:mm
Ｉ ＩＩ ＩＩＩ
Examplesof
Dimensions
installation
*1
*2*2
250（5）250（5）
*2
*1Figurein（）showsthevalueapplicablewhen
theflexflowadaptorisinstalled.
*2Underthesettingconditionasspecifiedin（）,itisnecessary
tosecure250mmforthedimensionL4whenreplacingthe
compressor.Establishthisforexamplebymovingtheunit
duringthework.
34
22
64
8
Cabledraw-outhole
φ45
Cabledraw-outhole
φ22
Cabledraw-outhole
φ34
F1
F2
F3
F4
F
3
F 4
F 2
F 1
124
155 42
F 4
F 3
PCB003Z362

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'11 • KX-T-166
(2) Service valve kit
160
476
150150
27
215
22
506
430
37
63
62
300
Connectinghole
（Ø25.4）forpipeat
refrigerantgasside
（Tooutdoorunit）
Connectinghole
（Ø25.4）forpipeat
refrigerantgasside
（Toindoorunit）
Holefor4-anchorbolt
（forM10bolt）
Notes1.InstalltheServicevalvekitwhencarryingoutthe
washingoperationutilizingexistingpipes.
Fortheoutdoorunitswhichcanusethiskit,refertothe
technicaldata.
2.TheServicevalvekitcannotbeinstalledupside-down.
Installthekitatlevel.
3.UsenewpipestoconnectbetweentheServicevalvekit
andtheoutdoorunit.Itisprohibitedtouseexistingpipes.
Restricttheactualpipelenghtnolongerthan3m.
4.Securetheservicespacesshowninthefigurebelow.
1350
500
FDCR-V-KIT-E
Model Weight
10.7kg
（Necessaryforwashingoperation）
Securealsoanoverheadspacesufficient
forworkinginastandingposition.
（Rear）
（Front）
Servicespace
IndoorOutdoor
PCB003Z365

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5
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'11 • KX-T-166
PCB003Z366
(3) Pipe Re-fresh Kit Model :FDCR
-
KIT
-
E
35162
1283
（189）
602
404
47
201
126151
158 25
125
CheckjointL
Accumulator
Strainer
Checkvalve
CheckjointR
Bypassgaspipe
servicevalve
Flange
Oildrainhole
Flange
Oildrainhole
Bypassgaspipe
servicevalve
Accessory
Flexibletubex2pcs.
Flangefixingboltx8pcs.
Gasketx4pcs.

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'11 • KX-T-166
2.3 Electrical wiring Models FDCR224KXE6, 280KXE6
LED3
AC1
V
UW
CM
RD
WH
BL
L1
K
G
SIGNAL
LINE
TB2
A1
B1
L3
TB1
L1
L2
SW2
M
R2
M M
EEVH EEVSC
FMo1
M
FMo2
PWB1
SW1
CONTROL
t° t° t° t° t°
J13
SW7
SW8
SW9
Y
J11 J12
7SEG1 7SEG2
ON
OFF 1 2 3 3654 7 8 21 54 76 8
J15J14 LED1 LED2
SW3 SW4
RD
CH1
BR
BL
20S
BL
SV6
External
input
Demand
input
1 2 73 4 5 6 8
PC
（RS232C）
CNV
SW5
BL
SV1
BL
SV11
Operation
output
Cooling／Heating
forcedinput
Trouble
output
Silentmode
input
MS
3〜
Earthleakage
breaker
POWERSOURCE
t° t°t° t°
A2
B2
BL
RD
WH
L1i
L2i
L3i
L1o
L2o
L3o
E
-6 +4
R5
DM
L2
+
R4
IPM PN
VU W
PWB2
F1（10A）
AC2 AC3
CNSL1,2
L3
BK
PSH
WH RD
PSL
BL
WH
BL
RD
BK BK BK BK
BL
RD
WH
WH
BK
BL
WH
BK
BK GN
BL
BL
RD
BETWEENTHEINDOORUNIT
ANDTHEOUTDOORUNIT
BETWEENTHEOUTDOORUNITS
A2 B2
A1 B1
LED1（INV）
Reseave
output
C2
BK Black
BL
BR
GN
GR
OR
RD
WH
Y
P
Y／GN
Blue
Brown
Green
Gray
Orange
Red
White
Yellow
Pink
Yellow／Green
Colorsymbol
N
Ni No
R1
RD
+
R3
C1
BK BK
Va1 Va2 Va3
SA
GN
GN
WH
RDRD
RD
RD
NETWORKCONNECTOR
BK WH RD
BR RD BL WH OR OR WH BL RD BR
WH Y OR RD BL BL RD OR Y WH
BK BK BK BK BK BK BK BK
WH
WH
NOISE
FILTER
PWB3
CNR
（WH）
INVERTER
CNA
（WH）
CNI2
（WH）
CNX1
CNA1
（WH）
CNA2
（BR）
CNI1
（WH）
CNW
（RD）
CNR1
（WH）
CNN1
（RD）
CNN6 CNN2
（GN）
CNN9
（BK）
CNL1
（BL）
CNL2
（WH） CNZ1
（RD）
CNH
（BL）
CNY
（WH）
CNG1
（BL）
CNG2
（WH）
CNS2
（RD）
CNS1
（GN）
CNP1CNU1
（BL）
CNF2
（GN）
CNF1
（WH）
CNB2
（RD）
CNTH
（WH）
CNEEV2
（BL）
CNEEV1
（RD）
CNFAN2
（WH）
CNFAN1
（WH）
Tho-R1
Tho-D1
Tho-S
Tho-A
Tho-R2
Tho-SC
Tho-H
Tho-C1
Tho-P1
WH
WH
BK
CNM1
RD BK
WH
380／415V3N〜50Hz
Y Y
RD
WH
WH
1 2 73 4 5 6 8
SW6
CH1 Crankcaseheater
CM Compressormotor
CNA-Z1 Connector
CT1 Currentsensor
C1 Electrolyticcapacitor
DM Diodemodule
EEVH Heatingexpansionvalve
EEVSC Super-coolingcoilexpansionvalve
FMo1,2 Fanmotor
F1 Fuse
IPM Intelligentpowermodule
J11,12 Powersupply,voltageswitching
J13 Externalinputswitchinglevel／pulse
J14 Spare
J15 Defrostingstarttemperatureselection,
normal／coldregion
LED1 Inspection（Red）
LED1（INV） Normal（Yellow）Flashing
LED2 Normal（Green）
LED3 Service（Green）
L1˜L3 DCreactor
PSH Highpressuresensor
PSL Lowpressuresensor
PWB1˜3 PCB
R1 Rushcurrentsuppressionresistor
SV1 Solenoidvalve（fluidreturn）
SV6 Solenoidvalve（oilreturn）
SV11 Solenoidvalve（gasbypass）
TB1,2 Terminalblock
Tho-A Externalairthermistor
Tho-C1 Under-domethermistor
Tho-D1 Dischargepipethermistor
Tho-H Super-coolingcoilthermistor2
Tho-P1 Powertransistorthermistor
Tho-R1 Heatexchangerthermistor1（Exit／front）
Tho-R2 Heatexchangerthermistor1（Exit／rear）
Tho-S Suctionpipethermistor
Tho-SC Super-coolingcoilthermistor1
X01〜03,06〜09 Aux.relay
7SEG1 7-segmentLED（Datadisplay）
7SEG2 7-segmentLED（Functiondisplay）
20S 4-wayswitchingsolenoid
52X1,2 SolenoidforCM
63H1-1 Highpressureswitch
SW1
SW2
SW3-1 InspectionLEDreset
SW3-2 Spare
SW3-4,5 Spare
SW3-7 ON Forcedheating／coolingmode
OFF Normaloperation
SW3-8 ON Testmode
OFF Normaloperation
SW4-1〜4 Modelsetting
SW4-5,6 Demandswitching
SW4-7,8 Spare
SW5-1 ON Testrun
OFF Normaloperation
SW5-2 ON Coolingattestrun
OFF Heatingattestrun
SW5-3 ON Pump-downoperation
OFF Normaloperation
SW5-4 Spare
SW5-5 ON SuperLinkcommunication
OFF SuperLink communication
SW7 Datadelete／write
SW8 7-segmentindicationup（1digit）
SW9 7-segmentindicationup（2digits）
AddresssettingSWoutdoorunitNo.（2digits）
AddresssettingSWoutdoorunitNo.（1digit）
52X252X1
WH
BL
WH
52X1
52X2 （GY） （PK）
（YE）
（YE）
localwiring.
shows
SV12
63H1-R1 63H1-R2
CNQ3
SV12 Solenoidvalve（gasbypass）
63H1-R1,2 Highpressureswitch
63H1-1
BK BK
CNQ1
（WH）
CNN4
（OR）
RD
（Y）
4
Circuitbreaker
forcabling
SW3-3 Modelsetting
SW3-6 ON Pipewashingoperation
OFF Normal operation
SW6-1〜8 Spare
SW5-6〜8 Spare
YE YE
RD
RD
RD
PCB003Z364

-
7
-
'11 • KX-T-166
Measured based on JIS B 8616
Mike position as highest noise level in position as below
Distance from front side 1m
Height 1m
2.4 Noise level
Model FDCR224KXE6
Noise level 58 dB (A)
Cooling
Noise level 58 dB (A)
Heating
Model FDCR280KXE6
Noise level 59 dB (A)
Cooling
Noise level 60 dB (A)
Heating
N40
N50
N30
N60
N70
N80
63 125 250 500 1000 2000 4000 8000
30
40
50
60
70
80
30
40
50
60
70
80
Souud Pressure Level (dB)
(standard 2×10-5
Pa)
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10-5
Pa)
Mid Octave Band Frequency (Hz)
N40
N50
N30
N60
N70
N80
63 125 250 500 1000 2000 4000 8000
30
40
50
60
70
80
30
40
50
60
70
80
N40
N50
N30
N60
N70
N80
63 125 250 500 1000 2000 4000 8000
30
40
50
60
70
80
30
40
50
60
70
80
Souud Pressure Level (dB)
(standard 2×10-5
Pa)
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10-5
Pa)
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10-5
Pa)
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10-5
Pa)
Mid Octave Band Frequency (Hz)
N40
N50
N30
N60
N70
N80
63 125 250 500 1000 2000 4000 8000
30
40
50
60
70
80
30
40
50
60
70
80
N40
N50
N30
N60
N70
N80
63 125 250 500 1000 2000 4000 8000
30
40
50
60
70
80
30
40
50
60
70
80
㪥㪋㪇
㪥㪌㪇
㪥㪊㪇
㪥㪍㪇
㪥㪎㪇
㪥㪏㪇
㪍㪊 㪈㪉㪌 㪉㪌㪇 㪌㪇㪇 㪈㪇㪇㪇 㪉㪇㪇㪇 㪋㪇㪇㪇 㪏㪇㪇㪇
㪊㪇
㪋㪇
㪌㪇
㪍㪇
㪎㪇
㪏㪇
㪊㪇
㪋㪇
㪌㪇
㪍㪇
㪎㪇
㪏㪇
㖸࿶䊧䊔䊦䋨㪻䌂䋩
䋨ၮḰ㖸࿶㪇㪅㪇㪇㪇㪉䊙䉟䉪䊨䊋䊷䊦䋩
䉥䉪䉺䊷䊑ᔃ๟ᵄᢙ㩷䋨䌈㫑䋩㩷
㪝㪛㪚㪧㪉㪉㪋㪊㪟㪣㪯㪰
಄ᚱ

-
8
-
'11 • KX-T-166
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
First branch
50m
MAX. 15m
MAX. 18m MAX. 18mMAX. 18m
MAX.
18m
(Outdoor unit is lower : 40m)
50m
MAX. 15m
(Outdoor unit is lower : 40m)
At the most, 130m or less
At the most, 130m or less
(Lowest indoor unit)
(Lowest indoor unit)
At the most, 90 m or less
40 m or less
(2)
40 m or less
(2)
At the most, 90m or less
(Highest indoor unit)
(Highest indoor unit)
First branch
(Header)
denotes
3RANGE OF USAGE & LIMITATIONS
Allowable length of refrigerant piping, height difference between indoor and outdoor unit
(1) Branch pipe method (using branch piping)
(2) Header System (Header used)
Note (1) A branch piping system cannot be connected after a header system.
(2) 90m or less (However, difference between the longest and shortest piping : 40m or less)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
First branch
50m
MAX. 90m
MAX. 90m
MAX. 90m
MAX. 15m
(Outdoor unit is lower : 40m)
MAX.
130m
50m
MAX. 130m
MAX. 15m
MAX. 18m MAX. 18m
MAX. 18m
MAX. 18m
(Outdoor unit is lower : 40m)
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
First branch
(Header)
denotes
System FDCR280KXE6
Please see the next page.
1 to 16 unit
1 to 13 unit
Item
Indoor intake air temperature
(Upper, lower limits)
Outdoor air temperature
(Upper, lower limits)
Single direction piping length Actual length : 160m or less, Eguivalent length : 185m or less
Total piping length
Main pipe length
510m or less
130m or less
90m or less (However, difference between the longest and shortest piping : 40m or less)
6 min or more (3 minutes or more from start to stop or 3 minutes or more from stop to start)
3 min or more
Within 10% of rated voltage
50m or less
40m or less
15m or less
Allowable pipe length from the first branching
18m or less
Elevation difference between the first branching point and the indoor unit
Number of connected units
Connectable capacity
(1)
FDCR224KXE6
112 ~ 292 140 ~ 364
Outdoor unit is higher
Outdoor unit is lower
Indoor units
that can be
used in
combination
Difference in
height between
indoor and outdoor
units
Difference in the elevation of indoor units in a system
Indoor unit atmosphere (behind ceiling)
temperature and humidity
Only models FDT, FDTC, FDTW, FDTS, FDTQ,
FDU, FDUM, FDQS, FDUH
1 cycle time
Stop time
Voltage fluctuation
Phase unbalance
Compressor
stop/start
frequency
Power source
voltage Voltage drop during start
Dew point temperature 28 or less, relative humidity 80% or less
(FDE, FDK, FDFL, FDFU : Dew point temperature 23 or less, relative humidity 80% or less)
Within 3% of rated voltage
Within 15% of rated voltage