Mitsubishi Electric Trane NTXSPF09A112AA Bedienungsanleitung

Indoor unit service manual

NTXFKS•A112AA Series (OBHT752)

PARTS CATALOG (OBBT753)

NTXSPF09A112AA

NTXSPF12A112AA

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 ············· 10

7. DATA································································ 12

8. ACTUATOR CONTROL··································· 20

9. SERVICE FUNCTIONS ··································· 21

10. TROUBLESHOOTING····································· 22

11. DISASSEMBLY INSTRUCTIONS···················· 43

SERVICE MANUAL

Models

NTXSPF09A112AA

NTXSPF12A112AA

NTXSPF15A112AA

NTXSPF18A112AA

No. OBHT753

OUTDOOR UNIT

1TECHNICAL CHANGES

Use the speci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.

NTXSPF09A112AA

NTXSPF12A112AA

NTXSPF15A112AA

NTXSPF18A112AA

1. New model

OBHT753

NTXSPF09A112AA

NTXSPF12A112AA

NTXSPF15A112AA

NTXSPF18A112AA

Piping

Air outlet

Drain outlet

Air inlet

(back and side)

Drain hose

PART NAMES AND FUNCTIONS

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

(back and side)

OBHT753

3SPECIFICATION

Outdoor unit model

NTXSPF09A112AA NTXSPF12A112AA NTXSPF15A112AA NTXSPF18A112AA

Capacity

Rated (Minimum~Maximum)

Cooling 1 Btu/h 9,000

(2,300 - 14,000)

12,000

(2,300 - 15,000)

15,000

(5,300 - 19,000)

17,000

(5,300 - 22,500)

Heating 47 1 Btu/h 11,000

(2,900 - 19,000)

13,000

(2,900 - 22,800)

18,000

(5,700 - 25,000)

21,000

(5,700 - 29,000)

Capacity

Rated (Maximum) Heating 17 2 Btu/h 7,500 (13,400) 8,800(14,800) 12,000 (20,500) 12,800 (23,000)

Power consumption

Rated (Minimum~Maximum)

Cooling 1 W570

(180 - 1,250)

890

(180 - 1,380)

1,120

(420 - 1,850)

1,350

(420 - 2,320)

Heating 47 1 W750

(270 - 2,370)

900

(270 - 2,390)

1,410

(480 - 3,410)

1,730

(480 - 3,430)

Power consumption

Rated (Maximum) Heating 17 2 W 810 (1,860) 930 (1,890) 1,300 (3,190) 1,430 (3,210)

EER 1 [SEER] 3

Cooling 15.8 [28.2] 13.6 [25.5] 13.5 [21.8] 12.6 [21.0]

HSPF IV 4Heating 13.0 12.0 11.6 11.3

COP Heating 1 4.3 4.2 3.7 3.5

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 SNB140FQUMT SNB172FQKMT

R.L.A 8.2 12.0

L.R.A 10.3 15.0

Refrigeration oil

 oz. (L) (Model)

11.8 (0.35)/(FV50S) 13.5 (0.40)/(FV50S)

Refrigerant control Linear expansion valve

Sound level 1Cooling dB(A) 48 48 51 51

Heating dB(A) 50 50 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. 83 124

External nish Munsell 3Y 7.8/1.1

Remote controller Wireless type

Control voltage (by built-in transformer)

V DC 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-

Indoor Flared

Outdoor Flared

Between the indoor

& outdoor units

Height difference

ft. 40 50

Piping length ft. 65 100

Refrigerant charge (R410A) 2 lb. 10 oz. 3 lb. 5 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

OBHT753

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

OBHT753

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

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

NTXSPF09A112AA NTXSPF12A112AA

Unit: inch (mm)

OBHT753

NTXSPF15A112AA NTXSPF18A112AA

16-7/16

1-9/16

1-5/8

Drain hole

6-7/8 19-11/16

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

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

Unit: inch (mm)

OBHT753

5WIRING DIAGRAM

NTXSPF09A112AA NTXSPF12A112AA

OBHT753

NTXSPF15A112AA NTXSPF18A112AA

FUSE (T6.3AL250V)

OBHT753

6REFRIGERANT SYSTEM DIAGRAM

Unit: inch (mm)

Outdoor

heat

exchanger

Flared connection

Defrost

thermistor

RT61

Discharge

temperature

thermistor

RT62

Flared connection

Stop valve

(with #100 mesh strainar)

Refrigerant flow in cooling

Compressor

4-way valve

Refrigerant flow in heating

Refrigerant pipe ø3/8 (ø9.52)

(with heat insulator)

Refrigerant pipe ø1/4 (ø6.35)

(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

Stop valve

(with 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

1/2 (ø12.7)

(with heat insulator)

Refrigerant pipe

1/4 (

ø6.35)

(with heat insulator)

LEV

Muffler

R.V. coil

heating ON

cooling OFF

Muffler

with #100 mesh strainer

Strainer

#100

Ambient

temperature

thermistor

RT65

Strainer

#100

Service

port

Outdoor heat

exchanger

temperature

thermistor

RT68

Stop valve

(with service port)

NTXSPF09A112AA NTXSPF12A112AA

NTXSPF15A112AA NTXSPF18A112AA

OBHT753

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