Table of Contents
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AIR CONDITIONER
Refer to the service manual in the GSPN(see the rear cover) for the more information.
SYSTEM AIR CONDITIONER
OUTDOOR UNIT
AM080BXMDGH/EU
AM080BXMWGH/EU
CONTENTS
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
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Table of Contents
Related Manuals for Samsung AM080BXMDGH/EU
Summary of Contents for Samsung AM080BXMDGH/EU
- Page 1 SYSTEM AIR CONDITIONER OUTDOOR UNIT AM080BXMDGH/EU AM080BXMWGH/EU AIR CONDITIONER CONTENTS 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 Refer to the service manual in the GSPN(see the rear cover) for the more information.
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Page 2: Table Of Contents
– Connect an Indoor unit to a branch part not being used ..........4-20 4-3-12 MCU branch part setup error – Connect more Indoor units than what is actually set up in MCU ........4-21 4-3-13 MCU subcooler entrance/exit sensor error (Open/Short) ............4-22 4-3-14 Outdoor Temperature Sensor Error ....................4-23 Samsung Electronics... - Page 3 4-3-54 Error due to using single type outdoor unit in a module installation ....... 4-71 4-3-55 Indoor unit and MCU address duplication error ................. 4-72 5. PCB Diagram and Parts List ..............5-1 5-1 ASS'Y PCB MAIN ................................5-1 5-2 ASS’Y PCB INVERTER ..............................5-4 5-3 ASS’Y PCB EMI................................5-6 5-4 SUB-COMM ..................................5-7 Samsung Electronics...
- Page 4 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 9-1-4 Auto Trial Operation Error Code ......................9-13 9-2 Amount of refrigerant automatically checking ..................9-14 Samsung Electronics...
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Page 5: Precautions
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. Samsung Electronics... -
Page 6: Precautions For Handling Refrigerant For Air Conditioner
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... -
Page 7: Product Specifications
When load changes, capacity amendment that is soft by continuous operation of Dual Inverter is available. Step 1 Step 2 Capacity Step 3 Step 4 Variable ■ Compressor driving : When load changes, is variable by fast inverter frequency. ■ Amenities elevation : 0.5°C Samsung Electronics... - Page 8 - Refrigerant cooling system : Forced circulation / electric heat performance is high and control of (thermal conductivity is 10 times higher than air) load is available. Refrigerant cooling system : It is cooling technology of inverter circuit that use refrigerating cycle technology. Cooling of inverter circuit Samsung Electronics...
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Page 9: Structure Of Product (Dvm S Eco)
Product Specifications 2-1-1 Structure of product (DVM S ECO) Motor / Fan Control Box 4Way V/V Oil Separator Accumulator Heat Exchanger Gas Pipe Plate Heat Exchanger Compressor Liquid Pipe Samsung Electronics... -
Page 10: Product Specifications
2-2 Product Specifications New Model Model AM080BXMWGH/EU AM080BXMDGH/EU TYPE Model Ø,V,Hz 3/AC380~415/50 Power 3/AC380~415/50 22.4 Cooling 22.4 Capacity Heating 22.4 22.4 Cooling 1) 15.6 17.2 Heating 2) 10.0 Running Max. 11.3 12.2 Current 18.00 18.50 Power 9.96 Cooling 1) 10.98... -
Page 11: Accessory And Option Specifications
4 ROOM (Mode Control Unit) MCU-S4NEE2N 4 ROOM MEV-E24SA EEV KIT (1 Room) MEV-E32SA MXD-E24K132A MXD-E24K200A EEV KIT (2 Room) Applty to products without EEV MXD-E32K200A (Wall mount & Ceiling) MXD-E24K232A MXD-E24K132A MXD-E24K300A EEV KIT (3 Room) MXD-E32K224A MXD-E32K300A Samsung Electronics... -
Page 12: Disassembly And Reassembly
MONKEY SPANNER -SCREW DRIVER NIPPER ELECTRIC MOTION DRIVER L-WRENCH For “disassembly and assembly” DVM PLUS Ⅳ indoor unit, please refer to the products with the same structures. Only those products that are not specified elsewhere are described here. Samsung Electronics... -
Page 13: Disassembly And Reassembly
3-2-1 AM080BXM*GH/EU Parts Procedure Remark Cabi Front Right Quantity of the connector is different with dif- ferent model 1) Remove 3 screws (use "+" screw driver) Top Cover 1) Remove 8 screws around cover (use "+" screw driver) Samsung Electronics... - Page 14 Disassembly and Reassembly Parts Procedure Remark Cabi Front Install 1) Remove 1 screws (use "+" screw driver) and lift up to take off Guard Cond 1) Take off the sensor 2) Remove 10 screws (use "+" screw driver) Samsung Electronics...
- Page 15 Disassembly and Reassembly Parts Procedure Remark CABI BACK RIGHT 1) Take out the sensor wire through the hole on cabinet 2) Remove 10 screws (use "+" screw driver) Samsung Electronics...
- Page 16 Disassembly and Reassembly Parts Procedure Remark Cabi Back Install 1) Remove 1 scrwe (using "+" screw driver) Cabi Front LF 1)Remove 10 screws (using "+" screw driver) Samsung Electronics...
- Page 17 Disassembly and Reassembly Parts Procedure Remark Cabi Front LF Fan Propeller 1) Remove nut,take out the fan (using wrench turn clockwise) Samsung Electronics...
- Page 18 1) Remove 4 screws,take off the motor (using "+" screw driver) 2) Pull out the connector on main pcb board Bracket motor 1) Remove 2 screws to take off bracket cond (using "+" screw driver) 2) Remove 2 screws on the base(using "+" screw driver) Samsung Electronics...
- Page 19 The follow step can be divided into 2 case 4) Case 1:Take off the control box directly without welding a) Remove 2 screws that fix ing reactor wire;(using "+" screw driver) b) Pull out the connector as right pic Samsung Electronics...
- Page 20 2 screws that fixing pcb case f)Band the handel of the case and take off the assy inverter pcb;(Reffer right pic) Becareful when take off inverter pcb ;when reassemble should ensure the silicon grease thin and even Samsung Electronics...
- Page 21 4) Take off the control box with heat sink assembly; Discharge the refrigerant first; h) Weling two points as right picture;(using welding tool) 5) Remove 3 screws that fixing control box with partition and bracket valve; 6) Then you can take off the whole control 3-10 Samsung Electronics...
- Page 22 Disassembly and Reassembly Parts Procedure Remark Control Box Samsung Electronics 3-11...
- Page 23 HIGH PRESSURE SENSOR HIGH PRESSURE SWITCH LOW PRESSURE SENSOR VALVE & SENSOR Valve & Sensor ACCUM IN SENSOR INSULATION INSU CODE DB62-08752F DB62-08752F VALVE & SENSOR Valve & Sensor HOT GAS VALVE 3-12 Samsung Electronics...
- Page 24 EVI BYPASS VALVE SUBCOOLER IN SENSOR DISCHARGE SENSOR EVI OUT SENSOR SUBCOOLER OUT SENSOR INSULATION INSU CODE DB62-08752C DB62-08752D DB62-08752C DB62-08752C INSULATION INSU CODE DB62-08752A DB62-08752A DB62-08752A Samsung Electronics 3-13...
- Page 25 Binding Wire 3 ■ AM080BXMDGH/EU VALVE & SENSOR Valve & Sensor EVI VALVE MAIN EEV EVI SOL VALVE EVI BYPASS VALVE SUBCOOLER IN SENSOR DISCHARGE SENSOR EVI OUT SENSOR INSULATION INSU CODE ...
- Page 26 [Reference Sheet] Pipe Welding Position ■ AM080BXMWGH/EU Welding Position Q'ty 4WAY+OIL SEPA DISCHARGE+OIL SEPA DISCHARGE+COMP EEV OUT+TUBE COOLING TUBE COOLING+TUBE PHE IN TUBE EVI+ACCUM SUCTION+ACCUM 4WAY+TUBE COONECTOR TUBE CONNECTOR+COND IN S?UCTION+COMP VAPOR INJECTION+COMP COND OUT+EEV IN Samsung Electronics 3-15...
- Page 27 [Reference Sheet] Pipe Welding Position ■ AM080BXMDGH/EU WELDING POSITION Q'TY SUCTION+ACCUM 4WAY+ACCUM TUBE COOLING+TUBE SERVICE V/V TUBE COOLING+TUBE EEV EVI TUBE DISCHARGE+COMP 4WAY+OIL SEPA SUCTION+COMP 4WAY+TUBE CONNECTOR 3-16 Samsung Electronics...
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Page 28: Caution At Compressor Exchange
Add oil according to sheep of oil that pour decided addition before. Establish again by vacuum mode after connect power. Execute leakage examination using nitrogen vacuum work Add a refrigerant quantity deciding from step 5. Execute Auto Trial Operation after open SVC Valve. Samsung Electronics 3-17... - Page 29 - Power connector of ARV confirms that was linked right. - Extract connector in vacuum mode or confirm whether when insert, action sound of valve happens. ③ When CCH is badness, can become cause of compressor breakdown by oil foaming. 3-18 Samsung Electronics...
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Page 30: Mcu
2) Separate 4 fixing screws from the brackets. (Use + Serew Driver) Cabinet front 1) Separate front cabinet from MCU. Control box cover 1) Separate 2 fixing screws from the control box cover. (Use + Serew Driver) 2) Separate control box cover from MCU. Samsung Electronics 3-19... -
Page 31: Eev Kit
1) Separate 1 fixing screw from EEV kit. (Use + Serew Driver) 2) Separate cabinet from EEV kit. Control parts 1) Separate 2 fixing screws from EEV kit. (Use + Serew Driver) 2) Separate control part from EEV kit. 3-20 Samsung Electronics... -
Page 32: Check-Up Window Description
4. Troubleshooting 4-1 Check-up Window Description Samsung Electronics... -
Page 33: Service Operation
” “ ” “ ” 8 times Forced oil collection BLANK BLANK “ ” ” ” “ ” “ ” 9 times Inverter compressor check BLANK BLANK 10 times End Key operation (Note 1) Not available on AM***FXM**C Series Samsung Electronics... - Page 34 18 times Current frequency of compressor → Master indoor unit not seleted BLANK , N , D 19 times Master indoor unit address → If indoor unit No.1 is seleted as the master unit 0 , 0 , 1 Samsung Electronics...
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Page 35: Number Display Method (Outdoor Unit, Mcu, Cable Remote Control, Wall-Mount, Etc.)
Display method for error that occurred in outdoor unit Error Number Outdoor unit address E471 U200 E471 U200 and other methods of error display Error Number, repeat display E206 C001 E206 C002 Samsung Electronics... - Page 36 E-190 indoor unit with wrong address No temperature changes in EVA OUT during pipe inspection or changes in temperature is seen in E-191 indoor unit with wrong address E-198 Error due to disconnected thermal fuse of indoor unit Samsung Electronics...
- Page 37 Error on temperature sensor of double layer pipe/liquid pipe(sub heat exchanger) (Short or Open) E-321 Error on EVI (ESC) IN temperature sensor (Short or Open) E-322 Error on EVI (ESC) OUT temperature sensor (Short or Open) E-323 Error on suction sensor 2 (Short or Open) Samsung Electronics...
- Page 38 In case of DVM water, Heating mode restriction due to low water temperature E-442 Refrigerant charing restriction in heating mode when air temperature is over 15 °C E-443 Operation prohibited due to low pressure E-445 CCH is deatched Samsung Electronics...
- Page 39 Error due to using single type outdoor unit in a module installation E-702 Error due to closed EEV of indoor unit (1st detection) E-703 Error due to opened EEV of indoor unit (1st detection) Auto Trial Operation incompleted (UnPrepared) Samsung Electronics...
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Page 40: Appropriate Measures For Different Symptom
* Essential Requirements before Changing PCB in the indoor unit which interferes with the communication to check and change the indoor unit PCB. Case of Communication Error: Refer to p.50 Good Defective 0.7V 0.7V Samsung Electronics... -
Page 41: Communication Error Between Main And Sub Unit Of Outdoor Unit Or Between Outdoor Units
Check wiring of outdoor unit Change wiring or connect communication cable. Check K13 and K14 setup Change settings options for outdoor unit. Replace PCB. Essential Requirements before Changing PCB in Case of Communication Error: Refer to p.59 4-10 Samsung Electronics... -
Page 42: Internal Communication Error Of The Outdoor Unit C-Bo
1) Check the Main PCB : Main PCB TX circuit inspection Confirm a blinking of Fan PCB LD22, 32? 2) Check the Hub PCB : Hub PCB TX circuit inspection * Service after turn off the Main Power. Replace Main PCB Samsung Electronics 4-11... -
Page 43: Internal Pcb Communication Error Of The Outdoor Unit C-Box
Replace Hub PCB E206 C002 Check the connection status Lighting of Fan PCB LD41 did confirmation? (CN12 connector) Is Fan PCB CN13 connector accurately connected? Fan PCB CN13 connection Replace Fan PCB (Fan PCB TX part : Breakage) 4-12 Samsung Electronics... - Page 44 Internal PCB Communication error of the Outdoor Unit C-Box (cont.) E206 C003/C004 Check the connection status Lighting of INV PCB LD11 did confirmation? (CN91 connector) Is INV PCB CN32 connector accurately connected? CN32 connector connection Replace INV PCB (INV PCB TX part : Breakage) Samsung Electronics 4-13...
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Page 45: Mcu Branch Part Setup Error - Inconsecutive Connection With The Use Of 2 Branch Parts
MCU PCB Branch part use setup Setting error Indoor unit address Branch A Indoor unit MCU BOX #0 address setup MCU PCB Branch part use setup Setting error Indoor unit address Branch A Indoor unit 4-14 Samsung Electronics... -
Page 46: Mcu Branch Part Setup Error - Repeated Setup For The Same Address Over 3 Times
Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press K3 button on the button to reset or turn it off to restart. Outdoor Unit PCB Quantity of Quantity of Indoor Unit Branch Indoor Unit: 3 MCU: 1 Samsung Electronics 4-15... -
Page 47: Mcu Branch Part Setup Error - Non-Installed Address Setup
MCU PCB MCU PCB Branch part use setup Indoor unit address Branch A Branch A Indoor unit Outdoorunit Indoor unmber setup MCU unmber setup 4-16 Samsung Electronics MCU address setup MCU BOX #0 MCU BOX #1 MCU PCB MCU PCB... -
Page 48: Setup Error For Mcu Branch Part - Setup Error For Mcu Quantity Used
Address: 2 • Example of MCU address setting error ex) Two among three of MCU address was set to 0 Outdoor Unit PCB Quantity of Quantity of Indoor Unit Branch Indoor Unit: - MCU: 3 Branch Branch Samsung Electronics 4-17... -
Page 49: Mcu Branch Part Setup Error - Overlapping Indoor Unit Address Setup
MCU BOX #0 address setup MCU PCB Branch part use setup Indoor unit address Branch A MCU BOX #1 address setup MCU PCB Branch part use setup Indoor unit address Branch A MCU BOX #1 MCU PCB Branch A 4-18 Samsung Electronics... -
Page 50: Mcu Branch Part Setup Error - Set As Being Used Without Connection To An Indoor Unit
Branch A K3 button to reset or turn off to restart. MCU BOX #1 MCU PCB Branch A MCU BOX #1 MCU address setup MCU PCB Branch part use setup Indoor unit address Branch A Indoor unit Samsung Electronics 4-19... -
Page 51: Mcu Branch Part Setup Error - Connect An Indoor Unit To A Branch Part Not Being Used
Check the actual use of the branch part. If it is used, turn on the Dip switch for branch part setup. After completing resetting, press the outdoor unit's K3 button to reset or turn off to restart. MCU BOX #1 MCU address setup MCU PCB Branch part use setup Indoor unit address Branch A Indoor unit 4-20 Samsung Electronics... -
Page 52: Mcu Branch Part Setup Error - Connect More Indoor Units Than What Is Actually Set Up In Mcu
Example of MCU indoor unit setting DIP switch error • ex) Indoor unit No.5 was connected to branch part C, but DIP switch No.3 (branch part C) is off. Outdoor Unit PCB Quantity of Quantity of Indoor Branch Indoor Unit: 4 MCU: 1 Samsung Electronics 4-21... -
Page 53: Mcu Subcooler Entrance/Exit Sensor Error (Open/Short)
Separate the connector from the PCB and measure the resistance value between the 2 terminals. 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective itself. Restart operation after replace the PCB 4-22 Samsung Electronics... -
Page 54: Outdoor Temperature Sensor Error
12.1 18.0 27.3 Did the resistance 43.0 value significantly stray from the following temperature table? Replace this since it is the defective of the outdoor temperature sensor itself. Restart operation after replace the PCB Samsung Electronics 4-23... -
Page 55: Cond Out Temperature Sensor Error (Open/Short)
COND 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the outdoor Cond Out sensor itself. Restart operation after replace the PCB 4-24 Samsung Electronics... -
Page 56: Outdoor Cond Out Sensor Breakaway Error
Is the Cond Out sensor resistance value reasonable? Defective Sensor : Replace Sensor (Refer to E231) Are there any changes n the value of the sensor when operating from Blocked Sensor Path : stop to heating? Change heat exchanger Ass'y Complete Samsung Electronics 4-25... - Page 57 Is the Cond Out sensor resistance value reasonable? Defective Sensor : Replace Sensor (Refer to E231) Are there any changes n the value of the sensor when operating from Blocked Sensor Path : stop to heating? Change heat exchanger Ass'y Complete 4-26 Samsung Electronics...
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Page 58: Compressor Discharge Or Top 1/2 Temperature Sensor Error
242.0 362.0 553.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Compressor Discharge or Top Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics 4-27... -
Page 59: Compressor Discharge Or Top Temperature Sensor Breakaway Error
Is the Discharge or Top temperature sensor and the Re-insert sensor Re-attach sensor holder sensor holder correctly attached? Is the Discharge or Top temperature sensor resistance Defective sensor : Replace sensor value reasonable? (Refer to E251) Complete 4-28 Samsung Electronics... -
Page 60: Suction Temperature Sensor Breakaway Error
∙ Suction temperature sensor breakaway/defective. 1. Cause of problem Is Suction sensor Re-insert the sensor. and sensor Holder accurately Re-attach the sensor holder. attached? Is Suction sensor resistance value reasonable? Defective Sensor : Replace Sensor (Refer to E231 ) Complete Samsung Electronics 4-29... -
Page 61: High Pressure Sensor Error (Open/Short)
Out of the PCB High Pressure Replace PCB sensor terminals, is there voltage between pins 3 and 4 5V? The ▼ mark is the 1st pin on the PCB. Replace High Pressure sensor 4-30 Samsung Electronics... -
Page 62: Low Pressure Sensor Error (Open/Short)
Out of the PCB Low Pressure Replace PCB sensor terminals, is there voltage between pins 3 and 4 5V? The ▼ mark is the 1st pin on the PCB. Replace Low Pressure sensor Samsung Electronics 4-31... -
Page 63: Suction Temperature Sensor Error (Open/Short)
2 terminals. 12.1 SUCT 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Outdoor Suction sensor itself. Restart operation after replace the PCB 4-32 Samsung Electronics... -
Page 64: Liquid Pipe Temperature Sensor Error (Open/Short)
LIQUID 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Liquid Pipe Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics 4-33... -
Page 65: Evi In Temperature Sensor Error (Open/Short)
12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Outdoor EVI In Temperature sensor itself. Restart operation after replace the PCB 4-34 Samsung Electronics... -
Page 66: Evi Out Temperature Sensor Error (Open/Short)
12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Outdoor EVI Out Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics 4-35... -
Page 67: Suction-2 Temperature Sensor Error (Open/Short)
12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Change this part as it is the fault of the outdoor Suction-2 sensor itself. Restart operation after changing PCB 4-36 Samsung Electronics... -
Page 68: Measures Of Other Outdoor Unit Error
FAN2 PBA IPM temperature sensor error Replace FAN PBA E499 FAN1 PBA IPM temperature sensor error Replace FAN PBA E374 Inverter PBA2 IGBT temperature sensor error Replace Inverter PBA E474 Inverter PBA1 IGBT temperature sensor error Replace Inverter PBA Samsung Electronics 4-37... -
Page 69: Comp. Down Due To High Pressure Protection Control
Are there any blockage inside Pipe inspection the pipe? (filter etc.) Are the Outdoor Fan Replace relevant component operating normally for the cooling and the Indoor Fan operating normally for (motor or fan) the heating? Check the refrigerant amount. 4-38 Samsung Electronics... - Page 70 Are there any blockage inside Pipe inspection the pipe? (filter etc.) When cooling operation, Check the water pipes or Replace water temperature, quantity, or heating operation, relevant component(motor or fan) indoor fan operates normally do? Check the refrigerant amount. Samsung Electronics 4-39...
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Page 71: Comp. Down Due To Low Pressure Protection Control
(filter etc.) Is there any leakage in the Liquid Pipe Valve or the discharge Replace relevant component check valve of the not-go-end Outdoor Unit when only some Outdoor Units are operating? Check the refrigerant amount. 4-40 Samsung Electronics... - Page 72 (filter etc.) Is there any leakage in the Liquid Pipe Valve or the discharge check valve Replace relevant component of the not-go-end Outdoor Unit when only some Outdoor Units are operating? Check the refrigerant amount. Samsung Electronics 4-41...
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Page 73: Suspension Of Starting Due To Compressor Discharge Temperature Sensor / Top Temperature Sensor
Are all service valves open? Open the Service Valve Are the Indoor Unit and Outdoor Unit EEV normally Check the relevant EEV operating? Are there any blockage inside the pipe? Pipe inspection (filter etc.) Check the refrigerant amount. 4-42 Samsung Electronics... -
Page 74: 3-Phase Input Wiring Error
Did the EMI PCB Fuse is short? Replace Fuse, if the rectifier diode of the inverter PCB is normal. Is EMI PCB CN21 connector and Inverter PCB accurately Connection and then restart it connected? Replace Inverter PCB Samsung Electronics 4-43... -
Page 75: Suspension Of Starting By Abnormal Compression Ratio
Manifold Gauge value in range? Are the 4Way Valve normally Check the 4Way Valve operating? Are the Indoor Unit and Outdoor Check the relevant EEV Unit EEV normally operating? Compressor Inspection Is current of compressor normally? Check the refrigerant Complete 4-44 Samsung Electronics... -
Page 76: Evi Eev Open Error
Breakdown Check the Intercooler leakage. Normal Replace Intercooler Breakdown Check the Indoor Unit EEV leakage Normal Replace Indoor Unit EEV Check the connection for Indoor Unit Pipe (Connect liquid pipe-gas pipe directly) Reinstall pipe Check the refrigerant Samsung Electronics 4-45... -
Page 77: Refrigerant Leakage Error
Out of the PCB Pressure sensor terminals, is there voltage between Replace PCB pins 3 and 4 5V? The ▼ mark is the 1st pin on the PCB. Replace Pressure sensor 4-46 Samsung Electronics... -
Page 78: Prevention Of Heating / Cooling Operation Due To Outdoor Temperature
∙ Heating operation : When the outdoor temperature is more than 30℃ Judgment Method ∙ Cooling operation : When the outdoor temperature is less than -15℃ Cause of ∙ System protection operation status (Is not breakdown) problem Samsung Electronics 4-47... -
Page 79: Prevention Of Heating Refrigerant Charge Due To Outdoor Temperature
※ ● : ON ◑ : Flash × : OFF • When the heating refrigerant charge : If the outdoor temperature is more than 15℃ Judgment Method Special Cause • System protection operation status (Is not breakdown) 4-48 Samsung Electronics... -
Page 80: Wire Breaking Error
Fix the compressor Top temperature sensor in correct position. Is CCH resistance normal? (500~700Ω/infinite for disconnection) Change CCH. Does the E445 error occur even after the outdoor unit power is put back in? Normal Operation. Change PCB. Samsung Electronics 4-49... - Page 81 Fix the compressor Top temperature sensor in correct position. Is CCH resistance normal? (500~700Ω/infinite for disconnection) Change CCH. Does the E445 error occur even after the outdoor unit power is put back in? Normal Operation. Change PCB. 4-50 Samsung Electronics...
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Page 82: Fan Starting Error
Replace Fan Motor an Motor (U↔V,V↔W,W↔U) less than 10Ω? Is the resistance between the body of Replace Fan Motor Fan Motor and chassis MΩ? Does the Compressor connection Check the connection wire wire properly connect? Replace Fan PCB Samsung Electronics 4-51... - Page 83 Measurement error can occur for reasons such as the initial measurement condenser discharge. Measured over at least three times. Measure the diode 0.3~0.7V voltage values < Table 1 > Fan PCB FAN PCB < Figure 1 > 4-52 Samsung Electronics...
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Page 84: Fan Lock Error
If you rotate the fan by hand, Replace Fan Motor the noise occurs? Connection wire of Fan Motor did confirmation? Check the connection status, and then restart. (Check the connection status of the Fan1 and Fan2.) Replace Fan PCB Samsung Electronics 4-53... -
Page 85: Momentary Blackout Error
※ ● : ON ◑ : Flash × : OFF Judgment Method ∙ Momentary stop of compressor due to momentary blackout. ∙ Momentary stop of compressor due to momentary blackout. Cause of problem 1. Precautions : Replace Hub PCB or Main Hub Connection wire. 4-54 Samsung Electronics... -
Page 86: Outdoor Fan Motor Overheating
Connection wire of Fan Motor did confirmation? (Verify that the wire folded, or the connection is Check the connecting wire and restart it. detached.) Is there anything strange in Replace Fan PCB appearance Fan Motor? Replace Fan Motor Samsung Electronics 4-55... -
Page 87: Fan Ipm Overheat Error
*Cold heat sink assembly defect occurs. Is the bolt of the heat sink fully tightened? Tighten Bolt Remove foreign objects and Did check the foreign objects apply the heat sink grease. between the heat sink and IPM? And then reassembly Complete 4-56 Samsung Electronics... -
Page 88: Compressor Starting Error
Replace Compressor. compressor (U↔V,V↔W,W↔U) less than 2Ω? Is the resistance between the body of Compressor and Replace Compressor. chassis MΩ? Does the Compressor connection wire properly connect to Check the connection wire. the compressor? Continue Samsung Electronics 4-57... - Page 89 Replace No.1 Inverter PCB Error of No.1 Compressor Error of No.2 Compressor Replace No.2 Compressor Error of No.2 Compressor Error of No.2 Compressor Replace No.1 Inverter PCB Error of No.2 Compressor Error of No.1 Compressor Replace No.2 Compressor 4-58 Samsung Electronics...
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Page 90: Inverter Overcurrent Error
(U-V, V-W, W-U) less than 2Ω? Is the resistance between the body of Compressor and Replace Compressor chassis MΩ? Does the Compressor Check the connection wire connection wire properly connect (Check the status of the connection UVW) to the compressor? Continue Samsung Electronics 4-59... - Page 91 Before change / After change Compressor Compressor Compressor Error, depending on the situation replace the Compressor or PCB Error of No.2 Error of No.2 Replace No.1 Compressor Compressor Inverter PCB Error of No.2 Error of No.1 Replace No.2 Compressor Compressor Compressor 4-60 Samsung Electronics...
- Page 92 N-IGBT discharge. P-IGBT P-IGBT Measured over at least three times. P-IGBT Measure the diode 0.3~0.7V voltage values N-IGBT N-IGBT N-IGBT < Table 1 > Inverter PCB 인버터 PCB < Figure 1 > Samsung Electronics 4-61...
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Page 93: Overvoltage / Low Voltage Error
R, S, T wire? Replace Inverter PCB and then restart it. Did the EMI PCB Fuse is short? * Check the 3-phase sensing circuit part. Replace Fuse, if the rectifier diode of the inverter PCB is normal. 4-62 Samsung Electronics... -
Page 94: Dc Link Voltage Sensor Error
Is EMI PCB and Inverter PCB Power Off and then re-connection accurately connected? The case of E396, E498 Is Inverter PCB and Fan PCB DC-Link voltage connection wire Replace Fan PCB accurately connected? Replace Inverter PCB The case of E396, E498 Samsung Electronics 4-63... -
Page 95: Fan Motor Overcurrent Error
Is the resistance between the body of Outdoor Fan Motor Fan Motor and chassis MΩ? Check the connection wire Does the Fan Motor connection wire properly connect to the compressor? (Check the status of the connection UVW) FAN Replace PCB. 4-64 Samsung Electronics... -
Page 96: Input / Output Current Sensor Error
Cause of problem ∙ PCB voltage sensing circuit defective 1. Cause of problem Power Off Is Power connection accurately connected? Power Cable re-connection E485 or E385? E493 or E393? E468 or E368? Replace Inverter PCB Replace Fan PCB Samsung Electronics 4-65... -
Page 97: Outdoor Fan Pcb Overvoltage / Low Voltage Error
∙ Check the input wiring Cause of problem ∙ EMI Fuse short 1. Cause of problem Power Off Is Inverter PCB CN15 and Fan PCB CN11 DC-Link voltage connection Connection and then restart it wire accurately connected? Replace Fan PCB 4-66 Samsung Electronics... -
Page 98: Hall Ic(Fan) Error
(Verify that the wire folded, or the connection is detached.) Check the connecting wire and restart it. HALL IC on the PCB is connected correctly? Replace Fan PCB Restart When the error is repeated, replace the Fan Motor. Samsung Electronics 4-67... -
Page 99: Inverter Overheat Error
Remove foreign objects and apply the heat sink and IPM? grease. And then reassembly Apply the heat sink grease and then reassembly. Did properly apply the heat sink grease? (Between the heat sink and the IPM) Good No Good Complete 4-68 Samsung Electronics... -
Page 100: Option Setting Error Of Outdoor Unit
: Change the setting after replace. Is the outdoor unit EEPROM accurately connected to Connect outdoor unit EEPROM and then reset. connector? Download relevant model EEPROM and then reset. ※ Execute automatic commissioning for UP cancellation after EEPROM download. Samsung Electronics 4-69... -
Page 101: Model Mismatching Of Indoor Unit
Power On Does connected Replace the indoor unit that is indoor unit become compatible with compatible with the DVM INV. DVM INV? Is software version of Software upgrade indoor unit since July, 2011? Replace indoor unit PCB 4-70 Samsung Electronics... -
Page 102: Error Due To Using Single Type Outdoor Unit In A Module Installation
Is the outdoor unit by module installed? Outdoor unit single type exclusive use model Download relevant model EEPROM and (non-modular model), can not be module then reset. installation. ※ Execute automatic commissioning for UP (single type only installation) cancellation after EEPROM download. Samsung Electronics 4-71... -
Page 103: Indoor Unit And Mcu Address Duplication Error
※ Whole system power reset - To solve the problem through the power reset after the address is reset the power reset of individual units is meaningless and the power of the whole system must be reset. 4-72 Samsung Electronics... -
Page 104: Pcb Diagram And Parts List
5. PCB Diagram and Parts List 5-1 ASS'Y PCB MAIN Samsung Electronics... - Page 105 PCB Diagram and Parts List Samsung Electronics...
- Page 106 Samsung Electronics...
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Page 107: Ass'y Pcb Inverter
5-2 ASS’Y PCB INVERTER Samsung Electronics... - Page 108 #1 : 500V #2 : IN-SMPS-RELAY #2 : REACTOR #2 : GND #2 : GND(500V) #3 : COMM-IN #3 : 5V-FAN #4 : GND-MAIN #4 : AD-SELECT ⑨ CN13 - ACPOWER #1 : AC #2 : #3 : AC Samsung Electronics...
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Page 109: Ass'y Pcb Emi
③ ④ CN23- INVERTER 220V CN21-FAN A CN22-MAIN 220 RST- RST INPUT #1 : AC #1 : R #1 : AC T-IN #2 : #2 : S #2 : AC S-IN #3 : AC #3 : T R-IN Samsung Electronics... -
Page 110: Sub-Comm
② CN36 ③ CN#44 ④ CN45 ⑤ CN55 #1 :F1 #1 : F1 #1 : OF1 #1 : R1 #2 :F2 #2 : F2 #2 : OF2 #2 : R2 #3 :OF1 #4 :OF2 #5 :R1 #6 :R2 Samsung Electronics... -
Page 111: Wiring Diagram
YEL / GRN (BLK) 1 2 3 CN45 WHT BLK BRN SKYBLU CN77 (WHT) (WHT) CN36 CN55 (BLU) COMM PCB (RED) BRN SKYBLU CN44 (YEL) INDOOR-OUTDOOR SOLUTION 3 PHASE POWER COMM This Document can not be used without Samsung’s authorization. Samsung Electronics... -
Page 112: Am080Mxmdhc1
Wiring Diagram 6-2 AM080MXMDHC1 This Document can not be used without Samsung’s authorization. Samsung Electronics... -
Page 113: Cycle Diagram
Suction Temperature Sensor T_CO Cond. Out Temperature Sensor T_EI EVI In Temperature Sensor T_EO EVI Out Temperature Sensor Liquid Pipe Temperature Sensor T_CT Comp. Top Temperature Sensor Ambient Temperature Sensor SV_G Gas Pipe Service Valve SV_L Liquid Pipe Service Valve Samsung Electronics... -
Page 114: Main Heating Operation(H/R)
7-2 Main heating operation(H/R) ■ AM080BXM*GH/EU Φ4.76x2 240mm Φ Φ1.0x800mm Samsung Electronics... -
Page 115: Cycle Component Function Explanation
25. Control box temp. Sensor : Control box internal temperature measurement, thermal protection used for the control. 26. Receiver : Storing the refrigerant piping system, a stable liquid refrigerant supply 27. Liquid Tube Valve : Refrigerant in the outdoor unit side, the indoor unit during heating operation to rotate the valve operation. Samsung Electronics... -
Page 116: Key Options
Not applicable — Restrict excessive capacity increase Enable maximum capacity restriction for cooling operation when operating indoor units with small capacity — Disable maximum capacity restriction for cooling operation SW53 — Not applicable — — Not applicable — Samsung Electronics... - Page 117 ((3) If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg 3, Seg 4 and change the function for the selected option. Example) (4) After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will be saved when entire segments blinks and tracking mode begins. Samsung Electronics...
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Page 118: How To Set The Key Function Of The Outdoor Unit
Increase fan speed maximum value Disabled (Factory default) LEVEL 1 Silent mode for night- Main time LEVEL 2 Enable silent mode for night-time LEVEL 3 Disabled (Factory default) Not applicable High-head condition Main setting Not applicable Not applicable Samsung Electronics... - Page 119 Main controller(DMS,S-NET 3,etc.) Manual setting for channel 0 - 15 0 – 15 Enabled Snow accumulation During snow accmulation , the fan may spin even when Main prevention control the unit is not in operation Disabled (Factory default) Samsung Electronics...
- Page 120 (Refer to pages 54~55 for the Seg number of the function for each option) Example) (4) After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will be saved when entire segments blinks and tracking mode begins. Samsung Electronics...
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Page 121: How To Check The View Mode Using A Tact Switch
Fan speed correction Main Increase the outdoor unit's fan speed to for outdoor unit Increase fan speed maximum value Disabled (Factory default) LEVEL 1 Silent mode for Main night-time LEVEL 2 Enable silent mode for night- time LEVEL 3 Samsung Electronics... - Page 122 Disabled (Factory default) operation If the external contact interface LEVEL 1 Silent mode for external module (MIM-B14) is used, entering the Main contact silent mode is available with contact LEVEL 2 signal. LEVEL 3 Samsung Electronics...
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Page 123: Test Operation
- Check the Indoor and Outdoor abnormal noise. - Check the drainage of the Indoor Unit cooling operation. - More operation : Checking status by using the S-NET. (5) Refer to manual and explain air conditioner usage to user. Samsung Electronics... - Page 124 - Oblique line marked area in the during operation of the system can be protection control. (Auto Trial Operation of normal judgment can be difficult by the protection control operation.) - If out of warranty coverage and the boundary area : Auto Trial Operation judgment accuracy may be reduced. Samsung Electronics...
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Page 125: Auto Trial Operation Functions
Must be carried out Auto Trial Operation after 1 hour from final operation stopped. (In this case, the vacuum mode of the air must maintain for more than 5 minutes.) - Restart of Auto Trial Operation after troubleshoot the item that "Undetermined" Samsung Electronics... -
Page 126: How To Troubleshoot Of The "Undetermined
- If the Indoor temperature setting by wired remote control : Carried out the Auto Trial Operation after setting the Temperature sensor of Indoor Unit. - Indoor Unit of outdoor air introduction : Will be excluded from the Indoor air temperature, EVA In / Out Temperature sensor checking. Samsung Electronics... - Page 127 Outdoor Unit Temperature sensors, less than 10℃? Complete [Caution] - If the Outdoor Unit with a history of operation (Auto Trial Operation inclusion) : Must be carried out Auto Trial Operation after 1 hour from final operation stopped. Samsung Electronics...
- Page 128 O the vacuum mode (All of the Outdoor Unit) Complete Caution - If the judgment of Pressure sensor "Undetermined" : Display the error to all of the Outdoor Unit and then Auto Trial Operation is exited. (Stop the overall system) Samsung Electronics...
- Page 129 /Min deviation : less than 2" Off the vacuum mode of Outdoor Unit Complete [Caution] - If the Outdoor Unit with a history of operation (Auto Trial Operation inclusion) : Maintain the vacuum mode for more than 5 minutes. Samsung Electronics...
- Page 130 1) When closed Main EEV opening : Compressor suction degree of overheat impossible to ensure and less than DSH 20K. 2) When opened Main EEV opening : Compressor suction degree of overheat is high status. 3) Main EEV : Refer to the Service Manual. - Pressure sensor abnormal symptoms : Refer to the Service Manual. Samsung Electronics...
- Page 131 CT Replace Inverter PCB sensor have the same value? Is refrigerant Is Compressor current(CT) value normal? in the system properly? Adjusts the refrigerant (Addition / Emitted) IIs operation current of Compressor normal? Replace Compressor Complete Samsung Electronics...
- Page 132 Temperature(℃) When Auto Trial Operation, does maintain Thermo On status of Indoor ventilation Indoor Unit? 11.2 18.5 32.0 59.0 200.0 Adjusts the refrigerant Is refrigerant in the system properly? 242.0 (Addition / Emitted) 362.0 553.0 Complete 9-10 Samsung Electronics...
- Page 133 Is 4Way Valve coil normal? (Wire breaking, operation impossible, etc.) Replace Valve coil Is PCB Output signal normal? Replace PCB Replace 4Way Valve Body (Retry the Auto Trial Operation : If the continuous "Undetermined" is displayed.) Complete Samsung Electronics 9-11...
- Page 134 Replace Coil etc.) Is PCB Output signal normal? Replace Hub PCB Replace Main EEV Complete ※ Main EEV coil resistance value based (Measured temperature is 20°C) Operating Resistance of Voltage between the EEV Wiring Diagram (VDC) phase (Ω) 9-12 Samsung Electronics...
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Page 135: Auto Trial Operation Error Code
Service Valve is closed Refer to "Service Valve" Dedicated Error Code E505 High pressure sensor breakdown Refer to "High / Low pressure sensor E506 Low pressure sensor breakdown (Module installed)" ※ Other error codes : Refer to Service Manual. Samsung Electronics 9-13... -
Page 136: Amount Of Refrigerant Automatically Checking
● Deficiency of Over-cooling : After the 10% addition of calculated total refrigerant amount, retry Checking the amount of refrigerant. ● Undetermined : Checking the amount of refrigerant confirms that is performed in warranty temperatures area. Ensure that there is no other problems in the system by Test Operation. 9-14 Samsung Electronics... - Page 137 China china.samsungportal.com © Samsung Electronics Co., Ltd. April. 2022. This Service Manual is a property of Samsung Electronics Co., Ltd. Printed in Korea. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No. AC-00305E_1...