Daikin VAM350J8VEB Service Manual
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Daikin VAM350J8VEB Service Manual

Vrv system air conditioner
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VAM350J8VEB
VAM500J8VEB
VAM650J8VEB
VAM800J8VEB
VAM1000J8VEB
VAM1500J8VEB
VAM2000J8VEB
draft – 07/02/2022 15:12
Service manual
VRV system air conditioner
EKVDX32A2VEB
EKVDX50A2VEB
EKVDX80A2VEB
EKVDX100A2VEB

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  • Page 1 Service manual VRV system air conditioner VAM350J8VEB EKVDX32A2VEB VAM500J8VEB EKVDX50A2VEB VAM650J8VEB EKVDX80A2VEB VAM800J8VEB EKVDX100A2VEB VAM1000J8VEB VAM1500J8VEB VAM2000J8VEB draft – 07/02/2022 15:12...
  • Page 2 The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N.V.. Daikin Europe N.V. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content and the products and services presented therein.
  • Page 3 Version log Version log Version code Description Date ESIE22-07 Document release February 2022 VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...

  • Page 4: Table Of Contents

    Table of Contents Table of Contents 1 Safety precautions Meaning of warnings and symbols..........................Dangers ................................... Warnings ..................................Cautions ..................................13 Notices .................................... 13 2 General operation 3 Troubleshooting To retrieve error codes and check error history ......................19 3.1.1 Via the indoor unit remote controller BRC1H ....................
  • Page 5 Table of Contents 3.2.53 65-03 – Low outdoor air temperature......................55 3.2.54 6A-00 – Damper related malfunction ......................55 4 Maintenance Maintenance for heat reclaim ventilation units......................57 4.1.1 Maintenance safety precautions ........................57 4.1.2 Checklist for maintenance of the heat reclaim ventilation unit..............58 4.1.3 Maintenance of the air filter ..........................

  • Page 6: Safety Precautions

    Safety precautions 1 Safety precautions The precautions described in this document cover very important topics, follow them carefully. All activities described in the service manual must be performed by an authorized person. If you are NOT sure how to install, operate or service the unit, contact your dealer. In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods, …...

  • Page 7: Dangers

    Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin. WARNING Do NOT apply any permanent inductive or capacitance loads to the circuit without ensuring that this will NOT exceed the permissible voltage and current permitted for the equipment in use.
  • Page 8 WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). WARNING Make sure the work site environment is clean and safe to work in. Beware of spilled fluids, like water, oil or other substances.
  • Page 9 Safety precautions WARNING Make sure the total refrigerant charge is in accordance with the room size in which the unit is installed: please consult the detailed instructions on charging and allowed room sizes in the installation manual. WARNING ▪ NEVER mix different refrigerants or allow air to enter the refrigerant system. ▪...
  • Page 10 Safety precautions WARNING ▪ In order to prevent oxygen deficiency and R32 combustion, keep the room well- ventilated for a healthy work environment. Do NOT work in a confined space. If a refrigerant leak is detected in a confined room or an inadequately ventilated location, do NOT start the work until the area has been ventilated appropriately.
  • Page 11 Safety precautions WARNING ▪ The area MUST be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially toxic or flammable atmospheres. ▪ Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i.e.
  • Page 12 Safety precautions WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. WARNING Prior to start working on systems containing flammable refrigerant, safety checks are necessary to ensure that the risk of ignition is minimised.

  • Page 13: Cautions

    Safety precautions 1.4 Cautions CAUTION Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system. CAUTION To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. CAUTION ▪ Do NOT place any objects or equipment on top of the unit. ▪...

  • Page 14: General Operation

    General operation 2 General operation The EKVDX is an airconditioning unit for pretreatment of incoming supply air from a VAM heat reclaim ventilation unit. For comfort temperature control, it is still required to install a normal indoor unit. Do not place the EKVDX before the heat reclaim ventilation unit. INFORMATION The following figures are just examples and may NOT completely match your system layout.
  • Page 15 General operation   2‒2 For VAM1500+2000 and EKVDX100 a Heat reclaim ventilation unit (VAM) b EKVDX indoor unit c Outdoor unit d User interface e Air inlet duct for EKVDX indoor unit f Discharge air g Duct flange(s) h Drain pipe i Refrigerant piping + transmission cable The EKVDX-A DX coil module is a unit based on the FXSA-A VRV indoor unit (without its fan).
  • Page 16 General operation EKVDX-A/VAM-J8 is a fresh air pre‑treatment solution. Please keep in mind that this is NOT a comfort solution. It CAN be connected to a VRV IV, VRV IV+ or VRV5 Outdoor Unit. There are some exception for combinations due to R32 safety, such as VAM350J8 and EKVDX32A2 combination is NOT allowed, these combination rules are present in the Databook.
  • Page 17 General operation ▪ Example: Remote controller is set to Cooling and temperature is set to 19°C. R5T (discharge temperature) is 19°C but we expect that air will reach the room at 21°C due to heat losses in the ducting. In this case, you MUST use of correction factor 21-13=5 [it means CF=2].
  • Page 18 General operation compatible with VRV IV and VRV IV+, in this case a field setting is required at VAM and EKVDX-A unit to indicate system is R410A. In this case BRC1H51/81 can be used. VAM CAN be installed standalone as well. In this case it should have a separate remote controller.

  • Page 19: Troubleshooting

    Images are in English and for reference ONLY. For more details on the Madoka Assistant please refer to the BRC1H training course material which is available on the Daikin Business Portal. To retrieve the error code To indicate a system error, the controller displays on the messages zone of the home screen.
  • Page 20 Troubleshooting 3 Tap the active error. Result: The detail(s) of the error(s) are shown on the Notifications screen. To check the error history To check the error history with the Madoka Assistant for BRC1H: Action Image for reference Result Tap the settings icon. The Unit settings screen is displayed.

  • Page 21: Error Based Troubleshooting

    Troubleshooting 3.2 Error based troubleshooting 3.2.1 A0-00 – External protection device activated EKVDX-A units Trigger Effect Reset T1‑T2 input is ON and Unit will stop operating Auto reset. field setting 22-1=3. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check if the field setting 22-1 is correctly set according to the following wiring situations on T1‑T2 of X1M terminal of the indoor unit.

  • Page 22: A0-11 - R32 Leakage Detection

    Troubleshooting Possible cause: External source may cause interference. 5 Perform a check of the indoor unit main PCB. See Indoor unit PCB. Possible cause: Faulty indoor unit main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 23: A1-00 - Main Pcb Abnormality

    Troubleshooting Possible cause: External (foreign) vapor substance reacted with R32 leak detection sensor. 6 Perform a check of the indoor unit main PCB. See Indoor unit PCB. Possible cause: Faulty indoor unit main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 24: A3-08 - Drain Pump Connector Open

    Troubleshooting 1 Check the power supply to the indoor unit. See Power supply. Possible cause: ▪ Faulty or disturbance of the power supply (imbalance), ▪ Phase missing, ▪ Power drop, ▪ Short circuit. 2 Check for excess water level in the drain pan. Empty the drain pan and correct installation of drain piping as needed.

  • Page 25: A6-01-02-05-06 - Fan Motor Abnormality - Motor Lock

    Troubleshooting 3.2.6 A6-01-02-05-06 – Fan motor abnormality - motor lock VAM-J8 units Trigger Effect Reset Fan speed does NOT rise Units will stop operating. Remote controller reset. when PCB command fan Sub code Unit Fan motor Fan PCB VAM350~650J8 Supply air VAM800+1000J8 Supply air VAM1500+2000J8...

  • Page 26: A6-10-12-14-16 - Fan Motor Abnormality - Overcurrent Or Ipm Protection

    Troubleshooting 3.2.7 A6-10-12-14-16 – Fan motor abnormality - overcurrent or IPM protection VAM-J8 units Trigger Effect Reset PCB detects too high Units will stop operating. Remote controller reset. current. Sub code Unit Fan motor Fan PCB VAM350~650J8 Supply air VAM800+1000J8 Supply air VAM1500+2000J8 Supply air (bottom)

  • Page 27: A6-11-13-15-17 - Fan Motor Abnormality - Position Detection Error

    Troubleshooting 3.2.8 A6-11-13-15-17 – Fan motor abnormality - position detection error VAM-J8 units Trigger Effect Reset While unit is running: Units will stop operating. Remote controller reset. actual rotation speed by Hall IC sensor on fan motor <fan step command by PCB or no position signal from Hall IC sensor.

  • Page 28: A6-22 - Unstable Fan Rpm

    Troubleshooting 3.2.9 A6-22 – Unstable fan rpm VAM-J8 units Trigger Effect Reset Fan PCB detects irregular Unit will NOT stop Auto reset. fan rpm signals. operating. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check the power supply to the indoor unit.

  • Page 29: A6-29 - Airflow Rate Too Low

    Troubleshooting Possible cause: Ducting is incorrect, too long or has incorrect size. 3 Clean the air filter of the indoor unit(s). See "4 Maintenance" [  57]. Possible cause: Faulty or dirty air filter. 4 Perform a check of the indoor air thermistor. See Thermistors. Possible cause: Faulty indoor air thermistor.

  • Page 30: A6-30 - Airflow Rate Lower Than Normal

    Troubleshooting Possible cause: Faulty indoor unit fan motor. 7 Perform a check of the indoor unit fan PCBs. See Indoor unit fan PCB. Possible cause: Faulty indoor unit fan PCB. 8 Perform a check of the indoor unit main PCB. See Indoor unit PCB. Possible cause: Faulty indoor unit main PCB.

  • Page 31: A8-01 - Fan Motor Abnormality - Power Supply Abnormality

    Troubleshooting 3.2.13 A8-01 – Fan motor abnormality - power supply abnormality VAM-J8 units Trigger Effect Reset Input voltage detected by Units will stop operating. Remote controller reset. PCB too low or too high. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check the power supply to the indoor unit.

  • Page 32: A9-02 - Y1E Expansion Valve Body Abnormality

    Troubleshooting 2 Perform a power reset. If the error disappears and is raised again after a while, check for the presence of an external source causing electrical noise. See External factors. Possible cause: External source may cause interference. 3 Perform a check of the indoor unit expansion valve. See Expansion valve. Possible cause: Faulty expansion valve.

  • Page 33: Drain Back Flow

    Troubleshooting Possible cause: Faulty expansion valve. 6 Perform a check of the indoor unit main PCB. See Indoor unit PCB. Possible cause: Faulty indoor unit main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 34: A1P Capacity Setting Error

    Troubleshooting 3.2.17 AJ-01 – A1P Capacity setting error EKVDX-A and VAM-J8 units INFORMATION In case of EKVDX-A + VAM-J8 combination: check via the remote controller which indoor unit generates this error. Perform procedures described below for the applicable indoor unit. Trigger Effect Reset...

  • Page 35: C1-00 - Communication Abnormality Between Main Pcb And Fan Pcb

    Troubleshooting To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check the power supply to the indoor unit. See Power supply. Possible cause: ▪ Faulty or disturbance of the power supply (imbalance), ▪...

  • Page 36: C4-00 - Liquid Thermistor Abnormality

    Troubleshooting 3.2.20 C4-00 – Liquid thermistor abnormality EKVDX-A units Trigger Effect Reset Indoor unit liquid Unit will stop operating. Auto reset. thermistor read‑out is out of range. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform a check of the indoor unit refrigerant liquid thermistor.

  • Page 37: C6-01-11-21-31 - Compatibility Error Between Main Pcb And Fan Pcb

    Troubleshooting 3.2.22 C6-01-11-21-31 – Compatibility error between main PCB and fan PCB VAM-J8 units Trigger Effect Reset Incompatibility detected Units will stop operating. Power reset. between main PCB and fan PCB. Sub code Unit Fan PCB VAM350~650J8 VAM800+1000J8 VAM1500+2000J8 VAM350~650J8 VAM800+1000J8 VAM1500+2000J8 VAM1500+2000J8...

  • Page 38: C6-05-15-25-35 - Fan Pcb Eeprom Error

    Troubleshooting Sub code Unit Fan PCB VAM350~650J8 VAM800+1000J8 VAM1500+2000J8 VAM1500+2000J8 VAM1500+2000J8 To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Depending on your unit, check if the correct spare part is installed for the appropriate indoor unit fan PCB (see table above).

  • Page 39: C6-06-16-26-36 - Fan Pcb Fin Thermistor Malfunction

    Troubleshooting 1 Depending on your unit, check if the correct spare part is installed for the appropriate indoor unit fan PCB (see table above). See Indoor unit fan PCB. Possible cause: Incorrect spare part PCB. 2 Check if the correct spare part is installed for the indoor unit main PCB. See Indoor unit main PCB.

  • Page 40: C6-07-17-27-37 - Fan Pcb Fin Thermistor Abnormality

    Troubleshooting 3.2.26 C6-07-17-27-37 – Fan PCB fin thermistor abnormality VAM-J8 units Trigger Effect Reset Fan PCB fin thermistor Units will stop operating. Power reset. read‑out is abnormal. Sub code Unit Fan PCB VAM350~650J8 VAM800+1000J8 VAM1500+2000J8 VAM350~650J8 VAM800+1000J8 VAM1500+2000J8 VAM1500+2000J8 VAM1500+2000J8 To solve the error code INFORMATION It is recommended to perform the checks in the listed order.

  • Page 41: Discharge Thermistor Abnormality

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.2.28 CA-00 – Discharge thermistor abnormality EKVDX-A units Trigger Effect Reset Indoor unit discharge Unit will stop operating. Auto reset. thermistor read‑out is out of range.

  • Page 42: R32 Leak Detection Sensor Failure Or Disconnected

    Troubleshooting 3.2.30 CH-01 – R32 leak detection sensor failure or disconnected EKVDX-A units Trigger Effect Reset The R32 sensor NOT Unit will stop operating. Set field setting 25‑14‑01 connected to indoor unit to 02 on the remote main PCB. controller of the faulty indoor unit.

  • Page 43: R32 Leak Detection Sensor Life Time Is Exceeded

    Troubleshooting 3.2.31 CH-02 – R32 leak detection sensor life time is exceeded EKVDX-A units Trigger Effect Reset The R32 sensor detected Indoor unit will stop ▪ Power reset of the operation of 10 years or operating. indoor unit. more. ▪ field setting 25‑14‑01 to 02 on the remote controller of the...

  • Page 44: R32 Leak Detection Sensor Replacement To Confirm

    Troubleshooting 1 Check the error history to see if R32 leak detection sensor was replaced, see "3 Troubleshooting" [  19]. If replaced, check if timer was reset during sensor replacement. Reset as needed. Possible cause: R32 leak detection sensor was replaced without timer reset. 2 Check the operation time of the R32 leak detection sensor of the faulty indoor unit.

  • Page 45: Remote Controller Air Thermistor Abnormality

    Troubleshooting Possible cause: Faulty R32 leak detection sensor. 4 Check if any external (foreign) vapor substance influenced the functioning of the R32 leak detection sensor. Repair as needed. Possible cause: External (foreign) vapor substance reacted with R32 leak detection sensor. 5 Perform a check of the indoor unit main PCB.
  • Page 46 Troubleshooting To solve the error code INFORMATION EKVDX-A + VAM-J8 pair can ONLY have 1 remote controller. In this setup sub remote controllers and/or supervisor remote controllers are NOT allowed. Make sure remote controller is set to normal mode. slave mode or supervisor mode is NOT allowed. VAM-J8 stand‑alone installation can have master and slave remote controllers.

  • Page 47: U5-06 - Supervisor Remote Controller Not Connected/Not Set

    Troubleshooting 3.2.36 U5-06 – Supervisor remote controller not connected/not set EKVDX-A units INFORMATION This error code is NOT generated by the EKVDX-A unit or VAM unit, but by another DX indoor unit in the F1/F2 transmission circuit of the system. The error code is ALSO shown on the remote controller of the EKVDX-A unit.

  • Page 48: U9-01 - Other Indoor Unit Has Error

    Troubleshooting ▪ If error transfers to the other indoor unit, replace the remote controller. See Remote controller user interface. Possible cause: Faulty remote controller. ▪ If error is still present on the indoor unit, Perform a check of the indoor unit main PCB.

  • Page 49: Wrong Remote Controller

    Troubleshooting 1 Check the indoor units for error codes other than U9‑02. See "3.2 Error based troubleshooting" [  21] to solve the error code(s). 2 See "Error based troubleshooting" in the outdoor unit service manual and proceed with the troubleshooting of this error code. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 50: Communication Abnormality With Central Controller

    Troubleshooting 3.2.42 UE-00 – Communication abnormality with central controller EKVDX-A and VAM-J8 units Trigger Effect Reset Transmission abnormality Unit will stop operating. Auto reset. with central controller. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. If all indoor units display error UE-00 1 See "Error based troubleshooting"...

  • Page 51: Abnormality At Vam Unit

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.2.44 UJ-35 – Abnormality at VAM unit EKVDX-A units Trigger Effect Reset Malfunction detected at Unit will stop operating. Power reset. VAM unit.

  • Page 52: Vam Unit Has A6-29 Error

    Troubleshooting To solve the error code 1 Check the VAM-J8 indoor unit for error code A6-28. See "3.2  Error based troubleshooting" [  21] to solve the error code. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 53: Indoor Air Thermistor Malfunction

    Troubleshooting Possible cause: Faulty indoor unit main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.2.49 64-01 – Indoor air thermistor malfunction VAM-J8 units Trigger Effect Reset Indoor air thermistor Unit will continue Auto reset.

  • Page 54: Outdoor Air Thermistor Malfunction

    Troubleshooting 3.2.51 65-01 – Outdoor air thermistor malfunction VAM-J8 units Trigger Effect Reset Outdoor air thermistor Unit will continue Auto reset. open or short‑circuit. operating. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform a check of the outdoor air thermistor.

  • Page 55: Low Outdoor Air Temperature

    Troubleshooting 3.2.53 65-03 – Low outdoor air temperature VAM-J8 units Trigger Effect Reset Low outdoor ambient Unit will stop operating. Auto reset. temperature detected during filter contamination inspection function. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check that the field setting 29-0 is NOT set as 29-0=4 or 29-0=5.
  • Page 56 Troubleshooting 2 Perform a check of the damper motor. See Damper motor. Possible cause: Faulty damper motor. 3 Perform a power reset. If the error disappears and is raised again after a while, check for the presence of an external source causing electrical noise. See External factors.

  • Page 57: Maintenance

    General maintenance/inspection checklist. Next to the maintenance instructions in this chapter, a general maintenance/inspection checklist is also available on the Daikin Business Portal (authentication required). The general maintenance/inspection checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during maintenance.

  • Page 58: Checklist For Maintenance Of The Heat Reclaim Ventilation Unit

    Maintenance 4.1.2 Checklist for maintenance of the heat reclaim ventilation unit Check the air filters at least once a year. The air filters can get blocked due to dust, dirt, leaves, etc. It is recommended to clean the air filters yearly. A blocked air filter can cause an excessive pressure drop and reduced performance.
  • Page 59 Maintenance a Heat exchange element b Handle c Rail d Air filter A Models 350~1000 B Models 1500+2000 3 To clean the air filter, lightly pat it with your hand or remove dust with a vacuum cleaner. If excessively dirty, wash it in water. 4 If the air filter is washed, remove water completely and allow to dry for 20 to 30 minutes in the shade.

  • Page 60: Maintenance Of The Heat Exchange Element

    Maintenance 4.1.4 Maintenance of the heat exchange element NOTICE ▪ NEVER wash the heat exchange element with water. ▪ NEVER touch the heat exchange element paper because it can be damaged if it is forced. ▪ Do NOT crush the heat exchange element. To clean the heat exchange element 1 Take out the heat exchange elements.

  • Page 61: Cleaning The Air Outlet

    Maintenance ▪ Heat exchanger ▪ Drain pan Instructions The heat exchanger and drain pan of the indoor unit can get contaminated and blocked up. It is recommended to clean the heat exchanger and drain pan yearly. A blocked heat exchanger can lead to too low pressure or too high pressure leading to worse performance.

  • Page 62: Technical Data

    Technical data 5 Technical data 5.1 Detailed information setting mode 5.1.1 Detailed information setting mode: Indoor unit See the installer reference guide on business portal for more information. 5.1.2 Detailed information setting mode: Remote controller See the installer reference guide on business portal for more information. VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner...

  • Page 63: Wiring Diagram

    Technical data 5.2 Wiring diagram 5.2.1 Wiring diagram: VAM-J8 The wiring diagram can be found on the outside of the service cover. Legend for wiring diagrams: Printed circuit board Printed circuit board assy (fan) (VAM350~650) A2P-A3P Printed circuit board assy (fan) (VAM800+1000) A2P~A5P Printed circuit board assy (fan) (VAM1500+2000)
  • Page 64 Technical data Remote controller Selector switch Connector for option X14A Connector (CO sensor) X24A Connector (outside damper) X33A Connector (contact printed circuit board) X35A Connector (power supply printed circuit board) Symbols: Field wiring Terminals Connectors Protective earth Noiseless earth Colours: Black Blue Brown...
  • Page 65 Technical data English Translation Caution for ELECTRIC SHOCK Caution for ELECTRIC SHOCK Do not open the el. compo. box cover Do not open the electrical component for 10 minutes after the power supply is box cover for 10 minutes after the turned off.
  • Page 66 Technical data Wiring diagram VAM800+1000J8 INFORMATION The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. 220-240V/220V Q1DI X33A 50/60Hz X14A...
  • Page 67 Technical data Wiring diagram VAM1500+2000J8 INFORMATION The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. 220-240V/220V t ゜ t ゜...

  • Page 68: Wiring Diagram: Ekvdx

    Technical data 5.2.2 Wiring diagram: EKVDX See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed below. Unified legend For applied parts and numbering, refer to the wiring diagram on the unit. Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by "*"...
  • Page 69 Technical data Symbol Meaning Heater FU*, F*U, (for characteristics, refer Fuse to PCB inside your unit) Connector (frame ground) Harness H*P, LED*, V*L Pilot lamp, light emitting diode Light emitting diode (service monitor green) HIGH VOLTAGE High voltage Intelligent eye sensor IPM* Intelligent power module K*R, KCR, KFR, KHuR, K*M...
  • Page 70 Technical data Symbol Meaning Float switch S*NG Refrigerant leak detector S*NPH Pressure sensor (high) S*NPL Pressure sensor (low) S*PH, HPS* Pressure switch (high) S*PL Pressure switch (low) Thermostat S*RH Humidity sensor S*W, SW* Operation switch SA*, F1S Surge arrester SR*, WLU Signal receiver Selector switch SHEET METAL...
  • Page 71 Technical data English Translation Gas sensor circuit Gas sensor circuit Wired remote controller Wired remote controller Control box layout Control box layout Wiring diagram INFORMATION The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book.

  • Page 72: Piping Diagram

    Technical data 5.3 Piping diagram 5.3.1 Piping diagram: Indoor unit EKVDX INFORMATION The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book.

  • Page 73: Component Overview

    Technical data 5.4 Component overview 5.4.1 Component overview: DX unit a Supply air i Gas pipe b Discharge air j Liquid pipe c Heat exchanger k Gas thermistor R3T d Electronic expansion valve Y1E l Drain plug e Switch box m Air thermistor R1T (mounting plate) f Drain pump M1P n Refrigerant liquid thermistor R2T...

  • Page 74: Component Overview: Heat Reclaim Ventilation Unit

    Technical data 5.4.2 Component overview: Heat reclaim ventilation unit VAM350~650J8 a Air inlet h Switch box b Exhaust air fan M2F i Air filter c Exhaust air j Crossflow paper heat exchanger d Bypass damper k Damper motor M1D e Air return l Limit switch S1C f Supply air fan M1F m Indoor air thermistor R1T...
  • Page 75 Technical data VAM800+1000J8 a Air inlet h Switch box b Exhaust air fan M1F i Air filter c Exhaust air j Crossflow paper heat exchanger d Bypass damper k Damper motor M1D e Air return l Limit switch S1C f Supply air fan M2F m Indoor air thermistor R1T g Air supply n Outdoor air thermistor R2T...
  • Page 76 Technical data VAM1500+2000J8 a Air inlet (top) m Air inlet (bottom) b Exhaust air fan (top) M3F n Exhaust air (bottom) c Exhaust air (top) o Damper motor (bottom) M1D d Bypass damper (top) p Limit switch (bottom) S1C e Air return (top) q Bypass damper (bottom) f Air return (bottom) r Damper motor (top) M2D...

  • Page 77: Switchbox Overview

    Technical data 5.5 Switchbox overview EKVDX-A a Main PCB A1P b R32 leak sensor PCB A3P c Transmission wiring terminal X1M d Power supply wiring terminal X2M e External output PCB A2P VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 –...
  • Page 78 Technical data VAM-J8 A VAM350~650J8 B VAM800+1000J8 C VAM1500+2000J8 a Fan PCB A2P a Main PCB A1P a Main PCB A1P b Reactor L1R b Reactor L2R b Fan PCB A2P c Main PCB A1P c Fan PCB A3P c Fan PCB A4P d Power supply wiring d Fan PCB A2P d Reactor L3R...

  • Page 79: Field Information Report

    Technical data 5.6 Field information report See next page. VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...
  • Page 80 In case a problem occurred on the unit which could not be resolved by using the content of this service manual or in case you have a problem which could be resolved but of which the manufacturer should be notified, we advise you to contact your distributor.
  • Page 81 Application information Application (house, apartment, office,…): New project or reimbursement: Piping layout / Wiring layout (simple schematic): Unit / Installation information Model name: Serial number: Installation / commissioning date: Software version user interface: Software version outdoor PCB: Provide pictures of the field settings overview (viewable on the user interface). draft – 07/02/2022 15:12...

  • Page 82: Service Tools

    Technical data 5.7 Service tools 1 For an overview of the available service tools, check the Daikin Business Portal (authentication required). 2 Go to the tab After-sales support on the left navigation pane and select Technical support. 3 Click the button Service tools. An overview of the available service tools for the different products is shown.

  • Page 83: Field Settings

    Images are in English and for reference ONLY. For more details on the Madoka Assistant please refer to the BRC1H training course material which is available on the Daikin Business Portal. To set as installer mode In order to retrieve the field settings, the Madoka Assistant app has to be set as installer mode.
  • Page 84 Technical data Action Image Result Tap Application version Installer mode screen is 5 times. displayed. Select (tap) the length The Madoka Assistant of time the Madoka app is set as installer Assistant app is set as mode. installer mode: ▪ Temporary 30 minutes ▪...
  • Page 85 Technical data Action Image Result Tap Field settings. The Field settings screen is displayed. Tap and select the type Field settings can now for which you want to be set for the selected set the field settings: type. ▪ Indoor unit ▪...
  • Page 86 Technical data Action Image Result In the case of setting ▪ case per indoor unit during individual setting per group control (When indoor unit, current Mode No. such as 20, settings 21, 22, 23, 25 are displayed. selected), tap and ▪...
  • Page 87 Technical data Action Image Result Tap Apply to remote Changes are applied to controller. the field settings. Tap Apply. Changes to the field settings are confirmed. Tap Return to field Field settings are saved. settings. VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 –...

  • Page 88: Overview Of Field Settings For Dx Units

    Technical data Service manual VAM350~2000J8VEB + EKVDX32~100A2VEB VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...
  • Page 89 Technical data VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...

  • Page 90: Overview Of Field Settings For Heat Reclaim Ventilation Units

    Technical data Service manual VAM350~2000J8VEB + EKVDX32~100A2VEB VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...
  • Page 91 Technical data VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...
  • Page 92 Technical data Settings for all configurations Setting 17(27)-4: First choose the fan speed. Set it to high or ultra-high. Flow "All other system configurations" is not applicable when combining VAM with EKVDX. Check the field settings for both units to make sure the combination of VAM and EKVDX is operational Direct duct connection All other system configurations or external fan...
  • Page 93 Technical data About setting 19(29)-0-04 and 19(29)-0-05 ▪ When you have configured setting 19(29)‑0‑04 successfully, the system automatically changes it to setting 19(29)‑0‑01. ▪ When you have configured setting 19(29)‑0‑05 successfully, the system automatically changes it to setting 19(29)‑0‑02. NOTICE If the ducting is changed, install clean filters and reconfigure setting 19(29)‑0‑04 or 19(29)‑0‑05.
  • Page 94 Technical data e Maximum length of connection line: 500 m VAM VAM heat reclaim ventilation unit NOTICE Factory settings: Do NOT change the switch settings when a controller is connected. SS1 is a setting switch to operate the unit without controller. Changing the switch setting when a controller is connected will stop the unit from operating normally.
  • Page 95 Technical data P1 P2 P1P2 P1 P2 a Controller for air conditioner b Controller for air conditioner c Maximum length of connection line: 500 m VRV VRV indoor unit VAM VAM heat reclaim ventilation unit Linked control with more than 2 groups NOTICE Group control connection is NOT allowed with EKVDX indoor units.
  • Page 96 Technical data Activate setting 17-8-02 to set the central zone link to ON. No further settings are required. Direct duct connection NOTICE Direct duct connection is NOT allowed with EKVDX indoor units. The line connections are the same as for the 1-group linked-control system. P1 P2 P1 P2 P1P2...
  • Page 97 Technical data EKVDX F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 EKVDX F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 P1 P2 a Outdoor unit b Controller c Central controller for all units VRV VRV indoor unit EKVDX EKVDX indoor unit VAM VAM heat reclaim ventilation unit...
  • Page 98 Technical data ▪ Up to 64 units, a combination of air conditioners and VAM units, can be connected to the F1 and F2 terminals. ▪ This system does NOT require group number setting for central control (auto- address system). The central control group number is automatically assigned if the adapter PCB (KRP2A51) or schedule timer (DST301B51) is connected.
  • Page 99 Technical data Example Setting the central control group number 2-05 to 1: Use the local setting on the controller to set the central control group number. Mode number: 00 Central control group number: 2-05 Zone control F1 F2 VAM 1 F1 F2 VAM 2 F1 F2...
  • Page 100 Technical data ▪ For the ventilation air flow setting, follow the procedure described in "All control" [  97]. ▪ For zone setting using the central controller, see the operation manual of the central controller. ▪ The central controller can be used to control individual units in the zone for ventilation.
  • Page 101 Technical data Mode Description position 17(27) L/H‑tap UH‑tap VAM350~2000J8VEB + EKVDX32~100A2VEB Service manual VRV system air conditioner ESIE22-07 – 2022.02 draft – 07/02/2022 15:12...
  • Page 104 ESIE22-07 2022.02 Verantwortung für Energie und Umwelt draft – 07/02/2022 15:12...

This manual is also suitable for:

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