Samsung DH070EZM User manual

INDOOR UNIT

DH070EZM OUTDOOR UNIT

UH070EZMC

SERVICE Manual

CONTENTSAIR CONDITIONER

1. Product Specifications

2. Installation

3. Disassembly and Reassembly

4. Refrigerating Cycle Diagram

5. Troubleshooting

6. Exploded Views and Parts List

7. PCB Diagram

8. Wiring Diagram

9. Schematic Diagram

DUCT TYPE AIR CONDITIONER

DB98_15108A(1)_CO 10/15/03 3:04 PM Page 3

1Samsung Electronics

1. Product Specifications

1-1 Table

Btu/hr

Watts

Btu/hr

Watts

r.p.m

m3/min

dB(A)

Watts

r.p.m

dB(A)

23,900

7,000

26,300

7,700

200

1.0

1,050

950

900

850

19.5

17.5

16.5

15.5

D-fin coil

2 x 10 x 1.7(1,100mm)

Sirocco

260

1,340

600

41 / 47

2,250

11.2

820

400

Propeller Fan

Rotary

SHV33YC6-G

2.22

Internal

wave fin coil

2 x 24 x 1.5(900mm)

0.55

EEV

R-22

2.1

1ø, 220-240V~, 50Hz

Sound Pressure Level

MODEL DH070EZM

UH070EZMC

INDOOR UNIT

OUTDOOR UNIT

Capacity

Power Supply

Power Input

Running Current

Fan Speed

Air Circulation

Noise Level

(Sound Pressure)

Heat Exchanger

Fan

Dimension

Weight

Power Input

Running Current

Fan Speed

Fan

Compressor

Heat Exchanger

Refrigerant

Cooling

Heating

Cooling

Heating

Cooling

Heating

H.H

Mid

Low

U-High

High

Mid

Low

High

Mid

Low

Motor Output

Net / Gross

Cooling

Heating

Cooling

Heating

High

Low

Motor Output

Capacity

Face Area

Charge

Type

Row x Stages x Fin Pitch

Type

Model

Protection

Type

Row x Stages x Fin Pitch

Control

Type

Outdoor Unit

Indoor Unit

DB98_15108A(1)_1 10/15/03 3:06 PM Page 1

Samsung Electronics2

Table(cont.)

˚C

mm(inch)

638

880

310

67 / 72

27 / 19

20 / 15

35 / 24

7 / 6

9.52(3/8")

15.88(5/8")

Flare

Max. 15

Max. 30

MODEL DH070EZM

UH070EZMC

INDOOR UNIT

OUTDOOR UNIT

Dimension

Weight

Indoor Unit

Outdoor Unit

Pipe O.D. Size

Between

Net / Gross

Cool(DB/WB)

Heat(DB/WB)

Cool(DB/WB)

Heat(DB/WB)

Liquid

Gas

Height

Pipe Length

Connection Method

Outdoor Unit

Condition

Piping

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

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

DB98_15108A(1)_1 10/15/03 3:06 PM Page 2

3Samsung Electronics

(Unit : mm)

1-2 Dimensions

1-2-1 Indoor Unit

DB98_15108A(1)_1 10/15/03 3:06 PM Page 3

Product Specifications

Samsung Electronics4

1-2-2 Outdoor Unit

(Unit : mm)

310

638

660

880

(Front View) (Rear View)

DB98_15108A(1)_1 10/15/03 3:06 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_15108A(1)_1 10/15/03 3:06 PM Page 5

Samsung Electronics6

2-2 Additional Functions

■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.

■Hot water heater

■

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

K6 1000 hours 2000 hours

Switch No. Switch ON Switch OFF

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

Switch No. Switch ON Switch OFF

SW04

K5 K6 K7 K8

SW04

K5 K6 K7 K8

SW04

K5 K6 K7 K8

K5 2°C compensation 5°C compensation

Switch No. Switch ON Switch OFF

DB98_15108A(1)_1 10/15/03 3:06 PM Page 6

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_15108A(1)_1 10/15/03 3:06 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_15108A(1)_1 10/15/03 3:06 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, separate Ass'y cover bottom.

DB98_15108A(1)_1 10/15/03 3:06 PM Page 9

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