Samsung AM080xXV Series User manual

AIR CONDITIONER CONTENTS
SYSTEM AIR CONDITIONER
OUTDOOR UNIT
AM080/100/120/140/160/180/200/220/240/2606XV666
AM080/100/120/200FXWA666
AM080/100/120/140/160/180/200/220JXVA66
AM140/160/180/200/220/240/260/280/300KXV666
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram and Parts List
6. Wiring Diagram
7. Cycle Diagram
8. Key Options
9. Test Operation

Section 0
Samsung Electronics 1
Contents
1. Precautions.......................................................................................................... 1-1
1-1 Precautions for the Service......................................................................................................................................1-1
1-2 Precautions for the Static Electricity and PL .....................................................................................................1-1
1-3 Precautions for the Safety ........................................................................................................................................1-1
1-4 Precautions for Handling Refrigerant for Air Conditioner ..........................................................................1-2
1-5 Precautions for Welding the Air Conditioner Pipe.........................................................................................1-2
1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant...............................................1-2
1-7 Other Precautions........................................................................................................................................................1-2
2. Product Specifications ....................................................................................... 2-1
2-1 The Feature of Product ..............................................................................................................................................2-1
2-1-1 Feature ...............................................................................................................................................................2-1
2-1-2 Changes in comparison to basic mode................................................................................................2-3
2-1-3 Structure of product(Heat Pump)...........................................................................................................2-9
2-1-4 Structure of product(Heat Recovery)................................................................................................. 2-10
2-1-5 Structure of product(Power supply for 460V, 60Hz, 3Φ)............................................................ 2-11
2-1-6 Structure of product (DVM S WATER)................................................................................................. 2-12
2-1-7 Structure of product (Heat Pump AM666KX6Series)............................................................. 2-13
2-2 Product Specifications ........................................................................................................................................... 2-14
2-2-1 Outdoor Unit ................................................................................................................................................ 2-14
2-3 Accessory and Option Specifications ............................................................................................................... 2-43
2-3-1 Accessories .................................................................................................................................................... 2-43
3. Disassembly and Reassembly ........................................................................... 3-1
3-1 Necessary Tools.............................................................................................................................................................3-1
3-2 Disassembly and Reassembly.................................................................................................................................3-2
3-2-1 AM080/100/120JXV666...........................................................................................................................3-2
3-2-2 AM140FXVAGH, AM140JXV6GH ......................................................................................................... 3-12
3-2-3 AM160/180/200/220/240/2606XV666, AM140JXVA6H........................................................ 3-22
3-2-4 AM080/100/120FXWA66....................................................................................................................... 3-33
3-2-5 AM200FXWA66 ......................................................................................................................................... 3-41
3-2-6 AM140/160KXVG66, AM140/160/180KXVA66........................................................................... 3-48
3-2-7 AM180/200/220KXVG66, AM200/220KXVA66........................................................................... 3-55
3-2-8 AM240/260/280/300KXV666, AM080KXVS66 .......................................................................... 3-63
3-3 Caution at compressor exchange ...................................................................................................................... 3-72
3-4 MCU ................................................................................................................................................................................ 3-77
3-5 EEV KIT ........................................................................................................................................................................... 3-78
4. Troubleshooting.................................................................................................. 4-1
4-1 Check-up Window Description ..............................................................................................................................4-1
4-2 Service Operation........................................................................................................................................................4-2
4-2-1 Special Operation..........................................................................................................................................4-2
4-2-2 DVM S Models EEPROM Code Table ................................................................................................... 4-12
4-2-3 Number Display Method ........................................................................................................................ 4-13
4-3 Appropriate Measures for Different Symptom............................................................................................. 4-18
4-3-1 Outdoor Unit Operation Flow............................................................................................................... 4-17
4-3-2 Main PCB has no power phenomenon ............................................................................................. 4-21
4-3-3 Communication Error between Indoor and Outdoor Units during Tracking.................... 4-22
4-3-4 Communication Error between Indoor and Outdoor Units after Tracking........................ 4-24
4-3-5 Communication error between main and sub Unit of outdoor unit or
between outdoor units............................................................................................................................ 4-25
4-3-6 Internal Communication error of the Outdoor Unit C-Box....................................................... 4-26
4-3-7 Internal PCB Communication error of the Outdoor Unit C-Box.............................................. 4-27
4-3-8 MCU branch part setup error-inconsecutive connection with the use
of 2 branch Parts ......................................................................................................................................... 4-29

Section 0
2Samsung Electronics
Contents
4-3-9 MCU branch part setup error-Repeated setup for the same address over 3 times........ 4-30
4-3-10 MCU branch part setup error-non-installed address setup ................................................... 4-31
4-3-11 Setup Error for MCU Branch part-Setup Error for MCU Quantity Used............................. 4-32
4-3-12 MCU branch part setup error-Overlapping Indoor unit Address setup ........................... 4-33
4-3-13 MCU branch part setup error_Set as being used without connection
to an Indoor unit...................................................................................................................................... 4-34
4-3-14 MCU branch part setup error-Connect an Indoor unit to a branch part
not being used.......................................................................................................................................... 4-35
4-3-15 MCU branch part setup error-Connect more Indoor units than what is
actually set up in MCU........................................................................................................................... 4-36
4-3-16 MCU/MCU subcooler entrance/exit sensor error (Open/Short)........................................... 4-37
4-3-17 Outdoor Temperature Sensor Error.................................................................................................. 4-38
4-3-18 Cond Out Temperature Sensor Error (Open/Short) ................................................................... 4-39
4-3-19 Outdoor Cond Out sensor breakway error ................................................................................... 4-40
4-3-20 Compressor Discharge or TOP 1/2 Temperature sensor error............................................... 4-42
4-3-21 Compressor Discharge or TOP temperature sensor breakway error..................................4-43
4-3-22 E269 : Suction Temperature sensor breakway error ................................................................. 4-44
4-3-23 High Pressure sensor error (Open/Short)....................................................................................... 4-45
4-3-24 Low Pressure sensor error (Open/Short) ........................................................................................ 4-46
4-3-25 Suction Temperature sensor error (Open/Short)........................................................................ 4-47
4-3-26 Liquid Pipe Temperature sensor error (Open/Short).................................................................4-48
4-3-27 EVI In Temperature sensor error (Open/Short) ............................................................................ 4-49
4-3-28 EVI Out Temperature sensor error (Open/Short) ........................................................................4-50
4-3-29 Suction-2 Temperature Sensor Error (Open/Short) ...................................................................4-51
4-3-30 Measures of other outdoor unit error ............................................................................................. 4-52
4-3-31 E407 : Comp. Down due to High Pressure Protection Control ............................................. 4-53
4-3-32 E410 : Comp. Down due to Low Pressure Protection Control............................................... 4-55
4-3-33 E416 : Suspension of starting due to Compressure discharge
temperature sensor/Top temperature sensor................................................................. 4-57
4-3-34 3-phase Input Wiring error................................................................................................................... 4-58
4-3-35 E428 : Suspension of starting by abnormal compression ratio........................................... 4-59
4-3-36 EVI EEV Open error .................................................................................................................................. 4-60
4-3-37 Refrigerant leakage error...................................................................................................................... 4-61
4-3-38 Prevention of heating/cooling operation due to outdoor temperature.......................... 4-62
4-3-39 Prevention of heating refrigerant charge due to outdoor temperature .......................... 4-63
4-3-40 CH wire breaking error........................................................................................................................... 4-64
4-3-41 Fan starting error...................................................................................................................................... 4-66
4-3-42 Fan lock error ............................................................................................................................................. 4-67
4-3-43 Momentary Blackout error ......................................................................................................................... 4-69
4-3-44 Outdoor Fan Motor overheating....................................................................................................... 4-70
4-3-45 Fan IPM Overheat error.......................................................................................................................... 4-71
4-3-46 Compressor starting error.................................................................................................................... 4-72
4-3-47 COMP Overcurrent error ....................................................................................................................... 4-74
4-3-48 Overvoltage/Low voltage error.......................................................................................................... 4-78
4-3-49 DC Link voltage sensor error............................................................................................................... 4-79
4-3-50 Fan Motor Overcurrent error............................................................................................................... 4-80
4-3-51 Input/Output Current sensor error................................................................................................... 4-82
4-3-52 Outdoor Fan PCB Overvoltage/Low voltage error..................................................................... 4-83
4-3-53 Hall IC(Fan) error....................................................................................................................................... 4-84
4-3-54 Inverter Overheat error.......................................................................................................................... 4-85
4-3-55 Option setting error of outdoor unit ............................................................................................... 4-86
4-3-57 Error due to using single type outdoor unit in a module installation............................... 4-87
4-3-57 Indoor unit and MCU address duplication error......................................................................... 4-88

Section 0
Samsung Electronics 3
Contents
5. PCB Diagram and Parts List ............................................................................... 5-1
5-1 ASS'Y PCB MAIN ...........................................................................................................................................................5-1
5-2 ASS'Y PCB MAIN-HUB ................................................................................................................................................5-4
5-3 ASS’Y PCB INVERTER ..................................................................................................................................................5-8
5-4 ASS’Y PCB FAN ........................................................................................................................................................... 5-12
5-5 ASS’Y PCB EMI .......................................................................................................................................................... 5-16
5-6 SUB-COMM ................................................................................................................................................................ 5-19
6. Wiring Diagram ................................................................................................... 6-1
6-1 AM080/100/120/140/160/180/200/220FXV666..........................................................................................6-1
6-2 AM080/100/120/200FXWA66...............................................................................................................................6-3
6-3 AM240/26066XV66.................................................................................................................................................6-5
6-4 AM080JXVAFH...............................................................................................................................................................6-7
6-5 AM100/120JXVAFH .....................................................................................................................................................6-9
6-6 AM140/160/180/200JXVAFH................................................................................................................................ 6-11
6-7 AM080/100/120/140/160/180/200/220JXVAJH........................................................................................... 6-13
7. Cycle Diagram ...................................................................................................................7-1
7-1 AM080/100/1206XV66H........................................................................................................................................7-1
7-2 AM1406XV6GH...........................................................................................................................................................7-1
7-3 AM160/180/200/2206XV66H ..............................................................................................................................7-2
7-4 AM080/100/1206XV6GR.........................................................................................................................................7-2
7-5 AM1406XV6GR............................................................................................................................................................7-3
7-6 AM160/180/200/2206XV6GR ...............................................................................................................................7-3
7-7 AM080/100/120FXWA66........................................................................................................................................7-4
7-8 AM200FXWA66...........................................................................................................................................................7-4
7-9 AM240/260HXVAGH/EU............................................................................................................................................7-5
7-10 AM240/260/280KXVG66, AM280/300KXVA66, AM080KXVS66 ......................................................7-5
7-11 AM180/200/220KXVG66, AM200/220KXVA66 .........................................................................................7-6
7-12 AM140/160KXVG66, AM140/160/180KXVA66 .........................................................................................7-6
7-13 Cooling operation (H/R)..........................................................................................................................................7-6
7-14 Main cooling operation (H/R)...............................................................................................................................7-7
7-15 Heating operation (H/R) .........................................................................................................................................7-8
7-16 Main heating operation (H/R) ..............................................................................................................................7-9
7-17 Cooling operation (H/P)....................................................................................................................................... 7-10
7-18 Heating operation (H/P) ...................................................................................................................................... 7-11
7-19 Cooling operation(H/R) - AM080/100/120/200FXWA66 ..................................................................... 7-12
7-20 Main cooling operation(H/R)............................................................................................................................. 7-14
7-21 Heating operation(H/R) ....................................................................................................................................... 7-15
7-22 Main heating operation(H/R) ............................................................................................................................ 7-16
7-23 Cycle Component Function Explanation...................................................................................................... 7-17
8. Key Options ......................................................................................................... 8-1
8-1 Outdoor unit option switch settings ...................................................................................................................8-1
8-2 How to set the key function of the outdoor unit ...........................................................................................8-4
8-3 How to check the view mode using a tact switch...................................................................................... 8-12
9. Test Operation..................................................................................................... 9-1
9-1 Auto Trial Operation....................................................................................................................................................9-1
9-1-1 Auto Trial Operation Synopsis..................................................................................................................9-1
9-1-2 Auto Trial Operation functions.................................................................................................................9-3
9-1-3 How to troubleshoot of the "Undetermined"....................................................................................9-4
9-2 Amount of refrigerant automatically checking............................................................................................ 9-14
9-3 Model Naming ........................................................................................................................................................... 9-15

Samsung Electronics 1-1
1. Precautions
1-1 Precautions for the Service
OUse the correct parts when changing the electric parts.
– Please check the labels and notices for the model name, proper voltage, and proper current for the electric parts.
OFully repair the connection for the types of harness when repairing the product after breakdown.
– A faulty connection can cause irregular noise and problems.
OWhen disassembling or assembling, make sure that the product is laid down on a work cloth.
– Doing so will prevent scratching to the exterior of the rear side of the product.
OCompletely remove dust or foreign substances on the housing, connection, and inspection parts when performing repairs.
– This can prevent fire hazards for tracking, short, etc.
OPlease tighten the service valve of the outdoor unit and the valve cap of the charging valve as securely as possible by using
a monkey spanner.
OCheck whether the parts are properly and securely assembled after performing repairs.
– These parts should be in the same condition as before the repair.
1-2 Precautions for the Static Electricity and PL
OPlease carefully handle the PCB power terminal during repair and measurement when it is turned on since it is vulnerable
to static electricity.
– Please wear insulation gloves before performing PCB repair and measurement.
OCheck if the place of installation is at least 2m away from electronic appliances such as TV, video players, and stereos.
– This can cause irregular noise or degrade the picture quality.
OPlease make sure the customer does not directly repair the product.
– Arbitrary dismantling may result in electric shock or fire.
1-3 Precautions for the Safety
ODo not pull or touch the power plug or the subsidiary power switch with wet hands.
– This may result in electric shock or fire.
OIf the power line or the power plug is damaged, then it must be changed since this is a hazard.
ODo not bend the wire too much or position it so that it can be damaged by a heavy object on top.
– This may result in electric shock or fire.
OThe use of multiple electric outlets should be prohibited.
– This may result in electric shock or fire.
OGround the connection if it is necessary.
– The connection must be grounded if there is any risk of electrical short due to water or moisture.
OUnplug the power or turn off the subsidiary power switch when changing or repairing electrical parts.
– Doing so will prevent electric shock.
OExplain to workers that the battery for the remote control needs to be separated for storage purposes when the product
will not be used for a long time.
– This can cause a problem for the remote control since battery fluid may trickle out.

1-2 Samsung Electronics
1-4 Precautions for Handling Refrigerant for Air Conditioner
Environmental Cautions: Air pollution due to gas release
OSafety Cautions
If liquid gas is released, then body parts that come into contact with it may experience frostbite/blister/numbness.
If a large amount of gas is released, then suffocation may occur due to lack of oxygen. If the released gas is heated, then noxious
gas may be produced by combustion.
OContainer Handling Cautions
Do not subject container to physical shock or overheating. (Flowage is possible while moving within the regulated pressure.)
1-5 Precautions for Welding the Air Conditioner Pipe
ODangerous or flammable objects around the pipe must be removed before the welding.
OIf the refrigerant is kept inside the product or the pipe, then remove the refrigerant prior to welding.
If the welding is carried out while the refrigerant is kept inside, the welding cannot be properly performed. This will also produce
noxious gas that is a health hazard. This leakage will also explode with the refrigerant and oil due to an increase in the refrigerant
pressure, posing a danger to workers.
OPlease remove the oxide produced inside the pipe during the welding with nitrogen gas.
Using another gas may cause harm to the product or others.
1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant
OPrecisely calculate the refrigerant by using a scale and S-net, and proceed with the test operation.
Excessive supplement can cause harm to the product since it can cause an inflow of the liquid refrigerant into the compressor.
ODo not heat the refrigerant container for a forced injection.
This may cause harm to the product or others since the refrigerant container may burst.
ODo not operate the product after removing the product safety pressure switch and sensor.
If the product is blocked inside, then this may cause harm to the product or others due to the excess pressure increase of the
refrigerant gas.
1-7 Other Precautions
OThere should be no leakage of the pipes after installation. When withdrawing the refrigerant, the compressor should be
stopped before removing the connecting pipe.
If the compressor is operating while the refrigerant pipe is not correctly connected and the service valve is opened, then
air and other substances can enter the pipe. The interior of the refrigerant cycle may then build up excessive high pressure
resulting in explosion and damage.

Samsung Electronics 2-1
2. Product Specifications
2-1 The Feature of Product
2-1-1 Feature
Q Dual SSC System Technology
When load changes, capacity amendment that is soft by continuous operation of Dual Inverter is available.
Q Dual Smart Inverter System
DSC System
Digital base Inverter base
. DVI variable + DVI constant speed
. AC Motor
. 2 generation, Vapor Injection
. Dual Smart Inverter : SSC + SSC
. BLDC Inverter Motor (14~160Hz driving)
. 3 generation, Vapor Injection
(Performance maximization of low temperature heating)
DSI System
High Pressure Refrigerant Outlet
Medium Pressure
Refrigerant Injection
Low Pressure
Refrigerant Inlet
Low Pressure
Refrigerant Inlet
3 generation,
Vapor Injection 3 generation,
Vapor Injection
Low Pressure
Refrigerant Inlet
High Pressure Refrigerant Outlet High Pressure Refrigerant Outlet
Medium Pressure
Refrigerant Inlet
Capacity
Variable
ŶCompressor driving : When load changes, is variable by fast inverter frequency.
ŶAmenities elevation : ᇹ0.5°C
Step 1
ON OFF
Step 2
Step 3 Step 4
ON OFF
ON ON ON ON

Product Specications
2-2 Samsung Electronics
Feature
(cont.)
QInverter circuit refrigerant cooling technology
- Applied high eciency refrigerant cooling circuit. Secured stable Inverter PCB cooling performance.
- Air cooling method : When natural convection / electric heat performance is low and is high load, eciency is fallen.
- Refrigerant cooling system : Forced circulation / electric heat performance is high and control of (thermal conductivity is
10 times higher than air) load is available.
Cooling of
inverter circuit
Refrigerant cooling system :
It is cooling technology of inverter circuit that use
refrigerating cycle technology.
Cooling of
inverter circuit

Product Specications
Samsung Electronics 2-3
2-1-2 Changes in comparison to basic mode
Changed
part
Changed item
and feature Basic After changed
Control Box
structure
Monolayer structure ࣖDouble
Layer Structure
- Inverter technology integration
(Inverter control circuit
composition)
- C/Box volume maximum use
Built-in type Controller embodi-
ment
- Integrated power supply
+ control unit
- Piping service easiness
Q Control Box & PCB
Changed
part
Changed item
and feature Basic After changed
CABINET
Change the color :
TOUCH GRAY
ࣖEARTH BROWN
Wire Harness installation part
change
LOGO change

Product Specications
2-4 Samsung Electronics
Changes in comparison to basic mode (cont.)
Changed
part
Changed item
and feature Basic After changed
Main PCB
Change Main PCB
- Separation for load / control.
- Option resistance delete by model.
(standardization)
- When do PCB replace, need option
download.
Hub PCB
Hub PCB newly application
- Separation for load / control.
- Enhanced fixing of load / sensor wire.
FAN PCB
Use controller of 3 phase power
- Prevented phase unbalance.
- Temperature protection of IPM.
Inverter PCB
(Compressor
Control PCB)
Applied inverter Compressor
- Refrigerant cooling method
- Mount power relay on PCB
EMI PCB 3 phase power EMI PCB
- Fuse mount
Communication
Terminal block
- Mount communication terminal block
on PCB
Q AM080/100/120/140/160/180/200/220JXV666

Product Specications
Samsung Electronics 2-5
Changes in comparison to basic mode (cont.)
Changed
part
Changed item
and feature Basic After changed
Main PCB
Change Main PCB
- Separation for load / control.
- Option resistance delete by model.
(standardization)
- When do PCB replace, need option
download.
←
Hub PCB
Hub PCB newly application
- Separation for load / control.
- Enhanced fixing of load / sensor wire.
←
FAN PCB
Use controller of 3 phase power
- Prevented phase unbalance.
- Temperature protection of IPM.
-
Inverter PCB
(Compressor
Control PCB)
Applied inverter Compressor
- Refrigerant cooling method
- Magnet S/W
ױ Did Power Relay mount to PCB.
←
EMI PCB 3 phase power EMI PCB
- Fuse mount ←
Communication
Terminal block
Did Communication Terminal block
mount to PCB. ←
Water Hub PCB Water Hub PCB
- External contact for DVM S WATER -
Q AM080/100/120/200FXWA66

Product Specications
2-6 Samsung Electronics
Changed
part
Changed item
and feature Basic After changed
Main PCB Change Main PCB
- Increase MICOM capability
FAN PCB Applies 600V IPM by LC
resonance buck-converter
Inverter PCB
(Compressor
Control
PCB)
- Increases current due to
high capacity compressor
- Increases capacitor's capacity
- Applies EMI coil on board
(Deletes core in wire)
EMI PCB
- Develops 50A EMI PBA
ױIncreases coil size and
fuse capacity
- Improves EMI characteristic.
REACTOR
- Increases current due to
high capacity compressor
- Improved wire connection terminal
Refrigerant
cooling
- Increases heat cooling capacity
- Increases pipe size and heat
exchange area
Changes in comparison to basic mode (cont.)
Q AM140/160/180/200/220/240/260/280/300KXV666

Product Specications
Samsung Electronics 2-7
Changes in comparison to basic mode (cont.)
Changed
part
Changed item
and feature Basic After changed
Pipe
Cooling
New Pipe Cooling for cooling
of inverter PCB. Unapplied
C OOLING OF
INVERTER CIRCUIT
REFRIGERANT COOLING SYSTEM :
ITIS COOLING TECHNOLOGY OF INVERTER CIRCUIT THAT USE
REFRIGERATING CYCLE TECHNOLOGY.
C OOLING OF
INVERTER CIRCUIT
Q PIPE COOLING

2-8 Samsung Electronics
Changed
part
Changed item
and feature Basic After changed [HP] After changed [HR]
Tube
struc-
ture
New inverter
cycle technol-
ogy application
New piping
Q TUBE

Samsung Electronics 2-9
2-1-3 Structure of product ( Heat Pump: AM6666XV66H Series )
Small size
Large size

2-10 Samsung Electronics
2-1-4 Structure of product (Heat Recovery: AM6666XV66R Series )
Small size
Large size
Heat exchanger CONTROL BOX
4-WAY V/V
Intercooler
Accumulator
Low Pressure
Gas Pipe
Oil separator
Compressor
High Pressure Gas Pipe
Liquid pipe
Heat exchanger
4-WAY V/V
Accumulator
Intercooler
Low Pressure
Gas Pipe
High Pressure Gas Pipe
Liquid pipe
Compressor
Oil separator
CONTROL BOX

Samsung Electronics 2-11
2-1-5 Structure of product (Power supply for 460V, 60Hz, 3Φ : AM6666XV66J6Series )
Small size
Large size
CONTROL BOX
4-WAY V/V
Oil separator
Heat exchanger
Sub-Cooler
Compressor
CONTROL BOX
4-WAY V/V
Accumulator
Compressor
Oil separator
Heat exchanger
Sub-Cooler
TRANS BOX
TRANS BOX

2-12 Samsung Electronics
2-1-6 Structure of product (DVM S WATER)
Small size
Large size
Liquid Pipe 4 WAY V/V
Accumulator
CONTROL BOX
Oil separator
Compressor
High pressure Gas Pipe
Low pressure Gas Pipe
Sub Cooler
Plate Heat Exchanger
Receiver
CONTROL BOX
Liquid Pipe
High pressure Gas Pipe
Low pressure Gas Pipe
4 WAY V/V
Receiver
Plate Heat Exchanger
Accumulator
Sub Cooler
Compressor
Oil separator

Samsung Electronics 2-13
2-1-7 Structure of product (Heat Pump AM666KX6Series)
AM140/160KXVG66, AM140/160/180KXVA66
AM180/200/220KXVG66, AM200/220KXVA66
Control Box
CompressorLiquid V/V
Gas V/V
Subcooler
Accumulator
4-WAY V/V
Heat
Exchanger
Control Box
Control Box
Liquid V/V
Gas V/V
Subcooler
Accumulator
4-WAY V/V
Heat
Exchanger

2-14 Samsung Electronics
Structure of product (Heat Pump AM666KX6Series)
AM240/260/280KXVG66, AM240/260/280/300KXVA66, AM080KXVS66
Heat Exchanger
Compressor
CONTROL BOX
4-WAY V/V
Subcooler
Gas Pipe
Liquid Pipe