Mitsubishi Heavy Industries FDC112KXEN6 User manual

INVERTER DRIVEN MULTI-INDOOR UNIT
CLIMATE CONTROL SYSTEM
Alternative refrigerant R410A use models
(OUTDOOR UNIT)
Manual No. '08
• KX-T-117
KX6 series
FDC112KXEN6, 140KXEN6, 155KXEN6 (1 phase)
FDC112KXES6, 140KXES6, 155KXES6 (3 phase)
FDT28KXE6
36KXE6
45KXE6
56KXE6
71KXE6
90KXE6
112KXE6
140KXE6
160KXE6
FDUM22KXE6
28KXE6
36KXE6
45KXE6
56KXE6
71KXE6
90KXE6
112KXE6
140KXE6
FDTC22KXE6
28KXE6
36KXE6
45KXE6
56KXE6
FDQS22KXE6
28KXE6
36KXE6
45KXE6
56KXE6
FDU71KXE6
90KXE6
112KXE6
140KXE6
FDFU28KXE6
45KXE6
56KXE6
71KXE6
FDTW28KXE6
45KXE6
56KXE6
71KXE6
90KXE6
112KXE6
140KXE6
FDK22KXE6
28KXE6
36KXE6
45KXE6
56KXE6
FDTQ22KXE6
28KXE6
36KXE6
FDFL28KXE6
45KXE6
71KXE6
FDTS45KXE6
71KXE6
FDE36KXE6
45KXE6
56KXE6
71KXE6
112KXE6
140KXE6
(INDOOR UNIT) - KX6 series -
(Heat pump type)
INVERTER DRIVEN MULTI-INDOOR-UNIT
CLIMATE CONTROL SYSTEM
Air-Conditioning & Refrigeration Systems Headquarters
16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan
Fax : [phone]
No.106(0.55A) R

KX4-6 series, KXR4-6 series allowed Indoor & Outdoor unit combinations
Combination table
Outdoor unit
FDCA-HKXE4 5HP
FDCA-HKXE4 8-48HP
FDCA-HKXE4A 5,6HP
FDCA-HKXE4R 5,6HP
FDCA-HKXE4A 8-48HP
FDCA-HKXE4R 8-48HP
FDCA-HKXE4BR 8-48HP
FDC-HKXEN/S6 4,5,6 HP
FDC-HKXE6 8-12HP
FDC-HKXE4 14-48HP
FDCA-HKXRE4 8-48HP
FDCA-HKXRE4A 8-48HP
FDCA-HKXRE4R 8-48HP
FDCA-HKXRE4BR 8-48HP
FDC-HKXRE6 8-48HP
(2004.4-) [Note (4)]
(2004.4-)
(2006.2-)
(2006.5-)
(2006.2-)
(2006.5-)
(2007.4-)
(2008.3-)
(not yet)
(not yet)
(2004.11-)
(2006.2-)
(2006.6-)
(2007.4-)
(not yet)
YES [C]
NO
NO
NO
NO
NO
NO
NO
NO
NO
Note (1) YES: Connectable (See following table in detail), NO: Not connectable
Same series Mixed series
YES [A]*
YES [B]
YES [C]
KXE6
KXE4 series
KXE4 series
KXE6 &
KXE4 series
KXE4 series
@(New)
!(Previous)
New (for KX6)
Old (for KX4)
Old (for KX4)
New (for KX6)
Old (for KX4)
Old (for KX4)
(2) Combination with new centralised controller and BMS series
SL1N-E
(3) The compatibility of PFD refrigerant flow branch controller is mentioned in following table.
KXE4 & KXE5
series KXE6 series
Old one only
PFD-E
PFD-ER
New one only
(Not yet)
New one only
(Not yet)
Old one only
PFD-E
PFD-ER
(4) ( ) Date of launching in the market
Outdoor unit
Indoor unit
Connectable PFD controller
KXE4 SERIES
Connectable
I/U
KXE6 SERIES
Outdoor
unit
KXE6
KXE4 series
YES [B]
&
YES [C]
YES [A]
Connecgtable
remote controller
Same series
3-wire type
RC-E1R
RC-E1R
2-wire type
RC-E1 KXE4
(2004.4-)
YES [C]
YES [C]
YES [C]
YES [C]
NO
NO
NO
NO
NO
NO
Same series
KXE4(A)
(2004.6-)
YES [C]
YES [C]
YES [C]
YES [C]
NO
NO
NO
YES [C]
YES [C]
NO
Same series
KXE4A
(2004.11-)
NO
NO
YES [C]
YES [C]
NO
NO
NO
NO
YES [C]
NO
Mixed series
KXE4A
(2004.11-)
NO
NO
NO
YES [C]
NO
NO
NO
NO
YES [C]
NO
Mixed series
KXE4A
(2004.11-)
KXE6
(2008.3-)
KXE6
(2008.3-)
KXE6
(2008.3-)
KXE6
(2008.3-)
KXE4R
(2006.3-)
KXE4BR
(2007.4-)
KXE5R
(2007.4-)
KXE4R
(2006.3-)
KXE4BR
(2007.4-)
KXE5R
(2007.4-)
KXE4R
(2006.3-)
KXE4BR
(2007.4-)
KXE5R
(2007.4-)
KXE4R
(2006.3-)
KXE4BR
(2007.4-)
KXE5R
(2007.4-)
NO
NO
NO
YES [C]
NO
NO
NO
NO
YES [C]
NO
Mixed series
KXE4A
(2004.11-)
NO
NO
YES [C]
YES [C]
NO
YES [B]
YES [B]
NO
YES [C]
YES [B]
Same or
Mixed serie
NO
NO
NO
YES [C]
NO
YES [B]
YES [B]
NO
YES [C]
YES [B]
Mixed series
NO
NO
NO
YES [C]
YES [A]
YES [A]
YES [A]
NO
YES [C]
YES [A]
Same series
Heat pump
(2-pipe)
systems
Heat
recovery
(3-pipe)
systems
[ Note(3) ]
Centralized Controller and BMS series
Limitation
Connected Indoor unit
PREFACE
Dip switch
setting of
outdoor
unit KXE6
Superlink
Protocol
16
Superlink
protocol
New
Connectable
network
1
Connectable
I/U
16
Superlink
protocol
Old
Connectable
I/U
1
Applicable
Old BMS
SLA1-E
SL2N-E
64
New
1
48
Old
1
SLA2-E
SL3N-AE/BE
128
(64⳯2)
144
(48⳯2)
New
1
Old
3
SLA3-E/B3-E
128
(64⳯2)
128
(48⳯2)
New
2
Old
2
Old WGW
(SC-WGW-A)
Old LGW
(SC-LGW-A)
Old BGW
(SC-BGW-A)
128
(64⳯2)
98
(48⳯2)
New
2
Old
2
128
(64⳯2)
98
(48⳯2)
New
2
Old
2
New WGW New LGW New BGW
Indoor unit
Category
* If Outdoor unit system (YES [A]) is connected to other outdoor unit systems (YES [B] and/or YES
[C]) in one superlink system, the dip switch of outdoor unit KXE6 of (YES [A]) should be set from
@(New) to !(Previous).
In this case the superlink protocol and limitation of outdoor unit system (YES [A]) is switched to Old
(for KX4).

CONTENTS
1 GENERAL INFORMATION................................................................................ 1
1.1 Specific features ........................................................................................... 1
1.2 How to read the model name ........................................................................ 2
1.3 Table of models ............................................................................................. 3
1.4 Table of indoor units panel (Optional) ........................................................... 3
1.5 Outdoor units combination table ................................................................... 3
2 OUTDOOR UNIT ............................................................................................... 4
2.1 Specifications ................................................................................................ 4
2.2 Exterior dimensions ...................................................................................... 6
2.3 Electrical wiring ............................................................................................. 7
2.4 Noise level .................................................................................................... 9
3 INDOOR UNIT ................................................................................................. 10
3.1 Specifications .............................................................................................. 10
(a) Ceiling cassette-4 way type (FDT) ...................................................... 10
(b) Ceiling cassette-4 way compact type (FDTC) ..................................... 13
(c) Ceiling cassette-2 way type (FDTW) ................................................... 15
(d) Ceiling cassette-1 way type (FDTS) .................................................... 18
(e) Ceiling cassette-1 way compact type (FDTQ) ..................................... 19
(f) Duct connected-High static pressure type (FDU) ................................ 22
(g) Duct connected-Low/Middle static pressure type (FDUM) .................. 24
(h) Duct connected (Ultra thin)-Low static pressure type (FDQS) ............ 28
(i) Wall mounted type (FDK) .................................................................... 30
(j) Ceiling suspended type (FDE)............................................................. 32
(k) Floor standing (with casing) type (FDFL) ............................................ 35
(l) Floor standing (without casing) type (FDFU) ....................................... 36
3.2 Exterior dimensions .................................................................................... 37
3.3 Electrical wiring ........................................................................................... 63
3.4 Exterior appearance ................................................................................... 82
3.5 Characteristics of fan .................................................................................. 85
3.6 Noise level .................................................................................................. 92
4 COMMON INFORMATION .............................................................................. 98
4.1 Operation chart ........................................................................................... 98
4.2 Range of usage & limitations .................................................................... 102
4.3 Piping system ........................................................................................... 104
4.4 Selection chart .......................................................................................... 105

4.5 Application data ........................................................................................ 170
(1) Installation of indoor unit ...................................................................... 171
(a) Ceiling cassette-4 way type (FDT) .................................................... 171
(b) Ceiling cassette-4 way compact type (FDTC) ................................... 179
(c) Ceiling cassette-2 way type (FDTW) ................................................. 184
(d) Ceiling cassette-1 way type (FDTS) .................................................. 189
(e) Ceiling cassette-1 way compact type (FDTQ) ................................... 195
(f) Duct connected-High static pressure type (FDU) .............................. 203
(g) Duct connected-Low/Middle static pressure type (FDUM) ................ 211
(h) Duct connected (Ultra thin)-Low static pressure type (FDQS) .......... 218
(i) Ceiling suspended type (FDE)........................................................... 222
(j) Wall mounted type (FDK) .................................................................. 226
(k) Floor standing (with casing) type (FDFL) .......................................... 231
(l) Floor standing (without casing) type (FDFU) ..................................... 234
(2) Installation of remote controller (Option parts) ..................................... 237
(3) Installation of outdoor unit .................................................................... 238
(4) Refrigerant piping ................................................................................. 240
(5) Electric wiring work............................................................................... 251
(6) Controller settings ................................................................................ 254
(7) Test operation ....................................................................................... 263
(8) Cautions for servicing (for R410A and compatible machines).............. 264
(9) Setting function with the remote controller ........................................... 264
(10) Notabilia as a unit designed for R410A .............................................. 275
4.6 Outline of operation control by microcomputer ......................................... 276
(1) Wired remote controller (Optional parts) .............................................. 276
(2) Operation control function by the indoor controller............................... 277
(3) Operation control function by the remote controller ............................. 284
(4) Operation control function by the outdoor controller............................. 285
4.7 System troubleshooting procedure ........................................................... 314
(1) Basics of troubleshooting ..................................................................... 314
(2) Explanation of troubleshooting ............................................................. 315
(3) Contents of troubleshooting.................................................................. 316
(4) Replacement of PCB at outdoor unit side ............................................ 365
5 WIRELESS KIT (Optional parts) .................................................................. 369

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1
-
1 GENERAL INFORMATION
1.1 Specific features
(1) High Efficiency
(a) Industry leading energy efficiency
• COP across the KX6 range ensures reduced running costs and reduced environmental impact.
• Coefficient of Performance=Cooling Capacity[kw]/Power Consumption[kw]
(b) New Inverter Control (Vector control)
New Inverter Control has applied new advanced technology of Vector control and has realized high efficiency.
• Smooth operation from low speed to high speed
• Smooth Sine Voltage Wave form are attained
• Energy efficiency is futher improved in low speed range
(c) Optimum Refrigerant System Control
We have improved refrigeration circuit from our long experience and have realized following Optimum Refrigerant System
Control.
• Optimum heat exchanger refrigerant distribution
• Advanced refrigerant liquid return protection control system
• High speed system control by new Superlink system
(d) DC Fan Motor
Employment of DC fan motor has enabled to realize an excellent efficiency of approximate 60% higher than previous
models.
(2) Compact Design
(a) Compact high efficiency Heat Exchanger
• Optimizing relationship of the air flow velocity & fin pattern
• Improvement of air distribution Maximizing efficiency of heat exchanger
(b) Compact Integrated PCB
• Control Box size reduction
• PCB size reduced by 50%
Control PCB: Single-sided board aDouble-sided board
Inverter PCB: Power transistor size reduction
• New Superlink system control
• New Design method applid
(3) Design Flexibility
(a) Increased indoor unit connection capacity
KX6 Ultra Compact series can connect indoor unit capacity up to 150% from 130% of previous models.
• Capacity from 80% to 150% is possible
(4) Serviceability
(a) Monitoring function
KX6 Ultra Compact series includes new feature to assist with servicing and trouble shooting. Various data can be monitored
through 3-degit display on the outdoor unit PCB.
(b) New remote control for all indoor units
Applying nonpolar 2-core in new remote control line, it is very convenient for installation including renewal case.
(c) Max length of electrical wiring
The wiring must be a 2-core shielded cable size 0.75mm2to 1.25mm2.
The max length of 2-core can be 1500m from 1000m of previous models.
FDC112KXEN6
FDC112KXES6
FDC140KXEN6
FDC140KXES6
FDC160KXEN6
FDC160KXES6
Number of connectable
1 to 6 units
1 to 8 units
Connectable capacity
90 ~ 168
112 ~ 210
124 ~ 233
Item
Model

-
2
-
1.2 How to read the model name
(1) Outdoor unit
Example:
FDC 140 KX EN 6
Series No.
Application power source...See the specifications
Multi KX
Nominal capacity (nominal cooling capacity : 14.0kW)
Model name (Outdoor unit)
(2) Indoor unit
Example:
FDT 28 KX E 6
Series No.
Application power source...See the specifications
Multi series
Nominal capacity (nominal cooling capacity : 2.8 kW)
Model name Indoor unit : FDTC, FDT, FDTW, FDTQ,
FDTS, FDU, FDUM,
FDQS, FDE, FDK, FDFL,
FDFU
Note
For outdoor unit, EN60552-2 and EN60555-3 are not applicable as consent by the utility company or notification to the utility
company is given before usage.

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3
-
Capacity 22 28 36 45 56 71 90 112 140 160
Model
Outdoor units to be combined
FDC
FDC112KXEN6, 140KXEN6, 155KXEN6
FDC112KXES6, 140KXES6, 155KXES6
Ceiling cassette-4 way type
(FDT)
Ceiling cassette-4 way compact type
(FDTC)
Ceiling cassette-2 way type
(FDTW)
Ceiling cassette-1 way type
(FDTS)
Ceiling cassette-1 way compact type
(FDTQ)
Duct connected-High static pressure type
(FDU)
Duct connected-Low/Middle static pressure type
(FDUM)
Duct connected (Ultra thin)-Low static pressure type
(FDQS)
Wall mounted type
(FDK)
Ceiling suspended type
(FDE)
Floor standing (with casing) type
(FDFL)
Floor standing (without casing) type
(FDFU)
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1.3 Table of models
1.4 Table of indoor units panel (Optional)
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-24W-ERFDTC Capacity:22,28,36,45,56
1.5 Outdoor units combination table
Total capacity downstream
Less than 180
180 or more but less than 371
Branching pipe set
DIS-22-1
DIS-180-1
Total capacity downstream
Less than 180
180 or more but less than 371
Header set model type
HEAD4-22-1
HEAD6-180-1
Number of branches
4 branches at the most
6 branches at the most
(a) Branch pipe set (Optional)
(b) Header pipe set (Optional)

-
4
-
Item
kW
kW
kg
dB(A)
%
kW
W
kg
W
CMM 75/8275/75
mm(in)
mm
Model FDC112KXEN6
14.0
16.0
11.2
12.5
15.5
16.3
52/54 53/56
FDC140KXEN6 FDC155KXEN6
1 Phase 220-240V 50Hz/220V 60Hz
Direct line starting
Direct line start
Flare piping
FDT28, 36, 45, 56, 71, 90, 112, 140, 160KXE6
FDTC22, 28, 36, 45, 56KXE6
FDTW28, 45, 56, 71, 90, 112, 140KXE6
FDTS45, 71KXE6
FDQS22, 28, 36, 45, 56KXE6
FDTQ22, 28, 36KXE6
FDU71, 90, 112, 140KXE6
FDUM22, 28, 36, 45, 56, 71, 90, 112, 140KXE6
FDE36, 45, 56, 71, 112, 140KXE6
FDK22, 28, 36, 45, 56, 71KXE6
FDFL28, 45, 71KXE6
FDFU28, 45, 56, 71KXE6
Hole for drain( 20 3pcs)
Necessary (both Liquid & Gas lines)
53/55
Models FDC112KXEN6, 140KXEN6, 155KXEN6
82
RMT5126MDE21  1
1.0 (M-MA32R)
5.0
29 ~ 113 22 ~ 110 21 ~ 101
1.9 3.2
20
R410A
845  970  370
Nominal cooling capacity
(1)
Power source
Nominal heating capacity
(1)
Net weight
Capacity control
Crankcase heater
Heat exchanger
Refrigerant control
Refrigerant
Quantity
Refrigerant oil
Defrost control
Starting method
2.9
Motor
Exterior dimensions
Height Width Depth
Refrigerant equipment
compressor type & Q' ty
Stucco white
Exterior appearance (color)
Noise level
(1) The cooling and heating capabilities imply the values when the indoor unit of rated capacity is connected under the condition specified in ISO-T1.
List of branch pipe part numbers (Select parts in accordance with the branching system used.)
Note
Air handling equipment
Fan type & Q'ty
Motor
Starting method
Air flow(Standard)
Shock & vibration absorber Rubber mount (for compressor)
Compressor overheat protection, overcurrent protection,
power transistor overheating protection, abnormal high pressure protection
Safety equipment
Connecting method
Drain
Insulation for piping
Indoor units to be combined
Installation data
Refrigerant piping size
Electronic expansion Valve
Microcomputer controlled De-Icer
Straight fin & inner grooved tubing
Propeller fan 1
86 1
Liquid line: 9.52(3/8")
Gas line: 15.88(5/8")
Corresponding outdoor unit
1~6 units
DIS-22-1 HEAD4-22-1
Branch pipe system Header system
Number of indoor units that
can be connected
1~8 units
1~8 units
FDC112KXEN6
FDC140KXEN6
FDC155KXEN6
Branching system
(50/60 Hz)
2OUTDOOR UNIT
2.1 Specifications

-
5
-
Item
kW
kW
kg
dB(A)
%
kW
W
kg
W
CMM 75/8275/75
mm(in)
mm
Model FDC112KXES6
14.0
16.0
11.2
12.5
15.5
16.3
52/54 53/56
FDC140KXES6 FDC155KXES6
3 Phase 380-415V 50Hz/380V 60Hz
Direct line starting
Direct line start
Flare piping
FDT28, 36, 45, 56, 71, 90, 112, 140, 160KXE6
FDTC22, 28, 36, 45, 56KXE6
FDTW28, 45, 56, 71, 90, 112, 140KXE6
FDTS45, 71KXE6
FDQS22, 28, 36, 45, 56KXE6
FDTQ22, 28, 36KXE6
FDU71, 90, 112, 140KXE6
FDUM22, 28, 36, 45, 56, 71, 90, 112, 140KXE6
FDE36, 45, 56, 71, 112, 140KXE6
FDK22, 28, 36, 45, 56, 71KXE6
FDFL28, 45, 71KXE6
FDFU28, 45, 56, 71KXE6
Hole for drain( 20 3pcs)
Necessary (both Liquid & Gas lines)
53/55
Models FDC112KXES6, 140KXES6, 155KXES6
82
RMT5126MDE31  1
1.0 (M-MA32R)
5.0
29 ~ 113 22 ~ 112 21 ~ 109
1.9 3.2
20
R410A
845  970  370
Nominal cooling capacity(1)
Power source
Nominal heating capacity(1)
Net weight
Capacity control
Crankcase heater
Heat exchanger
Refrigerant control
Refrigerant
Quantity
Refrigerant oil
Defrost control
Starting method
2.9
Motor
Exterior dimensions
Height Width Depth
Refrigerant equipment
compressor type & Q' ty
Stucco white
Exterior appearance (color)
Noise level
(1) The cooling and heating capabilities imply the values when the indoor unit of rated capacity is connected under the condition specified in ISO-T1.
List of branch pipe part numbers (Select parts in accordance with the branching system used.)
Note
Air handling equipment
Fan type & Q'ty
Motor
Starting method
Air flow(Standard)
Shock & vibration absorber Rubber mount (for compressor)
Compressor overheat protection, overcurrent protection,
power transistor overheating protection, abnormal high pressure protection
Safety equipment
Connecting method
Drain
Insulation for piping
Indoor units to be combined
Installation data
Refrigerant piping size
Electronic expansion Valve
Microcomputer controlled De-Icer
Straight fin & inner grooved tubing
Propeller fan 1
86 1
Liquid line: 9.52(3/8")
Gas line: 15.88(5/8")
Corresponding outdoor unit
1~6 units
DIS-22-1 HEAD4-22-1
Branch pipe system Header system
Number of indoor units that
can be connected
1~8 units
1~8 units
FDC112KXES6
FDC140KXES6
FDC155KXES6
Branching system
(50/60 Hz)

-
6
-
Required space for maintenance and air flow Minimum allowable space to the obstacles
Unit:mm
Mark
123
L1Open Open 500
L2300 5 Open
L3150 300 150
L4555
Installation
type
L 2
L 3
L 4
L 1
Air
inlet
Air inlet
Air outlet
Maintenance
space
Unit: mm
2.2 Exterior dimensions
Models All models
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 than 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 a 1m or larger space above the unit.
(5) A wall in front of the blower outlet must not exceed the units height.
(6) The unit name plate is attached on the lower right corner of the front
panel.
Z
51
40
36
100
845
10
11050
195
242
279
970
50 15
55
5027
52
11050
195
B
B
A
A
Terminal block
F
C
C
VIEW Z
C
5015
7050
150
40
F
E
370 4040 410 2020
55
60
388262
38
60
190 580 200
60 15
103 15
C
D
Mark Item
Service valve connection (gas side)
Service valve connection (liquid line)
Pipe/cable draw-out port
Drain discharge port
Anchor bolt hole
Cable draw-out port
A
B
C
D
E
F
ø5/8" (15.88) (flare)
ø3/8" (9.52) (flare)
4 places
ø20 x 3 places
M10 x 4 places
ø30 x 3 places