Daewoo WM-501 User Manual

1

Please observe the following instructions.

1. Operate the Selector Switch to run or stop the unit.

- Do not use Main Power Switch or Auxiliary Power Switch to operate unit.

2. Do not stick anything into the air outlet or inlet.

- It is dangerous and it can cause injury or damage.

3. Avoid exposing your body directly to a continuous cool air - flow for long periods.

- It is not good for your health.

4. Do not pour water on the unit to clean it.

- It is dangerous and it can cause injury or damage.
Never use solvents or harsh chemicals when cleaning the unit.
When the air inlet grill and cabinet are dirty, wipe with luke - warm water (below 104°F or 40°C)

5. Avoid placing any obstacles near the inlet or outlet.

- If the inlet or outlet is blocked with any obstacle, it may cause damage to the unit.

6. Do not run or stop the unit frequently.

- If you run or stop the unit more then 4-5 times an hour, it can cause damage to the unit.

7. Wait at least 3 minutes before restarting the unit or in the case of power failure.

- If you turn on the unit within 3 minutes after power off, this can cause damage to the unit.

8. If the air conditioner is operated without an air filter, dust is not removed from the air, and resultant
accumulation in the unit may lead to a failure.

- Do not forget to install the air filter.

9. The air filter should be cleaned at least once every two weeks.

10. When the unit is cleaned, set the Selector Switch at off position.

- And then unplug the power plug.

11. Never store gasoline or other flammable liquid near the air conditioner.

- It is very dangerous.

12. Do not force the controls on the front panel too much.

- It can cause damage the controls and the unit.

13. Set a comfortable temperature.

- Very low temperature setting considerably increase power consumption.

14. Be careful to keep room temperature comfortable.

- Avoid continuous direct air flow on you or a sick person while sleeping.

15. Do not remove the plug by pulling the power cord.

- Damage to the cord and may cause shock hazard.

PRECAUTIONS FOR PROPER USE OF AIR CONDITIONER

2

GENERAL SPECIFICATIONS

ITEM

MODEL

POWER SOURCE

DIMENSIONS

WEIGHT

WM-501

55 Ibs (25 Kg)-Approx.

AC 115V, 60Hz, SINGLE PHASE

18.5(W) x 14(H) x 18.9(D) inch
470(W) x 358(H) x 480(D) mm

1. GENERAL SPECIFICATIONS...............................................................................2

2. INSTALLATION INSTRUCTIONS.......................................................................3~7

• WINDOW REQUIREMENTS

• BASIC TOOLS NEEDED

• SAFETY INSTRUCTIONS

• STEP1-PREPARE COMPONENTS FOR INSTALLATION

• STEP2-PREPARE WINDOW FOR INSTALLATION

• STEP3-PLACING UNIT IN WINDOW

• STEP4- INSTALL SASH BRACKET

• STEP5-SECURE WINDOW SHUTTER

• STEP6-RECHECK INSTALLATION

3. NAMES OF MAJOR COMPONENTS .....................................................................8

4. OPERATION INSTRUCTIONS..............................................................................9

• FAN & COOLING CONTROL

• TEMPERATURE CONTROL

5. GENERAL INFORMATION................................................................................. 10

• CHANGING AIR FLOW DIRECTION

• AIR FLOW AROUND UNIT

• DRAIN HOLE AND WATER DRIPPING OUTSIDE

6. CARE AND MAINTENANCE ..............................................................................11

• AIR FILTER

• CLEANING THE AIR CONDITIONER

7. ELECTRICAL REQUIREMENTS ......................................................................... 12

• ELECTRICAL GROUNDING INSTRUCTIONS.

• USE OF EXTENSION CORDS

8. BEFORE CALLING FOR SERVICE......................................................................13

TABLE OF CONTENTS

3

INSTALLATION INSTRUCTIONS

• WINDOW REQ UIREMENTS

These instructions are provided for a standard double hung
window or mobile home double hung window installation in
windows 22 in (559mm) to 36 in (915mm). The upper and lower
sash must open sufficiently to allow a clear vertical opening of
141/2 in (368mm) from the bottom of the sash to the window stool.
Select a centrally located window on the side of the room that
receives the least direct sunlight. There should be no obstruction to
air flow either inside(i.e curtains) or outside (i.e fence, wall or
bushes).
Read this entire installation manual thoroughly before beginning
the installation.
Make sure you have the necessary tools and other materials for the job. Study the illustrations in these
instructions to become familiar with important details of the installation process.
Read the Use & Care manual to become familiar with the operation of your room air conditioner.

After installing the unit, re-read these instructions to make sure you have completed each step and all parts are
fastened in place for a secure installation.
For best results, perform the installation procedure in the order given. Doing so will minimize the time required
to install the unit.

• BASIC T OOLS NEEDED

IMPORTANT :

It is important, both for your personal safety and to avoid possible damage to your
home, that you observe the safety instructions that are given following.

• Standard screwdriver

• Carpenter’s level

• Electric drill

• Phillips screwdriver

• 1/4” hex driver

• 1/8” drill bit

• Sharp knife

• Tape measure

22" TO 36"

14 1/2" MIN

4

• SAFETY INSTRUCTIONS

The receptacle should be an individual branch circuit used only for this air conditioner. Be sure the electrical
service is adequate for the model air conditioner you have chosen. The complete electrical rating of your air
conditioner is stated on the name plate located at the unit’s side. Be sure the plug receptacle is close enough
for the power cord to reach it.

Your air conditioner must be plugged into a properly grounded and polarzied three prong receptacle. Do not
use an adapter plug. If the wall receptacle you intend to use will not accept a three-prong plug, or if you are not
sure the outlet is adequately grounded or protected by a fuse or circuit breaker, have a qualified electrician
install the proper oulet according to the National Electric Code and applicable local code.

W ARNING :

An extension cord must not be used with your air conditioner!
To minimize shock and fire hazards, proper grounding is important. For your safety and
protection,this air conditioner is equipped with a special three-prong grounding plug on the service cord.

WARNING :

Do not, under any circumstances, cut or remove the grounding prong on the plug. To do so will create a
shock hazard.

5

• Step 1 - Prepare Components For Installation

Components for installation as follows.

• Sill Bracket (2 pieces)

• Window Shutter (2 pieces)

• Sash Bracket (3 pieces)

• Window Kit Frame - Left side (1 piece)

• Window Kit Frame - Right side (1 piece)

• Leveling Screw - M8 x 45 (2 pieces)

• 1 inch Screw - M5 x 30 (4 pieces)

• 5/8 inch Screw - M4 x 16 (7 pieces)

• 3/8 inch Screw - M4 x 10 (6 pieces)

• Window Seal A, B (2 pieces)

• Step 2 - Prepare Window For Installation

1. Inspect window track, sash and sill to be sure they are strong enough to hold an air conditioner.

2. Measure width between window frame to be sure instant mount will fit in the window. Instant mount models
are designed for windows 22 in (559mm) to 36 in (915mm) wide.

3. Mark the center of window sill with a pencil.

4. Insert Screws (Type A) into the sill bracket.

5. Attach Sill bracket to window sill using Screws (Type B).
(The outside edge of window bracket should be 5.9 in (150mm) from center line)

6. Place the carpenter’s level on the sill and the outdoor end of Sill Bracket.
Turn Screw (Type A) until the level’s bubble is centered.

W ARNING :

1.To reduce the risk of electric shock, personal injury or death, turn the fan control to the OFF position
and unplug the unit from the wall outlet before installing or removing this unit.

2.The window where the air conditioner is to be installed should have enough strength to bear the
weight of the air conditioner.

SHAPE

SPEC

Q'TY

Type A

M8 x 45

2

Type B

M5 x 30

4

Type C

M4 x 16

7

Type D

M4 x 10

6

• SCREW TYPE

Window

Shutter

(2 pieces)

Window Seal A (1 piece)

Window Seal B (1 piece)

Sill Bracket (2 pieces)

Window kit Frame
Left side (1 piece)

Window kit Frame

Right side (1 piece)

Sash Bracket

(3 pieces)

INNER WINDOW SILL

Screw (Type B)

OUTER
WINDOW
SILL

150mm

(5.9in)

SILL
BRACKET

CENTER
LINE

INNER
WINDOW
SILL

WALL

OUTER
WINDOW
SILL

SILL
BRACKET

Screw (T ype A)

38

SASH
BRACKET

70

140

90

145

(130)

55

(135 MAX)

SILL
BRACKET

UNIT

• Step 3 - Placing Unit in Window

1. Attach Sash Bracket in the left side and right side of the unit.
(Screws are ready provided in the each side as part of the Air-Conditioner for this purpose. So, at first,
please remove this screws, and re-attach Sash Bracket to the same portion with Screws (Type C) of
components for installation.)

2. Insert Window Kit Frame into the upper and bottom guides of the unit.

3. Fasten window shutter in the window kit frame with Screws (Type D) in the left side and right side of the unit.

4. Open the window and place the unit in the center of the window sill. The attached sash bracket in the unit’s
side have sharp edges. To avoid injury or accident. it is needed that you have careful when lifting the unit.

• Step 4 - Install Sash Bracket

1. Fasten Sash Bracket be attached in the unit’s side with Screw
(type C) on the window sill.(It is the same to install Sash Bracket
left side and right side.)

2. Fasten Sash Bracket with Screw (Type C) to top of indoor
window sash or directly into side of window sash or directly into
side of window frame.
This will prevent the raising of the window from the outside. If
you have a hard wood or metal window frame, a 1/8 inch pilot
hole may be needed in order to drive the screw.

6

CAUTION

1. The unit is heavy. To avoid injury or accident, it is strongly recommended that you have additional
help when lifting the unit.

2. Personal injury or property damage may result if unit falls from window.

CAUTION

Do not drill into window frame until window has been inspected to make sure drilling or screw will
not damage any locking or lifting mechanism located the frame.

(1) Remove the attached

screw Cabinet

(2) Insert Sash Bracket

between Cabinet and
Base Pan

SASH
BRACKET

Screw (Type C)

WINDOW
SHUTTER

(bottom guides)

WINDOW
KIT
FRAME

PLATE
WINDOW
TOP
(upper guides)

Screw
(T ype D)

(3) Attach Sash Bracket with

the screw of (1) and the
screw of components of
installation

Screw (Type C)

WINDOW
SASH

SASH
BRACKET

WINDOW
FRAME

Screw (Type C)

7

• Step 5 - Secure Window Shutter

To provide a proper seal, pull each expandable side Window Shutter out and up until it is tight against the
window frame. Using the hole in the top and bottom of each Window Kit Frame as a guide, secure Window Kit
Frame in window sash and on the window sill.

• Step 6 - Recheck Installation

To be sure you have correctly installed your Room Air Conditioner, review the steps and make sure all of the
parts are securely fastened in the window as the instructions show. A tight seal is essential.
Read through the Use & Care manual to become familiar with the operation of your room air conditioner.

CAUTION

Do not drill into window sash until window has been inspected to make sure drilling or
screw will not damage any locking or lifting mechanism located in the frame.

CAUTION

Do not lift window sash without holding the unit. The window sash helps keep the unit in the window.
Exercise caution when opening the window. Failure to do so many result in personal injury and/or
property damage.

WINDOW
KIT FRAME

Screw (Type C)

WINDOW
SASH

WINDOW
FRAME

WINDOW
SHUTTER

Screw (Type C)

INNER WINDOW SILL

8

NO PART NAME

1 CABINET
2 BLADE VERTICAL
3 COOL AIR DISCHARGE
4 GRILL FRONT
5 KNOB SELECTOR
6 KNOB THERMOSTAT

NO PART NAME

7 AIR INTAKE
8 AIR FILTER

9 CONTROL PANEL
10 PLATE WINDOW TOP
11 FRAME WINDOW KIT
12 SHUTTER WINDOW

NAMES OF MAJOR COMPONENTS

2
3

8
5

6

1

4

7

0

q

w

9

• WM-501

9

• FAN & COOLING CONTROL

The Fan Control Selector Switch has five positions.
Choose one of the speed settings by rotating the fan control Selector Switch to the appropriate position.

OFF Select this setting for stop all operation of air conditioner
HIGH FAN

Select this setting for maximum air circulation without cooling.

LOW FAN Select this setting for quiet air circulation without cooling.
HIGH COOL Select this setting for cooling operation with HIGH FAN.
LOW COOL Select this setting for cooling operation with LOW FAN.

• TEMPERATURE CONTROL

Choose a temperature settings by rotating the knob of thermostat to the appropriate position

• The Thermostat automatically starts and stops cooling operation in
order to keep the room temperature at a proper level, and this results in
efficient use of power and economical cooling.

• Turn clockwise for a cooler room temperature.

• Turn counter-clockwise for a warmer room temperature.

OPERATING INSTRUCTIONS

NOTE

• FOR MOST ECONOMICAL USE

1. Properly control the room temperature.

2. Avoid the unit being exposed to direct sunlight. Keep direct sunlight from the room.

3. Do not leave doors and windows open.

NOTE

Setting the control at the coldest extreme of the temperature range will not cool the room any
faster. Usually the midpoint is a good starting position. If the room temperature is not satisfactory
after a reasonable period of time, adjust the temperature control to a lower or higher.

CAUTION

When the air conditioner has been performing its cooling operation and is turned “OFF” or set to the
‘FAN” position, wait at least 3 minutes before resetting to the cooling operation.

SELECTOR

LOW
FAN

OFF

LOW

COOL

HIGH

FAN

HIGH

COOL

THERMOSTAT

COOLER

10

• CHANGING AIR FLOW DIRECTION

Air flow deflectors divert air from center flow to left or right.
Adjust deflectors for desired air flow pattern.

• AIR FLOW AROUND UNIT

Check in door grill and outdoor louvers for air flow obstructions. Do not block air flow to and from unit. The
outdoor coil should be checked and periodically cleaned for debris that may collect and block unit air flow.
If air flow is obstructed or deflected back into unit, the compressor may cycle on and off rapidly, causing
early compressor failure.

• DRAIN HOLE AND WATER DRIPPING OUTSIDE

Locate drain hole at the rear or on the bottom of unit. Water in base pan is picked up by the fan blade and
thrown onto the warm outdoor coil where it evaporates. The air conditioner must be installed level or tilted
slightly to the outside for proper water disposal. On exceptionally hot and humid days the air conditioner
may permit excess water to pass thru rear drain hole or overflow. This should be considered normal.

GENERAL INFORMATION

11

• AIR FILTER

Clean the air filter, which removes dust inside the room.
It should be washed at least once every week during operation.

1. Remove the Aire Filter from the front grill by pulling up.

2. Clean Air Filter with a vacuum cleaner or lukewarm, soapy water.

3. Shake it when clean to remove moisture completely. Replace it.

• CLEANING THE AIR CONDITIONER

1. At least once a year, remove cabinet and thoroughly clean air
conditioner. Have the unit inspected by an authorized service
man to ensure unit is functioning properly.

2. Wash air conditioner with lukewarm, soapy water as needed.
Rinse and dry thoroghly.

3. If using concentrated liquid detergent, dilute in warm water first.

4. Front grill may be wiped off with a cloth dampened in a mild
detergent solution.

5. Cabinet may be washed with mild soap or detergent and
lukewarm water, then polished with liquid wax for appliances.

6. Condenser and Evaporator coils should be cleaned at the
beginning of each cooling season. Use a soft brush or vacuum
cleaner to clean them, making sure that the Condenser and Evaporator coils are not damaged.

7. Do not use abrasive cleaners. These items scrach, crack and discolor surfaces.

CARE AND MAINTENANCE

CAUTION

To avoid death or personal injury due to electrical shock, turn fan control OFF and unplug power cord
before cleaning or performing maintenance. After cleaning or performing maintenance, reconnect power.

NOTE

A dirty Air Filter reduces air flow and the cooling capacity.
Do not operate unit without Air Filter.

NOTE

To assure continued peak efficiency, condenser coils (weather side of unit) should be checked
periodically and cleaned if clogged with soot or dirt from the atmosphere.

SELECTOR

OFF

LOW

LOW

COOL

FAN

HIGH

HIGH

COOL

FAN

THERMOSTAT

COOLER

SELECTOR

OFF

LOW

LOW

COOL

FAN

HIGH

HIGH

COOL

FAN

THERMOSTAT

COOLER

12

• ELECTRICAL GROUNDING INSTRUCTIONS

This appliance is equipped with a three-prong(grounding) plug for protection against possible shock hazards. If
a two-prong wall receptacle is encountered, the customer is required to contact a qualified electrician and have
the two-prong wall receptacle replaced with a properly grounded three-prong wall receptacle in accordance
with the National Electrical Code.

• USE OF EXTENSION CORD

Because of potential safety hazards under certain conditions, we strongly recommend against the use of an
extension cord. However, if you still elect to use an extension cord, it is absolutely necessary that it will be a UL
listed 3-wire grounding type appliance extension cord rated has a 3-blade grounding plug and a 3-slot
receptacle that will plug into the appliance. The marked rating of the extension cord should be 125V 13A (Min.).

ELECTRICAL REQUIREMENTS

WARNING :

To avoid death, personal injury or properly damage due to electrical shock, this unit must be
grounded.
Do not under any circumstances cut or remove the round grounding prong from the plug.
Do not use a two prong adapter.

WARNING :

To avoid death, personal injury or properly damage due to electrical shock, do not use an
extension cord or pinch the power cord.
Do not remove the warning tag from the power cord.

13

BEFORE CALLING FOR SERVICE

When you find something wrong with your room air conditioner, please carefully check the following items.
If you are unable to find the cause of trouble, contact your service dealer.

Difficulty

• Air conditioner does
not operate.

• Little or no cooling

• Noisy unit

• Odors in from unit

• Water in base pan.

Possible Cause

• No power to unit.

• Compressor lockout on initial
plug in.

• Dirty air filter

• Is there anything blocking the
front?

• Air conditioner undersized for
application.

• Loose parts

• Weak building construction.

• Water hitting fan.

• Mold, mildew or algae formation
on wet surfaces.

• Normal for operation in humid
areas.

Suggested Solution

•

Confirm power cord is plugged in.

•

Verify main power switch
(main circuit breaker) or fuse
of the unit is good.

• Wait 3 to 4 minutes and restart
the unit.

• Clean air filter.

• When blocked by curtains,
blinds, or furnitures, etc., the air
flow is restricted and cooling
performance is affected.

• Check with dealer to determine
proper unit capacity for
application.

•Tighten any loose parts.

• Provide additional support.

• Normal in high humidity.

• Stop noise by allowing water to
drain from base fan through
drain hole.

• Place algaecide tablet in base
pan

• Remove water in base pan
through drain hole.

• Water in base pan is picked up
by the fan blade and thrown onto
the warm outdoor coil where
water then evaporates.

Limited Warranty

DAEWOO ELECTRONICS CORPORATION OF AMERICA warrants the following
window room air-conditioner to be free from defective material and workmanship and
agrees to remedy any such defect or to furnish a new part (at the Company’s option) in
exchange for any part of any unit of its manufacture which under normal installation,
use and service disclosed such defect, provided the unit is delivered by the owner to
store or dealer where purchased or Daewoo authorized service center. To establish
and receive warranty service at our store, dealer or our authorized service center, a
sales receipt or bill of sales is required for proof of purchase.

This warranty does not extend to any of our electronic products which have been
subjected to misuse, neglect, accident, incorrect wiring not our own, improper
installation, unauthorized modification, or to use in violation of instructions furnished by
us, nor units which have been repaired or altered outside of our factory, nor to cases
where the serial number thereof has been removed, defaced, or changed.

This warranty is in lieu of all warranties expressed or implied and no representative or
person is authorized to assume for us any other liability in connection with the sales of
our electronic products.

Over the counter exchange for units that are initially defective. Initial defective is
described as when the dealer opens the unit and finds that it is inoperative or an
individual customer opening a new unit and finding that it is initially defective. This unit
may be returned to the factory by the dealer for exchange. Under no circumstances
will an individual customer be permitted to return defective unit directly to factory.
Exchange must be directly with the dealer. When this unit is returned to dealer, a copy
of the purchase evidence stating the date of purchase is to be put in the individual box
for dealer’s further control with the factory.

MODEL PARTS LABOR COMPRESSOR

WM-501 1 year 1 year 5 years

Note: The warranty service center list is constantly changing with the addition of our

current qualified service centers. If there is inadequate or no local service facility,
subject individual customer will call DAEWOO on the toll free number
1-800-DAEWOO8(1-800-323-9668) to be provided with further informations.

MODEL #:

WM-501

ROOM AIR CONDITIONER
USE & CARE MANUAL

WINDOW TYPE ROOM AIR CONDITIONER

W1

R

C

US

LISTED

UL and

CUL listed

Please read carefully and thoroughly this manual before
operating the unit.
If you still have any difficulties or problems, consult your
dealer for help or ELECTRONICS.
Please keep this manual well.