Samsung FH052EAMT User manual

INDOOR UNIT
FH052EAMT
FH070EAMT
OUTDOOR UNIT
UH052EAMT
UH070EAMT
SERVICE Manual
CONTENTSAIR CONDITIONER
1. Product Specifications
2. Disassembly and Reassembly
3. Refrigerating Cycle Diagram
4. Set Up the Model Option
5. Control Specification & Troubleshooting
6. Exploded Views and Parts List
7. PCB Diagram
8. Wiring Diagram
9. Schematic Diagram
CEILING TYPE AIR CONDITIONER
DB98_14413A(1)_co 10/9/03 5:43 PM Page 3

1Samsung Electronics
1. Product Specifications
1-1 Table
Cooling Btu/h
Capacity W
Heating Btu/h
W
Power Supply ø/V/Hz
Power Input Cooling W
Heating W
Running Cooling A
Current Heating A
H.H r.p.m
Fan Speed Hi r.p.m
Mid r.p.m
Low r.p.m
H.H m3/min
Air Flow Hi m3/min
Mid m3/min
Low m3/min
Noise Level(Hi) Cooling(Hi) dB(A)
(Sound Pressure) Heating(Hi) dB(A)
Heat Exchanger Type
Row x Stages x Fin Pitch
Fan Type
Motor Output W
Hmm
Dimensions W mm
Dmm
Weight Net / Gross kg
Fan Speed Hi r.p.m
Low r.p.m
Air Flow(Hi) m3/min
Noise Level Cooling(Hi) dB(A)
(Sound Pressure) Heating(Hi) dB(A)
Fan Type
Motor Output W
Type
Compressor Model
Motor Output kW
Protection
18,700
5,500
20,400
6,000
1/220 ~ 240/50
1,800
1,850
8.0
8.2
-
1,020
920
820
-
12
11
10
48
48
Slit
3 x 12 x 1.5mm
Sirocco
90
200
1,000
650
22 / 26
750
400
45
60
61
Propeller
60
Rotary
NN21VBAMT
1.3
Internal
FH070EAMT
UH070EAMT
FH052EAMT
UH052EAMT
MODEL INDOOR UNIT
OUTDOOR UNIT
23,800
7,000
26,100
7,700
1/220 ~ 240/50
2,400
2,600
11.0
11.9
-
1,160
1,060
960
-
14
13
12
48
48
Slit
3 x 12 x 1.5mm
Sirocco
90
200
1,000
650
22 / 26
850
340
51
60
61
Propeller
73
Rotary
NN29VACMT
1.9
Internal
Indoor
Unit
Outdoor
Unit
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 1

Samsung Electronics2
Table(cont.)
Type
Refrigerant Charge g
Adding Charge g/m
Control
Heat Exchanger Type
Row x Stages x Fin Pitch
Dimensions H mm
Wmm
Dmm
Weight Net / Gross kg
Pipe O.D Size Liquid mm(inch)
Gas mm(inch)
Connection Method
Between Height m
Pipe Length m
R410a
1,550
25
Elec.Expansion Valve
Slit
2 x 28 x 1.5mm
648
880
310
67 / 72
6.35(1/4")
12.7(1/2")
Flare
15
30
FH070EAMT
UH070EAMT
FH052EAMT
UH052EAMT
MODEL INDOOR UNIT
OUTDOOR UNIT
R410a
1,650
30
Elec.Expansion Valve
Slit
2 x 28 x 1.5mm
648
880
310
69 / 74
6.35(1/4")
15.88(5/8")
Flare
15
30
Outdoor
Unit
Piping
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 2

3Samsung Electronics
(Unit : mm)
1-2 Dimensions
1-2-1 Indoor Unit
Air flow blade(up/down)
Air flow blade(right/left)
Air filter
Front grille
Remote control
sensor
Defrosting indicator
Filter sign indicator
Fan indicator
Auto indicator
Timer indicator
Operation indicator
On/Off button
45
50
240
200
650
197
922
1,000
Back side
Pipe outlet (bottom side)
Drain hose outlet
Wiring hole
Air intake hole (Ø50)
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 3

880
648
310
Product Specifications
Samsung Electronics4
1-2-2 Outdoor Unit
(Unit : mm)
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 4

5Samsung 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 Electrical
Part 1) Open the grille by pressing 3 position.
(center and both side)
2) Detach the air inlet grille.
3) Open the cover of component electrical
box by removing 3 screws.
(center and both side)
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 5

Samsung Electronics6
Disassembly and Reassembly
No Parts Procedure Remark
2 Fan & Motor 1) Detach the screw and untie earth
wire of motor.
2) Disconnect of housing of motor wire.
3) Disconnect the capacitor wire.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 6

7Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
4) Loosen the guard safety by removing
6 screws.
5) Detach the upper case of fan. (2EA)
6) Loosen the 4 screws what is fix the motor.
7) Detach the fan and motor assembly.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 7

Samsung Electronics8
Disassembly and Reassembly
No Parts Procedure Remark
3 Drain Pan
8) Loosen the set fixing bolts.
(with a M3 wrench)
9) Detach the fan.
1) Disconnect the display pcb wire as shown
in picture. (white housing)
2) Disconnect the step motor wire as shown
in picture. (blue housing)
3) Disassemble the hanger bracket by
removing the 1 screw.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 8

9Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
4) Loosen the 3 screws of front side.
5) Disassemble the assembly front
cover part.
6) Disconnect the step motor wire as
shown in picture.
7) Detach the wire clamp fixed in base part.
8) Detach the front cover assembly
completely.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 9

Samsung Electronics10
Disassembly and Reassembly
No Parts Procedure Remark
9) Loosen the screw what is fix with base
part and drain pan. (upper side:2EA)
10) Loosen the screw what is fix with base
part and drain pan.
(lower side:2EA)
11) Detach the drain pan completely.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 10

11Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
4 Evaporator 1) Disconnect the thermistor wire as
shown in picture. (white housing)
2) Loosen the 2 screws shown in picture.
3) Loosen the 2 screws shown in picture
and remove plastic part. (white)
4) Loosen the 2 screws shown in picture
and remove steel bracket.
5) Disassemble the 4 screws steel plate in
rear side of the unit.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 11

Samsung Electronics12
Disassembly and Reassembly
No Parts Procedure Remark
6) Loosen the 2 screws as shown in picture.
7) Detach the plastic cover as shown in
picture.
8) Detach the evaporator assembly.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 12

13Samsung Electronics
Disassembly and Reassembly
No Parts Procedure Remark
5
6
Stepping Motor
Display PCB
1) Loosen the 4 screws in rear side of front
cover assembly as shown in picture.
2) Loosen the 2 screws as shown in picture.
3) Disassemble the blade and stepping
motor assembly and remove the 2 screws
stepping motor.
1) Loosen the 3 screws in rear side of front
cover assembly as shown in picture.
2) Disassemble display PCB assembly
and disconnect wire.
3) Disassemble the display PCB.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 13

Samsung Electronics14
No Parts Procedure Remark
1
2
Cabinet
Fan Motor
&
Propeller Fan
1) Turn off the unit and remove the power
cable.
2) Detach the top cover.
3) Detach the control box cover.
4) Unplug the ass'y cable.
5) Detach the cabi-side.
6) Detach the cabi-front.
●Cautions
When you assemble the parts, check if the
each parts and component electric box are
fixed firmly.
1) Loosen the indicating bolt screw.
2) Disassemble the propeller fan.
2-2 Outdoor Unit
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 14

15Samsung Electronics
3. Refrigerating Cycle Diagram
Indoor Unit Outdoor Unit
❋ Allowable pipe length : Max. 30m
❋ Allowable drop distance : Max. 15m
Heat
exchanger
(Evaporator)
Heat
exchanger
(Condensor)
Cooling
Heating
Gas leak check point
Capillary tube
Liquid pipe
Gas pipe
Compressor
Accumulator Muffler
2-way valve
Filter Filter
4-way valve
Expansion
valve
3-way valve
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 15

Samsung Electronics16
4. Set Up the Model Option
4-1 Setting Option Setup Method
Option No. :
Step 1 : Enter the Option Setup mode.
1st Take out the batteries of remote control.
2nd Press the temperature button simultaneously and
insert the battery again.
3rd Make sure the remocon 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.
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 16

Set Up the Model Option
17Samsung Electronics
7
8
9
10
11
12
7
8
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.
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 : Pressthe ON/OFF button .
When pressing the operation ON/OFF key with the direction of remote controller for unit, the sound “Ding” or “Diriring” is
heard and the OPERATION LED lamp is flickering at the same time, then the input of option is completed.
(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 controller.
Second, Re-insert the battery into the remote controller.
Third, Press ON/OFF button( ) with the direction of remote controller for set.
DB98_14413A(1)_1** 10/9/03 5:44 PM Page 17

Set Up the Model Option
Samsung Electronics18
■ OPTION ITEMS
REMOCON
MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12
FH070EAMT
FH052EAMT
0354001C0000
035400190000
DB98_14413A(1)_1** 10/9/03 5:40 PM Page 18

19Samsung Electronics
5-1-1 Tracking process marked on display part
4-1-1
•Left numeral is an address that outdoor unit transfers communication.
---... - (Calling indoor unit)
4-1-1 •Right numeral marks address that is answered.
4-1-1 •During the tracking, left calls indoor unit through
---... - - - and checks. At this time
connected indoor unit set on " " and the indoor unit set address
marked on right.
Right side mark is marked by when left side is .
(If SW02(MAIN) that set indoor unit address is controlled to " ",
indoor unit number marked on outdoor unit is marked by " ".)
5-1-2 Option set part for Outdoor unit PCB
5. Control Specification & Troubleshooting
5-1 Operation Specification
DISPLAY PART (DS1)
Left Right
Setting switch for indoor unit
installation numbers
K2 K4
K1 K3
Counts of Indoor
Unit Installation 123456789101112131415
123456789ABCDEF
Numbers
of the switch
●Example : When the installed indoor unit is one, control the arrow of switch
forward to ‘0’or ‘1’as figure.
Setting switch for indoor unit installation numbers
Data display part
DB98_14413A(1)_1** 10/9/03 5:41 PM Page 19