Samsung AC030JN4DCH User manual

AIR CONDITIONER CONTENTS
SYSTEM AIR CONDITIONER
4 WAY CASSETTE SERIES
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference Sheet
INDOOR UNIT OUTDOOR UNIT
Model : AC030JN4DCH
AC036JN4DCH
AC030JXSCCH
AC036JXSCCH

Section 0
Samsung Electronics 1
Contents
1. Precautions........................................................................................................ 1-1
1-1 Precautions for the Service.............................................................................................................................. 1-1
1-2 Precautions related to static electricity and PL....................................................................................... 1-1
1-3 Precautions related to product safety ........................................................................................................ 1-2
1-4 Other precautions............................................................................................................................................... 1-2
2. Product Specifications...................................................................................... 2-1
2-1 The Feature of Product ..................................................................................................................................... 2-1
2-1-1 Features....................................................................................................................................................... 2-1
2-2 Product Specifications ...................................................................................................................................... 2-4
2-3 Specifications of optional items.................................................................................................................... 2-5
2-3-1 Accessories................................................................................................................................................. 2-5
2-3-2 Filter specifications................................................................................................................................. 2-9
3. Disassembly and Reassembly.......................................................................... 3-1
3-1 Indoor unit ..................................................................................................................................................... 3-2
3-2 Outdoor Unit................................................................................................................................................. 3-8
4. Troubleshooting ............................................................................................... 4-1
4-1 Setting an indoor unit address and installation option ...................................................................... 4-1
4-1-1 The procedure of setting option....................................................................................................... 4-1
4-1-2 The procedure of setting option....................................................................................................... 4-2
4-1-3 Order for Setting Options (Wired Remote Controller)............................................................. 4-5
4-1-4 Setting an indoor unit installation option
(Suitable for the condition of each installation location) ........................................................ 4-6
4-1-5 Changing a particular option............................................................................................................. 4-8
4-1-6 Option code for each model............................................................................................................... 4-9
4-2 Items to check before diagnostics ............................................................................................................... 4-10
4-2-1 Test run mode and View Mode ......................................................................................................... 4-10
4-2-2 Eco Mode [Power Saving Mode]....................................................................................................... 4-12
4-2-3 Four directions cassette type ............................................................................................................. 4-13
4-2-4 Wired remote controller....................................................................................................................... 4-14
4-3 Troubleshooting by symptoms..................................................................................................................... 4-17
4-3-1 Indoor temperature sensor (open/short)...................................................................................... 4-17
4-3-2 Indoor heat exchanger temperature sensor (open/short)..................................................... 4-18
4-3-3 Indoor FAN error...................................................................................................................................... 4-19
4-3-4 Communication error after finishing Tracking............................................................................ 4-20
4-3-5 Indoor unit float sensor error ............................................................................................................. 4-21
4-3-6 EEPROM circuit failure........................................................................................................................... 4-22
4-3-7 Thermal Fuse Open Error..................................................................................................................... 4-23
4-3-8 When the outdoor unit power is not ON
– Initial Diagnosis (AC048JXQRHH, AC048JXQRHC): 3-phase products........................... 4-24

Section 0
2Samsung Electronics
Contents
4-3-9 Indoor/outdoor communication error (1min.) (Error Code: E202)...................................... 4-28
4-3-10 Communication error between outdoor unit INV 㽧MAIN MICOM (1 min.)
(Error Code: E203).................................................................................................................................. 4-30
4-3-11 External Sensor Error (Error Code: E221, E231, E251, E320)................................................. 4-31
4-3-12 Outdoor Unit Fan Error (Error Code: E458, E475)..................................................................... 4-32
4-3-13 Error of Compressor Startup and Rotation (Error Code: E461, E467)............................... 4-33
4-3-14 Error of under-current error / PFC over-current (Error Code: E462, E484)..................... 4-35
4-3-15 IPM Over-current Error (Error Code: E464).................................................................................. 4-36
4-3-16 DC LINK Over-current and Low-voltage Error (Error Code: E466)..................................... 4-39
4-3-17 Gas Leakage Error (Error Code: E554 ).......................................................................................... 4-41
4-3-18 Pipe Blocking Error (Error Code: E422)......................................................................................... 4-43
4-3-19 Other.......................................................................................................................................................... 4-44
5. PCB Diagram and Parts List.............................................................................. 5-1
5-1 Indoor Unit............................................................................................................................................................. 5-1
5-1-1 MAIN PCB.................................................................................................................................................... 5-1
5-1-2 Panel PCB.................................................................................................................................................... 5-3
5-2 Outdoor Unit......................................................................................................................................................... 5-4
5-2-1 MAIN PCB.................................................................................................................................................... 5-4
5-2-2 INVERTER PCB ........................................................................................................................................... 5-5
5-2-3 EMI PCB........................................................................................................................................................ 5-6
5-2-4 Heater PCB ................................................................................................................................................. 5-7
6. Wiring Diagram................................................................................................. 6-1
6-1 Indoor Unit............................................................................................................................................................. 6-1
6-2 Outdoor Unit......................................................................................................................................................... 6-2
7. Reference Sheet ................................................................................................ 7-1
7-1 Index for Model Name ...................................................................................................................................... 7-1
7-1-1 Indoor Unit................................................................................................................................................. 7-1
7-1-2 Outdoor Unit............................................................................................................................................. 7-2
7-1-3 Panel............................................................................................................................................................. 7-3
7-2 Refrigerating Cycle Diagram .......................................................................................................................... 7-4

Precautions
Samsung Electronics 1-1
1. Precautions
1-1 Precautions for the Service
O Use the standard parts when replacing the electric parts.
– Confirm the model name, rated voltage, rated current of the electric parts.
O When repairing the equipment, connection of the harness parts must be firm and solid.
– A loose connection may cause noise or other malfunction.
O When assembling and disassembling the equipment while it is laid down, lay it on soft cloth.
– Otherwise it may scratch the back of the exterior of the product.
O Remove dust or dirt completely from the housing block, wiring block and service parts during repair.
– This helps prevent the danger of fire caused by tracking or short circuit.
O Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches.
O Check the status of the components’ assembly after repair service.
– The status must be the same as before the repair service.
1-2 Precautions related to static electricity and PL
OThe PCB power supply block is susceptible to static electricity. Therefore, care must be taken during repair or measuring
while the power is on.
– Wear insulation gloves for PCB repair or measuring.
OCheck whether the installation location is at least two meters away from other electronic products such as TV, video, or
audio.
– Otherwise, the video quality might be degraded or noise might be generated.
ODo not let end users repair the products themselves.
– Unauthorized disassembly might cause electric shock or fire.

Precautions
1-2 Samsung Electronics
1-3 Precautions related to product safety
O Do not pull the power cord and do not touch the power plug or aux power switch with wet hands.
– It might cause electric shock or fire.
O A damaged power line or power plug must be replaced to prevent danger.
O Do not bend the power cable with excessive force, and do not place a heavy weight on the case as it might damage the
cable.
– It might cause electric shock or fire.
O Do not use multiple electric outlets.
– This might cause electric shock or fire.
O Connect the ground terminal when necessary.
– You must connect the ground terminal if you determine that there is a danger of electric leakage due to moisture or water.
O Unplug the power cable or turn off the auxiliary power switch for electric part replacement and repair service.
– Otherwise it might cause electric shock.
O Instruct end users to separate the batteries from the remote controllers and store them separately when the product is not
used for long time.
– Otherwise leakage from the dry cell may cause problems with the remote controller.
1-4 Other precautions
OThe pipes should have no leaks during installation, and the compressor must be stopped before removing connecting
pipes for pump down work. Operating the compressor while the service valve is open and coolant pipe is not properly
connected may cause explosion or injury due to abnormal high pressure created inside the coolant cycle as the air can be
absorbed through the pipe.
OPump Down work procedure (When uninstalling the product)
– Turn on the air conditioner, select cooling operation, and run the compressor for more than three minutes.
– Release the high pressure and low pressure valve caps.
– Close the high pressure valve completely using an L-wrench
– After about two minutes, close the low pressure valve completely.
– Stop running the air conditioner.
– Separate the connecting pipe.

Product Specifications
Samsung Electronics 2-1
Q Convenient and efficient installation
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The panel structure with four corners that can be separated enables
convenient installation and service as only the required corner can
be separated to adjust leveling when necessary.
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with a resolution of 0.1°C
The equipment operates with minimum power to maintain the
optimum temperature and it always maintains a pleasant room
temperature in small temperature steps of 0.1°C that you may
not be able to sense.
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A filter that obviates the need for replacement and/or
maintenance up to 1,000~2,000 hours and retains its initial
cleanness.
[Comparison of weights with other companies 11kg]
HAUZEN Other companies
Weight
20Kg
17kg
35%
29kg
[Comparison of weights with other companies 11kg]
4".46/(
20kg
2. Product Specifications
2-1 The Feature of Product
2°C
1°C
Setting
temperature
-1°C
-2°C
Smart inverter air conditioner General air conditioner
Four-direction cassette with powerful three-dimensional cooling and heating from
four directions offers gapless pleasant environment and has the right design for high
class interior and will provide an extra-stylish look.
2-1-1 Features
Q What is four-direction cassette type air conditioner?
Stylish design and pleasant cooling/heating will provide a pleasant ambience.

Product Specifications
2-2 Samsung Electronics
Q Rich and pleasant cooling/heating without gaps
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The equipment achieves a stable heating performance with the
superior reliability of low temperature heating so that the indoor
unit blows air of 40°C or higher in a cold winter when the outside
temperature is below -20°C.
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A check valve is installed to prevent condensed water drained from the indoor unit flowing back into the indoor unit
for various reasons such as improper drain pipe installation or power cut, and indoor leak or bad smell by backflow
is fundamentally blocked.
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reduces temperature variation
Room temperature sense condition can be set to
‘Indoor + average of wired remote controller’ to minimize the
variation in temperature between the upper and lower levels
generated by the effects of indoor air flow so that optimum
room temperature will be maintained.
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the threat of mildew.
The equipment is very sanitary as an indoor heat exchange unit
and filters are treated with world-recognized sterilization treatment
technology to prevent the growth of mildew inside the unit.
15℃
0℃
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(Patent number: Korea P-082555/ Italy 1294250/USA 5947
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control function
When the unit is installed indoors, air flow can be set to
reach the floor through the PCB option so that the unit can
be installed on a ceiling with a height of 3.5 meters.
[When installing on a ceiling
of 3m or higher]
[When installing on a ceiling
of 3m or lower]
m7.2
m5.3
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-20°C

Product Specifications
Samsung Electronics 2-3
Q Convenience with more added details
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Other products require you to disassemble and remove the panel
in order to clean the blade, but our product is designed so that the
blade safely and easily detaches and re-attaches, enabling you to
easily clean it.
Q Rich and pleasant cooling/heating without gaps (cont.)
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inconvenience in case of malfunction
If the indoor unit malfunctions due to equipment failure
during operation, the type of problem can be checked from
the panel display, and the service time and inconvenience can
be minimized by submitting a service request based on the
information from the self diagnostics of indoor unit.
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The high head pump is built into the indoor unit and the
condensed water generated during the cooling operation will
be drained to the outside. The pumping height can be up to
750mm so that drain pip installation can be easier and save
time and cost of installation.
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- Capable of realizing optimal air current in accordance to
customer preference and diverse structures located in
different directions through individual control of each of the
4 blades.
- Individual control can be realized through both cable and
wireless remote control.

Product Specifications
2-4 Samsung Electronics
2-2 Product Specifications
Item
Development Model
AC030JN4DCH
AC030JXSCCH
AC36JN4DCH
AC036JXSCCH
Design
Indoor Unit
Outdoor Unit
Remote Controller
Performance Cooling [Btu/h] 13,000/30,000/36,000 14,000/36,000/42,000
Heating [Btu/h] 11,000/32,000/39,000 12,000/40,000/48,000
Power
Consumption
Cooling [W] 870/2,290/3,200 930,2,790/3,600
Heating [W] 720/,2,440/5,000 720/3,220/5,000
EER/COP Cooling [Btu/hW] 13.1 12.9
Heating [Btu/hW] 13.1 12.4
Voltage / Frequency 1Φ, 208-230V/60Hz 1Φ, 208-230V/60Hz
Operating Current Cooling [A] 4.8/11.0/14.0 4.8/13.4/17.0
Heating [A] 3.7/11.6/22.5 3.7/15.4/23.0
Noise Indoor Unit [dBA] 47/47 50/50
Outdoor Unit [dBA] 60/62 60/62
Size
Net Dimension
(WxHxD)
Indoor Unit [mm] 840*288*840
Outdoor Unit [mm] 940*1420*330
Shipping Dimension
(WxHxD)
Indoor Unit [mm] 898*357*898
Outdoor Unit [mm] 995*1598*426
Weight
Net Indoor Unit [kg] 19.0
Outdoor Unit [kg] 96.0
Shipping Indoor Unit [kg] 22.0
Outdoor Unit [kg] 106.0
Harness
Specifications
Indoor Fan Motor DB31-00577A
Compressor UG5T450FUEJX
Outdoor Fan Motor DB31-00579A
Piping High Pressure 3/8"
Low Pressure 5/8"
PANEL PC4NUSKFN
Refrigerant Type R410A
Factory Charging [g] 2900
Additional Refrigerant (Over 5m, for every 5m) [g] 25
Basic Piping Length [m] 7.5
Max. Piping Length [m] 75
Max. Level Difference [m] 30
Option Code
0140EF-1950E8-275A64 -370045
020000-100000-200000-300000
033E39-103B45-200000-300000
0140EF-195439-276470 -370045
020000-100000-200000-300000
03453F-102B35-200000-300000

Product Specifications
Samsung Electronics 2-5
Item Description $PEF/P Q’ty Remark
ASSY DRAIN-HOSE JOINT DB94-03287A 1
Indoor Unit
CABLETIE DB65-10088C 6
INSULATION-DRAIN HOSE DB62-11028A 1
INSULATION-HOSE F DB62-11028J 1
INSULATION-HOSE E DB62-11028H 1
CARD WARRNATY DB68-01675A 1
RUBBER LEG DB73-20134A 4
Outdoor Unit
MANUAL INSTALL DB68-05462A 1
BOLT-FLANGE 6011-003975 4
Panel
MANUAL INSTALL DB68-03683A 1
CARD WARRNATY DB68-01675A 1
2-3 Specifications of optional items
2-3-1 Accessories

Product Specifications
2-6 Samsung Electronics
Item Descriptions $PEF/P Q'TY Remark
Wireless remote controller DB93-14643F 1
Optional
Batteries for remote controller
(specification: AAA type) 4301-000121 2
Remote controller holder DB61-06087A 1
M4×16 screw 6002-000581 2
User’s manual DB68-04667A 1
Accessories (cont.)
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Product Specifications
Samsung Electronics 2-7
Accessories (cont.)
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Item Descriptions $PEF/P Q'TY Remark
Wired remote controller DB93-11251F 1
Optional
Cable tie DB65-10088B 2
Cable clamp DB65-10074E 3
M4×16 Screw 6002-000474 5
User’s manual DB68-03732A 1
Installation guide DB68-03716A 1

Product Specifications
2-8 Samsung Electronics
Accessories (cont.)
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Item Descriptions $PEF/P Q'TY Remark
Central controller DB93-03425Q 1
Optional
Cable tie DB65-10088B 2
Cable clamp DB65-10074E 5
M4 X 16 Screw 6002-000474 7
User’s manual DB68-03736A 1
Installation guide DB68-03721A 1

Product Specifications
Samsung Electronics 2-9
2-3-2 Filter specifications
Item Descriptions $PEF/P Remark
Dust filter DB63-03158A Basic/
Water wash

Disassembly and Reassembly
Samsung Electronics 3-1
Item Remarks
+SCREW DRIVER
Adjustable Wrench
(8mm, 10mm, 13mm)
M6, M8 Hex Wrench
Q/FDFTTBSZ5PPMT
3. Disassembly and Reassembly

Disassembly and Reassembly
3-2 Samsung Electronics
/P Parts Procedure Remark
1 Panel 1) Push the handles on both sides of the
Samsung logo towards the product’s interior
to open the Grille.
2) Push up the green knob in the Open
direction, and detach the white link from
the panel. Detach the safety clip.
3) Remove the 2 fixed screws to remove the
Control-Box Cover. (Use +Screw Driver)
4) Remove the Remocon-Receiver and Blade
Connector Wire from the PBA. (3EA)
5) Push the 4 panel corners and cover
downwards to remove it.
3-1 Indoor unit

Disassembly and Reassembly
Samsung Electronics 3-3
/P Parts Procedure Remark
6) Disassemble the bolts that are assembled
with the indoor unit at the 4 panel corners.
7) Press the Steel Hangers at both sides of the
panel inwards, and rotate them 90 degrees
to remove it from the indoor unit’s Hock.
Remove the panel from the indoor unit.
2 Control-Box 1) Disconnect the Connector Wire that is
connected to the indoor unit’s PBA from
the PBA.
2) Unscrew the 2 fixed screws on both
sides of the Control Box, and disassemble
the Control Box from the indoor unit.
(Use +Screw Driver)

Disassembly and Reassembly
3-4 Samsung Electronics
/P Parts Procedure Remark
3 Bell-Mouth 1) Unscrew the screw fixed on the Bell-Mouth.
(Use +Screw Driver)
2) Push the Bell-Mouth in the direction
opposite to where it’s installed on the
Control-Box to remove it.
4 Drain Pan 1) Unscrew the screws on the 4 corners
of the indoor unit. (Use +Screw Driver)
2) Remove the Drain Pan from the indoor unit.

Disassembly and Reassembly
Samsung Electronics 3-5
/P Parts Procedure Remark
5 Drain Pump
&
Hose
1) Remove the 2 fixed screws and
disconnect the white drainage hose from
the Drain Pump. (Use +Screw Driver)
2) Remove the 2 screws and take the
Drain-Hose out from the indoor unit to
disassemble the transparent Drain-Hose
fixed on the side of the indoor unit.
(Use +Screw Driver)
6 Evap.
Temperature
Sensor
1) Use your hand to remove the temperature
sensor attached to the Evap Pipe along with
the fixing clip.

Disassembly and Reassembly
3-6 Samsung Electronics
/P Parts Procedure Remark
7 Fan
&
Motor
1) Turn the hexangular nut attached to the
top of the Fan counterclockwise to remove it.
Take the Fan out of the Motor.
2) Turn the three hexangular nuts on the
Motor counterclockwise to remove the nuts.
Take the Motor Wires attached to these
three locations out with your hands prior to
removing the Motor.
8 Evaporator 1) Remove the screws of the 2 Steel Holder
Evaps that are used to fix the Heat Exchanger,
and then remove it. (Use +Screw Driver)
2) Remove the 2 fixing screws of the Partition
Evap at the Heat Exchanger’s In/Out Pipe.
(Use +Screw Driver)