Samsung AM036TXMDCH User manual

Referto the service manual in the GSPN(see the rearcover) forthe more information.
AIR CONDITIONER CONTENTS
ƊǽƊƟkđÃŵAĮĘUÃƟÃĮĘkŵ
OUTDOOR UNIT
AM036TXMDCH
AM048TXMDCH
AM053TXMDCH
1. Product Specifications
2. Disassembly and Reassembly
3. Troubleshooting
4. PCB Diagram
5. Wiring Diagram
6. Reference Sheet
7. Check Operation & Amount of
Refrigerant Automatically Checking

Samsung Electronics 1
Contents
1. Product Specifications.................................................................................................................. 3
1-1. The Feature of Product ............................................................................................................................... 3
1-1-1 Feature........................................................................................................................................................................3
1-2. Product Specifications................................................................................................................................ 9
2. Disassembly and Reassembly....................................................................................................11
3 Troubleshooting .......................................................................................................................... 21
3-1. Error Display ...............................................................................................................................................21
3-2. Error Code .................................................................................................................................................. 22
3-3. How to take measures for each symptom ............................................................................................ 25
3-3-1 Communication error between indoor and outdoor units during tracking (Error Code : E201) ...........25
3-1-2 Communication error between indoor and outdoor units after completing tracking
(Error Code : E202)................................................................................................................................................26
3-3-3 Communication error (1 minute) between Main and Sub Micoms of an Outdoor unit or
among Outdoor Units (Error Code : E203) .......................................................................................................27
3-3-4 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts...................28
3-3-5 MCU branch part setup error – Repeated setup for the same address over 3 times.............................29
3-3-6 MCU branch part setup error – non-installed address setup..................................................................... 30
3-3-7 Communication error (1 minute) between Main and Sub Micoms of an Outdoor unit or
among Outdoor Units(Error Code : E203)........................................................................................................ 31
3-3-8 MCU branch part setup error – Overlapping Indoor unit Address setup..................................................32
3-3-9 MCU branch part setup error – Set as being used without connection to an Indoor unit ....................33
3-3-10 MCU branch part setup error – Connect an Indoor unit to a branch part not being used.................. 34
3-3-11
MCU branch part setup error – Connect more Indoor units than what is actually set up in MCU .............35
3-3-12 MCU/MCU subcooler entrance/exit sensor error (Open/Short) ...............................................................36
3-3-13 Outdoor temperature sensor error(Open/Short)
(Error Code : E221, E231, E251, E269, E276, E311 E321, E322, E323) ..........................................................37
3-3-14 High pressure temperature sensor error (Open/Short) (Error Code : E291)
Low pressure temperature sensor error (Open/Short) (Error Code : E296).......................................... 38
3-3-15 Compressor down by antifreeze control (Error Code: E403).....................................................................39
3-3-16 Comp. down due to a protective control of high pressure (Error Code : E407) .................................... 40
3-3-17 Comp. down due to a protective control of low pressure (Error Code : E410) .......................................41
3-3-18 Comp. down due to a discharge temperature sensor of a compressor (Error Code : E416)................42
3-3-19 Reverse phase detection error (3Phase outdoor unit) (Error Code : E425)............................................ 43
3-3-20 ESC EEV open error (Error Code : E438)........................................................................................................ 44
3-3-21 Refrigerant leakage error (Error Code : E439) ............................................................................................. 45
3-3-22 Prohibition of the compressor operation due to outdoor temperature
(Error Code : E440, 441).................................................................................................................................... 46
3-2-23 Refrigerant leakage error (during operation) (Error Code : E443).......................................................... 46
3-3-24 Outdoor unit fan error (Error Code : E458, 475 ) ..........................................................................................47
3-3-25 Comp down due to OLP temperature control (Error Code : E463).......................................................... 48
3-3-26 Compressor starting/rotation error (Error Code : E461, E467) ................................................................ 49
3-3-27 Current error / PFC overload error (Error Code : E462, E484)................................................................... 51
3-3-28 IPM over current error (Error Code : E464) ...................................................................................................52
3-3-29 DC-Link voltage under/over error (Error Code : E466)...............................................................................55
3-3-30 Others ...................................................................................................................................................................57

2Samsung Electronics
Contents
4. PCB Diagram ...............................................................................................................................58
4-1. Outdoor Unit PCB...................................................................................................................................... 58
4-1-1 Main PCB................................................................................................................................................................. 58
4-1-2 Inverter PCB : 1Phase........................................................................................................................................... 60
4-1-3 EMI PCB : 1Phase.................................................................................................................................................... 61
5. Wiring Diagram........................................................................................................................... 62
6. Reference Sheet..........................................................................................................................63
6-1. Refrigerant cycle diagram ....................................................................................................................... 63
6-2. Nomenclatures.......................................................................................................................................... 64
6-2-1 OUTDOOR UNIT..................................................................................................................................................... 64
7. Check Operation & Amount of Refrigerant Automatically Checking ..................................65
7-1. Check Operation ........................................................................................................................................ 65
7-1-1 Check Operation .....................................................................................................................................................65
7-1-2 How to troubleshoot of the "Undetermined"...................................................................................................67
7-1-3 Automatic Commissioning Error Code..............................................................................................................73
7-2. Automatic refrigerant amount detection function (Checking th amount of refrigerant) ............ 74

Samsung Electronics 3
Company A
Company A
Diameter Ø8 Ø7
Heat transfer surface area 19%
Evaporation 14.1%
Condensation 10.3%
Internal heat transfer performance
30.8%
Pressure resistance Same
ᇉᇉ
ᇉ
Pressure
loss in heat
exchanger
²˝˵ʪ˙˙ʀʪϩ˵ʪɇϩʪуʀ˵ɇ˝ʪθ
High efficient G-Fin & epoxy acrylic coating has increased heat transfer and hydrophilicity on heat exchanger.
High performance BLDC fan motor
Cross section of a Turbo Inter-cooler
䭓33% more ecient compare to AC motor
䭓Wide speed control range, less noise
generation
Turbo Inter-cooler
䭓Long piping up to 175m with sub-cooling
䭓Up to 50m levela dierence is allowed for
installation
Twin BLDC compressor
䭓Increased energy eciency
compare to conventional compressor
䭓Stable operation with 80%
decreased vibration
Anti-chloride coated outdoor unit
heat exchanger
䭓Anti-corrosion /erosion G-Fin
provide stable heat exchanging
performanceation
High ecient propeller fan
䭓Reduced noise on outdoor
unit
䭓Improved heat exchange
rate
ƊϩθЇʀϩЇθʪͱ˙ͱЇϩʒͱͱθЇϩ
1. Product Specifications
1-1. The Feature of Product
1-1-1 Feature

Product Specifications
4Samsung Electronics
20 30 40 0
2
4
8
10
12
0.00
0.08
0.04
0.12
0.24
0.16
Amount of transferred heat (kW/m)
Refrigerant ow (Kg/h)
Increased by 30.8%
Decreased by 14%
Pressure loss (kPa/m)
Ø7 Groove Ø8 High Groove
New Ø7 wide n
Ø7 wide n
Heat transfer
amount
15%
New Ø8 wide n
Ø8 Fin
Heat transfer
amount
15%
Feature (cont.)
ĮΧϩіʪʒʀͱͱ˝ࢥ˵ʪɇϩ˝ɇʒʀθʪɇϑʪʒϑцϑϩʪʪ˙˙ʀʪʀц࡭øαЇʒkkǤƟЇθɵͱÃϩʪθࣗʀͱͱʪθ
࡙øαЇʒkkǤ˙ͱθʀθʪɇϑʪʒʪ˙˙ʀʪʀцͱ˙ϩ˵ʪϑцϑϩʪ
• Through Liquid EEV, controlling of valve opening has become more efficient and it achieved optimized system efficssiency and
minimized noise from the refrigerant in the indoor unit.
࡙ƟЇθɵͱÃϩʪθࣗʀͱͱʪθ
• High performing shell & tube type heat exchanger has been applied to secure cooling/heating efficiency. It has secured enough
subcooling to acquire reliability on long piping and it also increased cooling/heating efficiency.
ΧΧʀɇϩͱͱ˙иʒʪ˙
High efficient heat exchanger has been applied, therefore it delays the onset of frost formation and increased heat transfer
efficiency.
Sub-cooled
liquid refrigerant
Low temperature
gas refrigerant
Low temperature
liquid refrigerant
Saturated liquid refrigerant
Cross section of the
Turbo inter-cooler
Cross section of the
conventional inter-cooler
*Increased heat transfer area with Shell & Tube type
온도
Temperature
Turbo Inter-cooler

Product Specifications
Samsung Electronics 5
Raw aluminum material
Anti corrosive layer (Epoxy acrylic)
Hydrophilic layer (Acrylic resin + surfactant)
Company A
No corrosion after 1,000 hours of test
Corrosion is evident after 1,000 hours of test
92 󳚥m
2.0 󳚥m
0.3 󳚥m
* Tested by Samsung
Company A
Feature (cont.)
ŵʪ˙ͱθʀʪʒʀͱθθͱϑͱθʪϑϑϩɇʀʪͱϩ˵ʪ˵ʪɇϩʪуʀ˵ɇ˝ʪθ
To prevent corrosion of the products which is installed in saline area, corrosion resistance has been reinforced.
Level
dierence
between
indoor units
15m
High level
dierence
50m
Long piping
175m
(Equivalent length)
øͱ˝ΧΧ˝ࢥ²˝˵ʪЭʪʒ˙˙ʪθʪʀʪϩʪʀ˵ͱͱ˝ц
Longest piping length is allowed up to 175m (equivalent length) and Maximum 50m of level difference is allowed for more
flexible installation.

Product Specifications
6Samsung Electronics
※ 3 month worth of data can be saved
when memory module is installed
Black box function of the Main PCS
Feature (cont.)
đʪͱθцͱʒЇʪ
࡙ʀ˵ʪЭʪϑиͱθʒࣗʀɇϑϑʪ˙˙ʀʪʀциϩ˵˵цΧʪθʀͱΧθʪϑϑͱθϩ˵ɇϩɇΧΧʪϑʒͱЇɵʪʀͱΧθʪϑϑͱϩʪʀ˵ͱͱ˝ц
• If outdoor unit malfunction occurs, diagnose and repair of the problem will be much quicker with the last 3 minutes worth of a
data saved before the malfunction. (With the extra memory module, 3 months worth of a data can be saved.)
Operation
time
12 hours of silent mode6 hours
7 : 00 13 : 30 19 : 00 7 : 00
End
Highest temperature
ƊʪϩͱΧʪθɇϩͱɇϩ˝˵ϩϩʪ
• When outdoor unit needs to operate more silently during nighttime, silent mode can be set from the outdoor unit option mode.
• Silent mode can be adjusted in 3 levels depending on the level of noise.

Product Specifications
Samsung Electronics 7
ŵʪ˙θ˝ʪθɇϩΧЇΧࣗʒͱи
If you need to move/replace the outdoor unit or when there are problems on indoor units or on the pipes, outdoor unit will
recover refrigerant remaining on the pipes.
Indoor unit
malfunction
Refrigerant recoveringsss
Feature (cont.)
Ɗцϑϩʪʀ˵ʪʀϩ˵θͱЇ˝˵Ǥʪиͱʒʪ
• Through the window on outdoor unit PCB display, you can check the main system data during operation.
• Shortened maintaining and inspection
• Displaying 15 main data including high pressure of system
• - Outdoor temperature
• - Discharge temperature of the compressor
• - Condensing temperature
• Using the DIP switch on the outdoor unit PCB, you can limit the running current of the system

Product Specifications
8Samsung Electronics
Feature (cont.)
* For models with 9kW or larger (Flare type connection)
Conventional
AͱЭʪʪϩΧθͱʒЇʀϩϑϩɇɇϩͱ
Service valve is not exposed to keep the neat appearance and pipe can be connected in 4 different directions which provide
flexible installation and maintenance services.
Maximum 9 indoor unit connection
đɇуЇߪʒͱͱθЇϩʀͱʪʀϩͱ
You may connect up to 9 indoor units on a single outdoor unit. It will allow more powerful and flexible air conditioning system
and you can select refrigerant pipe length, or number of indoor units depending on the needs for office, commercial and
residential places.

Product Specifications
Samsung Electronics 9
Type
Performance ton 3ton 4ton 4.5ton
Model AM036TXMDCH AM048TXMDCH AM053TXMDCH
ťͱиʪθƊЇΧΧц࣍עࢥǤࢥ²і࣎ 1,208-230,60 1,208-230,60 1,208-230,60
Mode HP HP HP
Performance Cooling 9ϩЇࢥ˵ 38,000 48,000 53,000
²ʪɇϩ˝ 9ϩЇࢥ˵ 42,000 54,000 61,000
Power
Running
Current
Cooling* A 15.0 20.3 25.6
²ʪɇϩ˝ࡐ A16.4 21.3 26.1
Input Cooling* W 3,100 4,200 5,300
²ʪɇϩ˝ࡐ W3,400 4,400 5,400
MCA A 23 29 34
MOP A 40 50 50
Compressor
Type - Twin BLDC Inverter Twin BLDC Inverter Twin BLDC Inverter
Output W 4.04 4.04 4.04
Lubricant Type - PVE PVE PVE
A˵ɇθ˝˝ cc 1700 1700 1700
Refrigerant
Type - R410A R410A R410A
ɇʀϩͱθцA˵ɇθ˝˝ kg 3.2 3.2 3.3
lbs 7.1 7.1 7. 3
FAN
Type - Propeller Fan Propeller Fan Propeller Fan
Motor Output W 125x2 125x2 125x2
Airflow rate
CMM 110 110 110
CFM 3,885 3,885 3,885
ࢥϑ 1,833 1,833 1,833
Pipe
Piping
connections
Liquid ø,mm 9.52 (3/8") 9.52 (3/8") 9.52 (3/8")
Gas ø,mm 15.88 (5/8") 15.88 (5/8") 19.05 (3/4")
Installation
Limitation
đɇуࢋøʪ˝ϩ˵ ࣍˙ϩ࣎ 300 (984) 300 (984) 300 (984)
øʪ˝ϩ˵ ࣍˙ϩ࣎ 150 (492) 150 (492) 150 (492)
đɇуࢋ²ʪ˝˵ϩ ࣍˙ϩ࣎ 50 (164) 50 (164) 50 (164)
Cable
Main Power
࣍9ʪͱиࢥɇɵͱЇϩߣߡ࣎ ߣ CV 2.5/4.0 CV 2.5/4.0 CV 2.5/4.0
Communication ߣ VCTF 0.75~1.5 VCTF 0.75~1.5 VCTF 0.75~1.5
1-2. Product Specifications

Product Specifications
10 Samsung Electronics
Type
Performance ton 3ton 4ton 4.5ton
Model AM036TXMDCH AM048TXMDCH AM053TXMDCH
ƊʪϩƊіʪ
Ęʪϩиʪ˝˵ϩ kg 98 98 101
lbs 216.1 216.1 222.7
Ɗ˵ΧΧ˝Ǯʪ˝˵ϩ kg 108 108 110
lbs 238.1 238.1 242.5
Ęʪϩʒʪϑͱ࣍Ǯу²уU࣎ mm 940 x 1210 x 330 940 x1210 x 330 940 x1210 x 330
ʀ˵ 37.01 x 47.64 x 12.99 37.01 x 47.64 x 12.99 37.01 x 47.64 x 12.99
Ɗ˵ΧΧ˝ʒʪϑͱ࣍Ǯу²уU࣎ mm 995 x 1388 x 426 995 x 1388 x 426 995 x 1388 x 426
ʀ˵ 39.17 x 54.65 x 16.77 39.17 x 54.65 x 16.77 39.17 x 54.65 x 16.77
Operating
Temp. Range
Cooling ঔ23 ~ 118 23 ~ 118 23 ~ 118
²ʪɇϩ˝ ঔ -13 ~ 75 -13 ~ 75 -13 ~ 75
Maximum of connected indoorunits 8910
*Rated Power/Current using Ducted indoor units

Samsung Electronics 11
2. Disassembly and Reassembly
ĘʪʀʪϑϑɇθцƟͱͱϑ
Ãϩʪ ŵʪɇθ
+Screw Driver
Monkey Spanner
–Screw Driver
Nipper
Electric Motion Driver
L-Wrench

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
12 Samsung Electronics
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
1 Cabi Front RH You must turn off the Power before
disassembly.
1) Unscrew and remove 2 mounting screw in
the Cabinet Front RH. (Use + Screw Driver)
2 Cabi Top 1) Unscrew and remove 9 screws on each side
of the Cabinet-Top. (Use +Screw Driver)
3 Cabi Install Front 1) Unscrew and remove 1 screw the Cabinet-
Install Front. (Use +Screw Driver)
đߡߤߧƟǹđUA²ࡡđߡߥߩƟǹđUA²ࡡđߡߦߤƟǹđUA²

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
Samsung Electronics 13
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
4 Guard Cond 1) Pull the sensor from Guard Cond.
2) Unscrew and remove 4 screws in the Guard
Cond. (Use + Screw Driver)
5 Cabi Back RH 1) Pull the sensor from Cabi Back RH.
2) Unscrew and remove 4 screws on each side
of the Cabinet Back RH.
(Use + Screw Driver)

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
14 Samsung Electronics
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
6 Cabi Install Back 1) Unscrew and remove 1 screw in the Cabinet-
Install Back.
(Use +Screw Driver)
7 Cabi Front LF 1) Unscrew and remove 10 screws in the
Cabinet-Front LF.
(Use +Screw Driver)

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
Samsung Electronics 15
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
8 Fan 1) Turn 2 mounting nuts as shown in the and
remove it.
(Use L Wrench or Monkey Spanner or Socket
Wrench )

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
16 Samsung Electronics
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
9 Motor 1) Separate the Fan Propeller.
2) Unscrew and remove the 8 Motormounting
screws. (Use +Screw Driver)
3) Disconnect the Motorwire from Ass’y
Control Out.
10 Bracket Motor 1) Unscrew and remove 2 mounting screws in
Bracket Motor. (Use + Screw Driver)

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
Samsung Electronics 1717 Samsung Electronics
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
11 Control Out 1) Disconnect 10 Connectors from Ass’y control
Out.
2) Unscrew and remove 1 mounting screw in
Control Out. (Use + Screw Driver.)
3) Separate Ass’y Control Out.

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
18 Samsung ElectronicsSamsung Electronics 18
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
12 Ass'y Tube EEV 1) Purge the Coolant first.
2) Separate 2 parts of the pipe using a welder.
When removing the compressor, Heat
Exchanger and Pipe, purge the refrigerant
inside the Compressor completely and
remove the pipe with a welding flame.
13 Ass'y Tube Suction 1) Separate 2 parts of the pipe using a welder.
14 Ass'y Tube 4Way 1) Separate 2 parts of the pipe using a welder.

Uϑɇϑϑʪɵцɇʒŵʪɇϑϑʪɵц
Samsung Electronics 19
Ęͱ ťɇθϩϑ ťθͱʀʪʒЇθʪ ŵʪɇθ
15 Compressor 1) Unscrew and remove1 mounting nut in
bottom of the cover.
(Use Adjustable Wrench)
2) Separate the Compressor Felt.
3) As shown in the picture, unscrew and
r e m o v e 3 m o u n t i n g s c r e w s f r o m t h e b o t t o m .
(Use L-Wrench orMonkey Spanner or Socket
Wrench)