Mitsubishi MUZ-FH15NAH Owner's manual

NOTE:

RoHS compliant products have <G> mark on the spec name plate.

PARTS CATALOG (OBB684)

MUZ-FH06NA

MUZ-FH09NA

MUZ-FH12NA

MUZ-FH06NAH

MUZ-FH09NAH

MUZ-FH12NAH

CONTENTS

1. TECHNICAL CHANGES ······························2

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

3. SPECIFICATION ········································4

4. OUTLINES AND DIMENSIONS ·····················6

5. WIRING DIAGRAM ·····································8

6. REFRIGERANT SYSTEM DIAGRAM ···········14

7. DATA······················································16

8. ACTUATOR CONTROL ·····························27

9. SERVICE FUNCTIONS ······························28

10. TROUBLESHOOTING ·······························29

11. DISASSEMBLY INSTRUCTIONS ·················51

HFC

utilized

R410A

OUTDOOR UNIT

SERVICE MANUAL

No. OBH684

REVISED EDITION-D

Indoor unit service manual

MSZ-FH•NA Series (OBH683)

Models

MUZ-FH06NA

MUZ-FH09NA

-

1

MUZ-FH12NA

-

1

MUZ-FH15NA

MUZ-FH18NA

MUZ-FH18NA2

MUZ-FH06NAH

MUZ-FH09NAH

-

1

MUZ-FH12NAH

-

1

MUZ-FH15NAH

MUZ-FH18NAH

MUZ-FH18NAH2

OBH684 REVISED EDITION-C is void.

Revision D:

• Capacity corrections have been corrected [7-1. 2), 3)].

2

1

TECHNICAL CHANGES

Use the speciﬁ ed refrigerant only

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the spec labels provided with our products.

We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by

failure to follow the instructions.

Revision A:

• 3. SPECIFICATION has been modified.

(The values of COP have been modified.)

• 10. TROUBLESHOOTING has been modified.

Revision B:

• MUZ-FH18NA and MUZ-FH18NAH have been added.

MUZ-FH09NA MUZ-FH09NAH

MUZ-FH12NA MUZ-FH12NAH

MUZ-FH15NA MUZ-FH15NAH

1. New model

MUZ-FH18NA MUZ-FH18NAH

1. New model

MUZ-FH06NA MUZ-FH06NAH

1. New model

MUZ-FH09NA

MUZ-FH09NA -

1

MUZ-FH09NAH

MUZ-FH09NAH -

1

MUZ-FH12NA

MUZ-FH12NA -

1

MUZ-FH12NAH

MUZ-FH12NAH -

1

1. Model name has been changed.

2. New service part numbers have been set. (Refer to OBB684, 1-2.)

MUZ-FH18NA

MUZ-FH18NA2

MUZ-FH18NAH

MUZ-FH18NAH2

1. Model name has been changed.

Revision C:

• MUZ-FH06NA, MUZ-FH09/12NA-

1

, MUZ-FH18NA2, MUZ-FH06NAH, MUZ-FH09/12NAH-

1

and MUZ-FH18NAH2 have

been added.

Revision D:

• Capacity corrections have been corrected [7-1. 2), 3)].

OBH684D

3

MUZ-FH06NA MUZ-FH06NAH

MUZ-FH09NA MUZ-FH09NAH

MUZ-FH12NA MUZ-FH12NAH

MUZ-FH15NA MUZ-FH15NAH

MUZ-FH18NA MUZ-FH18NAH

MUZ-FH18NA2 MUZ-FH18NAH2

Piping

Air outlet

Drain outlet

Air inlet

(back and side)

Drain hose

PART NAMES AND FUNCTIONS

2

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

(back and side)

OBH684D

4

3

SPECIFICATION

Outdoor unit model

MUZ-FH06NA

MUZ-FH06NAH

MUZ-FH09NA

MUZ-FH09NAH

MUZ-FH12NA

MUZ-FH12NAH

MUZ-FH15NA

MUZ-FH15NAH

MUZ-FH18NA

MUZ-FH18NAH

MUZ-FH18NA2

MUZ-FH18NAH2

Capacity

Rated (Minimum~Maximum)

Cooling 1

Btu/h

6,000

(1,700 ~ 9,000)

9,000

(1,700 ~ 12,000)

12,000

(2,500 ~ 13,600)

15,000

(6,450 ~ 19,000)

17,200

(6,450 ~ 21,000)

Heating 47 1

Btu/h

8,700

(1,600 ~ 14,000)

10,900

(1,600 ~ 18,000)

13,600

(3,700 ~ 21,000)

18,000

(5,150 ~ 24,000)

20,300

(5,150 ~ 30,000)

Capacity

Rated (Maximum)

Heating 17 2

Btu/h

5,900 (10,700) 6,700 (12,200) 8,000(13,600) 11,000 (18,000) 13,700 (20,300)

Power consumption

Rated (Minimum~Maximum)

Cooling 1

W

315

(100 ~ 560)

560

(100 ~ 1,000)

870

(170 ~ 1,150)

1,200

(410 ~ 2,200)

1,430

(410 ~ 2,220)

1,375

(410 ~ 2,220)

Heating 47 1

W

545

(110 ~ 1,270)

710

(110 ~ 1,470)

950

(280 ~ 2,300)

1,300

(430 ~ 3,360)

1,720

(430 ~ 3,390)

Power consumption

Rated (Maximum)

Heating 17 2

W

500

(1,000) 600 (1,440) 720 (1,900) 1,020 (2,480) 1,320 (2,800)

EER

1

[SEER]

3

Cooling 19.1 [33.1] 16.1 [30.5] 13.8 [26.1] 12.5 [22.0] 12.0 [21.0] 12.5 [21.0]

HSPF IV

4

Heating

NA: 13.5 NA: 13.5 NA: 12.5 NA: 12.0 NA: 12.0 NA2: 12.0

NAH: 12.5 NAH: 12.5 NAH: 11.5 NAH: 11.0 NAH: 11.0 NAH2: 11.0

COP Heating

1 4.68 4.50 4.20 4.06 3.46

Power supply V , phase , Hz 208/230, 1 , 60

Max. fuse size (time delay) A 15 20

Min. circuit ampacity A 11 16

Fan motor F.L.A 0.50 0.93

Compressor

Model

SNB092FQAMT SNB140FQUMT

SNB172FQKMT

R.L.A 8.2 12.0

L.R.A 10.3 15.0

Refrigeration oil L (Model)

0.35 (FV50S) 0.35 (FV50S) 0.40 (FV50S)

Refrigerant control Linear expansion valve

Sound level

1

Cooling dB(A) 47 48 49 51 52

Heating dB(A) 48 49 51 55 55

Defrost method Reverse cycle

Dimensions

W in. 31-1/2 33-1/16

D in. 11-1/4 13

H in. 21-5/8 34-5/8

Weight Ib. 81 83 124

External ﬁ nish Munsell 3Y 7.8/1.1

Remote controller Wireless type

Control voltage (by built-in transformer)

VDC 12 - 24

Refrigerant piping Not supplied

Refrigerant pipe size

(Min. wall thickness)

Liquid in. 1/4 (0.0315)

Gas in. 3/8 (0.0315) 1/2 (0.0315)

Connection meth-

od

Indoor Flared

Outdoor Flared

Between the indoor

& outdoor units

Height difference

ft. 40 50

Piping length ft. 65 100

Refrigerant charge (R410A) 2 lb. 9 oz. 3 lb. 7 oz.

NOTE: Test conditions are based on AHRI 210/240.

1: Rating conditions (Cooling) — Indoor: 80˚FDB, 67˚FWB, Outdoor: 95˚FDB, (75˚FWB)

(Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 47˚FDB, 43˚FWB

2: (Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 17˚FDB, 15˚FWB

OBH684D

5

Test condition

ARI

Mode Test

Indoor air condition (°F) Outdoor air condition (°F)

Dry bulb Wet bulb Dry bulb Wet bulb

SEER

(Cooling)

"A-2" Cooling Steady State

at rated compressor Speed

80 67 95 (75)

"B-2" Cooling Steady State

at rated compressor Speed

80 67 82 (65)

"B-1" Cooling Steady State

at minimum compressor Speed

80 67 82 (65)

"F-1" Cooling Steady State

at minimum compressor Speed

80 67 67 (53.5)

"E-V" Cooling Steady State

at Intermediate compressor Speed

5

80 67 87 (69)

HSPF

(Heating)

"H1-2" Heating Steady State

at rated compressor Speed

70 60 47 43

"H3-2" Heating

at rated compressor Speed

70 60 17 15

"H0-1" Heating Steady State

at minimum compressor Speed

70 60 62 56.5

"H1-1" Heating Steady State

at minimum compressor Speed

70 60 47 43

"H2-V" Heating

at Intermediate compressor Speed

5

70 60 35 33

5

: At Intermediate compressor Speed

= ("Rated compressor speed" - "minimum compressor speed") / 3 + "minimum compressor speed".

3, 4

(2) OPERATION

Mode Condition

Intake air temperature (°F)

Indoor Outdoor

DB WB DB WB

Cooling

Standard temperature 80 67 95 —

Maximum temperature 90 73 115 —

Minimum temperature 67 57 14 —

Maximum humidity 78 % —

Heating

Standard temperature 70 60 47 43

Maximum temperature 80 67 75 65

Minimum temperature 70 60 -13 -14

OPERATING RANGE

(1) POWER SUPPLY

Rated voltage Guaranteed voltage (V)

Outdoor unit

208/230 V

1 phase

60 Hz

Min. 187

208 230 Max. 253

OBH684D

6

clear *1

*1

4 in. (100 mm) or more when

front and sides of the unit are clear

*2

When any 2 sides of left, right

and rear of the unit are clear

2 x hole 3/8 x 13/16

(MUZ-FH06/09/12NA)

(MUZ-FH06/09/12NAH)

REQUIRED SPACE

Liquid refrigerant pipe joint

Refrigerant pipe (flared) Ø 1/4

Gas refrigerant pipe joint

Refrigerant pipe (flared)

Ø 3/8

4 in. (100 mm)

or more

14 in. (350 mm)

or more

8 in. (200 mm)

or more *2

4 in. (100 mm)

or more

OUTLINES AND DIMENSIONS

4

Unit: inch

MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH

OBH684D

7

MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2

Unit: inch

16-7/16

1-9/16

1-5/8

Drain hole

6-7/8

19-11/16

13

2

Air in

Air out

2 x hole 13/32 x 13/16

14-3/16

33-1/16

4-5/16

3-3/16

34-5/8

17-25/32

Service panel

3-29/32

6-1/2

7-11/16

35

44

Liquid refrigerant pipe joint

Refrigerant pipe (flared)

Ø 1/4

Gas refrigerant pipe joint

Refrigerant pipe (flared)

Ø 1/2

*1 20 in. (500 mm) or more when front

and sides of the unit are clear

14in. (350 mm)

or more

4 in. (100 mm)

or more

REQUIRED SPACE

Clear *1

4 in. (100 mm)

or more

20 in. (500 mm)

or more *2

*2 When any 2 sides of left, right

and rear of the unit are clear

OBH684D

8

5

WIRING DIAGRAM

MUZ-FH06NA MUZ-FH09NA-

1

MUZ-FH12NA-

1

MUZ-FH06NAH MUZ-FH09NAH-

1

MUZ-FH12NAH-

1

OBH684D

9

MUZ-FH09NA MUZ-FH12NA

MUZ-FH09NAH MUZ-FH12NAH

OBH684D

10

MUZ-FH15NA MUZ-FH18NA

OBH684D

11

MUZ-FH18NA2

OBH684D

12

MUZ-FH15NAH MUZ-FH18NAH

OBH684D

13

MUZ-FH18NAH2

OBH684D

14

6

REFRIGERANT SYSTEM DIAGRAM

Unit: inch

Outdoor

heat

exchanger

Flared connection

Defrost

thermistor

RT61

Discharge

temperature

thermistor

RT62

Flared connection

Stop valve

(with strainar)

Stop valve

Refrigerant flow in cooling

Compressor

4-way valve

Refrigerant flow in heating

Refrigerant pipe ø3/8

(with heat insulator)

Refrigerant pipe ø1/4

(with heat insulator)

R.V. coil

heating ON

cooling OFF

Strainer

#100

LEV

Ambient

temperature

thermistor

RT65

Muffler

Capillary tube

O.D. 0.157 ×

I.D. 0.094 × 9-7/16

(

ø4.0 × ø2.4 × 240

)

Outdoor heat

exchanger

temperature

thermistor

RT68

Capillary tube

O.D. 0.118 ×

I.D. 0.079 × 8-9/32

(ø3.0 × ø2.0 × 210)

Service

port

Service

port

Muffler

Outdoor

heat

exchanger

Flared connection

Defrost

thermistor

RT61

Discharge

temperature

thermistor

RT62

Flared connection

Stop valve

Capillary tube

O.D. 0.157 ×

I.D. 0.094× 3-15/16

(ø4.0×ø2.4×100)

Refrigerant flow in cooling

Compressor

Service port

4-way valve

Refrigerant flow in heating

Refrigerant pipe

ø

1/2

(with heat insulator)

Refrigerant pipe

ø

1/4

(with heat insulator)

LEV

Muffler

R.V. coil

heating ON

cooling OFF

Muffler

#100

Strainer

#100

Outdoor heat

exchanger

temperature

thermistor

RT68

Ambient

temperature

thermistor

RT65

Strainer

#100

Service

port

MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH

MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2

OBH684D

15

Max. Length

A

Max. Height

difference

B

Indoor

unit

Outdoor unit

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE

Model

Refrigerant piping: ft. Piping size O.D: in.

Max. Length

A

Max. Height difference

B

Gas Liquid

MUZ-FH06NA

MUZ-FH06NAH

MUZ-FH09NA

MUZ-FH09NAH

MUZ-FH12NA

MUZ-FH12NAH

65 40 3/8 1/4

MUZ-FH15NA

MUZ-FH15NAH

MUZ-FH18NA

MUZ-FH18NAH

MUZ-FH18NA2

MUZ-FH18NAH2

100 50 1/2 1/4

ADDITIONAL REFRIGERANT CHARGE (R410A: oz.)

NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.

Model

Outdoor unit

precharged

Refrigerant piping length (one way): ft.

25 30 40 50 60 65

MUZ-FH06NA

MUZ-FH06NAH

MUZ-FH09NA

MUZ-FH09NAH

2 lb. 9 oz. 0 1.08 3.24 5.40 7.56 8.64

Calculation: X oz. = 1.08/5 oz./ft. × (Refrigerant piping length (ft.) - 25)

NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.

Model

Outdoor unit

precharged

Refrigerant piping length (one way): ft.

25 30 40 50 60 65

MUZ-FH12NA

MUZ-FH12NAH

2 lb. 9 oz. 0 1.62 4.86 8.10 11.34 12.96

Calculation: X oz. = 1.62/5 oz./ft. × (Refrigerant piping length (ft.) - 25)

NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.

Model

Outdoor unit

precharged

Refrigerant piping length (one way): ft.

25 30 40 50 60 70 80 90 100

MUZ-FH15NA

MUZ-FH15NAH

MUZ-FH18NA

MUZ-FH18NAH

MUZ-FH18NA2

MUZ-FH18NAH2

3 lb. 7 oz. 0 1.08 3.24 5.40 7.56 9.72 11.88 14.04 16.20

Calculation: X oz. = 1.08/5 oz./ft. × (Refrigerant piping length (ft.) - 25)

OBH684D

16

DATA7

MUZ-FH06NA MUZ-FH06NAH MUZ-FH09NA MUZ-FH09NAH MUZ-FH12NA MUZ-FH12NAH

MUZ-FH15NA MUZ-FH15NAH MUZ-FH18NA MUZ-FH18NAH MUZ-FH18NA2 MUZ-FH18NAH2

7-1. PERFORMANCE DATA

1) COOLING CAPACITY

Model

Indoor air Outdoor intake air DB temperature (˚F)

IWB (˚F)

75 85 95 105 115

TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC

MUZ-FH06NA

MUZ-FH06NAH

71 7.4 6.1 0.28 6.9 5.7 0.31 6.5 5.3 0.33 6.0 5.0 0.35 5.5 4.6 0.36

67 7.0 6.7 0.26 6.5 6.2 0.29 6.0 5.8 0.32 5.6 5.4 0.33 5.1 4.9 0.35

63 6.5 7.2 0.25 6.1 6.6 0.28 5.6 6.2 0.30 5.1 5.6 0.32 4.7 5.1 0.33

MUZ-FH09NA

MUZ-FH09NAH

71 11.0 8.7 0.50 10.3 8.1 0.55 9.7 7.6 0.59 9.0 7.1 0.62 8.3 6.5 0.64

67 10.4 9.6 0.47 9.7 8.9 0.52 9.0 8.3 0.56 8.4 7.7 0.59 7.7 7.1 0.62

63 9.8 10.3 0.45 9.1 9.6 0.50 8.5 8.9 0.53 7.7 8.1 0.57 7.0 7.4 0.59

MUZ-FH12NA

MUZ-FH12NAH

71 14.7 10.2 0.77 13.7 9.6 0.85 12.9 9.0 0.91 12.0 8.4 0.96 11.0 7.7 1.00

67 13.9 11.6 0.73 13.0 10.8 0.80 12.0 10.0 0.87 11.2 9.3 0.92 10.3 8.5 0.97

63 13.1 12.6 0.70 12.1 11.7 0.77 11.3 10.9 0.83 10.3 9.9 0.89 9.4 9.0 0.92

MUZ-FH15NA

MUZ-FH15NAH

71 18.4 10.4 1.07 17.2 9.7 1.17 16.1 9.1 1.26 15.0 8.5 1.33 13.8 7.8 1.38

67 17.4 12.2 1.01 16.2 11.3 1.11 15.0 10.5 1.20 14.0 9.8 1.27 12.8 9.0 1.33

63 16.4 13.6 0.96 15.2 12.6 1.06 14.1 11.8 1.15 12.8 10.7 1.22 11.7 9.8 1.27

MUZ-FH18NA

MUZ-FH18NAH

71 21.1 11.3 1.27 19.7 10.6 1.39 18.5 9.9 1.50 17.2 9.2 1.58 15.8 8.5 1.64

67 20.0 13.4 1.20 18.6 12.4 1.32 17.2 11.5 1.43 16.0 10.7 1.52 14.7 9.9 1.59

63 18.7 15.1 1.14 17.4 14.0 1.27 16.2 13.0 1.37 14.7 11.8 1.46 13.4 10.8 1.52

MUZ-FH18NA2

MUZ-FH18NAH2

71 21.1 11.3 1.22 19.7 10.6 1.34 18.5 9.9 1.44 17.2 9.2 1.52 15.8 8.5 1.58

67 20.0 13.4 1.16 18.6 12.4 1.27 17.2 11.5 1.38 16.0 10.7 1.46 14.7 9.9 1.53

63

18.7 15.1 1.10 17.4 14.0 1.22 16.2 13.0 1.31 14.7 11.8 1.40 13.4 10.8 1.46

NOTE: 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.

2) COOLING CAPACITY CORRECTIONS

Refrigerant piping length (one way: ft.)

25 (std.) 40 65 100

MUZ-FH06NA

MUZ-FH06NAH

MUZ-FH09NA

MUZ-FH09NAH

MUZ-FH12NA

MUZ-FH12NAH

1.0 0.988 0.967 -

MUZ-FH15NA

MUZ-FH15NAH

MUZ-FH18NA

MUZ-FH18NAH

MUZ-FH18NA2

MUZ-FH18NAH2

1.0 0.985 0.963 0.933

3) HEATING CAPACITY CORRECTIONS

Refrigerant piping length (one way: ft.)

25 (std.) 40 65 100

MUZ-FH06NA

MUZ-FH06NAH

MUZ-FH09NA

MUZ-FH09NAH

MUZ-FH12NA

MUZ-FH12NAH

1.0 0.977 0.993 -

MUZ-FH15NA

MUZ-FH15NAH

MUZ-FH18NA

MUZ-FH18NAH

MUZ-FH18NA2

MUZ-FH18NAH2

1.0 0.977 0.993 0.987

OBH684D

17

4) HEATING CAPACITY

Model

Indoor air Outdoor intake air WB temperature (˚F)

IDB (˚F)

5 152535434555

TC TPC TC TPC TC TPC TC TPC TC TPC TC TPC TC TPC

MUZ-FH06NA

75 3.8 0.32 5.0 0.41 6.3 0.48 7.5 0.53 8.5 0.56 8.7 0.57 9.9 0.59

70 4.1 0.31 5.4 0.39 6.5 0.47 7.7 0.52 8.7 0.55 9.0 0.56 10.1 0.58

65 4.4 0.29 5.5 0.38 6.8 0.45 8.0 0.50 9.0 0.53 9.2 0.54 10.4 0.57

MUZ-FH06NAH

75 3.8 0.45 5.0 0.53 6.3 0.60 7.5 0.53 8.5 0.55 8.7 0.56 9.9 0.58

70 4.1 0.44 5.4 0.52 6.5 0.59 7.7 0.51 8.7 0.54 9.0 0.55 10.1 0.57

65 4.4 0.42 5.5 0.50 6.8 0.58 8.0 0.50 9.0 0.53 9.2 0.53 10.4 0.56

MUZ-FH09NA

75 4.8 0.42 6.3 0.53 7.9 0.62 9.4 0.69 10.6 0.73 11.0 0.74 12.4 0.77

70 5.2 0.40 6.7 0.51 8.2 0.61 9.6 0.67 10.9 0.71 11.2 0.72 12.7 0.75

65 5.5 0.38 6.9 0.49 8.6 0.59 10.0 0.66 11.2 0.69 11.6 0.70 13.0 0.74

MUZ-FH09NAH

75 4.8 0.55 6.3 0.66 7.9 0.75 9.4 0.69 10.6 0.73 11.0 0.74 12.4 0.77

70 5.2 0.53 6.7 0.64 8.2 0.74 9.6 0.67 10.9 0.71 11.2 0.72 12.7 0.75

65 5.5 0.51 6.9 0.62 8.6 0.72 10.0 0.66 11.2 0.69 11.6 0.70 13.0 0.74

MUZ-FH12NA

75 6.0 0.56 7.9 0.71 9.9 0.83 11.8 0.93 13.3 0.97 13.7 0.99 15.5 1.03

70 6.5 0.54 8.4 0.68 10.2 0.81 12.0 0.90 13.6 0.95 14.0 0.97 15.8 1.01

65 6.8 0.51 8.6 0.66 10.7 0.78 12.4 0.88 14.0 0.93 14.4 0.94 16.2 0.99

MUZ-FH12NAH

75 6.0 0.69 7.9 0.84 9.9 0.96 11.8 0.93 13.3 0.97 13.7 0.99 15.5 1.03

70 6.5 0.67 8.4 0.81 10.2 0.94 12.0 0.90 13.6 0.95 14.0 0.97 15.8 1.01

65 6.8 0.64 8.6 0.79 10.7 0.91 12.4 0.88 14.0 0.93 14.4 0.94 16.2 0.99

MUZ-FH15NA

75 7.9 0.77 10.4 0.97 13.1 1.14 15.6 1.27 17.6 1.33 18.1 1.35 20.5 1.40

70 8.6 0.73 11.1 0.94 13.5 1.11 15.9 1.24 18.0 1.30 18.5 1.33 21.0 1.38

65 9.0 0.70 11.3 0.90 14.1 1.07 16.5 1.20 18.5 1.27 19.1 1.29 21.4 1.35

MUZ-FH15NAH

75 7.9 0.90 10.4 1.10 13.1 1.27 15.6 1.27 17.6 1.33 18.1 1.35 20.5 1.40

70 8.6 0.86 11.1 1.07 13.5 1.24 15.9 1.24 18.0 1.30 18.5 1.33 21.0 1.38

65 9.0 0.83 11.3 1.03 14.1 1.20 16.5 1.20 18.5 1.27 19.1 1.29 21.4 1.35

MUZ-FH18NA

75 8.9 1.01 11.8 1.28 14.7 1.51 17.6 1.68 19.8 1.76 20.4 1.79 23.1 1.86

70 9.6 0.97 12.5 1.24 15.2 1.47 18.0 1.63 20.3 1.72 20.9 1.75 23.6 1.82

65 10.2 0.93 12.8 1.19 15.9 1.42 18.6 1.59 20.9 1.68 21.5 1.70 24.2 1.79

MUZ-FH18NAH

75 8.9 1.14 11.8 1.41 14.7 1.64 17.6 1.68 19.8 1.76 20.4 1.79 23.1 1.86

70 9.6 1.10 12.5 1.37 15.2 1.60 18.0 1.63 20.3 1.72 20.9 1.75 23.6 1.82

65 10.2 1.06 12.8 1.32 15.9 1.55 18.6 1.59 20.9 1.68 21.5 1.70 24.2 1.79

MUZ-FH18NA2

75 8.9 1.01 11.8 1.28 14.7 1.51 17.6 1.68 19.8 1.76 20.4 1.79 23.1 1.86

70 9.6 0.97 12.5 1.24 15.2 1.47 18.0 1.63 20.3 1.72 20.9 1.75 23.6 1.82

65 10.2 0.93 12.8 1.19 15.9 1.42 18.6 1.59 20.9 1.68 21.5 1.70 24.2 1.79

MUZ-FH18NAH2

75 8.9 1.14 11.8 1.41 14.7 1.64 17.6 1.68 19.8 1.76 20.4 1.79 23.1 1.86

70 9.6 1.10 12.5 1.37 15.2 1.60 18.0 1.63 20.3 1.72 20.9 1.75 23.6 1.82

65 10.2 1.06 12.8 1.32 15.9 1.55 18.6 1.59 20.9 1.68 21.5 1.70 24.2 1.79

NOTE: 1. IDB : Intake air dry-bulb temperature

TC : Total Capacity (x10

3

Btu/h) TPC : Total Power Consumption (kW)

2. Above data is for heating operation without any frost.

How to operate with fixed operational frequency of the compressor.

1. Press the EMERGENCY OPERATION switch on the front of the indoor unit, and select either EMERGENCY COOL

mode or EMERGENCY HEAT mode before starting to operate the air conditioner.

2. The compressor starts with operational frequency.

3. The fan speed of the indoor unit is High.

4. This operation continues for 30 minutes.

5. In order to release this operation, press the EMERGENCY OPERATION switch twice or once, or press any button on

the remote controller.

OBH684D

18

7-2. PERFORMANCE CURVE

Cooling

This value of frequency is not the same as the actual frequency in operating. Refer to 7-5 and 7-6 for the relationships

between frequency and capacity.

71

67

63

65 75 85 95 105 115

0.6

0.7

0.8

0.9

1.0

1.1

Indoor intake air WB temperature (°F)

SHF at rating condition = 0.83

= 398 CFM

Airflow

Outdoor intake air DB temperature (°F)

Total power consumption

(kW)

MUZ-FH06NA MUZ-FH06NAH

MUZ-FH12NA MUZ-FH12NAH MUZ-FH15NA MUZ-FH15NAH

Cooling capacity (

at Rated frequency)

0.9

1.0

1.1

1.2

1.3

1.4

1.5

14 23 32 41 50 59 68 77 86 95 104 113

Outdoor intake air DB temperature(°F)

Capacity correction factors

76

75

68

64

72

Indoor intake air Wet-bulb

temperature( F)

Indoor air Wet-bulb temperature

difference (°F)

71

67

63

65 75 85 95 105 115

0.9

1.0

1.1

1.2

1.3

1.4

Indoor intake air WB temperature (°F)

SHF at rating condition = 0.7

= 411 CFM

Airflow

Outdoor intake air DB temperature (°F)

Total power consumption

(kW)

MUZ-FH18NA MUZ-FH18NAH

71

67

63

65 75 85 95 105 115

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

Indoor intake air WB temperature (°F)

SHF at rating condition = 0.67

= 437 CFM

Airflow

Outdoor intake air DB temperature (°F)

Total power consumption

(kW)

71

67

63

65 75 85 95 105 115

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

Indoor intake air WB temperature (°F)

SHF at rating condition = 0.67

= 437 CFM

Airflow

Outdoor intake air DB temperature (°F)

Total power consumption

(kW)

71

67

63

65 75 85 95 105 115

0.4

0.5

0.6

0.7

0.8

Indoor intake air WB temperature (°F)

SHF at rating condition = 0.92

= 381 CFM

Airflow

Outdoor intake air DB temperature (°F)

Total power consumption

(kW)

71

67

63

65 75 85 95 105 115

0.1

0.2

0.3

0.4

0.5

Indoor intake air WB temperature (°F)

SHF at rating condition = 0.96

= 381 CFM

Airflow

Outdoor intake air DB temperature (°F)

Total power consumption

(kW)

MUZ-FH09NA MUZ-FH09NAH

MUZ-FH18NA2 MUZ-FH18NAH2

OBH684D

19

65

70

75

-5 5 1525354555

65

0.2

0.4

0.6

0.8

Indoor intake air DB temperature (°F)

= 437 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

65

70

75

-5 5 1525354555

65

0.2

0.4

0.6

0.8

Indoor intake air DB temperature (°F)

= 437 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

65

70

75

-5 5 1525354555

65

0.3

0.6

0.9

1.2

Indoor intake air DB temperature (°F)

= 454 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

Heating

MUZ-FH15NA

Indoor air Dry-bulb temperature

difference (°F)

Outdoor intake air WB temperature (°F)

-4 5 142332415059

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

Heating capacity (

at Rated frequency)

Capacity correction factor

59

68

79

Indoor intake air Dry-bulb temperature ( F)

65

70

75

-5 5 1525354555

65

0.50

0.75

1.00

1.25

1.50

Indoor intake air DB temperature (°F)

= 454 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

MUZ-FH09NA

MUZ-FH12NA

65

70

75

-5 5 1525354555

65

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Indoor intake air DB temperature (°F)

= 437 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

65

70

75

-5 5 1525354555

65

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Indoor intake air DB temperature (°F)

= 437 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

65

70

75

-5 5 1525354555

65

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

Indoor intake air DB temperature (°F)

= 454 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

MUZ-FH09NAH

MUZ-FH12NAH

MUZ-FH15NAH

65

70

75

-5 5 1525354555

65

0.5

0.7

0.9

1.1

1.3

1.5

Indoor intake air DB temperature (°F)

= 497 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

MUZ-FH06NA MUZ-FH06NAH

OBH684D

20

MUZ-FH18NA

This value of frequency is not the same as the actual frequency in operating. Refer to 7-5 and 7-6 for the relationships

between frequency and capacity.

65

70

75

-5 5 1525354555

65

0.50

0.75

1.00

1.25

1.50

1.75

2.00

Indoor intake air DB temperature (°F)

= 514 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

65

70

75

-5 5 1525354555

65

0.50

0.75

1.00

1.25

1.50

1.75

2.00

Indoor intake air DB temperature (°F)

= 514 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

MUZ-FH18NAH

65

70

75

-5 5 1525354555

65

0.75

1.00

1.25

1.50

1.75

2.00

Indoor intake air DB temperature (°F)

= 514 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

65

70

75

-5 5 1525354555

65

0.75

1.00

1.25

1.50

1.75

2.00

Indoor intake air DB temperature (°F)

= 514 CFM

Airflow

Outdoor intake air WB temperature (°F)

Total power consumption

(kW)

7-3. CONDENSING PRESSURE

Cooling

Data are based on the condition of indoor humidity 50 %.

Air flow should be set to High speed.

MUZ-FH06NA MUZ-FH06NAH

65 70 75 80 85 90 95 100 105

200

250

300

350

400

450

500

(°F) (°F)

60 65 70 75 80 85 90 95 100 105

90

110

130

150

170

190

(PSIG)

Condensing pressure

Suction pressure

Outdoor ambient temperature

Indoor DB temperature (°F)

(PSIG)

Indoor DB temperature (°F)

Outdoor ambient temperature

86

80

75

70

86

80

75

70

65 70 75 80 85 90 95 100 105

200

250

300

350

400

450

500

(°F) (°F)

60 65 70 75 80 85 90 95 100 105

90

110

130

150

170

190

(PSIG)

Condensing pressure

Suction pressure

Outdoor ambient temperature

Indoor DB temperature (°F)

(PSIG)

Indoor DB temperature (°F)

Outdoor ambient temperature

86

80

75

70

86

80

75

70

MUZ-FH09NA MUZ-FH09NAH

MUZ-FH18NA2 MUZ-FH18NAH2

OBH684D

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Mitsubishi MUZ-FH15NAH Owner's manual

Mitsubishi MUZ-FH15NAH Owner's manual

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