Mitsubishi Heavy Industries FDTC25VF User manual

.BOVBM/Pht43,5
INVERTER RESIDENTIAL AIR CONDITIONERS
(Split system, air to air heat pump type)
Ceiling cassette-4way compact type
'%5$7'
'%5$7'
TECHNICAL MANUAL

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1
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'12 • SRK-T-126
'10 • SR-T-091
CONTENTS
1. SPECIFICATIONS ........................................................................................ 3........................................................................................ 3
(2) Outdoor units ....................................................................................... 6
..................................................... 13
(3) Wired remote controller
................................................................................ 7
......................................................................... 5
(1) Indoor units .......................................................................................... 5
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING .............................................................................. 8
(1) Indoor units .......................................................................................... 8
4. NOISE LEVEL ............................................................................................ 10
(2) Outdoor units ....................................................................................... 9
9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER .............. 29
6. RANGE OF USAGE & LIMITATIONS
................................................................................... 15
7. CAPACITY TABLES
5. PIPING SYSTEM ...................................................................................... 12
.................................................................................. 16
8. APPLICATION DATA
8.1 Installation of indoor unit ..................................................................... 16
8.2 Installation of outdoor unit ................................................................... 22
9.1 Wired remote controller (option parts) ................................................ 29
9.2 Operation control function by the wired remote controller ............... 30
9.3 Operation control function by the indoor controller ........................ 31
9.4 Operation control function by the outdoor controller ....................... 40
............................................................................. 46
10.1 Diagnosing of microcomputer circuit ............................................ 46
(3) Troubleshooting at the indoor unit ..................................................... 49
(1) Selfdiagnosis function .......................................................................... 46
(2) Troubleshooting procedure ................................................................. 49
10. MAINTENANCE DATA
(4) Check of anomalous operation data with the remote controller .......... 53
(5) Inverter checker for diagnosis of inverter output ................................ 54
(6) Outdoor unit controller failure diagnosis circuit diagram ..................... 55

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'12 • SRK-T-126
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gs324
.................................................................................... 574ROUBLESHOOTING
...................................................................................... 56,ISTOFTROUBLES
10.2 Troubleshooting flow .......................................................................... 56
11.1 Instullation of wired remote controller (RC-E5) ............................... 95
11.2 Wireles kit (RCN-TC-24W-ER)
11. OPTION PARTS ....................................................................................... 95
11.3 Simple wired remote controoller (RCH-E3)
■How to read the model name
Example:
・Indoor unit
・Outdoor unit
SRC 25 Z
Series code
Inveter type
Product capacity
Model name 〔Outdoor unit〕
JX-S
FDTC 25 VF
Series code
Product capacity
Model name 〔Ceiling cassette-4way compact type〕
............................................................101
......................................105

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'12 • SRK-T-126
Model
Item
FDTC25VF
Indoor unit FDTC25VF Outdoor unit SRC25ZJX-S
Panel TC-PSA-25W-E
Power source 220/230/240V ~ 50Hz
Operation data Cooling Heating
Nominal capacity kW 2.55 [ 0.9 (Min.) ~ 3.2 (Max.)] 3.45 [ 0.9 (Min.) ~ 4.7 (Max.)]
Power consumption kW 0.6 0.84
Running current A 3.0/2.9/2.8 4.1/4.0/3.8
Power factor % 91 92
Inrush current A 4.1
Sound Pressure Level dB(A) Cooling P-Hi : 38 Hi : 36 Me : 32 Lo : 29
Heating P-Hi : 39 Hi : 38 Me : 33 Lo : 29.5 47
Exterior dimensions
Height x Width x Depth mm Unit 248 × 570 × 570 Panel 35 × 700 × 700 595 x 780 x 290
Exterior appearance
(Munsell color)
Plaster White
( 6.8Y8.9/0.2 ) near equivalent
Stucco White
( 4.2Y7.5/1.1 ) near equivalent
Net weight kg UNIT 15 PANEL 3.5 38
Refrigerant equipment
Compressor type & Q'ty — RM-B5077MDE1 (Rotary type) x 1
Starting method — Direct line start
Refrigerant oil — 0.35 (DIAMOND FREEZE MA68)
Heat exchanger Louver fin & inner grooved tubing M shape fin & inner grooved tubing
Refrigerant control — Electronic expansion valve
Air handling equipment
Fan type & Q'ty Turbo fan × 1 Propeller fan × 1
Motor <Starting method> W 33 <Direct line start> 24 <Direct line start>
Air flow (Standard) CMM Cooling P-Hi : 10 Hi : 9 Me : 8 Lo : 6.5
Heating P-Hi : 10.5 Hi : 9.5 Me : 8.5 Lo : 7
Cooling 29.5
Heating 27.0
Available static pressure Pa 0 —
Outdoor air intake Not possible —
Air filter, Q'ty Pocket plastic net × 1 (Washable) —
Shock & vibration absorber Rubber sleeve (for fan motor) Rubber sleeve (for Compressor)
Insulation (noise & heat) Polyurethane form —
Electric heater W — —
Remote controller wired : RC-E5, RC-EX1A (option) wireless : RCN-TC-24W-ER (option)
Room temperature control Thermostat by electronics —
Safety equipment Overload protection for fan motor
Frost protection thermostat
Internal thermostat for fan motor
Abnormal discharge temperature protection.
Installation data
Refrigerant piping size mm Liquid line : I/U φ6.35 (1/4") Pipe φ6.35 (1/4") × 0.8 O/U φ6.35 (1/4")
Gas line :
φ9.52 (3/8") φ9.52 (3/8") × 0.8 φ9.52 (3/8")
Connecting method Flare piping Flare piping
Refrigerant line (one way) length Max. 15m
Vertical height difference between
outdoor unit and indoor unit
Max. 10m (Outdoor unit is higher)
Max. 10m (Outdoor unit is lower)
Refrigerant Quantity R410A 1.2kg in outdoor unit (incl. the amount for the piping of : 15m)
Drain pump Built-in Drain pump —
Drain Hose Connectable with VP20 —
Insulation for piping Necessary (Both liquid & Gas lines)
Standard Accessories Mounting kit, Drain hose Drain elbow, Drain hole grommet
Item Indoor air temperature Outdoor air temperature
Operation DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C
Heating 20˚C 7˚C 6˚C
(2) This packaged air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound pressure level indicates the value in an anechoic chamber. During operation these value are somewhat higher due to
ambient temperature.
(4) The operation data indicates when the air-conditioner is operated at 220/230/240V 50Hz.
(5) When wireless remote controller is used, fan is 3 speed setting (Hi-Me-Lo) only.
1. SPECIFICATIONS Adapted to RoHS directive
Notes (1) The data are measured at the following conditions when the air flow is high mode.
B
RWA000Z234

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4
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'12 • SRK-T-126
Model
Item
FDTC35VF
Indoor unit FDTC35VF Outdoor unit SRC35ZJX-S
Panel TC-PSA-25W-E
Power source 220/230/240V ~ 50Hz
Operation data Cooling Heating
Nominal capacity kW 3.6 [ 0.9 (Min.) ~ 4.1 (Max.)] 4.25 [ 0.9 (Min.) ~ 5.1 (Max.)]
Power consumption kW 1.07 1.16
Running current A 4.9/4.7/4.5 5.3/5.1/4.9
Power factor % 99 99
Inrush current A 5.3
Sound Pressure Level dB(A) Cooling P-Hi : 41 Hi : 40 Me : 36 Lo : 30
Heating P-Hi : 43 Hi : 42 Me : 35 Lo : 32 50
Exterior dimensions
Height x Width x Depth mm Unit 248 × 570 × 570 Panel 35 × 700 × 700 595 x 780 x 290
Exterior appearance
( Munsell color )
Plaster White
( 6.8Y8.9/0.2 ) near equivalent
Stucco White
( 4.2Y7.5/1.1 ) near equivalent
Net weight kg UNIT 15 PANEL 3.5 38
Refrigerant equipment
Compressor type & Q'ty — RM-B5077MDE1 (Rotary type) x 1
Starting method — Direct line start
Refrigerant oil — 0.35 (DIAMOND FREEZE MA68)
Heat exchanger Louver fin & inner grooved tubing M shape fin & inner grooved tubing
Refrigerant control — Electronic expansion valve
Air handling equipment
Fan type & Q'ty Turbo fan × 1 Propeller fan × 1
Motor <Starting method> W 33 <Direct line start> 24 <Direct line start>
Air flow (Standard) CMM Cooling P-Hi : 11 Hi : 9.5 Me : 9 Lo : 7
Heating P-Hi : 11.5 Hi : 10.0 Me : 9 Lo : 8
Cooling 32.5
Heating 29.5
Available static pressure Pa 0 —
Outdoor air intake Not possible —
Air filter, Q'ty Pocket plastic net × 1 (Washable) —
Shock & vibration absorber Rubber sleeve (for fan motor) Rubber sleeve (for Compressor)
Insulation (noise & heat) Polyurethane form —
Electric heater W — —
Remote controller wired : RC-E5, RC-EX1A (option) wireless : RCN-TC-24W-ER (option)
Room temperature control Thermostat by electronics —
Safety equipment Overload protection for fan motor
Frost protection thermostat
Internal thermostat for fan motor
Abnormal discharge temperature protection.
Installation data
Refrigerant piping size mm Liquid line : I/U φ6.35 (1/4") Pipe φ6.35 (1/4") × 0.8 O/U φ6.35 (1/4")
Gas line :
φ9.52 (3/8") φ9.52 (3/8") × 0.8 φ9.52 (3/8")
Connecting method Flare piping Flare piping
Refrigerant line (one way) length Max. 15m
Vertical height difference between
outdoor unit and indoor unit
Max. 10m (Outdoor unit is higher)
Max. 10m (Outdoor unit is lower)
Refrigerant Quantity R410A 1.2kg in outdoor unit (incl. the amount for the piping of : 15m)
Drain pump Built-in Drain pump —
Drain Hose Connectable with VP20 —
Insulation for piping Necessary (Both liquid & Gas lines)
Standard Accessories Mounting kit, Drain hose Drain elbow, Drain hole grommet
Item Indoor air temperature Outdoor air temperature
Operation DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C
Heating 20˚C 7˚C 6˚C
(2) This packaged air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound pressure level indicates the value in an anechoic chamber. During operation these value are somewhat higher due to
ambient temperature.
(4) The operation data indicates when the air-conditioner is operated at 220/230/240V 50Hz.
(5) When wireless remote controller is used, fan is 3 speed setting (Hi-Me-Lo) only.
Adapted to RoHS directive
Notes (1) The data are measured at the following conditions when the air flow is high mode.
B
RWA000Z234

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'12 • SRK-T-126
2. EXTERIOR DIMENSIONS (1) Indoor units Models FDTC25VF, 35VF
C
PJA003Z338
D
G
F
C
B
Holeforwiring
Suspensionbolts
Drainpiping
Liquidpiping
（M10orM8）
VP20（I.D.20,O.D.26）Note（2）
ф
6.35（1／4"）（Flare）
Gaspiping
A
Symbol
:
ф
9.52
Content
（Knockout）
ф
25
（２）Preparetheconnectingsocket（VP20）onsite.
Notes（１）Themodelnamelabelisattachedonthecontrolboxlid.
（３）Thisunitisdesignedfor2x2gridceiling.
provideaninspectionportonthecontrolboxside.
Ifitisinstalledonaceilingotherthan2x2gridceiling,
G
Obstacle
1000
1000
ormore
600
295
Remotecontroller
19
口120
Max.Drainlift（ ）
orless
〜325
Spaceforinstallationandservice
ormore
Option（ ）
Makeaspaceof4000ormorebetween
theunitswheninstallingmorethanone.
Airoutletopening
forducting
6-Ø4
Holesfor
Hole
60
140
100
100
88
140
tappingscrews
ABC F
145 325
□570
45
ormore
132
192
35
88
210
248
Hangerplatefor
suspensionbolt
G
G
G
D
Drainhosepiece
Accessory
185
190 223
326
350
530
530
556
67
200 48
口413
口700
Suspensionboltspitch
Suspensionboltspitch
Control
box
（ ）
Installedonsite（ ）
Decorativepanel
（ ）
（ ）
21
35
Airsupply Airreturn
grille
:
ф
12.7
Model 25,35
40-60
（3／8"）（Flare）
（1／2"）（Flare）
□120 19
Remotecontroller
（Option）

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'12 • SRK-T-126
(2) Outdoor units
Models SRC25ZJX-S, 35ZJX-S
L2
Intake
Outlet
Intake L3
L1
Minimum installation space
Service
space
( )
L4
L2
L3
L4
L1
100
100
250
Open
Ｉ ＩＩ
Open
250
80
280
ＩＩＩ
280
Open
80
75
Examples of
Dimensions
installation
ＩＶ
180
Open
80
Open
Notes
（1）It must not be surrounded by walls on the four sides.
（2）The unit must be fixed with anchor bolts. An anchor bolt must not
protrude more the 15mm.
（3）Where the unit is subject to strong winds, lay it in such
a direction that the blower outlet faces perpendicularly
to the dominant wind direction.
（4）Leave 1m or more space above the unit.
（5）A wall in front of the blower outlet must not exceed the units height.
（6）The model name label is attached on the lower right corner of the front panel.
φ9.52（3／8"）（Flare）
Content
C Pipe／cable draw-out hole
E Anchor bolt hole
Drain discharge hole
Symbol
B
A Service valve connection（gas side）
M10 × 4places
φ20 × 2places
Service valve connection（liquid side）
φ6.35（1／4"）（Flare）
D
40°
40°
138.4 33.5
Terminal block
C
B
A
97.7 42.5
15.8
595
63.4
390.6
390.6
69.4
111.6 510 158.4
780 61.9
17.9
14.8 312.5 24.3
351.6
50.6
12
290
E
D
Unit:mm
A
RCV000Z007

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(3) Wired remote controller (option parts)
Model : RC-E5
PJZ000Z295

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3. ELECTRICAL WIRING (1) Indoor units Models FDTC25VF, 35VF
Control PCB
Power PCB
XR1
XR2
XR3
XR4
XR5（Remote operation input:volt-free contact）
Option
1
2
3
4
5
6
+12
SW2
SW6
SW5
SW7
LED・2 LED・3
X
Y
1
3
X
Y
t°
Remote controller
TB2
WH
BK
CNW3
RD
CNW2
RD
CNW4
BL
CNW1
BL
CNB
WH
CNN
Y
CNH
BK
CNI
BL
CNT
BL
1
2
WH
RD F200（3.15A）
F201（3.15A）
F202
（1.0A）
F203
（0.16A）
X4
5
3
CNW0
WH
7
TB1
CNJ
WH
（Operation）
（Heating）
（CompressorON）
（Inspection）
Earth
Y／GN
Y／GN
Th C
1 3
M
1〜
CNR
WH
DM
WH BR
Y Y
2 1
CNR2
BL
M
1 4 5 6 7
CNM
WH
FM I
5 6 4 3 2
RD BL BR OR WH
RD BL BR OR WH
5 6 4 3 2
RD BL BR OR WH
CNM3
RD
CNM4
WH
BK
t°
BK
BK
t°
BK
1
2
1
2
BK
t°
BK
3
4
Th I -R2
Th I -R3
Th I -A
BL
BL
RD
RD
Y
Y
CNH2
WH
BK
t°
BK
5
6
Th I -R1
BK
BK
CNN2
BK
RD
RD
1
2
FS
WH
WH
CNI2
WH
3
4
5
6
7
8
9
10
1
2
1
2
3
4
5
6
1
2
1
2
BL
BL
RD
RD
Y
Y
BK
BK
WH
WH
CNC
WH
Power circuit
Y／GN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
M
LM1
M
LM2
M
LM3
M
LM4
1
2
3
4
5
BK
BK
BK
BK
BK
CNJ2
WH
2
1
3
4
5
1
2
3
4
5
BL
BL
BL
BL
BL
1
2
3
4
5
RD
RD
RD
RD
RD
1
2
3
4
5
3
Power source line
Signal line
1 2
3
［ ］
indoor unit and outdoor unit
Connecting line between
BL 1
Y／GN
Y／GN
Y／GN
6
7
8
9
BK
BK
BK
BK
10 BK
11 BK
12 BK
13 BK
14 BK
15 BK
16 BK
17 BKBK
18 BK
19 BK
20 BK
1
2
3
4
5
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BKBK
BK
BK
BK
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
I
FS
LM1〜4DM
FM
Float switch
Drain motor
Fan motor
Louver motor
Indication lamp（Red-Inspection）
Indication lamp
LED・3
F200〜203 Fuse
LED・2
ConnectorCNB〜Z
（Green-Normal operation）
Model capacity settingSW6
Operation check,Drain motor test runSW7-1
SW5
Thermistor（Remote controller）
Thermistor（Heat exchanger）
Thermistor（Return air）
Thc
Th I -R1,2,3
Th I -A
TB2 Terminal block（Signal line）（□mark）
Relay for DMX4
■mark Closed-end connector
TB1 Terminal block（Power source）
（□ mark）
Remote controller communication
SW2
Orange
OR
BR Brown
BK Black
Blue
Color Marks
BL
Mark Color
RedRD
Y
Y／GN
WH
Yellow
Yellow／Green
White
Plural units Master／Slave setting
address
Notes 1. indicates wiring on site.
3. See the wiring diagram of outside unit about the line between
4. Use twin core cable（0.3mm X2）at remote controller line. See spec
sheet of remote controller in case that the total length is more than 100m.
5. Do not put remote controller line alongside power source line.
2
inside unit and outside unit.
2. TB1 is the terminal block for heavy current（connecting line between
and TB2 is the terminal block for weak current（remote controller）.
indoor unit and outdoor unit）,
C
PJA003Z340

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'12 • SRK-T-126
Color
RD
Mark
OrangeOR
Yellow／GreenY／G
BlackBK
YellowY
WhiteWH
Red
DescriptionItem
Connector
Electric expansion valve（coil）
EEV
Fan motor
FMo
Reactor
L
Terminal block
T
Compressor motor
CM
Solenoid valve for 4 way valve
20S
Heat exchanger sensor（outdoor unit）
TH1
Outdoor air temp.sensor
TH2
TH3 Discharge pipe temp.sensor
CN20S
CNTH
CNEEV
CNFAN
Model
Power cable, indoor-outdoor connecting wires
The specifications shown in the above table are for units without heaters. For units with heaters, refer
to the installation instructions or the construction instructions of the indoor unit.
Switchgear of Circuit breaker capacity which is calculated from MAX. over current should be chosen
along the regulations in each country.
The cable specifications are based on the assumption that a metal or plastic conduit is used with no
more than three cables contained in a conduit and a voltage drop is 2%. For an installation falling
outside of these conditions, please follow the internal cabling regulations. Adapt it to the regulation
in effect in each country.
25
8 2.0 32 1.5mm2x 3 1.5mm2
35
3
12
[ ]
N
～220ｰ240V 50Hz／～220V 60Hz
POWER SOURCE
（BK）
C-2
G1
（RD）
（Y／G）
S.IN（WH）
R.IN
（BK）
（WH）
（RD）
PWB ASSY
250V 20A
F2
F3 250V 1A
+ +
F4
250V 10A
F1
250V 2A
CIRCUIT
PAM
SWITCHING POWER
CIRCUIT
N
P
W
V
U
TRANSISTOR
POWER
W
V
U
FILTER
NOISE
CN20S CNTH CNEEV
CNFAN M
M
3～
250V 15A
（Y／G）
T1 T2
（OR）
（Y）
M
t゜
TH1 TH2 TH3 EEV
FMo
CM
t゜t゜
t゜
5 or 6 wires
TERMINAL
L
N
1
3
2
BLOCK
T
TO INDOOR UNIT
POWER WIRES
SIGNAL WIRE
20S
L
MAX running current Power cable size
（mm ）
2
（A）
Power cable length
（m）
indoor-outdoor
wire size x number
Earth wire size
(2) Outdoor units
Models SRC25ZJX-S, 35ZJX-S
B
RWC000Z227