Samsung GH052EAM User manual

INDOOR UNIT
GH052EAM
GH070EAM
OUTDOOR UNIT
UH052EAMT
UH070EAMT
SERVICE Manual
CONTENTSSYSTEM AIR CONDITIONER
1. Product Specifications
2. Disassembly and Reassembly
3. Set Up the Model Option
4. Troubleshooting
5. Exploded Views and Parts List
6. Block Diagram
7. Wiring Diagram
8. Schematic Diagram
SYSTEM AIR CONDITIONER
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1Samsung Electronics
1. Product Specifications
1-1 Table
BTU/hr
Watts
BTU/hr
Watts
Watts
Watts
A
A
r.p.m
r.p.m
r.p.m
r.p.m
m3 / min
m3 / min
m3 / min
dB(A)
dB(A)
dB(A)
W
mm
mm
mm
kg
r.p.m
r.p.m
dB(A)
W
kW
g
18,700
5,500
20,400
6,000
1ø, 220~240V~, 50Hz
1,750
1,800
7.7
8.0
-
1,315
1,210
1,105
14
12
10
45
44
43
Slit-fin coil
2 x 10 x 1.3(580mm)
Cross Flow Fan
28
230 / 299
890 / 1,077
575 / 642
21 / 25
750
400
61
Propeller Fan
60
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
2,350
2,500
10.5
11.0
-
1,350
1,245
1,140
14
12
10.5
46
45
44
Slit-fin coil
3 x 10 x 1.5(580mm)
Cross Flow Fan
28
230 / 299
890 / 1,077
575 / 642
22 / 26
850
340
61
Propeller Fan
73
Rotary
NN29VACMT
1.9
Internal
Slit-fin coil
2 x 28 x 1.5
EEV
R410A
1,650
MODEL
GH052EAM GH070EAM
UH052EAMT
PG103M, PG103M1, PG103M2
UH070EAMT
INDOOR UNIT
OUTDOOR UNIT
PANEL
Capacity
Power Supply
Power Input
Running Current
Fan Speed
Air Circulation
Heat Exchanger
Fan
Weight
Fan Speed
Fan
Compressor
Heat Exchanger
Refrigerant
Cooling
Heating
Cooling
Heating
Cooling
Heating
U-High
High
Mid
Low
High
Mid
Low
High
Mid
Low
Motor Output
H
W
D
Net / Gross
High
Low
Motor Output
Motor Output
Charge
Type
Row x Stages x Fin Pitch
Type
Type
Type
Model
Protection
Type
Row x Stages x Fin Pitch
Control
Type
Outdoor Unit
Indoor Unit
Sound Pressure Level
Noise Level
(Sound Pressure)
Dimension
(Net / Gross)
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Table(cont.)
Notice : Air Flow rate : Fan Step Control : Low → Mid → High
mm
mm
mm
kg
˚C
˚C
˚C
˚C
mm(inch)
mm(inch)
m
m
mm
mm
mm
kg
648 / 749
880 / 1,079
310 / 418
67 / 72
27 / 19
20 / 15
35 / 24
7 / 6
6.35(1/4")
12.7(1/2")
Flare
Max. 15
Max. 30 70 / 151
1,030 / 1,103
650 / 727
4 / 8
648 / 749
880 / 1,079
310 / 418
69 / 74
27 / 19
20 / 15
35 / 24
7 / 6
6.35(1/4")
15.88(5/8")
Flare
Max. 15
Max. 30
MODEL
GH052EAM GH070EAM
UH052EAMT
PG103M, PG103M1, PG103M2
UH070EAMT
INDOOR UNIT
OUTDOOR UNIT
PANEL
H
W
D
Net / Gross
Cool(DB/WB)
Heat(DB/WB)
Cool(DB/WB)
Heat(DB/WB)
Liquid
Gas
Height
Pipe Length
H
W
D
Net / Gross
Outdoor Unit
Condition
Piping
Panel
Weight
Indoor Unit
Outdoor Unit
Pipe O.D. Size
Connection Method
Between
Weight
Dimension
(Net / Gross)
Dimension
(Net / Gross)
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3Samsung Electronics
2. Disassembly and Reassembly
2-1 Indoor Unit
Stop operation of the air conditioner and remove the power cord before repairing the unit.
No Parts Procedure Remark
1 Front Grille
_Dust-Collecting
Filter
1) Press the "PUSH".
2) Front Grille Disassembly
(1) Open the Front Grille and pull it up to
the direction in the picture.
(2) Detach the Safe Ring.
3) Filter Disassembly
(1) Detach the Filter by disassembling the
Grille hook.
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Disassembly and Reassembly
No Parts Procedure Remark
4) Detach 6 bolts and 2 fixing screws
connected to the Main Body.(Mark point)
5) Unscrew a mark point in the picture,
and detach the Cover from the Panel
with pushing the hook.
6) Detach the connection wires of Step
Motor and the receive part from the wire
of a Main Body.
7) Widen the both hooks of panel hooked
with the Main Body to both sides, and
detach the Panel from the Indoor Unit.
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5Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
2 Electronic Part
_Indoor & Outdoor
Connecting Cable
1) Unscrew 2 fixing screws of the Case
control and screw of Thermistor wire and
holder.
2) Push the hook, and pull the knob of a
case.
3) Detach the indoor and outdoor connection
wire cable connected to the Terminal.
4) Detach the Fan Motor connection wire,
Heat Exchanger Sensor connection wire,
and the Drain Pump Float S/W connection
wire from the connecter.
5) Detach the Control Box from the main body.
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Disassembly and Reassembly
No Parts Procedure Remark
3 EVAP ASS'Y 1) Unsrew 3 screws connected to the main
body and Cover Side.
2) Detach the Cover Side if from the main
body.
3) Unscrew 16 screws connected to the Drain
Pan and the main body.(Mark point)
4) Detach the Drain Pan from the main body.
5) Unscrew 4 Heat Exchanger screws
connected to the cabinet body and cover
Evap Guide.
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7Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
4 Fan
&
Motor
6) Detach the Drain Pump Sensor from the
holder, and detach the Heat Exchanger
from the main body by pushing it to the
direction of Drain.
1) Unscrew 4 screws of Cover Motor and
Evap Guide connected to the Case Motor.
2) After detaching the Cover Motor by
pushing the hook, detach the Cover Evap
Guide.
3) Detach the Motor and Fan from the case.
(Use M3 wrench when detaching the Motor
from the Fan.)
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Disassembly and Reassembly
No Parts Procedure Remark
5
6
Drain Pump
Other Parts
1) Detach the Drain Hose connected to the
Drain Pump by loosening the spring.
2) Unscrew 4 screws connected to the
Holder Pump and Drain Pump.
3) After connector detaching, detach the Drain
Pump from the holder.
1) In case of the other parts, detach it like a
picture when necessary.
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9Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
7 Front Panel 1) Unscrew 2 screws of the Holder Motor
fixed on the Panel, and detach the Holder
Motor. The Panel, and detach the Holder
Motor.
2) Unscrew 2 screws of the Step-Motor,
and detach the Step-Motor from the Panel.
3) Detach the cable clamp screw.
4) Push the hook of case PCB to the both
sides and detach the case from the Panel.
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Disassembly and Reassembly
No Parts Procedure Remark
5) When detaching the PCB from the case,
unscrew the 6 screws and push the hook
at the mark.
6) When detaching the blade, detach the
opposite side first of Step Motor after
turning over the guide on the Panel.
7) When detaching the Blade V, after
detaching the link by pushing, detach
the blade with pushing to the direction
of arrow.
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11Samsung Electronics
No Parts Procedure Remark
1 Common Work 1) Loosen the fixing screws and separate the
Cover Control.
2) Separate the connection wire from the
Terminal Block.
3) Loosen the fixing screws and separate the
Upper Cabinet.
4) Loosen the fixing screws and separate the
Front Cabinet.
5) Loosen 2 screws and pull up the
Control Box.
6) Separate the terminal cover and separate
the Comp lead wire.
2-2 Outdoor Unit
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Disassembly and Reassembly
No Parts Procedure Remark
2 Fan
&
Motor
7) Loosen the fixing screws and separate the
Cabinet Side.
1) Loosen the fixing bolt and separate
the Fan.
2) Loosen 4 fixing bolts to separate
the Motor.
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13Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
3 Heat Exchanger
&
Compressor
1) Release the refrigerant at first.
2) Disassemble the inlet and outlet pipe
by welding.
3) Loosen the fixing screws of the Heat
Exchanger.
4) Separate the Heat Exchanger.
5) Loosen four bolts of the Compressor.
6) Separate the Compressor.
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3. Set Up the Model Option
3-1 Setting Option Setup Method
ex) Option No. :
Step 1 : Enter the Option Setup mode.
1st Take out the batteries of remote control.
2nd Press the temp. button simultaneously and
insert the battery again.
3rd Make sure the remote control display shown as .
Step 2 : Enter the Option Setup mode and select your option according to the following procedure.
1
2
3
4
5
6
1
2
The default value is .
Otherwise, push the button to .
Every time you push the button, the display panel reads or
repeatedly.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
✳Setting is not required if you must
a value which has a default.
3
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
4
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
5
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
6
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
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15Samsung Electronics
Set up the Model Option
7
8
9
10
11
12
7
8
Press button, then the default value is .
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
✳Setting is not required if you must
a value which has a default.
9
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
10
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
11
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
12
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
Step 3 : Upon completion of the selection, check you made right selections.
Press the Mode Selection key, to set the display part to and check the display part.
The display part shows .
Press the Mode Selection key, to set the display part to and check the display part.
The display part shows .
Step 4 : Pressing the ON/OFF button ( )
When pressing the operation ON/OFF key with the direction of remote control for unit, the sound ''Ding'' or ''Diriring'' is
heard and the OPERATION ICON( ) lamp of the display is flickering at the same time, then the input of option is com-
pleted. (If the diriring sound isn't heard, try again pressing the ON/OFF button.)
Step 5 : Unit operation test-run
First, Remove the battery from the remote control.
Second, Re-insert the battery into the remote control.
Third, Press ON/OFF button( ) with the direction of remote control for set.
• Error Mode
1st If all lamps of indoor unit are flickering, Plug out, plug in power plug again and press ON/OFF key to retry.
2nd If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is
set up for its model.
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Set up the Model Option
■ OPTION ITEMS
MODEL
REMOTE
CONTROL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
GH052EAM
GH070EAM
0254421A0371
0254421c0382
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17Samsung Electronics
4-1 LED Display on the indoor unit
■Detection of errors
●If an error occurs during the operation, one or more LED flickers and the operation is stopped except the LED.
● If you re-operate the air conditioner, it operates normally at first, then detect an error again.
4. Troubleshooting
1. Error of indoor unit: Displayed on
the indoor unit regardless of
operation
2. Error of outdoor unit: Displayed on
the indoor unit which is operating
Displayed on appropriate indoor unit
which is operating
Displayed on outdoor unit
Displayed on appropriate indoor unit
which is operating
Displayed on outdoor unit
Displayed on appropriate indoor unit
which is operating
Displayed on appropriate indoor unit
which is operating
1. No communication for 2 minutes between
indoor unit and outdoor unit
(communication error for more than
2 minutes)
2. Indoor unit receiving the communication error
from outdoor unit
3. Outdoor unit tracking 3 minute error
4. When sending the communication error from
outdoor unit the mismatching of the
communication numbers and installed
numbers after completion of tracking.(communi-
cation error for more than 2 minutes)
Error of outdoor temp. sensor
Error of COND sensor
Error of DISCHARGE sensor
Error of heat exchanger sensor in indoor unit
Error of temp. sensor in indoor unit
(OPEN/SHORT)
Power reset
-
If you turn off the air conditioner when the LED is flickering, the LED is also turned off. : On : Flickering : Off
-
If you re-operate the air conditioner, it operates normally at first, then detect an error again.
Communication error between indoor units
Operating
Indicators
Abnormal conditions
Green Red
Self-diagnostic error
(including the indoor unit not detected)
1. Error of electronic expansion valve close
2. Error of electronic expansion valve open
3. 2nd detection of high temp. COND
4. 2nd detection of high temp.
DISCHARGE
5. Error of reverse phase
6. Compressor down due to 6th detection of
freezing
Error of float switch
Error of setting option switches for optional
accessories
EEPROM error
EEPROM option error
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Error about protection
control of outdoor unit
Errors about outdoor unit
sensor (OPEN/SHORT)
Detection during the
operation of indoor unit
(Sensing and sending errors
into the communication data)
Communication and
indoor unit errors
Self-diagnosis of indoor and
outdoor unit (x:indoor unit
address)
Displays of operating status
x
Flicker
Flicker
K1, K2, K3, K4,
K5 Flicker
x
x
High temp. of Discharge (Protection control)
High temp. of outdoor heat exchanger (Protection control)
COMP DOWN to protect being frozen
Error of momentary power failure (disappears when the unit is Off/On)
Error of OUT TEMP. sensor (OPEN/SHORT)
Error of temp. sensor in outdoor heat exchanger (OPEN/SHORT)
Error of Discharge TEMP. sensor (OPEN/SHORT)
System Down caused by communication error after completion of tracking
Mismatching of the indoor unit numbers set with those
communicated after completion of tracking
Error of float switch in indoor unit
Error of setting option switches for optional accessories
OPEN/SHORT error of room sensor in indoor unit
OPEN/SHORT error of evap in sensor in indoor unit
Error of fan starting
Open error of electronic expansion valve in outdoor unit
(Detected once or more times)
Close error of electronic expansion valve in outdoor unit
(Detected once or more times)
Below -5°C when cooling (Outdoor temp.)
Over 30°C when heating (Outdoor temp.)
Refer to page 15
The order of priority : E1 → E2 → E4 → P0 → P1 → P5 → P6 → t1 → t2 → t3 → tu → to → G4 → G5 → E3 → qx → rx → vx →
K1, K2, K3, K4, K5
The order of priority : - In case that the same error displays from multi-indoor units, the one having the faster address has the priority.
Remark
Display Explanation
4-2 Outdoor Unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB.
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19Samsung Electronics
The order of priority : EA →Eb →Cx →dx →ox →qx →rx →tx →Ux →Eo
- In case that the same error displays from multi-indoor units, the one having the faster address has the priority.
4-3 Wired remote controller
●If an error occurs, is displayed on the wired remote controller.
●If you would like to see an error code, press the Test button.
Communication errors
Display RemarksDescription
Displays related to indoor unit
(x : 0~F)
For the details, refer to the
installation manual of the
outdoor unit.
Error of communication between the outdoor unit and the wired
remote controller
Error of communication between the indoor unit and the wired
remote controller
Open error of electronic expansion valve
Close error of electronic expansion valve
Error of float switch
OPEN/SHORT error of room sensor in indoor unit
OPEN/SHORT error of eva in sensor in indoor unit
EEPROM error
EEPROM option error
Error of outdoor unit
x
x
x
x
x
x
x
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