Page 1 SYSTEM AIR CONDITIONER OUTDOOR UNIT AM072/096/120/144/168/216/240BXV*** AIR CONDITIONER CONTENTS 1. Precautions ..........1 2. Product Specifications ......3 3. Disassembly and Reassembly ...27 4. Troubleshooting ......... 63 5. PBA Diagram and Parts List .....176 6. Wiring Diagram ......... 192 7. Piping Diagram ........202 8.
Page 2: Table Of Contents
Contents 1. Precautions..........................1 1-1 Precautions for the Service ...........................1 1-2 Precautions for the Static Electricity and PL .....................1 1-3 Precautions for the Safety ..........................1 1-4 Precautions for Handling Refrigerant for Air Conditioner ..............2 1-5 Precautions for Welding the Air Conditioner Pipe ..................2 1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant ..........
Page 3 Contents 4. Troubleshooting ........................63 4-1 Check-up Window Description .........................63 4-2 Service Operation ............................64 4-2-1 Special Operation .......................................64 4-2-2 DVM S Models EEPROM Code Table ..............................71 4-2-3 Number Display Method (Outdoor Unit, MCU, Cable remote control, wall-mount, etc.) ......72 4-3 Appropriate Measures for Different Symptom ..................78 4-3-1 Outdoor Unit Test Operation Flow..............................78 4-3-2 Main PBA has no power phenomenon .............................81 4-3-3...
Page 4 Contents 4-3-39 CCH wire breaking error ...............................120 4-3-40 Fan motor starting error ........................122 4-3-41 Fan motor locking error ........................124 4-3-42 Momentary Blackout error ............................126 4-3-43 Outdoor Fan Motor overheating .....................127 4-3-44 Fan PBA IPM overheating error ......................128 4-3-45 Compressor starting error ........................129 4-3-46 COMP Overcurrent error .................131 4-3-47...
Page 5 Contents 5-9 PF8 Inv.Integration F POWER ........................ 186 5-10 PF8_20C INV J POWER ..........................188 5-11 PF8_20C INV F POWER .......................... 189 5-11 PF9_20C INV J POWER ...........................190 5-11 PF9_20C INV F POWER ...........................191 6. Wiring Diagram........................192 6-1 AM072BXVGF*/AA, AM072BXVGJ*/AA ....................192 6-2 AM096/120/144BXVGF*/AA, AM096/120/144/168BXVGJ*/AA ............
Page 6 Contents 9. Test Operation ........................304 9-1 Auto Trial Operation ..........................304 9-1-1 Overview of Auto Trial Operation ..............................304 9-1-2 Auto Trial Operation Flow Chart ................................. 307 9-1-3 How to resolve NG items ..................................308 9-2 Amount of refrigerant automatically checking .................. 318 10.
Page 7: 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 8: 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 9: Product Specifications
DVM S2. In addition to this technology, it means the connectivity with WindFree TM, but also the connectivity of DVM S2 that can be freely compatible to our all indoor units and connect up to 64 indoor devices. Samsung DVM S2 offers innovative features to benefit the indoor comfort as well operational costs of the system through technological advances such as :...
Page 10 Product Specifications 2-1 Feature of Product (cont.) 2-1-1 Feature (cont.) Samsung DVM S2 offers innovative features to benefit the indoor comfort as well operational costs of the system through technological advances such as : Advanced Flash Injection More powerful heating performance will provide ultimate comfort.
Page 11: Structure Of Product (Am***Bxv*F*)
2-1 Feature of Product (cont.) 2-1-3 Structure of product (AM***BXV*F*) Small size Heat exchanger CONTROL BOX 4-WAY V/V Accumulator Oil separator Intercooler Gas Pipe Compressor Liquid pipe Large size Heat exchanger CONTROL BOX 4-WAY V/V Accumulator Oil separator Intercooler Compressor Gas Pipe Samsung Electronics...
Page 12 Product Specifications X-Large size Heat exchanger Accumulator 4-WAY V/V CONTROL BOX Oil separator Compressor Intercooler Gas Pipe Samsung Electronics...
Page 13: Structure Of Product (Am***Bxv*J*)
2-1-3 Structure of product (AM***BXV*J*) Small size Heat exchanger CONTROL BOX 4-WAY V/V TRANS BOX Accumulator Oil separator Intercooler Gas Pipe Compressor Liquid pipe Large size Heat exchanger CONTROL BOX 4-WAY V/V Accumulator TRANS BOX Oil separator Intercooler Compressor Gas Pipe Samsung Electronics...
Page 14 Product Specifications X-Large size Heat exchanger Accumulator 4-WAY V/V CONTROL BOX Oil separator TRANS BOX Compressor Intercooler Gas Pipe Samsung Electronics...
Page 15: Model Names Of Indoor/Outdoor Unit
※ You can connect maximum 64 indoor units to the outdoor unit. Maximum quantity of connectable indoor unit is set to 64 since outdoor unit only support up to 64 communication address. Indoor unit address can be assigned from 0~63. If the indoor unit address was assigned from 64~79, E201 error will occur. ※ Maximum 32 Wall-mount type indoor units with EEV (AM∗∗∗∗NQD∗∗∗, AM∗∗∗NVD∗∗∗) can be connected. Samsung Electronics...
Page 16: Outdoor Unit
2-2 Model names of Indoor/Outdoor Unit (cont.) 2-2-3 Outdoor unit ■ DVM S2 HP(208~230V) Capa Capa Model Name Model Model Name Model [TON] [TON] AM288BXVGFH/AA AM312BXVGFH/AA AM072BXVGFH/AA AM336BXVGFH/AA AM360BXVGFH/AA AM096BXVGFH/AA AM384BXVGFH/AA AM120BXVGFH/AA AM408BXVGFH/AA AM144BXVGFH/AA AM432BXVGFH/AA AM168BXVGFH/AA AM192BXVGFH/AA AM216BXVGFH/AA AM240BXVGFH/AA AM456BXVGFH/AA AM480BXVGFH/AA AM264BXVGFH/AA Samsung Electronics Samsung Electronics...
Page 17 2-2-3 Outdoor unit (cont.) ■ DVM S2 HP(460V) Capa Capa Model Name Model Model Name Model [TON] [TON] AM288BXVGJH/AA AM312BXVGJH/AA AM072BXVGJH/AA AM336BXVGJH/AA AM360BXVGJH/AA AM096BXVGJH/AA AM384BXVGJH/AA AM120BXVGJH/AA AM408BXVGJH/AA AM144BXVGJH/AA AM432BXVGJH/AA AM168BXVGJH/AA AM192BXVGJH/AA AM216BXVGJH/AA AM240BXVGJH/AA AM456BXVGJH/AA AM480BXVGJH/AA AM264BXVGJH/AA Samsung Electronics Samsung Electronics...
Page 18 2-2 Model names of Indoor/Outdoor Unit (cont.) 2-2-3 Outdoor unit (cont.) ■ DVM S2 HR(208~230V) Capa Capa Model Name Model Model Name Model [TON] [TON] AM288BXVGFR/AA AM312BXVGFR/AA AM072BXVGFR/AA AM336BXVGFR/AA AM360BXVGFR/AA AM096BXVGFR/AA AM384BXVGFR/AA AM120BXVGFR/AA AM408BXVGFR/AA AM144BXVGFR/AA AM432BXVGFR/AA AM168BXVGFR/AA AM192BXVGFR/AA AM216BXVGFR/AA AM240BXVGFR/AA AM456BXVGFR/AA AM480BXVGFR/AA AM264BXVGFR/AA Samsung Electronics...
Page 19 2-2 Model names of Indoor/Outdoor Unit (cont.) 2-2-3 Outdoor unit (cont.) ■ DVM S2 HR(460V) Capa Capa Model Name Model Model Name Model [TON] [TON] AM288BXVGJR/AA AM312BXVGJR/AA AM072BXVGJR/AA AM336BXVGJR/AA AM360BXVGJR/AA AM096BXVGJR/AA AM384BXVGJR/AA AM120BXVGJR/AA AM408BXVGJR/AA AM144BXVGJR/AA AM432BXVGJR/AA AM168BXVGJR/AA AM192BXVGJR/AA AM216BXVGJR/AA AM240BXVGJR/AA AM456BXVGJR/AA AM480BXVGJR/AA AM264BXVGJR/AA Samsung Electronics...
Page 20: Combination And Connection Ratio Limitation
※ Normal Units : Cassette, Duct, Ceiling, Console, Wall Mounted, ERV+, Floor stand. ※ For wall mounted with EEV, it is possible to install a maximum of 32 units ※ ERV (not ERV+ ) can be installed separately without the need to lay refrigerant pipe. Samsung Electronics...
Page 21: Product Specification
BLDC Motor BLDC Motor BLDC Motor Fan Motor Output x n W x n 630 x 1 620 x 2 620 x 2 620 x 2 620 x 2 630 x 2 630 x 2 630 x 2 Samsung Electronics...
Page 22 However, if the outdoor unit is installed below the indoor unit, cooling operation is possible only at 5 degrees or higher. ) It is a possible condition when satisfied, and if the condition is not satisfied, the temperature range is -5°C to 50°C. Samsung Electronics...
Page 23 BLDC Motor BLDC Motor BLDC Motor Fan Motor Output x n W x n 630 x 1 620 x 2 620 x 2 620 x 2 620 x 2 630 x 2 630 x 2 630 x 2 Samsung Electronics...
Page 24 However, if the outdoor unit is installed below the indoor unit, cooling operation is possible only at 5 degrees or higher. ) It is a possible condition when satisfied, and if the condition is not satisfied, the temperature range is -5°C to 50°C. Samsung Electronics...
Page 25 BLDC Motor BLDC Motor BLDC Motor Fan Motor Output x n W x n 630 x 1 620 x 2 620 x 2 620 x 2 620 x 2 630 x 2 630 x 2 630 x 2 Samsung Electronics...
Page 26 However, if the outdoor unit is installed below the indoor unit, cooling operation is possible only at 5 degrees or higher. ) It is a possible condition when satisfied, and if the condition is not satisfied, the temperature range is -5°C to 50°C. Samsung Electronics...
Page 27 BLDC Motor BLDC Motor BLDC Motor Fan Motor Output x n W x n 630 x 1 620 x 2 620 x 2 620 x 2 620 x 2 630 x 2 630 x 2 630 x 2 Samsung Electronics...
Page 28 However, if the outdoor unit is installed below the indoor unit, cooling operation is possible only at 5 degrees or higher. ) It is a possible condition when satisfied, and if the condition is not satisfied, the temperature range is -5°C to 50°C. Samsung Electronics...
Page 29: Accessory And Option Specifications
- Touch Simple Type Receiver KIT(Duct Only) MRK-A10N DVM, CAC Touch Centralized Controller MCM-A300N DVM, CAC Centralized Control Onoff Controller MCM-A202DN DVM, CAC System Wi-Fi Kit 2.0 MIM-H04EN DVM, CAC DMS2.5 MIM-D01AN DVM, CAC Integrated management System S-NET3 MST-P3P DVM, CAC Samsung Electronics...
Page 30 DVM, CAC Modbus Interface Module MIM-B19N DVM, CAC Thermostat Kit MIM-A60N DVM, CAC Installation /Test run S-Converter MIM-C02N DVM, CAC Solution External Room Sensor MRW-TA DVM, CAC Operation Mode Selection Switch MCM-C200 Others MTFC MCM-C210N (Multi Tenant Function Controller) Samsung Electronics...
Page 31: Piping
~56kW, ~4 Indoor units MCU-S4NEE2N ~56kW, ~4 Indoor units MCU-S2NEK1N ~56kW, ~2 Indoor units MEV-E24SA 1 Indoor MEV-E32SA MXD-E24K132A MXD-E24K200A 2 Indoor EEV KIT MXD-E32K200A MXD-E24K232A MXD-E24K300A 3 Indoor MXD-E32K224A MXD-E32K300A MXD-A38K2A 8~12HP PDM KIT MXD-A12K2A 14~16HP MXD-A58K2A 18~26HP Samsung Electronics...
Page 32: Controller & Control Accessory Compatibility
Module Controller MCM-A00N CHILLER ONLY FCU KIT MIM-F00N CHILLER ONLY FCU Interface Module MIM-F10N CHILLER ONLY Installation/ S-Converter MIM-C02N MIM-C02 DVM, CAC Test run Solution External Room Sensor MRW-TA MRW-TA DVM, CAC Others Operation Mode Selection Switch MCM-C200 MCM-C200 Samsung Electronics...
Page 33: Disassembly And Reassembly
∙ For H/R model, When the pipe length (including elbow) between an outdoor unit and the farthest indoor unit exceeds 90m, you must increase the size of the liquid pipe by one grade among the pipes(main pipe) which connects between the outdoor unit to the first branch joint. Samsung Electronics...
Page 34: Disassembly And Reassembly
Use the inspection window on the Main PBA to check the following. - Error code - Operation status (Key Switch K1- K4) - Trial operation - Pump down operation - S-NET connection (Specific operation information and the cycle- related status value can be viewed.) Samsung Electronics...
Page 35 Disassembly and Reassembly 3-2 Disassembly and Reassembly (cont.) 3-2-1 Checking the Device Condition (cont.) Work Procedure Remark 1) Removing the Cabinet Front Low. - Unfasten the 10 scerws on the Cabinet Front low. Samsung Electronics...
Page 36: Removal Instructions For Cabinet
- The Cabinet Front Low, is hung on the side frame, using supportive tabs. - Hold the handle press right side of cabinet and push up. ('A' direction) - Carefully remove the Cabinet. ('B' direction) 2) The Cabinet has been removed. Samsung Electronics...
Page 37: Disconnecting The Power Supply
Cabinet, be sure to cut off the powersupply first. - To disconnect the power supply, remove the Cabinet Front Low and then remove the Control Box cover. Unfasten the four screws on the Control Box cover. Samsung Electronics...
Page 38 Use insulation tape to wrap each power cable before storage to prevent the cables from coming into contact with each other. The front view of the device when it is ready for internal repair after the power supply has been disconnected is shown below. Samsung Electronics...
Page 39: Removal Instructions For Guard Fan
- Small model has one, Large model has two. - Each Guard Fan is fixed with six screws on the cabinet top Unfasten the six screws on each of the Guard Fans. Lift and separate the Guard Fans. Samsung Electronics...
Page 40: Removal Instructions For Fan And Motor
- Lift and separate the Fan Propeller. 2) Removing a motor. - A fan has been removed as shown. - To remove a motor, first remove moter cables. ※ After inspection, be sure to place the connectors inside the C-BOX to prevent rainwater damage. Samsung Electronics...
Page 41 - Remove the holders fixing the wires. - Cut out the cable tie fixing the wires. - Unfasten the four screws on the motor. - Lift and separate the motor. Samsung Electronics...
Page 42 DB62-08751E AM080/AM100 AM120/AM140 DB62-08751D EVI bypass valve AM120/AM140 DB73-00264A Hot gas valve AM080/AM100 RUBBER DB67-01527B Accum oil return valve AM120/AM140 DB67-01527A Discharge temp. sensor Suction temp. sensor EVI in temp. sensor EVI out temp. sensor Liquid temp. sensor Samsung Electronics...
Page 43 EVI EEV AM160/AM200 DB62-03808F AM160 RUBBER DB73-00323A EVI bypass valve AM200 DB61-05177A Hot gas valve AM160/AM200 DB67-01527C Accum oil return valve Discharge temp. sensor Suction temp. sensor EVI in temp. sensor EVI out temp. sensor Liquid temp. sensor Samsung Electronics...
Page 44 AM220 DB62-08751D EVI valve AM260 DB62-03808F Hot gas valve AM220 DB67-01527B RUBBER Accum oil return valve AM260 DB67-01527A Discharge1 temp. sensor Discharge2 temp. sensor Suction temp. sensor EVI in temp. sensor EVI out temp. sensor Liquid temp. sensor Samsung Electronics...
Page 45 Add INSU HOLDER WIRE on ASSY TUBE DISCHARGE. Tie on INSU with cable tie. - HIGH PRESSURE SWITCH - HOT GAS VALVE COIL Tie on INSU HOLDER SENSOR on ASSY TUBE DISCHARGE with cable tie. - ACCUM OIL RETURN VALVE COIL Samsung Electronics...
Page 46 Disassembly and Reassembly [Instructions for wire binding] ■ 1 COMP Models(cont.) Fix on SOUNDPROOFING FELT with velcro. - MAIN EEV - EVI EEV Tie them in order with HOLDER WIRE. Samsung Electronics...
Page 47 - HOT GAS VALVE COIL Tie on HOLDER SENSOR on ASSY TUBE DISCHARGE - HIGH PRESSURE SWITCH * 2EA - HOT GAS VALVE COIL - ACCUM OIL RETURN VALVE COIL Fix on SOUNDPROOFING FELT with velcro. - MAIN EEV - EVI EEV Samsung Electronics...
Page 48 Disassembly and Reassembly [Instructions for wire binding] ■ 2 COMP Models(cont.) Tie them in order with HOLDER WIRE. Samsung Electronics...
Page 49 ASSY TUBE TANK- OIL SEPARATOR ASSY TUBE TANK-ACCUMULATOR ASSY TUBE RETURN- ACCUM OIL ASSY TUBE DISCHARGE ASSY TUBE SUCTION ASSY TUBE CONNECTOR COOLING ASSY TUBE 4WAY ASSY TUBE EEV ASSY TUBE SUBCOOLER ASSY TUBE SERVICE GAS ASSY TUBE SERVICE LIQUID Samsung Electronics...
Page 50 ASSY TUBE BYPASS ASSY TUBE TANK- OIL SEPARATOR ASSY TUBE RETURN- ACCUM OIL ASSY TUBE DISCHARGE ASSY TUBE SUCTION ASSY TUBE 4WAY ASSY TUBE CONNECTOR COOLING ASSY TUBE EEV ASSY TUBE SERVICE GAS ASSY TUBE SERVICE LIQUID ASSY TUBE SUBCOOLER Samsung Electronics...
Page 51 ASSY TUBE RETURN- ASSY TUBE TANK- OIL SEPARATOR ASSY TUBE RETURN- ACCUM OIL ASSY TUBE SUCTION ASSY TUBE DISCHARGE ASSY TUBE 4WAY ASSY TUBE CONNECTOR COOLING ASSY TUBE CONNECTOR ASSY TUBE SERVICE GAS ASSY TUBE EEV ASSY TUBE SUBCOOLER Samsung Electronics...
Page 52: Removal Instructions For Compressor
- Use a screwdriver to pull the upper part of the covertowards you and remove the cover, as shown in the image. 46cc, 66cc compressor Samsung Electronics...
Page 53 Thermistor - Cut the compressor side port (discharge, VI, suction) using a ratchet cutter.Check the cutting point shown in the images. * Do not use saws or grinders. Copper chips may go into the set and cause failure. Samsung Electronics...
Page 54 - Use a torch to heat and separate the three welded joints con- necting the compressor to the pipes. ※ Caution: Taping the cutting surface to prevent oil overflow and foreign matter inflow into the compressor. - After removing compressor, Heat and separate the remaining pipe using a torch. Samsung Electronics...
Page 55: Compressor Exchange Order
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...
Page 56 - Problem of that is blocked in oil circulation of [remaining oil of compressor that broke down below o.7lb(0.3kg)] compressor if is light more than 1.8lb(0.8kg) than weight of compressor that weight of compressor that is changed to locality is changed newly inspects oil circulating system because possibility occurred is high. Samsung Electronics...
Page 57: Removal Instructions For The Accumulator
For C/BOX disassembly, separate the refrigerant cooling pipe with torch or remove the screw on the Heat-sink on Inverter PCB. Welding points for Cooling pipe disassembly Screw points for Cooling pipe disassembly Screw points for C/BOX disassembly Ready to replace parts behind C/BOX Samsung Electronics...
Page 58 Before using the torch, remove the screws from the brackets connected to the accumulator. After removing the screw, use a welding torch to separate the pipe parts. - Refer to the reference sheet for the shape of the pipe parts and welding points. Samsung Electronics...
Page 59 - Separate 1 screws and 2 welds for ASSY TUBE ACCUM OIL RETURN replacement. ASSY TUBE RETURN - ACCUM OIL ASSY TUBE OIL RETURN - Separate 2 screws and 4 welds for ASSY TUBE OIL RETURN replacement. 1comp model 2comp model ASSY TUBE RETURN-OIL Samsung Electronics...
Page 60 TUBE CHECK OUT replacement. 1comp model 2comp model ASSY TUBE CHECK OUT ASSY TUBE OIL SEPARATOR - Separate 4 screws and 6 welds for ASSY TUBE OIL SEPARATOR replacement. 1comp model 2comp model ASSY TUBE TANK- OIL SEPARATOR Samsung Electronics...
Page 61 - Separate 1 screw and 4 welds. 1comp model 2comp model ASSY TUBE BYPASS ASSY TUBE SUBCOOLER - Disconnect Main EEV coil wire & EVI in/out temp. sensor wires. - Separate 2 screws and 3 welds. ASSY TUBE SUBCOOLER Samsung Electronics...
Page 62: Removal Instructions For The Control Pba
3-2 Disassembly and Reassembly (cont.) 3-2-9 Removal Instructions for the Control PBA Work Procedure Remark - The device control PBA is located in the upper part of the Control Box. - 1, 2 points remove the connectors from the control PBA Samsung Electronics...
Page 63: Removal Instructions For The Control Panel Assy
- The Control Box consists of a control unit on the front and a Control Panel Assy power module inside the Box. - To perform power supply-related repair service for the PBA, you must detach the Control Panel Assy on the front. Samsung Electronics...
Page 64: Removal Instructions For The Inverter Pba
※ After inspection, check the condition of grease pplied. Unfasten the two screws on the case Good No Good If Thermal Grease is not applied evenly IMP due to the cooling performance may cause malfunction of the product. Samsung Electronics...
Page 65: Removal Instructions For The Fan Pba
3-2-12 Removal Instructions for the Fan PBA Work Procedure Remark - Remove the power and control wires and connectors from the Fan PBA. - To replace with a module assembled with the case, heat sink and PBA, unfasten the four screws on the case. Samsung Electronics...
Page 66: Removal Instructions For The Dc Reactors And Emi Pba
Reactors. (applicable to both Reactors #1 and #2). DC_Reactor #1 DC_Reactor #2 - Remove the connectors inside the EMI PBA, and then unfasten the four screws fixing the case on the PBA. EMI PBA #2 EMI PBA #1 Samsung Electronics...
Page 67: 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...
Page 68: 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. Samsung Electronics...
Page 69: Troubleshooting
Supplying DC 5V to other component S/W download for MIC202 Supplying DC 12V to other component DRED PBA connecting Gas leak detection using MIM-B14 External control using MIM-B14 Option switch F1/F2/OF1/OF2/R1/R2 Wire connecting EEPROM PBA connecting Central controller connecting(F1/F2) Samsung Electronics...
Page 70: Service Operation
- Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction. Samsung Electronics...
Page 71 0 43 MPa → 0, 4, 3 6 times Discharge temperature (Compressor 1) 87 °C → 0, 8, 7 7 times Discharge temperature (Compressor 2) 87 °C → 0, 8, 7 8 times IPM temperature (Compressor 1) 87 °C → 0, 8, 7 Samsung Electronics...
Page 72 Indoor unit: “A” MCU: Indoor unit: “0” Address “C” MCU: “1” (ex: 07) SEG1 SEG2 SEG3,4 9 times Manually assigned address of the units MANU Indoor unit: “A” Indoor unit: “0” Address (ex: 15) ※ I/U : Indoor unit Samsung Electronics...
Page 73 ※ Low pressure is outside normal limits : Operation is shut down after gas pipe manually closed. Etc. Entry after safety start. (Only the corresponding Outdoor Unit operation.) To pump out more than 2 : Except communication between Outdoor Unit of relevant set after working for one, remainder set makes Pump Out add. Samsung Electronics...
Page 74 Indoor Unit/Outdoor Fan 4Way Valve Open all valves of the system Valves Open all valves of the outdoor unit (Including indoor unit and mcu) Etc. If not turn off the vacuum mode, the start of normal operation is prohibited. Samsung Electronics...
Page 75 Defrost start Defrost start : It is after 10 minutes which Safety Start finishes. Defrost off General defrost operation conditions are the same as. Etc. Defrost shut down and stop the normal pattern of the outdoor unit stop. Samsung Electronics...
Page 76 Outdoor temperature is less than or equal to 10°C : Heating Auto Trial Operation Oil recovery start Oil recovery start : It is after 10 minutes which Safety Start finishes. Etc. Oil recovery shut down and stop the normal pattern of the outdoor unit stop. Samsung Electronics...
Page 77: Dvm S Models Eeprom Code Table
DB92-05092C DB82-06801A AM168BXVGFR DB92-05092C DB82-06802A AM192BXVGFR DB92-05092C DB82-06803A AM216BXVGFR DB92-05092C DB82-06804A AM240BXVGFR DB92-05092C DB82-06805A AM072BXVGJR DB92-05092C DB82-06806A AM096BXVGJR DB92-05092C DB82-06807A AM120BXVGJR DB92-05092C DB82-06808A AM144BXVGJR DB92-05092C DB82-06809A AM168BXVGJR DB92-05092C DB82-06810A AM192BXVGJR DB92-05092C DB82-06811A AM216BXVGJR DB92-05092C DB82-06812A AM240BXVGJR DB92-05092C DB82-06813A Samsung Electronics...
Page 78: Number Display Method (Outdoor Unit, Mcu, Cable Remote Control, Wall-Mount, Etc.)
E206 C001 E206 C002 Error Number, repeat display and other methods of error display ■ How to display alphabetic & numbers on 7-SEG 7-SEG 7-SEG 7-SEG 7-SEG 7-SEG Alphabet Alphabet Alphabet Number Number display display display display display Samsung Electronics...
Page 79 Communication error between indoor and outdoor units (installation number setting error, repeated indoor unit E-201 address, indoor unit communication cable error) Communication error between indoor and outdoor units (Communication error on all indoor unit, outdoor unit E-202 communication cable error) Samsung Electronics...
Page 80 Error on suction sensor 2 (Short or Open) E-346 Error due to operation failure of Fan2 E-347 Motor wire of Fan2 is not connected E-348 Lock error on Fan2 of outdoor unit E-353 Error due to overheated motor of outdoor unit's Fan2 Samsung Electronics...
Page 81 Cooling mode restriction due to low air 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 E-446 Error due to operation failure of Fan1 Samsung Electronics...
Page 82 Leakage of refrigerant(In case the amount of refrigerant charge is insufficient or the refrigerant is leaked) E-702 Error due to closed EEV of indoor unit (1st detection) E-703 Error due to opened EEV of indoor unit (1st detection) E-901 EHS water in sensor(Short or Open) E-902 EHS water out sensor(Short or Open) Samsung Electronics...
Page 83 EHS flow switch error(6th detection)(EHS not resperatable) E-914 EHS thermostat detached E-915 EHS radiating fan unoperate error Trial operation incomplete (UnPrepared) - It will be cleared when trial operation was executed for 1 hour or when automatic inspection is completed. Samsung Electronics...
Page 84: Appropriate Measures For Different Symptom
2. Execute the Auto Trial Operation by Tact Switch. 3. UP display disappears after Auto Trial Operation is complete, normal operation is possible. 4. Auto Trial Operation is completed, if there is a history, normal operation execution. Samsung Electronics...
Page 85 ▪ In case of wiring error (N-phase is changed with one of R, S and T) with the N-phase, will operate the power pro- CAUTION tection function, display E425 or stop the power. This is not a PBA power defect in this case, before PBA replace- ment, please check the power on. Samsung Electronics...
Page 86 - If press the K2, K4 button shortly in the automatic setting mode, it is changed to the manual mode. (Ex. If 10 is indicated and press the K4 button, 11 is indicated and changed to the manual mode.) Samsung Electronics...
Page 87: Main Pba Has No Power Phenomenon
Replace if there is no abnormality. Is the rated voltage of CN101(1pin to 3pin) Check the rated input voltage range connector of the MAIN PBA is supplied to on main terminal block. (R/S/T/N). within ± 10%? Replace the MAIN PBA. Samsung Electronics...
Page 88: Communication Error Between Indoor And Outdoor Units During Tracking
PBA. the indoor unit PBA. * Essential Requirements before Changing PBA in Case of Good Defective Communication Error: Refer to p.50 0.7V 0.7V Samsung Electronics...
Page 89 - Each resistance value should be measured in tens of kΩ~to hundreds of kΩ. - Difference between the two resistance values should be of some number of kΩ. • Judging as defective - One or both are low with tens of Ω - One or both of them is open Samsung Electronics...
Page 90: Communication Error Between Indoor And Outdoor Units After Tracking
Case of Communication Error: Refer to p.50 the indoor unit which interferes with the communication to check and change the indoor unit PBA. Good Defective 0.7V 0.7V Samsung Electronics...
Page 91: Communication Error Between Main And Sub Unit Of Outdoor Unit Or Between Outdoor Units
Indoor unit and Outdoor unit. Check address of Outdoor unit. Re-address Outdoor unit Check operation of LED and 7-SEG each SUB UNIT normally. Replace MAIN PBA Essential Requirements before Changing PBA in Case of Communication Error: Refer to p.59 Samsung Electronics...
Page 92: Internal Communication Error Of The Outdoor Unit C-Box
1) Check the Main PBA : Main PBA TX circuit inspection Does FAN PBA LD22/LD32 (LED) blink? 2) Check the Hub PBA : Hub PBA TX circuit inspection * Service after turn off the Main Power. Replace Main PBA Samsung Electronics...
Page 93: Internal Pba Communication Error Of The Outdoor Unit C-Box
Check the wire connection status. connector and FAN PBA CN501 connector accurately connected? Replace the FAN PBA E206 C003/C004 C003 : Replace the INVERTER PBA 1 C004 : Replace the INVERTER PBA 2 C005 : Replace the Water Hub PBA Samsung Electronics...
Page 94: Mcu Branch Part Setup Error - Inconsecutive Connection With The Use Of 2 Branch Parts
MCU BOX #0 address setup 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 Samsung Electronics...
Page 95: 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 PBA Quantity of Quantity of Indoor Unit Branch Indoor Unit: 3 MCU: 1 Samsung Electronics...
Page 96: Mcu Branch Part Setup Error - Non-Installed Address Setup
Indoor number setup MCU number setup MCU address setup MCU BOX #0 MCU BOX #1 MCU PCB MCU PCB Branch part use setup Indoor unit address Branch A Branch A Samsung Electronics Indoor unit Outdoorunit Indoor unmber setup MCU unmber setup...
Page 97: Setup Error For Mcu Branch Part - Setup Error For Mcu Quantity Used
Address: 1 Address: 2 • Example of MCU address setting error ex) Two among three of MCU address was set to 0 Outdoor Unit PBA Quantity of Quantity of Indoor Unit Branch Indoor Unit:- MCU: 3 Branch Branch Samsung Electronics...
Page 98: 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 Samsung Electronics Branch A...
Page 99: Mcu Branch Part Setup Error - Set As Being Used Without Connection To An Indoor Unit
Adjust the Dip switch that sets up the use of MCU branch part to ‘Not-Used'. After completing resetting, press the outdoor unit's . K3 button to reset or turn off to restart. Branch A 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...
Page 100: 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 Samsung Electronics...
Page 101: 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 PBA Quantity of Quantity of Indoor Branch Indoor Unit: 4 MCU: 1 Samsung Electronics...
Page 102: Mcu/Mcu Subcooler Entrance/Exit Sensor Error (Open/Short)
Separate the connector from the PBA and Temperature(°C) Resistance(KΩ) measure the resistance value between the 2 terminals. 12.1 18.0 Is the resistor value matching with 27.3 “NOTE1” table? 43.0 Replace this part as it is the defective itself. Restart operation after replace the PBA Samsung Electronics...
Page 103: Outdoor Temperature Sensor Error
12.1 CN43 (7, 8) Did the resistance 18.0 value significantly stray from the following 27.3 temperature table? 43.0 Replace this since it is the defective of the outdoor temperature sensor itself. Restart operation after replace the PBA Samsung Electronics...
Page 104: Cond Out Temperature Sensor Error (Open/Short)
CN43(5.6) 12.1 18.0 Did the resistance 27.3 value significantly stray from the following 43.0 temperature table? Replace this part as it is the defective of the outdoor Cond Out sensor itself. Restart operation after replace the PBA. Samsung Electronics...
Page 105: 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 Blocked Sensor Path : the value of the sensor when operating from Change heat exchanger Ass'y stop to heating? Complete Samsung Electronics...
Page 106 Is the Cond Out sensor resistance value reasonable? Defective Sensor : Replace Sensor (Refer to E231) Are there any changes Blocked Sensor Path : the value of the sensor when operating from Change heat exchanger Ass'y stop to heating? Complete Samsung Electronics...
Page 107: Compressor Discharge Or
TOP2 CN45(5,6) 553.0 DIS1 CN43(1,2) DIS2 CN45(3,4) Is the resistor value matching with “NOTE1” table? Replace this part as it is the defective of the Compressor Discharge or Top Temperature sensor itself. Restart operation after replace the PBA Samsung Electronics...
Page 108: Top Temperature Sensor Breakaway Error
(Refer to the “Note 1”) NOTE1 Resistance value Resistance value measure part measure part Replace the PBA Temperature(°C) Resistance(KΩ) 11.2 18.5 32.0 59.0 TOP1 TOP2 200.0 242.0 TOP1 CN43(3,4) 362.0 TOP2 CN45(5,6) 553.0 DIS1 CN43(1,2) DIS2 CN45(3,4) Samsung Electronics...
Page 109: Suction Temperature Sensor Breakaway Error
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 the “Note 1” ) NOTE1 Temperature(°C) Resistance(KΩ) Replace the PBA 12.1 18.0 27.3 43.0 Samsung Electronics...
Page 110: High Pressure Sensor Error (Open/Short)
(Please check by connecting the Manifold gauge to the service valve) High pressure sensor Replace PBA terminal of PBA : Is the voltage between 3 and 4 pins 5V? The ▼ mark is the 1st pin on the PBA. Replace High Pressure sensor Samsung Electronics...
Page 111: Low Pressure Sensor Error (Open/Short)
(Please check by connecting the Manifold gauge to the service valve) Low pressure sensor terminal of PBA : Is the Replace PBA voltage between 3 and 4 pins 5V? The ▼ mark is the 1st pin on the PBA. Replace Low Pressure sensor Samsung Electronics...
Page 112: Suction Temperature Sensor Error (Open/Short)
2 terminals. 12.1 SUCT 18.0 CN44 (1, 2) 27.3 43.0 Is the resistor value matching with “NOTE1” table? Replace this part as it is the defective of the Outdoor Suction sensor itself. Restart operation after replace the PBA. Samsung Electronics...
Page 113: Liquid Pipe Temperature Sensor Error (Open/Short)
2 terminals. LIQUID CN45 (1, 2) 12.1 18.0 27.3 43.0 Is the resistor value matching with “NOTE1” table? Replace this part as it is the defective of the Liquid Pipe Temperature sensor itself. Restart operation after replace the PBA. Samsung Electronics...
Page 114: Evi In Temperature Sensor Error (Open/Short)
EVI IN CN44 (3, 4) 12.1 18.0 27.3 43.0 Is the resistor value matching with “NOTE1” table? Replace this part as it is the defective of the Outdoor EVI In Temperature sensor itself. Restart operation after replace the PBA Samsung Electronics...
Page 115: Evi Out Temperature Sensor Error (Open/Short)
EVI OUT CN44 (5, 6) 12.1 18.0 27.3 43.0 Is the resistor value matching with “NOTE1” table? Replace this part as it is the defective of the Outdoor EVI Out Temperature sensor itself. Restart operation after replace the PBA Samsung Electronics...
Page 116: Suction-2 Temperature Sensor Error (Open/Short)
CN46 (1, 2) 12.1 18.0 27.3 43.0 Is the resistor value matching with “NOTE1” table? Change this part as it is the fault of the outdoor Suction-2 sensor itself. Restart operation after changing PBA Samsung Electronics...
Page 117: 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 Inverter PBA1 IGBT and PFCM temperature E474 Replace Inverter PBA sensor error Samsung Electronics...
Page 118: 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 (motor or fan) for the heating? Check the refrigerant amount. Samsung Electronics...
Page 119: Suspension Of Starting Due To Compressor Discharge Temperature Sensor
Pipe inspection (filter etc.) NOTE1 Resistance value Resistance value Temperature(°C) Resistance(KΩ) measure part measure part Check the refrigerant amount. 11.2 18.5 32.0 TOP1 TOP2 59.0 200.0 TOP1 CN43(3,4) 242.0 TOP2 CN45(5,6) 362.0 DIS1 CN43(1,2) 553.0 DIS2 CN45(3,4) Samsung Electronics...
Page 120: 3-Phase Input Wiring Error
Did the EMI PBA Fuse is short? Replace Fuse, if the rectifier diode of the inverter PBA is normal. Is EMI PBA CN21 Connection and then restart it connector and Inverter PBA accurately connected? Replace the MAIN PBA. Samsung Electronics...
Page 121: Suspension Of Starting By Abnormal Compression Ratio
Manifold Gauge value in range? Are the 4Way Valve normally operating? Check the 4Way Valve Are the Indoor Unit and Outdoor Unit EEV Check the relevant EEV normally operating? Compressor Inspection Is current of compressor normally? Check the refrigerant Complete Samsung Electronics...
Page 122: Evi Eev Open Error
Replace EVI EEV Normal Abnormal Check for Intercooler leakage. Replace Intercooler Normal Abnormal Check for Indoor Unit EEV leakage Replace Indoor Unit EEV Normal Is there a liquid-gas pipe directly connected to each other? Reinstall pipe Check the refrigerant Samsung Electronics...
Page 123: Refrigerant Leakage Error
Out of the PBA Pressure Replace PBA sensor terminals, is there voltage between pins 3 and 4 5V? The ▼ mark is the 1st pin on the PBA. Replace Pressure sensor Samsung Electronics...
Page 124: Prevention Of Heating / Cooling Operation Due To Outdoor Temperature
• Cooling operation : When the outdoor temperature is less than -25℃ • System protection operation status (Is not breakdown) Cause of problem • If the outdoor temperature is satisfied the operating range, it will clear the error and start the operation automatically. Samsung Electronics...
Page 125: Prevention Of Heating Refrigerant Charge Due To Outdoor Temperature
● ※ ● : ON ◑ : Flash ×: OFF Judgment • When the heating refrigerant charge : If the outdoor temperature is more than 15℃ Method Cause of • System protection operation status (Is not breakdown) problem Samsung Electronics...
Page 126: Cch Wire Breaking Error
Fix the compressor Top temperature sensor in correct position. Is CCH resistance normal? (500~700 Ω /infinite for disconnection) Change CCH. Does the E445 error occur even after the outdoor unit K3” RESET? Normal Operation. Replace the PBA. Samsung Electronics...
Page 127 Fix the compressor Top temperature sensor in correct position. Is CCH resistance normal? (500~700 Ω /infinite for disconnection) Change CCH. Does the E445 error occur even after the outdoor unit K3” RESET? Normal Operation. Replace the PBA. Samsung Electronics...
Page 128: Fan Motor Starting Error
If the motor is two, Replace a normal combination the combination is normal? Replace Fan PBA Restart Normal ccmbination DB31-00614E, DB31-00614F DB31-00614G, DB31-00614H When the error is repeated, DB31-00651A, DB31-00651B replace the Fan Motor DB31-00652A, DB31-00651B DB31-00675A, DB31-00675B DB31-00675E, DB31-00675F Samsung Electronics...
Page 129 Measure More than 500 ㏀ the resistance values Measurement error can occur for reasons such as the ini- tial measurement condenser discharge. Measured over at least three times. Measure the diode 0.3~0.7V voltage values < Table 1 > Samsung Electronics...
Page 130: Fan Motor Locking Error
DB31-00614G, DB31-00614H DB31-00651A, DB31-00651B Dual Fan Controller? DB31-00652A, DB31-00651B DB31-00675A, DB31-00675B DB31-00675E, DB31-00675F If there's two motor, the Remove the foreign objects and restart. combination is normal? Remove the motor 3-phase current wires between PBA and motor Continue. Samsung Electronics...
Page 131 Connection wire of Fan Motor did confirmation? (Check the connection status of Check the connection status, and then restart. the Fan1 and Fan2.) Replace Fan PBA Restart When the error is repeated, replace the Fan Motor. Samsung Electronics...
Page 132: Momentary Blackout Error
※ ● : ON ◑ : Flash ×: OFF Judgment • Momentary stop of compressor due to momentary blackout. Method Cause of • Momentary stop of compressor due to momentary blackout. problem 1. Precautions : Replace Hub PBA or Main PBA. Samsung Electronics...
Page 133: Outdoor Fan Motor Overheating
Connection wire of Fan Motor did confirmation? (Verify that the wire folded, or the connection Check the connecting wire and restart it. is detached.) Is there anything strange in Replace Fan PBA appearance Fan Motor? Replace Fan Motor Samsung Electronics...
Page 134: Fan Pba Ipm Overheating Error
*Cold heat sink assembly defect occurs. Does the heatsink fixing bolt are tightened completely? 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 Replace fan PBA Samsung Electronics...
Page 135: Compressor Starting Error
(U ↔ V,V ↔ W,W ↔ U) less than 2Ω? Is the resistance Replace Compressor. between the body of Compressor and chassis Open? Does the Compressor Repair / Replace the wire. connection wire properly connect to the Inverter PBA? Continue. Samsung Electronics...
Page 136 After change Measure E464 E464 Replace No.1Inverter PBA E464 E364 Replace No.1 Compressor E364 E364 Replace No.2 Inverter PBA E364 E464 Replace No.2 Compressor See the "Contain of compressor Exchange (3-XX)" in service manual when you replace the compressor. Samsung Electronics...
Page 137: Comp 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 to the compressor? connection UVW) Continue. Samsung Electronics...
Page 138 After change Measure E464 E464 Replace No.1Inverter PBA E464 E364 Replace No.1 Compressor E364 E364 Replace No.2 Inverter PBA E364 E464 Replace No.2 Compressor See the "Contain of compressor Exchange (3-XX)" in service manual when you replace the compressor. Samsung Electronics...
Page 139 COMP 1 9times (KD__) 8times (KD__) COMP 2 10times (KE__) 9times (KE__) MOTOR 1 11times (KF__) MOTOR 2 12times (KG__) Power Off ( Use to inverter checker ) PBA Defective Replace Compressor/Fan motor Replace Inverter PBA /Fan PBA Samsung Electronics...
Page 140 N-IGBT N-IGBT Measurement error can occur for reasons such as the N-IGBT initial measurement condenser discharge. P-IGBT Measured over at least three times. P-IGBT P-IGBT Measure the diode 0.3~0.7V voltage values N-IGBT N-IGBT N-IGBT < Table 1 > Samsung Electronics...
Page 141 Troubleshooting 4-3 Appropriate Measures for Different Symptom (cont.) Samsung Electronics...
Page 142: Overvoltage / Low Voltage Error
Is Inverter Power Off and then PBA R,S,T Wire and EMI PCBA re-connection connector accurately connected? Standard AC Voltage(Vac) Standard DC Voltage(Vdc) Type of AC Input Power Source Voltage Min. Max. Min. Max. Replace Inverter PBA 208~230V 460V Samsung Electronics...
Page 143: Dc Link Voltage Sensor Error
• PBA voltage sensing circuit defective 1. Cause of problem E496 Power Off DC power wire (INV PCB) Check the connector Check the status of DC LINK Connector connection Replace FAN PBA E469 E369 Replace No1 INVERTER PBA Replace No2 INVERTER PBA Samsung Electronics...
Page 144: Fan Motor Overcurrent Error
If it is Dual Fan Controller? If the motor is two, Replace a normal combination the combination is normal? Replace Fan PBA Normal ccmbination DB31-00614E, DB31-00614F Restart DB31-00614G, DB31-00614H DB31-00651A, DB31-00651B DB31-00652A, DB31-00651B Fan motoe replacement DB31-00675A, DB31-00675B when error iteration DB31-00675E, DB31-00675F Samsung Electronics...
Page 145 • Occurs when overcurrent flows in the IPM. Judgment Method • Detected by H/W or S/W Cause of problem • Defective FAN Motor 1. Cause of problem Power Off E489 E389 Replace No1 Fan motor Replace No2 Fan motor Samsung Electronics...
Page 146: Input / Output Current Sensor Error
Cause of problem • PBA 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 PBA Replace Fan PBA Samsung Electronics...
Page 147: Outdoor Fan Pba Overvoltage / Low Voltage Error
→ ⓑ Disconnect the DC LINK connector from FAN PBA → ⓒ Turn on the MAIN Power → ⓓ Check voltage of connector Standard voltage range of DC and AC Standard Standard AC Voltage(Vac) DC Voltage(Vdc) AC Input Voltage Min. Max. Min. Max. 208~230V 460V 380~415V Samsung Electronics...
Page 148 Is the resistance value between different phases Replace Compressor of Compressor(U ↔ V, V ↔ W, W ↔ U) less than 2Ω? Replace Compressor Is the resistance between the body of Compressor and chassis MΩ? Replace FAN PBA DC power wire (INV PCB) Samsung Electronics...
Page 149: Hall Ic Connection/Two Motor Parameter Difference Error
HALL IC on the PBA is correctly Check the connecting wire and connected ? restart. Replace Fan PBA Normal ccmbination DB31-00614E, DB31-00614F DB31-00614G, DB31-00614H DB31-00651A, DB31-00651B Restart DB31-00652A, DB31-00651B DB31-00675A, DB31-00675B DB31-00675E, DB31-00675F When the error is repeated, replace the Fan Motor. Samsung Electronics...
Page 150: Inverter Pba Ipm Overheating Error
M5 : 20~30kgf·cm : Do not use an electric screwdriver to avoid breakage of PBA in Control Box. Please fasten with screwdriver. Caution : Apply the screw specification for each controller. Screw M4 Screw M5 Screw M5 Continue. Samsung Electronics...
Page 151 IGBT/PFCM? grease. And then reassembly Apply the heat sink grease and then Did properly apply the heat sink grease? (Between the heat sink and the IGBT/PFCM) reassembly. Grease Service Code : DB81-02483A Good No Good Complete Samsung Electronics...
Page 152: Option Setting Error Of Outdoor Unit
Compressor Cut off Option Setting, E560. Is the outdoor unit EEPROM accurately Connect outdoor unit EEPROM and then reset. connected to connector? Download relevant model EEPROM and then reset. ※ Execute automatic commissioning for UP cancellation after EEPROM download. Samsung Electronics...
Page 153: Error Due To Using Single Type Outdoor Unit In A Module Installation
Is installed by outdoor unit module? Download relevant model EEPROM and Outdoor unit single type exclusive use then reset. model (non-modular model), can not be ※ Execute automatic commissioning module installation. for "UP" cancellation after EEPROM (Single type only installation) download. Samsung Electronics...
Page 154: Indoor Unit And Mcu Address Duplication Error
- To solve the problem through the power reset after the address is reset the or reset the whole system to rerun. power reset of individual units is meaningless and the power of the whole system must be reset. Samsung Electronics...
Page 155: Refrigerant Leakage Check Alarm In Operaiton
(K2 switch 5 times push) and charge the refrigerant. ※ The refrigerant leakage check function is activated under the following conditions. Ambient temperature within 25 ~ 40 ℃ All outdoor units are operating In case of the indoor unit is operating at least 65%. Samsung Electronics...
Page 156: Main Eev Leakage Error
1. Cause of problem Is Main EEV connector Reconnect connector accurately connected to PBA? Reset (K3 Key or Power Reset) the system for Main EEV initialization 2~3 times Abnormal Check the Main EEV leakage Replace Main EEV Normal Normal Operation Samsung Electronics...
Page 157: Case Study For Trouble Shoots
■ Warning of Electrical Shock from DC Power ▪ Capless Inverter does not support "Electric discharge mode"! ▪ Cut-off the power and wait for more than 2 minute allow it to discharge naturally. inverter PBA FAN PBA < Warning Label > Samsung Electronics...
Page 158 K2 button Number Push time “ ” “ ” Inv. 2 DC voltage “ ” “ ” Inv. 1 DC volt Ex) 445V → 0445 Display ※ Below 30 Volt, “ ” “ ” “ ” “ ” displays. Samsung Electronics...
Page 159: Pump Down Operation
5. If high pressure is same or lower than 30kg/cm2.g, open the liquid valve and container valve. 6. Check the weight of container and then close the valve. * Recommend to store 50% of total refrigerant. * If too much refrigerant is stored in the container system can’t proceed pump down properly. Scale Samsung Electronics...
Page 160 Troubleshooting 4-4 Case study for trouble shoots (cont.) 4-4-2 Pump down operation (cont.) Samsung Electronics...
Page 161: Pump Out Operation
※Low pressure is outside normal limite : Operation is shut down after as pipe manually closed. Entry after safety start. (Only the corresponding Outdoor Unit operation.) Etc. To pump out more than 2 : Except communicatio between Outdoor unit of relevant set after working for one, remainder set makes Pump Out add. Samsung Electronics...
Page 162 Troubleshooting 4-4 Case study for trouble shoots (cont.) 4-4-3 Pump out operation (cont.) Samsung Electronics...
Page 163: Vacuum
“ ” “ ” “ ” “ ” How to lnitiate K1 Tact Swithc 7 times~11 times Compressor Indoor Unit/Outdoor Unit 4Wasy Valve Valve Open all valves maximum Etc. If not turn off the vacuum mode, the start of normal operation is prohibited. Samsung Electronics...
Page 164: Case Study - E201 (Communication Error Between Indoor & Outdoor Unit)
Check the IC Duplicated address setting(E108 will be shown as well) Change the indoor unit’s address Cause Cause - Problem : System stop by E201 intermittently - Condition : System was ok when commissioning Operation Defrost Timer Filter ◑ ◑ Samsung Electronics...
Page 165 Measure the No.5- No.6 / No.5- No.7 / No.5- No.8 Pin resistance ■ Judgment - Normal : Each resistance value = in hundreds Ω ~ to hundreds of kΩ. - Defective : One or both are low with tens of Ω One or both of them is open Samsung Electronics...
Page 166: Case Study - E205 (Internal Communication Error Of The Outdoor Unit C-Box)
2) No power supply to inverter PBA. Possibility 3) Poor connection of communication wiring and connector. 4) Wrong HP information in EEPROM. <PBA Connection order> MAIN PBA FAN PBA Comm jumper INV PBA 1 INV PBA 2 Communication jumper Connection Inv1 and Inv2 Samsung Electronics...
Page 167: Case Study - E206 (Internal Communication Error Of The Outdoor Unit C-Box)
2) Defect of related electric component * Reference E206-C001 : MAIN PBA communication error / E206-C002 : FAN PBA communication error E206-C003 : INV1 PBA communication error / E206-C004 : INV2 PBA communication error Main PBA FAN PBA Inverter PBA Samsung Electronics...
Page 168: Case Study - E108 (Error Due To Repeated Address Setting)
If you can’t see address “03” probably #03 IDU has wrong address Duplicated address of indoor unit in EEV kit Check the EEV Kit setting Display : E108-C101-E108-C101… Check MCU address rotary switch → Duplicated address of MCU Samsung Electronics...
Page 169: Case Study - E108, E604, E613
Because of E108 Address duplication of IDU/MCU/EEV EEV KIT address setting E108 Fix IDU address Failure (human error) Tracking error between remote control- Power reset on E604 Tracking fail because of E108 ler and the IDU Wired remote controller Samsung Electronics...
Page 170: Case Study - E461, E361 (Error Due To Operation Failure Of Inverter Compressor)
(INVERTER1 PBA) Outdoor unit display (INVERTER2 PBA) • Startup, and then if the speed increase is not normally. Judgment Method • Detected by H/W or S/W. • Compressor connection error Cause of problem • Defective Compressor • Defective PBA Samsung Electronics...
Page 171: Case Study - Inverter Pba Error
• PBA defective (INVERTER1 PBA) Outdoor unit display (INVERTER2 PBA) • N-phase wiring error and EMI Fuse short. Judgment Method • DC-Link Overvoltage / Low voltage occurs. • Check the input wiring Cause of problem • EMI Fuse short Samsung Electronics...
Page 172: Case Study - E461/361 & E464/364 & E466/366
4. Execute inverter checker function in OUD main PBA. 5. If any LED is not blinking → PBA defect → Change PBA Inverter PBA visit visit Comp order visit visit Completion order PBA replace Comp replace Check with visit Order comp Inverter checker Comp replace Samsung Electronics...
Page 173 2. Wait more than 15 minutes after the Power Off. 3. Exchange comp wire ( Inverter PBA 1 ↔ comp 2 & Inverter PBA 2 ↔ comp 1) 4. Take measure according to the result Replace comp #1 E461 E461 E461 Change Change Change E361 E361 E361 Samsung Electronics...
Page 174 Measurement error can occur for reasons P-IGBT such as the initial measurement Measure More than 500KΩ condenser discharge. the resistance values N-IGBT Measured over at least three times. N-IGBT N-IGBT P-IGBT P-IGBT P-IGBT Measure the diode 0.3~0.7V voltage values N-IGBT N-IGBT N-IGBT Samsung Electronics...
Page 175 2. Wait more than 15 minutes after the Power Off as in case of IPM failure, discharge mode may not work properly. 3. Prepare the digital multi tester. Resistance test Normal Value Resistance value of (U↔V,V↔W,W↔U) on compressor less than 2Ω Resistance value between the body of compressor and chassis MΩ Samsung Electronics...
Page 176: Case Study - Poor Cooling Caused By Ipm Overheated
IPM1 IPM2 IPM2 Basic Reattach #1 Reattach #2 Solved ※ IPM Temp Protection ※ HP Protection - Hz Hold : 90℃ - Hz Hold : 36 kgf/㎠ - Hz Down : 93℃ - Hz Down : 37 kgf/㎠ Samsung Electronics...
Page 177: Case Study - Related Error With Ipm
3) Defect of related electronic component 1) Check status of screws on IGBT module Treatment 2) Plastering thermal grease to IGBT module or heat sink 3) Change INV PBA Heat sink IGBT(IPM) module Inv. PBA Good No Good Samsung Electronics...
Page 178: Case Study - E455 (Fan Ipm Overheat Error)
Judgment Method • IPM internal temperature more than 85°C (E455, E355) • Heat sink and IPM assembly defective. Cause of problem • Defective heat sink cooling Heat sink - Action : S-net pro data check & back up Samsung Electronics...
Page 179 4-4 Case study for trouble shoots (cont.) 4-4-15 Case study – E455 (Fan IPM overheat error) (cont.) - Analysis result : Cond out temperature is too high & Outdoor temperature is too high → Suspect insufficient air flow rate Samsung Electronics...
Page 180: Case Study - Temperature Sensor Open/Short
Cond_out temp. sensor 103AT E231 11.2 EVI in/out temp. sensor 103AT E321,322 18.5 Liquid tube temp. sensor 103AT E311 Suction temp. sensor 103AT E308,323 12.1 Discharge temp. sensor 204CT E251,257 18.0 Comp. top temp. sensor 204CT E276,277 27.3 43.0 Samsung Electronics...
Page 181: Case Study - Pressure Sensor Open/Short
▪ Disconnection or breakdown of relevant sensor. - E291 : High pressure sensor error - E296 : Low pressure sensor error Check sensor connector problem? Refrigerant amount insufficient voltage between Replace sensor Pressure pins 3&4 on PBA = 5V Replace PBA Samsung Electronics...
Page 182: Pba Diagram And Parts List
5. PBA Diagram and Parts List 5-1 Main PBA DC Samsung Electronics...
Page 183 #4 GND #5 COND OUT #5 SUCTION3 #5 EMI OUT #5 COMP2 TOP #6 GND #6 GND #6 GND #6 GND #7 AIR #8 GND ㉕ C-BOX COMM #1 12V #2 INVERTER SMPS OUT #3 C-BOX COMM #4 GND Samsung Electronics...
Page 184: Main Pba Ac
#1 REF RECHARGE #1 CCH2 #1 CCH1 #2 CCH2 #2 CCH1 #2 4WAY2 #2 REF RECHARGE ⑬ 4WAY1 ⑭ MAIN COOLING ⑮ EVI BYPASS2 #1 4WAY1 #1 MAIN COOLING #1 EVI BYPASS2 #2 4WAY1 #2 MAIN COOLING #2 EVI BYPASS2 Samsung Electronics...
Page 185: Emi Pf8
POWER #1 R-IN #1 Earth #1 R-OUT #2 S-IN #2 S-OUT #1 T-OUT #3 T-OUT #3 T-IN #2 - #4 N-IN #3 S-OUT #4 - #5 N Connector to MAIN BPA ⑤ #1 T-OUT #2 - #3 N Samsung Electronics...
Page 186: Emi Pf9
F POWER #1 R-IN #1 Earth #1 R-OUT #2 S-IN #2 S-OUT #1 T-OUT #3 T-OUT #3 T-IN #2 - #4 N-IN #3 S-OUT #4 - #5 N Connector to MAIN BPA ⑤ #1 T-OUT #2 - #3 N Samsung Electronics...
Page 187: Emi Pf9 Old
POWER #1 R-IN #1 Earth #1 R-OUT #2 S-IN #2 S-OUT #1 T-OUT #3 T-IN #3 T-OUT #2 - #4 N-IN #3 S-OUT #4 - #5 N Connector to MAIN BPA ⑤ #1 T-OUT #2 - #3 N Samsung Electronics...
Page 188: Dual Fan
#8 NTRST #9 GND to INV #9 P_GND #10 DC 5V IPM to Motor2 DC LINK VOLTAGE SENSING ⑤ ⑥ #1 U2 #1 540Vdc from INV #2 - #2 P_GND from INV #3 V2 #4 - #5 W2 Samsung Electronics...
Page 189: Safety 2Fan
#8 NTRST #9 GND to INV #9 P_GND #10 DC 5V IPM to Motor2 DC LINK VOLTAGE SENSING ⑤ ⑥ #1 U2 #1 540Vdc from INV #2 - #2 P_GND from INV #3 V2 #4 - #5 W2 Samsung Electronics...
Page 190: Pf8 Inv.integration J Power
PBA Diagram and Parts List 5-8 PF8 Inv.Integration J POWER Samsung Electronics...
Page 191 #3 : BOOT_FAN #4 : TDO_FAN #5 : TCK_FAN #6 : TDI_FAN #7 : TMS_FAN #8 : NTRST_FAN #9 : GND #10 : VCC #11 : VCC #17 : GND #18 : CLK_DAC_FAN #19 : CS_DAC_FAN #20 : DATA_DAC_FAN Samsung Electronics...
Page 192: Pf8 Inv.integration F Power
PBA Diagram and Parts List 5-9 PF8 Inv.Integration F POWER Samsung Electronics...
Page 193 #3 : BOOT_FAN #4 : TDO_FAN #5 : TCK_FAN #6 : TDI_FAN #7 : TMS_FAN #8 : NTRST_FAN #9 : GND #10 : VCC #11 : VCC #17 : GND #18 : CLK_DAC_FAN #19 : CS_DAC_FAN #20 : DATA_DAC_FAN Samsung Electronics...
Page 194: Pf8_20C Inv J Power
#4 : JTAG_TDO #4 : AD-SELECT #5 : JTAG_TCLK #6 : JTAG_TDI #7 : JTAG_TMS #8 : JTAG RESET #9 : GND #10 : VCC #11 : VCC #17 : GND #18 : DAC_CLK #19 : DAC_CS #20 : DAC_DATA Samsung Electronics...
Page 195: Pf8_20C Inv F Power
#4 : JTAG_TDO #4 : AD-SELECT #5 : JTAG_TCLK #6 : JTAG_TDI #7 : JTAG_TMS #8 : JTAG RESET #9 : GND #10 : VCC #11 : VCC #17 : GND #18 : DAC_CLK #19 : DAC_CS #20 : DAC_DATA Samsung Electronics...
Page 196: Pf9_20C Inv J Power
#4 : AD-SELECT #4 : JTAG_TDO #5 : JTAG_TCLK #6 : JTAG_TDI #7 : JTAG_TMS #8 : JTAG RESET #9 : GND #10 : VCC #11 : VCC #17 : GND #18 : DAC_CLK #19 : DAC_CS #20 : DAC_DATA Samsung Electronics...
Page 197: Pf9_20C Inv F Power
#4 : AD-SELECT #4 : JTAG_TDO #5 : JTAG_TCLK #6 : JTAG_TDI #7 : JTAG_TMS #8 : JTAG RESET #9 : GND #10 : VCC #11 : VCC #17 : GND #18 : DAC_CLK #19 : DAC_CS #20 : DAC_DATA Samsung Electronics...
Page 198: Wiring Diagram
Wiring Diagram 6. Wiring Diagram 6-1 AM072BXVGF*/AA, AM072BXVGJ*/AA This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 199: Am096/120/144Bxvgf*/Aa, Am096/120/144/168Bxvgj*/Aa
Wiring Diagram 6-2 AM096/120/144BXVGF*/AA, AM096/120/144/168BXVGJ*/AA This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 200: Am162Bxvgf*/Aa
Wiring Diagram 6-3 AM162BXVGF*/AA This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 201: Am192Bxvgj*/Aa
Wiring Diagram 6-4 AM192BXVGJ*/AA This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 202: Am216/240Bxvgf*/Aa, Am216/240Bxvgj*/Aa
Wiring Diagram 6-5 AM216/240BXVGF*/AA, AM216/240BXVGJ*/AA This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 203: Field Wiring
– Do not use the power cable with the core wire exposed due to insulator damage occurred during removal of the sheath. When the core wire is exposed, it may cause fire. Exposed wire core Insulator (inner cover) Sheath (outer cover) <The example of exposed core wire> Samsung Electronics...
Page 204 • Refer to module combination table for independent units information • Symbols: – RLA : Rated Load Ampere – FLA : Full Load Ampere – MCA : Minimum Circuit Ampere (A) – MOP : Maxium Overcurrent Protective Device(A)” Samsung Electronics...
Page 205 • Install the power and communication cable using separate cable protection tube. • Fix a protection tube to the knock-out hole on the outdoor unit by using a CD connector or bushing. Make sure to use insulating bushing. Samsung Electronics...
Page 206 • Caution for installing communication cable • When you connect the cable, it may sag and pressed by other parts. Therefore cables should be fixed to a clamp highlighted with a box on the illustration. Samsung Electronics...
Page 207 (COMP2) Low (PS_L) (COMP1) Outdoor Heat Exchanger (OHX) Thermistor - Liquid pipe (T_L) Solenoid FAN OFF Valve - Solenoid Valve - (V_EVI2) Ball Valve - EVI 1(V_EVI1) Accumulator oil Return (V_AR) Liquid pipe (BV_L) Outdoor Heat Exchanger (OHX) Samsung Electronics...
Page 208: Piping Diagram
(HR (Solenoid valve-Hot Gas Bypass 2) Only) Outdoor EEV Valve Close the main valve in the cooling operation and to control V_OE (V_ME) (Solenoid valve-Main EEV) the amount of refrigerant in the Main EEV. (HR Only) Samsung Electronics...
Page 209 It is used to determine the supercooling. Comp. Top Temp. Sensor To measure the surface temperature of the compressor Top T_CT (Thermistor-Compressor Top) Cover. It is mainly used to protect the compressor. Ambient Temp. Sensor Measure the temperature of the outdoor air. (Thermistor-Ambient) Samsung Electronics...
Page 210: Am072Bxvgfh/Aa, Am072Bxvgjh/Aa
Thermistor - (AC) pipe Compressor (T_D) (T_CT) Compressor1 (COMP1) IPM Cooler (IPMC) Ball Valve - Thermistor - Solenoid Valve - Liquid pipe Liquid pipe Accumulatoroil Return (BV_L) (T_L) (V_AR) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 211: Am096/120/144/168Bxvgfh/Aa, Am096/120/144/168Bxvgjh/Aa
(COMP1) (COMP2) Solenoid Solenoid Valve - Valve - EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI2) (V_EVI1) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 212: Am192Bxvgfh/Aa, Am192Bxvgjh/Aa
Electronic (T_CT1) Expansion Valve - EVI (E_EVI) Compressor1 Compressor2 (COMP1) (COMP2) Solenoid Solenoid Valve - Valve - EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) Samsung Electronics...
Page 213: Am216/240Bxvgfh/Aa, Am216/240Bxvgjh/Aa
(COMP1) (COMP2) Solenoid Solenoid Valve - Valve - EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI2) (V_EVI1) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 214: Am072Bxvgfr/Aa, Am072Bxvgjr/Aa
EVI (E_EVI) (AC) pipe Compressor (T_D) (T_CT) Compressor1 (COMP1) IPM Cooler (IPMC) Ball Valve - Thermistor - Solenoid Valve - Liquid pipe Liquid pipe Accumulatoroil Return (BV_L) (T_L) (V_AR) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 215: Am096/120/144/168Bxvgfr/Aa, Am096/120/144/168Bxvgjr/Aa
(COMP1) (COMP2) Solenoid Solenoid Valve - Valve - EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 216: Am192Bxvgfr/Aa, Am192Bxvgjr/Aa
(COMP1) (COMP2) Solenoid Solenoid Valve - Valve - EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI2) Liquid pipe (V_EVI1) Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 217: Am216/240Bxvgfr/Aa, Am216/240Bxvgjr/Aa
(COMP1) (COMP2) Solenoid Solenoid Valve - Valve - EVI2 EVI1 Ball Valve - Solenoid Valve - Thermistor - (V_EVI2) (V_EVI1) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 218: Refrigerant Flow For Each Operation Mode
FAN OFF Solenoid Solenoid Valve - Valve - EVI2 EVI1 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 219: Dvm S Heat Pump - Heating Operation
FAN OFF Solenoid Solenoid Valve - Valve - EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 220: Dvm S Heat Recovery - Cooling Operation
Solenoid Solenoid Valve - Valve - FAN OFF EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 221: Dvm S Heat Recovery - Main Cooling Operation
Solenoid Solenoid Valve - Valve - FAN ON EVI2 Ball Valve - EVI1 Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 222: Dvm S Heat Recovery - Heating Operation
Solenoid Solenoid Valve - Valve - FAN OFF EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 223: Dvm S Heat Recovery - Main Heating Operation
Solenoid Solenoid Valve - Valve - FAN ON EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 224: Functions
▪ Superheated vapor indicates to the vapor state found to the right of the Saturated vapor line. ▪ Two-phase state refers to a state where gas and liquid phases are mixed. ▪ Subcooled liquid refers to the liquid state found to the left of the Saturated liquid line. Samsung Electronics...
Page 225 ▪ Difference between condenser exit temperature and high pressure saturation temperature is referred to as subcooled degree. Superheated degree must be calculated at the evaporator exit. This prevents wet compression. Refrigerant flow from the evaporator must be adjusted using the expansion valve so that only superheated vapor can flow into the compressor. Samsung Electronics...
Page 226 ▪ Adjust the indoor unit EEV to sync the refrigerant superheated degree for the indoor heat exchanger (formula: exit refriger- ant temperature - entrance refrigerant temperature) with the target superheated degree. Samsung Electronics...
Page 227 - low pressure saturation temperature) with the target superheated degree. ▪ Adjust the indoor unit EEV to sync the refrigerant supercooling degree for the indoor heat exchanger (formula: high pressure saturation temperature - entrance refrigerant temperature) with the target supercooling degree. Samsung Electronics...
Page 228: Control
In case that the setting value of the evap in temperature is required to be adjusted, it can be adjusted in the main PBA by referring to the installation manual. Samsung Electronics...
Page 229 In case that the setting value of the target pressure shall be adjusted, it can be adjusted in the main PBA by referring to the installation manual. ▪ ODU option setting Seg1 Seg2 Seg3 Seg4 Pressure(kgf/cm²,g) 30 (default) Main 27~32 Samsung Electronics...
Page 230 ■ Maser unit rotation 1. After defrost / Oil recovery / All unit off (Master unit operates more than 60 minutes) 2. A unit is stopped over 40 minutes Master Sub1 Sub2 Sub2 Master Sub1 Sub1 Sub2 Master Samsung Electronics...
Page 231 Master unit Sub 1 unit Compressor Comp 1(66cc) Comp 2(66cc) Comp 1(52cc) Comp 2(52cc) Module Capacity[kW] 80*22HP/(22HP+16HP) = 46.32 80*16HP/(22HP+16HP) = 33.68 Comp Capacity [kW] 23.16 23.16 16.84 16.84 Frequency 67hz 67hz + α 62hz 62hz + α Samsung Electronics...
Page 232 Fan RPM on the assumption that the evaporating power is not enough. The target pressure is as in the table. The target pressure is changed according to the value optimized to the outdoor temperature. Cooling Cooling Samsung Electronics...
Page 233 Controlled by capacity DSH normal DSH protection control Module installation Low pressure equal between ODUs Low pressure equalization control Target SH control Target SH control Module install : 5 K Single install : 2 K EEV control repeat Samsung Electronics...
Page 234 (High pressure Saturated temp. – Liquid tube temp.) ▪ (EVI out temp. – EVI in temp.) control : 2 K EVI On mode ※ If comp discharge temp. is abnormally high, open EVI EEV to decrease the discharge temperature. Remark Samsung Electronics...
Page 235 - HR Only ▪ Control specifications in detail If using the Heat Recovery device, the valve is opened (ON) after cooling-only mode has been on for more than 20 minutes or when cooling oil return mode is active. Samsung Electronics...
Page 236 - Condition(s) required to turn Off the CCH: [ A or B ] A. The highest temperature of the compressor has remained above 55℃ for 30 min. B. The CCH has been On for longer than 6 hours. Samsung Electronics...
Page 237 DSH > 10 K Cold Operation ■ Prevention of liquid compression Normal Operation - DSH = Compressor discharge temp. - High pressure saturation temp. - Definition of compressor discharge temperature from DSH : Min { Max(Tdis_comp1, Ttop_comp1), Max(Tdis_comp2, Ttop_comp2) } Samsung Electronics...
Page 238 In Cold Operation mode, the compressor frequency increase speed is restricted to 1Hz per 60 sec. Condition(s) required to close Cold Operation mode: [ A or B ] A. A maximum of 60 min has elapsed B. DSH > 15 K Samsung Electronics...
Page 239 - In Cold Operation mode, the compressor frequency increase speed is restricted to 1Hz per 30 sec. - Condition(s) required to close Cold Operation mode : [ A or B ] A. A maximum of 30 min has elapsed B. DSH > 15 K Samsung Electronics...
Page 240 - In Cold Operation mode, the compressor frequency increase speed is restricted to 1Hz per 30 sec. - Condition(s) required to close Cold Operation mode: [ A or B ] A. A maximum of 30 min has elapsed B. DSH > 15 K Samsung Electronics...
Page 241 Operation On (Open) Solenoid Valve – Hot Gas Bypass 2 (HR Only) V_HG2 Operation On (Open) Solenoid Valve – Main EEV (HR Only) V_ME Operation On (Open) Solenoid Valve – Main Cooling (HR Only) V_MC Operation Off (Close) Samsung Electronics...
Page 242 Expansion Valve - EVI (E_EVI) Compressor1 Compressor2 (COMP1) (COMP2) Solenoid Solenoid Valve - Valve - FAN OFF EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) Samsung Electronics...
Page 243 Operation On (Open) Solenoid Valve – Hot Gas Bypass 2 (HR Only) V_HG2 Operation On (Open) Solenoid Valve – Main EEV (HR Only) V_ME Operation On (Open) Solenoid Valve – Main Cooling (HR Only) V_MC Operation Off (Close) Samsung Electronics...
Page 244 Expansion Valve - EVI (E_EVI) Compressor1 Compressor2 (COMP1) (COMP2) Solenoid Solenoid Valve - Valve - FAN OFF EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) Samsung Electronics...
Page 245 Operation On (Open) Solenoid Valve – Hot Gas Bypass 2 (HR Only) V_HG2 Operation Off (Close) Solenoid Valve – Main EEV (HR Only) V_ME Operation Off (Close) Solenoid Valve – Main Cooling (HR Only) V_MC Operation On (Open) Samsung Electronics...
Page 246 Valve - EVI (E_EVI) Compressor1 Compressor2 (COMP1) (COMP2) HEAT Solenoid Solenoid Valve - Valve - FAN ON EVI1 EVI2 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) Samsung Electronics...
Page 247 Operation On (Open) Solenoid Valve – Hot Gas Bypass 2 (HR Only) V_HG2 Operation Off (Close) Solenoid Valve – Main EEV (HR Only) V_ME Operation Off (Close) Solenoid Valve – Main Cooling (HR Only) V_MC Operation Off (Close) Samsung Electronics...
Page 248 Valve - EVI (E_EVI) Compressor1 Compressor2 (COMP1) (COMP2) COOL Solenoid Solenoid Valve - Valve - FAN ON EVI2 EVI1 Ball Valve - Solenoid Valve - Thermistor - (V_EVI1) (V_EVI2) Liquid pipe Accumulatoroil Return Liquid pipe (BV_L) (V_AR) (T_L) Samsung Electronics...
Page 249 Starts with 0 step and controls cooling fans Active unit 800 step Indoor EEV Inactive unit 400 step OFF (if using the HR device, model-based control is performed on cooling indoor Indoor Fan units while in main heating mode) Time Maximum of 15 min Samsung Electronics...
Page 250 Top 1 (T_CT1) Compressor 1 Pressure Sensor - (COMP2) (COMP1) Low (PS_L) Thermistor - Liquid pipe (T_L) Solenoid FAN OFF Valve - Solenoid Valve - (V_EVI2) Ball Valve - EVI 1(V_EVI1) Accumulator oil Return (V_AR) Liquid pipe (BV_L) Samsung Electronics...
Page 251 General control Indoor unit Inactive unit General control on inactive units Active unit General control Cooling indoor unit Inactive unit Set fan speed Indoor Heating Active unit Mid fan speed Indoor unit Inactive unit Time Maximum of 12 min Samsung Electronics...
Page 252 Low Temper atur e & pr essur e Gas Low Temper atur e & pr essur e Liquid ↑ HEAT ↑ FAN ON HEAT ↑ FAN ON ↑ ↑ ↑ HEAT FAN ON HEATING FAN OFF ↑ HEAT ↑ ↑ FAN ON ↑ ↑ FAN OFF Samsung Electronics...
Page 253 Higher step of [400(C)/300(H) or Current step] Indoor EEV Stopped indoor units 400(C)/300(H) Indoor Fan Normal control Time 3min(C) / 6min(H) *Additional capacity = Compensation capacity of stop units * EEV step can be varied by cycle condition. Samsung Electronics...
Page 254 Outdoor He at Ex changer (OHX) Thermistor - Liquid pipe (T_L) FAN OFF Solenoid Valve - Solenoid Valve - (V_EVI2) Ball Valve - EVI 1(V_EVI1) Accumulator oil Return (V_AR) Liquid pipe (BV_L) Outdoor He at Ex changer (OHX) Samsung Electronics...
Page 255 Top 1 (T_CT1) Pressure Sensor - Compressor 1 (COMP2) Low (PS_L) (COMP1) Thermistor - Liquid pipe (T_L) FAN OFF Solenoid Valve - Solenoid Valve - (V_EVI2) Ball Valve - EVI 1(V_EVI1) Accumulator oil Return (V_AR) Liquid pipe (BV_L) Samsung Electronics...
Page 256 & (T.HP + 3) Hz Hold area Hz Hold release & (T.HP + 1.5) Normal op eration ※ High Pressure < 30 k gf /cm ,g : Compressor Trip release ※ T.HP = Targ et Hig h Pressure Samsung Electronics...
Page 257 0℃ < Ta Hz Down area Ta -10℃, HP Down release -10℃ < Ta 0℃, HP Down area 0℃ < Ta Compressor trip (E410) after staying in this phase for a max of 3 min ※ Ta = Ambient Temperature Samsung Electronics...
Page 258 Heating : Target S H 4 K or 1.5 kgf/cm △P Cooling : Minimum Hz increases if in this state for 3 min Compressor trip (E428) occurs if in this state for 10 min ※△ P =Hig h Pressure –Low Pressure Samsung Electronics...
Page 259 105 / 110 Hz D own release Hz Hold area 100 / 105 Hz Hold release EVIEEV forced control 98 / - Normal operation EVIEEV control release 93 / - ※ Discharge Temperature < 80℃ : Compressor Trip release Samsung Electronics...
Page 260 Heating : Target S H 4 K or 1.5 kgf/cm △P Cooling : Minimum Hz increases if in this state for 3 min Compressor trip (E428) occurs if in this state for 10 min ※△ P =Hig h Pressure –Low Pressure Samsung Electronics...
Page 261 105 / 110 Hz D own release Hz Hold area 100 / 105 Hz Hold release EVIEEV forced control 98 / - Normal operation EVIEEV control release 93 / - ※ Discharge Temperature < 80℃ : Compressor Trip release Samsung Electronics...
Page 262 Second cooling release : SH release occurs 2 min after the first release if the DSH is above 10 K Normal Operation - If in this state for 30 sec, ∙ Cooling : Indoor unit EEV Target SH 6 K ∙ Heating : Main EEV Target SH 6 K Samsung Electronics...
Page 263 If an error is sent from the INVc ontroller HP Down area Compressor trip (E400 or E500) occurs if in this state for 10 min HP Down release Hz Down area Hz Down release Hz Hold area Hz Hold release Normal operation Samsung Electronics...
Page 264 1st step Hz hold : The current frequency is fixed if the outdoor unit current at present is higher than 95% of the maximum current. (It is possible to lower the frequency if necessary) 2nd step Hz down : The frequency is forcibly lowered by 5Hz at specified intervals if the outdoor unit current at present is higher than the maximum current. Samsung Electronics...
Page 265 3RD step Comp trip: Compressors stop and an error is triggered (E462). OCT(A) Compressor Trip (E464, 465, 364, 365) If an error is sent from the INV controller HP Down area HP Down HP Down release Ampere Hz Hold area Hz Down Hz Hold release Ampere Normal operation Samsung Electronics...
Page 266 Hz Hold area if in this state for 40 sec Hz Down area if in this state for 40 sec HP Down area if in this state for 40 sec Compressor Stop & Indoor unit air flow = low if in this state for 40 sec Samsung Electronics...
Page 267 1 K < |Ts - Ti| ≤ 3 K 3 K < |Ts - Ti| High 2) The fan speed is automatically adjusted as shown below, irrespective of inputs on the remote control. Relay fan Other fans Low Low Samsung Electronics...
Page 268 Thermo off : Tr ≥ Ts - A + 1 K - Install Option 2 value Symbol Function Offset the set heating temp Offset the set cooling temp Change the mode (heat → cool) Change the mode (cool → heat) T time Samsung Electronics...
Page 269 - In case of a normal indoor unit, heating offset value of 2 K is applied and this can be adjusted with the option code. Offset value shall not be applied in case that users set up the room temperature using the cable remote control where the tem- perature sensor is built in Samsung Electronics...
Page 270 ∙ In case of using external room temp. sensor ( Installation option SEG4 = 1 ) : △ T = 0 ▪ Notes - Order of priority : Use of external temp sensor > Install offset > Basic option. Samsung Electronics...
Page 271 External room sensor Minimizing fan operation Disuse Disuse Disuse Disuse Use-Heating Use-Heating Disuse Use-Cooling Use-Cooling Disuse Use-Both Use-Both ▪ Notes If you set "02" SEG4 as external room s/s use, Heating compensation temperature will be set as 0℃ . Samsung Electronics...
Page 272 - Quiet mode : it can reduce the noise from fan motor during cooling or heating mode. - Fan feedback indoor unit(ex. RAC, 1way, 2way, 4way): Current Fan speed -1 step (1step = about 20 rpm) - Fan non feedback indoor unit(ex. duct) : H → M, M → L, L → L Samsung Electronics...
Page 273 Operation Off Note 1* * Note 1 : Control of inactive heating units (lower noise/general) Outdoor unit for first priority EDM high-head EDM general outdoor unit 0℃ or lower Above 0℃ Cooling Condensed liquid Hot gas Heating Condensed liquid Samsung Electronics...
Page 274 The drain pump activates if the Float S/W operates in heating mode Cooling or Auto cooling or Dehumidifying mode Outdoor Comp ON Outdoor Comp OFF Detected by the Float S/W Not detected by the Float S/W Drain Pump ON Drain Pump OFF Samsung Electronics...
Page 275 If the temp drops High or lower 38℃ 36℃ Mid or lower High or lower 34℃ 32℃ Mid or lower 30℃ Low Low 28℃ Fan off 26℃ Low Low 20℃ If the temp rises Airflow in heating mode Samsung Electronics...
Page 276: Others
- Error E560 will be triggered if all the compressors on outdoor units are disabled. (The SVC V/V must be closed for outdoor units if modules are installed and all the compressors on a single outdoor unit are disabled.) Samsung Electronics...
Page 277 - Error E560 will be triggered if all the compressors on outdoor units are disabled. (The SVC V/V must be closed for outdoor units if modules are installed and all the compressors on a single outdoor unit are disabled.) Samsung Electronics...
Page 278 - See "Compressor capacity control" for details on compressor operation specifications. Input unit Seg1 Seg2 Seg3 Seg4 Pressure(kgf/cm2,g) 30 (default) Main ▪ Notes - When low pressure value is set, discharged air temperature of the indoor unit will decrease and power of outdoor will increase. Samsung Electronics...
Page 279 Standard (default) Main Shorten the interval by 1/2 ▪ Notes Change the option if an oil leak occurs. Performance may degrade if the option is not changed. Make sure to restore the original value after refilling the oil. Samsung Electronics...
Page 280 Option is not configured Amount of frost formed Cond out, Suction Time ▪ Notes - If this option is configured and the units are in a very humid location, heating performance may degrade due to frequent defrost operation. Samsung Electronics...
Page 281 ▪ Notes - Noise level may increase as the maximum RPM rises. - Do not configure this option if using units in a location that is outside the recommended operation temperature (48℃ ) or permitted external static pressure Samsung Electronics...
Page 282 - If the silent mode option is configured, the noise level decreases. However, performance may degrade. - Noise level according to the specified silent mode LEVEL. Silent mode Noise level (dB) Disabled SPEC LEVEL 1 SPEC – 1/3*(SPEC-49) LEVEL 2 SPEC – 2/3*(SPEC-49) LEVEL 3 Samsung Electronics...
Page 283 Main Level 2 of Type 1 (When outdoor unit is located over 80m above the indoor unit) Type 2 (When indoor unit is over 30m above the outdoor unit) ▪ Notes - Incorrect settings may damage the system. Samsung Electronics...
Page 284 100~170m) Level 2 (When equivalent length of farthest indoor unit from the outdoor unit is over 170m) ▪ Notes - Incorrect settings may seriously damage the system. - Setting is unnecessary if high-head condition is set. Samsung Electronics...
Page 285 Set temperature + 3 K Set temperature Target evaporation temperature (when the outdoor temperature is low) Target evaporation temperature (when the outdoor temperature is high) ECO for heating Set temperature Set temperature - 2 K Current indoor temperature Target high pressure Samsung Electronics...
Page 286 Target low pressure (6.5kgf/cm2,g if power mode is enabled) Input unit Seg1 Seg2 Seg3 Seg4 Energy control Operation Disabled (default) Main Energy saving Power ▪ Notes - Operating in energy saving mode, capacity might decrease compared to normal operation mode. Samsung Electronics...
Page 287 - If the Channel address is set, the same channel address is assigned to the sub outdoor units, indoor units, and MCUs connected to a main outdoor unit. ▪ Control specifications in detail Input unit Seg1 Seg2 Seg3 Seg4 Channel address Automatic setting (default) Main Manual setting for channel 0~15 0 - 15 Samsung Electronics...
Page 288 - The maximum cooling capacity is not restricted if the outdoor temperature is low and it is difficult to secure low and high pressures. Input unit Seg1 Seg2 Seg3 Seg4 Max capacity restriction Enabled (default) Main Disabled Samsung Electronics...
Page 289: Key Options
(Addressing) communication address SEG 1 SEG 2 SEG 3 SEG 4 After communication setting MCU, Indoor unit address I/U: "A" I/U: "0" Reception address (Usual occasion) MCU: "C" MCU: "1" (in decimal number) ※ I/U : Indoor unit Samsung Electronics...
Page 290: List Of Field Setting Items
To increase cooling or heating speed. Restrict excessive capacity increase when operating indoor units with small Max. capacity restriction capacity. Gas leak Pump down If the gas leak occurred it should be entered in the pump down operation. Samsung Electronics...
Page 291: Outdoor Unit Option Switch Settings (Cont.)
K4 x n times Ones digit (0 ~ 9) * K4: Press for 2 seconds - automatic detection of MCUs' quantity Step9 K2: long Save Restart * Press K1 for 2 seconds to exit without save regardless of setting step. Samsung Electronics...
Page 292 - Press and hold the K2 button - All settings are saved - After a screen flickers between 3 seconds, and tracking normally ▪ Cancel settings - Press and hold the K1 button to exit without saving the settings Samsung Electronics...
Page 293: How To Check The View Mode Using A Tact Switch
- K4 switch is pressed for a long time, all options settings return to the factory settings, but the settings are saved is not. K2 switch is pressed for a long time, 7-Segment enters the tracking mode and the settings will be saved. Samsung Electronics...
Page 294 However, if the external contact LEVEL 5 / External contact ineterface module(MIM-B14) is used, LEVEL 6 / External contact entering the silent mode is available LEVEL 1 with contact signal in cooling and heat- LEVEL 2 ing mode. LEVEL 3 Samsung Electronics...
Page 295 If the gas leak occurred it should be Gasleak Pumpdown Main entered in the pumpdown operation. Enabled Unused option Main Unused option Unused option by this model Disabled (Factory default) LA KIT option Main Set when LA Kit is installed. Enabled Samsung Electronics...
Page 296 Disabled (default) the diameter of Main Reduction od the diameter of liquid Enabled liquid pipe pipe. ※ There is a risk of water leakage during emergency operation for indoor unit communication error. Please be careful when using it. Samsung Electronics...
Page 297 - Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction. Samsung Electronics...
Page 298 87 °C → 0, 8, 7 8 times IPM temperature (Compressor 1) 87 °C → 0, 8, 7 9 times IPM temperature (Compressor 2) 87 °C → 0, 8, 7 10 times CT sensor value (Compressor 1) 2 A → 0, 2, 0 Samsung Electronics...
Page 299 Indoor unit: "A" Indoor unit: "0" Address MCU: "C" MCU: "1" (ex: 07) SEG1 SEG2 SEG3,4 9 times Manually assigned address of the units MANU Address Indoor unit: "A" Indoor unit: "0" (ex: 15) ※ I/U : Indoor unit Samsung Electronics...
Page 300: Applications
Silent mode Main However, if the external contact interface module (MIM-B14) is used, LEVEL 2/External contact entering the dilent mode is available LEVEL 3/External contact with contact signal in cooling and LEVEL 1 heating mode. LEVEL 2 LEVEL 3 Samsung Electronics...
Page 301: Application Of External Contact Interface Module
2. Connect the 2-pin wiring harness to the interface module at CN83 (Figure 2) and to the indoor unit at CN83. 3. Connect the 4-pin wiring harness to the interface module at CN81(Figure 2) and to the indoor unit at CN81. 4. Restore power to the indoor unit. Samsung Electronics...
Page 302 • If option setting 0 or 1, when power is applied, contacts are normally closed. If error code occurs, contacts open, breaking the circuit for the external device. Numbers correspond to inputs and outputs as described in Table 1. Note: Do not directly connect module to external contact. Use correctly sized external relays. Figure 3. External contact interface module wiring diagram Samsung Electronics...
Page 303: Application Of Auxiliary Heat Module
Do not use contacts 1 and 2. Note: Do not directly connect module to external contact. Use correctly sized external relays. Figure 4. External contact interface module: wiring diagram for auxiliary heat Samsung Electronics...
Page 304 However, if the external contact interface LEVEL 3 / Auto night-time module (MIM-B14) is used, entering the LEVEL 1 / External contact silent mode is available LEVEL 2 / External contact with contact signal. LEVEL 3 / External contact Samsung Electronics...
Page 305: Application Of Mode Select Switch
HP (common in the SAC market) - Operation of both heating and cooling modes is not possible. Single cycle control is only possible → ※ HR (Heat Recovery) : Operation of both cooling and heating modes is possible (relatively costly) Samsung Electronics...
Page 306 - Use the upper-level controller (software) : Set dedicated mode → Available operation modes are limited Automatic detection of Information on the cooling-only outdoor unit is shared with all the other units → cooling-only outdoor unit Available operation modes are limited Samsung Electronics...
Page 307 (Figure 2). 3. Connect the correctly colored wire (refer to Figure 3) on the supplied wiring harness into the hole below the screwdriver. Use cau- tion to prevent damage to the tabs. 4. Repeat for the other two wires. Samsung Electronics...
Page 308 • If set to Cool, the outdoor unit operates in cooling mode only. • If set to Heat, the outdoor unit operates in heating mode only. • If set to Auto, the local wired or wireless remote control determines the operating mode (heat/cool) of the outdoor unit. Samsung Electronics...
Page 309 • If set to Cool, the outdoor unit operates in cooling mode only. • If set to Heat, the outdoor unit operates in heating mode only. • If set to Auto, the local wired or wireless remote control determines the operating mode (heat/cool) of the outdoor unit. Samsung Electronics...
Page 310: Test Operation
- Outdoor unit’s 4-way valve operation related to outdoor air is checked - Outdoor unit’s EVI EEV operation is checked - Outdoor unit’s Main EEV operation is checked ( ※ Checked only if "heating" mode is on during Auto Trial Operation) Samsung Electronics...
Page 311 Some items are not inspected, depending on the installation environment and operation condition. These items are indicated as "Unidentified". e.g., If the system is installed with modules and none of the outdoor units operate due to insufficient indoor load, items related to the outdoor units will not be inspected. Samsung Electronics...
Page 312 - Check the active outdoor and indoor units for the presence of noise. - Check the outdoor and indoor units for drainage. - To check more specific operation status, use the S-NET. ※ Use the User Manual to explain how to use the air conditioning system to the user. Samsung Electronics...
Page 313: Auto Trial Operation Flow Chart
The same applies when performing Auto Trial Operation after a compressor is operated (generally, leave idle for at least one hour). Starting the operation when the pressure sensors and thermistors are not stable can degrade the inspection accuracy. Samsung Electronics...
Page 314: How To Resolve Ng Items
- Thermistors on indoor units where outdoor air is applied are excluded from inspection. - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 315 If you start inspection immediately after operation, the temperature is not stable and this can degrade the inspection accuracy. - To replace a component or inspect the PBA, be sure to cut off the power supply first.A If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 316 Use the blower to regulate the air temperature to a similar level. - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 317 Perform Auto Trial Operation again. ■ Precautions - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 318 Auto Trial Operation again. - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 319 Perform Auto Trial Operation again. ■ Precautions - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 320 Perform Auto Trial Operation again. ■ Precautions - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 321 Perform Auto Trial Operation again. ■ Precautions - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 322 Perform Auto Trial Operation again. ■ Precautions - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 323 Perform Auto Trial Operation again. ■ Precautions - To replace a component or inspect the PBA, be sure to cut off the power supply first. If inspection must be performed with the power supply on, exercise extra care to prevent electric shock. Samsung Electronics...
Page 324: Amount Of Refrigerant Automatically Checking
- Add 10% of total amount of refrigerant and restart the refrigerant amount check. ● Judgment not available - Check if the function of refrigerant amount check id executed within the guaranteed temperature range. Run trial operation to check if there are other problems on system. Samsung Electronics...
Page 325: Nomenclature
(3) Version (Model Year) (7) Rating Voltage 2016 1ø, 220~240V, 50Hz 2017 3ø, 380~415V, 50Hz 2018 208~230V, 60Hz, 3ø 2019 460V, 60Hz, 3ø 2020 2021 (4) Product type (8) Mode (Function) Outdoor Unit Heat Pump Indoor Unit Heat Recovery Samsung Electronics...
Page 326 China china.samsungportal.com © Samsung Electronics Co., Ltd. February 2022. This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No. AC-00294E_1...

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Samsung AM072BXV Series Service Manual

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