Mitsubishi Heavy Industries SRK20ZMX-S User manual

TECHNICAL MANUAL
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRK20ZMX-S
25ZMX-S
35ZMX-S
50ZMX-S
60ZMX-S
Manual No.'13 sSRK-T-144

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1
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'13 • SRK-T-144
ht43,5
CONTENTS
1. SPECIFICATIONS ........................................................................................ 3
(2) Outdoor units ....................................................................................... 9
..................................................... 22
3FNPUFDPOUSPM ..................................................................................... 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 ............... 46
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............................... 47
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....................... 46
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(10) How to make sure of wireless remote control ...................................... 81
(12) Outdoor unit inspection points .............................................................. 82
(11) Inspection procedure for blown fuse on the indoor and outdoor PCB .... 81
(8)
Phenomenon observed after shortcircuit, wire breakage on sensor ......... 79
(9) Checking the indoor electrical equipment ........................................... 79
■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
MX-S
........................................................................................... 85
11. OPTION PARTS
....................................................................... 97
12. TECHNICAL INFORMATION
.............................................................. 85
..................................................................... 91
(1) Wired remote control (RC-E5)
(2) Interface kit (SC-BIKN-E)
(3) Super link E board (SC-ADNA-E) .......................................................... 95
(6) Service mode (Trouble mode access function) ................................... 66
(7) Inspection procedures corresponding to detail of trouble .................... 74
..................... 64
(4) Troubleshooting procedure (If the air conditioner runs)
(3) Troubleshooting procedure
(If the air conditioner does not run at all)
........ 63
(2) Items to check before troubleshooting ................................................. 63
(5) Self-diagnosis table ............................................................................. 65
............................................................................... 63
(1) Cautions ............................................................................................. 63
10. MAINTENANCE DATA

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1. SPECIFICATIONS
Model
Item
SRK20ZMX-S
Indoor unit SRK20ZMX-S Outdoor unit SRC20ZMX-S
Power source Single phase, 220 - 240V, 50Hz
Operation
data
Nominal cooling capacity (range) kW 2.0 ( 0.9 (Min.) - 3.1 (Max.))
Nominal heating capacity (range) kW 2.5 ( 0.9 (Min.) - 4.3 (Max.))
Power
consumption
Cooling
kW
0.35 ( 0.19 - 0.70 )
Heating 0.45 ( 0.23 - 1.00 )
Max power consumption 1.65
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, max current 2.4 / 2.3 / 2.2 (220/ 230/ 240 V) Max. 8
Power factor Cooling %85
Heating 86
EER Cooling 5.71
COP Heating 5.56
Sound power level Cooling
dB(A)
53 60
Heating 54 59
Sound pressure level Cooling Hi: 39 Me: 30 Lo: 24 ULo: 21 47
Heating Hi: 38 Me: 33 Lo: 25 ULo: 21 47
Silent mode sound pressure level — Cooling:40 / Heating:42
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 13.5 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 Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 30 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 11.5 Me: 8.0 Lo: 6.3 ULo: 5.0 29.5
Heating Hi: 12.0 Me: 9.5 Lo: 7.0 ULo: 6.3 27.0
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, HI POWER: Green, 3D AUTO: Green, ECONO: 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 : 0.49 —
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 2.4 / 2.3 / 2.2 (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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option 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 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 value are somewhat higher
due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
B
RWA000Z252

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'13 • SRK-T-144
Model
Item
SRK25ZMX-S
Indoor unit SRK25ZMX-S Outdoor unit SRC25ZMX-S
Power source Single phase, 220 - 240V, 50Hz
Operation
data
Nominal cooling capacity (range) kW 2.55 ( 0.9 (Min.) - 3.2 (Max.))
Nominal heating capacity (range) kW 3.13 ( 0.9 (Min.) - 4.7 (Max.))
Power
consumption
Cooling
kW
0.49 ( 0.19 - 0.82 )
Heating 0.595 ( 0.23 - 1.12 )
Max power consumption 1.65
Running
current
Cooling
A
2.5 / 2.4 / 2.3 (220/ 230/ 240 V)
Heating 3.1 / 2.9 / 2.8 (220/ 230/ 240 V)
Inrush current, max current 3.1 / 2.9 / 2.8 (220/ 230/ 240 V) Max. 8
Power factor Cooling %90
Heating 88
EER Cooling 5.20
COP Heating 5.26
Sound power level Cooling
dB(A)
55 60
Heating 58 60
Sound pressure level Cooling Hi: 41 Me: 31 Lo: 25 ULo: 22 47
Heating Hi: 41 Me: 34 Lo: 27 ULo: 21 47
Silent mode sound pressure level — Cooling:41 / Heating:42
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 13.5 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 Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 30 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 12.5 Me: 9.0 Lo: 6.3 ULo: 5.0 29.5
Heating Hi: 13.0 Me: 10.0 Lo: 7.5 ULo: 6.3 27.0
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, HI POWER: Green, 3D AUTO: Green, ECONO: 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 : 0.49 —
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 3.1 / 2.9 / 2.8 (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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option 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 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 value are somewhat higher
due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
B
RWA000Z252

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'13 • SRK-T-144
Model
Item
SRK35ZMX-S
Indoor unit SRK35ZMX-S Outdoor unit SRC35ZMX-S
Power source Single phase, 220 - 240V, 50Hz
Operation
data
Nominal cooling capacity (range) kW 3.5 ( 0.9 (Min.) - 4.1 (Max.))
Nominal heating capacity (range) kW 4.3 ( 0.9 (Min.) - 5.1 (Max.))
Power
consumption
Cooling
kW
0.845 ( 0.19 - 1.01 )
Heating 0.960 ( 0.23 - 1.35 )
Max power consumption 1.65
Running
current
Cooling
A
4.0 / 3.8 / 3.6 (220/ 230/ 240 V)
Heating 4.6 / 4.4 / 4.2 (220/ 230/ 240 V)
Inrush current, max current 4.6 / 4.4 / 4.2 (220/ 230/ 240 V) Max. 8
Power factor Cooling %97
Heating 95
EER Cooling 4.14
COP Heating 4.48
Sound power level Cooling
dB(A)
58 63
Heating 59 62
Sound pressure level Cooling Hi: 43 Me: 33 Lo: 25 ULo: 22 50
Heating Hi: 42 Me: 35 Lo: 27 ULo: 22 50
Silent mode sound pressure level — Cooling:45 / Heating:43
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 13.5 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 Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 30 x1 (Direct drive) 24 x1 (Direct drive)
Air flow Cooling m3/min Hi: 13.5 Me: 9.5 Lo: 6.5 ULo: 5.0 32.5
Heating Hi: 14.0 Me: 11.0 Lo: 8.0 ULo: 6.5 29.5
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, HI POWER: Green, 3D AUTO: Green, ECONO: 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 : 0.49 —
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 4.6 / 4.4 / 4.2 (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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option 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 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 value are somewhat higher
due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
B
RWA000Z252

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'13 • SRK-T-144
Model
Item
SRK50ZMX-S
Indoor unit SRK50ZMX-S Outdoor unit SRC50ZMX-S
Power source Single phase, 220 - 240V, 50Hz
Operation
data
Nominal cooling capacity (range) kW 5.0 ( 1.1 (Min.) - 5.8 (Max.))
Nominal heating capacity (range) kW 6.0 ( 0.6 (Min.) - 7.7 (Max.))
Power
consumption
Cooling
kW
1.30 ( 0.2 - 1.80 )
Heating 1.36 ( 0.2 - 2.43 )
Max power consumption 2.9
Running
current
Cooling
A
6.0 / 5.7 / 5.5 (220/ 230/ 240 V)
Heating 6.2 / 6.0 / 5.7 (220/ 230/ 240 V)
Inrush current, max current 6.2 / 6.0 / 5.7 (220/ 230/ 240 V) Max. 15
Power factor Cooling %99
Heating 99
EER Cooling 3.85
COP Heating 4.41
Sound power level Cooling
dB(A)
60 63
Heating 64 63
Sound pressure level Cooling Hi: 47 Me: 40 Lo: 27 ULo: 25 54
Heating Hi: 48 Me: 40 Lo: 33 ULo: 26 50
Silent mode sound pressure level — Cooling:45 / Heating:45
Exterior dimensions (Height x Width x Depth) mm 309 x 890 x 220 640 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 13.5 45
Compressor type & Q'ty — RMT5113MCE2( Twin Rotary type ) x 1
Compressor motor (Starting method) kW — 1.50 ( Inverter driven )
Refrigerant oil (Amount, type) — 0.45 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.5 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 Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 30 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 13.5 Me: 11.0 Lo: 8.0 ULo: 7.0 39.0
Heating Hi: 17.0 Me: 14.5 Lo: 10.5 ULo: 8.0 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, HI POWER: Green, 3D AUTO: Green, ECONO: 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 : 0.49 —
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 6.2 / 6.0 / 5.7 (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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option 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 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 value are somewhat higher
due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
B
RWA000Z252

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7
-
'13 • SRK-T-144
Model
Item
SRK60ZMX-S
Indoor unit SRK60ZMX-S Outdoor unit SRC60ZMX-S
Power source Single phase, 220 - 240V, 50Hz
Operation
data
Nominal cooling capacity (range) kW 6.1 ( 1.1 (Min.) - 6.8 (Max.))
Nominal heating capacity (range) kW 6.8 ( 0.6 (Min.) - 8.2 (Max.))
Power
consumption
Cooling
kW
1.87 ( 0.2 - 2.50 )
Heating 1.67 ( 0.2 - 2.70 )
Max power consumption 2.9
Running
current
Cooling
A
8.6 / 8.2 / 7.9 (220/ 230/ 240 V)
Heating 7.7 / 7.3 / 7.0 (220/ 230/ 240 V)
Inrush current, max current 8.6 / 8.2 / 7.9 (220/ 230/ 240 V) Max. 15
Power factor Cooling %99
Heating 99
EER Cooling 3.26
COP Heating 4.07
Sound power level Cooling
dB(A)
64 65
Heating 64 64
Sound pressure level Cooling Hi: 51 Me: 41 Lo: 29 ULo: 25 54
Heating Hi: 48 Me: 41 Lo: 34 ULo: 27 54
Silent mode sound pressure level — Cooling:45 / Heating:45
Exterior dimensions (Height x Width x Depth) mm 309 x 890 x 220 640 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 13.5 45
Compressor type & Q'ty — RMT5113MCE2( Twin Rotary type ) x 1
Compressor motor (Starting method) kW — 1.50 ( Inverter driven )
Refrigerant oil (Amount, type) — 0.45 (DIAMOND FREEZE MA68)
Refrigerant (Type, amount, pre-charge length) kg R410A 1.5 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 Tangential fan x 1 Propeller fan x 1
Fan motor (Starting method) W 30 x1 (Direct drive) 34 x1 (Direct drive)
Air flow Cooling m3/min Hi: 14.5 Me: 12.5 Lo: 8.5 ULo: 7.0 41.5
Heating Hi: 17.5 Me: 15.0 Lo: 11.0 ULo: 8.5 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, HI POWER: Green, 3D AUTO: Green, ECONO: 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 : 0.49 —
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 8.6 / 8.2 / 7.9 (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, Clean filter (Allergen clear filter x 1, Photocatalytic washable deodorizing filter x 1)
Option 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 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 value are somewhat higher
due to ambient conditions.
(4) Select the breaker size according to the own national standard.
The pipe length is 7.5m.
B
RWA000Z252

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8
-
'13 • SRK-T-144
2. EXTERIOR DIMENSIONS (1) Indoor units
Models SRK20ZMX-S, 25ZMX-S, 35ZMX-S, 50ZMX-S, 60ZMX-S
RKY000Z058
881.9
59.9
26
61.5
46.5
59.9 20.9
46.5 61.5
890
309
Outlet for down piping
（Refer to the above view）
（Service space）
Installation plate
50 120
220
48.9
222.5
48
58
DB
E
35 35
650
450
120 100
220
7.9
70
295.4
5.7
48
54
C
491.1
520.8
559.1
A
46.5
19
60 24
61.5
120
961.5
F
G
3
220
Space for installation and service when viewing from the front
Unit
15（Service space）
（Service space）
（Service space）
Terminal block
Wired remote control
（Option）
Notes（1）The model name label is attached
on the underside of the panel.
（2）It takes the interface kit （SC-BIKN-E）
to connect the wired remote controller.
Unit:mm
Wireless remote control
Hole on wall for right rear piping
Hole on wall for left rear piping
Gas piping
Outlet for wiring
Drain hose
Liquid piping
F
E
C
D
B
Symbol
A
（φ65）
VP16
φ6.35（1／4"）（Flare）
Content
（φ65）
Outlet for piping（on both side）G
φ9.52（3／8"）（Flare）
φ12.7（1／2"）（Flare）
Model 20,25,35
Model 50,60
167

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9
-
'13 • SRK-T-144
(2) Outdoor unit
Models SRC20ZMX-S, 25ZMX-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