Mitsubishi Heavy Industries SRR25ZJ-S User manual

TECHNICAL MANUAL
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INVERTER RESIDENTIAL AIR - CONDITIONERS
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CONTENTS
1. SPECIFICATIONS ........................................................................................ 4
(2) Outdoor units ........................................................................................ 10
(3) Remote control ..................................................................................... 11
............................................................................ 8
(1) Indoor units ........................................................................................... 8
2. EXTERIOR DIMENSIONS
....................................................... 6(2) 4way ceiling cassette type (FDTC)
(1) Ceiling concealed type (SRR) .............................................................. 4
3. ELECTRICAL WIRING ................................................................................. 13
(1) Indoor units ........................................................................................... 13
4. NOISE LEVEL .............................................................................................. 16
(2) Outdoor units ........................................................................................ 15
.......................................................... 21
(2) 4way ceiling cassette type (FDTC) ....................................................... 18
(1) Ceiling concealed type (SRR) .............................................................. 16
6. RANGE OF USAGE & LIMITATIONS
.................................................................................... 23
7. CAPACITY TABLES
5. PIPING SYSTEM .......................................................................................... 20
.................................................................................. 25
8. APPLICATION DATA
(2) 4way ceiling cassette type (FDTC) ...................................................... 24
(1) Ceiling concealed type (SRR) .............................................................. 23
8.1 Installation of indoor unit ..................................................................... 25
........................................................ 29
(1) Ceiling concealed type (SRR) .............................................................. 25
(2) 4way ceiling cassette type (FDTC)
8.2 Installation of outdoor unit ................................................................... 35
9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 43
9.1 Models SRR25,35ZJ-S ........................................................................ 43
........................................................ 44
(1) Operation control function by remote control
(4) Custom cord switching procedure
............................................................................. 44(3) Auto restart function
(2) Unit ON/OFF button .............................................................................. 44
........................................ 43
.............................................................................. 46(7) Economy operation
........................................................................... 45(6) High power operation
(5) Selection of the annual cooling function .............................................. 45
(8) Timer operation .................................................................................... 46
(9) Outline of heating operation ................................................................. 46
(10) Outline of cooling operation ................................................................. 48
(11) Outline of dry (dehumidifying) operation .............................................. 48
(12) Outline of automatic operation ............................................................ 49

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'14 • SR-T-157
(13) Protective control function ................................................................... 50
........................ 76
................................................................................ 75
9.2 Models FDTC25,35VF ........................................................................... 56
(1) Remote control (option parts) ............................................................... 56
(3) Operation control function by the indoor control ................................... 58
(2) Operation control function by the wired remote control ........................ 57
(4) Operation control function by the outdoor control ................................. 69
(4) Troubleshooting procedure (If the air conditioner runs)
10.1 SRR series .............................................................................................. 75
(3) Troubleshooting procedure
(If the air conditioner does not run at all) ........ 75
(1) Cautions ................................................................................................ 75
(2) Items to check before troubleshooting ................................................. 75
........................................................................................... 95
(10) How to make sure of wireless remote control ....................................... 92
.............................................................. 93
10.2 FDTC series
(11) Outdoor unit inspection points
10.2.1 Diagnosing of microcomputer circuit ............................................ 95
(1) Selfdiagnosis function ........................................................................... 95
(5) Self-diagnosis table .............................................................................. 77
(6) Service mode (Trouble mode access function) .................................... 78
(8)
Phenomenon observed after shortcircuit, wire breakage on sensor .......... 90
(7) Inspection procedures corresponding to detail of trouble ..................... 86
(9) Checking the indoor electrical equipment ............................................. 91
10. MAINTENANCE DATA
(3) Troubleshooting at the indoor unit ........................................................ 98
(2) Troubleshooting procedure ................................................................... 98
(4) Check of anomalous operation data with the remote control ................102
(5) Inverter checker for diagnosis of inverter output ..................................103
(6) Outdoor unit inspection points ...............................................................104
(1) Wired remote control (RC-E5) ..............................................................145
(2) Wireles kit (FDTC series : RCN-TC-24W-ER) ......................................151
(3) Simple wired remote control (FDTC series : RCH-E3) .........................153
....................................................................................106
11. OPTION PARTS ............................................................................................145
(2) Troubleshooting
......................................................................................105(1) List of troubles
10.2.2 Troubleshooting flow .......................................................................105
(4) Interface kit (SC-BIKN-E) ....................................................................159
(5) Super link E board (SC-ADNA-E) .........................................................163
(6) Ceiling concealed type (SRR) option parts ...........................................165

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12. TECHNICAL INFORMATION ........................................................................169
■How to read the model name
Example: SRR 25 Z
Series code
Inverter type
Product capacity (Cooling capacity)
Model name
JX-S
Example: FDTC 25 VF
Series code
Product capacity (Cooling capacity)
Model name 〔4way ceiling cassette type〕
(2) 4way ceiling cassette type (FDTC) .......................................................171
(1) Ceiling concealed type (SRR) ...............................................................169
SRC : Outdoor unit
SRR : Ceiling concealed type

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C
RWA000Z231
Model
Item
SRR25ZJ-S
Indoor unit SRR25ZJ-S Outdoor unit SRC25ZMX-S
Power source 1 Phase, 220 - 240V, 50Hz
Operation data
Nominal cooling capacity (range) kW 2.5 ( 0.9 (Min.) - 3.2 (Max.))
Nominal heating capacity (range) kW 3.4 ( 0.9 (Min.) ~ 4.7 (Max.))
Power
consumption
Cooling
kW
0.580 ( 0.19 ~ 0.82 )
Heating 0.750 ( 0.23 ~ 1.20 )
Max power consumption 1.82
Running
current
Cooling
A
2.9 / 2.8 / 2.7 (220/ 230/ 240 V)
Heating 3.7 / 3.6 / 3.4 (220/ 230/ 240 V)
Inrush current, max current 3.7 / 3.6 / 3.4 (220/ 230/ 240 V), MAX 9
Power factor Cooling %87
Heating 88
EER Cooling 4.31
COP Heating 4.53
Sound power level Cooling
dB(A)
54 60
Heating 55 60
Sound pressure
level
Cooling Hi: 40 Me: 35 Lo: 29 47
Heating Hi: 41 Me: 38 Lo: 31 47
Silent mode sound pressure level — —
Exterior dimensions (Height x Width x Depth) mm 230 x 740 x 455 595 x 780(+62) x 290
Exterior appearance
( Munsell color ) —Stucco white ( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 22 35
Compressor type & Q'ty — RM-B5077MDE1( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.75 ( Inverter driven )
Refrigerant oil (amount, type) — 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (Type, amount, pre-charge length) kg R410A 1.2 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Q'ty Centrifugal fan x 2 Propeller fan x 1
Fan motor (stating method) W 51 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 8.5 Me: 7.0 Lo: 5.0 29.5
Heating Hi: 10.0 Me: 9.0 Lo: 6.5 27.0
Available external static pressure Pa 40 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net x 1 —
Shock & vibration absorber — Rubber sleeve (for fan motor & compressor)
Electric heater — —
Operation control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green, TIMER: Yellow, HI POWER: Green, ECONO: Green
Safety equipments
Compressor overheat protection, Overcurrent protection, Drain error protection,
Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
Installation data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 ( 1/4" ) Gas line: φ9.52 ( 3/8" )
Connecting method Flare connection Flare connection
Attached length of piping m — —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.15
Vertical height diff. between O.U. and I.U. m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP 16 ) Holes φ20 x 2 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 3.7 / 3.6 / 3.4 (220/ 230/ 240 V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
IP number IPX0 IPX4
Standard accessories Mounting kit
Option parts Wired remote control, Interface kit ( SC-BIKN-E )
Note (1) The data are measured at the following conditions.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
Adapted to RoHS directive
1. SPECIFICATIONS
(1) Ceiling concealed type (SRR)

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C
RWA000Z231
Model
Item
SRR35ZJ-S
Indoor unit SRR35ZJ-S Outdoor unit SRC35ZMX-S
Power source 1 Phase, 220 - 240V, 50Hz
Operation data
Nominal cooling capacity (range) kW 3.5 ( 0.9 (Min.) ~ 4.1 (Max.))
Nominal heating capacity (range) kW 4.2 ( 0.9 (Min.) ~ 5.1 (Max.))
Power
consumption
Cooling
kW
1.080 ( 0.19 ~ 1.26 )
Heating 1.100 ( 0.23 ~ 1.43 )
Max power consumption 1.95
Running
current
Cooling
A
5.0 / 4.7 / 4.5 (220/ 230/ 240 V)
Heating 5.1 / 4.8 / 4.6 (220/ 230/ 240 V)
Inrush current, max current 5.1 / 4.8 / 4.6 (220/ 230/ 240 V), MAX 9
Power factor Cooling %94
Heating 94
EER Cooling 3.24
COP Heating 3.82
Sound power level Cooling
dB(A)
56 62
Heating 57 62
Sound pressure
level
Cooling Hi: 42 Me: 37 Lo: 30 50
Heating Hi: 43 Me: 40 Lo: 32 50
Silent mode sound pressure level — —
Exterior dimensions (Height x Width x Depth) mm 230 x 740 x 455 595 x 780(+62) x 290
Exterior appearance
( Munsell color ) —Stucco white ( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 22 35
Compressor type & Q'ty — RM-B5077MDE1( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.90 ( Inverter driven )
Refrigerant oil (amount, type) — 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (Type, amount, pre-charge length) kg R410A 1.2 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Q'ty Centrifugal fan x 2 Propeller fan x 1
Fan motor (stating method) W 51 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 9.0 Me: 7.5 Lo: 5.5 32.5
Heating Hi: 11.0 Me: 9.5 Lo: 7.0 29.5
Available external static pressure Pa 37 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net x 1 —
Shock & vibration absorber — Rubber sleeve (for fan motor & compressor)
Electric heater — —
Operation control
Remote control Wireless remote control
Room temperature control Microcomputer thermostat
Operation display RUN: Green, TIMER: Yellow, HI POWER: Green, ECONO: Green
Safety equipments
Compressor overheat protection, Overcurrent protection, Drain error protection,
Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
Installation data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 ( 1/4" ) Gas line: φ9.52 ( 3/8" )
Connecting method Flare connection Flare connection
Attached length of piping m — —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.15
Vertical height diff. between O.U. and I.U. m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP 16 ) Holes φ20 x 2 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 5.1 / 4.8 / 4.6 (220/ 230/ 240 V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
IP number IPX0 IPX4
Standard accessories Mounting kit
Option parts Wired remote control, Interface kit ( SC-BIKN-E )
Note (1) The data are measured at the following conditions.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.

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Model
Item
FDTC25VF
Indoor unit FDTC25VF Outdoor unit SRC25ZMX-S
Panel: TC-PSA-25W-E
Power source 1 Phase, 220 - 240V, 50Hz
Operation data
Nominal cooling capacity (range) kW 2.55 [ 0.9(Min.) ~ 3.2(Max.)]
Nominal heating capacity (range) kW 3.45 [ 0.9(Min.) ~4.7(Max.)]
Power
consumption
Cooling
kW
0.6
Heating 0.84
Max power consumption 1.9
Running
current
Cooling
A
3.0 / 2.9 / 2.8 (220/ 230/ 240 V)
Heating 4.1 / 4.0 / 3.8 (220/ 230/ 240 V)
Inrush current, max current 4.1 / 4.0 / 3.8 (220/ 230/ 240 V), MAX 9
Power factor Cooling %91
Heating 92
EER Cooling 4.25
COP Heating 4.11
Sound power level Cooling
dB(A)
56 56
Heating 56 56
Sound pressure
level
Cooling PHi: 38 Hi: 36 Me: 32 Lo: 29 47
Heating PHi: 39 Hi: 38 Me: 33 Lo: 29.5 47
Silent mode sound pressure level — Cooling:41 / Heating:42
Exterior dimensions (Height x Width x Depth) mm 248 × 570 × 570 (Panel: 35 × 700 × 700) 595 x 780(+62) x 290
Exterior appearance
( Munsell color )
Plaster White
（6.8Y8.9/0.2 ）near equivalent
Stucco white
( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 15(Panel:3.5) 35
Compressor type & Q'ty — RM-B5077MDE1( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.75 ( Inverter driven )
Refrigerant oil (amount, type) — 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (Type, amount, pre-charge length) kg R410A 1.2 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Q'ty Turbo fan x 1 Propeller fan x 1
Fan motor (stating method) W 33 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min PHi: 10 Hi: 9 Me: 8 Lo: 6.5 29.5
Heating PHi: 10.5 Hi: 9.5 Me: 8.5 Lo: 7 27.0
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Pocket plastic net ×1 (Washable) —
Shock & vibration absorber Rubber sleeve(for fan motor) Rubber sleeve (for fan motor & compressor)
Electric heater — —
Operation control
Remote control Wired : RC-E5,RC-EX1A(option), Wireless : RCN-TC-24W-ER (option)
Room temperature control Microcomputer thermostat
Operation display —
Safety equipments
Compressor overheat protection, Overcurrent protection, Drain error protection,
Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
Installation data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 ( 1/4" ) Gas line: φ9.52 ( 3/8" )
Connecting method Flare connection Flare connection
Attached length of piping m — —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.15
Vertical height diff. between O.U. and I.U. m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP 20 ) Holes φ20 x 2 pcs
Drain pump, max lift height mm Built-in Drain pump, 600mm —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 4.1 / 4.0 / 3.8 (220/ 230/ 240 V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
IP number IPX0 IPX4
Standard accessories Mounting kit, Drain hose
Option parts Wired remote control, Interface kit ( SC-BIKN-E ), Wireless remote control
Note (1) The data are measured at the following conditions.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
D
RWA000Z234
(2) 4way ceiling cassette type (FDTC)

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'14 • SR-T-157
Model
Item
FDTC35VF
Indoor unit FDTC35VF Outdoor unit SRC35ZMX-S
Panel: TC-PSA-25W-E
Power source 1 Phase, 220 - 240V, 50Hz
Operation data
Nominal cooling capacity (range) kW 3.6 ( 0.9 (Min.) ~ 4.1 (Max.))
Nominal heating capacity (range) kW 4.25 ( 0.9 (Min.) ~ 5.1 (Max.))
Power
consumption
Cooling
kW
1.07
Heating 1.16
Max power consumption 2.05
Running
current
Cooling
A
4.9 / 4.7 / 4.5 (220/ 230/ 240 V)
Heating 5.3 / 5.1 / 4.9 (220/ 230/ 240 V)
Inrush current, max current 5.3 / 5.1 / 4.9 (220/ 230/ 240 V), MAX 9
Power factor Cooling %99
Heating 99
EER Cooling 3.36
COP Heating 3.66
Sound power level Cooling
dB(A)
58 58
Heating 58 58
Sound pressure
level
Cooling PHi: 41 Hi: 40 Me: 36 Lo: 30 50
Heating PHi: 43 Hi: 42 Me: 35 Lo: 32 50
Silent mode sound pressure level — Cooling:45 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 248 × 570 × 570 (Panel: 35 × 700 × 700) 595 x 780(+62) x 290
Exterior appearance
( Munsell color )
Plaster White
( 6.8Y8.9/0.2 ) near equivalent
Stucco white
( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 15(Panel:3.5) 35
Compressor type & Q'ty — RM-B5077MDE1( Rotary type ) x 1
Compressor motor (Starting method) kW — 0.90 ( Inverter driven )
Refrigerant oil (amount, type) — 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (Type, amount, pre-charge length) kg R410A 1.2 in outdoor unit (incl. the amount for the piping of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Fan type & Q'ty Turbo fan x 1 Propeller fan x 1
Fan motor (stating method) W 33 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min PHi: 11 Hi: 9.5 Me: 9 Lo: 7 32.5
Heating PHi: 11.5 Hi: 10.0 Me: 9 Lo: 8 29.5
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Pocket plastic net ×1 (Washable) —
Shock & vibration absorber Rubber sleeve (for fan motor) Rubber sleeve (for fan motor & compressor)
Electric heater — —
Operation control
Remote control Wired : RC-E5,RC-EX1A(option), Wireless : RCN-TC-24W-ER (option)
Room temperature control Microcomputer thermostat
Operation display —
Safety equipments
Compressor overheat protection, Overcurrent protection, Drain error protection,
Frost protection, Serial signal error protection, Indoor fan motor error protection,
Heating overload protection( High pressure control ), Cooling overload protection
Installation data
Refrigerant piping size (O.D) mm Liquid line: φ6.35 ( 1/4" ) Gas line: φ9.52 ( 3/8" )
Connecting method Flare connection Flare connection
Attached length of piping m — —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.15
Vertical height diff. between O.U. and I.U. m Max.10 ( Outdoor unit is higher ) / Max.10 ( Outdoor unit is lower )
Drain hose Hose connectable ( VP 20 ) Holes φ20 x 2 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 5.3 / 5.1 / 4.9 (220/ 230/ 240 V)
Interconnecting wires Size x Core number 1.5mm2x 4 cores ( Including earth cable ) / Terminal block ( Screw fixing type )
IP number IPX0 IPX4
Standard accessories Mounting kit, Drain hose
Option parts Wired remote control, Interface kit ( SC-BIKN-E ), Wireless remote control
D
RWA000Z234
Note (1) The data are measured at the following conditions.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO5151-T1
Heating 20˚C — 7˚C 6˚C
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) Sound level indicates the value in an anechoic chamber. During operation these values are somewhat higher due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.

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'14 • SR-T-157
2. EXTERIOR DIMENSIONS
(1) Indoor units
(a) Ceiling concealed type (SRR)
Models SRR25ZJ-S, 35ZJ-S
8-φ2.8
Holes for tapping screws（φ4）
740 105.7
230
150
135
75
38
11.2
10522090220105
41 170 19
Terminal block
Air inlet
Air outlet B
A
C
FIG.A
FIG.B
Unit:mm
Note（1）The model name label is attached
on the lid of the control box.
（2）It takes the interface kit （SC-BIKN-E）
to connect the wired remote control.
236
30
100540100
52 148 30
455
253
325.4
67035 35
515
30
30
(Suspension bolts pitch)
(Suspension bolts pitch)
Control Box
D
E
19
（Option）
Wired remote controlWireless remote control
□120
60
150
17.3
D
C
B
A
Symbol Content
E
φ9.52（3／8"）
（Flare）
φ6.35（1／4"）（Flare）
VP16
（M8）
（φ35）
Suspension bolts
Drain piping
Liquid piping
Gas piping
Power supply intake
Model SRR25ZJ-S,
35ZJ-S
9-φ2.8
Holes for tapping screws（φ4）
6-M4
For hanger plate
☆☆ ☆ ☆☆
710
174.4
177
69423
10 24
168 168 168 168
160 40 190
30.3
703
23
21
82 574 84
670
20
120
32 20 80 80 40
150
4040
203.7
11.3
15
15 15
18.5
11 13
18.5
1024
35 35
FIG.A
FIG.B
In case of filter guide taken off
(Air inlet from lower)
In case of filter guide installed
(normal condition)
(Air inlet from rear)
In case of filter guide installed
(option)
In case of rear panel taken off
11-φ2.8
Holes for tapping screws（φ4）
Holes for tapping screws（φ4）
710
168 168 168 168
10 10
2424
15 15
5-φ3.3( ☆ Mark only)
B
RJD000Z502

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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）
φ 6.35（1／4"）（Flare）
Gas piping
A
Symbol
φ 9.52
Content
（Knock out）
φ 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 control
19
□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-φ4
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
□413
□700
Suspension bolts pitch
Suspension bolts pitch
Control
box
（ ）
Installed on site（ ）
Decorative panel
（ ）
（ ）
21
35
Air supply Air return
grille
（3／8"）（Flare）
(b) 4way ceiling cassette type (FDTC) Models FDTC25VF, 35VF

-
10
-
'14 • SR-T-157
(2) Outdoor units
Models SRC25ZMX-S, 35ZMX-S
RCV000Z020
( )
φ 9.52（3／8"）（Flare）
Content
CPipe／cable draw-out hole
EAnchor bolt hole
Drain discharge hole
Symbol
B
AService valve connection（gas side）
M10×4places
φ 20×2places
Service valve connection（liquid side）φ
6.35（1／4"）（Flare）
D
390.6
D
63.4
290
69.4
E
50.6
12
24.3
312.5
351.6
14.8
17.9
61.9
158.4
510
780
390.6
111.6
390.6
595
15.8
97.7 42.5
B
138.4 33.5
C
40°
40°
A
Terminal block 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 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 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.
Minimum installation space
Unit:mm
L2
Intake
Outlet
Intake L3
L1
Service
space
L4

-
11
-
'14 • SR-T-157
150
60 17
Model FDTC series (Option parts)
60 17.3
150
Unit: mm
(3) Remete control
Models SRR series

-
12
-
'14 • SR-T-157
(b) Wired remote control (option parts)
PJZ000Z295
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
Exterior appearance
(Munsell color)
Pearl White
(N 8.5) near equivalent
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

-
13
-
'14 • SR-T-157
B
RWA000Z230
3. ELECTRICAL WIRING (1) Indoor units (a) Ceiling concealed type (SRR) Models SRR25ZJ-S, 35ZJ-S
Item
Meaning of Marks
Description Item Description
Color Marks
Mark Color Mark Color
T
TO OUTDOOR UNIT
RECEIVER
BL YE BK RD WH
CNG
DISPLAY
WIRELESS
CNY
CNE
BK
BK
PRINTED CIRCUIT
BOARD
F
250V 3.15A
Va
CNU
1 3 54 6
G
Y／G
1 2/N 3
WH
BK
Y／G
RD
S／N
JRD
BK
WH
BOX
CONTROL
U
8
2 2 2
RD
CNW
M
F
250V
0.16A
RD
OR
5
1～
WH
WH
BK
2
BK
10
BK
L
CNS
FM I
DM
Th1 Th2 Th3
t
TO OUTDOOR UNIT
POWER WIRES
SIGNAL WIRE
1
2/N
3
Power source
1 phase 220 - 240 V 50Hz
BK
BL
OR
RD
YE
WH
Y／G
White
Yellow／Green
Black
Blue
Orange
Red
Yellow ConnectorCNE-CNY
FM
DM
Fuse
Fan motor
Drain motor
Th2
Th3
Room temp. sensor
Heat exch. sensor 1
Heat exch. sensor 2
F
Th1
I
FS Float Switch
T Terminal block
Va Varistor
M
INTERFACE KIT
SC-BIKN-E
FS
t t

-
14
-
'14 • SR-T-157
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 control
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 control）
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 control communication
SW2
OrangeOR
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 control line.
5. Do not put remote control 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 control）.
indoor unit and outdoor unit）,
C
PJA003Z340
(b) 4way ceiling cassette type (FDTC) Models FDTC25VF, 35VF

-
15
-
'14 • SR-T-157
(2) Outdoor units
Models SRC25ZMX-S, 35ZMX-S
RWC000Z272
Description
Item
Connector
Electric expansion valve（coil）
EEV
Fan motorFMo
ReactorL
Terminal blockTB1
Compressor motorCM
Solenoid valve for 4 way valve20S
Heat exchanger sensor（outdoor unit）
TH2
Outdoor air temp.sensorTH3
TH4 Discharge pipe temp.sensor
CN20S
CNTH
CNEEV
CNFAN
Color
RD
Mark
OrangeOR
Yellow／Green Y／G
Black
BK
YellowY
WhiteWH
Red
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.
Model
MAX running current Power cable size
（mm ）
2
（A）
Power cable length
（m）
indoor-outdoor
wire size x number
Earth wire size
25 2.0 32
35 1.5mm x 3
2
81.5
（mm ）
2
3
1
2
TO INDOOR UNIT
POWER WIRES
SIGNAL WIRE
N
POWER SOURCE
TB1
TERMINAL
BLOCK
L
N
1
3
2
（BK）
R.IN
250V 15A
（BK）
（WH）
（Y／G）
（Y／G）
（Y／G）
（RD）C-2
G1
G2
S.IN
FILTER
NOISE
F1
250V 3.15A
T1 T2
（OR）
（Y）
L
20S
22 2 2
CN20S CNTH CNEEV
TH2 TH3 TH4
M
EEV
CIRCUIT
POWER
SWITCHING
F4
250V 10A
CIRCUIT
PAM
250V 20A
F2
PCB ASSY PWB1
TRANSISTOR
POWER
（BK）
（WH）
（RD）
N
P
W
V
U
W
V
U
M
3～
CM
F3 250V 1A
CNFAN
FMo
M
〜220ｰ240V 50Hz

-
16
-
'14 • SR-T-157
(Outdoor Unit)
Model SRC25ZMX-S
Noise
Level
Cooling 47 dB(A)
Heating 47 dB(A)
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Mid Octave Band frequency (Hz)
Sound Pressure Level (dB)
(standard 2×10-5 P a)
10
20
30
40
50
60
70
N50
N4 0
N6 0
N7 0
N2 0
N3 0
× ...... Cooling, Heating
(1) Ceiling concealed type (SRR)
Model SRR25ZJ-S
(Indoor Unit)
Model SRR25ZJ-S
Noise
Level
Cooling 40 dB(A)
Heating 41 dB(A)
× ...... Cooling, Heating
Condition ISO-T1, JIS C 9612
10
20
30
40
50
60
70
10
20
30
40
50
60
70
Sound Pressure Level (dB)
(standard 2×10-5 Pa)
63 125 250 500 1000 2000 4000 8000
Mid Octave Band frequency (Hz)
N50
N30
N40
N60
N20
N70
Mike position: at highest noise level in position as mentioned below
Distance from front side 1m
Mike position
0.8m
1m
Unit Mike position
(Center & Low points)
1.5 m
Unit
Mike (at center
& below unit)
Mike position
4. NOISE LEVEL

-
17
-
'14 • SR-T-157
Model SRR35ZJ-S
(Outdoor Unit)
Model SRC35ZMX-S
Noise
Level
Cooling 50 dB(A)
Heating 50 dB(A)
× ...... Cooling, Heating
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Mid Octave Band frequency (Hz)
Sound Pressure Level (dB)
(standard 2×10-5 P a)
10
20
30
40
50
60
70
N5 0
N3 0
N4 0
N6 0
N7 0
N2 0
(Indoor Unit)
Model SRR35ZJ-S
Noise
Level
Cooling 42 dB(A)
Heating 43 dB(A)
× ...... Cooling, Heating
Condition ISO-T1, JIS C 9612
10
20
30
40
50
60
70
10
20
30
40
50
60
70
Sound Pressure Level (dB)
(standard 2×10-5 Pa)
63 125 250 500 1000 2000 4000 8000
Mid Octave Band frequency (Hz)
N50
N30
N40
N60
N70
N20
Mike position: at highest noise level in position as mentioned below
Distance from front side 1m
Mike position
0.8m
1m
Unit Mike position
(Center & Low points)
1.5 m
Unit
Mike (at center
& below unit)
Mike position

-
18
-
'14 • SR-T-157
(Indoor Unit)
Model FDTC25VF
Noise
Level
Cooling 38 dB(A)
Heating 39 dB(A)
× ...... Cooling, Heating
N50
N30
N40
N60
N70
N20
Sound Pressure Level (dB)
(standard 2×10-5 P a)
Mid Octave Band frequency (Hz)
10
20
30
40
50
60
70
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
(Outdoor Unit)
Model SRC25ZMX-S
Noise
Level
Cooling 47 dB(A)
Heating 47 dB(A)
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Mid Octave Band frequency (Hz)
Sound Pressure Level (dB)
(standard 2×10-5 P a)
10
20
30
40
50
60
70
N5 0
N4 0
N6 0
N7 0
N2 0
N3 0
× ...... Cooling, Heating
Condition ISO-T1,JIS C 9612
(2) 4way ceiling cassette type (FDTC)
Model FDTC25VF
Mike position: at highest noise level in position as mentioned below
Distance from front side 1m
Mike position
0.8m
1m
Unit Mike position
(Center & Low points)
1.5 m
Mike position

-
19
-
'14 • SR-T-157
(Indoor Unit)
Model FDTC35VF
Noise
Level
Cooling 41 dB(A)
Heating 43 dB(A)
× ...... Cooling, Heating
(Outdoor Unit)
Model SRC35ZMX-S
Noise
Level
Cooling 50 dB(A)
Heating 50 dB(A)
× ...... Cooling, Heating
Condition ISO-T1,JIS C 9612
10
20
30
40
50
60
70
63 125 250 500 1000 2000 4000 8000
Mid Octave Band frequency (Hz)
Sound Pressure Level (dB)
(standard 2×10-5 P a)
10
20
30
40
50
60
70
N5 0
N3 0
N4 0
N6 0
N7 0
N2 0
N50
N30
N40
N60
N70
N20
Sound Pressure Level (dB)
(standard 2×10-5 P a)
10
20
30
40
50
60
70
10
20
30
40
50
60
70
Mid Octave Band frequency (Hz)
63 125 250 500 1000 2000 4000 8000
Model FDTC35VF
Mike position: at highest noise level in position as mentioned below
Distance from front side 1m
Mike position
0.8m
1m
Unit Mike position
(Center & Low points)
1.5 m
Mike position