Daewoo DOB-092RH User manual

Service Manual

Split System

Air Conditioner

Model: DOB-092RH

DOB-122RH

S/M No. : R1A1G0A004

MAR., 2006

✔Caution

: In this Manual, some parts can be changed for improving,

their performance without notice in the parts list. So, if you

need the latest parts information, please refer to PPL(Parts

Price List) in Service Information Center (http://svc.dwe.co.kr).

CONTENTS

Service and Maintenance................................................................1

Trouble Shooting.............................................................................2

Trouble Display................................................................................2

Control Specifications......................................................................3

Explode View and Pats List.............................................................4

Disassembly and Reassembly ........................................................6

Wiring Diagram................................................................................7

4. Wipe thefilter with asoft cloth soakedin water and dry it up in the shade.

1. Do notuse gasoline, thinner or other chemicalsto clean the unit. Asthese substances

may cause damageto the finish and deformation ofplastic parts.

2. Do notwash the unit directly under atap or using a hose.

3. If thepower cord is damaged, it shouldbe repaired by manufacturer or itsagency.

Before cleaning or servicing this unit, be sure to

disconnect the unit from any electrical supply outlet.

Cleaning the Air Filter

If the air filter becomes clogged with dust/dirt, the air filter should be cleaned once every

two weeks.

1. Press I/O to turn off the air conditioner and pull out the plug from the wall socket.

2. Open the air inlet grille and take off the air filter.

3. Dust/Dirt clogged in the filter can be removed by vacuum cleaner. If filter is very dirty, wash it in

lukewarm soapy water while rubbing it gently with a brush. A mild detergent is recommended.

5. Replace theair filter asit was.

SERVICE AND MAINTENANCE

4.Reinstall filter.

Before a long idle period

1. Remove the drain plug and drain water completely.

2. Set the fan going for a few hours to dry out the inside completely.

3. Switch the air conditioner off and unplug it from the wall socket. Clean the filter and outer surface.

5.Takeout batteries from remote controller andstore with air conditioner in aclean, dry area.

6. Remove air exhaust hose and store with air conditioner in a clean, dry area.

-Water full indicator lamp

blinks, water tank is full. Dump the water out of the water

tank.

-Room temperature is higher

than the setting temperature.

(Electric heating mode)

Reset the temperature.

-The windows or doors in the

room are not closed.

-There are heat sources

inside the room.

-Exhaust air hose is not

connected or blocked.

-Temperaturesetting is too

high.

-Air filter is blocked by dust.

Make sure all the windows and

doors are closed.

Remove the heat sources if

possible.

Connect the duct and make sure

It can function properly.

Decrease the setting temperature.

Clean the air filter.

Air conditioner may have

absorbed odours from wall,

carpet, furniture and again

blows out

Remove the objects with odour

smell if possible.

-The ground is not level or

not flat enough.

Place the unit on a flat,level

ground if possible.

It is normal.

1. UNIT DOES NOT

START WHEN

PRESSING I/O

BUTTON.

2. NOT COOL

ENOUGH

3. THE UNIT

GIVES OUT

ODOUR

4.NOISY OR

VIBRATION

5.GURGLING

SOUND

TROUBLES POSSIBLE CAUSES SUGGEST REMEDIES

6. WATER DRIPS

FROM CABINET

INTO YOUR HOUSE

-The drain plug is not installed

properly. Install the drain plug properly.

TROUBLE SHOOTING

F7 : indicates open circuit or short circuit in room temperature sensor.

F8 : indicates open circuit or short circuit in pipe temperature sensor.

F1 : indicates the anti-ice protection.

WATER FULL indicator lamp illuminating: indicates the water full inside.

TROUBLE DISPLAY

-Room temperature is lower

than the setting temperature.

(Cooling mode)

Reset the temperature.

-The sound comes from the

flowing of the refrigerant inside

the air conditioner.

ABBREVIATION

Ts:Setting Temperature Tr: Room Temperature Td: Defrost sensortemperature

OPERATION OF MAIN BOARD

COOL MODE

If Tr> Ts, cool operationis activated. Compressor is turned onand the fan runs at the

setting speed.

If Tr Ts-1 cool operationis terminated. Compressor and fan areturned off.

The range ofTs is 16-31

Fan speed canbe adjusted for low, medium,high and auto. Compressor will be delayed

by 3 minutesbefore its operation/termination.

ANTI-ICING OPERATION

This process ischecked by the defrost sensor.

If Td (defrostsensor temperature) =2 ,the fan runsat a high speed.

If Td 8 for 5minutes continuously, compressor resumesto normal operation.

If Td -1 for 1minute continuously, compressor isturned off andthe fan keeps running

at a highspeed.

CONTROL SPECIFICATIONS

At Electrical Heat mode, the compressor does not operate; If Tr<Ts, electrical heat

operation is activated after 8 seconds running of fan. If Tr>Ts, electrical heat

operation is terminated and the fan keeps the condition of anti-coldness.

While shutting off in Electrical Heat mode, the fan will be delayed 18 seconds to stop.

While shutting off in COOL mode and DRY mode with the operation of compressor,

the fan will be delayed 18 seconds to stop.

ELECTRICAL HEAT MODE

AUTO CHANGEOVER MODE(Only for remote controller operation)

If Tr>25 , cool operation is activated and Ts=24C

If 23 <Tr 25 , dry operation is activated and Ts=Tr-2

C C

For electrical heat pump type,If Tr<23 , electrical heat operation is activatedand Ts=26

For cool only type, If Tr<23 , fan operation is activated and Ts=24

DRY MODE

If Tr 15 , dryoperation is activated.Compressor and fanstart alternately.

If Tr 23 , compressorand fan are operating in sequenceas follows:

See Aof fig1 If Tr<23 ,compressor and fan are operating in sequence

as follows: seeB of Fig.1.

Tr 23 Tr 23<

C C

FAN 8mins 3mins 4mins

1min

2mins 3mins

8mins

1min

2mins 4mins

1min 1min

COMPRESSOR

Fig.1

EXPLODE VIEW AND PARTS LIST

Name

Quantity

Number

Quantity

Number

Name

Front panel

Electrical control assembly

Air outlet hole

Left cover cap

Supporting panel for left/right cover

Three-dimensional swing assembly

Electric heater assembly

(only applied to electric heat types)

Helicoid upper cover

Control board cover

Control board

Upper cover cap

Transparent film

Small top over cap

Back cover lock

Air inlet fan

Protective abatis

Helicoid bottom cover

Back cover cap

Evaporator

Air inlet grille

Air filter mesh

Air outlet assembly

Temperature control clip(1)

Temperature control clip(2)

Small panel of back cover

Protective net

Fixing clip of buzzer

Stepping motor

Helicoid air inlet upper cover

Rubber plug

Fixing clip

Air outlet fan

Helicoid air inlet bottom cover

Condenser

Right cover panel

Foam for left/right cover

Supporting bar

Chassis assembly

Compressor

Water tank assembly

Water tank inlet hose

EXPLODE VIEW AND PARTS LIST

Back cover panel

Water pump drain hose

Drain hose interface assembly

Drain hose stator

Compressor shock absorption

rubber mat

Universal wheel

Outside drain hose

Motor

DISASSEMBLY AND REASSEMBLY

Stop operation of the conditioner and remove the power cord before

repairing the unit.

6. Loosen the screw of the electric

control board and take out the

electric control board.

1. Switch off the air conditioner

and remove the power plug.

2. Remove the fixing screw of

the left and right cover panel.

3. Pull out the left and right cover

panel.

4. Remove the fixing screw of

the front panel and back cover

panel.

5. Pull out the front panel and

then take out the electric box

cover panel.

WIRING DIAGRAM

KYW-02

RY-Y

ROOM THERMISTOR

PIPE THERMISTOR

RY-Y

DOB-122RH DOB-092RH

DAEWOO ELECTRONICS CORP.

686, AHYEON-DONG MAPO-GU SEOUL, KOREA

C.P.O. BOX 8003 SEOUL, KOREA

TELEX: DWELEC K28177-8

CABLE: “DAEWOOELEC”

PRINTED DATE: Mar. 2006

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