Mitsubishi SCM45ZA Bedienungsanleitung

191191

6. INVERTER MULTI-SPLIT SYSTEM

ROOM AIR-CONDITIONER[2room]

(Air to air heat pump type)

(OUTDOOR UNIT)

SCM45ZA

(INDOOR UNIT)

SKM22ZA

SKM25ZA

SKM28ZA

SKM32ZA

SKM40ZA

192

CONTENTS

6.1 GENERAL INFORMATION ........................................................................193

6.1.1 Specific features ................................................................................. 193

6.1.2 How to read the model name .............................................................193

6.2 SELECTION DATA ..................................................................................... 194

6.2.1 Specifications......................................................................................194

6.2.2 Range of usage & limitations.............................................................198

6.2.3 Exterior dimensions............................................................................199

6.2.4 Piping system......................................................................................201

6.2.5 Selection chart .................................................................................... 202

6.3 ELECTRICAL DATA...................................................................................203

6.3.1 Electrical wiring ..................................................................................203

6.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............. 205

6.5 APPLICATION DATA .................................................................................215

6.5.1 Installation of indoor unit ...................................................................216

6.5.2 Installation of remote controller ........................................................218

6.5.3 Installation of outdoor unit.................................................................219

6.5.4 Electrical wiring ..................................................................................220

6.5.5 Refrigerant piping ............................................................................... 221

6.5.6 Test run and handling instruction .....................................................223

6.6 MAINTENANCE DATA ............................................................................... 224

6.6.1 Trouble shooting .................................................................................224

6.6.2 Servicing .............................................................................................. 232

193

6.1 GENERAL INFORMATION

6.1.1 Specific features

(1) Equipped with an inverter scroll compressor.

¡Low noise. Low vibration and compact.

(2) The long piping makes the location of the inside and units flexible.

¡No need for additional charge of refrigerant : 20 m

¡Maximum piping length : 30 m

(3) Connectable indoor capacity

Number of connectable units : 1 to 2 units

Total of indoor units (class kW) : 6.5 kW

(4) Indoor units are available with 5 capacities.

5 capacities ········ 22, 25, 28, 32, 40

(5) 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.

(6) 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.

(7) 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 225)

6.1.2 How to read the model name

Example : SK M 25 Z A

Series No.

Inverter and heat pump type.

Product capacity

Multiple system

Model name SK : Wall mounted type

SC : Outdoor unit

194

Item

Models SKM22ZA SKM25ZA SKM28ZA SKM32ZA SKM40ZA

Cooling capacity W 2200 2500 2800 3200 4000

Heating capacity W 3200 3400 4000 4500 5400

Noise level

Cooling

Hi : 38 Lo : 29 Hi : 39 Lo : 31 Hi : 40 Lo : 30 Hi : 42 Lo : 31

Hi : 52 Lo : 43 Hi : 53 Lo : 45 Hi : 54 Lo : 44 Hi : 56 Lo : 45

Heating Hi : 39 Lo : 30 Hi : 40 Lo : 32 Hi : 41 Lo : 32 Hi : 42 Lo : 32

Hi : 53 Lo : 44 Hi : 54 Lo : 46 Hi : 55 Lo : 46 Hi : 56 Lo : 46

Exterior dimensions

Height ×Width ×Depth mm 250 ×750 ×178 275 ×790 ×174

Color Ivory white

Net weight kg 7.5 8.0

Air handling equipment

Fan type & Q’ty Tangential fan ×1

Motor W 17 18

Cooling 7.0 7.7 9.0 9.5

Air flow (at high) Heating CMM 7.5 9.1 10 10

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″)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 SCM45ZA

6.2 SELECTION DATA

6.2.1 Specifications

(1) Indoor unit

Models SKM22ZA, 25ZA, 28ZA, 32ZA, 40ZA

(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 motor error protection

Notes (1) The data are measured at the following conditions.

Item Indoor air temperature Outdoor air temperature Standards

Operation DB WB DB WB

Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1, JIS C9612

Heating 20ºC – 7ºC 6ºC ISO-T1, JIS C9612

Sound level

Power level

Sound level

Power level

195

Item

Model SCM45ZA

Cooling capacity W 4500 (2000 ~ 5100)

Heating capacity W 5600 (2200 ~ 6000)

Power source 1 Phase 220/240V 50Hz

Power consumption Cooling W1820 (680 ~ 2050)

Heating 1950 (650 ~ 2190)

Running current Cooling 8.4/7.7

Heating A9.0/8.2

Sound level

Cooling : 46 Heating : 48

Noise level

Power level

dB Cooling : 60 Heating : 62

Exterior dimensions

Height ×Width ×Depth mm 595 ×720 ×290

Color Stucco white

Net weight kg 36

Refrigerant equipment

Compressor type & Q’ty GR5490FD41 ×1

Motor kW 1.2

Starting method Direct start

Refrigerant control Capillary tubes +Electric expansion valve

Refrigerant kg R22 1.3 (Pre-charged up to the piping length of 20m)

Refrigerant oil R0.45 (BARREL FREEZE 32SAM)

Air handling equipment

Fan type & Q’ty Propeller fan ×2

Motor W 24

Air flow (at high) CMM 30

Shock & vibration absorber Rubber (for compressor)

Safety equipment

Size ×Core ×Number mm (in) Liquid line: φ6.35 (1/4″) ×2

Gas line: φ 9.52 (3/8″) ×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) ×1

Installation sheet, Manual instruction

Indoor units to be combined

(2) Outdoor unit

Model SCM45ZA

Compressor overheat protection, Overcurrent protection

High pressure protection, Serial signal error protection

Notes (1) The data are measured at the following conditions.

SKM22, 25, 28, 32, 40 type

Refrigerant

piping

Connec-

tion wiring

Item Indoor air temperature Outdoor air temperature Standards

Operation 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 20 m, additional charging is required. (20g/m)

196

(3) Operation data

¡The combinations of the indoor units is indicated by numbers. They are read as follows.

(Example) SKM22ZA /22 SKM40ZA /40

¡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) Running

current (A)

Room heating capacity (kW) Total capacity (kW)

A room

3.2

3.4

4.0

4.5

5.4

2.8

2.6

2.5

2.3

2.0

2.8

2.6

2.5

2.2

2.8

3.0

3.1

3.3

3.6

2.8

3.0

3.1

3.4

B room Min.

Standard

Max.

Min.

Standard

StandardMax.

1.4

2.2

3.2

3.4

4.0

4.5

5.4

5.6

3.9

4.0

4.7

5.6

6.0

400

650

1030

1170

1350

1580

2030

1980

1950

1900

1850

1780

1950

1880

1830

1750

1330

1390

1680

2080

2300

2190

2160

2100

2050

1970

2160

2080

2030

1940

4.73/4.34

5.37/4.92

6.20/5.68

7.25/6.65

9.32/8.54

9.09/8.33

8.95/8.21

8.72/8.00

8.49/7.79

8.17/7.49

8.95/8.21

8.63/7.91

8.40/7.70

8.03/7.37

room

22+22

22+25

22+28

22+32

22+40

25+25

25+28

25+32

25+40

(220/240V)

197

(b) Cooling

Indoor unit

combination

Cooling capacity (kW) Power consumption (W) Running

current (A)

Room cooling capacity (kW) Total capacity (kW)

A room

2.2

2.5

2.8

3.2

4.0

2.2

2.1

2.0

1.9

1.7

2.25

2.2

2.1

1.8

2.2

2.4

2.6

2.8

3.1

2.25

2.4

2.6

3.0

B room Min.

Standard

Max.

Min.

Standard

StandardMax.

1.1

2.0

2.2

2.5

2.8

3.2

4.0

4.4

4.5

4.6

4.7

4.8

4.5

4.6

4.7

4.8

2.5

2.8

3.0

3.5

4.5

4.7

4.8

4.9

5.0

5.1

4.8

4.9

5.0

5.1

350

680

750

900

1040

1200

1580

1750

1820

1830

1840

1850

1820

1830

1840

1850

900

1040

1150

1360

1850

1950

2020

2030

2040

2050

2020

2030

2040

2050

3.44/3.16

4.13/3.79

4.78/4.38

5.51/5.05

7.25/6.65

8.03/7.37

8.36/7.66

8.40/7.70

8.45/7.74

8.49/7.79

8.36/7.66

8.40/7.70

8.45/7.74

8.49/7.79

room

22+22

22+25

22+28

22+32

22+40

25+25

25+28

25+32

25+40

(220/240V)

198

6.2.2 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. 30m

6.5kW

1 to 2 units

SCM45ZA

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

199

6.2.3 Exterior dimensions

(1) Indoor unit

Models SKM22ZA, 25ZA

A750

92 40

746.9

7.5 62 62 7.5

VIEW A

65615

150 450 150

Room temp.

thermistor

Terminal

block

Piping for Gas (Ø9.52) 370

Piping for Liquid (Ø6.35) 420

Piping hole

(Ø65)

Piping hole

(Ø65)

Piping hole right (left)

178 3

250

4615

9236.5

4.5

117

569

Unit: mm

Model SKM28ZA

A790

62 18

780

VIEW A

15760

170 450 170

Room temp. thermistor

Terminal block

Piping for Gas

(Ø9.52) 390

Piping for Liquid (Ø6.35) 440

Drain hose 600 (Ø16)

Piping hole

(Ø65)

Piping hole

(Ø65)

Piping hole right (left)

Unit: mm

174 3

275

187.5 61

9260

117

200

Models SKM32ZA, 40ZA

A790

62 18

780

VIEW A

15760

170 450 170

Room temp. thermistor

Terminal block

Piping for Gas

(Ø12.7) 390

Piping for Liquid (Ø6.35) 440

Drain hose 600 (Ø16)

Piping hole

(Ø65)

Piping hole

(Ø65)

Piping hole right (left)

Unit: mm

174 3

275

187.5 61

9260

117

(2) Outdoor unit

Model SCM45ZA

Ground

terminal

Liquid line service

valve B Unit

Liquid line service

valve A Unit

42.5 14 13.5

84.7

96.5 42.5

14.4

595

340

312.5

290

48.1 46.6

88.2

Elongated hole

(2-16×12)

Drain hole

720 62

87 510

411.5

256

123

29.7

Terminal block

Gas line service

valve B Unit

Gas line service

valve A Unit

35°

(ø6.35)

(ø9.52)

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