Contents 1. Precautions ....................................1-1 Precautions for the Service ............................3 1-2 Precautions related to static electricity and PL ....................3 1-3 Precautions for the Safety ............................4 1-4 Precautions for handling a system containing refrigerants .................5 1-5 Precautions for the brazing ............................5 1-6 Precautions for charging refrigerants ........................5 2.
Page 3
Contents 4-3-4 Communication tracking error(E604) ......................61 4-3-5 Water outlet (backup heater) temperature sensor error (E903) ............62 4-3-6 DHW tank temperature sensor error (E904) ...................63 4-3-7 Flow switch (ON) and water pump (OFF) error (E911) ...............64 4-3-8 Flow switch (OFF) and water pump (ON) error (E912) ...............65 4-4 Other troubleshootings .............................66 4-4-1 Heating during the cooling mode / Cooling during the heating mode ........66 4-4-2 Initial diagnosis when the OUTDOOR UNIT is not powered on ............68...
Check whether the installation location is at least two meters away from other electronic products such as TV, video, or audio. – Otherwise, the video quality might be degraded or noise might be generated. Do not let end users repair the products themselves. – Unauthorized disassembly might cause electric shock or fire. Samsung Electronics...
– R410A is a quasi-azeotrope of two refrigerants. Make sure to charge liquid one when adding refrigerant. If you charge gaseous refrigerant, it may affect the capacity and reliability of the product as a result of change formation of the refrigerant. Samsung Electronics...
– The container may get damaged by the heat and result in explosions. Do not operate the product without pressure switch(for product protection) and sensor. – If there are any internal blockage, high refrigerant pressure increase may damage the product or exterior. Samsung Electronics...
It has developed power saving compressors for more than thirty years. EHS(Eco Heating System) compressor adopts a double-rotor BLDC compressor with permanent magnets made by Samsung. Electricity for the compressor rotor is obtained from a neodium-iron-boron permanent magnetic material (boron magnet can attract iron material weighing 1000 times its own weight.) It strengthens the rotary moment of the compressor to maximize the entire efficiency of the...
This concept will help space saving and lower costs for pipe line reduction. Running Costs-Reduction of Up to 32.4% Samsung EHS, known for its world class efficiency (12kW floor heating system with COP of 4.51), can reduce 32.4% of your run- ning costs as compared to a gas boiler.
*1) A2W Condition #1 : (Heating) Water In/Out 30℃/35℃, Outdoor Air 7℃DB/6℃WB; (Cooling) Water In/Out 23℃/18℃, Outdoor Air 35℃DB. *2) Sound pressure was acquired in an anechoic room. Thus actual noise level may be different depending on the installation conditions. Samsung Electronics...
1) Unscrew and remove the two screws of the power supply cable on the terminal block. (Use '+' type screw driver) 2) Unscrew and remove the two screws on the top & bottom of the ELCB. (Use '+' type screw driver) Samsung Electronics...
Page 15
CABINET BOTTOM. (Use '+' type screw driver) 2) Unscrew and remove the three screws (Use ‘+’type screw driver) 3) Pull the PCB support to each direction. Please note that PCB support may be broken by your excessive pulling. Samsung Electronics...
CABI TOP 1) Unscrew and remove the nine screws on each side of the CABI TOP. (Use '+' type screw driver) CABI INSTALL 1) Unscrew and remove the screw FRONT on the CABI INSTALL FRONT. (Use ‘+’type screw driver) Samsung Electronics...
Page 17
Disassembly and Reassembly Disassembly and Reassembly Parts Procedure Remark GUARD COND 1) Pull the sensor from Guard Cond. 2) Unscrew and remove the four screws on the GUARD COND. (Use '+' type screw driver) Samsung Electronics...
Page 18
Disassembly and Reassembly Parts Procedure Remark CABI BACK RH 1) Pull the sensor from the CABI BACK RH. 2) Unscrew and remove the nine screws on each side the CABI BACK RH. (Use '+' type screw driver) Samsung Electronics...
Page 19
Disassembly and Reassembly Parts Procedure Remark CABI INSTALL BACK 1) Unscrew and remove the 7 screws in the Cabinet-Install Back. (Use '+' type screw driver) Samsung Electronics...
Page 20
Disassembly and Reassembly Parts Procedure Remark CABI FRONT LF 1) Unscrew and remove 10 screws. in the Cabinet-Front LF. (Use '+' type screw driver) Samsung Electronics...
Page 21
Disassembly and Reassembly Parts Procedure Remark Samsung Electronics...
Page 22
Disassembly and Reassembly Parts Procedure Remark 1) Turn the two nuts as shown in the picture and remove them. (Use adjustable wrench) Samsung Electronics...
Page 23
Disassembly and Reassembly Parts Procedure Remark MOTOR 1) Remove the fan. 2) Unscrew and remove the eight motor screws. (Use '+' type screw driver) 3) Disconnect the motor wire from the Ass'y Control Out. Samsung Electronics...
Page 24
1) Unscrew and remove the two screws on the BRACKET MOTOR. (Use ‘+’type screw driver) HEATER 1) Unscrew and remove the three screws on the BRACKET MOTOR. (Use '+' type screw driver) 2) Disconnect the heater wire from the ASSY CONTROL OUT. Samsung Electronics...
Page 25
Parts Procedure Remark CONTROL OUT 1) Disconnect the six connectors form the ASSY CONROL OUT 2) Unscrew and remove the two mounting screws on the CONTROL OUT. (Use '+' type screw driver) 3) Separate the ASSY CONTROL OUT. Samsung Electronics...
Page 26
Remark ASSY 4WAY VALVE 1) Purge the coolant first. 2) Separate the pipe from the Entrance/Exit using a welder. When removing the compressor, heat exchanger and pipe, purge the completely and remove the pipe with a welding flame. Samsung Electronics...
Page 27
1) Unscrew and remove the nut on the COVER TERMINAL. (Use adjustable wrench) 2) Separate the compressor wire. 3) Separate the COMPRESSOR FELT SOUND. 4) As shown in the picture, unscrew and remove 3 mounting screws from the bottom. (Use Adjustable Wrench) Samsung Electronics...
Page 28
Disassembly and Reassembly Parts Procedure Remark ASS'Y WATER 1) Separate the Hose from the Water tube TUBE IN/OUT using a plyer. Samsung Electronics...
Page 29
(Use '+' type screw driver) 2) Separate the Bracket PHE Top. 3) Separate the pipe from the Entrance/Exit using a welder. 4) As shown in the picture, unscrew and remove 2 mounting screws from the partition. (Use Adjustable Wrench) Samsung Electronics...
Page 30
Disassembly and Reassembly Parts Procedure Remark ASSY COND OUT 1) Unscrew and remove 2 screws on each side of the Assy Cond Out. (Use '+' type screw driver) Samsung Electronics...
Page 31
1) Unscrew and remove the nine screws on each side of the CABI TOP. (Use '+' type screw driver) CABI INSTALL 1) Unscrew and remove the screw FRONT on the CABI INSTALL FRONT. (Use '+' type screw driver) Samsung Electronics...
Page 32
Disassembly and Reassembly Parts Procedure Remark GUARD COND 1) Pull the sensor from Guard Cond. 2) Unscrew and remove the four screws on the GUARD COND. (Use '+' type screw driver) Samsung Electronics...
Page 33
Disassembly and Reassembly Parts Procedure Remark CABI BACK RH 1) Pull the sensor from the CABI BACK RH. 2) Unscrew and remove the nine screws on each side the CABI BACK RH. (Use '+' type screw driver) Samsung Electronics...
Page 34
Disassembly and Reassembly Parts Procedure Remark CABI INSTALL BACK 1) Unscrew and remove the 8 screws on the CABI FRONT LF. (Use '+' type screw driver) Samsung Electronics...
Page 35
Disassembly and Reassembly Parts Procedure Remark Samsung Electronics...
Page 36
Disassembly and Reassembly Parts Procedure Remark 1) Turn the two nuts as shown in the picture and remove them. (Use adjustable wrench) Samsung Electronics...
Page 37
Disassembly and Reassembly Parts Procedure Remark MOTOR 1) Remove the fan. 2) Unscrew and remove the eight motor screws. (Use '+' type screw driver) 3) Disconnect the motor wire from the Ass'y Control Out. Samsung Electronics...
Page 38
1) Unscrew and remove the two screws on the BRACKET MOTOR. (Use ‘+’type screw driver) HEATER 1) Unscrew and remove the three screws on the BRACKET MOTOR. (Use '+' type screw driver) 2) Disconnect the heater wire from the ASSY CONTROL OUT. Samsung Electronics...
Page 39
Disassembly and Reassembly Parts Procedure Remark CONTROL OUT 1) Disconnect the six connectors form the ASSY CONROL OUT 2) Unscrew and remove the three screws on the CONTROL OUT. (Use '+' type screw driver) 3) Separate the ASSY CONTROL OUT. Samsung Electronics...
Page 40
Remark ASSY 4WAY VALVE 1) Purge the coolant first. 2) Separate the pipe from the Entrance/Exit using a welder. When removing the compressor, heat exchanger and pipe, purge the completely and remove the pipe with a welding flame. Samsung Electronics...
Page 41
Remark COMPRESSOR 1) Unscrew and remove the nut on the COVER TERMINAL. (Use adjustable wrench) 2) Separate the compressor wire. 3) Separate the COMPRESSOR FELT SOUND. 4) As shown in the picture, unscrew and bottom. (Use Adjustable Wrench) Samsung Electronics...
Page 42
2) As shown in the picture, unscrew and remove the two screws from the BRACKET PHE. (Use adjustable wrench) ASSY COND OUT 1) Unscrew remove the two screws on each side of the ASSY COND OUT. (Use '+' type screw driver) Samsung Electronics...
E464 Check the obstacles around the indoor and outdoor units ⊙ ○ ○ error Check whether the outdoor unit service valve is open Check whether the indoor/outdoor installation pipe/ wiring are correct Off Blink On Samsung Electronics...
OUTDOOR UNIT body? Is the wire of compressor Check the compressor wire. connected correctly? Is there any abnormal operation? Replace the compressor. (ex. abnormal noise, over-vibration and etc) Power off and replace the INVERTER PCB. Samsung Electronics...
The indoor/outdoor EEV operates normally? Check the EEV. Clogging in the pipe? (ex-filter) Check the pipeline. While the AC or heater is on, Replace the parts. the indoor/outdoor (Electrical or fan) fan operates normally? Check the amount of coolant. Samsung Electronics...
(Refer to E251) Test operation Is the EEV normal? Check the EEV Check if the pipes or filters Check the pipes and filters are blocked up. Is it blocked? Check the amount of refrigerant Samsung Electronics...
Is each sensor at the right position? Move each sensor to its right position. Repair the pipes and recharge Are the pipes damaged or blocked up the refrigerant. in the OUTDOOR UNIT? Change the MAIN PCB Samsung Electronics...
1~6V during the operation? Does the fan operate during the Replace the fan motor. TEST operation of cooling mode. # TEST operation # press K1 or K2 button on the MAIN PCB after power on. Cont. Samsung Electronics...
Page 53
Tr ouble s hooting FAN 1 error(E458), FAN 2 error(E475) Cont. Do the pin voltages #6-#3 of CN90 and 91 Replace the INVERTER PCB. change in the range of 4~5V(high) and 0~1V(low) as you rotate the fan manually? Exchange INVERTER PCB Samsung Electronics...
OUTDOOR UNIT body? Is the wire of compressor Check the compressor wire. connected correctly? Is there any abnormal operation? Replace the compressor (ex. abnormal noise, over-vibration and etc) Power off and replace the INVERTER PCB Samsung Electronics...
Is the reactor connected correctly? Check the connection of reactor Is the fuse blown? Replace the fuse. Does the error occur frequently? Replace the INVERTER PCB. Check the input power AC 198~264V for 1phase model AC 342~457V for 3phase model Samsung Electronics...
Check the bottom of the control box. Remove the obstacles. Is anything blocking heatsink? Check the air flow when the fan starts to operate. Are the PCB and Heatsink Tighten screw up at inverter PCB. combined well ? Replace the INVERTER PCB. Samsung Electronics...
Is the resistance between Replace the compressor. each phase(*) of compressor smaller than 2Ω? (*) U↔V, V↔W, W↔U Is the evaporator sensor connected to Connect the sensor correctly. CONTROL KIT correctly? Is refrigerant charged? Charge refrigerant. Replace the INVERTER PCB. Samsung Electronics...
CONTROL KIT Mixing valve temp sensor (open/short) When the product does not work during or after the concrete curing function and it displays “CC” on the wired remote controller, contact the installer to cancel the concrete curing function. NOTE Samsung Electronics...
Check the location of EEPROM by referring to the schematic diagram Are there any problems such as SHORT or dewetting among the Replace PCB EEPROM pins? After reset the power, does the same error occur. Normal operation Replace PCB Samsung Electronics...
Reconnect the cable and reset the power. If the problem is not solved, replace the communication PBA and the OUTDOOR UNIT PCB. Good +0.7V -0.7V cf.) If there is no oscillo scope, it can be replaced multimeter instead of osillo scope. Samsung Electronics...
2. LED of INVERTER PCB is as following: Red: ON, Green: ON, Yellow: blinking → INVERTER PCB is normal. MAIN PCB (CN39) Replace the INVERTER PCB [7-segment of MAIN PCB] [LED of INVERTER PCB [LED of INVERTER PCB 3phase model] 1phase model] Samsung Electronics...
Check the communication cable in the OUTDOOR UNIT PCB and replace the PCB. Reconnect the cable and reset the power. If the problem is not solved, replace the communication PBA and the OUTDOOR UNIT PCB. Good +0.7V -0.7V Samsung Electronics...
Measure the resistance between the B/W two terminals. Temperature Resistance (°C) (KΩ) Does the measured resistance 12.1 accord with the value in the table 18.0 on the right side? 27.3 43.0 Replace the PBA and reset the power. Replace the thermistor. Samsung Electronics...
Resistance is about 195 kΩ at 26°C. Measure the resistance between the B/W two Temperature Resistance terminals. (°C) (KΩ) Does the measured resistance accord with the value in the table on the right side? Replace the PBA and reset the power. Replace the thermistor. Samsung Electronics...
Measure the water flow rate. Is the flow rate bigger than 16lpm? Replace or add the water pump. E911 Replace the PBA and reset the power. • Water pump ON (Flow S/W off) : NOT enough water flow < 16 lpm Samsung Electronics...
Is it SHORT? Measure PBA status whether it is Replace the flow switch. OPEN or SHORT. Is it SHORT? Does the water flow? Is there any other water Replace the PBA. pump installed? Check the extra water pump. Samsung Electronics...
4-WAY the outdoor PCB. valve coil during the operation? Go to the next page 4-WAY valve main body error * Normal resistance value of 4 way valve coil : 1.5±0.15㏀ (at 20℃) 4-16 Samsung Electronics...
Page 68
Dose the voltage of DC300V apply to the connector of outdoor Check the motor wire. fan during the operation of outdoor unit? Outdoor PCB error * Normal resistance value of EEV valve coil(Red-Black or Yellow-Orange) : 92±8Ω (at 20℃) Samsung Electronics...
Are the option DIP switches the option DIP switches inside the wired remote controller co ured correctly? Is there an error Check the system depending message displayed on the wired remote on the error display controller display? Check the target temperature Samsung Electronics...
CN39(MAIN PCB),CN31(INVERTER PCB) Error 203 display ALL OFF Is the FUSE on INVERTER PCB blown? Exchange the FUSE Check each BLDC FAN motor short or not, by resistance between Exchange FAN motor pin #1 and #3 Exchange INVERTER PCB Samsung Electronics...
5-2 Outdoor Unit █ MAIN PCB (AE090/120/140/160JXYDEH/EU, AE090/120/140/160JXYDGH/EU) This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 75
PCB Diagram █ INVERTER PCB (AE090JXYDEH/EU) This Document can not be used without Samsung’s authorization. Local Function Description CN71 COMP 42819-3213 BLK REACTOR-A2 REACTOR_A YTR250 REACTOR-B2 REACTOR_B YTR250 REACTOR-A1 REACTOR_A YTR250 REACTOR-B1 REACTOR_B YTR250 AC POWER BRN WIRE AC POWER...
Page 76
PCB Diagram █ INVERTER PCB (AE120/140/160JXYDEH/EU) This Document can not be used without Samsung’s authorization. Local Function Description CN32 COMP 42819-3213 BLK REACTOR-A1 REACTOR_A YTR250 REACTOR-B1 REACTOR_B YTR250 AC POWER BRN WIRE AC POWER SKY/BLU WIRE CN91 BLDC FAN2 YW396-06V WHT...
Page 77
PCB Diagram █ INVERTER PCB (AE090/120/140/160JXYDGH/EU) This Document can not be used without Samsung’s authorization. Local Function Description CN800 COMP 42819-3213 BLK CN600 REACTOR HLW1005-02 BLK R-IN YTR250 S-IN YTR250 T-IN YTR250 CN100 POWER YW396-03AV WHT CN91 BLDC FAN2 YW396-06V WHT...
Page 78
PCB Diagram █ EMI PCB (AE120/140/160JXYDEH/EU) This Document can not be used without Samsung’s authorization. Local Function Description POWER OT-048 EARTH EARTH YEL/GRN WIRE 1(L) POWER BRN WIRE POWER BRN WIRE POWER SKY/BLU WIRE 2(N) POWER SKY/BLU WIRE POWER OT-048...
Page 79
PCB Diagram █ EMI PCB (AE120/140/160JXYDGH/EU) This Document can not be used without Samsung’s authorization. Local Function Description EARTH EARTH YEL/GRN WIRE R-IN POWER WHT WIRE S-IN POWER BRN WIRE T-IN POWER BLK WIRE N-IN POWER SKY/BLU WIRE N-INV POWER...
Page 80
█ SUB-HEATER PCB (AE090/120/140/160JXYDEH/EU, AE090/120/140/160JXYDGH/EU) This Document can not be used without Samsung’s authorization. Local Function Description CN02 POWER YW396-03AV YEL CN03 HEATER YW396-03AV WHT Samsung Electronics...
6. Wiring Diagram 6-1 Control Kit This Document can not be used without Samsung’s authorization. This Document can not be used without Samsung’s authorization. Samsung Electronics...
6-2 Outdoor Unit █ 3Phase (AE090/100/120/140JXYDGH) DB68-04593A-03 This Document can not be used without Samsung’s authorization. Samsung Electronics...
Page 83
Wiring Diagram █ 1Phase (AE090/100/120/140JXYDEH) DB68-04592A-03 This Document can not be used without Samsung’s authorization. Samsung Electronics...
7-2 Refrigerant Circuit Diagram This Document can not be used without Samsung’s authorization. T/S #6 HP s/w T/S #2 T/S #1 T/S #4 T/S #3 Comp Accum T/S #5 Exp. v/v Filter Filter Part Description Plate heat exchanger T/S #1...