Samsung FH052EAMT, FH070EAMT, UH052EAMT, UH070EAMT Service Manual

CEILING TYPE AIR CONDITIONER

INDOOR UNIT

FH052EAMT FH070EAMT

SERVICE

OUTDOOR UNIT

UH052EAMT UH070EAMT

Manual

CONTENTSAIR CONDITIONER

1. Product Specifications

2. Disassembly and Reassembly

3. Refrigerating Cycle Diagram

4. Set Up the Model Option

5. Control Specification & Troubleshooting

6. Exploded Views and Parts List

7. PCB Diagram

8. Wiring Diagram

9. Schematic Diagram

1. Product Specifications

1-1 Table

MODEL

Capacity

Power Supply ø/V/Hz

Power Input

Running Current

Fan Speed

Air Flow

Indoor

Unit

Outdoor

Unit

Noise Level(Hi) (Sound Pressure)

Heat Exchanger

Fan

Dimensions W mm

Weight Net / Gross kg

Fan Speed

Air Flow(Hi) m Noise Level

(Sound Pressure)

Fan

Compressor

INDOOR UNIT

OUTDOOR UNIT

Cooling

Heating

Cooling W Heating W Cooling A Heating A

H.H r.p.m

Hi r.p.m Mid r.p.m Low r.p.m H.H m

Hi m3/min Mid m Low m3/min

Cooling(Hi) dB(A) Heating(Hi) dB(A)

Type

Row x Stages x Fin Pitch

Type

Motor Output W

Hmm

Dmm

Hi r.p.m Low r.p.m

Cooling(Hi) dB(A) Heating(Hi) dB(A)

Type

Motor Output W

Type

Model

Motor Output kW

Protection

Btu/h

/min

FH052EAMT UH052EAMT

18,700

5,500

20,400

6,000

1/220 ~ 240/50

1,800 1,850

8.0

8.2

1,020

920 820

12 11 10 48 48

Slit

3 x 12 x 1.5mm

Sirocco

200

1,000

650

22 / 26

750 400

45 60 61

Propeller

Rotary

NN21VBAMT

1.3

Internal

FH070EAMT UH070EAMT

23,800

7,000

26,100

7,700

1/220 ~ 240/50

2,400 2,600

11.0

11.9

1,160 1,060

960

14 13 12 48 48

Slit

3 x 12 x 1.5mm

Sirocco

200

1,000

650

22 / 26

850 340

51 60 61

Propeller

Rotary

NN29VACMT

1.9

Internal

1Samsung Electronics

Table(cont.)

MODEL

Outdoor

Unit

Piping

INDOOR UNIT

OUTDOOR UNIT

Type

Refrigerant

Heat Exchanger

Dimensions

Weight Net / Gross kg

Pipe O.D Size

Connection Method

Between

Charge g

Adding Charge g/m

Control

Type

Row x Stages x Fin Pitch

H mm

Wmm

Dmm

Liquid mm(inch)

Gas mm(inch)

Height m

Pipe Length m

FH052EAMT UH052EAMT

R410a

1,550

Elec.Expansion Valve

Slit

2 x 28 x 1.5mm

648 880 310

67 / 72

6.35(1/4")

12.7(1/2") Flare

15 30

FH070EAMT UH070EAMT

R410a

1,650

Elec.Expansion Valve

Slit

2 x 28 x 1.5mm

648 880 310

69 / 74

6.35(1/4")

15.88(5/8") Flare

15 30

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1-2 Dimensions

240

200

650

197

922

1,000

1-2-1 Indoor Unit

Pipe outlet (bottom side)

(Unit : mm)

Back side

Air intake hole (Ø50) Wiring hole

Drain hose outlet

Remote control sensor

Defrosting indicator

Filter sign indicator Fan indicator

Auto indicator Timer indicator

Operation indicator

On/Off button

Air flow blade(up /down)

Air flow blade(right /left)

Air filter

Front grille

3Samsung Electronics

880

648

310

Product Specifications

1-2-2 Outdoor Unit

(Unit : mm)

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2. Disassembly and Reassembly

Stop operation of the air conditioner and remove the power cord before repairing the unit.

2-1 Indoor Unit

No Parts Procedure Remark

1 Electrical

Part

1) Open the grille by pressing 3 position. (center and both side)

2) Detach the air inlet grille.

3) Open the cover of component electrical box by removing 3 screws. (center and both side)

5Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

2 Fan & Motor

1) Detach the screw and untie earth wire of motor.

2) Disconnect of housing of motor wire.

3) Disconnect the capacitor wire.

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Disassembly and Reassembly

No Parts Procedure Remark

4) Loosen the guard safety by removing 6 screws.

5) Detach the upper case of fan. (2EA)

6) Loosen the 4 screws what is fix the motor.

7) Detach the fan and motor assembly.

7Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

8) Loosen the set fixing bolts. (with a M3 wrench)

9) Detach the fan.

3 Drain Pan

1) Disconnect the display pcb wire as shown in picture. (white housing)

2) Disconnect the step motor wire as shown in picture. (blue housing)

3) Disassemble the hanger bracket by removing the 1 screw.

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Disassembly and Reassembly

No Parts Procedure Remark

4) Loosen the 3 screws of front side.

5) Disassemble the assembly front cover part.

6) Disconnect the step motor wire as shown in picture.

7) Detach the wire clamp fixed in base part.

8) Detach the front cover assembly completely.

9Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

9) Loosen the screw what is fix with base part and drain pan. (upper side:2EA)

10) Loosen the screw what is fix with base

part and drain pan. (lower side:2EA)

11) Detach the drain pan completely.

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Disassembly and Reassembly

No Parts Procedure Remark

4 Evaporator

1) Disconnect the thermistor wire as

shown in picture. (white housing)

2) Loosen the 2 screws shown in picture.

3) Loosen the 2 screws shown in picture

and remove plastic part. (white)

4) Loosen the 2 screws shown in picture

and remove steel bracket.

5) Disassemble the 4 screws steel plate in

rear side of the unit.

11Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

6) Loosen the 2 screws as shown in picture.

7) Detach the plastic cover as shown in

picture.

8) Detach the evaporator assembly.

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Disassembly and Reassembly

No Parts Procedure Remark

Stepping Motor

1) Loosen the 4 screws in rear side of front

cover assembly as shown in picture.

2) Loosen the 2 screws as shown in picture.

3) Disassemble the blade and stepping

motor assembly and remove the 2 screws stepping motor.

Display PCB

1) Loosen the 3 screws in rear side of front

cover assembly as shown in picture.

2) Disassemble display PCB assembly

and disconnect wire.

3) Disassemble the display PCB.

13Samsung Electronics

2-2 Outdoor Unit

No Parts Procedure Remark

Cabinet

Fan Motor

Propeller Fan

1) Turn off the unit and remove the power

cable.

2) Detach the top cover.

3) Detach the control box cover.

4) Unplug the ass'y cable.

5) Detach the cabi-side.

6) Detach the cabi-front.

● Cautions

When you assemble the parts, check if the each parts and component electric box are fixed firmly.

1) Loosen the indicating bolt screw.

2) Disassemble the propeller fan.

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3. Refrigerating Cycle Diagram

Indoor Unit Outdoor Unit

❋

Allowable pipe length : Max. 30m

❋

Allowable drop distance : Max. 15m

2-way valve

Capillary tube

Heat

exchanger

(Evaporator)

Cooling Heating Gas leak check point

Liquid pipe

Gas pipe

3-way valve

Filter Filter

Expansion

valve

Accumulator Muffler

Compressor

Heat exchanger (Condensor)

4-way valve

15Samsung Electronics

4. Set Up the Model Option

4-1 Setting Option Setup Method

Option No. :

Step 1 : Enter the Option Setup mode.

Take out the batteries of remote control.

Press the temperature button simultaneously and insert the battery again.

Make sure the remocon display shown as .

Step 2 : Enter the Option Setup mode and select your option according to the following procedure.

The default value is . Otherwise, push the button to . Every time you push the button, the display panel reads or repeatedly.

2 3