Mitsubishi Heavy Industries KXZ Series User manual

TECHNICAL MANUAL
Manual No.'17•KX-T-259
(1) Regarding the outdoor unit KXZ series, refer to the No.'14 • KX-T-223, No.'15 • KX-T-227 and
•Note:
No.'16 • KX-DB-225D.
(INDOOR UNIT)
Wall mounted type
FDK22KXZE1
28KXZE1
36KXZE1
45KXZE1
56KXZE1
71KXZE1
KXZ series
VRF INVERTER MULTI-SYSTEM AIR-CONDITIONERS

– 1–
'17 • KX-T-259
CONTENTS
1. SPECIFICATIONS
2. EXTERIOR DIMENSIONS ................................................................................ 5
(1) Indoor units ...........................
......................................................................... ..... 5
(2) Remote control (Option parts) ................
....................................... ................ 7
7. APPLICATION DATA ...................................................................................... 25
7.1 Installation of indoor unit .............
........................................................................ ... 25
3. ELECTRICAL WIRING
4. NOISE LEVEL
5. TEMPERATURE AND VELOCITY DISTRIBUTION
7.2 Electric wiring work instruction ............
............................................................. .... 29
7.3 Installation of wired remote control (Option parts) ..........
........................... ...... 33
8. OUTLINE OF OPERATION CONTROL BY MYCROCOMPUTER ................. 45
8.1 Remote control (Option parts) ..................................................................... 45
8.2 Operation control function by the wired remote control ...........
................. ..... 48
(1) Model RC-EX3 ................................................................................
..... .... 33
(2) Model RC-E5 ..................................................................................
..... ..... 40
6. CAPACITY TABLES
8.3 Operation control function by the indoor control .........
.............................. ....... 51
9. SYSTEM TROUBLESHOOTING PROCEDURE ............................................. 67
9.1 Basics of troubleshooting .........
...................................................................... ....... 67
9.2 Contents of troubleshooting ...........
.................................................................. ..... 68
9.3 Instruction of how to replace PCB ........
....................................................... ........ 99
............................................................................................2
.....................................................................................
........................................ 14
.................................................................................................. 11
......................................................................................... 19
9.4 Indoor PCB setting .............
.................................................................................. ...101
10. OPTION PARTS
10.1 Wireless kit (RCN-K-E2
･
RCN-K71-E2)
................................................................ 102
................................................................ 110
10.2 Simple wired remote control (RCH-E3)
........................... ................................................................ .... 102
■How to read the model name
Example: FDK 22 E
Series No.
Application power source...See the specifications
Multi KXZ series
Nominal capacity (Nominal cooling capacity : 2.2kW)
Model name〔Wall mounted type〕
KXZ 1
10

– 2–
1. SPECIFICATIONS
Models FDK22KXZE1, 28KXZE1, 36KXZE1, 45KXZE1, 56KXZE1
PHA001Z126
Models FDK22KXZE1 FDK28KXZE1 FDK36KXZE1 FDK45KXZE1 FDK56KXZE1
－ － － － －
Nominal cooling capacity*1 kW 2.2 2.8 3.6 4.5 5.6 Nominal heating capacity*2 2.5 3.2 4.0 5.0 6.3 Power source 220-240V 50Hz / 220V 60Hz 220-240V 50Hz / 220V 60Hz 220-240V 50Hz / 220V 60Hz 220-240V 50Hz / 220V 60Hz 220-240V 50Hz / 220V 60Hz Power consumption Cooling kW 0.02 0.02 0.03 0.03 0.03
Heating 0.02 0.02 0.03 0.03 0.03
Running current Cooling A0.18 - 0.16 / 0.18 0.18 - 0.16 / 0.18 0.27 - 0.25 / 0.27 0.27 - 0.25 / 0.27 0.27 - 0.25 / 0.27
Heating 0.18 - 0.16 / 0.18 0.18 - 0.16 / 0.18 0.27 - 0.25 / 0.27 0.27 - 0.25 / 0.27 0.27 - 0.25 / 0.27
Sound Pressure Level Cooling dB(A) P-Hi：38 Hi：36 Me：32 Lo：28 P-Hi：38 Hi：36 Me：32 Lo：28 P-Hi：40 Hi：38 Me：33 Lo：28 P-Hi：43 Hi：41 Me：36 Lo：33 P-Hi：43 Hi：41 Me：36 Lo：33
Heating P-Hi：38 Hi：36 Me：32 Lo：28 P-Hi：38 Hi：36 Me：32 Lo：28 P-Hi：40 Hi：38 Me：33 Lo：28 P-Hi：43 Hi：41 Me：36 Lo：33 P-Hi：44 Hi：42 Me：37 Lo：33
Sound Power Level Cooling dB(A) 55 55 58 58 58
Heating 55 55 58 58 61
Exterior dimensions Height x Width x Depth mm 290 × 870 × 230 290 × 870 × 230 290 × 870 × 230 290 × 870 × 230 290 × 870 × 230 Exterior appearance
（Munsell color）Fine Snow
（8.0Y9.3/0.1）near equivalent
Fine Snow
（8.0Y9.3/0.1）near equivalent
Fine Snow
（8.0Y9.3/0.1）near equivalent
Fine Snow
（8.0Y9.3/0.1 ）near equivalent
Fine Snow
（8.0Y9.3/0.1）near equivalent
Net weight kg 11 11 11.5 11.5 11.5 Refrigerant equipment Heat exchanger Louver n & inner grooved tubing Louver n & inner grooved tubing Louver n & inner grooved tubing Louver n & inner grooved tubing Louver n & inner grooved tubing Refrigerant control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Air handling equipment Fan type & Q'ty Tangential fan × 1 Tangential fan × 1 Tangential fan × 1 Tangential fan × 1 Tangential fan ×1 Motor W 42 42 42 42 42 Starting method Direct line start Direct line start Direct line start Direct line start Direct line start Air ow (Standard) Cooling m3/min P-Hi：8.5 Hi：8 Me：6 Lo：5 P-Hi：8.5 Hi：8 Me：6 Lo：5 P-Hi：11 Hi：10 Me：8 Lo：7 P-Hi：12 Hi：11 Me：9 Lo：8 P-Hi：12 Hi：11 Me：9 Lo：8
Heating P-Hi：8.5 Hi：8 Me：6 Lo：5 P-Hi：8.5 Hi：8 Me：6 Lo：5 P-Hi：11 Hi：10 Me：8 Lo：7 P-Hi：12 Hi：11 Me：9 Lo：8 P-Hi：13 Hi：12 Me：10 Lo：8
Available static pressure Pa 0 0 0 0 0
Outside air intake Not possible Not possible Not possible Not possible Not possible Air lter, Q'ty Polypropylene net × 2 (Washable) Polypropylene net × 2 (Washable) Polypropylene net × 2 (Washable) Polypropylene net × 2
(Washable)
Polypropylene net × 2
(Washable)
Shock & vibration absorber Rubber sleeve (for fan motor) Rubber sleeve (for fan motor) Rubber sleeve (for fan motor) Rubber sleeve (for fan motor) Rubber sleeve (for fan motor) Insulation (noise & heat) Polyurethane form Polyurethane form Polyurethane form Polyurethane form Polyurethane form Operation control
Remote control switch
wired:RC-EX3, RC-E5, RCH-E3
wireless:RCN-K-E2
Remote control switch
wired:RC-EX3, RC-E5, RCH-E3
wireless:RCN-K-E2
Remote control switch
wired:RC-EX3, RC-E5, RCH-E3
wireless:RCN-K-E2
Remote control switch
wired:RC-EX3, RC-E5, RCH-E3
wireless:RCN-K-E2
Remote control switch
wired:RC-EX3, RC-E5, RCH-E3
wireless:RCN-K-E2
Room temperature control Thermostat by electronics Thermostat by electronics Thermostat by electronics Thermostat by electronics Thermostat by electronics Safety equipment Overload protection for fan motor
Frost protection thermostat
Overload protection for fan motor
Frost protection thermostat
Overload protection for fan motor
Frost protection thermostat
Overload protection for fan motor
Frost protection thermostat
Overload protection for fan motor
Frost protection thermostat
Installation data Refrigerant piping size
Liquid line: φ6.35 (1/4")
Gas line: φ9.52 (3/8")
Liquid line: φ6.35 (1/4")
Gas line: φ9.52 (3/8")
Liquid line: φ6.35 (1/4")
Gas line: φ12.7 (1/2")
Liquid line: φ6.35 (1/4")
Gas line: φ12.7 (1/2")
Liquid line: φ6.35 (1/4")
Gas line: φ12.7 (1/2")
Connecting method Flare piping Flare piping Flare piping Flare piping Flare piping Refrigerant R410A R410A R410A R410A R410A
－ － － － －
Drain hose Connectable with VP16 Connectable with VP16 Connectable with VP16 Connectable with VP16 Connectable with VP16 Insulation for piping Necessary (both Liquid & Gas line) Necessary (both Liquid & Gas line) Necessary (both Liquid & Gas line) Necessary (both Liquid & Gas line) Necessary (both Liquid & Gas line) Standard Accessories Mounting kit Mounting kit Mounting kit Mounting kit Mounting kit Exterior dimensions PHA001Z105 PHA001Z105 PHA001Z105 PHA001Z105 PHA001Z105 Electrical wiring PHA001Z107 PHA001Z107 PHA001Z107 PHA001Z107 PHA001Z107
Notes (1) The data are measured at the following conditions. (2) This packaged air-conditioner is manufactured and tested in conformity with the following standard.
ISO-T1 "UNITARY AIR-CONDITIONERS"
Adapted to RoHS directive
Item Indoor air temperature Outdoor air temperature Standards
Operation DB WB DB WB
Cooling*1 27℃19℃35℃24℃ISO-T1
Heating*2 20℃7℃6℃
'17 • KX-T-259

– 3–
Models FDK71KXZE1
－
Nominal cooling capacity*1 kW 7.1 Nominal heating capacity*2 8.0 Power source 220-240V 50Hz / 220V 60Hz Power consumption Cooling kW 0.04
Heating 0.04
Running current Cooling A0.34 - 0.31 / 0.34
Heating 0.34 - 0.31 / 0.34
Sound Pressure Level Cooling dB(A) P-Hi：42 Hi：40 Me：37 Lo：35
Heating P-Hi：42 Hi：40 Me：37 Lo：35
Sound Power Level Cooling dB(A) 59
Heating 59
Exterior dimensions Height x Width x Depth mm 339 × 1,197 × 262 Exterior appearance
（Munsell color）Fine Snow
（8.0Y9.3/0.1）near equivalent
Net weight kg 17 Refrigerant equipment Heat exchanger Louver n & inner grooved tubing Refrigerant control Electronic Expansion Valve Air handling equipment Fan type & Q'ty Tangential fan × 1 Motor W 56 Starting method Direct line start Air ow (Standard) Cooling m3/min P-Hi：21 Hi：19 Me：16 Lo：14
Heating P-Hi：21 Hi：19 Me：16 Lo：14
Available static pressure Pa 0 Outside air intake Not possible Air lter, Q'ty Polypropylene net × 2
(Washable)
Shock & vibration absorber Rubber sleeve (for fan motor) Insulation (noise & heat) Polyurethane form Operation control
Remote control switch
wired:RC-EX3, RC-E5, RCH-E3
wireless:RCN-K71-E2
Room temperature control Thermostat by electronics Safety equipment Overload protection for fan motor
Frost protection thermostat
Installation data Refrigerant piping size
Liquid line: φ9.52 (3/8")
Gas line: φ15.88 (5/8")
Connecting method Flare piping Refrigerant R410A
－
Drain hose Connectable with VP16 Insulation for piping Necessary (both Liquid & Gas line) Standard Accessories Mounting kit Exterior dimensions PHA001Z106 Electrical wiring PHA001Z107
Notes (1) The data are measured at the following conditions. (2) This packaged air-conditioner is manufactured and tested in conformity with the following standard.
ISO-T1 "UNITARY AIR-CONDITIONERS"
Adapted to RoHS directive
Item Indoor air temperature Outdoor air temperature Standards
Operation DB WB DB WB
Cooling*1 27℃19℃35℃24℃ISO-T1
Heating*2 20℃7℃6℃
PHA001Z126
Model FDK71KXZE1
'17 • KX-T-259

– 4–
'17 • KX-T-259
Weight List (Package)
Material
Model
Gross
weight
Packing
Parts
weight
(Total)
Paper Plastic Metal Wood Glass Other
Steel Aluminium
Indoor
FDK22KXZE1 12.5 1.21 0.88 0.33 0.00 0.00 0.00 0.00 0.00
FDK28KXZE1 12.5 1.21 0.88 0.33 0.00 0.00 0.00 0.00 0.00
FDK36KXZE1 13.0 1.21 0.88 0.33 0.00 0.00 0.00 0.00 0.00
FDK45KXZE1 13.0 1.21 0.88 0.33 0.00 0.00 0.00 0.00 0.00
FDK56KXZE1 13.0 1.21 0.88 0.33 0.00 0.00 0.00 0.00 0.00
FDK71KXZE1 20.0 2.64 1.87 0.77 0.00 0.00 0.00 0.00 0.00
Option
parts
RCN-K-E2 0.7 0.20 0.18 0.02 0.00 0.00 0.00 0.00 0.00
RCN-K71-E2 0.7 0.20 0.18 0.02 0.00 0.00 0.00 0.00 0.00
【Indoor unit & option parts】Unit : kg

– 5–
'17 • KX-T-259
2. EXTERIOR DIMENSIONS
(1) Indoor unit
Models FDK22KXZE1, 28KXZE1, 36KXZE1, 45KXZE1, 56KXZE1
F
D E AB C
F F
Hole on wall for right rear piping Hole on wall for left rear piping Gas piping Outlet for wiring（on both side） Drain hose Liquid piping
F E C D B
Symbol
A
VP16
Content
36,45,56
22,28
Model
Space for installation and service when viewing from the front
Unit:mm
Note（1）The model name label is attached
on the right side of the unit.
45
45
870
290
Outlet for downward piping
（Refer to the top view）
230 3
6013
530
450
190
185 43
170
585
13
（Service space）
Unit （Service space）
（Service space）
Installation board
142.5 142.5
150
50
9
47
268
47
80 100
Terminal block
60 3535 60
210
55 55
537
528
（Service space）
170
210
435 435
45
36,45,56 475
22,28 469
φ9.52（3／8"）（Flare）φ12.7（1／2"）（Flare）
φ6.35（1／4"）（Flare）
（φ65） （φ65）
A
PHA001Z105

– 6–
'17 • KX-T-259
A
PHA001Z106
Hole on wall for right rear piping Hole on wall for left rear piping Gas piping Outlet for wiring（on both side） Drain hose Liquid piping
F E C D B
Symbol
A
（φ65） （φ65）
VP16
Content
Outlet for piping（on both side）
G
（Service space）
Unit
Space for installation and service when viewing from the front
768
157
48240
6.7 322.4
214.5 214.5
883 157
10
3262
19 43.56464
55
47
53 77
47
1197
339 55
150
50
（Service space）
（Service space）
（Service space）
15 100
783
715
759
55
Installation plate
Unit:mm
Note（1）The model name label is attached
on the underside of the indoor unit.
Outlet for down piping
（Refer to the above view）
60
240 43
470 363.5363.5
568.5 568.5
11 60
Terminal block
D E CAB
G
G
G
F
φ15.88（5／8"）（Flare）
φ9.52（3／8"）（Flare）
Model FDK71KXZE1

– 7–
'17 • KX-T-259
PJZ000Z321
(a) Wired remote control
Model RC-EX3
Installation space
R/C cable：0.3mm2× 2 cores
A
dapted to RoHS directive
Exterior appearance
(Munsell color)
Pearl white
(N8.5) near equivalent
(2) Remote control (Option parts)

– 8–
'17 • KX-T-259
Model RC-E5
TEMP ON/OFF
48
غ120
L C D
Wall surface
Wiring
Electrical box
䋨Not included䋩
19
Wiring specifications
Exposed mounting
23
46
11.5 11
Remote
control
outline
120
45
83.5
42
120
Remote control installation dimensions
Wiring oulet
Installation hole
12×7 Slot hole
9.5×5 Slot hole 䋨4places䋩
䋨1䋩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
X Y
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

– 9–
'17 • KX-T-259
(b) Wireless remote control (RCN-EK2)
Unit: mm
60 24
167