Samsung AWH090ZE0K User manual

ROOM AIR CONDITIONER
AWH090ZE0K
AIR CONDITIONER CONTENTS
1. Precautions
2. Product Specifications
3. Installation and Operating
Instructions
4. Disassembly and Reassembly
5. Troubleshooting
6. Exploded Views and Parts List
7. Block Diagram
8. Wiring Diagram
SERVICE Manual
AWH-090ZE/front 6/22/98 3:18 PM Page 1

1. Precautions
Samsung Electronics 1-1
1. Warning: Prior to repair, disconnect the
power cord from the circuit breaker.
2. Use proper parts: Use only exact
replacement parts. (Also, we recommend
replacing parts rather than repairing them.)
3. Use the proper tools: Use the proper tools
and test equipment, and know how to use
equipment may cause problems later-
intermittent contact, for example.
4. Power Cord: Prior to repair, check the
power cord and replace it if necessary.
5. Avoid using an extension cord, and avoid
tapping into a power cord. This practice
may result in malfunction or fire.
6. After completing repairs and reassembly,
check the insulation resistance, Procedure:
Prior to applying power, measure the
resistance between the power cord and the
ground terminal. The resistance must be
greater than 30 megohms.
7. Make sure that the grounds are adequate.
8. Make sure that the installation conditions
are satisfactory. Relocate the unit if
necessary.
9. Keep children away from the unit while it is
being repaired.
10. Be sure to clean the unit and its surrounding
area.
Fig. 1-1 Avoid Dangerous Contact
Fig. 1-2 No Tapping and No Extension Cords
Fig. 1-3 No Kids Nearby!
Fig. 1-4 Clean the Unit
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2. Product Specifications
2-1 Table
Samsung Electronics 2-1
Item
Type
Dimensions:
(Width X Height X Depth)
Packing Size
(Width X Height X Depth)
Voltage:
Phase
Frequency
Operating Current
Power Consumption
Refrigerant Type
Refrigerant Charge
Capacity
EER
Net Weight
Condenser
Condenser Fan
Evaporator
Evaporator Fan
Fan Motor
Compressor(Rotary)
Overload Protect
Compressor Capacitor
Fan Motor Capacitor
Fan Speed Control
Thermo Control
Unit of Measure
-
mm
mm
Volt
-
Hz
A
W
FREON
g
BTU/h
BTU/h.W
kg
Row
Type
Row
Type
W
Model
-
µF/ VAC
µF/ VAC
-
-
AWH090ZE(COOL/HEAT)
Window
520 X 345 X 515
580 X 445 X 580
220 ~ 240
Single
50
4.3 / 3.8
1,020 / 860
R-22
510
8,500 / 8,500
8.3 / 9.7
36
2 X 13
Propeller Fan
2 X 12
Blower
AMAFS-040AXEA
44H092JW1E4
MRA12037-12007
30 / 370
3 / 370
Fan speed switch (High & Low)
Thermostat
Remarks
(DUAL)
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2-2 Dimensions
2-2-1 Main Unit
2-2 Samsung Electronics
515
520
345
Front view Side view
Unit : mm
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3. Installation and Operating Instructions
3-1 Installation
Samsung Electronics 3-1
1. Make sure that you install the unit in an area that
provides good ventilation.
The air conditioner must not be blocked by any
obstacle affecting the air flow near the air inlet and
air outlet.
2. Make sure that you install the unit in an area which
can endure the weight and vibration of the unit.
3. Make sure that you install the unit away from heat
or vapor.
4. Make sure that you install the unit in an area where
the cooled(heated) air can be evenly spread in a
room.
5. Make sure that you install the unit in an area away
from TVs, audio units, cordless phones, fluorescent
lighting fixtures and other electrical appliances.
(obtain a clearance of at least one meter)
6. Make sure that you install the unit in an area which
provides easy drainage for condensed water.
7. Make sure that you install the unit in an area not
exposed to rain or direct sunlight.
(Install a separate sunblind if exposed to direct sun-
light.)
8. Do not install the unit in an area subjected to noise
or vibration amplification which may affect your
neighbor.
(Fix the unit firmly if mounted in a high place.)
*When selecting the area for installing the unit, be sure to obtain approval of the customer.
Caution:
Do not use the air conditioner in such areas as a greasy area(including machine oil),
saline area(sea side), or sulphuric area(hot spring). When using the air conditioner in these areas,
special maintenance is required. Contact your local dealer or our service center for advice.
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3-2 Function Description
3-2-1 Operation control
3-2 Samsung Electronics
Thermostat control
Operation control
(1) COOL MODE(BLUE POSITION) :
The air conditioner starts cooling, provided that the room temperature is higher than the selected temperature.
• ( HI COOL) : The fan turns rapidly.
• (LOW COOL) : The fan turns slowly.
• Thermostat control in cool mode.
Left end : COOL air will be supplied above 30 ~ 35˚C
COOL air will be ceased below 28 ~ 32.5˚C
Right end : COOL air will be supplied above 17.4 ~ 20.4˚C
COOL air will be ceased below 14.4 ~ 17.4˚C
(2) HEAT MODE(RED POSITION) :
The air conditioner starts heating, provided that the room temperature is lower than the selected temperature.
• ( HI HEAT) : The fan turns rapidly.
• (LOW HEAT) : The fan turns slowly.
• Thermostat control in heat mode.
Left end : HEAT air will be supplied below 14.4 ~ 17.4˚C
HEAT air will be ceased above 17.4 ~ 20.4˚C
Right end : HEAT air will be supplied below 28 ~ 32.5˚C
HEAT air will be ceased above 30 ~ 35˚C
• DEICE function in heat mode :
Deice operation is controlled by sensing the condenser heat exchange temperature and timer.
✻Deice time is about 5 minutes.
✻Operating the deice, the air conditioner starts cooling cycle and then the fan stops.
✻Deice operation
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COND SENSOR TEMP(DEICE THERMOSTAT)
Samsung Electronics 3-3
3-2-2 Air swing switch(Option)
(3) FAN MODE ( )
The fan mode controls dehumidify, filter and circulate room air, with the fan continuing to circulate air while the
compressor is turned off. The fan turns only high speed.
On ( ) :
Automatic ventilation distributes the air flow throughout the room.
(controls the right and left blade-V)
OFF ( ) :
- Maintain a fixed direction of air flow.
Set the air swing switch to OFF the instant the blade-V come to the desired positioner.
- When the air conditioner starts up in deice mode automatically, the swing of blade is stopped for a moment
and the deice operating is stopped, the swing of blade operates again.
3-2-3 Ventilation switch
Use the ventilation switch when you want to exhaust unfresh air.
Open position : The air inside the room circulates while
exhausted is sent outside.
Closed position : The air inside the room circulates without
exhaust
8°C
-3°C
COMP
TIMER
FAN
4WAY V/V
AIR SWING
TIME
ON
ON
OFF
OFF
OFF
DEICE ON DEICE OFF
OFF
(OFF TIME)(ON TIME)
50 min
(1.5 min)
ON
Deice time(about 5 min)
Open
Position Closed Position
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4. Disassembly and Reassembly
4-1 Compressor Replacement Flow Chart
Samsung Electronics 4-1
Locate cause of defect
Release refrigerant
Disconnect electrical wiring
from compressor
Cut refrigerant lines
from compressor
Plug disconnected lines
Replace compressor
Inspect electrical
wiring for defects,
and terminals for
correct and secure
connections
Solder discharge line
Corrective action Check refrigerant oil level
Add oil as necessary
Solder suction line Use nitrogen gas
Perform soldering function
Fill system with nitrogen gas
Check for leakage
Recharge system
Recharge system
Evacuate system
Release nitrogen gas?
Problem?
Low oil level? NY
Y N
N
Y
Leakage?
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4-2 Checking the oil
4-2-1 Oil quality
4-2-2 Replacing and refilling the refrigerant oil
1. Replacing the compressor - Do not fill the system with oil as the compressor is already charged.
2. Replacing the condenser - Refill 50cc.
3. Replacing the evaporator - Refill 50cc.
4. Replacing the refrigerant - Refill 30cc.
5. The high pressure side is filled up with oil after the vacuum is completed.
6. When the refrigerant leaks, it is generally not necessary to refill the oil if the leakage is not severe.
4-2 Samsung Electronics
Fill the transparent container with 10cc of oil, and then conduct the test.
Refrigerant Cycle
Normal
Over-heated
Compressor damage
Color
Light Yellow
Brown
Dark brown
Odor
No Odor
-
Pungent oil
Remarks
Return with the system
Oil Change
Oil Change
Oil Condition
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4-3 Disassembly and Reassembly Procedure
Samsung Electronics 4-3
Stop operation of the air conditioner and remove the power cord before repairing the unit
No. Part name Procedures Remarks
①
➁
Ass'y-Grill
Ass'y-Frame
1. Pull out the Guard-air filter on the grille.
2. Remove the Screw on the grille.
3. Push the grille left side and pull up.
4. Pull out the Seal-cabi front between Base
pan and Cabinet.
1. Remove the 2 screws both side of the
cabinet .
2. Pull the handle at the Base pan to separate
the frame from the Cabinet.
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