Samsung DH070EZM User manual

INDOOR UNIT
DH070EZM OUTDOOR UNIT UH070EZMC
SERVICE Manual
CONTENTSAIR CONDITIONER
1. Product Specifications
2. Installation
3. Disassembly and Reassembly
4. Refrigerating Cycle Diagram
5. Troubleshooting
6. Exploded Views and Parts List
7. PCB Diagram
8. Wiring Diagram
9. Schematic Diagram
DUCT TYPE 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
m3/min
dB(A)
dB(A)
dB(A)
W
mm
mm
mm
kg
Watts
Watts
A
A
r.p.m
r.p.m
dB(A)
W
kW
m2
kg
23,900
7,000
26,300
7,700
200
200
1.0
1.0
1,050
950
900
850
19.5
17.5
16.5
15.5
46
45
44
D-fin coil
2 x 10 x 1.7(1,100mm)
Sirocco
97
260
1,340
600
41 / 47
2,250
2,250
11.2
11.2
820
400
57
Propeller Fan
60
Rotary
SHV33YC6-G
2.22
Internal
wave fin coil
2 x 24 x 1.5(900mm)
0.55
EEV
R-22
2.1
1ø, 220-240V~, 50Hz
Sound Pressure Level
MODEL DH070EZM
UH070EZMC
INDOOR UNIT
OUTDOOR UNIT
Capacity
Power Supply
Power Input
Running Current
Fan Speed
Air Circulation
Noise Level
(Sound Pressure)
Heat Exchanger
Fan
Dimension
Weight
Power Input
Running Current
Fan Speed
Fan
Compressor
Heat Exchanger
Refrigerant
Cooling
Heating
Cooling
Heating
Cooling
Heating
H.H
Hi
Mid
Low
U-High
High
Mid
Low
High
Mid
Low
Motor Output
H
W
D
Net / Gross
Cooling
Heating
Cooling
Heating
High
Low
Motor Output
Capacity
Face Area
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
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Samsung Electronics2
Table(cont.)
mm
mm
mm
kg
˚C
˚C
˚C
˚C
mm(inch)
mm(inch)
m
m
638
880
310
67 / 72
27 / 19
20 / 15
35 / 24
7 / 6
9.52(3/8")
15.88(5/8")
Flare
Max. 15
Max. 30
MODEL DH070EZM
UH070EZMC
INDOOR UNIT
OUTDOOR UNIT
Dimension
Weight
Indoor Unit
Outdoor Unit
Pipe O.D. Size
Between
H
W
D
Net / Gross
Cool(DB/WB)
Heat(DB/WB)
Cool(DB/WB)
Heat(DB/WB)
Liquid
Gas
Height
Pipe Length
Connection Method
Outdoor Unit
Condition
Piping
Notice : This model is tested under the external static pressure of 4mmAq.
Notice :Air Flow rate : Fan Step Control : Low → Mid → High → Ultra High
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3Samsung Electronics
(Unit : mm)
1-2 Dimensions
1-2-1 Indoor Unit
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Product Specifications
Samsung Electronics4
1-2-2 Outdoor Unit
(Unit : mm)
310
638
660
880
(Front View) (Rear View)
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5Samsung Electronics
1. Before installing the indoor unit, assign an address to the indoor unit according to the air conditioning system plan.
2. The address of the indoor unit is assigned by adjusting MAIN(SW02) and RMC(SW01) rotary switches.
3. The MAIN address is for communication between the indoor unit and the outdoor unit.
Therefore, you must set it to operate the air conditioner properly.
4. It is required to set the RMC address if you install the wired remote controller and/or the centralized controller.
5. If you install optional accessories such as the wired remote controller, centralized controller, etc. see an appropriate
installation manual.
6. If an optional accessory is not installed, you do not have to set the RMC address. However, adjust K1 and K2 switches of
the SW03 DIP switch to "ON" position in this case.
7. Set the MAIN address by adjusting the rotary switch(SW02) from 0 to F. Each indoor unit connected to the same outdoor
unit must have different address.
7. i. e. If an indoor unit does not have an optional accessory and its
MAIN address is "4".
K1 K2 K3 K4
K5 K6 K7 K8
K9
K10 K11 K12
SW02 MAIN SW01 RMC
SW03
SW04
SW05
K1 K2 K3 K4
K5 K6 K7 K8
K9
K10 K11 K12
SW02 MAIN
SW03
SW04
SW05
SW01 RMC
2. Installation
2-1 Assigning Address to Indoor Unit
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Samsung Electronics6
2-2 Additional Functions
■Compensation for lost temperature in heating operation
■ •Reduces the difference between an actual room temperature and a sensed
■ •temperature by the air conditioner when heating.
■Adjusting filter cleaning cycle
■ •You can adjust the cycle for filter sign indicator.
■Hot water heater
■ •You must adjust the K7 when you install the hot water heater.
K6 1000 hours 2000 hours
Switch No. Switch ON Switch OFF
K7 No use of hot water heater Use of hot water heater
Switch No. Switch ON Switch OFF
SW04
K5 K6 K7 K8
SW04
K5 K6 K7 K8
SW04
K5 K6 K7 K8
K5 2°C compensation 5°C compensation
Switch No. Switch ON Switch OFF
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7Samsung Electronics
■Rotary Switch
■ You should display that how many indoor units are connected to the
outdoor unit. Refer to the table below, then turn the arrow to appropriate
position.
■Option Switch
0 or 1
2
3
4
5
6
7
8
One
Two
Three
Four
Five
Six
Seven
Eight
9
A
B
C
D
E
F
-
Nine
Ten
Eleven
Twelve
Thirteen
Fourteen
Fifteen
-
Switch No. Number of
indoor unit(s) Switch No. Number of
indoor unit(s)
RESETCHECK MODE DISPLAY
MODE
K1 K2 K3 K4
DIS 1
SEG 1 SEG 2 SEG 3 SEG 4
DIS 2
■KEY ■Display
2-3 Setting Up Option Switches
Rotary Switch
Key
Display
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Installation
Samsung Electronics8
K1
1
2
3
1
2
3
4
1
2
3
4
5
6
7
Adding refrigerant for heat pump models
Test operation for heat pump models
End
Adding refrigerant for cooling only models
Test operation for cooling only models
Pump Down for recovery of refrigerant
End
Reset
Discharge temperature of compressor
Temperature of outdoor heat exchanger
Outdoor temperature
Step of electronic expansion valve
(0 step : all closed, 480 step : all open)
Temperature of evaporator
Indoor temperature
Stopping view mode & display communication data
110 °C
38 °C
34 °C
120STEP
(12 x 10)
-2 °C
12 °C
22 °C
KEY Number of
press Item Example
Display Meaning
K2
K3
K4
Function
Number
of press times
1
2
3
4
✳ Use the K1 only for heat pump models.
K1
(Displayed on SEG 3, 4)
Adding refrigerant at
heating mode
Test operation at
heating mode
End
-
K2
(Displayed on SEG 3, 4)
Adding refrigerant at
cooling mode
Test operation at
cooling mode
Pump Down for recovery
of refrigerant
End
K3
(Displayed on SEG 3, 4)
Reset
-
-
-
K4
(Displayed on SEG 3, 4)
Displays data
-
-
-
■Summary of KEY functions
■Reading data indicated on the display
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9Samsung Electronics
3. Disassembly and Reassembly
3-1 Indoor Unit
Stop operation of the air conditioner and remove the power cord before repairing the unit.
No Parts Procedure Remark
1
2
Filter-pre
Blower & DUCT
1) Disassemble 2 screws of indication part
and then assemble the direction of
2 plate-handle places by use of screw
as shown in 2).
2) Turn the plate handle by hand when
removing the Filter-pre.
3) When pulling the Filter-pre handle,
the Filter-pre can be assembled.
✳Be sure to remove the cushion on the
marked part after initial installation.
(It cause the damage of noise).
1) After disassembling 9 places indicating
screws, separate Ass'y cover bottom.
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