Samsung DH052EAM User manual

INDOOR UNIT

DH052EAM

DH070EAM

OUTDOOR UNIT

UH052EAMT

UH070EAMT

SERVICE Manual

CONTENTSAIR CONDITIONER

11. Product Specifications

12. Installation

13. Disassembly and Reassembly

14. Refrigerating Cycle Diagram

15. Set Up the Model Option

16. Troubleshooting

17. Exploded Views and Parts List

18. PCB Diagram

19. Wiring Diagram

10. Schematic Diagram

DUCT TYPE AIR CONDITIONER

DB98_16009A(1)_CO 12/17/03 4:29 PM Page 3

1Samsung Electronics

1. Product Specifications

1-1 Table

BTU/hr

Watts

BTU/hr

Watts

r.p.m

m3/min

dB(A)

r.p.m

dB(A)

18,700

5,500

20,400

6,000

1ø, 220~240V~, 50Hz

1,800

1,900

8.0

8.4

800

730

680

630

Slit-fin coil

2 x 12 x 1.5(1,100mm)

Sirocco

260

1,340

600

41 / 47

750

400

Propeller Fan

Rotary

NN21VBAMT

1.3

Internal

Slit-fin coil

2 x 28 x 1.5

EEV

R410A

1,550

23,900

7,000

26,300

7,700

1ø, 220~240V~, 50Hz

2,450

2,650

11.0

11.9

940

810

760

710

Slit-fin coil

2 x 12 x 1.5(1,100mm)

Sirocco

260

1,340

600

41 / 47

850

340

Propeller Fan

Rotary

NN29VACMT

1.9

Internal

Slit-fin coil

2 x 28 x 1.5

EEV

R410A

1,650

MODEL DH052EAM DH070EAM

UH052EAMT UH070EAMT

INDOOR UNIT

OUTDOOR UNIT

Capacity

Power Supply

Power Input

Running Current

Fan Speed

Air Circulation

Heat Exchanger

Fan

Dimension

Weight

Fan Speed

Fan

Compressor

Heat Exchanger

Refrigerant

Cooling

Heating

Cooling

Heating

Cooling

Heating

U-High

High

Mid

Low

U-High

High

Mid

Low

High

Mid

Low

Motor Output

Net / Gross

High

Low

Motor Output

Charge

Type

Row x Stages x Fin Pitch

Type

Model

Protection

Type

Row x Stages x Fin Pitch

Control

Type

Outdoor Unit

Indoor Unit

Sound Pressure Level

Noise Level

(Sound Pressure)

DB98_16009A(1)_1 12/17/03 4:21 PM Page 1

Samsung Electronics2

Table(cont.)

Notice : This model is tested under the external static pressure of 4mmAq.

Notice :Air Flow rate : Fan Step Control : Low → Mid → High → Ultra High

˚C

mm(inch)

648

880

310

67 / 72

27 / 19

20 / 15

35 / 24

7 / 6

6.35(1/4")

12.7(1/2")

Flare

Max. 15

Max. 30

648

880

310

69 / 74

27 / 19

20 / 15

35 / 24

7 / 6

6.35(1/4")

15.88(5/8")

Flare

Max. 15

Max. 30

MODEL DH052EAM DH070EAM

UH052EAMT UH070EAMT

INDOOR UNIT

OUTDOOR UNIT

Net / Gross

Cool(DB/WB)

Heat(DB/WB)

Cool(DB/WB)

Heat(DB/WB)

Liquid

Gas

Height

Pipe Length

Outdoor Unit

Condition

Piping

Dimension

Weight

Indoor Unit

Outdoor Unit

Pipe O.D. Size

Connection Method

Between

DB98_16009A(1)_1 12/17/03 4:21 PM Page 2

3Samsung Electronics

(Unit : mm)

1-2 Dimensions

1-2-1 Indoor Unit

DB98_16009A(1)_1 12/17/03 4:21 PM Page 3

Product Specifications

Samsung Electronics4

1-2-2 Outdoor Unit

(Unit : mm)

880

660

648

310

DB98_16009A(1)_1 12/17/03 4:21 PM Page 4

5Samsung Electronics

1. Before installing the indoor unit, assign an address to the indoor unit according to the air conditioning system plan.

2. The address of the indoor unit is assigned by adjusting MAIN(SW02) and RMC(SW01) rotary switches.

3. The MAIN address is for communication between the indoor unit and the outdoor unit.

Therefore, you must set it to operate the air conditioner properly.

4. It is required to set the RMC address if you install the wired remote controller and/or the centralized controller.

5. If you install optional accessories such as the wired remote controller, centralized controller, etc. see an appropriate

installation manual.

6. If an optional accessory is not installed, you do not have to set the RMC address. However, adjust K1 and K2 switches of

the SW03 DIP switch to "ON" position in this case.

7. Set the MAIN address by adjusting the rotary switch(SW02) from 0 to F. Each indoor unit connected to the same outdoor

unit must have different address.

7. i. e. If an indoor unit does not have an optional accessory and its

MAIN address is "4".

K1 K2 K3 K4

K5 K6 K7 K8

K10

K11

K12

SW02 MAIN SW01 RMC

SW03

SW04

SW05

K1 K2 K3 K4

K5 K6 K7 K8

K10

K11

K12

SW02 MAIN

SW03

SW04

SW05

SW01 RMC

2. Installation

2-1 Assigning Address to Indoor Unit

DB98_16009A(1)_1 12/17/03 4:21 PM Page 5

Compensation for lost temperature in heating operation

◆Reduces the difference between an actual room temperature and a sensed

temperature by the air conditioner when heating.

Adjusting filter cleaning cycle

◆You can adjust the cycle for filter sign indicator.

K5 2°C compensation 5°C compensation

Switch No. Switch ON Switch OFF

K6 1000 hours 2000 hours

Switch No. Switch ON Switch OFF

Hot water heater

◆You must adjust the K7 when you install the hot water heater.

K7 No use of hot water heater Use of hot water heater

Switch No. Switch ON Switch OFF

2-2 Additional functions

SW04

K5 K6 K7 K8

SW04

K5 K6 K7 K8

SW04

K5 K6 K7 K8

External Control

◆You must adjust the K11 when you use external control.

K11 No use of external control Use of external control

Switch No. Switch ON Switch OFF

SW05

K10 K11K12

7Samsung Electronics

■Rotary Switch

■

You should display that how many indoor units are connected to the

outdoor unit. Refer to the table below, then turn the arrow to appropriate

position.

■Option Switch

0 or 1

One

Two

Three

Four

Five

Six

Seven

Eight

Nine

Ten

Eleven

Twelve

Thirteen

Fourteen

Fifteen

Switch No. Number of

indoor unit(s) Switch No. Number of

indoor unit(s)

RESETCHECK MODE DISPLAY

MODE

K1 K2 K3 K4

DIS 1

SEG 1 SEG 2 SEG 3 SEG 4

DIS 2

■KEY ■Display

2-3 Setting Up Option Switches

Rotary Switch

Key

Display

DB98_16009A(1)_1 12/17/03 4:21 PM Page 7

Installation

Samsung Electronics8

Adding refrigerant for heat pump models

Test operation for heat pump models

End

Adding refrigerant for cooling only models

Test operation for cooling only models

Pump Down for recovery of refrigerant

End

Reset

Discharge temperature of compressor

Temperature of outdoor heat exchanger

Outdoor temperature

Step of electronic expansion valve

(0 step : all closed, 480 step : all open)

Temperature of evaporator

Indoor temperature

Stopping view mode & display communication data

110 °C

38 °C

34 °C

120STEP

(12 x 10)

-2 °C

12 °C

22 °C

KEY Number of

press Item Example

Display Meaning

Function

Number

of press times

✳ Use the K1 only for heat pump models.

(Displayed on SEG 3, 4)

Adding refrigerant at

heating mode

Test operation at

heating mode

End

(Displayed on SEG 3, 4)

Adding refrigerant at

cooling mode

Test operation at

cooling mode

Pump Down for recovery

of refrigerant

End

(Displayed on SEG 3, 4)

Reset

(Displayed on SEG 3, 4)

Displays data

■Summary of KEY functions

■Reading data indicated on the display

DB98_16009A(1)_1 12/17/03 4:21 PM Page 8

9Samsung Electronics

3. Disassembly and Reassembly

3-1 Indoor Unit

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

No Parts Procedure Remark

Filter-Pre

Blower & Duct

1) Disassemble 2 screws of indication part

and then assemble the direction of

2 Plate-Handle places by use of screw

as shown in 2).

2) Turn the Plate Handle by hand when

removing the Filter-Pre.

3) When pulling the Filter-Pre handle,

the Filter-Pre can be assembled.

✳Be sure to remove the cushion on the

marked part after initial installation.

(It cause the damage of noise).

1) After disassembling 9 places indicating

screws, detach Ass'y Cover Bottom.

DB98_16009A(1)_1 12/17/03 4:21 PM Page 9

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