Mitsubishi Heavy Industries SRK20ZJ-S User manual

TECHNICAL MANUAL
Manual No.'10•SR-T-091
INVERTER RESIDENTIAL AIR CONDITIONERS
(Split system, air to air heat pump type)
Wall mounted type
SRK20ZJ-S
SRK25ZJ-S
SRK35ZJ-S
SRK50ZJ-S
SRK20ZJX-S
SRK25ZJX-S
SRK35ZJX-S
SRK50ZJX-S
SRK60ZJX-S
Floor standing type
SRF25ZJX-S
SRF35ZJX-S
SRF50ZJX-S
Ceiling concealed type
SRR25ZJ-S
SRR35ZJ-S
Ceiling cassette-4way compact type
FDTC25VD
FDTC35VD

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'10 • SR-T-091
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CONTENTS
1. SPECIFICATIONS ........................................................................................ 5
(2) Outdoor units ....................................................................................... 26
..................................................... 60
(3) Remote controller ................................................................................ 30
(1) Wall mounted type (SRK) ..................................................................... 5
......................................................................... 21
(2) Floor standing type (SRF)
(1) Indoor units .......................................................................................... 21
2. EXTERIOR DIMENSIONS
....................................... 19(4) Ceiling cassette-4way compact type (FDTC)
(3) Ceiling concealed type (SRR) .............................................................. 17
.................................................................... 14
3. ELECTRICAL WIRING .............................................................................. 32
(1) Indoor units .......................................................................................... 32
4. NOISE LEVEL ............................................................................................ 41
(2) Outdoor units ....................................................................................... 37
(1) Wall mounted type (SRK) ..................................................................... 41
(2) Floor standing type (SRF) .................................................................... 50
(4) Ceiling cassette-4way compact type (FDTC) ....................................... 55
....................................... 84
(3) Ceiling concealed type (SRR) .............................................................. 53
7. RANGE OF USAGE & LIMITATIONS
................................................................................... 62
8. CAPACITY TABLES
5. PIPING SYSTEM ...................................................................................... 57
.................................................................................. 68
9. APPLICATION DATA
(1) Wall mounted type (SRK) ..................................................................... 62
(4) Ceiling cassette-4way compact type (FDTC) ....................................... 67
(2) Floor standing type (SRF) .................................................................... 65
(3) Ceiling concealed type (SRR) .............................................................. 66
9.1 Installation of indoor unit ..................................................................... 68
(1) Wall mounted type (SRK) ..................................................................... 68
(3) Ceiling concealed type (SRR) .............................................................. 80
(2) Floor standing type (SRF) .................................................................... 76
(4) Ceiling cassette-4way compact type (FDTC)
9.2 Installation of outdoor unit ................................................................... 90

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10. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ...............111
................................................................130
(6) 3D auto operation .............................................................................114
.......................................................126
(7) Timer operation ..................................................................................115
10.1 Models SRK20～50ZJ-S ......................................................................111
.......................................................112
(1) Operation control function by remote controller
(5) Flap and louver control ......................................................................113
(4) Custom cord switching procedure
.........................................................................112(3) Auto restart function
(2) Unit ON/OFF button ...........................................................................112
..................................111
(8) Installation location setting .................................................................115
(9) Outline of heating operation ................................................................116
(11) Outline of automatic operation ...........................................................117
(10) Outline of cooling operation ...............................................................117
(12) Protective control function ...................................................................118
10.2 Models SRK20～60ZJX-S ......................................................................125
(2) Unit ON/OFF button ............................................................................126
(1) Operation control function by remote controller ...................................125
(4) Custom cord switching procedure
(3) Auto restart function ...........................................................................126
(9) Outline of heating operation
(5) Flap and louver control .....................................................................127
(8) Installation location setting ..................................................................129
(6) 3D auto operation ..............................................................................128
(7) Timer operation ....................................................................................129
.......................................................139
(2) Unit ON/OFF button .............................................................................139
(4) Custom cord switching procedure
(3) Auto restart function ............................................................................139
(5) Flap control ........................................................................................140
(8) Outline of heating operation .................................................................141
(6) Air outlet selection ...............................................................................140
(7) Timer operation .....................................................................................141
(10) Outline of cooling operation .............................................................131
(11) Outline of automatic operation ............................................................131
10.3 Models SRF25～50ZJX-S .....................................................................138
(12) Protective control function ...................................................................132
(1) Operation control function by remote controller .................................138

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(9) Outline of cooling operation .................................................................143
.....................179
(4) Custom cord switching procedure ........................................................151
...............................................................................178
(5) Timer operation ......................................................................................152
(10) Outline of automatic operation ............................................................143
..............................................................................151
(11) Protective control function
(3) Auto restart function ............................................................................151
(2) Unit ON/OFF button
...................................150(1) Operation control function by remote controller
10.4 Models SRR25,35ZJ-S .......................................................................150
..................................................................144
(6) Outline of heating operation .................................................................152
(7) Outline of cooling operation ................................................................153
(9) Protective control function ...................................................................154
(8) Outline of automatic operation ...............................................................154
10.5 Models FDTC25,35VD ..........................................................................160
(1) Remote controller (option parts) ..........................................................160
(3) Operation control function by the indoor controller ..............................163
(2) Operation control function by the wired remote controller ....................162
(4) Operation control function by the outdoor controller .............................172
(4) Troubleshooting procedure (If the air conditioner runs)
11.1 SRK,SRF and SRR series .....................................................................178
(3) Troubleshooting procedure (If the air conditioner does not run at all)
........178
(1) Cautions .............................................................................................178
(2) Items to check before troubleshooting .................................................178
..........................................................................................199
(10) How to make sure of wireless remote controller ..................................195
11.2 FDTC series
(11) Outdoor unit inspection points ..............................................................196
11.2.1 Diagnosing of microcomputer circuit ...........................................199
(3) Troubleshooting at the indoor unit .....................................................202
(1) Selfdiagnosis function ..........................................................................199
(2) Troubleshooting procedure .................................................................202
(5) Self-diagnosis table .............................................................................180
(6) Service mode (Trouble mode access function) ...................................181
(8) Phenomenon observed after shortcircuit, wire breakage on sensor .........193
(7) Inspection procedures corresponding to detail of trouble ....................189
(9) Checking the indoor electrical equipment ...........................................194
11. MAINTENANCE DATA

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(4) Check of anomalous operation data with the remote controller ..........206
12.1 Instullation of wired remote controller (RC-E4) ...............................248
12.2 Wireles kit (FDTC series : RCN-TC-24W-ER) ....................................254
(5) Inverter checker for diagnosis of inverter output ................................207
..................................................................................210
(6) Outdoor unit controller failure diagnosis circuit diagram
12. OPTION PARTS .......................................................................................248
(2) Troubleshooting
....................................................................................209(1) List of troubles
11.2.2 Troubleshooting flow ....................................................................209
.....................208
12.3 Simple wired remote controoller (FDTC series : RCH-E3) ...............256
12.4 Interface kit (SC-BIKN-E) ....................................................................262
12.5 Super link E board (SC-ADNA-E) ......................................................266
12.6 Ducted type (SRRM) optional parts ......................................................268
■How to read the model name
Example: SRK 20 Z
Series code
Inveter type
Product capacity
Model name SRK : Wall mounted type
SRC : Outdoor unit
SRF : Floor standing type
SRR : Ceiling concealed type
JX-S
Example: FDTC 25 VD
Series code
Product capacity
Model name 〔Ceiling cassette-4way compact type〕
*

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'10 • SR-T-091
'09•SRK-DB-087D
RWA000Z225 B
Model
Item
SRK20ZJ-S
Indoor unit SRK20ZJ-S Outdoor unit SRC20ZJ-S
Cooling capacity (1) W 2000 (1000 (Min.) ~ 2700 (Max.))
Heating capacity (1) W 2700 (1200 (Min.) ~ 3900 (Max.))
Power supply 1 Phase, 220 ~ 240 V, 50Hz
Operation
data (1)
Power
consumption
Cooling kW 0.44 (0.21 ~ 0.77)
Heating 0.62 (0.27 ~ 1.38)
Running
current
Cooling
A
2.5 / 2.4 / 2.3 (220/ 230/ 240 V)
Heating 3.2 / 3.1 / 3.0 (220/ 230/ 240 V)
Inrush current 3.2 / 3.1 / 3.0 (220/ 230/ 240 V)
COP Cooling 4.55
Heating 4.35
Noise
level
Cooling Sound level dB (A) Hi: 33 Me: 27 Lo: 21 47
Power level dB 49 59
Heating Sound level dB (A) Hi: 36 Me: 31 Lo: 24 46
Power level dB 52 58
Exterior dimensions (Height x Width x Depth) mm 294×798×229 540×780(+62)×290
Exterior appearance
( Munsell color )
Fine snow Stucco white
( 8.0Y 9.3/0.1 ) near equivalent ( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 9.5 32
Refrigerant
equipment
Compressor type & Q'ty — RM-B5077MDE1 ( Rotary type ) x 1
Motor (Starting method) kW — 0.75 ( Line starting )
Refrigerant oil 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (3) kg R410A 0.75 ( Pre-Charged up to the piping length of 15m )
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Air handling
equipment
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24
Air flow Colling CMM Hi: 7.8 Me: 5.6 Lo: 4.8 29.5
Heating Hi: 9.8 Me: 6.3 Lo: 5.0 25.6
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net ( washable ) x 2 —
Shock & vibration absorber — Cushion rubber ( for compressor )
Electric heater — —
Operation
control
Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —
Operation Display RUN: Green, TIMER: Yellow, HI POWER: Green, 3D AUTO: Green
Safety devices
Compressor overheat protection, Overcurrent 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: Ǿ6.35 ( 1/4" ) Gas line: Ǿ9.52 ( 3/8" )
connecting method Flare connecting
Attached length of piping m Liquid line : 0.53 —
Gas Line : 0.40
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way )length
m
Max.15
Vertical height difference between
outdoor unit and indoor unit
Max.10 ( Outdoor unit is higher )
Max.10 ( Outdoor unit is lower )
Drain hose Connectable ( VP 16 ) —
Power cable —
Recommended breaker size A 16
Connection wiring Size x Core numbe 1.5mm2x 4 cores ( Including earth cable )
Connecting method Terminal block ( Screw fixing type )
Accessories (included) Mounting kit, Clean filter
( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Optional parts Interface kit ( SC-BIKN-E )
1 SPECIFICATIONS Adapted to RoHS directive
Note (1) The data are measured at the following conditions.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1 , JIS C 9612
Heating 20ºC — 7ºC 6ºC
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)
The pipe length is 7.5m.
1. SPECIFICATIONS
(1) Wall mounted type (SRK)
B
RWA000Z225

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'09•SRK-DB-087D
Model
Item
SRK25ZJ-S
Indoor unit SRK25ZJ-S Outdoor unit SRC25ZJ-S
Cooling capacity (1) W 2500 (1000 (Min.) ~ 2900 (Max.))
Heating capacity (1) W 3200 (1200 (Min.) ~ 4200 (Max.))
Power supply 1 Phase, 220 ~ 240 V, 50Hz
Operation
data (1)
Power
consumption
Cooling kW 0.62 (0.21 ~ 0.88)
Heating 0.80 (0.27 ~ 1.36)
Running
current
Cooling
A
3.2 / 3.1 / 3.0 (220/ 230/ 240 V)
Heating 4.0 / 3.8 / 3.7 (220/ 230/ 240 V)
Inrush current 4.0 / 3.8 / 3.7 (220/ 230/ 240 V)
COP Cooling 4.03
Heating 4.00
Noise
level
Cooling Sound level dB (A) Hi: 34 Me: 28 Lo: 21 48
Power level dB 50 60
Heating Sound level dB (A) Hi: 39 Me: 31 Lo: 24 49
Power level dB 55 61
Exterior dimensions (Height x Width x Depth) mm 294×798×229 540×780(+62)×290
Exterior appearance
( Munsell color )
Fine snow Stucco white
( 8.0Y 9.3/0.1 ) near equivalent ( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 9.5 32
Refrigerant
equipment
Compressor type & Q'ty — RM-B5077MDE1 ( Rotary type ) x 1
Motor (Starting method) kW — 0.75 ( Line starting )
Refrigerant oil 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (3) kg R410A 0.75 (Pre-Charged up to the piping length of 15m)
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Air handling
equipment
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24
Air flow Colling CMM Hi: 7.9 Me: 6.0 Lo: 5.0 32.1
Heating Hi: 10.6 Me: 6.5 Lo: 5.1 25.6
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net ( washable ) x 2 —
Shock & vibration absorber — Cushion rubber ( for compressor )
Electric heater — —
Operation
control
Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —
Operation Display RUN: Green, TIMER: Yellow, HI POWER: Green, 3D AUTO: Green
Safety devices
Compressor overheat protection, Overcurrent 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: Ǿ6.35 ( 1/4" ) Gas line: Ǿ9.52 ( 3/8" )
connecting method Flare connecting
Attached length of piping m Liquid line : 0.53 —
Gas Line : 0.40
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way )length
m
Max.15
Vertical height difference between
outdoor unit and indoor unit
Max.10 ( Outdoor unit is higher )
Max.10 ( Outdoor unit is lower )
Drain hose Connectable ( VP 16 ) —
Power cable —
Recommended breaker size A 16
Connection wiring Size x Core numbe 1.5mm2x 4 cores ( Including earth cable )
Connecting method Terminal block ( Screw fixing type )
Accessories (included) Mounting kit, Clean filter
( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Optional parts Interface kit ( SC-BIKN-E )
Adapted to RoHS directive
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1 , JIS C 9612
Heating 20ºC — 7ºC 6ºC
Note (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)
The pipe length is 7.5m.
RWA000Z225 B
B
RWA000Z225

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'10 • SR-T-091
'09•SRK-DB-087D
Model
Item
SRK35ZJ-S
Indoor unit SRK35ZJ-S Outdoor unit SRC35ZJ-S
Cooling capacity (1) W 3500 (1000 (Min.) ~ 3800 (Max.))
Heating capacity (1) W 4000 (1300 (Min.) ~ 4800 (Max.))
Power supply 1 Phase, 220 ~ 240 V, 50Hz
Operation
data (1)
Power
consumption
Cooling kW 1.01 (0.21 ~ 1.24)
Heating 1.00 (0.29 ~ 1.45)
Running
current
Cooling
A
4.9 / 4.7 / 4.5 (220/ 230/ 240 V)
Heating 4.9 / 4.7 / 4.5 (220/ 230/ 240 V)
Inrush current 4.9 / 4.7 / 4.5 (220/ 230/ 240 V)
COP Cooling 3.47
Heating 4.00
Noise
level
Cooling Sound level dB (A) Hi: 42 Me: 32 Lo: 22 50
Power level dB 58 62
Heating Sound level dB (A) Hi: 43 Me: 37 Lo: 25 51
Power level dB 59 63
Exterior dimensions (Height x Width x Depth) mm 294×798×229 540×780(+62)×290
Exterior appearance
( Munsell color )
Fine snow Stucco white
( 8.0Y 9.3/0.1 ) near equivalent ( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 9.5 35
Refrigerant
equipment
Compressor type & Q'ty — RM-B5077MDE1 ( Rotary type ) x 1
Motor (Starting method) kW — 0.90 ( Line starting )
Refrigerant oil 0.35 ( DIAMOND FREEZE MA68 )
Refrigerant (3) kg R410A 1.05 (Pre-Charged up to the piping length of 15m)
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Air handling
equipment
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24
Air flow Colling CMM Hi: 10.1 Me: 6.4 Lo: 5.0 31.5
Heating Hi: 12.8 Me: 9.4 Lo: 6.1 27.8
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net ( washable ) x 2 —
Shock & vibration absorber — Cushion rubber ( for compressor )
Electric heater — —
Operation
control
Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —
Operation Display RUN: Green, TIMER: Yellow, HI POWER: Green, 3D AUTO: Green
Safety devices
Compressor overheat protection, Overcurrent 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: Ǿ6.35 ( 1/4" ) Gas line: Ǿ9.52 ( 3/8" )
connecting method Flare connecting
Attached length of piping m Liquid line : 0.53 —
Gas Line : 0.40
Insulation for piping Necessary ( Both sides ), independent
Refrigerant line (one way )length
m
Max.15
Vertical height difference between
outdoor unit and indoor unit
Max.10 ( Outdoor unit is higher )
Max.10 ( Outdoor unit is lower )
Drain hose Connectable ( VP 16 ) —
Power cable —
Recommended breaker size A 16
Connection wiring Size x Core numbe 1.5mm2x 4 cores ( Including earth cable )
Connecting method Terminal block ( Screw fixing type )
Accessories (included) Mounting kit, Clean filter
( Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1 )
Optional parts Interface kit ( SC-BIKN-E )
Adapted to RoHS directive
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1 , JIS C 9612
Heating 20ºC — 7ºC 6ºC
Note (1) The data are measured at the following conditions.
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)
The pipe length is 7.5m.
RWA000Z225 B
B
RWA000Z225

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'10 • SR-T-091
B
RWA000Z225
Model
Item
SRK50ZJ-S
Indoor unit SRK50ZJ-S Outdoor unit SRC50ZJ-S
Cooling capacity (1) W 5000 (1600 (Min.) ~ 5500 (Max.))
Heating capacity (1) W 5800 (1600 (Min.) ~ 6600 (Max.))
Power supply 1 Phase, 220 ~ 240 V, 50Hz
Operation
data (1)
Power
consumption
Cooling kW 1.55 (0.40 ~ 2.20)
Heating 1.59 (0.42 ~ 2.10)
Running
current
Cooling
A
7.1 / 6.8 / 6.5 (220/ 230/ 240 V)
Heating 7.3 / 7.0 / 6.7 (220/ 230/ 240 V)
Inrush current 7.3 / 7.0 / 6.7 (220/ 230/ 240 V)
COP Cooling 3.23
Heating 3.65
Noise
level
Cooling Sound level dB(A) Hi : 46 Me : 37 Lo : 26 51
Power level dB 61 61
Heating Sound level dB(A) Hi : 45 Me : 37 Lo : 31 53
Power level dB 61 63
Exterior dimensions (Height x Width x Depth) mm 294 x 798 x 229 640 x 800 (+71) x 290
Exterior appearance
(Munsell color)
Fine snow
( 8.0Y 9.3/0.1 ) near equivalent
Stucco white
( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 9.5 42
Refrigerant
equipment
Compressor type & Q'ty — 5RS132XAB21 (Rotary type) x 1
Motor (Starting method) kW — 0.90 (Line starting)
Refrigerant oil 0.37 (FV50S)
Refrigerant (4) kg R410A 1.35 (Pre-Charged up to the piping length of 15m)
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Air handling
equipment
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 34
Air flow Cooling CMM Hi : 11.3 Me : 7.8 Lo : 5.3 36.0
Heating Hi : 13.5 Me : 10.2 Lo : 7.5 36.0
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —
Shock & vibration absorber — Cushion rubber (for compressor)
Electric heater — —
Operation
control
Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —
Operation Display RUN : Green, TIMER : Yellow, HI POWER : Green, 3D AUTO : Green
Safety devices
Compressor overheat protection, Overcurrent 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 :φ12.7 (1/2")
Connecting method Flare connecting
Attached length of piping m Liquid line : 0.53
Gas line : 0.40 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length
m
Max. 25
Vertical height difference between
outdoor unit and indoor unit
Max. 15 (Outdoor unit is higher)
Max. 15 (Outdoor unit is lower)
Drain hose Connectable (VP16) —
Power cable —
Recommended breaker size A 16
Connection wiring Size x Core number 1.5mm2x 4 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Optional parts 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 ISO-T1, JIS C 9612
Heating 20˚C — 7˚C 6˚C
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)
The pipe length is 7.5m.
Adapted to RoHS directive

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9
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'10 • SR-T-091
B
RWA000Z229
Model
Item
SRK20ZJX-S
Indoor unit SRK20ZJX-S Outdoor unit SRC20ZJX-S
Cooling capacity (1) W 2000 (900 (Min.) ~ 3100 (Max.))
Heating capacity (1) W 2500 (900 (Min.) ~ 4300 (Max.))
Power supply 1 Phase, 220 ~ 240 V, 50Hz
Operation
data (1)
Power
consumption
Cooling kW 0.35 (0.19 ~ 0.70)
Heating 0.45 (0.23 ~ 1.00)
Running
current
Cooling
A
1.9 / 1.8 / 1.7 (220/ 230/ 240 V)
Heating 2.4 / 2.3 / 2.2 (220/ 230/ 240 V)
Inrush current 2.4 / 2.3 / 2.2 (220/ 230/ 240 V)
COP Cooling 5.71
Heating 5.56
Noise
level
Cooling Sound level dB(A) Hi : 39 Me : 30 Lo : 21 47
Power level dB 53 60
Heating Sound level dB(A) Hi : 38 Me : 33 Lo : 25 47
Power level dB 54 59
Exterior dimensions (Height x Width x Depth) mm 309 x 890 x 220 595 x 780 (+62) x 290
Exterior appearance
(Munsell color)
Fine snow
( 8.0Y 9.3/0.1 ) near equivalent
Stucco white
( 4.2Y 7.5/1.1 ) near equivalent
Net weight kg 15 38
Refrigerant
equipment
Compressor type & Q'ty — RM-B5077MDE1 (Rotary type) x 1
Motor (Starting method) kW — 0.75 (Line starting)
Refrigerant oil 0.35 (DIAMOND FREEZE MA68)
Refrigerant (4) kg R410A 1.2 (Pre-Charged up to the piping length of 15m)
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Air handling
equipment
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor 27 24
Air flow Cooling CMM Hi : 11.5 Me : 8.0 Lo : 5.0 29.5
Heating Hi : 12.0 Me : 9.5 Lo : 7.0 27.0
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —
Shock & vibration absorber — Cushion rubber (for compressor)
Electric heater — —
Operation
control
Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —
Operation Display RUN : Green, TIMER : Yellow, HI POWER : Green,
3D AUTO : Green, ECONO : Blue
Safety devices
Compressor overheat protection, Overcurrent 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 connecting
Attached length of piping m Liquid line : 0.55
Gas line : 0.49 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length
m
Max. 15
Vertical height difference between
outdoor unit and indoor unit
Max. 10 (Outdoor unit is higher)
Max. 10 (Outdoor unit is lower)
Drain hose Connectable (VP16) —
Power cable —
Recommended breaker size A 16
Connection wiring Size x Core number 1.5mm2x 4 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Optional parts 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 ISO-T1, JIS C 9612
Heating 20˚C — 7˚C 6˚C
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)
The pipe length is 7.5m.
Adapted to RoHS directive