Mitsubishi Heavy Industries SRK60ZSX-S User manual

Manual No.'17•SRK-T-203
TECHNICAL MANUAL
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRK20ZSX-S
25ZSX-S
35ZSX-S
50ZSX-S
60ZSX-S
updated April 10, 2017

'17 • SRK-T-203
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1
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'10 • SRK-T-105
CONTENTS
1. SPECIFICATIONS ........................................................................................ 3
(2) Outdoor units ....................................................................................... 9
..................................................... 22
(3) Remote control ..................................................................................... 11
......................................................................... 8
(1) Indoor units .......................................................................................... 8
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING .............................................................................. 13
(1) Indoor units .......................................................................................... 13
4. NOISE LEVEL ............................................................................................ 16
(2) Outdoor units ....................................................................................... 14
6. RANGE OF USAGE & LIMITATIONS
................................................................................... 24
7. CAPACITY TABLES
5. PIPING SYSTEM ...................................................................................... 21
.................................................................................. 26
8. APPLICATION DATA
9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 34
(11) Timer operation .................................................................................. 39
(10) 3D auto operation ........................................................................... 38
............................... 35
(1) Operation control function by wireless remote control
(9) Airflow direction adjustment .................................................................... 37
(5) Selection of the annual cooling function .............................................. 36
(4) Installing two air-conditioners in the same room
......................................................................... 35(3) Auto restart function
(2) Unit ON/OFF button ........................................................................... 35
....................... 34
(12) Silent operation .................................................................................... 40
(14) Airflow range setting ........................................................................... 40
(13) Night setback operation
(15) Display brightness adjustment
..................................................................... 40
............................................................... 41
(16) Auto OFF operation ............................................................................ 41
........................................... 43
............................................................... 43
............................................................... 41
............................................................... 44
(1) Installation of indoor unit ...................................................................... 26
(2) Installation of outdoor unit .................................................................. 30
(8) Economy operation .............................................................................. 37
(7) High power operation ........................................................................... 36
(6) Heating only function ........................................................................... 36
(17) Outline of heating operation
(20) Outline of automatic operation
(19) Outline of dehumidifying (DRY) opertaion
(18) Outline of cooling operation
(21) Protective control function ................................................................... 44

'17 • SRK-T-203
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'13 • SRK-T-135
(10) How to make sure of wireless remote control ...................................... 69
(12) Outdoor unit inspection points .............................................................. 70
(11) Inspection procedure for blown fuse on the indoor and outdoor PCB .... 69
(8)
Phenomenon observed after shortcircuit, wire breakage on sensor ......... 67
(9) Checking the indoor electrical equipment ........................................... 67
■How to read the model name
Example: SRK 20 Z
Series code
Inverter type
Product capacity (Cooling capacity : 2.0kW)
Model name SRK : Wall mounted type
SRC : Outdoor unit
SX-S
............................................ 73
11. INDOOR UNIT DISASSEMBLY PROCEDURE
(6) Service mode (Trouble mode access function) ................................... 54
(7) Inspection procedures corresponding to detail of trouble .................... 62
..................... 52
(4) Troubleshooting procedure (If the air-conditioner runs)
(3) Troubleshooting procedure
(If the air-conditioner does not run at all)
........ 51
(2) Items to check before troubleshooting ................................................. 51
(5) Self-diagnosis table ............................................................................. 53
............................................................................... 51
(1) Cautions ............................................................................................. 51
10. MAINTENANCE DATA
....................................................................... 91
13. TECHNICAL INFORMATION
.............................................................. 79
..................................................................... 85
(1) Wired remote control (RC-E5)
(2) Interface kit (SC-BIKN-E)
(3) Superlink E board (SC-ADNA-E) .......................................................... 89
........................................................................................... 79
12. OPTION PARTS

'17 • SRK-T-203
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3
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1. SPECIFICATIONS
RWA000Z269
Model
Item
SRK20ZSX-S
Indoor unit SRK20ZSX-S Outdoor unit SRC20ZSX-S
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 2.0 ( 0.9(Min.) - 3.2 (Max.))
Nominal heating capacity (range) kW 2.7 ( 0.8(Min.) - 5.3 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.32 (0.16 - 0.74)
Heating 0.47 (0.14 - 1.36)
Heating (H2) —
Max power consumption 1.92
Running current Cooling
A
1.9 / 1.8 / 1.7 (220/ 230/ 240V)
Heating 2.6 / 2.5 / 2.4 (220/ 230/ 240V)
Inrush current, max current 2.5 Max. 9
Power factor Cooling %76
Heating 81
EER Cooling 6.25
COP Heating 5.74
Heating (H2) —
Sound power level Cooling
dB(A)
53 56
Heating 53 58
Sound pressure level Cooling Hi: 38 Me: 31 Lo: 24 ULo: 19 43
Heating Hi: 38 Me: 32 Lo: 25 ULo: 19 44
Silent mode sound pressure level — Cooling:33 / Heating:38
Exterior dimensions (Height x Width x Depth) mm 305 x 920 x 220 640 x 800 (+71) x 290
Exterior appearance
(Equivalent color)
Fine snow
Munsell : (8.0Y 9.3/0.1), RAL : 9003
Stucco white
Munsell : (4.2Y 7.5/1.1), RAL : 7004
Net weight kg 13 43.0
Compressor type & Quantity — RMT5111MCE2(Twin rotary type) x 1
Compressor motor (Starting method) kW — 0.75 (Inverter driven)
Refrigerant oil (Amount, type) ℓ — 0.35 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.45 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 & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 11.3 Me: 9.1 Lo: 6.0 ULo: 5.0 31.0
Heating Hi: 12.2 Me: 10.3 Lo: 7.2 ULo: 5.4 31.0
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
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, ECO: Blue
Safety equipments
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 connection Flare connection
Attached length of piping m Liquid line : 0.55 / Gas line : 0.48 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.25
Vertical height diff. between O.U. and I.U. m Max.15 (Outdoor unit is higher) / Max.15 (Outdoor unit is lower)
Drain hose Hose connectable (VP 16) Holes φ20 x 5 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 2.5
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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option parts Interface kit (SC-BIKN-E)
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(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.
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 ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2

'17 • SRK-T-203
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Model
Item
SRK25ZSX-S
Indoor unit SRK25ZSX-S Outdoor unit SRC25ZSX-S
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 2.5 ( 0.9(Min.) - 3.7 (Max.))
Nominal heating capacity (range) kW 3.2 ( 0.8(Min.) - 5.8 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.44 (0.16 - 0.89)
Heating 0.59 (0.14 - 1.54)
Heating (H2) —
Max power consumption 1.92
Running current Cooling
A
2.5 / 2.4 / 2.3 (220/ 230/ 240V)
Heating 3.2 / 3.0 / 2.9 (220/ 230/ 240V)
Inrush current, max current 3.0 Max. 9
Power factor Cooling %80
Heating 85
EER Cooling 5.68
COP Heating 5.42
Heating (H2) —
Sound power level Cooling
dB(A)
55 57
Heating 56 58
Sound pressure level Cooling Hi: 39 Me: 33 Lo: 25 ULo: 19 44
Heating Hi: 40 Me: 34 Lo: 27 ULo: 19 45
Silent mode sound pressure level — Cooling:35 / Heating:39
Exterior dimensions (Height x Width x Depth) mm 305 x 920 x 220 640 x 800 (+71) x 290
Exterior appearance
(Equivalent color)
Fine snow
Munsell : (8.0Y 9.3/0.1), RAL : 9003
Stucco white
Munsell : (4.2Y 7.5/1.1), RAL : 7004
Net weight kg 13 43.0
Compressor type & Quantity — RMT5111MCE2(Twin rotary type) x 1
Compressor motor (Starting method) kW — 0.75 (Inverter driven)
Refrigerant oil (Amount, type) ℓ — 0.35 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.45 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 & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 12.2 Me: 10.0 Lo: 6.7 ULo: 5.0 31.0
Heating Hi: 12.8 Me: 11.0 Lo: 7.8 ULo: 5.4 31.0
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
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, ECO: Blue
Safety equipments
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 connection Flare connection
Attached length of piping m Liquid line : 0.55 / Gas line : 0.48 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.25
Vertical height diff. between O.U. and I.U. m Max.15 (Outdoor unit is higher) / Max.15 (Outdoor unit is lower)
Drain hose Hose connectable (VP 16) Holes φ20 x 5 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 3.0
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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option parts Interface kit (SC-BIKN-E)
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(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.
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 ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
RWA000Z269

'17 • SRK-T-203
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5
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Model
Item
SRK35ZSX-S
Indoor unit SRK35ZSX-S Outdoor unit SRC35ZSX-S
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 3.5 ( 0.9(Min.) - 4.3 (Max.))
Nominal heating capacity (range) kW 4.3 ( 0.8(Min.) - 6.6 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
0.78 (0.16 - 1.26)
Heating 0.90 (0.14 - 1.89)
Heating (H2) —
Max power consumption 1.92
Running current Cooling
A
3.9 / 3.7 / 3.6 (220/ 230/ 240V)
Heating 4.4 / 4.3 / 4.1 (220/ 230/ 240V)
Inrush current, max current 4.3 Max. 9
Power factor Cooling %91
Heating 92
EER Cooling 4.49
COP Heating 4.78
Heating (H2) —
Sound power level Cooling
dB(A)
58 61
Heating 58 62
Sound pressure level Cooling Hi: 43 Me: 35 Lo: 26 ULo: 19 48
Heating Hi: 41 Me: 35 Lo: 28 ULo: 19 47
Silent mode sound pressure level — Cooling:38 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 305 x 920 x 220 640 x 800(+71) x 290
Exterior appearance
(Equivalent color)
Fine snow
Munsell : (8.0Y 9.3/0.1), RAL : 9003
Stucco white
Munsell : (4.2Y 7.5/1.1), RAL : 7004
Net weight kg 13 43.0
Compressor type & Quantity — RMT5111MCE2(Twin rotary type) x 1
Compressor motor (Starting method) kW — 0.90 (Inverter driven)
Refrigerant oil (Amount, type) ℓ — 0.35 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.45 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 & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 13.1 Me: 10.8 Lo: 7.3 ULo: 5.0 36.0
Heating Hi: 13.9 Me: 11.8 Lo: 8.6 ULo: 5.4 31.0
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
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, ECO: Blue
Safety equipments
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 connection Flare connection
Attached length of piping m Liquid line : 0.55 / Gas line : 0.48 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.25
Vertical height diff. between O.U. and I.U. m Max.15 (Outdoor unit is higher) / Max.15 (Outdoor unit is lower)
Drain hose Hose connectable (VP 16) Holes φ20 x 5 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 4.3
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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option parts Interface kit (SC-BIKN-E)
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(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.
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 ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
RWA000Z269

'17 • SRK-T-203
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6
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Model
Item
SRK50ZSX-S
Indoor unit SRK50ZSX-S Outdoor unit SRC50ZSX-S
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 5.0 ( 1.0(Min.) - 5.8 (Max.))
Nominal heating capacity (range) kW 6.0 ( 0.6(Min.) - 8.1 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
1.30 (0.19 - 1.80)
Heating 1.36 (0.18 - 2.43)
Heating (H2) —
Max power consumption 2.90
Running current Cooling
A
6.0 / 5.7 / 5.5 (220/ 230/ 240V)
Heating 6.2 / 6.0 / 5.7 (220/ 230/ 240V)
Inrush current, max current 5.0 Max. 15
Power factor Cooling %99
Heating 99
EER Cooling 3.85
COP Heating 4.41
Heating (H2) —
Sound power level Cooling
dB(A)
59 63
Heating 62 63
Sound pressure level Cooling Hi: 44 Me: 39 Lo: 31 ULo: 22 50
Heating Hi: 46 Me: 41 Lo: 33 ULo: 23 49
Silent mode sound pressure level — Cooling:42 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 305 x 920 x 220 640 x 800 (+71) x 290
Exterior appearance
(Equivalent color)
Fine snow
Munsell : (8.0Y 9.3/0.1), RAL : 9003
Stucco white
Munsell : (4.2Y 7.5/1.1), RAL : 7004
Net weight kg 13 45
Compressor type & Quantity — RMT5113MCE2(Twin rotary type) x 1
Compressor motor (Starting method) kW — 1.50 (Inverter driven)
Refrigerant oil (Amount, type) ℓ — 0.45 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.50 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 & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 14.3 Me: 12.4 Lo: 7.8 ULo: 5.4 39.0
Heating Hi: 17.3 Me: 14.3 Lo: 9.8 ULo: 6.2 33.0
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
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, ECO: Blue
Safety equipments
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 connection Flare connection
Attached length of piping m Liquid line : 0.55 / Gas line : 0.48 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.30
Vertical height diff. between O.U. and I.U. m Max.20 (Outdoor unit is higher) / Max.20 (Outdoor unit is lower)
Drain hose Hose connectable (VP 16) Holes φ20 x 5 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 5.0
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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option parts Interface kit (SC-BIKN-E)
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(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.
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 ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
RWA000Z269

'17 • SRK-T-203
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7
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Model
Item
SRK60ZSX-S
Indoor unit SRK60ZSX-S Outdoor unit SRC60ZSX-S
Power source 1 Phase, 220 - 240V, 50Hz / 220V, 60Hz
Operation
data
Nominal cooling capacity (range) kW 6.1 ( 1.0(Min.) - 6.8 (Max.))
Nominal heating capacity (range) kW 6.8 ( 0.6(Min.) - 8.7 (Max.))
Heating capacity (H2) kW —
Power consumption
Cooling
kW
1.81 (0.19 - 2.50)
Heating 1.67 (0.18 - 2.86)
Heating (H2) —
Max power consumption 2.90
Running current Cooling
A
8.3 / 7.9 / 7.6 (220/ 230/ 240V)
Heating 7.7 / 7.3 / 7.0 (220/ 230/ 240V)
Inrush current, max current 5.0 Max. 15
Power factor Cooling %99
Heating 99
EER Cooling 3.37
COP Heating 4.07
Heating (H2) —
Sound power level Cooling
dB(A)
62 65
Heating 63 64
Sound pressure level Cooling Hi: 46 Me: 41 Lo: 33 ULo: 22 52
Heating Hi: 46 Me: 42 Lo: 34 ULo: 23 52
Silent mode sound pressure level — Cooling:42 / Heating:43
Exterior dimensions (Height x Width x Depth) mm 305 x 920 x 220 640 x 800(+71) x 290
Exterior appearance
(Equivalent color)
Fine snow
Munsell : (8.0Y 9.3/0.1), RAL : 9003
Stucco white
Munsell : (4.2Y 7.5/1.1), RAL : 7004
Net weight kg 13 45
Compressor type & Quantity — RMT5113MCE2(Twin rotary type) x 1
Compressor motor (Starting method) kW — 1.50 (Inverter driven)
Refrigerant oil (Amount, type) ℓ — 0.45 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.50 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 & Quantity Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 42 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 16.3 Me: 13.4 Lo: 8.9 ULo: 5.4 41.5
Heating Hi: 17.8 Me: 13.7 Lo: 10.9 ULo: 6.2 39.0
Available external static pressure Pa 0 0
Outside air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (Washable) x 2 —
Shock & vibration absorber Rubber sleeve (for fan motor)
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, ECO: Blue
Safety equipments
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 connection Flare connection
Attached length of piping m Liquid line : 0.55 / Gas line : 0.48 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length m Max.30
Vertical height diff. between O.U. and I.U. m Max.20 (Outdoor unit is higher) / Max.20 (Outdoor unit is lower)
Drain hose Hose connectable (VP 16) Holes φ20 x 5 pcs
Drain pump, max lift height mm — —
Recommended breaker size A 16
L.R.A. (Locked rotor ampere) A 5.0
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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option parts Interface kit (SC-BIKN-E)
The pipe length is 5m.
Notes (1) The data are measured at the following conditions.
(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.
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 ISO5151-H1
Heating (H2) 20˚C — 2˚C 1˚C ISO5151-H2
RWA000Z269

'17 • SRK-T-203
-
8
-
Hole on wall for right rear piping Hole on wall for left rear piping Gas piping Outlet for piping Drain hose
F E C D
Symbol
A
（φ65）
VP16
Content
（φ65）
SRK 20,25,35 φ9.52（3／8"）（Flare）
Wireless remote control
SRK 50,60 φ12.7（1／2"）（Flare）
Wired remote control
（Option）
φ6.35（1／4"）（Flare）
Liquid piping
B
Unit:mm
Notes（1）The model name label is attached on the right side of the unit. （2）To connect the wired remote control, the interface kit（SC-BIKN-E）is required.
□120 19
60 24
167
□120 19
920
305
60 45
55
6035
55
59.512.5
45
59.512.5
61
220 3
100
100
118.5118.5 683
145 630 145
176 568 176
460 460
10.3277.317.4
56.4
47
48.6
76.6
47
65 70
SRK 50,60 486
548
533
65120
88.6
（Service space）
SRK 20,25,35 480
（Service space）
（Service space）
（Service space）
Outlet for downward piping
（Refer to the top view）
Unit
Installation board
Terminal block
Space for installation and service when viewing from the front
D B AE C
F F
FF
2. EXTERIOR DIMENSIONS
(1) Indoor units
Models SRK20ZSX-S, 25ZSX-S, 35ZSX-S, 50ZSX-S, 60ZSX-S
RLF000Z201

'17 • SRK-T-203
-
9
-
φ9.52（3／8"）（ Flare）
Content
C Pipe／cable draw-out hole
D
E Anchor bolt hole
Drain discharge hole
Symbol
B
A Service valve connection（Gas side）
M10-12×4 places
φ20×5 places
Service valve connection（Liquid side）φ6.35（1／4"）（ Flare）
Unit:mm
145
520
290
2-R
2-12X16 Slot hole L2
Inlet
Outlet
Inlet L3
L1
Service space
( )
L4
Terminal block
L2 L3
L4
L1
100 100
250
Open
Ｉ Ⅱ
Open
250
80
280
Ⅲ
280
Open
80 75
Examples
Size
installation
Ⅳ
180
Open
80
Open
Minimum installation space
A
C
B
D E
E
E
E
93 42.5
640
800
89 510 201
327.3
83.5
290
43.5
327.3
50.6
12
24.3312.514.8
71.2
17.9
40°
40°
33.5148.4
12.4
351.6
38.6
90.6
520.6 161
35.6
Notes （ 1）The unit 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）If the unit is installed in the location where there is a possibility of strong winds, place the unit such that the direction of air from the outlet gets perpendicular to the wind direction. （ 4）Leave 200mm or more space above the unit. （ 5）The wall height on the outlet side should be 1200mm or less. （ 6）The model name label is attached on the right side of the unit.
Center of gravity
Center of gravity
(2) Outdoor units
Models SRC20ZSX-S, 25ZSX-S, 35ZSX-S
RCT000Z019