Mitsubishi Heavy Industries FDCH335CKXE6G-K User manual

VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS
Manual No. '09
• KX-T-139
Single use (Used also for combination)
FDCH335CKXE6G-K※, 400CKXE6G, 450CKXE6G, 504CKXE6G, 560CKXE6G, 560CKXE6G-K※,
615CKXE6G, 680CKXE6G
※FDC335KXE6G-K&FDC560KXE6G-K are only used for combining with other models.
Combination use
FDCH735CKXE6G, 800CKXE6G,850CKXE6G, 900CKXE6G,960CKXE6G, 1010CKXE6G,
1065CKXE6G, 1130CKXE6G, 1180CKXE6G, 1235CKXE6G, 1300CKXE6G, 1360CKXE6G
TECHNICAL MANUAL
High Head Models(100m)cooling only
(OUTDOOR UNIT)
In this Technical Manual,the High Head Models of outdoor units only are shown. Regarding the
standard models please see the Manual No. '09 • KX-DB-127 (Data Book) and Manual No.'09-KX-
SM-128 (Service Manual)
updated July 08, 2014
Service code
blank D- -
blank→DTransfer production place from Japan to Thailand
Except Specifications, Exterior dimentions and Electrical wiring, this technical manual can be applied for all service code.
Outdoor unit Changes
History of service code
FDCH335CKXE6G-K
FDCH1360CKXE6G
Page
Service code Specifications / Exterior dimentions / Electric wiring
blank
D
P4～8
P60～64
～

'09•KX-T-139
CONTENTS
1 GENERAL INFORMATION ............................................................................... 1
1.1 Specific features............................................................................................ 1
1.2 How to read the model name ........................................................................ 2
1.3 Table of models............................................................................................. 2
1.4 Table of indoor units panel (Option).............................................................. 2
1.5 Outdoor units combination table ................................................................... 3
2 OUTDOOR UNIT................................................................................................ 4
2.1 Specifications ................................................................................................ 4
2.2 Exterior dimensions....................................................................................... 6
2.3 Electrical wiring ............................................................................................. 8
2.4 Noise level..................................................................................................... 9
3 PIPING SYSTEM.............................................................................................. 10
4 RANGE OF USAGE & LIMITATIONS ............................................................. 11
5 SELECTION CHART ....................................................................................... 16
6 KX SERIES INSTALLATION MANUAL .......................................................... 28
7 CHECK OPERATION PROCEDURE .............................................................. 52
8 OUTDOOR UNIT (Service code D)
................................................................ 60
8.1 Specifications 60
8.2 Exterior dimentions
.....................................................................................
..............................................................................................
62
8.3 Electrical wiring ........................................................................................... 64
#

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'09•KX-T-139
FDCH1010CKXE6G
FDCH1065CKXE6G
FDCH1130CKXE6G
FDCH1180CKXE6G
FDCH1235CKXE6G
FDCH1300CKXE6G
FDCH1360CKXE6G
Number of connectable
2 to 59 units
2 to 62 units
2 to 66 units
3 to 69 units
3 to 72 units
3 to 76 units
3 to 80 units
Connectable capacity
504 ~ 1311
532 ~ 1384
560 ~ 1456
588 ~ 1528
615 ~ 1599
650 ~ 1690
680 ~ 1768
Item
Model
󱦯GENERAL INFORMATION
1.1 Specific features
(1) The R410A refrigerant is used.
The refrigerant R410A, with an ozone destruction coefcient of zero, is used and the CO2discharge volume is reduced, In ad-
dition, R410A is a pseudo-azeotropic refrigerant, so there is little change in its consistency that would cause it to divide into the
gas and liquid phases, or undergo temperature slide, and it is also possible to add refrigerant on-site.
(2) Height difference from 50m to 100m.
Maximum allowable height difference between the outdoor and the indoor unit located at the lowest height position has
been increased from 50m to 100m.(1) (When the outdoor unit is located at higher position than the indoor unit)

(3) Connectable indoor capacity.
(a) Capacity from 50% to 200% is possible.
Note (2) When connecting the indoor unit type FDK, FDFL, FDFU or FDFW Series, limit the connectable capacity not higher than
130%.
(b) Capacity from 50% to 160% is possible.
Note (2) When connecting the indoor unit type FDK, FDFL, FDFU or FDFW Series, limit the connectable capacity not higher than
130%.
(c) Capacity from 50% to 130% is possible.
FDCH400CKXE6G
FDCH450CKXE6G
Number of connectable
1 to 36 units
1 to 40 units
Connectable capacity
(2)
200 ~ 800
225 ~ 900
Item
Model
FDCH504CKXE6G
FDCH560CKXE6G
FDCH615CKXE6G
FDCH680CKXE6G
FDCH735CKXE6G
FDCH800CKXE6G
FDCH850CKXE6G
FDCH900CKXE6G
FDCH960CKXE6G
Number of connectable
1 to 36 units
1 to 40 units
2 to 44 units
2 to 49 units
2 to 53 units
2 to 58 units
2 to 61 units
2 to 65 units
2 to 69 units
Connectable capacity
(2)
252 ~ 806
280 ~ 896
308 ~ 984
340 ~ 1088
368 ~ 1176
400 ~ 1280
425 ~ 1360
450 ~ 1440
477 ~ 1526
Item
Model

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'09•KX-T-139
Capacity 22 28 36 45 56 71 90 112 140 224160 280
Model
Ceiling cassette-4 way compact type
(FDTC)
Ceiling cassette-1 way type
(FDTS)
Ceiling cassette-2 way type
(FDTW)
Ceiling cassette-1 way compact type
(FDTQ)
Duct connected (Ultra thin)-Low static preessure type
(FDQS)
Wall-mounted type
(FDK)
Ceiling suspen ded type
(FDE)
Duct connected-High static pressure type
(FDU)
Floor standing (with casing) type
(FDFL)
Floor standing (without casing) type
(FDFU)
Floor standing-2 way type
(FDFW)
Duct connected-compact and Flexible type
(FDUH)
Ceiling cassette-4 way type
(FDT)
Duct connected-Middle static preessure type
(FDUM)
FDCH335CKXE6G-K, FDCH400CKXE6G ~ 560CKXE6G
FDCH560CKXE6G-K, FDCH615CKXE6G
~
1360CKXE6G
Outdoor units to be combined
(FDC)
1.3 Table of models
1.4 Table of indoor units panel (Option)
Model Parts Model
T-PSA-36W-EFDT Capacity:28,36,45,56,71,
90,112,140,160
Capacity:22,28,36
Capacity:22,28,36
Capacity:28,45,56
Capacity:71,90
Capacity:112,140
Capacity: 45
Capacity:71
TW-PSA-24W-E
TW-PSA-34W-E
TW-PSA-44W-E
TQ-PSA-15W-E
TQ-PSB-15W-E
QR-PNA-14W-ER
QR-PNB-14W-ER
TS-PSA-29W-E
TS-PSA-39W-E
FDTS
FDTW
FDTQ
(Duct panel)
FDTQ
(Direct blow panel)
TC-PSA-25W-EFDTC Capacity:22,28,36,45,56
1.2 How to read the model name
Example: FDCH 400 C KX E 6G
Series code.
Application power source. (See the specications)
Multi KX series
Cooling only type
Nominal capacity (nominal cooling capacity : 40.0kW)
Model name (Outdoor unit)

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'09•KX-T-139
FDCH735CKXE6G
FDCH800CKXE6G
FDCH850CKXE6G
FDCH900CKXE6G
FDCH960CKXE6G
Item
Models
368 ~ 1176
400 ~ 1280
425 ~ 1360
450 ~ 1440
477 ~ 1526
2 to 53 unit
2 to 58 unit
2 to 61 unit
2 to 65 unit
2 to 69 unit
1
_
_
_
_
1
2
1
_
_
_
_
1
2
1
_
_
_
_
1
FDCH335
CKXE6G-K
FDCH400
CKXE6G
FDCH450
CKXE6G
FDCH504
CKXE6G
Connectable (1)
capacity
Number of
connectable units
Combination outdoor unit models Indoor unit
FDCH1010CKXE6G
FDCH1065CKXE6G
FDCH1130CKXE6G
FDCH1180CKXE6G
FDCH1235CKXE6G
FDCH1300CKXE6G
FDCH1360CKXE6G
Item
Models
504 ~ 1311
532 ~ 1384
560 ~ 1456
588 ~ 1528
615 ~ 1599
650 ~ 1690
680 ~ 1768
2 to 59 unit
2 to 62 unit
2 to 66 unit
3 to 69 unit
3 to 72 unit
3 to 76 unit
3 to 80 unit
2
1
_
_
_
_
_
FDCH504
CKXE6G
_
1
2
_
_
_
_
FDCH560
CKXE6G
_
_
_
1
_
_
_
FDCH560
CKXE6G-K
_
_
_
_
_
1
2
_
_
_
1
2
1
_
FDCH615
CKXE6G
FDCH680
CKXE6G
Connectable
capacity
Number of
connectable units
Combination outdoor unit models Indoor unit
Outdoor unit
For two units (for FDCH 735CKXE6G ~ 1360CKXE6G)
Branch pipe set
DOS-2A-1
Total capacity downstream
Less than 180
180 or more but less than 371
371 or more but less than 540
540 or more
Branching pipe set
DIS-22-1
DIS-180-1
DIS-371-1
DIS-540-2
Total capacity downstream
Less than 180
180 or more but less than 371
371 or more but less than 540
540 or more
Header set model type
HEAD4-22-1
HEAD6-180-1
HEAD8-371-1
HEAD8-540-2
Number of branches
4 branches at the most
6 branches at the most
8 branches at the most
8 branches at the most
1.5 Outdoor units combination table
(a) Models FDCH735, 800, 850, 900CKXE6G
Note (1) When connecting the indoor unit type FDK, FDFL, FDFU or FDFW Series, limit the connectable capacity not higher than
130%.
Note (1) Be sure to use this when combining units.
(b) Models FDCH960, 1010, 1065, 1130, 1180, 1235, 1300, 1360CKXE6G
(c) Outdoor unit side branch pipe set (Option)
(d) Branch pipe set (Option)
(e) Header pipe set (Option)

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'09•KX-T-139
󱦱OUTDOOR UNIT 2.1 Specifications
• Single use (Used also for combination)
Power factor
%
94 㧛 94 93
㧛 93 93
㧛 93 93
㧛 93 93
㧛 93 93 㧛 93 94
㧛 94 94 㧛 94
External static pressure Pa Max 50
PCB003Z138 a

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'09•KX-T-139
Power factor %93
㧛 93 93
㧛 93 93
㧛 93 93
㧛 93 93
㧛 93 93 㧛 93
Power factor %93
㧛 93 93 㧛 93 93 㧛 93 94 㧛 94 94 㧛 94 94 㧛 94
• Combination use
PCB003Z138 a

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'09•KX-T-139
2.2 Exterior dimensions Models FDCH335CKXE6G-K, 400CKXE6G, 450CKXE6G
PCB003Z141

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'09•KX-T-139
Models FDCH504CKXE6G, 560CKXE6G, 560CKXE6G-K, 615CKXE6G, 680CKXE6G
PCB003Z142

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'09•KX-T-139
2.3 Electrical wiring Models All model
PCB003Z139

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'09•KX-T-139
Model FDCH335CKXE6G-K
Noise level 59 dB (A)
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 FDCH400CKXE6G
Noise level 59.5 dB (A)
Noise level 63 dB (A)
Model FDCH615CKXE6G
Noise level 64.5 dB (A)
Models FDCH560CKXE6G
560CKXE6G-K
Model FDCH680CKXE6G
Noise level 65 dB (A)
Souud Pressure Level
(standard 2 x 10-5pa)
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
Souud Pressure Level
(standard 2 x 10-5pa)
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
Souud Pressure Level
(standard 2 x 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
Model FDCH504CKXE6G
Noise level 61.5 dB (A)
Souud Pressure Level
(standard 2 x 10-5pa)
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
Model FDCH450CKXE6G
Noise level 62.5 dB (A)
Souud Pressure Level
(standard 2 x 10-5pa)
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
Souud Pressure Level
(standard 2 x 10-5pa)
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
Souud Pressure Level
(standard 2 x 10-5pa)
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

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'09•KX-T-139
󱦳PIPING SYSTEM Models All model
Notes (1) Preset point of protective deviees
63H1-1 : Open 4.15MPa, Close 3.15MPa
(For protection)
(2) Function of thermistor
PSH : For compressor control
Cooling: 3.70 ON (MPa)
PSL : ON 0.18MPa, OFF 0.20MPa
(For compressor control)
ON 0.134MPa, OFF 0.18MPa
(For protection)
ThI-R1, R2 : Cooling operation : Frost prevention control.
Super heat control.
ThI-R3 : For super heat control of cooling operation.
Tho-D : For control of discharge pipe temperature.
Tho-C : For control of temperarure under the dome.
Tho-S : For control of suction pipe temperature.
Tho-SC : Electronic expansion valve (EEVSC) control of cooling operation.
Tho-H : For super heat control of sub-cooling coil.
PCB003Z140

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'09•KX-T-139
󱦵RANGE OF USAGE & LIMITATIONS
• Single use (also for combined use)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
First branch
50~100m
MAX. 90m
MAX. 90m
MAX. 90m
MAX. 18m
MAX.
130m
50~100m
MAX. 130m
MAX. 18m
MAX. 18m MAX. 18m
MAX. 18m
MAX. 18m
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
First branch
(Header)
denotes
System FDCH450CKXE6G FDCH504CKXE6G
Refer to page 15
1 to 40 unit 1 to 36 unit
1 to 36 unit
Item
Indoor 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
(2)
Main pipe length
1000m 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
50 ~100m
(3)
Prohibited activity
18m 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)
FDCH400CKXE6G
200 ~ 800 225 ~ 900 252 ~ 806
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
Note (1) When connecting the indoor unit type FDK, FDFL, FDFU or FDFW (not yet) Series, limit the connectable capacity not higher than 130%.
(2) When the pipe extension length exceeds 510 m, additional refrigerant oil must be charged (1,000 cc).
 
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
First branch
50~100m (3)
50~100m (3)
MAX. 90m
(2)
MAX. 40m
(2)
MAX. 90m
MAX. 90m
(2)
MAX. 18m
MAX.
130m
MAX. 130m
MAX. 18m
MAX. 18m
MAX. 40m
(2)
MAX. 18m
MAX. 18m
MAX. 18m
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
First branch
(Header)
denotes
System FDCH615CKXE6G FDCH680CKXE6G
Refer to page15
2 to 44 unit 2 to 49 unit
1 to 40 unit
Item
Indoor 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
(2)
Main pipe length
1000m 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
50~100m
(3)
Prohibited activity
18m 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)
FDCH560CKXE6G
280 ~ 896 308 ~ 984 340 ~ 1088
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

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Allowable length of refrigerant piping, height difference between indoor and outdoor unit
(1) Branch pipe System (Branch piping used)
(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)
 
Important
When the Additional refrigerant quantity for piping (P) is over the following table, please separate the refrigerant line.
Outdoor unit P (kg)
400-680 50
(3) Mixed System (Branch piping and Header used)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
First branch
50~100m (3)
50~100m (3)
MAX. 90m
(2)
MAX. 40m
(2)
MAX. 90m
MAX. 90m
(2)
MAX. 18m
MAX.
130m
MAX. 130m
MAX. 18m
MAX. 18m
MAX. 40m
(2)
MAX. 18m
MAX. 18m
MAX. 18m
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
First branch
(Header)
denotes
System FDCH615CKXE6G FDCH680CKXE6G
Refer to page15
2 to 44 unit 2 to 49 unit
1 to 40 unit
Item
Indoor 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
(2)
Main pipe length
1000m 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
50~100m
(3)
Prohibited activity
18m 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)
FDCH560CKXE6G
280 ~ 896 308 ~ 984 340 ~ 1088
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
(Highest indoor unit)
(Lowest indoor unit)
MAX.90m(2)
MAX.90m(2)
MAX.130m
(Header)
First branch
MAX.18m
MAX.18m
MAX.18m
Indoor unit
Ⅱ
Outdoor unit
Ⅵ
Ⅴ
Ⅳ
Ⅲ
Ⅰ
MAX.40m(2)
50~100m (3)

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'09•KX-T-139
Indoor unit
Indoor unitOutdoor unit
Outdoor unit
First branch
(DOS-2A-1)
(DOS-2A-1)
Outdoor unit
side branch
Oil equalization
piping
Oil equalization
piping
50~100m
MAX. 90m
MAX. 90m
MAX. 90m
MAX. 18m
MAX. 130m
MAX. 5m
MAX. 0.4m
MAX. 10m
MAX. 5m
Outdoor
unit 1
Outdoor
unit 2
MAX. 18m
MAX. 18mMAX. 18m
50~100m
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
(Header)
denotes
MAX. 5m
First branch
Note (1) A branch piping system cannot be connected after a header system.
Outdoor unit
side branch
MAX. 130m
MAX. 5m
MAX. 0.4m
MAX. 10m
Outdoor
unit 1
Outdoor
unit 2
MAX. 18mMAX. 18m
System FDCH800CKXE6G FDCH900CKXE6G
Refer to page 15
2 to 58 units 2 to 65 units2 to 53 units
Item
Indoor air temperature
(Upper, lower limits)
Outdoor air temperature
(Upper, lower limits)
Single direction piping length Actual length : 160m or less, Equival length : 185m or less
Total piping length (2)
Main pipe length
1000m 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
50~100m
(3)
Prohibited activity
18m 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)
FDCH735CKXE6G
368 ~ 1176 400 ~ 1280 450 ~ 1440
FDCH850CKXE6G
2 to 61 units
425 ~ 1360
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
Difference in height between outdoor units
(Same system)
Difference between an outdoor unit and
on outdoor unit side branch pipe
Length of oil equalization piping
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 10% of rated voltage
Within 15% of rated voltage
Within 3% of rated voltage
MAX. 0.4m
MAX. 5m
MAX. 10m
• Combination use
Note (1) A branch piping system cannot be connected after a header system.
Indoor unit
Indoor unitOutdoor unit
Outdoor unit
First branch
(DOS-2A-1)
(DOS-2A-1)
Outdoor unit
side branch
Oil equalization
piping
Oil equalization
piping
50~100m
(3)
50~100m
(3)
MAX. 90m (2) MAX.
40m (2)
MAX. 90m
MAX. 90m (2)
MAX. 18m
MAX. 130m
MAX. 5m
MAX.
0.4m
MAX. 10m
MAX. 5m
Outdoor
unit 1
Outdoor
unit 2
MAX. 18m
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
(Header)
denotes
MAX. 5m
First branch
Outdoor unit
side branch
MAX. 130m
MAX. 5m
MAX.
0.4m
MAX. 10m
Outdoor
unit 1
Outdoor
unit 2
MAX. 18m
MAX. 40m (2)
MAX. 18m
MAX. 18m MAX. 18m
System FDCH1065
CKXE6G
FDCH1130
CKXE6G
FDCH1300
CKXE6G
FDCH1360
CKXE6G
Refer to page15
2 to 66
units
3 to 76
units
3 to 80
units
2 to 69
(1)
units
2 to 59
units
2 to 62
units
Item
Indoor air temperature (Upper, lower limits)
Outdoor air temperature (Upper, lower limits)
Single direction piping length Actual length : 160m or less, Equival length : 185m or less
Total piping length
(2)
Main pipe length
1000m 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
50~100m
(3)
Prohibited activity
18m 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
FDCH960
CKXE6G
FDCH1010
CKXE6G
477 ~ 1526 504 ~ 1311 532 ~ 1384 560 ~ 1456 650 ~ 1690 680 ~ 1768
FDCH1235
CKXE6G
FDCH1180
CKXE6G
3 to 69
units
3 to 72
units
588 ~ 1528 615 ~ 1599
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
Difference in height between outdoor units
(Same system)
Difference between an outdoor unit and
on outdoor unit side branch pipe
Length of oil equalization piping
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 10% of rated voltage
Within 15% of rated voltage
Within 3% of rated voltage
MAX. 0.4m
MAX. 5m
MAX. 10m
Note (1) When connecting the indoor unit type FDK, FDFL, FDFU or FDFW (not yet) Series, limit the connectable capacity not higher than 130%.
(2) When the pipe extension length exceeds 510 m, additional refrigerant oil must be charged (1,000 cc).



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14
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'09•KX-T-139
Note (1) A branch piping system cannot be connected after a header system.
Indoor unit
Indoor unitOutdoor unit
Outdoor unit
First branch
(DOS-2A-1)
(DOS-2A-1)
Outdoor unit
side branch
Oil equalization
piping
Oil equalization
piping
50~100m
(3)
50~100m
(3)
MAX. 90m (2) MAX.
40m (2)
MAX. 90m
MAX. 90m (2)
MAX. 18m
MAX. 130m
MAX. 5m
MAX.
0.4m
MAX. 10m
MAX. 5m
Outdoor
unit 1
Outdoor
unit 2
MAX. 18m
(Lowest indoor unit)
(Highest indoor unit)
(Highest indoor unit)
(Lowest indoor unit)
(Header)
denotes
MAX. 5m
First branch
Outdoor unit
side branch
MAX. 130m
MAX. 5m
MAX.
0.4m
MAX. 10m
Outdoor
unit 1
Outdoor
unit 2
MAX. 18m
MAX. 40m (2)
MAX. 18m
MAX. 18m MAX. 18m
System FDCH1065
CKXE6G
FDCH1130
CKXE6G
FDCH1300
CKXE6G
FDCH1360
CKXE6G
Refer to page15
2 to 66
units
3 to 76
units
3 to 80
units
2 to 69
(1)
units
2 to 59
units
2 to 62
units
Item
Indoor air temperature (Upper, lower limits)
Outdoor air temperature (Upper, lower limits)
Single direction piping length Actual length : 160m or less, Equival length : 185m or less
Total piping length
(2)
Main pipe length
1000m 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
50~100m
(3)
Prohibited activity
18m 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
FDCH960
CKXE6G
FDCH1010
CKXE6G
477 ~ 1526 504 ~ 1311 532 ~ 1384 560 ~ 1456 650 ~ 1690 680 ~ 1768
FDCH1235
CKXE6G
FDCH1180
CKXE6G
3 to 69
units
3 to 72
units
588 ~ 1528 615 ~ 1599
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
Difference in height between outdoor units
(Same system)
Difference between an outdoor unit and
on outdoor unit side branch pipe
Length of oil equalization piping
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 10% of rated voltage
Within 15% of rated voltage
Within 3% of rated voltage
MAX. 0.4m
MAX. 5m
MAX. 10m
Allowable length of refrigerant piping, height difference between indoor and outdoor unit
(1) Branch pipe System (Branch piping used)
(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)

Important
When the Additional refrigerant quantity for piping (P) is over the following table, please separate the refrigerant line.
Outdoor unit P (kg)
735-1360 100
(3) Mixed System (Branch piping and Header used)
(Highest indoor unit)
(Lowest indoor unit)
MAX.90m(2)
MAX.90m(2)
(Header)
MAX.18m
MAX.18m
MAX.18m
Ⅱ
Ⅵ
Ⅴ
Ⅳ
Ⅲ
Ⅰ
MAX.40m(2)
Outdoor unit
First branch
(DOS-2A-1)
Outdoor unit
side branch
Oil equalization
piping
MAX. 130m
MAX. 5m
MAX. 0.4m
MAX. 10m
MAX. 5m
Outdoor
unit 1
Outdoor
unit 2
Indoor unit
50~100m (3)

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15
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'09•KX-T-139
14 16 18 20 22
43
40
35
30
25
20
0
-5
26
24
Indoor air temperature (˚C W.B.)
Applicable range
Outdoor air temperature (˚C D.B.)
Cooling operation
Operating temperature range

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16
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'09•KX-T-139
󱦷SELECTION CHART
(1) Equipment selection flow
Indoor unit
capacity (tentative)
Indoor Load
Total indoor unit
capacity System Capacity
YES
YES
YES
NO
NO
NO
Select an indoor unit that matches the indoor load (tentative).
Calculate the total indoor unit capacity.
Indoor unit
capacity Indoor Load
Equipment selection complete.
Change the outdoor unit.
Calculate the temperature compensation,
then calculate the indoor unit capacity.
(See item (2) (a) for the calculation method.)
Calculate temperature compensation and piping
compensation, etc., then calculate the outdoor unit
capacity. (See item (2) (b) for the calculation method.)
Select the outdoor unit (tentative).
Calculate the system capacity
(See item (2) (c) for the calculation method.)
Calculate the indoor unit capacity.
(See item (2) (d) for the calculation method.)
Calculate the load for each room separately, then determine the indoor load.
Change the indoor unit.

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17
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'09•KX-T-139
(2) Capacity calculation method
(a) Calculating the indoor unit capacity compensation
Indoor unit capacity
= Indoor unit total rated capacity
×Capacity compensation coefficient according to temperature conditions
See item (3) (a) concerning the capacity compensation coefficient according to temperature conditions.
(b) Calculating the outdoor unit capacity compensation
Outdoor Unit Capacity
= Outdoor unit rated capacity (rated capacity when 100% connected)
×Capacity compensation coefficient according to temperature conditions
×Capacity compensation coefficient according to piping length
× Capacity compensation coefcient according to indoor unit connection capacity
See item (3) (a) concerning the capacity compensation coefficient according to temperature conditions.
See item (3) (b) concerning the capacity compensation coefficient according to piping length.
See item (3) (c) concerning the capacity compensation coefficient according to indoor unit connected capacity.
This compensation should be carried out only in cases where the indoor unit total capacity is 100% or higher.
(c) Calculating system capacity
Compare the capacities determined in items (a) and (b) above and let the smaller value be the system capacity.
In cases where indoor unit total capacity > outdoor unit capacity
System capacity = Outdoor unit capacity
In cases where indoor unit total capacity < outdoor unit capacity
System capacity = Indoor unit capacity
(d) Calculating indoor unit capacity [item (c) 1 only]
Indoor unit capacity = System capacity ×[(Indoor unit capacity) / (Indoor unit total capacity)]

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'09•KX-T-139
Capacity calculation example
Example
Cooling (when the indoor unit connected total capacity is 100% or higher)
• Outdoor unit FDCH450CKXE6G............................................... 1 Unit
• Indoor unit FDT56KXE6A ......................................................... 10 Units
• Piping length .............................................................................. 100 m (Equivalent length)
• Indoor, outdoor unit height difference ........................................ 70 m (Outdoor unit is higher)
• Temperature conditions .............................................................. Outdoor temperature: 35˚C DB
• Temperature conditions ............................................................... Indoor temperature: 18˚C WB
<Indoor unit total cooling capacity>: Item (2) (a) calculation.
• Indoor unit rated cooling capacity: 5.6 kW
• Capacity compensation coefficient according to temperature conditions:
0.95 (Calculated according to Indoor 18˚C WB / Outdoor 35˚C DB); (See page 19)
Indoor unit cooling capacity: 5.6 kW ×0.95 . =
.5.3 kW
• Indoor unit total cooling capacity calculation;
indoor unit total cooling capacity: 5.3 kW ×10 units . =
.53.0 kW
<Outdoor unit maximum cooling capacity> : Item (2) (b) calculation
• Outdoor unit rated cooling capacity: 45.0 kW
• Capacity compensation coefficient according to temperature conditions:
0.95 (Calculated according to Indoor 18˚C WB / Outdoor 35˚C DB); (See page 19)
Outdoor unit cooling capacity: 45.0 kW ×0.95 . =
.42.8 kW
• Capacity compensation coefficient according to piping length: 0.95 (calculated according to 100 m length); (See page 20)
42.8 kW ×0.95 . =
.40.7 kW
• Capacity compensation coefficient according to indoor unit connected total capacity: 1.05 (56 ×10) / 450 . =
.124%) (See page 23)
40.7 kW ×1.05 . =
.42.7 kW
<System cooling capacity>: Item (2) (c) calculation
Compare the indoor unit total cooling capacity and the outdoor unit maximum cooling capacity. The smaller value is the actual
system cooling capacity.
• Indoor unit total cooling capacity : 53.0 kW
• Outdoor unit maximum cooling capacity : 42.7 kW
󰻯System cooling capacity: 42.7 kW
<Indoor unit cooling capacity Compensation>: Item (2) (d) calculation.
42.7 kW ×5.3 kW
4.3 kW
53.0 kW
.
=
.