SYSTEM AIR CONDITIONER OUTDOOR UNIT AM036FXMDCH AM048FXMDCH AM053FXMDCH AIR CONDITIONER CONTENTS C Product Specifications C Disassembly and Reassembly C Troubleshooting C PCB Diagram C Wiring Diagram C Reference Sheet C Check Operation & Amount of Refregent Automatically Checking Refer to the service manual in the GSPN(see the rear cover) for the more information.
Contents ͑غProduct Specifications ............................................................................................................... 1 1. The Feature of Product........................................................................................................................ 1 1-1 Featres ........................................................................................................................... 1 2. Product Specifications ...........................................
͑غProduct Specifications 1.
Product Specifications Feature (cont.) Q Application of wide fin 0.24 Ø7 Groove 12 Ø8 High Groove Increased by 30.8% 0.16 Decreased by 14% 0.12 10 8 0.08 4 0.04 2 0.
Product Specifications 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. Hydrophilic layer (Acrylic resin + surfactant) Anti corrosive layer (Epoxy acrylic) Raw aluminum material 0.3 m 2.
Product Specifications Feature (cont.) Q Memory module • Achieves world-class efficiency with hyper compressor that applies double compression technology 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.
Product Specifications Feature (cont.) 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 Q System check through View mode • Through the window on outdoor unit PCB display, you can check the main system data during operation.
Product Specifications Feature (cont.) 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.
2. Product Specifications Type Performance 38,000 48,000 53,000 Model Btu/h AM036FXMDCH AM048FXMDCH AM053FXMDCH Power Supply(Φ/V/Hz) 1, 208~230, 60 1, 208~230, 60 1, 208~230, 60 Mode HP HP HP Cooling Btu/h 38,000 48,000 53,000 Heating Btu/h 42,000 54,000 61,000 -10°C Heating Btu/h 26,500 35,000 38,000 Cooling* A 15.2 20.7 24.7 Heating* A 18.1 23.2 26.
͑غDisassembly and Reassembly Q Necessary Tools Item Remark +Screw Driver Monkey Spanner –Screw Driver Nipper Electric Motion Driver L-Wrench Samsung Electronics 9
Disassembly and Reassembly Q OUTDOOR UNIT No Parts 1 Cabi Front RH Procedure Remark You must turn off the Power before disassembly. 1) Unscrew and remove 2 mounting screw in the Cabinet Front RH. (Use + Screw Driver) 10 2 Cabi Top 3 Cabi Install Front 1) Unscrew and remove 9 screws on each side of the Cabinet-Top. (Use +Screw Driver) 1) Unscrew and remove 1 screw in the Cabinet-Install Front.
Disassembly and Reassembly No Parts 4 Guard Cond Procedure Remark 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.
Disassembly and Reassembly 12 No Parts 6 Cabi Install Back 7 Cabi Front LF Procedure Remark 1) Unscrew and remove 1 screw in the Cabinet-Install Back. (Use +Screw Driver) 1) Unscrew and remove 10 screws in the Cabinet-Front LF.
Disassembly and Reassembly No Parts 8 Fan Samsung Electronics Procedure Remark 1) Turn 2 mounting nuts as shown in the picture and remove it.
Disassembly and Reassembly No Parts Procedure 9 Motor 1) Separate the Fan Propeller. 2) Unscrew and remove the 8 Motor mounting screws. (Use +Screw Driver) Remark 3) Disconnect the Motor wire from Ass’y Control Out. 10 14 Bracket Motor 1) Unscrew and remove 2 mounting screws in Bracket Motor.
Disassembly and Reassembly No Parts 11 Control Out Procedure Remark 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 No Parts 12 Ass'y Tube EEV Procedure Remark 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 14 Ass'y Tube 4Way 1) Separate 2 parts of the pipe using a welder. 1) Unscrew and remove 2 mounting screws in Oil Separator. (Use + Screw Driver.
Disassembly and Reassembly No Parts 13 Compressor Procedure Remark 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.
Disassembly and Reassembly 18 No Parts 16 Cond Out Procedure Remark 1) Unscrew and remove 3 screws on each side of the Ass’y Cond Out.
͑غTroubleshooting 1.
2. Error Code 20 No. Code Description 1 E201 Communication error between indoor and outdoor unit (Tracking failure or the setting quantity/address of indoor unit in outdoor unit’s PCB differs from the quantity/address of installed indoor unit.) 2 E202 Communication error between indoor and outdoor unit. (All the indoor communication error, outdoor communication cable error.) 3 E203 Communication error between main and sub micom or communication error between main and sub outdoor units.
3. How to take measures for each symptom 3-1 Communication error between indoor and outdoor units during tracking (Error Code : E201) 1. How to check Compare the number of setting values of setup switch for the number of indoor unit installed for the outdoor unit PCB and the number of actual indoor units installed.
Troubleshooting 3-2 Communication error between indoor and outdoor units after completing tracking (Error Code : E202) 1. How to check Press the reset key (K3) of the outdoor unit PCB then check the display part. Is there any response from indoor units on the display part during tracking? No After 2 minutes, find an indoor unit than shows a communication error then check if PCB address setup has overlapped.
Troubleshooting 3-3 Communication error (1 minute) between Main and Sub Micoms of an Outdoor unit or among Outdoor Units (Error Code : E203) 1. Check items 1) Is there power on outdoor unit inverter PBA? 2) Connect the power cable/check the fuse 3) Is there any problem on communication cable between outdoor unit inverter (CN31) <-> Main PBA (CN39)? 4) Check the communication cable connection 2. Check procedure Turn off the power and turn it on again after 30 seconds.
Troubleshooting 3-4 Outdoor temperature sensor error (Error Code : E221, E231, E251, E269) Error code Error explanation 1. Check items E221 Outdoor unit temperature sensor Error 1) Check the temperature sensor connector E231 Outdoor unit COND.sensor Error 2) Check the resistance value of outdWoor temperature E251 Outdoor unit discharge sensor Error 3) When E221 occurs, please recheck display two minutes later. If E221 is displayed two minutes later, please follow the below check produre.
Troubleshooting 3-5 High pressure temperature sensor error (Open/Short) (Error Code : E291) Low pressure temperature sensor error (Open/Short) (Error Code : E296) 1. High/low pressure sensor OPEN/SHORT error determination method 1) Identifies from when power is supplied or 2 minutes after RESET, and only when set is stopped. 2) An OPEN/SHORT error will occur if the input voltage standard exceeds 0.5V ~ 4.95V range 2.
Troubleshooting 3-6 Compressor down by antifreeze control (Error Code: E403) 1. Check items 1) Check if the indoor fan/motor is working properly 2) Check if the indoor EEV is working properly 3) Check the indoor heat exchanger IN/OUT sensor 4) Check if the indoor air inlet blocked 2.
Troubleshooting 3-7 Comp. down due to a protective control of high pressure (Error Code : E407) 1. How to check Test operation Connect S-net and Manifold gauge (Mandatory) Are service valves open? No Open the service valve Yes Do the values of S-net and Manifold gauge correspond? No Replace a high pressure sensor Yes Does indoor/outdoor EEV operate well? No Check the relevant EEV Yes Is there any clogged place in the piping (ex.
Troubleshooting 3-8 Comp. down due to a protective control of low pressure (Error Code : E410) 1. How to check Test operation Connect S-net and Manifold gauge (Mandatory) Are service valves open? No Open the service valve Yes Do the values of S-net and Manifold gauge correspond? No Replace a high pressure sensor Yes Does indoor/outdoor EEV operate well? No Check the relevant EEV Yes Is there any clogged place in the piping (ex.
Troubleshooting 3-9 Comp. down due to a discharge temperature sensor of a compressor (Error Code : E416) 1.
Troubleshooting 3-10 Reverse phase detection error (3Phase outdoor unit) (Error Code : E425) 1. When power is on, it checks the power status used for 3-phase power compressor. When the order of 3-phase L1(R) – L2(S) – L3(T) is changed (reversed) or there is a phase that does not receive power (phase fail), it will display [E425] and the air conditioner will stop operating. 1) Check the voltage on L1(R) – L2(S) phase/ L1(R) – L3(T) phase/ L2(S) – L3(T) phase.
Troubleshooting 3-11 ESC EEV open error (Error Code : E438) 1.
Troubleshooting 3-12 Refrigerant leakage error (Error Code : E439) 1. Determining high/low-pressure sensor OPEN/SHORT error 1) Identifies from when power is supplied or 2 minutes after RESET, and only when set is stopped. 2) An E439 error will occur if the input voltage standard ranges of 0.5V ~ 4.95V of both the high- and low-pressure sensors are exceeded. 3) Will occur if the measured value of both high/low-pressure sensors is 1kgf/cm2G 2.
Troubleshooting 3-13 Prohibition of the compressor operation due to outdoor temperature (Error Code : E440, 441) 1. How to check The above error code is not caused by a product's problem but a function to protect the product by limiting the available temperature range so please refer to the usable temperature range in the product manual.
Troubleshooting 3-15 Outdoor unit fan error (Error Code : E458, 475) 1. Check items 1) Check the connection of the fan connector (CN90, CN 91) 2) Check the voltage of the fan motor connector on outdoor unit inverter PBA 3) Check the power connection on outdoor unit inverter PBA 4) Check the fan motor (Motor connector must be disconnected after 30 seconds from power off) 5) For models with single fan, connector must be connected to CN90 (Fan2 error will not occur) 2.
Troubleshooting 3-16 Comp down due to OLP temperature control (Error Code : E463) 1.
Troubleshooting 3-17 Compressor starting/rotation error (Error Code : E461, E467) 1. Check items 1) Check the power and restarting after power reset 2) Check for compressor and compressor wire assembly 3) Check for compressor wire problem 2. Check procedure Turn off the power and turn it on again after 30 seconds Check the power and restarting after power reset 1. Is there any problem on input power? (1phase: 220Vac. 3phase: 380Vac) 2.
Troubleshooting Compressor starting/rotation error (Error Code : E461, E467) (cont.) Cont. Yes Is the compressor wire assembled in following color? U: RED, V: BLU, W: YEL o Check for wire disconnection on PBA and COMP. 2. Is the terminal within the compressor wire housing firmly assembled? 3. Is there any problem, such as disconnected housing or cut, on some of the compressor wire? No 1. Change the compressor wire o Turn on the power o End service 2.
Troubleshooting 3-18 Current error / PFC overload error (Error Code : E462, E484) 1. Check items 1) Check the power and restarting after power reset 2) Check the outdoor unit installation and environments o Check if the outdoor unit inverter PBA related wires are disconnected.
Troubleshooting 3-19 IPM over current error (Error Code : E464) 1. Check items 1) Check the power and restarting after power reset 2) Check the outdoor unit installation and environments o Check if the outdoor unit inverter PBA related wires are disconnected. Check the installation environment 3) Check for indoor unit installation environment 4) Check for open service valve 5) Check the assembly status of the compressor and compressor wire 6) Check the compressor wire 2.
Troubleshooting IPM over current error (Error Code : E464) (cont.) Cont. Is the service valve completely open? Are the compressor wires correctly connected to the compressor? No No Open the valve Check the connection of the compressor Yes Check the compressor 1. Is resistance value between phases of the compressor same? (U l V, U lW, V lW) 2. Is the wire connected to compressor normal? (disconnection, wrong connection) 3. Is there any noise when the compressor rotates? No 1.
Troubleshooting IPM over current error (Error Code : E464) (cont.) Cont. Yes Check the compressor wire 1. Is the compressor wire assembled in following color? U: RED, V: BLU, W: YEL o Check for wire disconnection on PBA and COMP. 2. Is the terminal within the compressor wire housing firmly assembled? 3. Is there any problem, such as disconnected housing or cut, on some of the compressor wire? No 1. Change the compressor wire o Turn on the power o End service 2.
Troubleshooting 3-20 DC-Link voltage under/over error (Error Code : E466) 1. Check items 1) Check the power and restarting after power reset o Is there any problem with input power? (1 Phase: 220Vac, 3 Phase: 380Vac) o Does error occur again during operation after power reset? 2) Check the power cable connection, and joint cable connection 3) Check the reactor and reactor wire 4) Check the fuse on the EMI PBA 5) Check the Terminal block, power terminal cabinet and the power wire assembly 2.
Troubleshooting DC-Link voltage under/over error (Error Code : E466) (cont.) Cont. Yes Is EMI PBA fuse disconnected? Yes Change the fuse [AM666FXMDCH series] Yes Check the terminal block and the power terminal cabinet 1. Is screw on the terminal block firmly assembled? 2. Is power cable and terminal on the power terminal cabinet firmly assembled? Yes 1. Connect the terminal block screw and the power cable o Check for normal operation o End service 2.
Troubleshooting 3-21 Gas leak error (Error Code : E554) 1. Check items 1) Check the power and restarting after power reset o Is there any problem with input power? (1 Phase: 220Vac, 3 Phase: 380Vac) o Does error occur again during operation after power reset? 2) Check the compressor and compressor wire assembly 3) Check the outdoor unit installation and environments o Check if the outdoor unit inverter PBA related wires are disconnected.
Troubleshooting Gas leak error (Error Code : E554) (cont.) Cont.
Troubleshooting 3-22 Others 1. Compressor Vlimit error: E465 If the compressor operation is abnormal, change the compressor and check for normal operation o If the compressor operation is normal, check the assembly between heat sink plate and if there is no problem, change the inverter PBA 2. Current sensor error: E468 EEPROM Uploading at indoor main PBA, Check if PCB operation is normal 3.
͑غPCB Diagram غOutdoor Unit PCB - Main PCB 48 Samsung Electronics
PCB Diagram Main PCB (cont.
PCB Diagram Outdoor Unit PCB (cont.) - Inverter PCB : 1Phase II ① Reactor-A1/B1 #Reactor-A2 : WHT #Reactor-B2 : WHT ② Reactor-A2/B2 #Reactor-A2 : BLK #Reactor-B2 : BLK ③ CN31-MAIN COMM #1 : RXD#2 : TXD #3 : GND, #4 : DC 5V #5 : DC 12V, #6 : INV. SMPS signal ④ CN22-Downloader #1 : RXD_ATARO, #2 : TXD_ATARO #3, #8 : N.C, #4~#7 : DATA signal #9 : GND, #10 : DC 5V ⑤ CN21-DAC/ENCODER For S/W engineer debugging ⑥ CN91-FAN2 #1 : DC 360V #2 : N.
PCB Diagram Outdoor Unit PCB (cont.
͑غWiring Diagram غ1 Phase This Document can not be used without Samsung’s authorization.
͑غReference Sheet 1.
Reference Sheet 2.
͑غCheck Operation & Amount of Refrigerant Automatically Checking 1. Check Operation 1-1 Check Operation 1) What is the Check Operation? DVM MINI main components defective check and check the status of the installation, provide guidelines that can promptly and accurately resolve the problems that may occur in the field. If does not end the Automatic Commissioning, normal operation is impossible to enter, it should protect the system from the abnormal state. ("UP") 2) Check operation Preliminary checking.
Check Operation & Amount of Refriherant Automatically Checking ※ If out of warranty coverage and bounds, installation, operation according to the conditions the some of items displayed as "Undetermined" and judgment is not. Ex) system that module installed : If the outdoor unit is not operation by the load on the indoor and outdoor, corresponding Sub Outdoor Unit does not judge the inspection entries. (However, Indoor / Outdoor Temperature sensor and Pressure sensor judgment is available.
Check Operation & Amount of Refriherant Automatically Checking 1-2 How to troubleshoot of the "Undetermined" 1) Indoor Unit Temperature sensor C Inspection item : Indoor temperature of each Indoor Unit, EVA In / Out Temperature sensor C Error code: None (The resulting report "Undetermined") C Determine the status of the Temperature sensor of the Indoor Unit installed before the compressor start.
Check Operation & Amount of Refriherant Automatically Checking 2) Outdoor Unit Temperature sensor C Inspection item : Outdoor temperature of each Outdoor Unit, Cond_Out, Suction, Liquid pipe temperature sensor C Error code: None (The resulting report "Undetermined") C Determine the status of the Temperature sensor of the each Outdoor Unit installed before the compressor start. C If the judgment of Outdoor Unit Temperature sensor is "Undetermined" : Checking in accordance with the following order.
Check Operation & Amount of Refriherant Automatically Checking 3) Pressure sensor C Inspection item : High/Low Pressure sensor of the independent installed Outdoor Unit. CError code: None (The resulting report "Undetermined") C Determine the status of the Pressure sensor of the independent installed Outdoor Unit before the compressor start. C If the judgment of Outdoor Unit Pressure sensor is "Undetermined" : Checking in accordance with the following order.
Check Operation & Amount of Refriherant Automatically Checking 4) Abnormal operation of the Compressor C Inspection item : Operation current of Outdoor Unit Compressor. C Error code: None (The resulting report "Undetermined") C Determine the status of the operating current of the each Outdoor Unit Compressor. C If the judgment of operation current of Outdoor Unit Compressor is "Undetermined" : Checking in accordance with the following order.
Check Operation & Amount of Refriherant Automatically Checking 5) Cycle status C Inspection item : Cycle status of Outdoor Unit. C Error code: None (The resulting report "Undetermined") C Determine the Cycle status of the each Outdoor Unit. C If the judgment of Cycle status is "Undetermined" : Checking in accordance with the following order. Commissioning results, is Valve and Pressure sensor normal? No Check the corresponding Valve /Sensor and Compressor.
Check Operation & Amount of Refriherant Automatically Checking 6) 4Way Valve C Inspection item : 4Way Valve of Outdoor Unit. C Error code: None (The resulting report "Undetermined") C Determine the 4Way Valve operation status of the each Outdoor Unit. C If the judgment of 4Way Valve is "Undetermined" : Checking in accordance with the following order. Commissioning results, is Valve and Pressure sensor normal? No Check the corresponding Pressure sensor.
Check Operation & Amount of Refriherant Automatically Checking 7) Main EEV C Inspection item : Main EEV of Outdoor Unit.(Automatic Commissioning : Heating only ) C Error code: None (The resulting report "Undetermined") C Determine the Main EEV operation status of the each Outdoor Unit. C If the judgment of Main EEV is "Undetermined" : Checking in accordance with the following order. No COMMISSIONING RESULTS, IS VALVE AND PRESSURE SENSOR NORMAL? Check the Valve and Pressure sensor.
2. Amount of Refrigerant Automatically Checking Through the detect operation is the ability to verify automatically for the amount of refrigerant. Start "K2" Tact Switch : Press the 5 times.
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