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9. Troubleshooting

Heat Exchanger freezing/bursting

prevention

■

E908/909

Check the water flow.

prevention

and bursting of Heat Exchanger

Does the water flow satisfy

the recommended flow requirement?

Check the pipe system of the

PHE

Check the Water Out temperature.

Yes

water. (Pump, Strainer, Valves)

Is Water Out temperature higher than 3℃?

Check the EVA In/Out temperature.

Yes

-Check if the Water Out temperature-sensor is defective.
- Confirm that the Water In temperature is low

Is EVA In/Out temperature

below zero?

Yes

-Check the control status of EEV.

-Check the EVA In/Out temperature sensor.

-Check the Water In temperature.

Содержание AM160FNBFEB/EU

Страница 1: ...New DVM Hydro Unit New DVM Hydro Unit HT HE Model HT HE Model 5 10 16Hp HE 5 8Hp HT MODEL AM160FNBFEB EU AM160FNBFGB EU AM250FNBFEB EU AM250FNBFGB EU AM160FNBDEH EU AM320FNBDEH EU AM500FNBDEH EU ...

Страница 2: ...ure and Parts List Planar Figure and Parts List 5 5 Planar Figure and Parts List Planar Figure and Parts List 5 5 Installation and Service Precautions Installation and Service Precautions 6 6 Circuits Circuits 7 7 External Contacts Point External Contacts Point 8 8 Troubleshooting Troubleshooting 9 9 External Contacts Point Indoor Unit Control Flow External Contacts Point Indoor Unit Control Flow ...

Страница 3: ...1 Product Overview and Features 1 Product Overview and Features Low temp Heating Hot water supply Solution Efficient solution Low temp Heating H t t l S l ti Efficient solution Hot water supply Solution ...

Страница 4: ...ations Various OutdoorUnit Combination DVMS DVMSHR DVMWater Outdoor Side Water Solution Load Side DVM S DVMSHR DVM 4HP HR AHU Watercoil HydroUnit 5 10 16HP DVM Water WaterHeating Heatingbywater d i 8 UFH FCU DVM Water DVMGeo Hydro Unit HT 5 8HP DVMECO HotWaterSupply Waterheating ...

Страница 5: ...6 31 5 50 4 Cooling capacity kW 29 46 4 11 2 22 4 14 28 44 8 g p y Cooling Rated flow rate LPM 83 145 36 72 48 92 150 Heating Rated flow rate LPM 92 150 36 72 48 92 150 Heating LPM 92 150 36 72 48 92 150 Dimension s WxHxD mm 520 630 330 520 630 330 800 x 450 x 300 800 x 450 x 300 520 x 627 x 330 520 x 627 x 330 520 x 627 x 330 Net weight kg 35 47 35 38 33 33 40 Installation space Area 0 172 0 172 ...

Страница 6: ... number of models 16 25 4 25 1 11 14 16 6 12 5 1 Max Water Temp 80 80 Same 80 Same 70 Operation Range Hot Water supply 20 35 20 35 Same 20 35 Same 20 32 Operation Ratio A2A A2W 50 130 50 130 Same 50 130 Same 50 150 Water Pipe INLET 25 PT 25 PT Same 25 PF Same 19 PT OUTLET 25 PT 25 PT S 25 PF S 19 PT OUTLET 25 PT 25 PT Same 25 PF Same 19 PT Refrigerant pipe Liquid 9 52 9 52 Same 9 52 Same 9 52 Same...

Страница 7: ...1 Product Overview and Features 1 Product Overview and Features Operating Range Hydro unit ...

Страница 8: ...o unit HT Operating Range Continuous cooling operation possible Ta DB 43 Continuous cooling operation possible with connecting to HR 35 5 20 Ta Ambient temperature LWT 25 80 20 LWT Leaving water temperature ...

Страница 9: ...ut hole for external cabling Ⅰ 330mm D 520mm W Designed as a Cabinet NCT For consistence appearance die cast parts adopted for Cabi RH LF Consists of a plate type heat exchanger an EEV a defrost bypass V V and a flow switch The pipe of the refrigerant is welded Ⅱ Ⅲ Ⅳ The pipes of water are PT 1 male screws for 5Hp 10Hp and PT 1 1 4 male screws for 16Hp Ⅴ ...

Страница 10: ... Low pressure sensor ASSY CABI PARTS ASSY COND EVAP PARTS ASSY FAN PARTS H 1210mm ASSY COMP PARTS D W 330mm 518mm One hole for each of the power cord and the communication cable Designed as a Cabinet P D NCT Hydro Unit HE Same design Inner structure R 134a Cycle Parts R 134a Compressor PHE 2EA EEV 2EA C Box Ⅱ Ⅲ Ⅰ Refrigerant pipe Flare Type 3 8 5 8 Water pipe 5 8Hp PT 1 Ⅳ Ⅴ ...

Страница 11: ...ssembly procedures procedures 5 10 16HP 5 10 16HP Step 1 Assembly ASS Y Step 2 Assembly ASS Y Step 3 Assembly ASS Y CABI p y BASE p y COND p y RH LT Step 4 Assembly ASS Y CONTROL BOX Step 5 Assembly ASS Y CABI FRONT BACK Step 6 Assembly ASS Y CABI TOP ...

Страница 12: ...edures procedures 5 10 16HP 5 10 16HP Step 1 Assembly ASS Y COMP Step 2 Assembly ASS Y COND EVAP Step 3 Assembly ASS Y TUBE Parts Step 4 Assembly COMP FELT and SUB MATERIAL Step 5 Assembly CABINET 1 Step 6 Assembly CONTROL Step 7 Assembly CABINET 2 Step 8 Packing ...

Страница 13: ...2 Product Structure 2 Product Structure ...

Страница 14: ...2 Product Structure 2 Product Structure DVM Hydro Unit HT DVM Hydro Unit HT ...

Страница 15: ...mbol Description CYCLE DIAGRAM 5 10 16HP Symbol Description Symbol Description A EEV T1 EVA In B Defrost BP Valve T2 EVA Out C Check Valve T3 Water In Water Out T2 T4 Ref Gas D PHX T4 Water Out E Flow Switch T2 T4 T3 C D E Ref Gas T1 T3 B E Water In T1 A Ref Liq ...

Страница 16: ... Sensor T_CO Cond Out Temp Sensor T EI EVI In Temp Sensor R410a V_4W E E_M T EW F_S T_EI EVI In Temp Sensor R410a T_EO EVI Out Temp Sensor R410a T_CT Comp Top Temp Sensor T_SUC Suction Temp Sensor T_EW Entering Water Temp Sensor T_LW Leaving Water Temp Sensor LPS HPS PHE 1 T_LW _ T_SUC F_S Flow Switch INV AC HPS T_D T_CT Changing Point Single Comparison Purpose R 410A EEV Evap Out Sensor addition ...

Страница 17: ...se DVM ECO NASA PBA CYCLE DIAGRAM DVM HT COM 1 COM 3 DVM LT Control kit Tair Water Out Tw2 Tref Teva_Out addition Ref pipe 5 8 Tdis Ttop Tsuc Low pressure sensor addition Ref pipe 3 8 Ttop Water In Tw1 Tref Teva_in Tcondout UX5T250FNBEX Concentric heat exchanger Control kit Temp sensor 2000step The EEV addition for the R410A control Ref pipe 3 8 ...

Страница 18: ...ature vacuum chamber A li id f h i h h h l b f i h A liquid transfers heat passing through the plates by transferring heat between it and another liquid When the liquid passes through the plates the Herringbone Plate is generally used to maximize the turbulent flow generally used to maximize the turbulent flow Plate thickness 0 3 0 4 mm Burst pressure 22 7MPa Standard 19MPa Burst pressure 22 7MPa ...

Страница 19: ...ady at the outlet of the indoor steady Mechanism Moves the needle according to the input signal to control the throttle in 1700 steps EVA In Out sensor Controls the super heat degree of the indoor unit when the cooling operation is progress Controls the EEV Step to control the super cooling balance between indoor units Temperature Sensor Controls the EEV Step to control the super cooling balance b...

Страница 20: ...stem Mechanism The magnetturns the reed switch on and off i h l f h Direction of the liquid Precaution for replacement Make sure to close the water pipe and remove the water in the pipe connected to the flow switch before using the replacement Determine the angle of the paddle by checking whether the direction the valve s wire inlet and the pipe before using the replacement Make sure to insert the...

Страница 21: ...ass circuit added Built in flow switch Heat Fin Tube Air heat 2 Compon Heat Exchanger Fin Tube Air heat exchange Plate Heat Exchanger Water heat exchange Temperature Sensor EVA IN OUT EVA IN OUT WATER IN OUT 2 p ents EEV Fan Motor X Flow switch X Flow switch X 3 Control Specifications Common DVM indoor unit specification Common DVM indoor unit specification EHS hot water supply specification ...

Страница 22: ...O EVI Out Temp Sensor R410a T_CT Comp Top Temp Sensor T SUC Suction Temp Sensor Heat Exchanger Plate Heat Exchanger x 2EA Same 13 S Low pressure sensor addition R 410A EEV Control sensor addition R 410A EEV addition T_SUC Suction Temp Sensor T_EW Entering Water Temp Sensor T_LW Leaving Water Temp Sensor 2 Compon Compressor R 134a Same EEV R 134a Addition for R 410A R 410A R 134a High Pressure Sens...

Страница 23: ...4 Disassembly and Reassembly 4 Disassembly and Reassembly ...

Страница 24: ...4 Disassembly and Reassembly 4 Disassembly and Reassembly ...

Страница 25: ...4 Disassembly and Reassembly 4 Disassembly and Reassembly ...

Страница 26: ...4 Disassembly and Reassembly 4 Disassembly and Reassembly ...

Страница 27: ...4 Disassembly and Reassembly 4 Disassembly and Reassembly ...

Страница 28: ...5 Planar Figure and Parts List 5 Planar Figure and Parts List Parts List ...

Страница 29: ...5 Planar Figure and Parts List 5 Planar Figure and Parts List Parts List ...

Страница 30: ...5 Planar Figure and Parts List 5 Planar Figure and Parts List Parts List ...

Страница 31: ...5 Planar Figure and Parts List 5 Planar Figure and Parts List DVM Hydro Unit HT 5 8Hp DVM Hydro Unit HT 5 8Hp ...

Страница 32: ...6 Installation and Service Precautions 6 Installation and Service Precautions DVM HT HE INSTALL MANUAL ...

Страница 33: ......

Страница 34: ...6 Installation and Service Precautions 6 Installation and Service Precautions ...

Страница 35: ...6 Installation and Service Precautions 6 Installation and Service Precautions ...

Страница 36: ......

Страница 37: ...6 Installation and Service Precautions 6 Installation and Service Precautions ...

Страница 38: ...6 Installation and Service Precautions 6 Installation and Service Precautions ...

Страница 39: ...6 Installation and Service Precautions 6 Installation and Service Precautions ...

Страница 40: ...lding the pipes oxide may form inside the pipes and cause damage to parts such as the compressor and valves Adjust the flow rate of the nitrogen flushing with a pressure regulator to maintain 0 05m3 h or less Before welding the pipes on the connection port cover the valve with a wet cloth to protect the parts within the valve ...

Страница 41: ...pes and 25mm or more for gas pipes Yes No Thickness Liquid pipe insulation 9 mm Gas pipe insulation 25 mm Is the material of the insulator either EPDM or NBR Yes No Refrigerant part Pressure of the refrigerant What is the pressure of the refrigerant after performing a 20 minute trial run High pressure kgf cm2 Low pressure kgf cm2 Refrigerant leakage check Is the gauge pressure in 10 minutes after ...

Страница 42: ...essure of the standard operating pressure for 3 hours if there is no standard of operating pressure test using a pressure of 7kgf cm2 Check if the pump works properly Circulation pump Does the circulation pump work properly Yes No Check if the pump works properly Check if water can pass and there are no abnormal noises Check the flow switch meter Are the thickness and length of the power cable app...

Страница 43: ...7 Circuits 7 Circuits Hydro Unit Hydro Unit HT Power supply and communication cable configuration Connecting power and communication cable Communication Terminal block Power Terminal block ...

Страница 44: ... Sensor EVA IN OUT Sensor T B Temperature Fuse EMI FILTER T B DC Load Control EEV Flow Switch 485 Communication Indoor and outdoor unit Com munic ation Thermostat AC 24V AC 220V DC Load Control Flow Switch External Control 485 Communication SUB PBA Wired Remote Control at o T B AC Contact Load Control 3way_1 V V 3way_2 V V 2way V V Control 2way V V Defrost V V Contact Load Control Booster Heater M...

Страница 45: ...actor EEV NASA Communication EVA WATER Temp Sensor Detection circuit Temperature detection circuit NASA Communication NASA Communication Detection circuit Detection circuit Detection circuit T B Temp sensor Room sensor Detection circuit Detection circuit High Low pressure sensor Detection circuit ...

Страница 46: ...7 Circuits 7 Circuits Control Box Parts Layout Drawing of C BOX Picture of C BOX ...

Страница 47: ...7 Circuits 7 Circuits Hydro Unit HT Control Box Inner Parts Layout Drawing of C BOX Picture of C BOX 회로도_Single 회로도_3 phase ...

Страница 48: ...ace the Main PBA Install the previous EEPROM SUB PBA onto the new MAIN PBA Downloading data to the EEPROM is not necessary when replacing the board If the EEPROM SUB PBA is defective Do not replace the MAIN PBA Replace the EEPROM SUB PBA with a new one Download the latest EEPROM data from the PRMS server Write the data onto the EEPROM using the Air Kit Refer to the Air Kit manual Write the data on...

Страница 49: ...onality Troubleshooting wired remote control communications failure 1 Check if the 4WIRE COMM SUB PBA is properly inserted 2 Measure the resistance of the pins of the communication IC on the 4WIRE COMM SUB PBA in the same way as checking the communication problem of the indoor unit PBA After the measurement if the communication IC is defective replace the SUB PBA After the measurement if the commu...

Страница 50: ...7 Circuits 7 Circuits Connecting External Contacts Hydro Unit Hydro Unit HT ...

Страница 51: ...7 Circuits 7 Circuits Connecting External Contacts ...

Страница 52: ...7 Circuits 7 Circuits Connecting External Contacts ...

Страница 53: ...ith an external power source is necessary A dry contact type and a connection with an external power source is necessary DVM HYDRO UNIT HYDRO UNIT HT only provides a contact DVM HYDRO UNIT HYDRO UNIT HT only provides a contact signal necessary to drive the device DVM HYDRO UNIT HYDRO UNIT HT only provides a contact signal necessary to drive the device ...

Страница 54: ...rcuits 3 way and 2 way valve Connections 3 way valve 2 way valve A wet contact type and the PBA provides the power Supports AC 220V of 0 5A or less A wet contact type and the PBA provides the power Supports AC 220V of 0 5A or less ...

Страница 55: ...tat Solar Pump Either type AC230V AC24V can be used as a Thermostat yp When installing the unit only one type of the thermostat should be connected The maximum allowed current is 10mA or lower Power should not be supplied to the input terminal for detection contact signal ...

Страница 56: ... Switch and Error Codes 7 Circuits 7 Circuits Switch and Error Codes ...

Страница 57: ... Switch and Error Codes 7 Circuits 7 Circuits Switch and Error Codes ...

Страница 58: ... air conditioner operation signal is input Pump is turned on Flow switch is detected Indoor unit is turned on in order Indoor unit on signal in order Even while the system is operating if the flow switch is turned off the indoor unit stops Pump is turned on Flow switch f h l S i h i ll d d If the Flow Switch is not detected E911 Indoor unit is turned on If the Flow Switch is normally detected ...

Страница 59: ...9 Diagnosis Checklist 9 Diagnosis Checklist Meanings of First Alphabetical Character Number of Error Code ...

Страница 60: ...d 9 Troubleshooting 9 Troubleshooting Error Codes ...

Страница 61: ...9 Troubleshooting 9 Troubleshooting d Error Codes ...

Страница 62: ...9 Troubleshooting 9 Troubleshooting d Error Codes ...

Страница 63: ...or unit which displays the communication error for the indoor units and check for overlaps in the Is the voltage between the Remove the communication cable which connects the outdoor unit to the indoor unit and measure the 2 cables of the outdoor unit with an oscilloscope p PCB address setup If the indoor unit addresses are overlapped then a communication error will occur In this case a communicat...

Страница 64: ...the indoor unit addresses are overlapped In this case the communication error will occur in every indoor unit 2 or more units with the address incorrectly set If there is no abnormality in the address check Is the voltage between the 2 cables a square wave with DC 0 7V or more as shown in the image below No y the communication cable and change the indoor unit PCB Check the communication cable and ...

Страница 65: ...e tracking Yes No After two minutes find the MCU which displays the communication error and check if the PCB address settings are overlapped Remove the communication cable which connects the outdoor unit to the MCU and measure the 2 cables of the outdoor unit with a oscilloscope No PCB address settings are overlapped A communication error occurs if the indoor unit addresses are overlapped In this ...

Страница 66: ...er flow satisfy the recommended flow requirement No Check the pipe system of the PHE Check the Water Out temperature Yes water Pump Strainer Valves Is the Water Out temperature higher than 3 No Check the defect of Water Out Check the EVA In Out temperature Yes temperature sensor Confirm that the Water In temperature is low Is EVA In Out temperature below zero Yes No Check the control status of EEV...

Страница 67: ...eck the pipe system of the PHE Check the Water Out temperature Yes water Pump Strainer Valves Is Water Out temperature higher than 3 No Check the EVA In Out temperature Yes Check if the Water Out temperature sensor is defective Confirm that the Water In temperature is low Is EVA In Out temperature below zero Yes No Check the control status of EEV Check the EVA In Out temperature sensor Check the W...

Страница 68: ...sensor and the sensor holder accurately mounted No Reconnect the sensor and is less than 2 this error occurs Tw2_i Tw2_o 2 Is the Water Out temperature sensor s resistance value normal Refer to Yes No reinstall the sensor holder resistance value normal Refer to the table of resistance value Yes Sensor defective Replace the sensor During the Indoor Unit operation was there a change in the Water Out...

Страница 69: ...hin 5 seconds this error occurs The signal detection is repeated six times E913 Restart failure Yes No Flow Switch After disassembling the Flow Switch check the junction point signal of the Paddle operation Replace the Flow Switch Is the junction point formed No Replace the Flow Switch Check the water flow Yes Check the pipe system of the water Pump Strainer Valves etc Does the water flow satisfy ...

Страница 70: ...therwise an error occurs No Check the wiring of the thermostat Check if both the cooling and the heating wire hav been connected to each of the thermostat Is the thermostat wired to both 230V and 24V Flow Switch an error occurs Use only one wiring type of either Yes Use only one wiring type of either 230V or 24V Do not use both types 19 20 21 22 230V Thermostat 19 20 21 22 C N H N Cooling Heating ...

Страница 71: ...10 References Wired Remote Control 10 References Wired Remote Control Wired Remote Control for Water Heating common with HT Centre Control ...

Страница 72: ...10 References Wired Remote Control 10 References Wired Remote Control Wired Remote Control for Water Heating common with HT ...

Страница 73: ... Wired Remote Control for Installation Service mode ...

Страница 74: ...10 References Wired Remote Control 10 References Wired Remote Control Device Compatibilty S NET3 I M DVM Hydro Unit DMS2 MWR WW00N MWR WW00N Dedicated wired remote control BACnet On Off Controller ...

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