Mitsubishi Heavy Industries SRK10CFV-4 User manual

ROOM AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST
WALL MOUNTED TYPE
ROOM AIR-CONDITIONER
(Split system, air cooled cooling only type)
SRK10CFV-4, 13CFV-4
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TECHNICAL MANUAL
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CONTENTS
1. GENERAL INFORMATION ............................................................................... 2
1.1 Specific features ........................................................................................ 2
1.2 How to read the model name .................................................................... 2
2. SELECTION DATA ............................................................................................ 3
2.1 Specifications............................................................................................. 3
2.2 Range of usage & limitations.................................................................... 5
2.3 Exterior dimensions .................................................................................. 5
2.4 Piping system............................................................................................. 6
2.5 Selection chart ........................................................................................... 7
3. ELECTRICAL DATA ......................................................................................... 8
3.1 Electrical wiring ......................................................................................... 8
4. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER .................... 9
4.1 Operation control function by remote control switch ............................ 9
4.2 Unit ON/OFF button ................................................................................. 10
4.3 Power blackout auto restart function .................................................... 11
4.4 Custom cord switching procedure......................................................... 11
4.5 Flap and louver control ........................................................................... 12
4.6 3D auto operation .................................................................................... 12
4.7 Timer operation ........................................................................................ 13
4.8 Installation location setting .................................................................... 14
4.9 Outline of cooling operation ................................................................... 15
4.10 Outline of dehumidifying operation ....................................................... 16
4.11 Outline of automatic operation ............................................................... 17
4.12 Outline of fan operation .......................................................................... 17
4.13 Outline of clean operation....................................................................... 17
4.14 Protective control function ..................................................................... 18
5. APPLICATION DATA ...................................................................................... 19
5.1 Selection of location for installation ...................................................... 20
5.2 Installation of indoor unit ........................................................................ 21
5.3 Installation of outdoor unit ..................................................................... 24
5.4 Connection of refrigerant pipings .......................................................... 24
5.5 Installation of remote control switch ..................................................... 25
5.6 Earthing work ........................................................................................... 25
5.7 Test run ...................................................................................................... 26
5.8 Precautions for wireless remote control installation and
operation................................................................................................... 26
6. MAINTENANCE DATA.................................................................................... 27
6.1 Trouble shooting ...................................................................................... 27
6.2 Servicing ................................................................................................... 30
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1.2 How to read the model name
Example : SR K 10 C FV -4
TIMER lightRUN light
1GENERAL INFORMATION
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 & louver
The flap & louver can be automatically controlled by operating wireless remote control.
¡Flap swing : The flaps swing up and down successively.
¡Louver swing : The louvers swing left and right successively.
¡3D auto operation : Fan speed and air flow direction are automatically controlled, allowing the entire room to be
efficiently conditioned.
¡Memory flap : Once the flap & louver position is set, the unit memorizes the position and continues to operate
at the same position from the next time.
(2) Automatic operation
When the remote control switch is set on “auto( ) ”, it will either automatically decide operation mode such as cooling and
thermal 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.
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
For Asia
Series No.
Cooling only type
Product capacity
Wall mounted type
Split type room air-conditioner
1 time flash
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2SELECTION DATA
2.1 Specifications
Model SRK10CFV-4 (Indoor unit)
SRC10CFV-4 (Outdoor unit)
(2) The operation data are applied to the 220 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 SRK10CFV-4 SRC10CFV-4
Cooling capacity(1) BTU 9000
Power source 1 Phase, 220V, 50Hz
Cooling input kW 0.73
Running current (Cooling) A 3.4
Inrush current A 18
COP (In cooling) 3.62
Noise level(4) dB 39 45
Exterior dimensions mm 268 ×790 ×199 540 ×780 ×290
Height ×Width ×Depth
Color Fine snow Stucco white
Net weight kg 8.5 30
Refrigerant equipment –RSA201A018
Compressor types & Q’ty
Motor kW –0.69
Starting method –Line starting
Heat exchanger Louver fins & inner grooved tubing Louver fins & inner grooved tubing
Refrigerant control Capillary tubes
Refrigerant(3) kg R22 0.9 (Pre-Charged up to the piping length of 7.5m)
Refrigerant oil R0.35 (SUNISO 4GSI or ATMOS NM56)
Air handling equipment Tangential fan ×1Propeller fan ×1
Fan type & Q’ty
Motor W 16 14
Air flow (at High) CMM 9.0 26.5
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), 3D AUTO (Green)
Safety equipment Frost protection, Internal 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)
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°C19°C35°C24°CISO-T1, JIS C9612
(220V)
Operation
data
(1)
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(2) The operation data are applied to the 220 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 SRK13CFV-4 SRC13CFV-4
Cooling capacity(1) BTU 12500
Power source 1 Phase, 220V, 50Hz
Cooling input kW 1.06
Running current (Cooling) A 4.9
Inrush current A 29
COP (In cooling) 3.45
Noise level(4) dB 40 49
Exterior dimensions mm 268 ×790 ×199 540 ×780 ×290
Height ×Width ×Depth
Color Fine snow Stucco white
Net weight kg 8.5 37
Refrigerant equipment –RSA201A017
Compressor types & Q’ty
Motor kW –1.09
Starting method –Line starting
Heat exchanger Louver fins & inner grooved tubing Straight fins & inner grooved tubing
Refrigerant control Capillary tubes
Refrigerant(3) kg R22 0.93 (Pre-Charged up to the piping length of 7.5m)
Refrigerant oil R0.41 (SUNISO 4GSI or ATMOS NM56)
Air handling equipment Tangential fan ×1Propeller fan ×1
Fan type & Q’ty
Motor W 16 22
Air flow (at High) CMM 9.5 29.5
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), 3D AUTO (Green)
Safety equipment Frost protection, Internal 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)
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°C19°C35°C24°CISO-T1, JIS C9612
Model SRK13CFV-4 (Indoor unit)
SRC13CFV-4 (Outdoor unit)
(220V)
Operation
data
(1)
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2.2 Range of usage & limitations
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 SRK10CFV-4, 13CFV-4
Unit: mm
Piping hole (ø65)
( )
Piping hole (ø65)
53.5
380.6
Pipng for Liquid 448.6 (ø6.35)
10 :ø9.52
13 :ø12.7
Pipng for Gas
Drain hose 520 (ø16)
53.5
44.5
252.2 7.5
8.3
102.5
585
102.5
133.5450206.5
202450138
44.5 43.2
39.3
200
45
45
60
17.5 60 27
788
60
9
45
199 3
Terminal block
Piping hole right(left)
268
790
A
VIEW A
→
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(2) Outdoor unit
Models SRC10CFV-4, 13CFV-S
2.4 Piping system
Models All models
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)
10 : ø9.52
13 : ø12.7
Unit: mm
Terminal block
10: ø9.52 (3/8")
13: 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
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2.5 Selection chart
Correct the cooling capacity in accordance with the conditions as follows. The net cooling capacity can be obtained in the following way.
Net capacity = Capacity shown on specification ✕ Correction factors as follows.
(1) Coefficient of cooling capacity in relation to temperatures
(2) Correction of cooling capacity in relation to one way length of refrigerant piping
It is necessary to correct the cooling capacity in relation to the one way piping length between the indoor and outdoor units.
14 16 18 20 22
15
20
25
30
35
40
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
43
24
ISO-T1 Standard ConditionIndoor air W.B. temperature °C W.B.
Cooling
Applicable range
Coefficient of cooling capacity in relation to temperature
Cooling operation
Outdoor air D.B.
temperature
°C D.B.
Piping length [m]
Cooling
7
1.0
10
0.99
15
0.975
How to obtain the cooling capacity
Example : The net cooling capacity of the model SRK13CFV-4 with the piping length of 15m, indoor wet-bulb temperature at 19.0˚C
and outdoor dry-bulb temperature 35˚C is Net cooling capacity = 12500 ✕0.975 ✕1.0 = 12187 BTU
SRK13CFV-4 Length 15m Factor by air
temperatures
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CM
51C
FMo
FM
I
SM
LM1
LM2
BK
BK
Th1
Th2
BKBLLB
Y/GN
Y/GN
TT
BK
BKWH
WH
WHWH BRBR
RD
WH
Y
WH
WH
WH
RD
WH
BK
L2
2
3
1
L3
L1
Sh
CFo
CF I
ZNR
CONTROL BOX
Printed circuit board
Power source
220V 50Hz
F
(250V 3.15A)
Cc
OR
OR
Outdoor unit
Indoor unit
1
2
~
~
1
2
Wireless
Display
CNE
CNY
CNX
CNM
CNW
52C3N
52C
52C4
1
5
3
CNU
CNG
Back up Sw
R-Amp
BK Black
BL Blue
BR Brown
LB Light blue
YYellow
RD Red
OR Orange
WH White
Y/G Yellow/Green
Color symbol
Symbol Parts name Symbol Parts name
C
C
Capacitor for CM
SM Flap motor
CF
I
Capacitor for FM
I
Th
1 ,
2
Sensor
LM
1 ,
2
Louver motor
CF
O
Capacitor for FM
O
TTerminal block
CM Compressor motor
ZNR Varistor
FFuse
51C Motor protector for CM
FM
I
Fan motor (Indoor unit)
52C Magnetic contactor for CM
FM
O
Fan motor (Outdoor unit)
Meaning of marks
Notes (1) : denotes magnetized relay ×: denotes demagnetized relay
(2) Th
1 is room temperature sensor. Th 2 (the heat exchanger sensor) is frost prevention sensor.
Operation
Cooling
Relay symbol Control part
52C CM
Table of relay operations
3ELECTRICAL DATA 3.1 Electrical wiring
Models SRK10CFV-4, 13CFV-4
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