Mitsubishi Heavy Industries SRK09CI User manual

ROOM AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST
WALL MOUNTED TYPE
ROOM AIR-CONDITIONER
(Split system, air cooled cooling only type)
SRK09CI, 12CI
SRK10CIV-4, 13CIV-4

TECHNICAL MANUAL
1. SRK09CI, 12CI ............................................................. 1
2. SRK10CIV-4, 13CIV-4.................................................. 33

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1. SRK09CI, 12CI
WALL MOUNTED TYPE
ROOM AIR-CONDITIONER
Split system, air cooled
cooling only type

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CONTENTS
1.1 GENERAL INFORMATION ......................................................................... 3
1.1.1 Specific features ..................................................................................... 3
1.1.2 How to read the model name ................................................................. 3
1.2 SELECTION DATA ...................................................................................... 4
1.2.1 Specifications ......................................................................................... 4
1.2.2 Range of usage & limitations ................................................................ 6
1.2.3 Exterior dimensions ................................................................................ 6
1.2.4 Piping system ......................................................................................... 8
1.2.5 Selection chart ........................................................................................ 9
1.3 ELECTRICAL DATA .................................................................................. 10
1.3.1 Electrical wiring ..................................................................................... 10
1.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............. 11
1.4.1 Operation control function by remote control ................................... 11
1.4.2 Unit ON/OFF button .............................................................................. 12
1.4.3 Power blackout auto restart function ................................................. 12
1.4.4 Custom cord switching procedure ..................................................... 13
1.4.5 Flap control ........................................................................................... 13
1.4.6 TIMER operation ................................................................................... 14
1.4.7 Outline of cooling operation ................................................................ 15
1.4.8 Outline of dry operation ....................................................................... 16
1.4.9 Outline of auto operation ..................................................................... 17
1.4.10 Outline of fan operation ....................................................................... 17
1.4.11 Outline of clean operation ................................................................... 17
1.4.12 Protective control function .................................................................. 18
1.5 APPLICATION DATA ................................................................................. 19
1.5.1 Selection of location for installation ................................................... 20
1.5.2 Installation of indoor unit .................................................................... 21
1.5.3 Installation of outdoor unit .................................................................. 24
1.5.4 Connection of refrigerant pipings ....................................................... 24
1.5.5 Installation of remote control .............................................................. 25
1.5.6 Earthing work ........................................................................................ 25
1.5.7 Test run ................................................................................................... 26
1.5.8 Precautions for wireless remote control installation and
operation ............................................................................................... 26
1.6 MAINTENANCE DATA .............................................................................. 27
1.6.1 Trouble shooting .................................................................................. 27
1.6.2 Servicing ................................................................................................ 31

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1.1 GENERAL INFORMATION
1.1.1 Specific features
The “MITSUBISHI HEAVY INDUSTRIES, LTD.” room air-conditioner: SRK series are of split and wall mounted type and the unit
consists of indoor unit and outdoor unit with refrigerant precharged in factory. The indoor unit is composed of room air cooling equip-
ment with operation control switch and the outdoor unit is composed of condensing unit with compressor.
(1) Remote control flap
The flap can be automatically controlled by operating wireless remote control.
¡Flap swing : The flaps swing up and down successively.
¡Memory flap : Once the flap position is set, the unit memorizes the position and continues to operate at the same position from
the next time.
(2) Auto operation
When the remote control is set on “auto( ) ”, it will either automatically decide operation mode such as cooling and dry, or
operate in the operation mode before it has been turned to automatic control.
(3) Self diagnosis function
¡We are constantly trying to do better service to our customers by installing such judges that show abnormality of operation as
follows.
TIMER lightRUN light
Room temperature sensor error
Indoor fan motor error
Heat exchanger sensor error
2 time flash
6 time flash
TIMER light
ON Trouble of outdoor unit
2 time flash
RUN light
ON
1 time flash
1.1.2 How to read the model name
Example : SR K 09 C I
Series No.
Cooling only type
Product capacity
Wall mounted type
Split type room air-conditioner

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1.2 SELECTION DATA
1.2.1 Specifications
Model SRK09CI (Indoor unit)
SRC09CI (Outdoor unit)
(2) The operation data are applied to the 220 V or 230 V districts respectively.
(3) The refrigerant quantity to be charged includes the refrigerant in 7.5 m connecting piping.
(Purging is not required even in the short piping.)
If the piping length is longer, when it is 7.5 to 15 m, add 10 g refrigerant per meter.
(4) Expressed in sound pressure level.
Notes (1) The data are measured at the following conditions.
Item
Model SRK09CI SRC09CI
kW 2.64
Cooling capacity(1)
BTU/h 9000
Power source 1 Phase, 220/230V, 50Hz
Cooling input kW 0.90
Running current (Cooling) A 4.2
Inrush current A 18
COP (In cooling) 2.93
Noise level(4) dB 41 49
Exterior dimensions mm 268 ×790 ×224 540 ×645 ×245
Height ×Width ×Depth
Color Fine snow Polar white
Net weight kg 8.0 27
Refrigerant equipment –RSA201A034
Compressor types & Q’ty
Motor kW –0.68
Starting method –Line starting
Heat exchanger Louver fins & inner grooved tubing Louver fins & grooved tubing
Refrigerant control Capillary tubes
Refrigerant(3) kg R22 0.43 (Pre-Charged up to the piping length of 7.5m)
Refrigerant oil R0.28 (SUNISO 4GSI or ATMOS NM56)
Air handling equipment Tangential fan ×1Propeller fan ×1
Fan type & Q’ty
Motor W 14 22
Air flow (at High) CMM 9.0 24
Air filter, Q’ty Polypropylene net (washable) ×2–
Shock & vibration absorber –Cushion rubber (for compressor)
Electric heater ––
Operation control Wireless-Remote control –
Operation switch
Room temperature control Microcomputer thermostat –
Pilot lamp RUN (Green), TIMER (Yellow), –
HI POWER (Green), ECONO (Orange)
Safety equipment Frost protection, Thermostat (for compressor)
Fan motor error protection
O.D mm (in) Liquid line: ø6.35 (1/4") Gas line: ø9.52 (3/8")
Connecting method Flare connecting
Attached length of piping Liquid line: 0.4 m –
Gas line : 0.33 m
Insulation Necessary (Both sides)
Drain hose Connectable
Power source cord 2.5 m (3 cores with Earth)
Recommended breaker size A 20
Size ×Core number 1.5 mm2×3 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit
Optional parts –
Connection
wiring
Refrigerant
piping
Item Indoor air temperature Outdoor air temperature Standards
Operation DB WB DB WB
Cooling 27°C 19°C 35°C 24°C ISO-T1, JIS C9612
(220/230V)
Operation
data
(1)

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(2) The operation data are applied to the 220 V or 230 V districts respectively.
(3) The refrigerant quantity to be charged includes the refrigerant in 7.5 m connecting piping.
(Purging is not required even in the short piping.)
If the piping length is longer, when it is 7.5 to 15 m, add 10 g refrigerant per meter.
(4) Expressed in sound pressure level.
Notes (1) The data are measured at the following conditions.
Item
Model SRK12CI SRC12CI
kW 3.37
Cooling capacity(1)
BTU/h 11500
Power source 1 Phase, 220/230V, 50Hz
Cooling input kW 1.10
Running current (Cooling) A 5.1
Inrush current A 29
COP (In cooling) 3.06
Noise level(4) dB 42 49
Exterior dimensions mm 268 ×790 ×224 540 ×780 ×290
Height ×Width ×Depth
Color Fine snow Stucco white
Net weight kg 8.5 33
Refrigerant equipment –RSA201A035
Compressor types & Q’ty
Motor kW –1.0
Starting method –Line starting
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes
Refrigerant(3) kg R22 0.63 (Pre-Charged up to the piping length of 7.5m)
Refrigerant oil R0.41 (SUNISO 4GSI or NM56M)
Air handling equipment Tangential fan ×1Propeller fan ×1
Fan type & Q’ty
Motor W 14 22
Air flow (at High) CMM 10.0 32
Air filter, Q’ty Polypropylene net (washable) ×2–
Shock & vibration absorber –Cushion rubber (for compressor)
Electric heater ––
Operation control Wireless-Remote control –
Operation switch
Room temperature control Microcomputer thermostat –
Pilot lamp RUN (Green), TIMER (Yellow), –
HI POWER (Green), ECONO (Orange)
Safety equipment Frost protection, Thermostat (for compressor)
Fan motor error protection
O.D mm (in) Liquid line: ø6.35 (1/4") Gas line: ø12.7 (1/2")
Connecting method Flare connecting
Attached length of piping Liquid line: 0.4 m –
Gas line : 0.33 m
Insulation Necessary (Both sides)
Drain hose Connectable
Power source cord 2.5 m (3 cores with Earth)
Recommended breaker size A 20
Size ×Core number 1.5 mm2×3 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit
Optional parts –
Connection
wiring
Refrigerant
piping
Item Indoor air temperature Outdoor air temperature Standards
Operation DB WB DB WB
Cooling 27°C 19°C 35°C 24°C ISO-T1, JIS C9612
Model SRK12CI (Indoor unit)
SRC12CI (Outdoor unit)
(220/230V)
Operation
data
(1)

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1.2.2 Range of usage & limitations
1.2.3 Exterior dimensions
Indoor return air temperature
(Upper, lower limits)
Refrigerant line (one way) length Max. 15m
All models
Refer to the selection chart
Power source voltage Rating ±10%
Voltage at starting Min. 85% of rating
Frequency of ON-OFF cycle Max. 10 times/h
ON and OFF interval Max. 3 minutes
Outdoor air temperature
(Upper, lower limits)
Vertical height difference between
outdoor unit and indoor unit
Max. 5m (Outdoor unit is higher)
Max. 5m (Outdoor unit is lower)
Item
Models
(1) Indoor unit
Models SRK09CI, 12CI
Unit: mm
Piping hole (ø65)
( )
Piping hole (ø65)
53.5
09 :ø9.52
12 :ø12.7
Piping for Gas
53.5
44.5
7.5
44.5 43.2
39.3
202450138
133.5450206.5
102.5
585
102.5
252.2
8.3
200
380.6
Piping for Liquid 448.6 (ø6.35)
Drain hose 520 (ø16)
45
45
60
17.5 60 27
788
VIEW A
45
2.1
960
124
224 3
Terminal block
Piping hole right(left)
268
790
A
→

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Model SRC12CI
Unit: mm
Terminal block
ø12.7 (1/2")
ø6.35 (1/4")
Flare connecting
Service valve (Gas)
Service valve (Liquid)
Flare connecting
Drain holes
2-16×12
138.4
40°
61.9
18.9165.1510104.9
439.1
111.4
99.4
349.5
313.1
43.1
290
12
50
350
23.5312.514
33.5
40°
42.595.9
14
540
780
Unit: mm
(2) Outdoor unit
Model SRC09CI
192.5
372.5
82.5 480
82.5
61.5
2-ø12 Terminal
block
127.7 33.3
40˚ 40˚
645
Drain holes
Service valve (Gas)
Flare connecting ø9.52 (3/8˝)
Service valve (Liquid)
Flare connecting ø6.35 (1/4˝)
50
12
42
13.5
274.5
300
12 23
44
245
540
100.3 39.7
14.4

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1.2.4 Piping system
Model SRK09CI
Model SRK12CI
Outdoor unitIndoor unit
Room temp.
sensor
Heat
exchanger
Flare connecting
Heat
exchanger
sensor
Piping
(Liquid)
ø6.35
Check joint
Service valve (Liquid)
Flare connecting
Cooling cycle
Heat
exchanger
Compressor
Accumulator
Service valve
(Gas)
Capillary tube
Piping
(Gas)
ø9.52
Outdoor unitIndoor unit
Room temp.
sensor
Heat
exchanger
Flare connecting
Heat
exchanger
sensor
Piping
(Liquid)
ø6.35
Check joint
Service valve (Liquid)
Flare connecting
Cooling cycle
Heat
exchanger
Compressor
Capillary tube
Accumulator
Service valve
(Gas)
Capillary tube
Piping
(Gas)
ø12.7