Samsung AM040FXMDEH User manual

Refer to the service manual in the GSPN(see the rear cover) for the more information.
AIR CONDITIONER CONTENTS
SYSTEM AIR CONDITIONER
OUTDOOR UNIT
AM040FXMDEH
AM050FXMDEH
AM060FXMDEH
AM040FXMDGH
AM050FXMDGH
AM060FXMDGH
AM060KXMDGH
AM040KXMDEC
AM050KXMDEC
ŶProduct Specifications
ŶDisassembly and Reassembly
ŶTroubleshooting
ŶPCB Diagram
ŶWiring Diagram
ŶReference Sheet
ŶCheck Operation & Amount of
Refregent Automatically Checking

Contents
غProduct Specifications
...............................................................................................................
1
1. The Feature of Product
........................................................................................................................
1
1-1 Featres
...........................................................................................................................
1
2. Product Specifications
.........................................................................................................................
7
1غDisassembly and Reassembly
...............................................................................................
11
1غTroubleshooting
............................................................................................................................
30
1. Error Display .......................................................................................................................................... 30
2. Error Code
..............................................................................................................................................
31
3. How to take measures for each symptom
.......................................................................................
32
3-1 Communicaion error between indoor and outdoor units during tracking(Error Code:E201)
.......
32
3-2 Communicaion error between indoor and outdoor units during tracking(Error Code:E202)
.......
33
3-3 Communicaion error (1minute)between Main and Sub Micoms of an Outdoor unit or among
Outdoor Units (Error Code:E203)
.......................................................................................
34
3-4 Outdoor temperature sensor error (Error Code : E221, E231, E251, E269)
.................................
35
3-5 High pressure temperature sensor error (Open/Short) (Error Code : E291)
Low pressure temperature sensor error (Open/Short) (Error Code : E296) ......
36
3-6 Compressor down by antifreeze control (Error Code: E403)
...................................................
37
3-7 Comp. down due to a protective control of high pressure (Error Code : E407)
..........................
38
3-8 Comp. down due to a protective control of low pressureError Code : E410)
.............................
39
3-9 Comp. down due to a discharge temperature sensor of a compressor (Error Code : E416)
..........
40
3-10 Reverse phase detection error (3Phase outdoor unit) (Error Code : E425)
...............................
41
3-11 ESC EEV open error (Error Code : E438)
..............................................................................
42
3-12 Refrigerant leakage error (Error Code : E439)
......................................................................
43
3-13 Prohibition of the compressor operation due to outdoor temperature (Error Code : E440, 441)
.....
44
3-14 Refrigerant leakage error (during operation) (Error Code : E443)
..............................................
44
3-15 Outdoor unit fan error (Error Code : E458, 475)
.....................................................................
45
3-16 Comp down due to OLP temperature control (Error Code : E463)
............................................
46
3-17 Compressor starting/rotation error (Error Code : E461, E467)
..................................................
47
3-18 Current error / PFC overload error (Error Code : E462, E484)
....................................................
49
3-19 IPM over current error (Error Code : E464)
..........................................................................
50
3-20 DC-Link voltage under/over error (Error Code : E466)
..........................................................
53
3-21 Gas leak error (Error Code : E554)
......................................................................................
55
3-22 Others
..........................................................................................................................
57
1غPCB Diagram
.....................................................................................................................................
58
1غWiring Diagram
..............................................................................................................................
64
1غReference Sheet
..............................................................................................................................
66
1. Refrigerant cycle diagram
...................................................................................................................
66
2. Nomenclature
......................................................................................................................................
67
1غCheck Operation & Amount of Refrigerant Automatically Checking
.......
68
1. Check Operation
...................................................................................................................................
68
1-1 Check Operation
.............................................................................................................
68
1-2 How to trouble of the "Undetermined"
...............................................................................
69
1-3 Automatic Commissioning Error Code
................................................................................
76
2. Amount of Refrigerant Automatically Checking
...........................................................................
77

2Samsung Electronics
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
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
غProduct Specifications
1. The Feature of Product
1-1 Feature
QHigh efficient heat exchanger
High efficient G-Fin & epoxy acrylic coating has increased heat transfer and hydrophilicity on heat exchanger.
QStructure of outdoor unit

Product Specifications
Samsung Electronics 3
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.)
QOptimized cooling/heating and increased system efficiency! Liquid EEV & Turbo Inter-cooler
 t-JRVJE&&7GPSJODSFBTFEFGGJDJFODZPGUIFTZTUFN
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.
 t5VSCP*OUFSDPPMFS
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.
QApplication of wide fin
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
4Samsung Electronics
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
Level
dierence
between
indoor units
15m
High level
dierence
50m
Long piping
175m
(Equivalent length)
Feature (cont.)
QReinforced corrosion resistance on the heat exchanger
To prevent corrosion of the products which is installed in saline area, corrosion resistance has been reinforced.
QLong piping/High level difference technology
Longest piping length is allowed up to 175m (equivalent length) and Maximum 50m of level difference is allowed for more flexible
installation.

Product Specifications
Samsung Electronics 5
Operation
time
12 hours of silent mode6 hours
7 : 00 13 : 30 19 : 00 7 : 00
End
Highest temperature
※ 3 month worth of data can be saved
when memory module is installed
Black box function of the Main PCS
Feature (cont.)
QMemory module
 t"DIJFWFTXPSMEDMBTTFGGJDJFODZXJUIIZQFSDPNQSFTTPSUIBUBQQMJFTEPVCMFDPNQSFTTJPOUFDIOPMPHZ
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.)
QSilent operation at nighttime
tWhen outdoor unit needs to operate more silently during nighttime, silent mode can be set from the outdoor unit option mode.
tSilent mode can be adjusted in 3 levels depending on the level of noise.

Product Specifications
6Samsung Electronics
QRefrigerant pump-down
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.)
QSystem check through View mode
tThrough the window on outdoor unit PCB display, you can check the main system data during operation.
tShortened maintaining and inspection
tDisplaying 15 main data including high pressure of system
- Outdoor temperature
- Discharge temperature of the compressor
- Condensing temperature
tUsing the DIP switch on the outdoor unit PCB, you can limit the running current of the system

Product Specifications
Samsung Electronics 7
Feature (cont.)
Conventional
* For models with 9kW or larger (Flare type connection)
QConvenient product installation
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
QMaximum 9 indoor unit connection
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.

8Samsung Electronics
Type
Performance HP 4HP 5HP 6HP
Model AM040FXMDEH AM050FXMDEH AM060FXMDEH
Power Supply(Φ/V/Hz) 1,220-240,50 1,220-240,50 1,220-240,50
Mode HP HP HP
Performance Cooling kW 12.1 14.0 15.5
Heating kW 13.5 16.0 18.0
Power
Running Current
Cooling*A 14.0 17.8 21.0
Heating*A 15.1 17.2 20.2
Input
Cooling*W 2890 3680 4310
Heating*W 3020 3610 4390
Power Breaker(MCCB/ELB) A 30 30 40
Compressor
Type - Twin BLDC Inverter Twin BLDC Inverter Twin BLDC Inverter
Piston cc/REV 43.0 43.0 43.0
Output W - - -
Lubricant Type - POE POE POE
Charging cc 1,700 1,700 1,700
Refrigerant Type - R410A R410A R410A
Factory Charging kg 3.2 3.2 3.3
FAN
Type - Propeller Fan Propeller Fan Propeller Fan
Motor Output W 125x2 125x2 125x2
Airow rate CMM 95 (C) / 100 (H) 95 (C) / 100 (H) 95 (C) / 100 (H)
Pipe
Piping connections Liquid ø,mm 9.52 9.52 9.52
Gas ø,mm 15.88 15.88 19.05
Installation Limitation
Max. Length M 300 300 300
Length M 150 150 150
Max. Height M 50 50 50
Cable Main Power(Below/about 20m) mm CV 2.5/4.0 CV 2.5/4.0 CV 4.0/6.0
Communication mm VCTF 0.75~1.5 VCTF 0.75~1.5 VCTF 0.75~1.5
Set Size
Net weight Kg 100 100 103
Shipping Weight Kg 105 105 108
Net dimension(WxHxD) mm 940x1,210x330 940x1,210x330 940x1,210x330
Shipping dimension(WxHxD) mm 995x1,338x426 995x1,338x426 995x1,338x426
Operating
Temp. Range
Cooling °C -5~48 -5~48 -5~48
Heating °C -20~26 -20~26 -20~26
Maximum of connected indoor units 6 8 9
*Rated Power/Current using Ducted indoor units
2. Product Specifications

Product Specifications
Samsung Electronics 9
Type
Performance HP 4HP 5HP 6HP
Model AM040FXMDGH AM050FXMDGH AM060*XMDGH
Power Supply(Φ/V/Hz) 3,380-415,50 3,380-415,50 3,380-415,50
Mode HP HP HP
Performance Cooling kW 12.1 14.0 15.5
Heating kW 13.5 16.0 18.0
Power
Running Current
Cooling*A 4.8 6.2 7.3
Heating*A 5.0 6.0 6.9
Input
Cooling*W 2890 3680 4310
Heating*W 3020 3610 4390
Power Breaker(MCCB/ELB) A 30 30 40
Compressor
Type - Twin BLDC Inverter Twin BLDC Inverter Twin BLDC Inverter
Piston cc/REV 43.0 43.0 43.0
Output W - - -
Lubricant Type - POE POE POE
Charging cc 1,700 1,700 1,700
Refrigerant Type - R410A R410A R410A
Factory Charging kg 3.2 3.2 3.3
FAN
Type - Propeller Fan Propeller Fan Propeller Fan
Motor Output W 125x2 125x2 125x2
Airow rate CMM 95 (C) / 100 (H) 95 (C) / 100 (H) 95 (C) / 100 (H)
Pipe
Piping connections Liquid ø,mm 9.52 9.52 9.52
Gas ø,mm 15.88 15.88 19.05
Installation Limitation
Max. Length M 300 300 300
Length M 150 150 150
Max. Height M 50 50 50
Cable Main Power(Below/about 20m) mm CV 2.5/4.0 CV 2.5/4.0 CV 4.0/6.0
Communication mm VCTF 0.75~1.5 VCTF 0.75~1.5 VCTF 0.75~1.5
Set Size
Net weight Kg 100 100 103
Shipping Weight Kg 105 105 108
Net dimension(WxHxD) mm 940x1,210x330 940x1,210x330 940x1,210x330
Shipping dimension(WxHxD) mm 995x1,338x426 995x1,338x426 995x1,338x426
Operating
Temp. Range
Cooling °C -5~48 -5~48 -5~48
Heating °C -20~26 -20~26 -20~26
Maximum of connected indoor units 6 8 9
*Rated Power/Current using Ducted indoor units

Product Specifications
10 Samsung Electronics
Type
Performance HP 4HP 5HP
Model AM040KXMDEC/TL AM050KXMDEC/TL
Power Supply(Φ/V/Hz) 1,220-240,50 1,220-240,50
Mode Cooling Cooling
Performance Cooling
kW 11.0 14.5
Heating kW - -
Power
Running Current Cooling* A
17.5 19.5
Heating* A --
Input Cooling* W
3600 4000
Heating* W --
Power Breaker(MCCB/ELB) A 30 30
Compressor
Type - Twin BLDC Inverter Twin BLDC Inverter
Piston cc/REV 43.0 43.0
Output W - -
Lubricant Type - POE POE
Charging cc 1700 1700
Refrigerant Type - R410A R410A
Factory Charging kg 2.0 2.0
FAN
Type - Propeller Fan Propeller Fan
Motor Output W 125 125
Airow rate CMM 64 64
Pipe
Piping connections Liquid ø,mm 9.52 9.52
Gas ø,mm 15.88 15.88
Installation Limitation
Max. Length M 150 150
Length M 70 70
Max. Height M 30 30
Cable Main Power(Below/about 20m) mm CV 2.5/4.0 CV 2.5/4.0
Communication mm VCTF 0.75~1.5 VCTF 0.75~1.5
Set Size
Net weight kg 76 7976
Shipping Weight kg 79 79
Net dimension(WxHxD) mm 940×998×330 940×998×330
Shipping dimension(WxHxD) mm 1009×1084×419 1009×1084×419
Operating
Temp. Range
Cooling °C -5~52 -5~52
Heating °C - -
Maximum of connected indoor units 6 8
*Rated Power/Current using Ducted indoor units

Samsung Electronics 11
QNecessary Tools
غDisassembly and Reassembly
Item Remark
+Screw Driver
Monkey Spanner
–Screw Driver
Nipper
Electric Motion Driver
L-Wrench

Disassembly and Reassembly
12 Samsung Electronics
No Parts Procedure Remark
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
in the Cabinet-Install Front.
(Use +Screw Driver)
QAM040FXMDEH, AM050FXMDEH, AM060FXMDEH, AM040FXMDGH, AM050FXMDGH, AM060FXMDGH

Disassembly and Reassembly
Samsung Electronics 13
No Parts Procedure Remark
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)

Disassembly and Reassembly
14 Samsung Electronics
No Parts Procedure Remark
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)

Disassembly and Reassembly
Samsung Electronics 15
No Parts Procedure Remark
8 Fan 1) Turn 2 mounting nuts as shown in the
picture and remove it.
(Use L Wrench or Monkey
Spanner or Socket Wrench )

Disassembly and Reassembly
16 Samsung Electronics
No Parts Procedure Remark
9 Motor 1) Separate the Fan Propeller.
2) Unscrew and remove the 8 Motor mounting
screws. (Use +Screw Driver)
3) Disconnect the Motor wire from
Ass’y Control Out.
10 Bracket Motor 1) Unscrew and remove 2 mounting screws in
Bracket Motor. (Use + Screw Driver)

Disassembly and Reassembly
Samsung Electronics 17
No Parts Procedure Remark
11 Control Out 1) Disconnect 9 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.

Disassembly and Reassembly
18 Samsung Electronics
No Parts Procedure Remark
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) Unscrew and remove 2 mounting screws
in Oil Separator. (Use + Screw Driver.)
2) Separate 2 parts of the pipe using a welder.

Disassembly and Reassembly
Samsung Electronics 19
No Parts Procedure Remark
13 Compressor 1) Unscrew and remove 1 mounting
nut in bottom of the cover.
(Use Adjustable Wrench)
2) Separate the Compressor Felt.
3) As shown in the picture, unscrew and
remove 3 mounting screws from the bottom.
(Use L-Wrench or Monkey Spanner or
Socket Wrench)