Mitsubishi Heavy Industries FDFL71KXE6F User manual

TECHNICAL MANUAL
Manual No.'20 • KX-T-348
•Note:
(INDOOR UNIT)
VRF INVERTER MULTI-SYSTEM
AIR-CONDITIONERS
Floor standing (with casing) type
Floor standing (without casing) type
(1) This document describes the indoor units with service code /F (with motion sensor system
function).
FDFL71KXE6F
FDFU28KXE6F
45KXE6F
56KXE6F
71KXE6F
updated December 14, 2020

'20 • KX-T-348
PREFACE
Notes (1) YES: Connectable (See following table in detail), NO: Not connectable
Same series Mixed series
YES [A] 2 KXE6&KXZ (New) New (for KX6) New (for KX6)
YES [B] KXE4 series KXE6 &
KXE4 series (Previous) Previous (for KX4)
YES [C] KXE4 series KXE4 series KXE4 series Previous (for KX4)
Previous (for KX4)
Previous (for KX4)
(2) Combination with new central control, PC windows central control and BMS interface unit
SC-SL1N-E SC-SL2NA-E SC-SL4N-AE/BE SC-WGWN-A/B SC-LGWN-A
SC-BGWN-A/B
128 128 96 128
(128x1) (64x2) (48x2) (64x2)
Superlink
protocol New New New New New New
Connectable
network 1 1 1 2 2 2
144 96 96 96
(48x3) (48x2) (48x2) (48x2)
Superlink
protocol Previous Previous Previous Previous Previous Previous
Connectable
network 1 1 3 2 2 2
KXE6&KXZ
Outdoor unit
YES[B]
&
YES[C]
YES [A]
Connectable
I/U
Connectable
I/U 16 48
Central control, PC windows central control and BMS interface unit
Limitation
64
Connected Indoor unit DIP switch
setting of
outdoor unit
KXE6
Superlink
protocol
16 3
4
*5
4 4
3
3 Maximum number of AC cell is limited up to 96.
In case the number of connected indoor units are more than 96, some AC cells should hold 2 or more indoor units.
4 In case of other central control like SC-SLxN-E is connected in the same network, the connectable indoor unit is limited up to 64 (32x2).
5 In case of previous Superlink protocol, the Superlink mode of new central control should be set "Previous".
6 In case of YES[A], previous central control is available to use. But the limitation of connectable indoor unit and so on is complied with
the rule of previous Superlink.
(3) The compatibility of PFD (refrigerant flow branching control)is mentioned in following table.
(4) Compatibility of the PFD control extension cables is as per the following table.
Indoor unit
Connectable PFD control
KXE4 & KXE5 series KXE6 & KXZE1 series
PFD＊＊＊3 -E
KXRE4 series PFD-E PFD-E
PFD-ER PFD-ER PFD＊＊＊4-E
Outdoor unit
KXRE6 series PFD-E PFD＊＊＊3 -E
PFD-ER PFD
PFD＊＊＊3 -E
KXZRE1 series PFD
2 If Outdoor unit system (YES [A]) is connected to other outdoor unit systems (YES [B] and/or YES [C]) in one
Superlink network, 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]) are switched to Previous (for KX4).
Combination table for KX4 series and KX6 series ( ) Date of launching in the market
Indoor unit
Connectable Same or
Same series Same series Same series Mixed series Mixed series Mixed series Mixed series
remote control Mixed series Same series
RC-E1 KXE4 KXE4(A) KXE4A KXE4A KXE4A KXE4A
KXE4KXE4R
KXE4BR
KXE5R
R KXE4R KXE4R KXE4R
Category
3-wire type
RC-E1R KXE4BR KXE4BR KXE4BR KXE4BR
KXE5R KXE5R KXE5R KXE5R
RC-E3 KXE6 KXE6 KXE6 KXE6
RC-E4 KXE6A KXE6A KXE6A KXE6A
2-wire type
RC-E5 KXE6B KXE6B KXE6B KXE6B
KXE6D KXE6D KXE6D KXE6D
RC-EX1A KXE6F KXE6F KXE6F KXE6F
Outdoor unit RC-EX3 KXZE1 KXZE1 KXZE1 KXZE1
FDCA-HKXE4 5HP (2004.4-) YES [C] YES [C] YES [C] NO NO NO NO NO NO
FDCA-HKXE4 8-48HP (2004.4-) NO YES [C] YES [C] NO NO NO NO NO NO
FDCA-HKXE4A 5HP (2006.2-) 1
NO YES [C] YES [C] YES [C] NO NO YES [C] NO NO
FDCA-HKXE4R 5,6HP (2006.5-)
FDC-KXZPE1 8,10HP (2014.12-)
FDCA-HKXE4A 8-48HP
FDCA-HKXE4R 8-48HP
FDCA-HKXE4BR 8-48HP
FDCA-HKXE4D 8-48HP
(2006.2-)
Heat pump
(2-pipe)
(2006.5-) NO YES [C] YES [C] YES [C] YES [C] YES [C] YES [C] YES [C] YES [C]
systems (2007.4-)
(2008.7-)
FDC-KXE6 4,5,6HP (2008.3-) NO NO NO NO NO NO NO NO YES [A] 6
6
FDC-KXE6 8-12HP (2009.2-) NO NO NO NO NO NO YES [B] YES [B] YES [A]
FDC-KXZE1 4,5,6HP (2018.2-)
FDC-KXE6 14-48HP (2009.1-) NO NO NO NO NO NO YES [B] YES [B] YES [A]
FDC-KXZEN/S1 4HP (2019.4-) NO NO NO NO NO NO NO NO YES [A]
NO NO NO NO NO NO NO NO YES [A]
FDC-KXZME1 8-12HP (2019.1-) NO NO NO NO NO NO NO NO YES [A]
NO NO NO NO NO NO NO NO YES [A]
FDCA-HKXRE4 8-48HP (2004.11-) NO NO YES [C] NO NO NO NO NO NO
FDCA-HKXRE4A 8-48HP
FDCA-HKXRE4R 8-48HP
FDCA-HKXRE4BR 8-48HP
FDCA-HKXRE4D 8-48HP
(2006.2-)
Heat recovery
(3-pipe)
(2006.6-) NO NO YES [C] YES [C] YES [C] YES [C] YES [C] YES [C] YES [C]
systems (2007.4-)
[ Note(3) ] (2008.7-)
FDC-KXRE6 8-48HP (2009.5-) NO NO NO NO NO NO YES [B] YES [B] YES [A]
FDC-KXZRE1 8-60HP (2017.4-) NO NO NO NO NO NO NO NO YES [A]
1 except FDKA71KXE5R
＊＊＊4-E
＊＊＊4-E
Note:
All indoor unit downstream PFD box must be
same series, KXZR,KX6 series or KX4/5 series
PFD-control series
PFD ＊＊＊ 3-E PFD ＊＊＊ 4-E
PFD-15WR-E Yes No
PFD4-15WR-E No Yes
FDC-KXZE1 10-60HP (2017.4-)

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CONTENTS
2. SPECIFICATIONS
3. EXTERIOR DIMENSIONS
3.1 Indoor unit
3.2 Remote control (Option parts)
8. APPLICATION DATA
8.1 Installation of indoor unit
4. ELECTRICAL WIRING
5. NOISE LEVEL
6. TEMPERATURE AND VELOCITY DISTRIBUTION
8.2 Electric wiring work instruction
8.3 Installation of wired remote control (Option parts)
9. OUTLINE OF OPERATION CONTROL BY MYCROCOMPUTER
9.1 Remote control (Option parts)
9.2 Operation control function by the wired remote control
(1) Model RC-EX3A
(2) Model RC-E5
7. CAPACITY TABLES
9.3 Operation control function by the indoor control
10. SYSTEM TROUBLESHOOTING PROCEDURE
10.1 Basics of troubleshooting
10.2 Contents of troubleshooting
10.3 Instruction of how to replace PCB
10.4 Indoor PCB setting
11. OPTION PARTS
11.1 Wireless kit (RCN-KIT4-E2)
11.3 Simple wired remote control (RCH-E3)
1. INFORMATION
11.2 Motion sensor kit (LB-KIT2)
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5
5
8
20
20
28
32
44
44
47
32
39
50
67
67
68
96
2..............................................................................................
3
14
13
15
97
98
118
98
11
108

Model description
Example: FDFL 71 KX E
Series No.
Application power source...See the specifications
Multi KX series
Nominal capacity (Nominal cooling capacity : 7.1kW)
Model name Indoor unit : FDFL, FDFU
6F
(1) Table of remote control (Option)
(a) Wired remote control
Model Type
Eco touch
RC-EX3A
RCH-E3 Simple
Standard
All models RC-E5
Remote control model
Model Wireless kit
RCN-KIT4-E2
FDFL,FDFU
(b) Wireless kit (Wireless remote control)
Model Motion sensor kit
LB-KIT2
FDFL,FDFU
(c) Motion sensor kit
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1. INFORMATION
'20 • KX-T-348
(1) Table of remote control (Option)

PGD000Z155
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3
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'20 • KX-T-348
Nominal cooling capacity*1 Nominal heating capacity*2
Power source
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Exterior dimensions
Height x Width x Depth
Exterior appearance （Munsell color ）
Net weight Refrigerant equipment Heat exchanger
Refrigerant control
Air handling equipment Fan type & Q'ty
Fan motor Starting method Air flow(Standard) Cooling
Heating
Available static pressure
Outdoor air intake
Air filter, Q'ty Shock & vibration absorber
Insulation (Noise & heat)
Operation control
Remote control switch ( Option )
Room temperature control
Safety equipment
Installation data
Refrigerant piping size
Connecting method Refrigerant
Drain hose
Insulation for piping
Accessories
Exterior dimensions
Electrical wiring
Notes (1) The data are measured at the following conditions. Adapted to RoHS directive
DB WB DB WB OPTION Model Specification
27 ℃19 ℃35 ℃24 ℃RC-EX3A PJZ000Z333
7 ℃6 ℃RC-E5 PJZ000Z295
(2) This packaged air-conditioner is manufactured and tested in conformity with the following standard. RCH-E3 PJZ000Z272
ISO-T1 "UNITARY AIR-CONDITIONERS"
Wired Wired Wired Wireless RCN-KIT4-E2 PJZ000Z323
LB-KIT2 PJZ000Z341
Sound pressure level
Heating*2
Model
Power consumption
Running current Sound power level
Item
Operation
Cooling*1
ISO-T1
Standards
Indoor air temperature
Outdoor air temperature
20 ℃
Remote
control
Motion sensor
FDFL71KXE6F
7.1 8.0
1 Phase 220-240V 50Hz
0.09 - 0.10 0.09 - 0.10 0.41 - 0.42 0.41 - 0.42
Hi：43 Me：41 Lo：40
Hi：43 Me：41 Lo：40
Ceramic white
（N8.0 ）near equivalent
40
Centrifugal fan ×２
40
Direct line start
Hi：18 Me：15 Lo：12
Hi：18 Me：15 Lo：12
0
Not possible
Polypropylene net ×１(Washable)
Rubber sleeve(for fan motor)
Polyurethane form
Wired : RC-E5, RC-EX3A
Wireless : RCN-KIT4-E2
Thermostat by electronics
Internal thermostat for fan motor
Frost protection thermostat
Liquid line: φ9.52 (3/8")
Gas line: φ15.88 (5/8")
Flare piping
R410A
Connectable with VP20
Necessary(both Liquid & Gas line)
Mounting kit,Drain hose
PGD000Z052 PGD000Z156
Electronic expansion valve
630 × 1,481 × 225
Louver fin & inner grooved tubing
Hi：62 Hi：62
kg
W
Pa
mm
m3/min
kW kW
A
dB(A)
mm
2. SPECIFICATIONS
(1) Floor standing (with casing) type (FDFL)
Model FDFL71KXE6F

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4
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'20 • KX-T-348
Nominal cooling capacity*1 Nominal heating capacity*2
Power source
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Exterior dimensions
Height x Width x Depth Net weight kg Refrigerant equipment Heat exchanger
Refrigerant control
Air handling equipment Fan type & Q'ty
Fan motor W Starting method Air flow(Standard) Cooling
Heating
Available static pressure Pa
Outdoor air intake
Air filter, Q'ty Shock & vibration absorber
Insulation (Noise & heat)
Operation control
Remote control switch ( Option ) Room temperature control
Safety equipment Installation data
Refrigerant piping size
Connecting method
Refrigerant
Drain hose Insulation for piping
Accessories
Exterior dimensions
Electrical wiring
Notes (1) The data are measured at the following conditions.
DB WB DB WB
27 ℃19 ℃35 ℃24 ℃
7 ℃6 ℃
(2) This packaged air-conditioner is manufactured and tested in conformity with the following standard.
ISO-T1 "UNITARY AIR-CONDITIONERS"
20 ℃
Item
Operation
Cooling*1
ISO-T1
Standards
Indoor air temperature
Outdoor air temperature
mm
Sound power level
dB(A)
Model
Power consumption
Running current
kW kW
A
Sound pressure level
m3/min
Heating*2
mm
FDFU28KXE6F
2.8 3.2
1 Phase 220-240V 50Hz
0.09 - 0.10 0.09 - 0.10 0.41 - 0.42 0.41 - 0.42
Hi：41 Me：38 Lo：36
Hi：41 Me：38 Lo：36
25
Centrifugal fan ×２
30
Direct line start
Hi：12 Me：11 Lo：10
Hi：12 Me：11 Lo：10
0
Not possible
Polypropylene net ×１(Washable)
Rubber sleeve(for fan motor)
Polyurethane form
Wired : RC-E5, RC-EX3A
Wireless : RCN-KIT4-E2
Thermostat by electronics
Internal thermostat for fan motor
Frost protection thermostat
Liquid line: φ6.35 (1/4")
Gas line: φ9.52 (3/8")
Flare piping
R410A
Connectable with VP20
Necessary(both Liquid & Gas line)
Mounting kit,Drain hose
PGD000Z056 PGD000Z158
630 × 1,077 × 225
Hi：58 Hi：58
Louver fin & inner grooved tubing
FDFU45KXE6F
4.5 5.0
1 Phase 220-240V 50Hz
0.09 - 0.10 0.09 - 0.10 0.41 - 0.42 0.41 - 0.42
Hi：43 Me：41 Lo：40
Hi：43 Me：41 Lo：40
25
Centrifugal fan ×２
40
Direct line start
Hi：14 Me：12 Lo：10
Hi：14 Me：12 Lo：10
0
Not possible
Polypropylene net ×１(Washable)
Rubber sleeve(for fan motor)
Polyurethane form
Wired : RC-E5, RC-EX3A
Wireless : RCN-KIT4-E2
Thermostat by electronics
Internal thermostat for fan motor
Frost protection thermostat
Liquid line: φ6.35 (1/4")
Gas line: φ12.7 (1/2")
Flare piping
R410A
Connectable with VP20
Necessary(both Liquid & Gas line)
Mounting kit,Drain hose
PGD000Z056 PGD000Z158
630 × 1,077 × 225
Electronic expansion valve
Louver fin & inner grooved tubing
Hi：60 Hi：60
FDFU56KXE6F
5.6 6.3
1 Phase 220-240V 50Hz
0.09 - 0.10 0.09 - 0.10 0.41 - 0.42 0.41 - 0.42
Hi：43 Me：41 Lo：40
Hi：43 Me：41 Lo：40
25
Centrifugal fan ×２
40
Direct line start
Hi：14 Me：12 Lo：10
Hi：14 Me：12 Lo：10
0
Not possible
Polypropylene net ×１(Washable)
Rubber sleeve(for fan motor)
Polyurethane form
Wired : RC-E5, RC-EX3A
Wireless : RCN-KIT4-E2
Thermostat by electronics
Internal thermostat for fan motor
Frost protection thermostat
Liquid line: φ6.35 (1/4")
Gas line: φ12.7 (1/2")
Flare piping
R410A
Connectable with VP20
Necessary(both Liquid & Gas line)
Mounting kit,Drain hose
PGD000Z056 PGD000Z158
630 × 1,077 × 225
Louver fin & inner grooved tubing
Hi：60 Hi：60
Electronic expansion valve
FDFU71KXE6F
7.1 8.0
1 Phase 220-240V 50Hz
0.09 - 0.10 0.09 - 0.10
0.41 - 0.42 0.41 - 0.42
Hi：43 Me：41 Lo：40
Hi：43 Me：41 Lo：40
32
Centrifugal fan ×２
40
Direct line start
Hi：18 Me：15 Lo：12
Hi：18 Me：15 Lo：12
0
Not possible
Polypropylene net ×１(Washable)
Rubber sleeve(for fan motor)
Polyurethane form
Wired : RC-E5, RC-EX3A
Wireless : RCN-KIT4-E2
Thermostat by electronics
Internal thermostat for fan motor
Frost protection thermostat
Liquid line: φ9.52 (3/8")
Gas line: φ15.88 (5/8")
Flare piping
R410A
Connectable with VP20
Necessary(both Liquid & Gas line)
Mounting kit,Drain hose
PGD000Z057 PGD000Z158
630 × 1,362 × 225
Hi：60 Hi：60
Louver fin & inner grooved tubing
Electronic expansion valve
OPTION Model Specification
RC-EX3A PJZ000Z333 RC-E5 PJZ000Z295 RCH-E3 PJZ000Z272
Wired Wired Wired Wireless RCN-KIT4-E2 PJZ000Z323
LB-KIT2 PJZ000Z341
Remote
control
Motion sensor
Adapted to RoHS directive
Electronic expansion valve
PGD000Z157
(2) Floor standing (without casing) type (FDFU)
Models FDFU28KXE6F, 45KXE6F, 56KXE6F, 71KXE6F
#

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B
PGD000Z052
A BLiquid piping
Gas piping
(
Accessory
)
Drain piping
(
Accessory
)
Slot hole for wall mounting Metal plate for floor mounting
(
Accessory
)
D C
E
(M10)
(M8)
Symbol Content
φ15.88(5／8")(Flare)
φ9.52(3／8")(Flare)
PT20A female screw, 360mm
Floor piping space
Remote control installation section
Control box Expansion valve box
Flexible tube
Level adjusting screw
Space for installation and service
4
－
12×24
205 205
180 23
10
177
126
166
1071
1481
184
148
73
223223
32
98
197
220 250
225
1035
1091 195
197
225
195
630
80
234
315
D
B
A
C
B
EA
（slot hole）
10×30
（slot hole）
or more
150
or more
150
or more
1000
or more
600
or more
600
Floor
Air filter
Note
(
1
)
The model name label is attached
on the lid of the control box.
Unit:mm
3. EXTERIOR DIMENSIONS
3.1 Indoor unit
(1) Floor standing (with casing) type (FDFL)
Model FDFL71KXE6F

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28
45,56
B
PGD000Z056
(2) Floor standing (with casing) type (FDFU)
Models FDFU28KXE6F, 45KXE6F, 56KXE6F

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B
PGD000Z057
Model FDFU71KXE6F

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PJZ000Z333
Installation space
30mm
30mm
30mm
120mm
配線
30mm 30mm
30mm
120mm
Wiring
R/C temperature sensor
Secure minimum spaces for disassembling the case.
Upper left and Upper right sides
……30mm or more
Bottom side…120mm or more
If using L-shaped screwdriver, 50mm or more is
available.
Dimensions (Viewed from front)
37 23 23
固定穴
18.383.5
120
19
120
37 23 23 19
120
Fixing holes
83.5
120
18.3
≦200 m 0.5 mm2x 2 cores
≦300m 0.75 mm2x 2 cores
≦400m 1.25 mm2x 2 cores
≦600m 2.0 mm2x 2 cores
● Do not install the remote control at following places.
(1) It could cause break-down or deformation of remote control.
・Where it is exposed to direct sunlight
・Where the ambient temperature becomes 0 °C or below, or 40 °C or above
・Where the surface is not flat
・Where the strength of installation area is insufficient
(2) Moisture may be attached to internal parts of the remote control, resulting in a display failure.
・Place with high humidity where condensation occurs on the remote control
・Where the remote control gets wet
(3) Accurate room temperature may not be detected using the temperature sensor of the remote
control.
・Where the average room temperature cannot be detected
・Place near the equipment to generate heat
・Place affected by outside air in opening/closing the door
・Place exposed to direct sunlight or wind from air-conditioner
・Where the difference between wall and room temperature is large
(4) When you are using the automatic grille up and down panel in the IU, you may not be able to
confirm the up and down motion.
・Where the IU cannot be visually confirmed
● When installing the unit at a hospital, telecommunication facility, etc., take
measures to suppress electric noises.
It could cause malfunction or break-down due to hazardous effects on the inverter, private power
generator, high frequency medical equipment, radio communication equipment, etc.
The influences transmitted from the remote control to medical or communication equipment could
disrupt medical activities, video broadcasting or cause noise interference.
R/C cable:0.3mm2 x 2 cores
When the cable length is longer than 100 m,
the max size for wires used in the R/C case
is 0.5 mm2. Connect them to wires of larger
size near the outside of R/C. When wires are
connected, take measures to prevent water,
etc. from entering inside.
Adapted RoHS directive
3.2 Remote control (Option parts)
(1) Wired remote control
Model RC-EX3A

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Installation space
30mm
30mm
30mm
120mm
配線
30mm 30mm
30mm
120mm
Wiring
R/C temperature sensor
Secure minimum spaces for disassembling the case.
Upper left and Upper right sides
……30mm or more
Bottom side…120mm or more
If using L-shaped screwdriver, 50mm or more is
available.
Dimensions (Viewed from front)
37 23 23
固定穴
18.383.5
120
19
120
37 23 23 19
120
Fixing holes
83.5
120
18.3
≦200 m 0.5 mm2x 2 cores
≦300m 0.75 mm2x 2 cores
≦400m 1.25 mm2x 2 cores
≦600m 2.0 mm2x 2 cores
● Do not install the remote control at following places.
(1) It could cause break-down or deformation of remote control.
・Where it is exposed to direct sunlight
・Where the ambient temperature becomes 0 °C or below, or 40 °C or above
・Where the surface is not flat
・Where the strength of installation area is insufficient
(2) Moisture may be attached to internal parts of the remote control, resulting in a display failure.
・Place with high humidity where condensation occurs on the remote control
・Where the remote control gets wet
(3) Accurate room temperature may not be detected using the temperature sensor of the remote
control.
・Where the average room temperature cannot be detected
・Place near the equipment to generate heat
・Place affected by outside air in opening/closing the door
・Place exposed to direct sunlight or wind from air-conditioner
・Where the difference between wall and room temperature is large
(4) When you are using the automatic grille up and down panel in the IU, you may not be able to
confirm the up and down motion.
・Where the IU cannot be visually confirmed
● When installing the unit at a hospital, telecommunication facility, etc., take
measures to suppress electric noises.
It could cause malfunction or break-down due to hazardous effects on the inverter, private power
generator, high frequency medical equipment, radio communication equipment, etc.
The influences transmitted from the remote control to medical or communication equipment could
disrupt medical activities, video broadcasting or cause noise interference.
R/C cable:0.3mm2 x 2 cores
When the cable length is longer than 100 m,
the max size for wires used in the R/C case
is 0.5 mm2. Connect them to wires of larger
size near the outside of R/C. When wires are
connected, take measures to prevent water,
etc. from entering inside.
Adapted RoHS directive
TEMP ON/OFF
48
ڧ120
L C D
Wall surface
Wiring
Electrical box
䠄Not included䠅
19
Wiring specifications
Exposed mounting
23
46
11.5 11
Remote
control
outline
120
45
83.5
42
120
Remote control installation dimensions
Wiring outlet
Installation hole
12 × 7 slot hole
9.5 × 5 slot hole䠄4 places䠅
䠄1䠅Installation screw for remote control
M4 screw (2 pieces)
44
(1) If the prolongation is over 100m, change to the size below.
But, wiring in the remote control case should be under 0.5mm2. Change the wire size outside of
the case according to wire connecting. Waterproof treatment is necessary at the wire connecting
section. Be careful about contact failure.
Length Wiring thickness
100 to 200m 0.5mm2× 2 cores
0.75mm2× 2 cores
1.25mm2× 2 cores
2.0mm2
× 2 cores
Under 300m
Under 400m
Under 600m
Upper part
Lower part
Lower case
Sheath
Upper cace
Board
Wiring
Upper
Lower
XY
Sheath
Upper cace
Board
Wiring
Upper
Lower
YX
Tighten the screws after
cutting off the thin part of
screw mounting part.
Embedded mounting
The peeling-off length of sheath
The peeling-off length
of sheath
In case of pulling out from
upper left
In case of pulling out
from upper left
In case of pulling out
from upper left
X wiring : 170mm
Y wiring : 190mm
Pulling out from center
X wiring : 215mm
Y wiring : 195mm
Pulling out from upper left
In case of pulling out from center
In case of pulling out
from center
In case of pulling out
from center
Wiring outlet
Cut off the upper thin part of remote control lower case with a nipper or knife,
and grind burrs with a file etc.
0.3mm2× 2 cores
X, Y Terminal block
Attach M3 screw
with washer
Unit:mm
Exterior appearance
(Munsell color)
Pearl white
(N8.5) near equivalent
PJZ000Z295
Model RC-E5

-
10
-
'20 • KX-T-348
(2) Wireless remote control (RCN-E2)
This remote control is an accessory of the wireless remote control kit. (Refer to 11.1 Wireless kit)
Unit: mm
60 24
167

-
11
-
'20 • KX-T-348
4. ELECTRICAL WIRING
(1) Floor standing (with casing) type (FDFL)
Model FDFL71KXE6F
Color marks
Mark
BK
BL
BR
OR
Color
Black
Blue
Brown
Orange
Notes
1. indicates wiring on site. 2. Use twin core shielded cord
（0.75 - 1.25mm2）at signal line between indoor unit
and outdoor unit, and signal line between indoor units. 3. Use twin core cord
（0.3mm2）at remote control line. See spec sheet
of remote
control in case that the total length is more than 100m.
4. Do not put signal line and remote control line alongside power source line. 5. Section 1
（※1）
shows electric circuit of motion sensor
（option）.
GY Gray
RD
WH
YE
YE/GN
Red
White
Yellow
Yellow／Green
Mark Color
Relay for FM
CFi FMi
Capacitor for FMi Fan motor（with thermistor）
Temperature sensor（Remote control）
Indoor unit address: tens place
Temperature sensor（Heat exchanger）
Temperature sensor（Return air）
Model capacity setting
SW6 Thc SW1
Thi-R1,2,3
Thi-A
X1-3,6
SM
Stepping motor（for electronic expansion valve） Indoor unit address: ones place
SW2
Indication lamp（Red-Inspection） Indication lamp（Green-Normal operation）
Operation check, Drain motor test run
LED・3 F TB2
Fuse
Terminal block（Signal line）（ □mark）
Tri LED・2 SW7-1
Transformer
SW3 SW4
Outdoor unit address: tens place Outdoor unit address: ones place
SW5-1
Automatic adjustment／
SW5-2
Indoor unit address: hundreds place
Connector
CNA-Z
■mark
Closed-end connector
Spare Superlink connector change
JSL1 TB1
Terminal block（Power source）（ □mark）
Fixed previous version of Superlink protocol
Item
PIS
Motion sensor
Description
RY Red／Yellow
Meaning of marks
CNF1
CFi
FMi
X1
3 UH
BR
CNM3
C
WH
1
X6
MH
BK
BL
5 7
L 9
X3
X2
CNI
CNW1
AC 220ｰ240V
Tri
Power source
TB1
WH
RD
Power source line
CNW0
WH
CNU
WH
RD
1 3
RD
N
L
M
1～
RD
RD
BR
BR
F（3.15A） F（3.15A）
YE/GN
Remote
Thc
AB
XY XY
19V 24V
4
BK
1 2 3 4 5 6
BL
RD
RD
1 2 3 4
CNN
5 6 1 2
OR
OR
BK
BK
M
WH
YE
OR
BL
BR
RD
SM
RD YE BK
BK
BK
BL
control
line
between indoor units
YE
AC 220
ｰ240V 50Hz
Single-phase Power source
RY
BK
BK
BK
CNH
Thi-R1 Thi-AThi-R2
t° t°
Thi-R3
t° t°
BK
BK
BK
GY
GY
CNN3 CNN4 CNN5 CNH2
WH
BK
WH BK
CNA
RD
CNA2
WH
BK
WH
BK
BL
WHWH
YE/GN
WH
WH
RD
BL
SW2
SW6 SW5 SW7
SW1 SW3 SW4
CNK2
CNZ CND
LED・2 LED・3
1 1
PIS
2 3
4
※1
WH
BK
WH
RD BK
5
RD
CNG CNV
Connector for branching controller of heat recovery 3-pipe systems
XR1
XR2
XR3
XR4
XR5（Remote operation input
Prepare on site
1
2 3
4
5
6
+12
CNT
BL
（Operation）
（Heating） （Thermo ON） （Inspection）
Superlink（Spare）
JSL1
: volt-free contact）
Option
For HA
For Heat recovery
（20S）
（SVH）
（SVG）
（SVE）
XB1
XB2
XB3
XB4
1
2 3
4
5
+12
CNT2
RD
Control PCB
3-pipe systems
Signal line
（Shield cord）
Signal line between indoor units
BL BK
CNW2
1 2
BL
RD
1 3
WH
BK
CNK1CNB
TB2
t°
Earth
PGD000Z156

-
12
-
'20 • KX-T-348
(2) Floor standing (without casing) type (FDFU)
All models
Color marks
Mark
BK
BL
BR
OR
Color
Black
Blue
Brown
Orange
Notes
1. indicates wiring on site. 2. Use twin core shielded cord
（0.75 - 1.25mm2） at signal line between indoor unit
and outdoor unit, and signal line between indoor units. 3. Use twin core cord
（0.3mm2）at remote control line. See spec sheet of remote
control in case that the total length is more than 100m. 4. Do not put signal line and remote control line alongside power source line. 5. Section 1
（※1）
shows electric circuit of motion sensor
（option）.
GY Gray
RD
WH
YE
YE/GN
Red
White
Yellow
Yellow／Green
Mark Color
Relay for FM
CFi FMi
Capacitor for FMi Fan motor (with thermistor）
Temperature sensor (Remote control)
Indoor unit address: tens place
Temperature sensor (Heat exchanger）
Temperature sensor (Return air)
Model capacity setting
SW6 Thc SW1 Thi-R1,2,3
Thi-A
X1-3,6
SM
Stepping motor (for electronic expansion valve) Indoor unit address: ones place
SW2
Indication lamp (Red-Inspection) Indication lamp (Green-Normal operation)
Operation check, Drain motor test run
LED・3 F TB2
Fuse
Terminal block (Signal line)(□ mark）
Tri LED・2 SW7-1
Transformer
SW3 SW4
Outdoor unit address: tens place Outdoor unit address: ones place
SW5-1
Automatic adjustment／
SW5-2
Indoor unit address: hundreds place
Connector
CNA-Z
■mark
Closed-end connector
Spare Superlink connector change
JSL1 TB1
Terminal block (Power source)(□ mark）
Fixed previous version of Superlink protocol
Item
PIS
Motion sensor
Description
RY Red／Yellow
Meaning of marks
CNF1
CFi
FMi
X1
3 UH
BR
CNM3
C
WH
1
X6
MH
BK
BL
5 7
L 9
X3
X2
CNI
CNW1
AC 220ｰ240V
Tri
Power source
TB1
WH
RD
Power source line
CNW0
WH
CNU
WH
RD
1 3
RD
N
L
M
1～
RD
RD
BR
BR
F（3.15A） F（3.15A）
YE/GN
Remote
Thc
AB
XY XY
19V 24V
4
BK
1 2 3 4 5 6
BL
RD
RD
1 2 3 4
CNN
5 6 1 2
OR
OR
BK
BK
M
WH
YE
OR
BL
BR
RD
SM
RD YE BK
BK
BK
BL
control
line
between indoor units
YE
AC 220
ｰ240V 50Hz
Single-phase Power source
RY
BK
BK
XR1
XR2
XR3
XR4
XR5（Remote operation input ：volt-free contact）
Prepare on site
1
2 3
4
5
6
+12
CNT
BL
（Operation） （Heating） （Thermo ON） （Inspection）
Option
Superlink（Spare）
JSL1
For HA
For Heat recovery
（20S）
（SVH）
（SVG）
（SVE）
XB1
XB2
XB3
XB4
1
2 3
4
5
+12
CNT2
RD
Control PCB
3-pipe systems
Signal line (Shield cord）
Signal line between indoor units
BL BK
1 2
BL
RD
1 3
WH
BK
CNK1CNB
t°
TB2
CNW2
Earth
BL
CNA2
WH
WH BL
WH
RD
BK
WHWH
CNA
RD
BK
CNH
Thi-R1 Thi-AThi-R2
t° t°
Thi-R3
t° t°
BK
BK
BK
GY
GY
CNN3 CNN4 CNN5 CNH2
WH
BK
BK
WH
BK
WH
YE/GN
SW2
SW6 SW5 SW7
SW1 SW3 SW4
CNK2
CNZ CND
1 1
PIS
2 3
4
※1
WH
BK
WH
RD BK
5
RD
CNG CNV
LED・2 LED・3
Connector for branching controller of heat recovery 3-pipe systems
PGD000Z158

-
13
-
'20 • KX-T-348
5. NOISE LEVEL
Note (1) The data are based on the following conditions.
Ambient air tempetature: Indoor unit 27˚C DB, 19˚C WB. Outdoor unit 35˚C DB
(2) The data in the chart are measuted in an unechonic room.
(3) The noise levels measured in the eld are usually higher than the data because of reection.
(1) Floor standing (with casing) type (FDFL)
(2) Floor standing (without casing) type (FDFU)
-
95
-
'12 • KX-DB-175
(13) Floor standing (with casing) type (FDFL)
(14) Floor standing (without casing) type (FDFU)
Measured based on JIS B 8616
Mike position as right
1m
Mike (front & at low point)
1m
Indoor unit
Model FDFU28KXE6F
Noise level 41 dB (A) at HIGH
38 dB (A) at MEDIUM
36 dB (A) at LOW
Models FDFL71KXE6F
FDFU45, 56, 71KXE6F
Noise level 43 dB (A) at HIGH
41 dB (A) at MEDIUM
40 dB (A) at LOW
1m
Unit
Supply duct
Return duct
2m 1m
1m
Air
Measured based on JIS B 8616
Mike position as right
(15) Outdoor Air Processing unit (FDU-F)
(1) Standard (Factory setting)
Note (1) Values are for external static pressure of 200Pa.
N60
40
50
40
50
63 125 250 500 1000 2000 4000 8000
10
20
30
10
20
30
N50
N40
N30
N20
60
60
N10
Mid Octave Band Frequency (Hz)
Model FDU500FKXE6F
Noise level 43 dB (A) at 50Hz Noise level 45 dB (A) at 60Hz
N60
40
50
40
50
63 125 250 500 1000 2000 4000 8000
10
20
30
10
20
30
N50
N40
N30
N20
60
60
N10
Mid Octave Band Frequency (Hz)
Model FDU850FKXE6F
Noise level 46 dB (A) at 50Hz Noise level 48 dB (A) at 60Hz
N60
40
50
40
50
63 125 250 500 1000 2000 4000 8000
10
20
30
10
20
30
N50
N40
N30
N20
60
60
N10
Noise level 46dB (A) at 50Hz
Mid Octave Band Frequency (Hz)
Model FDU1300FKXE6
N60
40
50
40
50
63 125 250 500 1000 2000 4000 8000
10
20
30
10
20
30
N50
N40
N30
N20
60
60
N10
Noise level 48dB (A) at 60Hz
Mid Octave Band Frequency (Hz)
Model FDU1300FKXE6F
Noise level 48 dB (A) at 50Hz Noise level 50 dB (A) at 60Hz
N60
40
50
40
50
63 125 250 500 1000 2000 4000 8000
10
20
30
10
20
30
N50
N40
N30
N20
60
60
N10
Noise level 48dB (A) at 50Hz
Mid Octave Band Frequency (Hz)
N60
40
50
40
50
63 125 250 500 1000 2000 4000 8000
10
20
30
10
20
30
N50
N40
N30
N20
60
60
N10
Noise level 50dB (A) at 60Hz
Mid Octave Band Frequency (Hz)
Mid octave band frequency (Hz)
N70
50
60
63 125 250 500 1000 2000 4000 8000
20
30
40
N60
N50
N40
N30
70
50
60
30
40
70
N20
(Standard 0.0002 bar)
Mid octave band frequency (Hz)
N70
63 125 250 500 1000 2000 4000 8000
N60
N50
N40
N30
50
60
20
30
50
70
50
60
30
40
70
N20
Souud Pressure Level (dB)
(standard 2×10-5 Pa)
Souud Pressure Level (dB)
(standard 2×10-5 Pa)
Souud Pressure Level (dB)
(standard 2×10-5 Pa)
Souud Pressure Level (dB)
(standard 2×10-5 Pa)
Souud Pressure Level (dB)
(standard 2×10-5 Pa)
Souud Pressure Level (dB)
(standard 2×10-5 Pa) (Standard 2×10
-5 Pa)
Sound Pressure Level (dB)
(Standard 2×10
-5 Pa)
Sound Pressure Level (dB)

-
14
-
'20 • KX-T-348
6. TEMPERATURE AND VELOCITY DISTRIBUTION
(1) Floor standing (with casing) type (FDFL)
Model FDFL71KXE6F
Indoor temperature
Cooling 27°CDB/19°CWB, Heating 20°CDB
〔Note〕
These gures represent the typical main range of temperature and velocity distribution at the center of air outlet within the published conditions.
In the actual installation, they may differ from the typical gures under the inuence of air temperature conditions, ceiling height, operation conditions and obstacles.
15
2.0
35
2.0
24
1821
1.5 1.0 0.5
32
29
26 23
1.5
1.0 0.5

-
15
-
'20 • KX-T-348
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
7. CAPACITY TABLES
(1) Floor standing (with casing) type (FDFL)
-
23
-
'11 • PAC-T-162
Model SRK100VNXPZJX Indoor unit SRK50ZJX-S1 (2 units) Outdoor unit FDC100VNX
(kW) (kW)
(kW) (kW)
1.7 SELECTION CHART
Correct the cooling and heating capacity in accordance with the operating conditions. The net cooling and heating capacity can be
obtained in the following way.
Net capacity = Capacity shown in the capacity tables (1.7.1) × Correction factors shown in the table (1.7.2) (1.7.3) (1.7.4).
Caution: In case that the cooling operation during low outdoor air temperature below -5°C is expected, install the outdoor unit
where it is not influenced by natural wind. Otherwise protection control by low pressure will be activated much more
frequently and it will cause insufficient capacity or breakdown of the compressor in worst case.
1.7.1 Capacity tables
(1) Twin type
Indoor air temperature Indoor air temperature
Outdoor
air temp.
Outdoor
air temp.
Note(1) These data show average statuses.
Note(1) Depending on the system control, there may be ranges where the operation is not conducted continuously.
Note(1) These data show the case where the operation frequency of a compressor is fixed.
(2) Capacities are based on the following conditions.
(2) Corresponding refrigerant piping length :7.5m
(2) Level difference of Zero.
(3) Symbols are as follows.
TC : Total cooling capacity
SHC : Sensible heat capacity
PCA001Z629
18℃DB 21℃DB 23℃DB 26℃DB 27℃DB 28℃DB 31℃DB 33℃DB ℃DB
12℃WB 14℃WB 16℃WB 18℃WB 19℃WB 20℃WB 22℃WB 24℃WB ℃DB ℃WB 16 18 20 22 24
TC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC -19.8 -20
11 -17.7 -18
13 -15.7 -16
15 -13.5 -14
17 -11.5 -12
19 -9.5 -10
21 -7.5 -8
23 -5.5 -6
25 -3.0 -4
27 -1.0 -2
29 1.0 0
31 2.0 1
33 3.0 2
35 5.0 4
37 7.0 6
39 9.0 8
41 11.5 10
43 13.5 12
15.5 14
16.5 16
℃DB SHC
Heat ModeCool Mode
Model SRK100VSXPZJX Indoor unit SRK50ZJX-S1 (2 units) Outdoor unit FDC100VSX
Indoor air temperature Indoor air temperature
Outdoor
air temp.
Outdoor
air temp.
PCA001Z629
18℃DB 21℃DB 23℃DB 26℃DB 27℃DB 28℃DB 31℃DB 33℃DB ℃DB
12℃WB 14℃WB 16℃WB 18℃WB 19℃WB 20℃WB 22℃WB 24℃WB ℃DB ℃WB 16 18 20 22 24
TC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC -19.8 -20
11 -17.7 -18
13 -15.7 -16
15 -13.5 -14
17 -11.5 -12
19 -9.5 -10
21 -7.5 -8
23 -5.5 -6
25 -3.0 -4
27 -1.0 -2
29 1.0 0
31 2.0 1
33 3.0 2
35 5.0 4
37 7.0 6
39 9.0 8
41 11.5 10
43 13.5 12
15.5 14
16.5 16
℃DB SHC
Heat ModeCool Mode
10.50
10.92
10.09 10.71 11.34
10.11 10.44 11.10 11.75
10.04 10.34 10.68 11.35 12.01
10.26 10.57 10.91 11.59 12.28
10.28 10.59 10.94 11.63 12.32
10.30 10.62 10.97 11.66 12.36
10.33 10.64 10.96 11.59
10.16 10.48 10.80 11.45
10.00 10.32 10.65 11.30
10.16 10.49 11.15
10.34 11.01
10.13 10.77
10.54
10.31
10.08
10.00 7.71
7.30 7.24 7.18 7.12 7.06
7.74 7.68 7.62 7.55 7.49
8.18 8.12 8.05 7.99 7.92
8.54 8.47 8.40 8.33 8.27
8.89 8.82 8.75 8.68 8.61
9.25 9.17 9.10 9.03 8.95
9.60 9.53 9.45 9.38 9.30
10.00 9.92 9.84 9.76 9.68
10.39 10.31 10.23 10.14 10.06
10.79 10.70 10.62 10.53 10.44
11.18 11.09 11.01 10.91 10.82
11.38 11.29 11.20 11.10 11.01
11.38 11.29 11.20 11.10 11.01
11.38 11.29 11.20 11.11 11.01
11.37 11.29 11.20 11.11 11.01
11.85 11.76 11.67 11.58 11.48
12.32 12.23 12.15 12.05 11.95
12.97 12.88 12.78 12.68 12.72
13.62 13.52 13.41 13.32 13.49
13.95 13.84 13.72 13.63 13.87
8.33 6.87 8.84 7.42 9.10 7.37 9.38 7.32 9.94 7.73 7.60
8.63 7.00 9.17 7.55 9.43 7.49 9.73 7.45 10.32 7.86 7.73
8.93 7.13 9.49 7.68 9.77 7.62 7.58 7.99 7.86
9.23 7.26 9.82 7.81 7.76 7.71 8.13 7.99
9.44 7.35 7.90 7.85 7.80 8.21 8.07
9.64 7.44 7.99 7.94 7.89 8.30 8.16
9.64 7.44 8.00 7.94 7.90 8.31 8.17
8.95 7.56 9.64 7.44 8.01 7.96 7.91 8.32 8.18
8.91 7.54 9.64 7.44 8.02 7.96 7.91 8.30
8.84 7.51 9.51 7.38 7.95 7.90 7.85 8.25
8.76 7.47 9.37 7.32 7.88 7.84 7.79 8.19
8.21 6.97 8.58 7.39 9.23 7.26 9.83 7.81 7.78 7.73 8.14
7.77 6.76 8.31 7.26 9.09 7.20 9.66 7.75 7.67 8.09
7.68 6.71 8.18 7.20 8.92 7.12 9.49 7.68 9.81 7.64 7.60 8.01
7.58 6.66 8.04 7.14 8.76 7.06 9.31 7.61 9.62 7.57 9.93 7.52 7.93
7.49 6.62 7.91 7.08 8.59 6.98 9.14 7.54 9.43 7.49 9.73 7.45 7.86
7.40 6.57 7.78 7.02 8.42 6.91 8.96 7.47 9.24 7.42 9.52 7.37 7.78
8.33 6.87 8.84 7.42 9.10 7.37 9.38 7.32 9.94 7.73 10.50 11.34 11.25 11.16 11.06 10.97
8.63 7.00 9.17 7.55 9.43 7.49 9.73 7.45 10.32 7.86 10.92 11.38 11.29 11.20 11.11 11.02
8.93 7.13 9.49 7.68 9.77 7.62 10.09 7.58 10.71 7.99 11.34 11.38 11.29 11.20 11.11 11.02
9.23 7.26 9.82 7.81 10.11 7.76 10.44 7.71 11.10 8.13 11.75 11.38 11.29 11.20 11.11 11.02
9.44 7.35 10.04 7.90 10.34 7.85 10.68 7.80 11.35 8.21 12.01 11.38 11.29 11.20 11.11 11.02
9.64 7.44 10.26 7.99 10.57 7.94 10.91 7.89 11.59 8.30 12.28 11.37 11.29 11.20 11.11 11.02
9.64 7.44 10.28 8.00 10.59 7.94 10.94 7.90 11.63 8.31 12.32 11.38 11.29 11.20 11.11 11.02
8.95 7.56 9.64 7.44 10.30 8.01 10.62 7.96 10.97 7.91 11.66 8.32
7.60
7.73
7.86
7.99
8.07
8.16
8.17
8.1812.36 11.38 11.29 11.20 11.11 11.01
8.91 7.54 9.64 7.44 10.33 8.02 10.64 7.96 10.96 7.91 11.59 8.30 11.38 11.29 11.20 11.11 11.01
8.84 7.51 9.51 7.38 10.16 7.95 10.48 7.90 10.80 7.85 11.45 8.25 11.38 11.29 11.20 11.10 11.01
8.76 7.47 9.37 7.32 10.00 7.88 10.32 7.84 10.65 7.79 11.30 8.19 11.38 11.29 11.20 11.10 11.01
8.21 6.97 8.58 7.39 9.23 7.26 9.83 7.81 10.16 7.78 10.49 7.73 11.15 8.14 11.38 11.29 11.20 11.10 11.01
7.77 6.76 8.31 7.26 9.09 7.20 9.66 7.75 10.00 7.71 10.34 7.67 11.01 8.09 11.38 11.29 11.20 11.11 11.01
7.68 6.71 8.18 7.20 8.92 7.12 9.49 7.68 9.81 7.64 10.13 7.60 10.77 8.01 11.37 11.29 11.20 11.11 11.01
7.58 6.66 8.04 7.14 8.76 7.06 9.31 7.61 9.62 7.57 9.93 7.52 10.54 7.93 11.85 11.76 11.67 11.58 11.48
7.49 6.62 7.91 7.08 8.59 6.98 9.14 7.54 9.43 7.49 9.73 7.45 10.31 7.86 12.32 12.23 12.15 12.05 11.95
7.40 6.57 7.78 7.02 8.42 6.91 8.96 7.47 9.24 7.42 9.52 7.37 10.08 7.78 12.97 12.88 12.78 12.68 12.72
13.62 13.52 13.41 13.32 13.49
13.95 13.84 13.72 13.63 13.87
11.29 11.20 11.11 11.02 10.93
PGD000Z102
FDFL71KXE6F Cooling mode Heating mode

-
16
-
'20 • KX-T-348
PGD000Z101
(2) Floor standing (without casing) type (FDFU)
Cooling mode Heating mode
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
FDFU28KXE6F

-
17
-
'20 • KX-T-348
PGD000Z101
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Cooling mode Heating mode
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
FDFU45KXE6F

-
18
-
'20 • KX-T-348
PGD000Z101
Cooling mode Heating mode
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
Indoor air temperature
Outdoor air
temperature
(ºCDB）
FDFU56KXE6F