Daikin Sky Air Advance RZA200D7Y1B Service Manual
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Daikin Sky Air Advance RZA200D7Y1B Service Manual

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Summary of Contents for Daikin Sky Air Advance RZA200D7Y1B

  • Page 1 Service manual Sky Air Advance-series RZA200D7Y1B RZA250D7Y1B...
  • 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 ESIE19-13 Document release April 2020 ESIE19-13A Document release May 2020 RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 4: Table Of Contents

    Table of Contents Table of Contents 1 General operation 2 Troubleshooting To access push buttons and 7-segment display......................To retrieve error codes and check error history ......................2.2.1 Via service monitoring tool ..........................2.2.2 Via the indoor unit remote controller BRC1H ....................2.2.3 Via the outdoor unit ............................
  • Page 5 Table of Contents Current sensor ................................65 3.3.1 Checking procedures ............................65 3.3.2 Repair procedures ............................66 Expansion valve................................68 3.4.1 Checking procedures ............................68 3.4.2 Repair procedures ............................70 Fan inverter PCB................................74 3.5.1 Checking procedures ............................74 3.5.2 Repair procedures ............................
  • Page 6 Table of Contents Field information report ..............................166 Service tools ..................................169 Field settings ................................... 170 6.8.1 Field settings: Outdoor unit ........................... 170 6.8.2 Field settings: Indoor unit ..........................179 Service manual RZA200+250D7Y1B Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 7: General Operation

    General operation 1 General operation The Sky-Air is typically used for cooling or heating in commercial applications. Some units also have settings to perform technical cooling. The medium which is used to transfer the heat from inside to outside or vice versa, is refrigerant. In case of the RZA200+250D7, the refrigerant which is used, is R32.
  • Page 8 General operation The list below is only for reference of compatible units. Always refer to Engineering Databook for compatibility. Duct FDA200+250 High cassette FCAHG-H Thin cassette 2x2 cassette FFA-A FCAG-B Duct (medium ESP) Ceiling suspended FBA-A FHA-A Ceiling mounted Wall mounted type 4‑way blow FUA-A FAA-A Duct (high ESP)

  • Page 9: Troubleshooting

    2.2.2 Via the indoor unit remote controller BRC1H INFORMATION 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. RZA200+250D7Y1B Service manual Sky Air Advance-series...
  • Page 10 Troubleshooting To retrieve the error code To indicate a system error, the controller displays on the messages zone of the home screen. Messages zone Middle button Error screen 1 Press the middle button to enter the main menu from the home screen. Result: An error screen is displayed.

  • Page 11: Via The Outdoor Unit

    Troubleshooting Action Image for reference Result Tap the settings icon. The Unit settings screen is displayed. Tap Errors and The Errors and warnings. warnings screen is displayed. Tap Error history. The Error history screen is displayed. 2.2.3 Via the outdoor unit Error code descriptions are accessible on “Mode 1: Monitor Mode”.

  • Page 12: Via The Wired Remote Control Brc1E

    Troubleshooting Mode Setting Description Mode 1: Monitor Last error code mode last error code last error code Please follow the procedure described below to access the regarding error code for outdoor unit forced stop and/or retry description: Action Result Display Make sure the 7-segment display indication is as during normal operation.
  • Page 13 Troubleshooting Operation lamp on the ON/OFF button Error message Warning Action Result Press. The error code appears on the screen. The content of the error/ warning is displayed. To Check the error history Action Result Go to the basic screen. Cool Set to °C...

  • Page 14: Via The Wireless Controller Brc7

    Troubleshooting Action Result Press. ▪ The RC Error History screen shows error history for all units in case of group control ▪ The Indoor Unit Error History screen shows error history of the selected indoor unit 2.2.5 Via the wireless controller BRC7 To retrieve the error code INSPECTION/TEST button Unit No.

  • Page 15: Via The Wired Remote Control Brc1D

    Troubleshooting UP button DOWN button 5 Continue to change until the matching buzzer sound** is generated. Result: **Possible buzzer sounds: Continuous buzzer; both digits match with the error code. 2 short beeps; left digit matches with the error code. 1 short beep; right digit matches with the error code. 6 Press the MODE button.

  • Page 16: To Activate Emergency Operation

    Troubleshooting TEST button Unit No. Temperature set button If operation stops due to a malfunction, the remote controller’s operation LED will blink and an error code will be displayed. The error code will stay available at inspection mode even after forced off operation or after the error is reset.
  • Page 17 Troubleshooting If… Then… Remote controller is defective Emergency operation can be used to go to cooling or heating. In emergency Indoor unit PCB is defective operation, the compressor is forced to Outdoor unit PCB is defective operate until the defective indoor or outdoor unit PCB is back online.

  • Page 18: Error Based Troubleshooting

    Troubleshooting COOL Cool HEAT Heat 3 Set the emergency DIP switch DS1‑2 on the outdoor unit PCB to the desired forced operating mode (Cooling or Heating). 4 Turn ON the power using the respective circuit breaker. 5 Turn ON the unit. Result: The system starts operating in emergency operation.

  • Page 19: E2-00 - Open Circuit On Earth Leakage Detection Core

    Troubleshooting To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform a check of the main PCB. See "3.9 Main PCB" [  95]. Possible cause: Faulty main PCB. 2 Check if the power supply is conform with the regulations. See "4.1 Electrical circuit" [  135].

  • Page 20: E3-00 - Outdoor Unit: Actuation Of High Pressure Switch

    Troubleshooting 2 Perform a check of the current sensor. See "3.3 Current sensor" [  65]. Possible cause: Faulty current sensor. 3 Perform a check of the main PCB. See "3.9 Main PCB" [  95]. Possible cause: Faulty main PCB. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 21: E4-00 - Abnormal Suction Pressure

    Troubleshooting Possible cause: Faulty outdoor unit fan motor. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 2.4.4 E4-00 – Abnormal suction pressure Trigger Effect Reset Refrigerant suction Unit will stop operating. Manual reset via user pressure is too low for interface.

  • Page 22: E5-00 - Outdoor Unit: Overheat Of Inverter Compressor Motor

    Troubleshooting 2.4.5 E5-00 – Outdoor unit: Overheat of inverter compressor motor Trigger Effect Reset Compressor overload is Unit will NOT stop Automatic reset if the unit detected. operating. runs without warning for 60 seconds. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check that all stop valves of the refrigerant circuit are open.

  • Page 23: E7-00 - Outdoor Unit: Malfunction Of Outdoor Unit Fan Motor

    Troubleshooting 2.4.6 E7-00 – Outdoor unit: Malfunction of outdoor unit fan motor Trigger Effect Reset Fan does NOT start Unit will NOT stop Automatic reset after a 15~30 seconds after ON operating. continuous run. signal. Unit will stop operating. Manual reset via user It can occur that the error interface.

  • Page 24: Cooling/Heating Switch Abnormality

    Troubleshooting Possible cause: Closed stop valve in the refrigerant circuit. 4 Check if the refrigerant circuit is clogged. See "4.2 Refrigerant circuit" [  137]. Possible cause: Clogged refrigerant circuit. 5 Check if the refrigerant circuit is correctly charged. See "4.2  Refrigerant circuit" [  137].

  • Page 25: F3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Temperature/Compressor Body Thermistor

    Troubleshooting 5 Check that all stop valves of the refrigerant circuit are open. See "4.2 Refrigerant circuit" [  137]. Possible cause: Closed stop valve in the refrigerant circuit. 6 Check if the refrigerant circuit is clogged. See "4.2 Refrigerant circuit" [  137]. Possible cause: Clogged refrigerant circuit. 7 Check if the refrigerant circuit is correctly charged.

  • Page 26: H3-00 - Outdoor Unit: Malfunction Of High Pressure Switch

    Troubleshooting Possible cause: Faulty expansion valve. 7 Perform a check of the main PCB. See "3.9 Main PCB" [  95]. Possible cause: Faulty main PCB. 8 Perform check refrigerant side thermistors. "3.15 Thermistors" [  128]. Possible cause: Faulty refrigerant side thermistor(s). INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 27: H9-00 - Outdoor Unit: Malfunction Of Outdoor Air Thermistor

    Troubleshooting To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check that all stop valves of the refrigerant circuit are open. See "4.2 Refrigerant circuit" [  137]. Possible cause: Closed stop valve in the refrigerant circuit. 2 Check if the refrigerant circuit is correctly charged.

  • Page 28: J3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Thermistor/Compressor Body Thermistor

    Troubleshooting 2.4.13 J3-00 – Outdoor unit: Malfunction of discharge pipe thermistor/compressor body thermistor Trigger Effect Reset Discharge pipe thermistor Unit will stop operating. Manual reset via user or compressor body interface. thermistor input is out of range. To solve the error code INFORMATION It is recommended to perform the checks in the listed order.

  • Page 29: J6-00 - Outdoor Unit: Malfunction Of Heat Exchanger Thermistor

    Troubleshooting 2.4.15 J6-00 – Outdoor unit: Malfunction of heat exchanger thermistor Trigger Effect Reset Outdoor heat exchanger Unit will stop operating. Manual reset via user thermistor input is out of interface. range. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform check heat...

  • Page 30: J8-00 - Malfunction Of Refrigerant Liquid Thermistor

    Troubleshooting 2.4.17 J8-00 – Malfunction of refrigerant liquid thermistor Trigger Effect Reset Refrigerant liquid Unit will stop operating. Automatic reset. thermistor detects an abnormal value (open or short circuit) To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform check refrigerant...

  • Page 31: L4-00 - Inverter Radiation Fin Overheat

    Troubleshooting Possible cause: Faulty outdoor unit fan motor. 7 Check if the power supply is conform with the regulations. See "4.1 Electrical circuit" [  135]. Possible cause: ▪ Faulty or disturbance of the power supply (imbalance >10%), ▪ Power drop, ▪ Short circuit. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 32: L5-00 - Outdoor Unit: Inverter Instantaneous Overcurrent

    Troubleshooting 6 Check ambient temperature. Check if outdoor unit location temperature differs drastically. 7 Check if there is discharge air by-pass on installation location. Possible cause: External noise. Check further on how to eliminate external factors. 8 Perform a check of the inverter PCB. See "3.7 Inverter PCB" [  81].

  • Page 33: L8-00 - Malfunction Triggered By A Thermal Protection In The Inverter Pcb

    Troubleshooting 8 Turn OFF the respective circuit breaker. DANGER: RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding, see "To check the rectifier voltage" [  135]. 9 Check that the thermal interface grease is applied properly on the (PCB or refrigerant piping) contact surface of the heat sink.

  • Page 34: L9-00 - Stall Prevention Time Lag

    Troubleshooting 2.4.22 L9-00 – Stall prevention time lag Trigger Effect Reset Outdoor unit inverter PCB Unit will stop operating. Manual reset via user detects compressor interface. overload at start‑up. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform a check of the compressor.

  • Page 35: P1-00 - Open Phase Power Supply Imbalance

    Troubleshooting To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform a check of the main PCB. See "3.9 Main PCB" [  95]. Possible cause: Faulty main PCB. 2 Perform a check of the inverter PCB. See "3.7 Inverter PCB" [  81].

  • Page 36: P4-00 - Outdoor Unit: Malfunction Of Radiating Fin Temperature Sensor

    Troubleshooting 2.4.25 P4-00 – Outdoor unit: Malfunction of radiating fin temperature sensor Trigger Effect Reset Radiating fin thermistor Unit will stop operating. Manual reset via user input is out of range. interface. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Perform a check of the inverter PCB.

  • Page 37: U1-00 - Malfunction By Reverse Phase/Open Phase

    Troubleshooting Possible cause: Faulty refrigerant side thermistor(s). 2 Check that all stop valves of the refrigerant circuit are open. See "4.2 Refrigerant circuit" [  137]. Possible cause: Closed stop valve in the refrigerant circuit. 3 Check if the refrigerant circuit is clogged. See "4.2 Refrigerant circuit" [  137].

  • Page 38: U2-00 - Outdoor Unit: Defect Of Power Supply Voltage

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 2.4.29 U2-00 – Outdoor unit: Defect of power supply voltage Trigger Effect Reset There is no zero‑cross Unit will stop operating. Power reset.

  • Page 39: U4-00 - Indoor/Outdoor Unit Communication Problem

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 2.4.30 U4-00 – Indoor/outdoor unit communication problem Trigger Effect Reset Communication failure Unit will stop operating. Automatic reset. between outdoor and indoor unit.

  • Page 40: Indoor Unit, Outdoor Unit Mismatching Problem

    Troubleshooting 2.4.31 UA-00 – Indoor unit, outdoor unit mismatching problem Trigger Effect Reset Signal transmission Unit will stop operating. Power reset via outdoor between outdoor and unit. indoor unit abnormality. Improper combination of outdoor and indoor unit. To solve the error code INFORMATION It is recommended to perform the checks in the listed order.

  • Page 41: Indoor Unit Related Error Codes

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 2.4.33 Indoor unit related error codes Error code Description A0-11 Detection of refrigerant leak A1-01 Indoor unit PCB abnormality A3-00 Drain water level system abnormality A6-00 Indoor unit fan motor abnormality AJ-00...

  • Page 42: Symptom Based Troubleshooting

    Troubleshooting 2.5 Symptom based troubleshooting 2.5.1 Operation does not start Check Detail When the operation lamp is off, there is ▪ Is the power supply breaker ON? a power failure. ▪ Do other electrical appliances work? Check the power supply. ▪...

  • Page 43: Operation Starts But The Unit Does Not Cool/Heat

    Troubleshooting Check Detail When the operation lamp blinks, there "2.4 Error based may be an error code, activating the troubleshooting" [  18]. protection device. Diagnose with remote controller indication. 2.5.3 Operation starts but the unit does not cool/heat Check Detail Check the electrical power supply. Is the rated voltage (±...

  • Page 44: Operating Noise And Vibrations

    Troubleshooting Check Detail Check the internal leakage of the 4‑way ▪ After compressor running valve 10  minutes, is there a temperature difference between the suction pipe and the discharge pipe? ▪ Is the pressure difference between the internal service port (small) and the gas pipe service port sufficient (>0.3MPa)? 2.5.4 Operating noise and vibrations...

  • Page 45: Abnormal High Pressure

    Troubleshooting 2.5.5 Abnormal high pressure In cooling mode Check item Detail Does the outdoor unit fan run Visual inspection normally? Is the outdoor unit heat exchanger Visual inspection clogged? Is there clogging before or after the ▪ Check if there is a temperature expansion valve (capillary)? difference before and after expansion valve (capillary).

  • Page 46: Abnormal Low Pressure

    Troubleshooting Check item Detail Is the refrigerant overcharged? Conduct refrigerant collection and vacuum drying, and then add proper amount refrigerant. 2.5.6 Abnormal low pressure Abnormally low pressure level is mostly caused by the evaporator side. The following contents are provided based on field checking of service engineer. Further, the number is listed in the order of degree of influence.

  • Page 47: Indoor Fan Starts Operating But The Compressor Does Not Operate

    Troubleshooting Check item Detail Is the outdoor unit installed under such Visual inspection conditions that short circuit easily occurs? Is there a shortage of refrigerant? Conduct refrigerant collection and vacuum drying, and then add proper amount refrigerant. 2.5.7 Indoor fan starts operating but the compressor does not operate Check Detail Check the power supply.

  • Page 48: Operation Starts And The Unit Stops Immediately

    Troubleshooting 2.5.8 Operation starts and the unit stops immediately Check Detail Check the power supply. ▪ Is the capacity of the safety breaker as specified? ▪ If the earth leakage breaker is too sensitive, then increase the set value of the earth leakage current of the breaker or replace the breaker.

  • Page 49: Unit Discharges White Mist

    Troubleshooting 2.5.10 Unit discharges white mist Check Detail Check installation conditions. ▪ Humid site. ▪ Dirty site. ▪ Oil mist. Check installation conditions. Dirty heat exchanger. Air filter. Dirty air filter. Fan motor. Defective fan motor. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A –...

  • Page 50: Components

    Components 3 Components 3.1 4-way valve 3.1.1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order. To perform a mechanical check of the 4-way valve Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.12 Plate work" [...
  • Page 51 Components 6 With the 4‑way valve connector connected to the PCB, measure the voltage on the 4‑way valve connection of the PCB. Result: The measured voltage MUST be 230 V AC. 7 De-activate Heating and activate Cooling operation via the user interface. 8 Measure the voltage on the 4‑way valve connection on the PCB.
  • Page 52 Components INFORMATION It is recommended to connect the service monitoring tool to the unit and verify the operation mode of the 4-way valve. 3 Check with a contact thermometer (or by touching) if the flow through the 4- way valve corresponds with the flow shown in the flow diagram. (See "6.3 Piping diagram" [  156]).

  • Page 53: Repair Procedures

    Components Is the flow correct? Action 4‑way valve is OK. Return to the troubleshooting of the specific error and continue with the next procedure. Perform the next step of this procedure. 9 Connect a manifold to one of the service ports of the refrigerant circuit and check the pressure (suction, discharge).
  • Page 54 Components To remove the 4-way valve body Prerequisite: Recuperate the refrigerant from the refrigerant circuit, see "4.2.2 Repair procedures" [  142]. 1 Remove the 4‑way valve coil from the 4‑way valve body, see "3.1.2  Repair procedures" [  53]. 2 Cut the 4‑way valve pipes using a pipe cutter. INFORMATION The cutting locations of the 4‑way valve pipes can differ due to the pipe cutter needing sufficient space to go around the pipes.
  • Page 55 Components 3 Wrap a wet rag around the 4‑way valve and solder the 4‑way valve pipes to the 4‑way valve. CAUTION Overheating the valve will damage or destroy it. 4 After soldering is done, stop the nitrogen supply after the component has cooled‑down.

  • Page 56: Compressor

    Components 4‑way valve body 2 Install and tighten the screw to fix the 4‑way valve coil. 3 Route the 4‑way valve coil harness towards the appropriate PCB. 4 Connect the 4‑way valve coil connector to the PCB. WARNING When reconnecting a connector to the PCB, do NOT apply force, as this may damage the connector or connector pins of the PCB.
  • Page 57 Components To perform a mechanical check of the compressor Prerequisite: First perform an auditive check of the compressor, see "3.2.1 Checking procedures" [  56]. Prerequisite: Stop the unit operation via the user interface. 1 Turn OFF the respective circuit breaker. 2 Check the compressor dampers and piping for any damage. Damper INFORMATION The compressor dampers may look different.
  • Page 58 Components Compressor wire terminals cover 3 Disconnect the Faston connectors from the compressor wire terminals U, V and W. INFORMATION Note the position of the Faston connectors on the compressor wire terminals to allow correct connection during installation. Faston connector CAUTION Before measuring the compressor motor windings resistance, measure the resistance of the multimeter probes by holding the probes against each other.
  • Page 59 Components Compressor motor winding Action measurements are correct? Continue with the next step. Replace the compressor, see "3.2.2 Repair procedures" [  61]. 5 Connect the Faston connectors to the compressor wire terminals U, V and W Faston connector 6 Install the compressor insulation. 7 Turn ON the power using the respective circuit breaker.
  • Page 60 Components DANGER: RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding, see "To check the rectifier voltage" [  135]. 2 Remove the cover of the compressor wire terminals. Compressor wire terminals cover 3 Disconnect the Faston connectors from the compressor wire terminals U, V and W.

  • Page 61: Repair Procedures

    Components ▪ U–ground, ▪ V–ground, ▪ W–ground. Compressor insulation measurements Action are correct? Compressor is OK. Return to troubleshooting of the specific error and continue with the next procedure. Replace the compressor, see "3.2.2 Repair procedures" [  61]. 3.2.2 Repair procedures To remove the compressor Prerequisite: Stop the unit operation via the user interface.
  • Page 62 Components INFORMATION Note the position of the Faston connectors on the compressor wire terminals to allow correct connection during installation. Faston connector 4 Cut the compressor pipes (below the soldered joint) using a pipe cutter. Compressor pipe 5 Remove the all the nuts and remove the compressor from the unit. Compressor Damper RZA200+250D7Y1B...
  • Page 63 Components 6 Remove the 3 dampers from the compressor. INFORMATION The compressor dampers may look different. 7 Remove the bushings and keep them for re-use. 8 To install the compressor, see "3.2.2 Repair procedures" [  61]. To install the compressor 1 Check the state of the dampers. Replace if worn. 2 Install the 3 dampers in the correct location on the unit.
  • Page 64 Components Compressor pipe CAUTION Overheating the compressor pipes (and the oil inside the compressor pipes) will damage or destroy the compressor. 6 After soldering is done, stop the nitrogen supply after the component has cooled‑down. 7 Connect the Faston connectors to the compressor wire terminals U, V and W Faston connector 8 Install the cover of the compressor wire terminals.

  • Page 65: Current Sensor

    Components Compressor wire terminals cover 9 Add refrigerant refrigerant circuit, "4.2.2  Repair procedures" [  142]. 10 Install the compressor insulation, see "3.2.2 Repair procedures" [  61]. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure.

  • Page 66: Repair Procedures

    Components Connector X101A 4 Check the wiring from pins 2 and 3 of connector X101A to the current sensor. 5 Disconnect the current sensor connector from the connector X101A on the main PCB and measure the resistance between pins 2 and 3 of the current sensor connector.
  • Page 67 Components Current sensor Connector X101A Tie wrap Screw connections 2 Remove the current sensor wiring harness from the tie wraps. 3 Loosen the screw connections to disconnect the power wiring. 4 Slide the current sensor on the power wiring and remove the current sensor. 5 To install the current sensor, see "3.3.2 Repair procedures" [...

  • Page 68: Expansion Valve

    Components Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. 3.4 Expansion valve 3.4.1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order. To perform a mechanical check of the expansion valve Prerequisite: Power OFF the unit for 3 minutes.
  • Page 69 Components Name Symbol Location (PCB) Connector Winding resistance Main Main X21A 46±3 Ω expansion valve Injection Main X22A 46±3 Ω expansion valve INFORMATION Below is an example of the resistance measurements in which the common wire is connected to pin 6 of the expansion valve motor connector. Connections may differ according to the type of expansion valve.

  • Page 70: Repair Procedures

    Components 5 Wait for the PCB to command the expansion valve to open (pulse output to expansion valve visible on service monitoring tool). INFORMATION If the PCB does NOT command the expansion valve to open (when it is supposed to), perform a check of the appropriate thermistors and pressure sensors (expansion valves are driven by superheat or subcool value calculated through the thermistors).
  • Page 71 Components Expansion valve motor 2 Pull the expansion valve motor to remove it from the expansion valve body. INFORMATION It may be needed to turn the expansion valve coil 1/8 turn counter clockwise to unlock it. Make sure to note the correct orientation (position) of the expansion valve coil before removal.
  • Page 72 Components Expansion valve body Expansion valve pipe 3 Remove the expansion valve body. 4 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 5 Heat the ends of the expansion valve pipes using an oxygen acetylene torch and remove the expansion valve pipe ends.
  • Page 73 Components Expansion valve body Expansion valve pipe 5 To install the expansion valve motor, see "3.4.2 Repair procedures" [  70]. 6 Add refrigerant refrigerant circuit, "4.2.2  Repair procedures" [  142]. To install the expansion valve motor with bracket 1 Install the expansion valve motor on the expansion valve body. INFORMATION The expansion valve motor is equipped with a metal bracket.

  • Page 74: Fan Inverter Pcb

    Components WARNING When reconnecting a connector to the PCB, do NOT apply force, as this may damage the connector or connector pins of the PCB. 4 Fix the expansion valve motor harness using new tie straps. 5 Install the insulation cap on the expansion valve motor (if applicable). Is the problem solved? Action No further actions required.
  • Page 75 Components Is the measured output voltage on the Action inverter PCB correct? Correct the wiring between the fan inverter PCB and the inverter PCB, see "4.1.2 Repair procedures" [  137]. Perform a check of the inverter PCB, "3.7.1 Checking procedures" [  81]. To check the HAP LED of the fan inverter PCB 1 First perform a power check of the fan inverter PCB, see "3.5.1 ...
  • Page 76 Components To check the wiring of the fan inverter PCB Prerequisite: First perform all earlier checks of the fan inverter PCB, see "3.5.1 Checking procedures" [  74]. Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Check that all wires are properly connected and that all connectors are fully plugged‑in.
  • Page 77 Components Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.12 Plate work" [  111]. 1 Set the multimeter to diode measurement. DANGER: RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding, see "To check the rectifier voltage" [  135].

  • Page 78: Repair Procedures

    Components 3.5.2 Repair procedures To remove the fan inverter PCB 1 As there is no separate spare part for the inverter PCB and fan inverter PCB, these need to be replaced as one complete assembly. See "3.7.2  Repair procedures" [  89]. To install the fan inverter PCB 1 As there is no separate spare part for the inverter PCB and fan inverter PCB, these need to be replaced as one complete assembly.
  • Page 79 Components 1 Recuperate the refrigerant from the refrigerant circuit, see "4.2.2  Repair procedures" [  142]. 2 Fill the refrigerant circuit with nitrogen until pressurized just below operating pressure of the high pressure switch. High pressure switch protection control Pressure High pressure switch closed High pressure switch open High pressure switch operating pressure High pressure switch reset pressure...

  • Page 80: Repair Procedures

    Components High pressure switch connector Then measurements are correct? High pressure switch is OK. Return to the troubleshooting of the specific error and continue with the next procedure. Replace the high pressure switch, see "3.6.2 Repair procedures" [  80]. 3.6.2 Repair procedures To remove the high pressure switch Prerequisite: Stop the unit operation via the user interface.

  • Page 81: Inverter Pcb

    Components 2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 3 Wrap a wet rag around the high pressure switch and solder the high pressure switch pipe to the high pressure switch. High pressure switch Faston connector High pressure switch pipe CAUTION...
  • Page 82 Components 1 Access the back side of the switch box, see "3.12 Plate work" [  111]. 2 Turn ON the power of the unit. 3 Measure the voltage between the following wires on the inverter PCB. Result: All measurements MUST be 400 V AC. ▪...
  • Page 83 Components HAP LED Does the HAP LED blink in regular Action intervals (1 second ON/1 second OFF)? Return to "3.7.1 Checking procedures" [  81] of the inverter PCB and continue with the next procedure. Replace the inverter PCB, see "3.7.2 Repair procedures" [  89]. To check if the correct spare part is installed Prerequisite: First perform all earlier checks of the inverter PCB, see "3.7.1 Checking procedures" [...
  • Page 84 Components 3 Check that no connectors or wires are damaged. 4 Check that the wiring corresponds with the wiring diagram, see "6.2  Wiring diagram" [  151]. INFORMATION Correct the wiring as needed. Is the problem solved? Action No further actions required. Return to "3.7.1 Checking procedures" [...
  • Page 85 Components Connector X3A Is the measured voltage approximately Action 560 V DC? Diode module and power module are OK. Perform a power transistor check of the inverter PCB, see "3.7.1 Checking procedures" [  81]. Perform a diode module and power module check, see "3.7.1 Checking procedures" [  81].
  • Page 86 Components Faston connector terminal U Faston connector terminal V Faston connector terminal W Faston connector terminal L1B Faston connector terminal L2B Faston connector terminal L3B Faston connector terminal P1 Faston connector terminal N31 Faston connector terminal P11 3 Check the diode module and the power module in reference with the tables below.
  • Page 87 Components Are the test results OK? Action Diode module and power module are OK. Perform a power transistor check of the inverter PCB, see "3.7.1 Checking procedures" [  81]. Replace the inverter PCB, see "3.7.2 Repair procedures" [  89]. To perform a power transistor check of the inverter PCB Prerequisite: First check the rectifier voltage of the inverter PCB, see "3.7.1 Checking procedures" [...
  • Page 88 Components Faston connector 4 Connect the Faston connectors to the Inverter Analyzer (SPP number 2238609). Inverter checker 2 LEDs for phase U Faston terminal U 2 LEDs for phase V Faston terminal V 2 LEDs for phase W Faston terminal W 5 Turn ON the power of the unit.

  • Page 89: Repair Procedures

    Components INFORMATION Use the notes made during disconnection to connect the compressor wiring to the correct wire terminals of the compressor. Are the test results OK? Action Power transistors are OK. Return to "3.7.1 Checking procedures" [  81]. Replace the inverter PCB, see "3.7.2 Repair procedures" [  89].
  • Page 90 Components 3 Disconnect the Faston connectors from the L1B, L2B and L3B terminals on the inverter PCB. 4 Disconnect all other Faston connectors from the inverter PCB. 5 Disconnect all remaining connectors from the inverter PCB. 6 Disconnect all connectors from the fan inverter PCB. INFORMATION As there is no separate spare part for the inverter PCB and fan inverter PCB, these need to be replaced as one complete assembly.

  • Page 91: Low Pressure Switch

    Components 7 Connect all connectors to the fan inverter PCB. 8 Install the bridge connector X4A on the fan inverter PCB. INFORMATION Use the wiring diagram and connection diagram for correct installation of the connectors, see "6.2 Wiring diagram" [  151]. WARNING When reconnecting a connector to the PCB, do NOT apply force, as this may damage the connector or connector pins of the PCB.

  • Page 92: Repair Procedures

    Components 4 Measure contacts between the pins 1‑2 of the low pressure switch connector. Result: The switch MUST be closed. 5 Vacuum until pressurized just below operating pressure of the low pressure switch. 6 Measure again contacts between the pins 1‑2 of the low pressure switch connector.
  • Page 93 Components Screw Bracket Clip 3 Disconnect the low pressure switch connector from the appropriate PCB. 4 Cut all tie straps that fix the low pressure switch harness. Low pressure switch Low pressure switch pipe 5 Cut the low pressure switch pipe using a pipe cutter. 6 Remove the low pressure switch from the unit.
  • Page 94 Components 2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 3 Wrap a wet rag around the low pressure switch and solder the low pressure switch pipe to the low pressure switch. Low pressure switch Low pressure switch pipe CAUTION Overheating the pressure switch will damage or destroy it.

  • Page 95: Main Pcb

    Components 10 Add refrigerant refrigerant circuit, "4.2.2  Repair procedures" [  142]. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. 3.9 Main PCB 3.9.1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order.
  • Page 96 Components Does the unit receive power? Action Correct the wiring from the main power supply terminal to the main PCB, see "3.9.2 Repair procedures" [  98]. Adjust the power supply to the unit, see "4.1.2 Repair procedures" [  137]. To check the HAP LED of the main PCB Prerequisite: First check the power supply to the main PCB, see "3.9.1 ...
  • Page 97 Components Is the correct spare part for the PCB Action installed? Return to "3.9.1 Checking procedures" [  95] of the main PCB and continue with the next procedure. Replace the main PCB, see "3.9.2 Repair procedures" [  98]. To check the wiring of the main PCB Prerequisite: First perform all earlier main PCB checks, see "3.9.1 ...

  • Page 98: Repair Procedures

    Components Fuse F1U Fuse F2U Fuse F3U Blown fuse on the main PCB? Action Replace the blown fuse, see "3.9.2 Repair procedures" [  98]. Return to "3.9.1 Checking procedures" [  95] of the main PCB and continue with the next procedure. Problem solved? After all checking procedures listed above have been performed: Is the problem solved? Action No further actions required.
  • Page 99 Components Bridge connector X1A Main PCB support Main PCB 2 Unplug the bridge connector X1A and keep it for reuse. 3 Carefully pull the main PCB and unlatch the main PCB supports one by one using a small pliers. 4 Remove the main PCB from the unit. 5 To install the main PCB, see "3.9.2 Repair procedures" [...
  • Page 100 Components WARNING When reconnecting a connector to the PCB, do NOT apply force, as this may damage the connector or connector pins of the PCB. Is the problem solved? Action No further actions required. Return to "3.9.1 Checking procedures" [  95] of the PCB and continue with the next procedure.

  • Page 101: Noise Filter Pcb

    Components Fuse F1U Fuse F2U Fuse F3U Is the problem solved? Action No further actions required. Return to "3.9.1 Checking procedures" [  95] of the PCB and continue with the next procedure. 3.10 Noise filter PCB 3.10.1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order. To perform a power check of the noise filter PCB Prerequisite: Stop the unit operation via the user interface.
  • Page 102 Components Is the measured voltage on the PCB Action correct? Return to "3.10.1 Checking procedures" [  101] of the PCB and continue with the next procedure. Continue with the next step. 5 Check the power supply to the unit, see "4.1.1 Checking procedures" [  135].
  • Page 103 Components Is the output voltage on the noise filter Action PCB correct? Return to "3.10.1 Checking procedures" [  101] of the noise filter PCB and continue with the next procedure. Replace the noise filter PCB, see "3.10.2 Repair procedures" [  105]. To check if the correct spare part is installed Prerequisite: First perform all earlier checks of the noise filter PCB, see "3.10.1 Checking procedures" [...
  • Page 104 Components 1 Check that all wires are properly connected and that all connectors are fully plugged‑in. 2 Check that no connectors or wires are damaged. 3 Check that the wiring corresponds with the wiring diagram, see "6.2  Wiring diagram" [  151]. INFORMATION Correct the wiring as needed.

  • Page 105: Repair Procedures

    Components Problem solved? After all checking procedures listed above have been performed: Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. 3.10.2 Repair procedures To correct the wiring from the main power supply terminal to the noise filter PCB Prerequisite: Stop the unit operation via the user interface.
  • Page 106 Components PCB support Noise filter PCB 6 To install the new noise filter PCB, see "3.10.2 Repair procedures" [  105]. To install the noise filter PCB 1 Install the noise filter PCB on its correct location. PCB support Noise filter PCB 2 Connect all Faston connectors to the noise filter PCB. Is the problem solved? Action No further actions required.

  • Page 107: Outdoor Unit Fan Motor

    Components Is the problem solved? Action Return to "3.10.1 Checking procedures" [  101] of the noise filter PCB and continue with the next procedure. 3.11 Outdoor unit fan motor 3.11.1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order. To perform a mechanical check of the propeller fan blade assembly Prerequisite: Stop the unit operation via the user interface.

  • Page 108: Repair Procedures

    Components 2 Turn ON the power of the unit. 3 Activate Cooling or Heating operation via the user interface. 4 Check the functioning of the outdoor unit fan. Outdoor unit fan … Action Rotates continuously (without DC fan motor assembly is OK. Return to interruption) the troubleshooting of the specific error and continue with the next procedure.
  • Page 109 Components Propeller fan blade assembly 3 Pull and remove the propeller fan blade assembly from the DC fan motor assembly. INFORMATION Use a pulley remover if the propeller cannot be removed manually. 4 To install the propeller fan blade assembly, see "3.11.2 ...
  • Page 110 Components 7 Remove the DC fan motor assembly from the unit. 8 To install the DC fan motor assembly, see "3.11.2 Repair procedures" [  108]. To install the DC fan motor assembly 1 Install the DC fan motor assembly in the correct location. 2 Fix the DC fan motor assembly to the unit by tightening the screws.

  • Page 111: Plate Work

    Components Propeller fan blade assembly Is the problem solved? Action No further actions required. Return to "3.11.1 Checking procedures" [  107] of the outdoor unit fan motor and continue with the next procedure. 3.12 Plate work 3.12.1 To open the outdoor unit DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING 1×...

  • Page 112: To Remove The Top Plate

    Components 3.12.2 To remove the top plate INFORMATION This procedure is just an example and may differ on some details for your actual unit. Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Loosen and remove the screws that fix the top plate.

  • Page 113: To Remove The Switch Box

    Components 1 Untwist the cord and remove the compressor sound insulation. a Compressor sound insulation 3.12.5 To remove the switch box Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.12 Plate work" [  111].
  • Page 114 Components 6 Remove all wires on the left hand side and upper side from the wire clips and leave them aside. 7 On the right hand side, remove all wires for which a connector was unplugged from the wire clips and push these wires through the hole to the back side of the mounting plate.
  • Page 115 Components Faston connector 10 Rotate the terminal plate upwards and remove the two screws from the heat sink and the screw from the service port. Terminal plate Screw (heat sink) Screw (service port) Heat sink 11 Remove the 2 screws that fix the switch box supporting plate to the unit. RZA200+250D7Y1B Service manual Sky Air Advance-series...

  • Page 116: To Install The Switch Box

    Components Screw Switch box supporting plate Switch box 12 Lift and remove (unhook from the switch box) the switch box supporting plate from the outdoor unit. 13 Slightly tilt the heat sink forward (±10°) to create space for the switch box removal.
  • Page 117 Components Thermal interface grease on heat sink 3 Install the switch box on the correct location in the outdoor unit. Take the following into account: ▪ Route the DC fan motor harness in front of the switch box to easily connect it later on.
  • Page 118 Components 6 Install and tighten the screw to fix the service port to the switch box mounting plate. Terminal plate Screw (heat sink) Screw (service port) Heat sink 7 Install and alternately (in two steps) tighten the two screws to fix the heat sink to the switch box.

  • Page 119: To Access The Back Side Of The Switch Box

    Components Fan motor connector X1A Wire clip (left side) Wire clip (upper side) Wire clip (right side) 11 Route all wires in the wire clips on the left side and upper side. 12 Connect all connectors to the main PCB. 13 Connect the fan motor connector X1A.
  • Page 120 Components Terminal plate Screw (heat sink) Screw (service port) Heat sink 4 Remove the 2 screws that fix the switch box supporting plate to the unit. Screw Switch box supporting plate Switch box 5 Lift and remove (unhook from the switch box) the switch box supporting plate from the outdoor unit.

  • Page 121: Reactor

    Components CAUTION Take care NOT to damage the wiring or cables when repositioning the siwth box. 3.13 Reactor 3.13.1 Checking procedures To perform an electrical check of the reactor Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Remove the required plate work, see "3.12 Plate work" [...

  • Page 122: Repair Procedures

    Components 3.13.2 Repair procedures To remove the reactor Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Remove the required plate work, see "3.12 Plate work" [  111]. 2 Remove the Faston connectors to disconnect the wires from the reactor. 3 Remove the 4 screws that fix the reactor to the switch box.
  • Page 123 Components To perform a mechanical check of the solenoid valve Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.12 Plate work" [  111]. 1 Verify that the screw is firmly fixing the coil to the valve body. 2 Check if any damage or burst is present.

  • Page 124: Repair Procedures

    Components Are the measured voltages correct? Action Perform a position check of the solenoid valve, see "3.14.1 Checking procedures" [  122]. Perform a check of the main PCB, see "3.9 Main PCB" [  95]. To perform an operation check of the solenoid valve Prerequisite: First perform an electrical check of the solenoid valve, see "3.14.1 Checking procedures" [  122].
  • Page 125 Components Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.12 Plate work" [  111]. Prerequisite: If needed, remove any parts or insulation to create more space for the removal. 1 Remove the screws that fix the solenoid valve to the bracket. Screw Solenoid valve coil Bracket...
  • Page 126 Components Solenoid valve body Pipe 3 Remove the solenoid valve body. 4 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. 5 Heat the end of the solenoid valve pipe using an oxygen acetylene torch and remove the solenoid valve pipe end.
  • Page 127 Components CAUTION Overheating the valve will damage or destroy it. 4 After soldering is done, stop the nitrogen supply after the component has cooled‑down. 5 To install the solenoid valve coil, see "3.14.2 Repair procedures" [  124]. 6 Add refrigerant refrigerant circuit, "4.2.2 ...

  • Page 128: Thermistors

    Components Is the problem solved? Action Return to "3.14.1 Checking procedures" [  122] of the solenoid valve and continue with the next procedure. 3.15 Thermistors 3.15.1 Refrigerant side thermistors Checking procedures INFORMATION It is recommended to perform the checks in the listed order. To perform a mechanical check of the specific thermistor Prerequisite: Stop the unit operation via the user interface.
  • Page 129 Components Name Symbol Location (PCB) Connector Type (pins) Air thermistor Main (O/U) X18A:1‑3 Discharge pipe Main (O/U) X29A:1‑2 thermistor Suction Main (O/U) X30A:1‑2 thermistor Heat Main (O/U) X30A:3‑4 exchanger thermistor Heat Main (O/U) X30A:5‑6 exchanger (middle) thermistor Refrigerant Main (O/U) X30A: 7‑8 liquid thermistor...
  • Page 130 Components T °C kΩ T °C kΩ T °C kΩ T °C kΩ –9 106.03 23.91 6.91 –8 100.41 22.85 6.65 –7 95.14 21.85 6.41 –6 90.17 20.90 6.65 –5 85.49 20.00 6.41 –4 81.08 19.14 6.18 –3 76.93 18.32 5.95 –2 73.01...
  • Page 131 Components 7 Check that the measured resistance value matches the resistance determined through the measured temperature (earlier step in the procedure). ▪ E.g. R1T thermistor: ▪ Measured temperature with contact thermometer: 23.1°C, ▪ Resistance value determined through temperature (using the table for type 1 thermistors): Resistance at 23°C: 21.85 kΩ, Resistance at 24°C: 20.90 kΩ,...
  • Page 132 Components Tie strap Insulation Thermistor wire Clip Thermistor Thermistor holder 3 Cut and remove the insulation. 4 Pull the clip that fixes the thermistor. 5 Remove the thermistor from the thermistor holder. 6 Cut all tie straps that fix the thermistor harness. 7 Disconnect the thermistor connector from the appropriate PCB and remove the thermistor.
  • Page 133 Components ▪ Remove all other thermistors wired to the connector from their thermistor holder, ▪ Disconnect the thermistor connector from the appropriate PCB, ▪ Remove the complete set of thermistors. 9 To install the thermistor, see "Repair procedures" [  131]. To install the thermistor 1 Pull the clip and install the thermistor in the specific thermistor holder.
  • Page 134 Components 3 When installing the complete set of thermistors wired to the same connector: ▪ Install all other thermistors wired to the connector in their thermistor holder, ▪ Route the thermistor harness of all thermistors towards the appropriate PCB, ▪ Connect the thermistor connector to the appropriate PCB. WARNING When reconnecting a connector to the PCB, do NOT apply force, as this may damage the connector or connector pins of the PCB.

  • Page 135: Third Party Components

    Third party components 4 Third party components 4.1 Electrical circuit 4.1.1 Checking procedures To check the power supply of the unit Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.12 Plate work" [  111].
  • Page 136 Third party components 2 Measure the voltage on the unplugged rectifier voltage check connector X3A. Result: The measured voltage MUST be below 10 V DC. Connector X3A DANGER: RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding. To check the wiring between the outdoor unit and the indoor unit 1 Check that all wires are properly connected and that all connectors are fully plugged‑in.

  • Page 137: Repair Procedures

    Third party components 4.1.2 Repair procedures To adjust the power supply 1 Make sure that the power source is in line with the requirements described in the databook. 2 Adjust the power supply within 50 Hz ± 3%. Is the problem solved? Action No further actions required.
  • Page 138 Third party components Liquid stop valve Gas stop valve 2 Check if the stop valves are completely open. The refrigerant circuit stop valves are Action open? Return to the troubleshooting of the specific error and continue with the next procedure. Open the stop valves of the refrigerant circuit, see "4.2.2 Repair...
  • Page 139 Third party components INFORMATION A bigger temperature drop before and after the expansion valve can be normal, however excessive ice is indicating a malfunction of the expansion valve or internal obstruction of the valve (dirt or ice build up in case of humidity in the system). Temperature drop found? Action Replace the clogged part, see...
  • Page 140 Third party components Cooling High pressure drooping control Operating frequency comes to the lowest level. High pressure gradually rises with increasing operating frequency. High Subcooling degree becomes pressure higher. (The temperature of liquid connection piping becomes lower.) (Low pressure is maintained at a certain level.) pressure Low pressure rises with lowering...
  • Page 141 Third party components Cooling The opening degree of the electronic Fan control, i.e., expansion valve comes larger. actually hunting to Electronic expansion valve maintain high pressure fully opens. on the cooling control with low outdoor air. Operating frequency comes to the lowest level. High pressure High pressure decreases...

  • Page 142: Repair Procedures

    Third party components 3 Measure the pressure of the refrigerant. The measured pressure converted into saturated temperature MUST be in line with the expected pressure / saturated temperature at current ambient temperature. 4 If the measured pressure is significantly higher (>5K), non‑condensables gasses are most likely present in the refrigerant.
  • Page 143 Third party components Liquid stop valve Gas stop valve 2 Completely open the stop valves by screwing the stop valve screw counterclockwise. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure.
  • Page 144 Third party components Service tool Remark Scale Read-out / 10 grams Manifold Compatible with the refrigerant to be recovered Flexible hoses Compatible with the refrigerant to be recovered Recovery cylinder Compatible with the refrigerant to be recovered Vacuum pump 2-stage, equipped with solenoid valve 2 Setup a vacuum line between recovery unit discharge and the recovery bottle.
  • Page 145 Third party components Liquid service port Gas service port Flexible hose Manifold Recovery unit Vacuum pump Scale Recovery cylinder Vacuum setup Internal service port 4 Activate vacuum mode via the field settings (see field settings in installation manual or installer reference guide). To make sure that refrigerant cycle is completely connected and there are no dead-zones because of closed expansion- or solenoid valves, entering the vacuum mode ensures that:...
  • Page 146 Third party components Repair information Refrigerant piping handling ▪ Make sure that the applied pressure is never higher than the unit design pressure indicated on the nameplate (PS). ▪ Work according to the F‑gas regulation and/or local regulations. ▪ Make sure the correct amount of refrigerant is charged after repair according to the F‑gas regulation label on the unit (factory + additional where required).

  • Page 147: External Factors

    Third party components 5 Check the manifold if vacuum is reached. Close the gas stop valve and stop forced cooling operation. Refrigerant piping repair ▪ Make sure to cover open pipe ends during repair so no dust or moisture can enter.
  • Page 148 Third party components Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. To check for an external power source 1 Check for the presence of an external power source. This might cause electrical interference (electrical noise disturbance).

  • Page 149: Maintenance

    Maintenance 5 Maintenance 5.1 To clean the outdoor unit heat exchanger 1 Straighten the hair fins. 2 Clear the outdoor unit heat exchanger from dust, leaves,… using a fin-comb or compressed air/N CAUTION Avoid bending or damaging the hair fins of the outdoor unit heat exchanger during the cleaning process.

  • Page 150: Technical Data

    Technical data 6 Technical data 6.1 Detailed information setting mode 6.1.1 Detailed information setting mode: Outdoor unit See the installer reference guide on business portal for more information. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 151: Wiring Diagram

    Technical data 6.2 Wiring diagram 6.2.1 Wiring diagram: Outdoor unit The wiring diagram is delivered with the unit, located at the inside of the service cover. (1) Connection diagram English Translation Connection diagram Connection diagram Only for *** Only for *** See note *** See note *** Outdoor...
  • Page 152 Technical data Refer to the wiring diagram sticker (on the back of the front plate) for how to use the BS1~BS3 and DS1+DS2 switches. When operating, do not short-circuit protective devices S1PH and S1PL. Refer to the combination table and the option manual for how to connect the wiring to X6A, X15A and X77A.
  • Page 153 Technical data R1T (A1P) Thermistor (air) Thermistor (discharge pipe) Thermistor (suction pipe) Thermistor (heat exchanger exit) Thermistor (heat exchanger branch) Thermistor (liquid pipe) Thermistor (M1C body) R24 (A4P) Resistor (current sensor) R300 (A3P) Resistor (current sensor) S1PH High pressure switch S1PL Low pressure switch SEG1~SEG3 (A1P)
  • Page 154 Technical data (1) Connection diagram 3N~, 50 Hz, 380 - 415 V OUTDOOR INDOOR (2) Layout Front Left See note 2 See note 3 See note 2 Back Position of compressor terminal 4D124870 RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 155: Wiring Diagram: Indoor Unit

    Technical data 6.2.2 Wiring diagram: Indoor unit INFORMATION See the service manual of the compatible indoor units for more information. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 156: Piping Diagram

    Technical data 6.3 Piping diagram 6.3.1 Piping diagram: Outdoor unit Service port (with 5/16" flare) Stop valve Filter Check valve Muffler Solenoid valve PCB cooling Capillary tube Electronic expansion valve 4‑way valve High pressure switch Low pressure switch Heat exchanger Compressor Distributor Accumulator...

  • Page 157: Piping Diagram: Indoor Unit

    Technical data 6.3.2 Piping diagram: Indoor unit INFORMATION See the service manual of the compatible indoor units for more information. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 158: Component Overview

    Technical data 6.4 Component overview 6.4.1 Component overview: Outdoor unit Fan motor Expanion valve (main) Y1E Current sensor Gas stop valve (with service port) Main PCB Refrigerant liquid thermistor R6T Suction thermistor R3T Compressor body thermistor R7T Expansion valve (injection) Y2E Compressor M1C Service port Liquid stop valve (with service port)
  • Page 159 Technical data Low pressure switch S1PL Muffler High pressure switch S1PH Heat exchanger (middle) thermistor R5T Reactor Air thermistor R1T Noise filter PCB Filter 4‑way valve Y2S Inverter PCB Solenoid valve Y3S Fan inverter PCB Heat exchanger RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A –...

  • Page 160: Component Overview: Indoor Unit

    Technical data 6.4.2 Component overview: Indoor unit INFORMATION See the service manual of the compatible indoor units for more information. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 161: Wiring Overview

    Technical data 6.5 Wiring overview BROKEN-OUT VIEW PARTITION PLATE (HIGH VOLTAGE) HOOK LOWER THE HOOK OF THE PARTITION MAKE SURE THE FAN MOTOR CABLE PLATE TO LET THE (M1F) LEAD WIRE IS FIXED TIGHT? AT THAT TIME, PASS THROUGH. AFTER THE LEAD WIRE CLAMP THE TIE WRAP AT MAX 10mm (M1F) IS PASSED RETURN THE HOOK.
  • Page 162 Technical data R2T (Tdi) STOPPER (LOW VOLTAGE) EXPANSION COIL VALVE BODY DETAIL V 2 POSITIONS SHIFT THE COIL ON THE EXPANSION VALVE BODY (2x) UNTIL IT HITS THE STOPPER (SEE FIGURE ABOVE). THEN ROTATE THE COIL UNTIL IT CLICKS INTO THE CORRECT PLACE (SEE FIGURE BELOW). R7T (Ti) (LOW VOLTAGE) DETAIL V2...
  • Page 163 Technical data S1PH S1PL (LOW VOLTAGE) S1PH (LOW VOLTAGE) (LOW VOLTAGE) S1PL R3T (Ts) (LOW VOLTAGE) (LOW VOLTAGE) (HIGH VOLTAGE) MAKE SURE THE WIRES GOES BETWEEN THE PIPE AND THE COMPRESSOR MANTLE SECTION K-K BUNDLE ALL EXCESSIVE WIRE R5T (Tm) (LOW VOLTAGE) R1T (Ta) (LOW VOLTAGE)
  • Page 164 Technical data R5T (Tm) (LOW VOLTAGE) DO NOT COVER THE BRAZED PART R1T (Ta) (LOW VOLTAGE) SEE DETAIL U R4T (Tb) (LOW VOLTAGE) BUNDLE EXCESSIVE DETAIL N WIRE HERE R4T (Tb) (LOW VOLTAGE) DETAIL F WRAP CUSHION AROUND R1T AND R5T LEAD WIRES R1T (Tm) R5T (Ta) (LOW VOLTAGE)
  • Page 165 Technical data Wiring Component name Thermistor Marking Component PCB connector Voltage Routing (views) symbol diameter color connector Air thermistor 5 mm None White X18A White J-L-N-P-U-AD Suction thermistor 6 mm Green White X30A White L-M-P Heat exchanger 7 mm F-J-L-N-P thermistor Heat exchanger 6 mm White J-L-N-P...

  • Page 166: Field Information Report

    Technical data 6.6 Field information report See next page. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...
  • Page 167 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 168 Application information Application (house, apartment, office,…): New project or reimbursement: Heat emitters (radiators / under floor heating / fan coils /…): Hydraulic layout (simple schematic): Unit / Installation information Model name: Serial number: Installation / commissioning date: Software version hydro PCB A1P Software version hydro PCB A5P Software version user interface: Software version outdoor PCB:...

  • Page 169: Service Tools

    Technical data 6.7 Service tools 1 For an overview of the available service tools, check the Business Portal: http://www.mydaikin.eu. 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 170: Field Settings

    Technical data 6.8 Field settings 6.8.1 Field settings: Outdoor unit To access mode 1 or 2 1 Check if the unit is in normal mode. If NOT in normal mode, push BS1 to return to normal mode. 7‑segment display indication state will be as shown: Result: 2 7‑segment display indications: Blinking...
  • Page 171 Technical data 4 Push BS3 one time; the value which is returned is the outdoor unit air sensor temperature. Result: Mode 1 setting 20 is addressed and selected, return value (e.g. 25°C) is monitored information (outdoor unit air sensor temperature). 5 To leave the monitoring function, push BS1 one time. To use mode 2 Mode 2 is used to set field settings of the outdoor unit and system.
  • Page 172 Technical data 5 To change the value of the setting, push BS2 till the required value appears on the 7‑segment display indication. When achieved, define the setting value by pushing BS3 1 time. To start operation according to the chosen setting, confirm again by pushing BS3.
  • Page 173 Technical data Mode 1: Field settings In mode 1 you can monitor the status of the system. This column shows the number of times you have to push the SET button (BS2) to access the field setting. Setting No° Setting item Indication of low noise Indication of demand operation Indication of oil return...
  • Page 174 Technical data Mode 2: Field settings In mode 2 you can make field settings to configure the system. Make sure to perform a power reset via the outdoor unit after changing the field settings. This column shows the number of times you have to push the SET button (BS2) to access the field setting. The bold content is the default setting.
  • Page 175 Technical data If capacity precedence is set in "Capacity precedence setting", the fan speed will be increased Time set with Time set with according to the load of air "Night-time low noise end setting" "Night-time low noise start setting" Operation sound conditioning when load is heavier.
  • Page 176 Technical data N° Item Display Content Low noise 2.03 Level 1, 22h00~6h00 setting (see Level 1, 22h00, 8hhh00 diagram below) Level 2, 22h00, 6h00 (low noise level, start and end Level 2, 22h00, 8hhh00 time of Level 2, 20h00~8h00 automatic low Level 3, 22h00, 8h00 noise during nighttime)
  • Page 177 Technical data Use of the optional PCB KRP58M51 enables the use of an external time clock. Same as with the automatic control, priority for capacity can be set. Priority for capacity will be activated by changing field setting 2.01-02 in combination with the closed contact on KRP58M51.
  • Page 178 Technical data DS1 setting Maximum power consumption Image 100% Demand 2 Power consumption limitation set to 40%. Demand 3 Forced thermostat OFF. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...

  • Page 179: Field Settings: Indoor Unit

    Technical data 6.8.2 Field settings: Indoor unit To retrieve the field settings Via the wired remote controller BRC1E INFORMATION Images are in English and for reference ONLY. For more details on the BRC1E please refer to the user manual. To access the field settings screen Action Result Go to the basic screen.
  • Page 180 Technical data Action Result Highlight the Second Code No. of Field Settings Unit No. Mode the First Code No. to be changed. Return Setting Select the desired Second Code Multiple identical mode number settings are available. In case of group total settings Action Result Highlight the Mode.
  • Page 181 Technical data Action Result Press. Setting details are determined and Field Settings screen is displayed. In case of multiple settings, repeat previous steps to change the settings Press twice. ▪ Backlight is lit. ▪ Once initialization is done, the basic screen is displayed. INFORMATION ▪...
  • Page 182 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 183 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 184 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 185 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 186 Technical data Action Image Result Tap Apply. Changes are applied to the field settings. Tap Apply. Changes to the field settings are confirmed. Tap Return to field Field settings are saved. settings. RZA200+250D7Y1B Service manual Sky Air Advance-series ESIE19-13A – 2020.05...
  • Page 187 Technical data Overview of field settings for indoor units The overview lists the field settings for the indoor unit FCAG-B. For more detailed field settings and field settings of other indoor units, see service manual of the indoor units. Bold content is default setting. Mode code Description function...
  • Page 188 Technical data Mode code Description function code Description selection 11(22) Optional (KRP1B…) output Compressor Option Operation Malfunction Compensation of temperature Floor sensor does not work around human body Higher priority on the air temperature Standard Highre priority on the floor temperature Compensation of floor −4°C...
  • Page 189 Technical data Mode code Description function code Description selection 14(24) The largest time interval for Dust About 1250 hr (dusty place) Collection Sign Display for "self About 2500 hr cleaning decoration panel" About 5000 hr (less dusty place) Display or non‑display of green Display both: lamp on the selfcleaning ▪...
  • Page 192 ESIE19-13A 2020.05 Verantwortung für Energie und Umwelt...

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