Mitsubishi SCM80ZA User manual

51
3. INVERTER MULTI-SPLIT SYSTEM
ROOM AIR-CONDITIONER [4 room]
(Air to air heat pump type)
(OUTDOOR UNIT)
SCM80ZA
(INDOOR UNIT)
SKM22ZA SRRM40ZA
SKM25ZA
SKM28ZA
SKM32ZA
SKM40ZA
SKM50ZA
51
   
http://splitoff.ru/tehn-doc.html
, ,  , .

52
CONTENTS
3.1 GENERAL INFORMATION ........................................................................53
3.1.1 Specific features ................................................................................. 53
3.1.2 How to read the model name .............................................................53
3.2 SELECTION DATA ..................................................................................... 54
3.2.1 Specifications......................................................................................54
3.2.2 Range of usage & limitations............................................................. 63
3.2.3 Exterior dimensions............................................................................64
3.2.4 Piping system......................................................................................68
3.2.5 Selection chart ....................................................................................69
3.3 ELECTRICAL DATA...................................................................................70
3.3.1 Electrical wiring ..................................................................................70
3.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............. 73
3.5 APPLICATION DATA ................................................................................. 86
3.5.1 Installation of indoor unit ...................................................................87
3.5.2 Installation of remote controller ........................................................ 91
3.5.3 Installation of outdoor unit.................................................................92
3.5.4 Setup of volt select sw .......................................................................93
3.5.5 Electrical wiring ..................................................................................93
3.5.6 Refrigerant piping ............................................................................... 94
3.5.7 Test run and handling instruction .....................................................97
3.5.8 Installation of optional parts (Ceiling recessed type) ..................... 98
3.6 MAINTENANCE DATA ............................................................................... 107
3.6.1 Trouble shooting ................................................................................. 107
3.6.2 Servicing .............................................................................................. 115
    : http://splitoff.ru/tehn-doc.html

53
3.1 GENERAL INFORMATION
3.1.1 Specific features
(1) The long piping makes the location of the inside and units flexible.
¡No need for additional charge of refrigerant : 40 m
¡Maximum piping length : 60 m
(2) Connectable indoor capacity
Number of connectable units : 3 to 4 units
Total of indoor units (class kW) : 12 kW
(3) Indoor units are available with 6 capacities, in 2 types and 7 models.
5 capacities .......... 22, 25, 28, 32, 40, 50
2 types .................. Wall mounted type (SKM), Ceiling recessed type (SRRM)
(4) Inverter (Frequency converter) for multi-steps power control
¡Heating / Cooling
The rotational speed of a compressor is changed in step in relation to varying load, to interlock with the indoor and outdoor unit
fans controlled to changes in frequency, thus controlling the power.
¡Allowing quick heating/cooling operation during start-up period. Constant room temperature by fine-tuned control after the
unit has stabilized.
(5) Fuzzy control
Fuzzy control calculates the amount of variation in the difference between the suction air temperature and the setting temperature
in compliance with the fuzzy rules in order to control the air capacity and the inverter frequency.
(6) 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. (See Page 108)
3.1.2 How to read the model name
Example : SK M 28 Z A
Series No.
Inverter and Heat pump type
Product capacity
Multiple system
Model name SK : Wall mounted type
SRR : Ceiling recessed type
SC : Outdoor unit
    : http://splitoff.ru/tehn-doc.html

54
Item
Models SKM22ZA SKM25ZA SKM28ZA
Cooling capacity W 2200 2500 2800
Heating capacity W 3200 3400 4000
Noise level
Cooling Sound level
dB
Hi : 38 Lo : 29 Hi : 39 Lo : 31
Cooling Power level Hi : 52 Lo : 43 Hi : 53 Lo : 45
Cooling Sound level Hi : 39 Lo : 30 Hi : 40 Lo : 32
Heating
Power level Hi : 53 Lo : 44 Hi : 54 Lo : 46
Exterior dimensions
Height ×Width ×Depth mm 250 ×750 ×178 275 ×790 ×174
Color Ivory white
Net weight kg 7.5
Air handling equipment
Fan type & Q’ty Tangential fan ×1
Motor W 17 18
Cooling 7.0 7.7
Air flow (at high) Heating CMM 7.5 9.1
Air filter, Q’ty Polypropylene net ×2 (Washable)
Operation switch Wireless-Remote controller
Room temperature control M.C thermostat
Pilot lamp RUN (Green), TIMER (Yellow)
Safety equipment
O.D mm (in) φ 6.35 (1/4″)
φ 9.52 (3/8″)
Connecting method Flare connecting
Attached length of piping Liquid line : 0.4m Gas line : 0.35m
Insulation Necessary (Both Liquid & Gas lines)
Drain hose Connectable
Accessories (including) Mounting kit
Optional parts —
Outdoor units to be combined SCM80ZA
3.2 SELECTION DATA
3.2.1 Specifications
(1) Indoor unit
(a) Wall mounted type
Models SKM22ZA, 25ZA, 28ZA
Item Indoor air temperature Outdoor air temperature Standards
Operation DB DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1, JIS C9612
Heating 20ºC – 7ºC 6ºC ISO-T1, JIS C9612
(2) Capacity indicated is the rated capacity with one unit operating under ISO-T1 standards conditions.
Refrigerant
piping
Liquid line
Gas line
Frost protection, Serial error protection
Fan moter error protection
Notes (1) The data are measured at the following conditions.
    : http://splitoff.ru/tehn-doc.html

55
Item
Models SKM32ZA SKM40ZA SKM50ZA
Cooling capacity W 3200 4000 5000
Heating capacity W 4500 5400 6700
Noise level
Cooling Sound level
dB
Hi : 40 Lo : 30 Hi : 42 Lo : 31 Hi : 43 Lo : 31
Power level Hi : 54 Lo : 44 Hi : 56 Lo : 45 Hi : 57 Lo : 45
Noise level
Heating Sound level Hi : 41 Lo : 32 Hi : 42 Lo : 32 Hi : 43 Lo : 31
Power level Hi : 55 Lo : 46 Hi : 56 Lo : 46 Hi : 57 Lo : 45
Exterior dimensions
Height ×Width ×Depth mm 275 ×790 ×174 275 ×790 ×189
Color Ivory white
Net weight kg 8.0 9.0
Air handling equipment
Fan type & Q’ty Tangential fan ×1
Motor W 18 26
Cooling 9.0 9.5 10
Air flow (at high) Heating CMM 10 10 10.5
Air filter, Q’ty Polypropylene net ×2 (Washable)
Operation switch Wireless-Remote controller
Room temperature control M.C thermostat
Pilot lamp RUN (Green), TIMER (Yellow)
Safety equipment
O.D mm (in) φ 6.35 (1/4″)
φ 12.7 (1/2″)
Connecting method Flare connecting
Attached length of piping Liquid line : 0.4m Gas line : 0.35m
Insulation Necessary (Both Liquid & Gas lines)
Drain hose Connectable
Accessories (including) Mounting kit
Optional parts —
Outdoor units to be combined SCM80ZA
Item Indoor air temperature Outdoor air temperature Standards
Operation DB DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1, JIS C9612
Heating 20ºC – 7ºC 6ºC ISO-T1, JIS C9612
(2) Capacity indicated is the rated capacity with one unit operating under ISO-T1 standards conditions.
Refrigerant
piping
Liquid line
Gas line
Frost protection, Serial error protection
Fan moter error protection
Notes (1) The data are measured at the following conditions.
Models SKM32ZA, 40ZA, 50ZA
RUN (Green), TIMER (Yellow),
ECONO (Orange), HI POWER (Green)
    : http://splitoff.ru/tehn-doc.html

56
(b) Ceiling recessed type
Model SRRM40ZA
Item
Model SRRM40ZA
Cooling capacity W 4000
Heating capacity W 6000
Noise level
Cooling Sound level
dB
Hi : 41 Lo : 33
Power level Hi : 55 Lo : 47
Sound level Hi : 44 Lo : 34
Heating
Power level Hi : 58 Lo : 48
Exterior dimensions
Height ×Width ×Depth mm 230 ×740 ×455
Color —
Net weight kg 19
Air handling equipment
Fan type & Q’ty Multiblede centrifugal fan ×2
Motor W 21
Cooling 8.5
Air flow (at high) Heating CMM 9.5
Air filter, Q’ty —
Operation switch Wireless-Remote controller
Room temperature control M.C thermostat
Pilot lamp RUN (Green), TIMER (Yellow)
Safety equipment
O.D mm (in) φ 6.35 (1/4″)
φ 12.7 (1/2″)
Connecting method Flare connecting
Attached length of piping —
Insulation Necessary (Both Liquid & Gas lines)
Drain hose Connectable
Accessories (including) Mounting kit
Optional parts See Page 98
Outdoor units to be combined SCM80ZA
Item Indoor air temperature Outdoor air temperature Standards
Operation DB DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1, JIS C9612
Heating 20ºC – 7ºC 6ºC ISO-T1, JIS C9612
(2) Capacity indicated is the rated capacity with one unit operating under ISO-T1 standards conditions.
Refrigerant
piping
Liquid line
Gas line
Frost protection, Serial error protection
Drain error protection
Notes (1) The data are measured at the following conditions.
    : http://splitoff.ru/tehn-doc.html

57
Item
Model SCM80ZA
Cooling capacity W 8000 (1800~8600)
Heating capacity W 9500 (2000~10800)
Power source 1 Phase 220/230/240V 50Hz
Power consumption Cooling W3270 (750~3700)
Heating 3140 (750~3800)
Running current Cooling 18.0/17.2/16.4
Heating A17.2/16.6/16.1
Sound level Cooling : 48/48/49 Heating : 49/50/50
Noise level
Power level
dB Cooling : 62/62/63 Heating : 63/64/64
Exterior dimensions
Height ×Width ×Depth mm 845 ×880 ×340
Color Polar white
Net weight kg 80
Refrigerant equipment
Compressor type & Q’ty HV461X3-S12MS ×1
Motor kW 1.8
Starting method Direct start
Refrigerant control Capillary tubes +Electric expansion valve × Thermal expansion valve
Refrigerant kg R22 2.6 (Pre-charged up to the piping length of 40m)
Refrigerant oil R1.4 (SUNISO 4GSD)
Air handling equipment
Fan type & Q’ty Propeller fan ×1
Motor W 55
Air flow (at high) CMM 56
Shock & vibration absorber Rubber (for compressor)
Safety equipment
Size ×Core ×Number mm (in) Liquid line: φ6.35 (1/4″) ×4
Gas line: φ 9.52 (3/8″) ×2 +φ 12.7 (1/2″) ×2
Connecting method Flare connecting
Attached length piping —
Insulation Necessary (Both Liquid & Gas lines)
Power source supply Terminal block (Screw fixing type)
Size ×Core number 1.5 mm2×4 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)
Accessories (included) Union : (φ9.52 /φ12.7) ×2, (φ12.7 /φ9.52) ×2
Installation sheet, Manual instruction
Indoor units to be combined
(2) Outdoor unit
Model SCM80ZA
Compressor overheat protection, Overcurrent protection
Power transistor overheat protection
Notes (1) The data are measured at the following conditions.
SKM22, 25, 28, 32, 40, 50 type
SRRM40 type
Refrigerant
piping
Connection
wiring
Item Indoor air temperature Outdoor air temperature Standards
Operation DB DB WB DB WB
Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1, JIS C9612
Heating 20ºC – 7ºC 6ºC ISO-T1, JIS C9612
(2) The values for capacity and power consumption shown in a range ( ) indicate the minimum and maximum of the range.
(3) If the piping length exceeds 40 m, additional charging is required. (20g/m)
    : http://splitoff.ru/tehn-doc.html

58
(3) Operation data
¡The combinations of the indoor units is indicated by numbers. They are read as follows.
(Example) SKM22ZA /22 SKM50ZA /50
¡The capacity of the indoor units is shown by rooms. If this exceeds the maximum capacity of the outdoor unit, the demand
capacity will be proportionally distributed.
¡If units are to be combined, use the table below to make the proper selection.
(a) Heating
Indoor unit
combination
Heating capacity (kW) Power consumption (W) Standard current (A)
Room heating capacity (kW) Total capacity (kW)
A room
3.2
3.4
4.0
4.5
5.4
6.7
2.9
2.9
2.9
2.9
2.8
2.7
3.35
3.3
3.2
3.2
3.0
3.6
3.6
3.5
3.2
4.1
4.0
3.5
4.5
4.0
4.6
2.8
2.8
2.7
2.6
2.4
2.1
2.7
2.6
2.5
2.3
2.1
2.5
2.4
2.2
2.0
2.4
2.1
2.0
B room C room D room
2.9
3.3
3.8
4.1
5.2
6.2
3.35
3.6
4.2
5.1
5.9
3.6
4.1
5.1
5.7
4.1
4.9
5.5
4.5
5.1
4.6
2.8
2.8
2.7
2.6
2.4
2.1
3.1
3.0
2.8
2.6
2.4
3.2
3.1
2.8
2.6
3.3
3.1
2.9
2.8
3.1
3.5
3.7
4.2
4.9
3.1
3.3
3.7
4.2
4.7
3.2
3.5
4.1
4.6
3.3
3.9
4.4
Min.
Standard Max. Min.
Standard Max. 220V 230V 240V
2.0
2.0
2.4
2.4
3.0
3.0
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
3.2
3.4
4.0
4.5
5.4
6.7
5.8
6.2
6.7
7.0
8.0
8.9
6.7
6.9
7.4
8.3
8.9
7.2
7.7
8.6
8.9
8.2
8.9
9.0
9.0
9.1
9.2
8.4
8.7
8.9
8.9
9.0
9.1
8.9
8.9
9.0
9.1
9.2
8.9
9.0
9.1
9.2
9.0
9.1
9.3
3.9
4.0
4.7
5.6
6.0
7.9
6.7
7.3
7.9
8.3
9.2
10.1
7.9
8.2
8.7
9.6
10.2
8.5
9.0
9.9
10.2
9.5
10.1
10.3
10.2
10.4
10.5
9.7
10.0
10.1
10.2
10.3
10.4
10.1
10.2
10.2
10.3
10.5
10.2
10.3
10.4
10.5
10.3
10.4
10.6
750
750
850
850
1050
1050
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
860
980
1120
1320
1700
2200
1900
2050
2200
2400
2780
3220
2200
2340
2540
2920
3220
2500
2580
3070
3210
2880
3220
3210
3210
3190
3180
2970
3120
3220
3220
3200
3190
3220
3220
3210
3200
3180
3210
3210
3190
3180
3200
3190
3170
1110
1220
1390
1740
2020
2780
2350
2590
2780
3060
3440
3800
2780
2980
3210
3630
3800
3170
3230
3800
3800
3590
3800
3800
3800
3800
3800
3690
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
4.5
5.2
5.9
7.0
9.0
11.6
10.0
10.8
11.6
12.7
14.7
17.0
11.6
12.4
13.4
15.4
17.0
13.2
13.6
16.2
17.0
15.2
17.0
17.0
17.0
16.9
16.8
15.7
16.5
17.0
17.0
16.9
16.9
17.0
17.0
17.0
16.9
16.8
17.0
17.0
16.9
16.8
16.9
16.9
16.8
4.4
5.0
5.7
6.8
8.7
11.3
9.7
10.5
11.3
12.3
14.2
16.5
11.3
12.0
13.0
15.0
16.5
12.8
13.2
15.7
16.5
14.8
16.5
16.5
16.5
16.3
16.3
15.2
16.0
16.5
16.5
16.4
16.3
16.5
16.5
16.5
16.4
16.3
16.5
16.5
16.3
16.3
16.4
16.3
16.2
4.7
5.4
6.1
7.2
9.3
12.0
10.4
11.2
12.0
13.1
15.2
17.6
12.0
12.8
13.9
16.0
17.6
13.7
14.1
16.8
17.6
15.8
17.6
17.6
17.6
17.5
17.4
16.3
17.1
17.6
17.6
17.5
17.5
17.6
17.6
17.6
17.5
17.4
17.6
17.6
17.5
17.4
17.5
17.5
17.4
1
room
2
room
3
room
22
25
28
32
40
50
22+22
22+25
22+28
22+32
22+40
22+50
25+25
25+28
25+32
25+40
25+50
28+28
28+32
28+40
28+50
32+32
32+40
32+50
40+40
40+50
50+50
22+22+22
22+22+25
22+22+28
22+22+32
22+22+40
22+22+50
22+25+25
22+25+28
22+25+32
22+25+40
22+25+50
22+28+28
22+28+32
22+28+40
22+28+50
22+32+32
22+32+40
22+32+50
    : http://splitoff.ru/tehn-doc.html

59
Indoor unit
combination
Heating capacity (kW) Power consumption (W) Standard current (A)
Room heating capacity (kW) Total capacity (kW)
A room
2.0
1.8
2.97
2.9
2.7
2.5
2.3
2.8
2.6
2.4
2.3
2.5
2.4
2.2
2.3
2.0
3.0
2.9
2.7
2.5
2.7
2.6
2.4
2.5
2.2
3.07
2.9
2.6
2.6
3.17
2.28
2.2
2.1
2.1
1.9
1.8
2.15
2.1
2.0
1.9
1.8
2.0
2.0
1.8
1.9
1.8
2.0
2.0
2.0
1.8
2.0
1.9
1.8
1.9
1.8
3.6
3.4
2.97
2.9
2.7
2.5
2.3
3.1
3.0
2.7
2.5
3.3
3.0
2.8
3.5
3.3
3.0
2.9
2.7
2.5
3.2
2.9
2.7
3.4
3.2
3.07
2.9
2.6
3.4
3.17
2.28
2.2
2.1
2.1
1.9
1.8
2.15
2.1
2.0
1.9
1.8
2.0
2.0
1.8
1.9
1.8
2.4
2.3
2.2
2.1
2.3
2.2
2.0
2.1
2.0
3.6
4.2
2.97
3.1
3.6
4.1
4.6
3.1
3.4
4.0
4.5
3.3
3.8
4.3
3.5
4.1
3.0
3.3
3.8
4.3
3.2
3.7
4.2
3.4
4.0
3.07
3.5
4.2
3.4
3.17
2.28
2.2
2.1
2.1
1.9
1.8
2.4
2.4
2.3
2.1
2.0
2.6
2.5
2.4
2.75
2.6
2.4
2.3
2.2
2.1
2.3
2.4
2.3
2.7
2.6
2.28
2.5
2.8
2.9
3.6
4.0
2.4
2.6
2.9
3.4
3.9
2.6
2.8
3.4
2.75
3.2
2.4
2.6
2.9
3.4
2.5
2.8
3.3
2.7
3.1
B room C room D room Min.
Standard Max. Min.
Standard Max. 220V 230V 240V
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
9.2
9.4
8.9
8.9
9.0
9.1
9.2
9.0
9.0
9.1
9.3
9.1
9.2
9.3
9.3
9.4
9.0
9.1
9.2
9.3
9.1
9.2
9.3
9.3
9.4
9.2
9.3
9.4
9.4
9.5
9.1
9.1
9.1
9.2
9.3
9.4
9.1
9.2
9.2
9.3
9.5
9.2
9.3
9.4
9.3
9.4
9.2
9.2
9.3
9.4
9.3
9.3
9.4
9.4
9.5
10.6
10.7
10.2
10.2
10.3
10.4
10.5
10.3
10.3
10.4
10.6
10.4
10.5
10.6
10.6
10.7
10.3
10.4
10.5
10.6
10.4
10.5
10.7
10.6
10.8
10.5
10.6
10.7
10.7
10.8
10.4
10.4
10.4
10.5
10.6
10.8
10.4
10.5
10.5
10.7
10.8
10.5
10.6
10.7
10.6
10.8
10.5
10.5
10.6
10.7
10.6
10.6
10.7
10.7
10.8
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
3170
3160
3220
3210
3210
3190
3180
3210
3200
3190
3170
3190
3180
3160
3170
3150
3200
3200
3180
3170
3190
3180
3160
3160
3140
3180
3170
3150
3160
3140
3200
3190
3190
3180
3170
3150
3190
3180
3170
3160
3140
3180
3170
3160
3160
3150
3180
3180
3170
3160
3170
3160
3150
3160
3140
17.4
17.3
17.6
17.6
17.6
17.5
17.4
17.6
17.5
17.5
17.4
17.5
17.4
17.3
17.4
17.3
17.5
17.5
17.4
17.4
17.5
17.4
17.3
17.3
17.2
17.4
17.4
17.3
17.3
17.2
17.5
17.5
17.5
17.4
17.4
17.3
17.5
17.4
17.4
17.3
17.2
17.4
17.4
17.3
17.3
17.3
17.4
17.4
17.4
17.3
17.4
17.3
17.3
17.3
17.2
16.8
16.7
17.0
17.0
17.0
16.9
16.8
17.0
16.9
16.9
16.8
16.9
16.8
16.7
16.8
16.7
16.9
16.9
16.8
16.8
16.9
16.8
16.7
16.7
16.6
16.8
16.8
16.7
16.7
16.6
16.9
16.9
16.9
16.8
16.8
16.7
16.9
16.8
16.8
16.7
16.6
16.8
16.8
16.7
16.7
16.7
16.8
16.8
16.8
16.7
16.8
16.7
16.7
16.7
16.6
16.2
16.2
16.5
16.5
16.5
16.3
16.3
16.5
16.4
16.3
16.2
16.3
16.3
16.2
16.2
16.1
16.4
16.4
16.3
16.2
16.3
16.3
16.2
16.2
16.1
16.3
16.2
16.1
16.2
16.1
16.4
16.3
16.3
16.3
16.2
16.1
16.3
16.3
16.2
16.2
16.1
16.3
16.2
16.2
16.2
16.1
16.3
16.3
16.2
16.2
16.2
16.2
16.1
16.2
16.1
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3
room
4
room
22+40+40
22+40+50
25+25+25
25+25+28
25+25+32
25+25+40
25+25+50
25+28+28
25+28+32
25+28+40
25+28+50
25+32+32
25+32+40
25+32+50
25+40+40
25+40+50
28+28+28
28+28+32
28+28+40
28+28+50
28+32+32
28+32+40
28+32+50
28+40+40
28+40+50
32+32+32
32+32+40
32+32+50
32+40+40
40+40+40
22+22+22+22
22+22+22+25
22+22+22+28
22+22+22+32
22+22+22+40
22+22+22+50
22+22+25+25
22+22+25+28
22+22+25+32
22+22+25+40
22+22+25+50
22+22+28+28
22+22+28+32
22+22+28+40
22+22+32+32
22+22+32+40
22+25+25+25
22+25+25+28
22+25+25+32
22+25+25+40
22+25+28+28
22+25+28+32
22+25+28+40
22+25+32+32
22+25+32+40
    : http://splitoff.ru/tehn-doc.html

60
(b) Cooling
Indoor unit
combination
Cooling capacity (kW) Power consumption (W) Standard current (A)
Room cooling capacity (kW) Total capacity (kW)
A room
2.2
2.5
2.8
3.2
4.0
5.0
2.2
2.2
2.2
2.2
2.2
2.1
2.5
2.5
2.5
2.5
2.4
2.8
2.8
2.8
2.6
3.2
3.1
2.8
3.6
3.3
3.8
2.2
2.5
2.8
3.2
4.0
4.9
2.5
2.8
3.2
4.0
4.7
2.8
3.2
4.0
4.6
3.2
3.9
4.4
3.6
4.1
3.8
B room C room D room Min.
Standard Max. Min.
Standard Max. 220V 230V 240V
1.8
1.8
2.2
2.2
2.6
2.6
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
2.2
2.5
2.8
3.2
4.0
5.0
4.4
4.7
5.0
5.4
6.2
7.0
5.0
5.3
5.7
6.5
7.1
5.6
6.0
6.8
7.2
6.4
7.0
7.2
7.2
7.4
7.6
2.5
2.8
3.0
3.5
4.5
5.6
5.0
5.3
5.6
6.0
6.8
7.6
5.6
5.9
6.3
7.1
7.7
6.2
6.6
7.4
7.8
7.0
7.6
7.8
7.8
8.0
8.2
750
750
920
920
1080
1080
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1020
1140
1230
1420
1830
2270
2030
2160
2270
2440
2760
3180
2270
2400
2550
2890
3310
2510
2680
3010
3390
2850
3180
3420
3420
3470
3530
4.5
5.2
5.8
6.6
8.2
10.3
9.0
9.7
10.3
11.1
12.7
14.8
10.3
10.9
11.7
13.4
15.4
11.5
12.3
14.0
15.8
13.1
14.8
15.9
15.9
16.2
16.5
4.3
4.9
5.5
6.3
7.8
9.8
8.6
9.2
9.8
10.6
12.1
14.1
9.8
10.4
11.1
12.7
14.7
10.9
11.7
13.3
15.0
12.5
14.1
15.1
15.1
15.4
15.7
860
980
1100
1250
1560
1950
1720
1840
1950
2110
2420
2810
1950
2070
2220
2540
2930
2180
2340
2660
3000
2500
2810
3020
3020
3080
3140
4.7
5.4
6.1
6.9
8.6
10.7
9.5
10.1
10.7
11.6
13.3
15.5
10.7
11.4
12.2
14.0
16.1
12.0
12.9
14.6
16.5
13.8
15.5
16.6
16.6
16.9
17.3
1
room
2
room
22
25
28
32
40
50
22+22
22+25
22+28
22+32
22+40
22+50
25+25
25+28
25+32
25+40
25+50
28+28
28+32
28+40
28+50
32+32
32+40
32+50
40+40
40+50
50+50
Indoor unit
combination
Heating capacity (kW) Power consumption (W) Standard current (A)
Room heating capacity (kW) Total capacity (kW)
A room
1.8
1.8
1.8
1.9
1.9
2.3
2.3
2.2
2.0
2.2
2.1
2.0
2.1
2.1
2.1
2.0
2.35
2.3
2.2
2.5
2.4
2.2
2.3
2.5
2.3
2.3
2.2
2.0
2.2
2.1
2.0
2.1
2.4
2.3
2.2
2.35
2.3
2.2
2.5
2.4
2.2
2.6
2.5
2.3
2.3
2.2
2.0
2.45
2.4
2.2
2.6
2.4
2.3
2.6
2.35
2.3
2.55
2.5
2.7
3.2
2.6
2.5
2.3
2.4
2.7
3.4
2.45
2.7
3.2
2.6
2.4
2.7
2.6
2.35
2.5
2.55
B room C room D room Min.
Standard Max. Min.
Standard Max. 220V 230V 240V
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
9.3
9.3
9.4
9.4
9.4
9.2
9.3
9.3
9.4
9.3
9.3
9.4
9.4
9.3
9.4
9.4
9.4
9.4
9.5
10.6
10.7
10.8
10.7
10.8
10.5
10.6
10.6
10.7
10.6
10.7
10.8
10.7
10.7
10.7
10.8
10.7
10.8
10.8
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
1900
3170
3160
3140
3150
3140
3180
3170
3160
3150
3170
3160
3140
3150
3160
3150
3150
3160
3150
3140
17.4
17.3
17.2
17.3
17.2
17.4
17.4
17.3
17.3
17.4
17.3
17.2
17.3
17.3
17.3
17.3
17.3
17.3
17.2
16.8
16.7
16.6
16.7
16.6
16.8
16.8
16.7
16.7
16.8
16.7
16.6
16.7
16.7
16.7
16.7
16.7
16.7
16.6
16.2
16.2
16.1
16.1
16.1
16.3
16.2
16.2
16.1
16.2
16.2
16.1
16.1
16.2
16.1
16.1
16.2
16.1
16.1
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
3800
4
room
22+28+28+28
22+28+28+32
22+28+28+40
22+28+32+32
22+32+32+32
25+25+25+25
25+25+25+28
25+25+25+32
25+25+25+40
25+25+28+28
25+25+28+32
25+25+28+40
25+25+32+32
25+28+28+28
25+28+28+32
25+28+32+32
28+28+28+28
28+28+28+32
28+28+32+32
    : http://splitoff.ru/tehn-doc.html

61
Indoor unit
combination
Cooling capacity (kW) Power consumption (W) Standard current (A)
Room cooling capacity (kW) Total capacity (kW)
A room
2.2
2.2
2.1
2.1
1.9
1.8
2.2
2.1
2.0
1.8
1.7
2.0
1.9
1.8
1.7
1.9
1.8
1.6
1.6
1.5
2.4
2.3
2.2
2.1
1.9
2.2
2.1
2.0
1.9
2.0
1.9
1.8
1.9
1.7
2.4
2.4
2.2
2.0
2.2
2.1
2.0
2.0
1.9
2.5
2.4
2.2
2.2
2.7
2.2
2.2
2.1
2.1
1.9
1.8
2.4
2.4
2.3
2.1
1.9
2.6
2.5
2.3
2.1
2.7
2.6
2.4
3.0
2.8
2.4
2.3
2.2
2.1
1.9
2.5
2.4
2.3
2.1
2.7
2.5
2.3
2.9
2.7
2.4
2.4
2.2
2.0
2.6
2.5
2.3
2.9
2.7
2.5
2.4
2.2
2.8
2.7
2.2
2.5
2.8
2.9
3.5
3.9
2.4
2.6
2.9
3.4
3.9
2.6
2.8
3.3
3.8
2.7
3.1
3.7
3.0
3.5
2.4
2.6
2.8
3.2
3.8
2.5
2.8
3.2
3.7
2.7
3.1
3.6
2.9
3.5
2.4
2.6
3.1
3.7
2.6
3.0
3.5
2.9
3.4
2.5
2.9
3.5
2.8
2.7
B room C room D room Min.
Standard Max. Min.
Standard Max. 220V 230V 240V
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
4.2
6.6
6.9
7.0
7.1
7.3
7.5
7.0
7.1
7.2
7.3
7.5
7.2
7.2
7.4
7.6
7.3
7.5
7.7
7.6
7.8
7.2
7.2
7.2
7.4
7.6
7.2
7.3
7.5
7.7
7.4
7.5
7.7
7.7
7.9
7.2
7.4
7.5
7.7
7.4
7.6
7.8
7.8
8.0
7.5
7.7
7.9
7.8
8.1
7.2
7.5
7.6
7.7
7.9
8.1
7.6
7.7
7.8
7.9
8.1
7.8
7.8
8.0
8.2
7.9
8.1
8.3
8.2
8.4
7.7
7.8
7.8
8.0
8.2
7.8
7.9
8.1
8.3
8.0
8.1
8.3
8.3
8.5
7.9
8.0
8.1
8.3
8.0
8.2
8.4
8.4
8.6
8.1
8.3
8.5
8.4
8.6
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
2580
2700
2810
2970
3040
3100
2810
2930
3000
3060
3120
3000
3020
3080
3140
3040
3100
3160
3160
3220
2930
3000
3020
3080
3140
3020
3040
3100
3160
3060
3120
3180
3180
3240
3040
3060
3120
3180
3080
3140
3200
3200
3260
3120
3160
3240
3220
3270
2930
3050
3180
3360
3430
3490
3180
3310
3390
3460
3520
3390
3420
3470
3530
3430
3490
3550
3560
3620
3310
3390
3420
3470
3530
3420
3430
3490
3550
3450
3520
3580
3580
3640
3430
3450
3520
3580
3470
3530
3590
3590
3650
3520
3550
3640
3620
3700
14.2
14.9
15.5
16.3
16.7
17.1
15.5
16.1
16.5
16.8
17.2
16.5
16.6
16.9
17.3
16.7
17.1
17.4
17.4
17.7
16.1
16.5
16.6
16.9
17.3
16.6
16.7
17.1
17.4
16.8
17.2
17.5
17.5
17.8
16.7
16.8
17.2
17.5
16.9
17.3
17.6
17.6
17.9
17.2
17.4
17.8
17.7
18.0
13.6
14.2
14.8
15.6
16.0
16.3
14.8
15.4
15.8
16.1
16.4
15.8
15.9
16.2
16.5
16.0
16.3
16.6
16.6
16.9
15.4
15.8
15.9
16.2
16.5
15.9
16.0
16.3
16.6
16.1
16.4
16.7
16.7
17.0
16.0
16.1
16.4
16.7
16.2
16.5
16.8
16.8
17.1
16.4
16.6
17.0
16.9
17.2
12.9
13.5
14.1
14.9
15.2
15.5
14.1
14.7
15.0
15.3
15.6
15.0
15.1
15.4
15.7
15.2
15.5
15.8
15.8
16.1
14.7
15.0
15.1
15.4
15.7
15.1
15.2
15.5
15.8
15.3
15.6
15.9
15.9
16.2
15.2
15.3
15.6
15.9
15.4
15.7
16.0
16.0
16.3
15.6
15.8
16.2
16.1
16.4
3
room
22+22+22
22+22+25
22+22+28
22+22+32
22+22+40
22+22+50
22+25+25
22+25+28
22+25+32
22+25+40
22+25+50
22+28+28
22+28+32
22+28+40
22+28+50
22+32+32
22+32+40
22+32+50
22+40+40
22+40+50
25+25+25
25+25+28
25+25+32
25+25+40
25+25+50
25+28+28
25+28+32
25+28+40
25+28+50
25+32+32
25+32+40
25+32+50
25+40+40
25+40+50
28+28+28
28+28+32
28+28+40
28+28+50
28+32+32
28+32+40
28+32+50
28+40+40
28+40+50
32+32+32
32+32+40
32+32+50
32+40+40
40+40+40
    : http://splitoff.ru/tehn-doc.html

62
Indoor unit
combination
Cooling capacity (kW) Power consumption (W) Standard current (A)
Room Cooling capacity (kW) Total capacity (kW)
A room
1.8
1.8
1.8
1.7
1.6
1.5
1.8
1.7
1.7
1.6
1.5
1.7
1.6
1.5
1.6
1.5
1.8
1.7
1.6
1.5
1.6
1.6
1.5
1.5
1.5
1.7
1.6
1.5
1.5
1.4
1.9
1.9
1.8
1.7
1.8
1.8
1.7
1.7
1.8
1.7
1.6
1.95
1.9
1.9
1.8
1.8
1.8
1.7
1.6
1.5
1.8
1.7
1.7
1.6
1.5
1.7
1.6
1.5
1.6
1.5
1.9
1.9
1.9
1.7
1.9
1.8
1.7
1.9
1.7
2.0
2.0
1.9
1.8
2.2
1.9
1.9
1.8
1.7
1.8
1.8
1.7
1.7
2.0
2.0
1.9
1.95
1.9
1.9
1.8
1.8
1.8
1.7
1.6
1.5
2.0
2.0
1.9
1.8
1.7
2.1
2.1
2.0
2.3
2.2
1.9
1.9
1.9
1.7
2.1
2.0
1.9
2.2
2.2
2.0
2.0
1.9
2.2
2.2
1.9
1.9
1.8
1.7
2.0
2.0
1.9
2.2
2.0
2.0
2.2
1.95
1.9
2.1
1.8
2.0
2.1
2.5
2.9
3.4
2.0
2.2
2.3
2.8
2.3
2.1
2.4
2.8
2.3
2.7
1.9
2.1
2.3
2.9
2.1
2.3
2.8
2.2
2.6
2.0
2.2
2.7
2.2
2.2
1.9
2.0
2.3
2.8
2.0
2.2
2.7
2.2
2.0
2.2
2.2
1.95
2.2
2.1
B room C room D room Min. Standard Max. Min.
Standard Max. 220V 230V 240V
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
7.2
7.4
7.5
7.6
7.7
7.9
7.6
7.6
7.6
7.8
8.0
7.6
7.7
7.8
7.8
7.9
7.5
7.6
7.7
7.8
7.7
7.7
7.9
7.8
8.0
7.7
7.8
8.0
7.9
8.0
7.6
7.7
7.7
7.9
7.6
7.8
8.0
7.8
7.8
7.9
7.9
7.8
7.9
8.0
8.0
8.0
8.1
8.2
8.3
8.5
8.1
8.1
8.2
8.4
8.6
8.2
8.3
8.4
8.4
8.5
8.1
8.2
8.3
8.4
8.3
8.3
8.5
8.4
8.6
8.3
8.4
8.6
8.5
8.6
8.2
8.3
8.3
8.5
8.3
8.4
8.6
8.5
8.4
8.5
8.5
8.4
8.5
8.6
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
3060
3080
3100
3120
3180
3240
3100
3120
3140
3200
3270
3140
3160
3220
3200
3240
3120
3140
3160
3220
3160
3180
3240
3220
3270
3180
3200
3260
3240
3260
3140
3160
3180
3240
3180
3200
3260
3240
3200
3220
3260
3220
3240
3270
16.8
16.9
17.1
17.2
17.5
17.8
17.1
17.2
17.3
17.6
18.0
17.3
17.4
17.7
17.6
17.8
17.2
17.3
17.4
17.7
17.4
17.5
17.8
17.7
18.0
17.5
17.6
17.9
17.8
17.9
17.3
17.4
17.5
17.8
17.5
17.6
17.9
17.8
17.6
17.7
17.9
17.7
17.8
18.0
16.1
16.2
16.3
16.4
16.7
17.0
16.3
16.4
16.5
16.8
17.2
16.5
16.6
16.9
16.8
17.0
16.4
16.5
16.6
16.9
16.6
16.7
17.0
16.9
17.2
16.7
16.8
17.1
17.0
17.1
16.5
16.6
16.7
17.0
16.7
16.8
17.1
17.0
16.8
16.9
17.1
16.9
17.0
17.2
15.3
15.4
15.5
15.6
15.9
16.2
15.5
15.6
15.7
16.0
16.4
15.7
15.8
16.1
16.0
16.2
15.6
15.7
15.8
16.1
15.8
15.9
16.2
16.1
16.4
15.9
16.0
16.3
16.2
16.3
15.7
15.8
15.9
16.2
15.9
16.0
16.3
16.2
16.0
16.1
16.3
16.1
16.2
16.4
3450
3470
3490
3510
3580
3640
3490
3520
3530
3590
3670
3530
3550
3620
3590
3640
3520
3530
3550
3620
3550
3580
3640
3620
3670
3580
3590
3650
3640
3650
3530
3550
3580
3640
3580
3590
3650
3630
3590
3610
3660
3620
3640
3700
4
room
22+22+22+22
22+22+22+25
22+22+22+28
22+22+22+32
22+22+22+40
22+22+22+50
22+22+25+25
22+22+25+28
22+22+25+32
22+22+25+40
22+22+25+50
22+22+28+28
22+22+28+32
22+22+28+40
22+22+32+32
22+22+32+40
22+25+25+25
22+25+25+28
22+25+25+32
22+25+25+40
22+25+28+28
22+25+28+32
22+25+28+40
22+25+32+32
22+25+32+40
22+28+28+28
22+28+28+32
22+28+28+40
22+28+32+32
22+32+32+32
25+25+25+25
25+25+25+28
25+25+25+32
25+25+25+40
25+25+28+28
25+25+28+32
25+25+28+40
25+25+32+32
25+28+28+28
25+28+28+32
25+28+32+32
28+28+28+28
28+28+28+32
28+28+32+32
    : http://splitoff.ru/tehn-doc.html

63
3.2.2 Range of usage & limitations
Indoor intake air temperature
(Upper, lower limits)
Indoor units
that can be
used in
combination
Length for one indoor unit
Total length for all rooms
Max. 25m
Max. 60m
12kW
3 to 4 units
SCM80ZA
Refer to the selection chart.
Compressor
stop/start
frequency
Power source
voltage
1 cycle time
Stop time
Voltage fluctuation
Voltage drop during start
Interval unbalance
Difference in height between indoor units (C)
Within ±3% of rated voltage
Within ±15% of rated voltage
Within ±10% of rated voltage
3 min or more
6 min or more (from stop to stop or from start to start)
Max. 25m
Max. 15m
Max. 10m
Outdoor air temperature
(Upper, lower limits)
Number of connected units
Total of indoor Units (class kW)
Difference in
height between
indoor and outdoor
units
When above outdoor unit (B)
When below outdoor unit (A)
Item
Model
A
B
C
    : http://splitoff.ru/tehn-doc.html

64
3.2.3 Exterior dimensions
(1) Indoor unit
Models SKM22ZA, 25ZA
A750
75
92 40
60
746.9
7.5 62 62 7.5
16
VIEW A
65615
150 450 150
Room temp.
thermistor
Terminal
block
Piping for Gas ( Ø 9.52) 370
Piping for Liquid ( Ø 6.35) 420
Piping hole
( Ø 65)
Piping hole
( Ø 65)
Piping hole right (left)
178 3
250
4615
19
9236.5
4.5
36
117
40
37
36
569
49
Unit: mm
A790
15
67
51
60
62 18
16
780
VIEW A
15760
170 450 170
Room temp. thermistor
Terminal block
Piping for Gas
( Ø 9.52) 390
Piping for Liquid ( Ø 6.35) 440
Drain hose 600 ( Ø 16)
Piping hole
(
Ø 65)
Piping hole
( Ø 65)
Piping hole right (left)
Unit: mm
174 3
275
187.5 61
46
9260
117
37
6
36
56
9
49
Model SKM28ZA
    : http://splitoff.ru/tehn-doc.html

65
Model SKM50ZA Unit: mm
Models SKM32ZA, 40ZA
A790
15
67
51
60
62 18
16
780
VIEW A
15760
170 450 170
Room temp. thermistor
Terminal block
Piping for Gas
( Ø 12.7) 390
Piping for Liquid ( Ø 6.35) 440
Drain hose 600 (
Ø 16)
Piping hole
( Ø 65)
Piping hole
( Ø 65)
Piping hole right (left)
Unit: mm
174 3
275
187.5 61
46
9260
117
37
6
36
56
9
49
    : http://splitoff.ru/tehn-doc.html

66
Model SRRM40ZA
• Details of air outlet
ø4 ×8 (Holes for tapping screws)
Air outlet
Air inlet
540 100100
105 220 90 220 105
150 3050
170 2040
320
35
670 (Suspension bolts pitch)
740
35
107
Suspension bolts (M8 ×4)
(Procured by customer)
Controller
243
3030
515 (Suspension bolts pitch)
455
60 16
117
150
230
Air outlet
Terminal block
[I]
38
135 75
Gas piping (ø12.7)
Liquid piping (ø6.35)Drain hose
(Connection opening diameter ø16)
Unit: mm
    : http://splitoff.ru/tehn-doc.html

67
(2) Outdoor unit
Model SCM80ZA
L 2
L 3
L 4
L 1
Air
inlet
Air inlet
Air outlet
Maintenance
space
Required space for maintenance and air flow Minimum allowable space to the obstacles
Unit:mm
Mark
123
L1Open Open 500
L2300 50 Open
L3100 150 100
L4200 200 200
Installation type
Notes
(1) Avoid the location where four sides are entirely
surrounded by walls.
(2) Fix the unit by anchor bolts without fail. Restrict the
protrusion length of anchor bolt to 15 mm and under.
(3) When strong wind blows against the unit, direct the
discharge port at a right angle to the wind direction.
(4) Secure the space of 1 m and over at the top of unit.
(5) Make the height of obstruction wall in front of discharge
port lower than the height of unit.
Terminal block
Holes for drain
(Ø9.52 x 3pcs.)
Holes for anchor bolt
(M10 x 4pcs.)
Opening for
electric wiring
Service valve
(Gas Ø9.52)
Service valve
(Gas Ø12.7)
Service valve
(Gas Ø9.52)
Service valve
(Gas Ø12.7)
Service valve
(Liquid Ø6.35)
Service valve
(Liquid Ø6.35)
Service valve
(Liquid Ø6.35)
Service valve
(Liquid Ø6.35)
150 580 150
47
310222
40
40
20 380
340
55
40
20
145.2 26
138.9 120.1120.1 120.1
120.1120.1120.193.9
880
10
845
340
VIEW A
A
Unit: mm
    : http://splitoff.ru/tehn-doc.html

68
3.2.4 Piping system
Model SCM80ZA
Gas line
Liquid line
(Ø12.7)
(Ø9.52)
(Ø6.35)
(Ø6.35) (Ø6.35) (Ø6.35)
(Ø12.7)
(Ø9.52)
Service valve (Gas)
Outdoor Unit
Indoor Unit
Heat exchanger
Heating
Cooling
Thermistor (Th
I-R
)
Thermistor (Th
I-A
)
EVA
EVD
EVC EVB
Strainer
Discharge
Suction
Thermistor (Th
O-D
)
Accumlator
Service valve (Liquid)
Electronic expansion valve
Compressor
Check joint
Muffler
4way valve
Thermistor (Th
O-A
)
Thermistor (Th
O-R
)
Capilary tube
Heat exchanger
Expansion valve
High pressure regulator valve
    : http://splitoff.ru/tehn-doc.html

69
3.2.5 Selection chart
Correct the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can be
obtained in the following way.
Net capacity = Capacity shown on specification ×Correction factors as follows.
(1) Coefficient of cooling and heating capacity in relation to temperatures
(2) Correction of cooling and heating capacity in relation to one way length of refrigerant piping
It is necessary to correct the cooling and heating capacity in relation to the one way piping length between the indoor and outdoor
units.
(3) Correction relative to frosting on outdoor heat exchanger during heating
In additions to the foregoing corrections (1), (2) the heating capacity needs to be adjusted also with respect to the frosting on the
outdoor heat exchanger.
15
ISO-T1 Standard ConditionOutdoor air W.B. temperature °C W.B.
0 10-10 -5 5
14 16 18 20 22
15
10
27
25
20
15
20
25
30
35
40
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
43
24
20
ISO-T1 Standard ConditionIndoor air W.B. temperature °C W.B.
Heating
Cooling
Applicable range
Coefficient of cooling & Heating capacity in relation to temperature
Cooling operation
Outdoor air D.B.
temperature
°C D.B.
Heating operation
Indoor air D.B.
temperature
°C D.B.
Air inlet temperature of
outdoor unit in ºCWB
Adjustment coefficient
-10
0.95
-9
0.94
-7
0.93
-5
0.91
-3
0.88
-1
0.86
1
0.87
3
0.92
5
1.00
Piping length [m]
Cooling
Heating
7
1.0
1.0
10
0.99
1.0
15
0.975
1.0
20
0.965
1.0
25
0.95
1.0
    : http://splitoff.ru/tehn-doc.html

70
3.3 ELECTRICAL DATA
Meaning of marks
•Outdoor Unit
•Indoor Unit
FM I
CF I
SM
Tr
ZNR
DM
FS
Parts name
Fan motor
Capacitor (for FM
I )
Flap motor
Transformer
Varistor
Drain motor
Float switch
Symbol
Q
F
Th
I -A
Th
I -R
52X 1 ~ 5
Th I -H
Parts name
Fan motor control triac
Fuse
Thermistor (room temp.)
Thermistor (indoor H.X temp.)
Auxiliary relay
Thremistor (humidity)
Symbol
3.3.1 Electrical wiring
(1) Indoor unit
Models SKM22ZA, 25ZA, 28ZA, 32ZA, 40ZA
RD
WH
BK
JR
F (250V ·3.15A)
Power line
(Outdoor unit)
Black
Blue
Gray
Yellow
Red
White
Purple
Yellow/Green
BK
BL
GR
Y
RD
WH
PP
Y/GN
Color symbol
S
ZNR
CFI
CNC CNB
TR
FMI
Q
CNM
CNE CND CNG
Display Wireless
R-Amp
Back up
switch
Printed circuit board
ThI-AThI-R
FMI
SM
COM
CNU
CF
BL
RD RD BK BK
CNW
GR
PP
Y
WH
RD
1
2
Y/GN
3
CM
C
FM 0
Re
SA
CT
DS1, DS2
NF
52X
5
Parts name
Compressor motor
Capacitor
Fan motor
Reactor
Serge absorber
Current sensor
Diode stack
Noise filter
Auxiliary relay
Symbol
EEVA ~ D
20S
Tho-A
Tho-R
Tho-D
LED5
LED1 ~ 4
51C
Parts name
Electric expansion valve
4 way valve (coil)
Thermistor (outdoor air temp.)
Thermistor (outdoor H.X temp.)
Thermistor (discharge temp.)
Warning lamp (Red)
Serial signal lamp (Green)
Motor protector for CM
Symbol
    : http://splitoff.ru/tehn-doc.html