Mitsubishi Electronics MS09NW2, MUM18NW User Manual

DUCTLESS SPLIT-TYPE AIR CONDITIONERS

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MUM18NW

LCD Wireless remote controller

MS09NW MS09NW

TECHNICAL & SERVICE MANUAL

Wireless type

Models

MS09NW✕2 •MUM18NW

CONTENTS

No.OB202

1. FEATURES·························································2

2. TECHNICAL CHANGES ····································3

3. PART NAMES AND FUNCTIONS······················3

4. SPECIFICATIONS ··············································4

5. DATA ···································································5

6. OUTLINES AND DIMENSIONS·························9

7. WIRING DIAGRAM ··········································10

8. REFRIGERANT SYSTEM DIAGRAM··············11

9. TROUBLESHOOTING······································12

10. DISASSEMBLY INSTRUCTIONS·····················14

11. PARTS LIST······················································17

12. OPTIONAL PARTS ···········································18

NOTE:For parts list, please refer to the following manuals.

MS09NW ➝ OB192

The Slim Line. From Mitsubishi Electric.

1 FEATURES

MUM18NW

LCD Wireless remote controller

MS09NW MS09NW

This “2 to 1” Multi system consists of a single outdoor unit with two compressors that permit up to two indoor units to be installed separate rooms, each with its own controller.

Cooling Capacity (BTU/h)

Operation

1 Indoor Unit Operation

2 Indoor Unit Operatin

Indoor unit

MS09NW

8,400

—

8,400

MS09NW

— 8,400 8,400

1.SPACE-SAVING LAYOUT

Two indoor units are served by a single outdoor unit whose installation requires only minimum space. This allows equipment installed outside the house to be arranged in a neat, space-saving layout.

2.FLEXIBLE INSTALLATION OF INDOOR UNITS

Each indoor unit can be connected to piping up to 49 feet in length, providing plenty of freedom in determining the best locations for installation.

3.AUTO-RESTART FUNCTION

The auto restart function restarts the equipment when power is restored following an outage automatically. Operation resumes in the mode in which the equipment was running immediately before the outage.

HIGH PERFORMANCE ROTARY COMPRESSOR

The advanced design of Mitsubishi Electric’s powerful and energyefficient rotary compressor results in lower operating costs and longer service life.

2

2 TECHNICAL CHANGES

MSM18EW ➔ MSM18NW

1. Indoor unit has been changed.

2. Outdoor unit has been changed.

3. Remove controller has been changed. (The timer function was changed to the clock timer function.)

4. Indoor auto vave has been adopted.

5. Outdoor fan motor has been changed. (SGW-60F-AC➔RA6W60-AA)

6. The varistor and the fuse have been added to electric circuit of the outdoor unit.

3 PART NAMES AND FUNCTIONS

OUTDOOR UNIT

MUM18NW

3

4 SPECIFICATIONS

Model

MSM18NW

SINGLE DOUBLE

Cooling capacity w1 BTU/h 8,400 8,400✕2

850 1,700

9.9

10.0

MS09NW✕2

White

115,60,1

15

0.5

0.37 208-265-328 177-226-279

–

5/8

32-1/16

7-3/16

10-13/16

18

Max. 49

Max. 25

Flared

3/8

1/4

Not supplied (optional parts)

12V DC

Wireless type

122

23-7/8

11-7/16 (12-5/8)

33-1/2

Capillary tube

37✕2

10✕2

C-R 0.98 C-S 2.21

KH122WES✕2

1.0

14+1314

15✕2

208/230,60,1

Munsell 5Y6.5/1

MUM18NW

w1 WPower consumption EER (Double unit operation) SEER (Double unit operation) INDOOR UNIT MODEL Extenal finish Power Supply V, Hz, Phase

A

F.L.A

CFM CFM

(Pints/h)

in. in. in. in.

lbs.

V, Hz, Phase

A

F.L.A

Winding resistance (at 68˚F) "

Model

W D H

Dry Wet

Liquid Gas Indoors Outdoors Height difference Piping length

R.L.A L.R.A

in. in. in.

in. in.

ft ft

lbs.

Max. fuse size (time delay) Min. ampacity Fan motor

Airflow Lo-Me-Hi

Moisture removal Cond. drain connection OD

Dimensions

Weight OUTDOOR UNIT MODEL External fnish Power supply Max. fuse sizu (time delay) Min. ampacity Fan motor

Compressor

Refrigerant control

Dimensions

Weight REMOTE CONTROLLER Control voltage (be built-in transformer) REFRIGERANT PIPING

Pipe size Connection

method Between the

indoor & outdoor units

Items

Notes w1. Rating conditions (cooling) — Inddor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB

Operating Range

Cooling

Maximum Maximum

Indoor air intake temperature

90˚FDB,71˚FWB 67˚FDB,57˚FWB

Outdoor air intake temperature

115˚FDB

67˚FDB

4

Models

Indoor air Outdoor intake air DB temperature(˚F

)

MS09NW

71 67 63

TC

10.3

9.74

9.16

SHC

5.93

6.91

7.72

TPC

0.76

0.71

0.68

TC

9.61

9.07

8.48

SHC

5.55

6.44

7.16

TPC

0.83

0.79

0.75

TC

9.03

8.4

7.9

SHC

5.21

5.95

6.66

TPC

0.89

0.85

0.81

TC

8.4

7.81

7.18

SHC

4.84

5.55

6.06

TPC

0.94

0.90

0.87

TC

7.73

7.18

6.55

SHC

4.46

5.10

5.53

TPC

0.98

0.94

0.90

IWB

(˚F)

75 85 95 105 115

Notes 1. IWB : Intake air wet-bulb temperature TC : Total Capacity (x10

3

Btu/h), SHC : Sensible Heat Capacity (x10

3

Btu/h)

TPC : Total Power Consumption (kW)

2. SHC is based on 80˚F of indoor intake air DB temperature.

MODEL

Refrigerant piping length (one way)

MS-09NW

1.0

25ft (std)

0.954

40ft

0.927

49ft

5 DATA

65

0.6

0.8

1.0

1.2

6

8

10

12

75 85 95 105 115

Outdoor intake air DB temperature (-F)

Total power consumption (kW) Total capacity (o 10

3

Btu/h)

Cooling capacity

SHF at rating condition = 0.71

Airflow = 279CFM

Bypass Factor = 0.24

Indoor intake air WB temperature (-F)

63

67

71

63

67

71

1.PERFORMANCE DATE (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT) MS09NW✕ 2

MUM18NW

2) COOLING CAPACITY CORRECTIONS

1.PERFORMANCE CURVE (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

NOTE : Apoint on the curve shows the reference point.

MS09NW MUM18NW

5

3.CONDENSING PRESSURE AND SUCTION PRESURE

68

40

50

60

70

80

90

100

(PSIG)

70

Outdoor ambient temperature

75 80 85 90 95 100 104-F

Suction pressure

70

86-F

80

75

Indoor DB temperature

68

170

180

200

220

240

260

280

300

(PSIG)

70

Outdoor ambient temperature

75 80 85 90 95 100 104-F

70

75

80

86-F

Condensing pressure

Indoor DB temperature

(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the corve shows the reference point.

MS09NW MUM18NW

6

2.STANDARD OPERATION DATA

Model

Total

Electrical circuit

Refrigerant circuit

Indoor side

Outdoor side

Item Capacity SHF Input Indoor unit model Power supply (V,Hz,{) Input Fan current Outdoor unit model Power supply (V,Hz,{) Input Comp. current Fan current Condensing pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Comp. shell bottom temp. Ref. pipe length Refrigerant charge Intake air temperature Discharge air temperature

WB

DB

WB Fan speed Airflow (Hi) Intake air temperature

DB

WB Fan speed Airflow

Unit

Btu/h

—

kW

A

kW

A

A psi.G psi.G

˚F ˚F ˚F ˚F

ft

— ˚FDB

˚F ˚F ˚F

rpm

CFM

˚F ˚F

rpm

CFM

MSM18NW

Single Double

Cooling

8,400 8,400✕2

0.71 0.71

0.85 1.70 MS09NW

115.60.1

0.035✕2

0.34✕2

MUM18NW

208/230.60.1(3-wire)

0.815 1.63

6.64 7.16✕2

1.0

260 270

75 75

194 191

116 118

64 54

172

25✕2

1lds 14oz✕2

80

67 60 60 57 57

1,230

279

95

—

900

1,150

3.POWER SUPPLY MSM18NW

115V, 60Hz, 1[

POWER SUPPLY

INDOOR UNIT

OUTDOOR UNIT

SIGNAL WIRE 2 wire DC12V

115V

commom 230V

115V

Field installed 208/230V, 60Hz, 1[ 3wire

7