Mitsubishi Heavy Industries SRK25ZJ-S User manual

TECHNICAL MANUAL
Manual No.'10•SRK-T-098
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
Indoor unit / Outdoor unit
SRK25ZJ-S / SRC25ZJ-SA
SRK35ZJ-S / SRC35ZJ-SA
SRK20ZJX-S / SRC20ZJX-SA
SRK25ZJX-S / SRC25ZJX-SA
SRK35ZJX-S / SRC35ZJX-SA

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'10 • SRK-T-098
CONTENTS
1. SPECIFICATIONS ........................................................................................ 3
2.2 Outdoor units ...................................................................................... 10
..................................................... 24
2.3 Remote controller ................................................................................. 12
......................................................................... 8
2.1 Indoor units ........................................................................................ 8
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING .............................................................................. 14
3.1 Indoor units .......................................................................................... 14
4. NOISE LEVEL ............................................................................................ 17
3.2 Outdoor units ....................................................................................... 16
6. RANGE OF USAGE & LIMITATIONS
................................................................................... 26
7. CAPACITY TABLES
5. PIPING SYSTEM ...................................................................................... 22
.................................................................................. 28
8. APPLICATION DATA
8.1 Installation of indoor unit ..................................................................... 28
(1) Models SRK25ZJ-S,35ZJ-S ................................................................ 28
(2) Models SRK20ZJX-S,25ZJX-S,35ZJX-S ............................................. 32
8.2 Installation of outdoor unit ................................................................... 36
9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 43
(6) 3D auto operation ............................................................................. 46
(7) Timer operation .................................................................................. 47
9.1 Models SRK25,35ZJ-S ...................................................................... 43
....................................................... 44
(1) Operation control function by remote controller
(5) Flap and louver control ...................................................................... 45
(4) Custom cord switching procedure
......................................................................... 44(3) Auto restart function
(2) Unit ON/OFF button ........................................................................... 44
.................................. 43
(8) Installation location setting ................................................................. 47
(9) Outline of heating operation ................................................................ 48
(11) Outline of automatic operation ........................................................... 49
(10) Outline of cooling operation ............................................................... 49
(12) Protective control function ................................................................... 50
(13) Defrost heater control ....................................................................... 55

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'10 • SRK-T-098
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'10 • SRK-T-098
................................................................ 61
....................................................... 57
9.2 Models SRK20～35ZJX-S ...................................................................... 56
(2) Unit ON/OFF button ............................................................................ 57
(1) Operation control function by remote controller ................................... 56
(4) Custom cord switching procedure
(3) Auto restart function ........................................................................... 57
(9) Outline of heating operation
(5) Flap and louver control ..................................................................... 58
(8) Installation location setting .................................................................. 60
(6) 3D auto operation .............................................................................. 59
(7) Timer operation .................................................................................... 60
(10) Outline of cooling operation ............................................................. 62
(11) Outline of automatic operation ............................................................ 62
(12) Protective control function ................................................................... 63
(13) Defrost heater control ....................................................................... 68
............................................................................... 69
10.4 Troubleshooting procedure (If the air conditioner runs)
10.3 Troubleshooting procedure
(If the air conditioner does not run at all)
.... 69
10.1 Cautions ............................................................................................... 69
10.2 Items to check before troubleshooting ............................................... 69
10.10 How to make sure of wireless remote controller ............................. 86
10.11 Outdoor unit inspection points ......................................................... 87
10.5 Self-diagnosis table ............................................................................ 71
10.6 Service mode (Trouble mode access function) ................................. 72
10.8
Phenomenon observed after shortcircuit, wire breakage on sensor ...... 84
10.7 Inspection procedures corresponding to detail of trouble ............... 80
10.9 Checking the indoor electrical equipment ........................................ 85
10. MAINTENANCE DATA
11.1 Instullation of wired remote controller (RC-E4) ............................... 89
11. OPTION PARTS ....................................................................................... 89
11.2 Interface kit (SC-BIKN-E) .................................................................... 95
11.3 Super link E board (SC-ADNA-E) ....................................................... 99
■How to read the model name
Example: SRK 20 Z
Series code
Inverter type
Product capacity
Model name
JX-S
SRK : Wall mounted type
SRC : Outdoor unit
.................. 70
'09•SRK-DB-087D
Model
Item
SRK25ZJ-S
Indoor unit SRK25ZJ-S Outdoor unit SRC25ZJ-SA
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 Defrost heater 230V 110W
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

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'10 • SRK-T-098
'09•SRK-DB-087D
Model
Item
SRK25ZJ-S
Indoor unit SRK25ZJ-S Outdoor unit SRC25ZJ-SA
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 Defrost heater 230V 110W
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
1. SPECIFICATIONS

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'10 • SRK-T-098
'09•SRK-DB-087D
Model
Item
SRK35ZJ-S
Indoor unit SRK35ZJ-S Outdoor unit SRC35ZJ-SA
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 Defrost heater 230V 110W
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