Daikin Sky Air Advance RZA200D7Y1B Service Manual Download Page 92

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Components

Service manual

250D7Y1B

Sky Air Advance-series

ESIE19-13A – 2020.05

Measure contacts between the pins 1‑2 of the low pressure switch connector.

Result:

The switch MUST be closed.

Vacuum until pressurized just below operating pressure of the low pressure
switch.

Measure again contacts between the pins 1‑2 of the low pressure switch
connector.

Result:

The switch MUST be open.

INFORMATION

If the low pressure switch was triggered open, it will stay open until the refrigerant
pressure rises above the reset pressure of the low pressure switch.

Fill the refrigerant circuit with nitrogen until pressurized just below reset
pressure of the low pressure switch.

Measure again contacts between the pins 1‑2 of the low pressure switch
connector.

Result:

The switch MUST be open.

Fill the refrigerant circuit with nitrogen until pressurized just above reset
pressure of the low pressure switch.

Measure again contacts between the pins 1‑2 of the low pressure switch
connector.

Result:

The switch MUST be closed.

Low pressure switch connector
measurements are correct?

Then

Yes

Low pressure switch is OK. Return to
the troubleshooting of the specific error
and continue with the next procedure.

Replace the low pressure switch, see

"3.8.2 Repair procedures"

[

92].

3.8.2 Repair procedures

To remove the low pressure switch

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].

Prerequisite:

Recuperate the refrigerant from the refrigerant circuit, see

"4.2.2 Repair procedures"

[

142].

If needed, remove any parts to create more space for the removal of the low
pressure switch.

Remove the screws and remove the brackets and clip from the low pressure
switch and pipe.

Summary of Contents for Sky Air Advance RZA200D7Y1B

Page 1: ...Service manual Sky Air Advance series RZA200D7Y1B RZA250D7Y1B ...

Page 2: ...he 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 Specifications are subject to change without prior notice Daikin Europe N V explicitly rejects any liability for any direct or indirect damage in the broadest sense arising from or related to the ...

Page 3: ...ersion log Service manual 3 RZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 Version log Version code Description Date ESIE19 13 Document release April 2020 ESIE19 13A Document release May 2020 ...

Page 4: ...9 2 4 16 J7 00 Outdoor unit Intermediate heat exchanger thermistor abnormality 29 2 4 17 J8 00 Malfunction of refrigerant liquid thermistor 30 2 4 18 L1 00 Outdoor unit Main PCB abnormality 30 2 4 19 L4 00 Inverter radiation fin overheat 31 2 4 20 L5 00 Outdoor unit Inverter instantaneous overcurrent 32 2 4 21 L8 00 Malfunction triggered by a thermal protection in the inverter PCB 33 2 4 22 L9 00 ...

Page 5: ...remove the compressor sound insulation 112 3 12 5 To remove the switch box 113 3 12 6 To install the switch box 116 3 12 7 To access the back side of the switch box 119 3 13 Reactor 121 3 13 1 Checking procedures 121 3 13 2 Repair procedures 122 3 14 Solenoid valve 122 3 14 1 Checking procedures 122 3 14 2 Repair procedures 124 3 15 Thermistors 128 3 15 1 Refrigerant side thermistors 128 4 Third p...

Page 6: ...ice manual 6 RZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 6 6 Field information report 166 6 7 Service tools 169 6 8 Field settings 170 6 8 1 Field settings Outdoor unit 170 6 8 2 Field settings Indoor unit 179 ...

Page 7: ...units c Expansion valve d Outdoor heat exchanger e 4 way valve f Stop valve In case of heating the compressor builds up pressure and hence the temperature of the refrigerant is increased The hot refrigerant is blown into the room by fan s which blow over heat exchanger s Colder refrigerant flows back to the outdoor unit where temperature is further decreased by expansion through an expansion valve...

Page 8: ...le units Always refer to Engineering Databook for compatibility Duct FDA200 250 High cassette FCAHG H Thin cassette FCAG B 2x2 cassette FFA A Duct medium ESP FBA A Ceiling suspended FHA A Ceiling mounted 4 way blow FUA A Wall mounted type FAA A Duct high ESP FDA125A Slim duct FDXM F Floor standing type FVA A Concealed floor standing type FNA A ...

Page 9: ...itoring tool it is possible to monitor not only error codes but also some common retries and stepping down controls Unit error Error code High pressure retry Low pressure retry Discharge pipe retry Inverter retry High pressure stepping down control Low pressure stepping down control Over current stepping down control Fin temperature stepping down control Compressor discharging stepping down contro...

Page 10: ...ain menu from the home screen Result An error screen is displayed 2 Press the middle button to return to the home screen Active error codes are also accessible through the Madoka Assistant for BRC1H The active error is shown on the home screen e g d f d Active error e Home screen f Error s details g Notifications screen 3 Tap the active error Result The detail s of the error s are shown on the Not...

Page 11: ...yed 3 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 The table below shows which setting shows the error codes that led to an outdoor unit forced stop When an error is generated the unit performs a forced off until the error is retrieved The current error code will be shown on the 7 segment display Yo...

Page 12: ...ff Press the RETURN BS3 Button Malfunction Retry item will appear on display Press the SET BS2 Button Detailed Malfunction Retry sub code will appear on display Press SET BS2 once again to return to main Malfunction Retry display Main Malfunction Retry item will appear on display Press the RETURN BS3 Button to return to Home Screen for Monitoring Mode Home Screen for Monitoring Mode will appear on...

Page 13: ...rror code appears on the screen The content of the error warning is displayed To Check the error history Action Result 1 Go to the basic screen Cool Set to 28 C 2 Press at least 4 seconds while the backlight of the screen is lit The Service Settings screen is displayed 3 Select Error History 4 Press The Error History screen is displayed 5 Select RC Error History or Indoor Unit Error History ...

Page 14: ...and hold INSPECTION TEST button for 5 seconds Result The unit indication is displayed on screen and Unit No is displayed as 0 blinking 2 Set the Unit No via UP DOWN buttons until a buzzer sound is generated from the indoor unit Result Possible buzzer sounds 3 short beeps conduct all items of the following procedure 1 short beep conduct steps 3 and 4 Continue the operation in step 4 until the buzze...

Page 15: ...Press UP DOWN buttons to change the right digit of the error code Result The right digit changes as indicated below UP button DOWN button 8 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 To c...

Page 16: ...d 3 Press TEST button Result Outdoor unit model code will be displayed 4 Press TEST button Result TEST operation will be displayed 5 Press TEST button for the last time to return to home screen Result The home screen appears To check the error history To check the malfunction history you will need to access Mode 40 on the BRC1D Mode 40 stands for malfunction history display 1 While in home screen ...

Page 17: ...be set to emergency while the power is OFF Ending conditions You can end the emergency operation by changing the emergency switch on the indoor unit and outdoor unit PCB back to normal while the power is OFF Below table explains what will happen when the emergency switch is set to emergency Changing the emergency switch on the Switches ON the Indoor unit Indoor unit fan Drain pump Outdoor unit Com...

Page 18: ...e remote controller The remote controller shows 88 while emergency operation is active on the indoor unit If a safety device is activated during emergency operation all actuators are turned OFF In cooling operation the unit runs for 20 minutes and then stops for 10 minutes in order to avoid freeze up of the indoor unit coil In heating operation defrost is activated for 3 minutes once every hour Em...

Page 19: ...terface 5 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 4135 6 Check that the thermal interface grease is applied properly on the PCB or refrigerant piping contact surface of the heat sink Adjust if needed Possible cause Thermal interface grease NOT applied properly on the hea...

Page 20: ...r 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 4137 Possible cause Closed stop valve in the refrigerant circuit 2 Perform a check of the high pressure switch See 3 6 High pressure switch 478 Possible cause Faulty high pressure switch 3 Perform a check of the main PCB See 3 9...

Page 21: ...nt circuit 3 Check if the refrigerant circuit is correctly charged See 4 2 Refrigerant circuit 4137 Possible cause Refrigerant shortage 4 Check for the presence of humidity in the refrigerant circuit See 4 2 Refrigerant circuit 4137 Possible cause Humidity in the refrigerant circuit 5 Check if the refrigerant circuit is clogged See 4 2 Refrigerant circuit 4137 Possible cause Clogged refrigerant ci...

Page 22: ...rform a check of the compressor See 3 2 Compressor 456 Possible cause Faulty compressor 5 Perform a check of all expansion valves See 3 4 Expansion valve 468 Possible cause Faulty expansion valve 6 Perform a check of the 4 way valve See 3 1 4 way valve 450 Possible cause Faulty 4 way valve 7 Perform a check of the main PCB See 3 9 Main PCB 495 Possible cause Faulty main PCB 8 Perform a check of th...

Page 23: ...e fan inverter PCB See 3 5 Fan inverter PCB 474 Possible cause Faulty fan inverter PCB INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 4 7 E9 00 Malfunction of electronic expansion valve Trigger Effect Reset No continuity of the expansion valve Unit will stop operating Manual reset via user interface Minimum expansion valve ope...

Page 24: ...bance 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 2 4 8 EA 00 Cooling Heating switch abnormality Trigger Effect Reset Room thermistor is NOT functioning within operation range Unit will NOT stop operating Automatic reset after a continuous operation for some time If th...

Page 25: ...eset Discharge pipe thermistor or compressor body thermistor detects a too high temperature Unit will NOT stop operating Automatic reset when temperature drops normal level If the error re occurs too soon unit will stop operating Manual reset via user interface 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 refrig...

Page 26: ...ing Manual reset via user interface To solve the error code INFORMATION It is recommended to perform the checks in the listed order 1 Perform a check of the high pressure switch See 3 6 High pressure switch 478 Possible cause Faulty high pressure switch 2 Perform a check of the main PCB See 3 9 Main PCB 495 Possible cause Faulty main PCB 3 Check if the power supply is conform with the regulations ...

Page 27: ...le cause Faulty main PCB 5 Perform a check of all expansion valves See 3 4 Expansion valve 468 Possible cause Faulty expansion valve INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 4 12 H9 00 Outdoor unit Malfunction of outdoor air thermistor Trigger Effect Reset Outdoor air thermistor input is out of range Unit will stop opera...

Page 28: ...le cause Faulty compressor body thermistor or connector fault 3 Perform a check of the main PCB See 3 9 Main PCB 495 Possible cause Faulty main PCB INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 4 14 J5 00 Malfunction of suction pipe thermistor Trigger Effect Reset Suction pipe thermistor input is out of range range Unit will ...

Page 29: ...aulty main PCB INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 4 16 J7 00 Outdoor unit Intermediate heat exchanger thermistor abnormality Trigger Effect Reset Heat exchanger middle thermistor detects an abnormal value open or short circuit Unit will stop operating Automatic reset To solve the error code INFORMATION It is recomm...

Page 30: ...ct the helpdesk 2 4 18 L1 00 Outdoor unit Main PCB abnormality Trigger Effect Reset Outdoor unit main PCB detects current voltage errors Unit will stop operating Manual reset via user interface Power reset 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 495 Possible cause Faulty main PCB 2 Perform a ...

Page 31: ... operation via the user interface 1 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 4135 2 Check that the thermal interface grease is applied properly on the PCB or refrigerant piping contact surface of the heat sink Adjust if needed Possible cause Thermal interface grease NOT a...

Page 32: ...e listed order 1 Check that all stop valves of the refrigerant circuit are open See 4 2 Refrigerant circuit 4137 Possible cause Closed stop valve in the refrigerant circuit 2 Check if the refrigerant circuit is clogged See 4 2 Refrigerant circuit 4137 Possible cause Clogged refrigerant circuit 3 Check if the refrigerant circuit is correctly charged See 4 2 Refrigerant circuit 4137 Possible cause R...

Page 33: ...rface 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 4137 Possible cause Closed stop valve in the refrigerant circuit 2 Check if the refrigerant circuit is clogged See 4 2 Refrigerant circuit 4137 Possible cause Clogged refrigerant circuit 3 Check if the ref...

Page 34: ... PCB 4 Check that all stop valves of the refrigerant circuit are open See 4 2 Refrigerant circuit 4137 Possible cause Closed stop valve in the refrigerant circuit 5 Check if the refrigerant circuit is clogged See 4 2 Refrigerant circuit 4137 Possible cause Clogged refrigerant circuit 6 Check if the refrigerant circuit is correctly charged See 4 2 Refrigerant circuit 4137 Possible cause Refrigerant...

Page 35: ...contact the helpdesk 2 4 24 P1 00 Open phase power supply imbalance Trigger Effect Reset Outdoor unit inverter PCB detects incorrect power supply Unit will stop operating Manual reset via user interface Automatic reset 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 495 Possible cause Faulty main PCB...

Page 36: ...formed and the problem is still present contact the helpdesk 2 4 26 PJ 00 Capacity setting mismatch Trigger Effect Reset Outdoor unit main PCB detects a defective capacity in EEPROM Unit will stop operating Manual reset via user interface Power supply reset To solve the error code 1 Perform a check of the main PCB See 3 9 Main PCB 495 Possible cause Faulty main PCB INFORMATION If all procedures li...

Page 37: ... Faulty compressor 7 Perform a check of all expansion valves See 3 4 Expansion valve 468 Possible cause Faulty expansion valve 8 Check for leaks in the refrigerant circuit Look for oil traces on the unit s Check the brazing points on the field piping Perform a pressure test see 4 2 Refrigerant circuit 4137 Possible cause Leak in the refrigerant circuit INFORMATION If all procedures listed above ha...

Page 38: ...d to perform the checks in the listed order 1 Check if the power supply is conform with the regulations See 4 1 Electrical circuit 4135 Possible cause Faulty or disturbance of the power supply imbalance 10 Power drop Short circuit 2 Perform a check of the compressor See 3 2 Compressor 456 Possible cause Faulty compressor 3 Perform a check of the outdoor unit fan motor See 3 11 Outdoor unit fan mot...

Page 39: ...ng between the outdoor unit and the indoor unit 3 Perform a check of the main PCB See 3 9 Main PCB 495 Possible cause Faulty main PCB 4 Perform a check of the outdoor unit fan motor See 3 11 Outdoor unit fan motor 4107 Possible cause Faulty outdoor unit fan motor 5 Check that standby electricity saving mode is OFF See installation manual Possible cause Standby electricity saving mode is ON while t...

Page 40: ...in PCB See 3 9 Main PCB 495 Possible cause Faulty main PCB 4 Check that standby electricity saving mode is OFF See installation manual Possible cause Standby electricity saving mode is ON while this mode is ONLY compatible with Split indoor units INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 4 32 UF 00 Reversed piping or bad ...

Page 41: ...refrigerant leak A1 01 Indoor unit PCB abnormality A3 00 Drain water level system abnormality A6 00 Indoor unit fan motor abnormality AJ 00 Capacity setting abnormality C1 00 Transmission error indoor and adaptor PCB C4 00 Indoor heat exchanger thermistor abnormality C5 00 Intermediate heat exchanger thermistor abnormality C9 00 Suction thermistor abnormality CC 00 Humidity sensor system abnormali...

Page 42: ...heck the connection of the outdoor air thermistor When the operation lamp blinks there may be an error code activating the protection device Diagnose with remote controller indication See 2 4 Error based troubleshooting 418 Check the operation circuit Is the thermal fuse blown Are wire size and wire connections OK Check fan motor Is the magnetic switch defective Is the overcurrent relay defective ...

Page 43: ...ation lamp blinks there may be a thermistor detection error code activating the protection device Check the resistance of all thermistors Check the connection of all thermistors Is there a malfunction in the room temperature thermistor or outdoor temperature thermistor Check for faulty operation of the electronic expansion valve Set the unit to cooling operation and check the temperature of the li...

Page 44: ...l or rubber or change the installation place Refrigerant piping is too short is the length within specified range Due to bad installation or general conditions there may be deformation of the unit Are all the screws installed and tightened properly Is all piping secured fixed and supported by inserting a cushion material where needed Install piping weights or correct by hand if any piping is in co...

Page 45: ...frigerant system Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Is the refrigerant overcharged Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant In heating mode Check item Detail Does the indoor unit fan run normally Visual inspection Is the indoor unit heat exchanger clogged Visual inspection Is the indoor unit install...

Page 46: ...n valve capillary Check if there is a temperature difference before and after expansion valve capillary Check if the main valve unit of expansion valve operates by noise vibration Is the check valve if applicable clogged Check if there is a temperature difference before and after check valve If YES the check valve is clogged Is there a shortage of refrigerant Conduct refrigerant collection and vac...

Page 47: ...ctric system Check the thermistor Connection witch PCB Output Check PCB s HAP LED s if applicable if green led on the control PCB is not blinking then the microprocessor is not working if the green led on the main PCB is not blinking then the microprocessor is not working if first green LED on the service monitor PCB is not blinking then the microprocessor is not working Check the magnetic switch ...

Page 48: ... the fan motor Check the magnetic switch Check the overcurrent relay Check the four way valve coil Is there a short circuit Is the four way valve coil broken Check the outdoor PCB Is there a short circuit Is the outdoor PCB broken Check the heat exchanger Soiled heat exchanger obstruction Check the airflow Soiled air filter obstruction installation space 2 5 9 Operation stops unit cannot start for...

Page 49: ...y Air Advance series ESIE19 13A 2020 05 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 ...

Page 50: ...dures 453 To perform an electrical check of the 4 way valve Prerequisite First perform a mechanical check of the 4 way valve see 3 1 1 Checking procedures 450 1 Unplug the 4 way valve connector from the appropriate PCB 2 Measure the resistance of the 4 way valve coil between the pins of the 4 way valve connector Result The measured value must be 1 2 kΩ 10 Is the measured value correct Action Yes C...

Page 51: ...ture range of the operation modes 9 Connect the 4 way valve connector to the appropriate PCB 10 Turn ON the power using the respective circuit breaker 11 With the unit operating connect the service monitoring tool to the unit and check whether the unit is operating in Heating or Cooling mode 12 With the 4 way valve connector connected to the PCB measure the voltage on the 4 way valve connection of...

Page 52: ...ation via the user interface 6 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 4156 Is the flow correct Action Yes 4 way valve is OK Return to the troubleshooting of the specific error and continue with the next procedure No Replace the body of the 4 way valve see 3 1 2 Repair procedures ...

Page 53: ...n the refrigerant circuit Perform a pressure test of the refrigerant circuit see 4 2 1 Checking procedures 4137 3 1 2 Repair procedures To remove the 4 way valve coil 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 4111 Prerequisite If needed remove any parts to create m...

Page 54: ...o be replaced during installation of the 4 way valve body a b a a 4 way valve pipe b 4 way valve 3 Remove the 4 way valve 4 Keep the putty if installed and the insulation if installed for re use 5 Supply nitrogen to the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 6 Heat the ends of the 4 way valve pipes using an oxygen acetylene torch and remove the expansion valve pipe ends...

Page 55: ...he nitrogen supply after the component has cooled down a b a a 4 way valve pipe b 4 way valve 5 Install the putty if available and the insulation if available in their original location 6 Install the 4 way valve coil on the 4 way valve body see 3 1 2 Repair procedures 453 7 Add refrigerant to the refrigerant circuit see 4 2 2 Repair procedures 4142 To install the 4 way valve coil 1 Install the 4 w...

Page 56: ...mmended to perform the checks in the listed order To perform an auditive check of the compressor 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 4111 1 Open the compressor insulation 2 Turn ON the power using the respective circuit breaker 3 Start the unit operation via ...

Page 57: ...e a a 1 Damper INFORMATION The compressor dampers may look different Compressor dampers and piping are in a good condition Action Yes Perform an electrical check of the compressor see 3 2 1 Checking procedures 456 No Replace the compressor see 3 2 2 Repair procedures 461 To perform an electrical check of the compressor 1 First perform a mechanical check of the compressor see 3 2 1 Checking procedu...

Page 58: ... wire terminals to allow correct connection during installation a a a a Faston connector CAUTION Before measuring the compressor motor windings resistance measure the resistance of the multimeter probes by holding the probes against each other If the measured resistance is NOT 0 Ώ this value MUST be substracted from the measured winding resistance 4 Measure the resistance between the compressor mo...

Page 59: ...er voltages All measurements MUST be the same Inverter voltage measurements are correct Action Yes Continue with the next step No Replace the inverter PCB see 3 7 Inverter PCB 481 10 Measure the current in each phase U V V W and U W All measurements MUST be the same Compressor motor winding current measurements are correct Action Yes Perform an insulation check of the compressor see 3 2 1 Checking...

Page 60: ...r wire terminals a a 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 a a a a Faston connector 4 Set the Megger voltage to 500 V DC or 1000 V DC 5 Measure the insulation resistance between the followin...

Page 61: ...quisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 12 Plate work 4111 Prerequisite Remove the compressor insulation Prerequisite Recuperate the refrigerant from the refrigerant circuit see 4 2 2 Repair procedures 4142 1 If needed remove any parts to create more space for the removal of the compressor DANGER RISK OF ELECTROCUTION Confirm the rectifier ...

Page 62: ... Faston connectors on the compressor wire terminals to allow correct connection during installation a a a a Faston connector 4 Cut the compressor pipes below the soldered joint using a pipe cutter a a a Compressor pipe 5 Remove the all the nuts and remove the compressor from the unit a a b c c c a a Nut b Compressor c Damper ...

Page 63: ...rs Replace if worn 2 Install the 3 dampers in the correct location on the unit a a b c c c a a Nut b Compressor c Damper INFORMATION The compressor dampers may look different 3 Remove the caps from the compression pipe and suction pipe CAUTION The oil in the compressor is hygroscopic Therefore remove the caps from the compressor pipes as late as possible 4 Supply nitrogen to the refrigerant circui...

Page 64: ... 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 a a a a Faston connector 8 Install the cover of the compressor wire terminals ...

Page 65: ... to the troubleshooting of the specific error and continue with the next procedure 3 3 Current sensor 3 3 1 Checking procedures To perform an electrical check of the current sensor 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 4111 2 Locate the current sensor connector on the mai...

Page 66: ...sult The measured value MUST be 45 50 Ω Is the measured resistance correct Action Yes Return to the troubleshooting of the specific error and continue with the next procedure No Replace the current sensor see 3 3 2 Repair procedures 466 3 3 2 Repair procedures To remove the current sensor Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit break...

Page 67: ...or on the power wiring and remove the current sensor 5 To install the current sensor see 3 3 2 Repair procedures 466 To install the current sensor 1 Slide the current sensor on the power wiring and install the current sensor in place a b c c c d a Current sensor b Connector X101A c Tie wrap d Screw connections 2 Install the power wiring in the connections and fasten the screws 3 Route the current ...

Page 68: ...pansion valve coil from the expansion valve body see 3 4 2 Repair procedures 470 INFORMATION After the check remove the magnet from the expansion valve body and install the expansion valve coil on the expansion valve body Make sure that the expansion valve coil is firmly slid onto the expansion valve body 2 Slide the expansion valve magnet over the expansion valve body and gently rotate the magnet...

Page 69: ...form an operation check of the expansion valve see 3 4 1 Checking procedures 468 No Replace the expansion valve coil 3 4 2 Repair procedures 470 To perform an operation check of the expansion valve Prerequisite First perform an electrical check of the expansion valve see 3 4 1 Checking procedures 468 1 Turn ON the power of the unit INFORMATION When power is switched ON PCB checks all expansion val...

Page 70: ... between switching ranges The best way to check is to feel the movement of the valve by touching rather than trying to measure the driving voltage 7 Check if the expansion valve is open Check with a contact thermometer or by touching if refrigerant flows through the expansion valve Is the expansion valve open Action Yes Component is OK Return to the troubleshooting of the specific error and contin...

Page 71: ...ps that fix the expansion valve motor harness 4 Disconnect the expansion valve motor connector X21A for main expansion valve Y1E and X22A for injection expansion valveY2E from the main PCB 5 To install the expansion valve motor see 3 4 2 Repair procedures 470 To remove the expansion valve body Prerequisite Recuperate the refrigerant from the refrigerant circuit see 4 2 2 Repair procedures 4142 Pre...

Page 72: ...top the nitrogen supply when the piping has cooled down 7 To install the expansion valve body see 3 4 2 Repair procedures 470 To install the expansion valve body 1 Install the expansion valve body in the correct location and correctly oriented 2 Supply nitrogen to the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 3 Wrap a wet rag around the expansion valve body and solder the ...

Page 73: ... 1 Install the expansion valve motor on the expansion valve body INFORMATION The expansion valve motor is equipped with a metal bracket Fit the nipples of the metal bracket into the notches of the expansion valve body CAUTION Make sure to install the expansion valve motor in the correct position orientation b c c d e a a Expansion valve motor b Metal bracket c Nipple d Notch e Expanion valve body ...

Page 74: ...d to perform the checks in the listed order To perform a power check of the fan inverter PCB 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 4111 Prerequisite Access the back side of the switch box see 3 12 Plate work 4111 1 Turn ON the power of the unit 2 Measure the vo...

Page 75: ... approximately 1 Hz Action Yes Return to 3 5 1 Checking procedures 474 of the fan inverter PCB and continue with the next procedure No Replace the fan inverter PCB see 3 5 2 Repair procedures 478 To check if the correct spare part is installed Prerequisite First perform all earlier checks of the fan inverter PCB see 3 5 1 Checking procedures 474 1 Visit your local spare parts webbank 2 Enter the m...

Page 76: ... INFORMATION Correct the wiring as needed Is the problem solved Action Yes No further actions required No Return to 3 5 1 Checking procedures 474 of the fan inverter PCB and continue with the next procedure To check the fuse of the fan inverter PCB Prerequisite First perform all earlier checks of the fan inverter PCB see 3 5 1 Checking procedures 474 1 Measure the continuity of the fuse If no cont...

Page 77: ... d Connector X1A pin U e Connector X1A pin V f Connector X1A pin W VDC Com Ref VDC Com Ref P1 X1A pin U O L N1 X1A pin V 0 45 P1 X1A pin V O L N1 X1A pin W 0 45 P1 X1A pin W O L X1A pin U N1 O L X1A pin U P1 0 45 X1A pin V N1 O L X1A pin V P1 0 45 X1A pin W N1 O L X1A pin W P1 0 45 P1 N1 O L N1 X1A pin U 0 45 N1 P1 0 75 Are the test results OK Action Yes Power transistors are OK Return to 3 5 1 Ch...

Page 78: ...r PCB on its correct location 4 Latch the PCB supports using a small pair of pliers to fix the PCB 5 Install and tighten the 2 screws to fix the fan inverter PCB to the heat sink plate a b b a d c a a a Connector b Screw c Connector X1A d Connector X4A 6 Connect all connectors to the fan inverter PCB 7 Reinstall connector X4A which you recuperated from the removed PCB Is the problem solved Action ...

Page 79: ...Wiring diagram 4151 4 Measure the resistance between the Faston connections of the high pressure switch Result The switch MUST be closed 5 Fill the refrigerant circuit with nitrogen until pressurized just above operating pressure of the high pressure switch 6 Measure the resistance between the Faston connections of the high pressure switch Result The switch MUST be open INFORMATION If the high pre...

Page 80: ...frigerant circuit see 4 2 2 Repair procedures 4142 1 If needed remove any parts to create more space for the removal of the high pressure switch 2 Disconnect the Faston connectors from the high pressure switch a c b b a High pressure switch b Faston connector c High pressure switch pipe 3 Cut the high pressure switch pipe using a pipe cutter 4 Remove the high pressure switch from the unit 5 Supply...

Page 81: ...trogen supply after the component has cooled down 5 Connect the Faston connectors to the high pressure switch 6 Add refrigerant to the refrigerant circuit see 4 2 2 Repair procedures 4142 Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 3 7 Inverter PCB 3 7 1 Checking procedures INFORMATION It i...

Page 82: ...d continue with the next procedure No Continue with the next step 4 Measure the output voltage between the following wires on the noise filter PCB Result All measurements MUST be 400 V AC L1B L2B L1B L3B L2B L3B Is the measured output voltage on the noise filter PCB correct Action Yes Correct the wiring between the inverter PCB and the noise filter PCB see 4 1 2 Repair procedures 4137 No Perform a...

Page 83: ...stalled spare part number corresponds with the spare part number indicated in the webbank Is the correct spare part for the inverter PCB installed Action Yes Return to 3 7 1 Checking procedures 481 of the inverter PCB and continue with the next procedure No Replace the inverter PCB see 3 7 2 Repair procedures 489 To check the wiring of the inverter PCB Prerequisite First perform all earlier checks...

Page 84: ...CB see 3 7 1 Checking procedures 481 1 Measure the continuity of the fuse If no continuity is measured the fuse has blown a a Fuse Any blown fuses on the inverter PCB Action Yes Replace the inverter PCB see 3 7 2 Repair procedures 489 No Return to 3 7 1 Checking procedures 481 of the inverter PCB and continue with the next procedure To check the rectifier voltage of the inverter PCB Prerequisite F...

Page 85: ...r module check see 3 7 1 Checking procedures 481 To perform a diode module and power module check Prerequisite First check the rectifier voltage of the inverter PCB see 3 7 1 Checking procedures 481 Prerequisite Stop the unit operation via the user interface 1 Turn OFF the respective circuit breaker DANGER RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding see T...

Page 86: ...nnector terminal N31 i Faston connector terminal P11 3 Check the diode module and the power module in reference with the tables below Diode module check VDC Com Ref VDC Com Ref P1 L1B O L N31 L1B 0 50 P1 L2B O L N31 L2B 0 50 P1 L3B O L N31 L3B 0 50 L1B P1 0 50 L1B N31 O L L2B P1 0 50 L2B N31 O L L3B P1 0 50 L3B N31 O L N31 P1 0 90 P1 N31 O L Power module check VDC Com Ref VDC Com Ref P11 U O L N31...

Page 87: ...ter PCB see 3 7 1 Checking procedures 481 Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker 1 Open the compressor insulation DANGER RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding see To check the rectifier voltage 4135 2 Remove the cover of the compressor wire terminals a a Compressor wire termin...

Page 88: ...ecker module blink then it means that the transistors on the inverter PCB switch correctly 7 To exit the power transistor check mode set 2 18 1 Result 2 LEDs on inverter checker module for V phase will indicate the discharge status of the DC voltage 8 Wait until the LEDs are OFF before disconnecting U V and W connections from the inverter checker 9 Turn OFF the unit via the circuit breaker DANGER ...

Page 89: ...Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 3 7 2 Repair procedures To remove the inverter PCB 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 4111 1 Remove the s...

Page 90: ...ws 9 Remove the inverter PCB and fan inverter PCB assy from the switch box 10 To install the inverter PCB see 3 7 2 Repair procedures 489 To install the 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 1 Install the inverter PCB and fan inverter PCB assy in the correct location e d f b a c g h i...

Page 91: ... pressure switch 3 8 1 Checking procedures To perform an electrical check of the low pressure switch 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 4111 1 Recuperate the refrigerant from the refrigerant circuit see 4 2 2 Repair procedures 4142 2 Connect a vacuum pump to...

Page 92: ...l the refrigerant circuit with nitrogen until pressurized just above reset pressure of the low pressure switch 10 Measure again contacts between the pins 1 2 of the low pressure switch connector Result The switch MUST be closed Low pressure switch connector measurements are correct Then Yes Low pressure switch is OK Return to the troubleshooting of the specific error and continue with the next pro...

Page 93: ... pressure switch pipe using a pipe cutter 6 Remove the low pressure switch from the unit 7 Supply nitrogen to the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 8 Heat the end of the low pressure switch pipe using an oxygen acetylene torch and remove the low pressure switch pipe end 9 Stop the nitrogen supply when the piping has cooled down 10 To install the low pressure switch...

Page 94: ... pressure switch b Low pressure switch pipe CAUTION Overheating the pressure switch will damage or destroy it 4 After soldering is done stop the nitrogen supply after the component has cooled down 5 Install the brackets and clip on the low pressure switch and pipe 6 Install and tighten the screws b b a a c a Screw b Bracket c Clip 7 Route the low pressure switch harness towards the appropriate PCB...

Page 95: ...r To perform a power check of the main PCB 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 4111 2 Turn ON the power of the unit 3 Measure the voltage between pin 1 3 on connector X801A on the main PCB Result The measured voltage MUST be 230 V AC 10 a a Connector X801A Is the measur...

Page 96: ...the main PCB a a HAP LED Does the HAP LED blink in regular intervals 1 second ON 1 second OFF Action Yes Return to 3 9 1 Checking procedures 495 of the main PCB and continue with the next procedure No Replace the main PCB see 3 9 2 Repair procedures 498 To check if the correct spare part is installed Prerequisite First perform all earlier main PCB checks see 3 9 1 Checking procedures 495 1 Visit y...

Page 97: ...rerequisite Turn OFF the respective circuit breaker 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 4151 INFORMATION Correct the wiring as needed Is the problem solved Action Yes No further actions required No Return to 3 9 1 ...

Page 98: ...from the main power supply terminal to the main PCB 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 4111 2 Make sure that all wires are firmly and correctly connected see 6 2 Wiring diagram 4151 3 Check the continuity of all wires 4 Replace any damaged or broken wires Is the proble...

Page 99: ...B 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 498 To install the main PCB 1 Install the main PCB on its mounting plate in the correct location 2 Connect all connectors to the main PCB b b b b b b b b c a a Bridge connector X1A b Main PCB support c Main PCB INFORMATION Use the wiring diagram and connection diagra...

Page 100: ...main PCB 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 4111 1 Remove the fuse from the PCB a b c a Fuse F1U b Fuse F2U c Fuse F3U 2 To install a fuse on the main PCB see 3 9 2 Repair procedures 498 To install a fuse on the main PCB WARNING For continued protection agai...

Page 101: ...the listed order To perform a power check of the noise filter PCB 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 4111 1 Access the back side of the switch box see 3 12 Plate work 4111 2 Turn ON the power of the unit 3 Measure the voltage between the phases L1A L2A L3A o...

Page 102: ...e 4 1 1 Checking procedures 4135 Does the unit receive power Action Yes Correct the wiring from the main power supply terminal to the noise filter PCB see 3 10 2 Repair procedures 4105 No Adjust the power supply to the unit see 4 1 2 Repair procedures 4137 To perform an electrical check of the noise filter PCB Prerequisite First check the power supply to the noise filter PCB see 3 10 1 Checking pr...

Page 103: ...es 4101 1 Visit your local spare parts webbank 2 Enter the model name of your unit and check if the installed spare part number corresponds with the spare part number indicated in the webbank Is the correct spare part for the noise filter PCB installed Action Yes Return to 3 10 1 Checking procedures 4101 of the noise filter PCB and continue with the next procedure No Replace the noise filter PCB s...

Page 104: ... actions required No Return to 3 10 1 Checking procedures 4101 of the noise filter PCB and continue with the next procedure To check the fuses of the noise filter PCB Prerequisite First perform all earlier checks of the noise filter PCB see 3 10 1 Checking procedures 4101 1 Measure the continuity of the fuse If no continuity is measured the fuse has blown a b a Fuse F101U b Fuse F102U Blown fuse o...

Page 105: ...e sure that all wires are firmly and correctly connected see 6 2 Wiring diagram 4151 3 Check the continuity of all wires 4 Replace any damaged or broken wires Is the problem solved Action Yes No further actions required No Return to 3 10 1 Checking procedures 4101 of the noise filter PCB and continue with the next procedure To remove the noise filter PCB Prerequisite Stop the unit operation via th...

Page 106: ...ter PCB 6 To install the new noise filter PCB see 3 10 2 Repair procedures 4105 To install the noise filter PCB 1 Install the noise filter PCB on its correct location a a a a b a a a PCB support b Noise filter PCB 2 Connect all Faston connectors to the noise filter PCB Is the problem solved Action Yes No further actions required ...

Page 107: ...ropeller fan blade assembly for damage deformations and cracks Is the propeller fan blade assembly damaged Action Yes Replace the propeller fan blade assembly see 3 11 2 Repair procedures 4108 No Perform a mechanical check of the DC fan motor assembly see 3 11 1 Checking procedures 4107 To perform a mechanical check of the DC fan motor assembly Prerequisite First perform a mechanical check of the ...

Page 108: ...ing resistance values above are given for reference You should NOT be reading a value in kΩ or a short circuit Make sure that the propeller fan blade does NOT rotate as this could affect resistance measurements 9 Measure the insulation resistance for the motor terminals Measurements between each phase and ground must be 1 MΩ Are the measured resistance values correct Action Yes Perform a check of ...

Page 109: ...e DC fan motor assembly 1 Remove the propeller fan blade assembly from the DC fan motor assembly see 3 11 2 Repair procedures 4108 b c a b b d d e g f f a Connector X1A b Tie strap c DC fan motor harness d Harness retainer e Opening in partition plate f Screw g DC fan motor assy 2 Disconnect the DC fan motor connector X1A 3 Cut the tie straps that fix the DC fan motor harness 4 Slightly bend the h...

Page 110: ...harness through the opening in the partition plate 4 Route the DC fan motor harness through the harness retainers and bend the harness retainers to attach the DC fan motor harness 5 Install new tie straps to fix the DC fan motor harness CAUTION Tie up the excessive DC fan motor harness using the tie straps to avoid the harness from being cut by the propeller fan blade 6 Connect the DC fan motor co...

Page 111: ...r fan blade assembly Is the problem solved Action Yes No further actions required No Return to 3 11 1 Checking procedures 4107 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 3 2 4 1 PH2 8mm ...

Page 112: ...op plate a b a a a a a a Screw b Top plate 2 Remove the top plate 3 12 3 To remove the front plate INFORMATION This procedure is just an example and may differ on some details for your actual unit Prerequisite Remove the top plate see 3 12 Plate work 4111 1 Loosen and remove the screws that fix the front plate a a a a a a a Screw b Front plate 2 Remove the front plate 3 12 4 To remove the compress...

Page 113: ...emove the required plate work see 3 12 Plate work 4111 1 Disconnect all field wiring electrical power supply wiring wiring to indoor unit s ground wires from the wire terminals c a a b c c c d d f e e e g g h i i h h a Wire terminal b Ground wire c Screw d Tie strap e Connectors f Fan motor connector X1A g Wire clip left side h Wire clip upper side i Wire clip right side 2 Remove the five screws t...

Page 114: ...e INFORMATION The power supply cables from the power supply wire terminal to the noise filter PCB can stay in the wire clips DANGER RISK OF ELECTROCUTION Confirm the rectifier voltage is below 10 V DC before proceeding see To check the rectifier voltage 4135 8 Remove the cover of the compressor wire terminals a a Compressor wire terminals cover 9 Disconnect the Faston connectors from the compresso...

Page 115: ...a a a Faston connector 10 Rotate the terminal plate upwards and remove the two screws from the heat sink and the screw from the service port a b c b d a Terminal plate b Screw heat sink c Screw service port d Heat sink 11 Remove the 2 screws that fix the switch box supporting plate to the unit ...

Page 116: ... plate on the right hand side the switch box from the outdoor unit CAUTION Take care that the thermal interface grease applied on the heat sink does NOT smear everything 15 To install the switch box see 3 12 Plate work 4111 3 12 6 To install the switch box 1 Use a piece of cloth to remove the old thermal interface grease and clean the heat sink surface s 2 Apply new thermal interface grease on the...

Page 117: ...pressor body and the discharge pipe Guide the sheet metal plate of the service port behind the switch box mounting plate to correctly install the service port and avoid pipe bending Slightly tilt the heat sink forward 10 and avoid that the thermal interface grease gets smeared everywhere Hook the switch box mounting plate in the support plate on the right hand side 4 Install the hooks of the switc...

Page 118: ...ue 8 Close the terminal plate Make sure no wires get stuck in the hinge mechanism 9 Connect the Faston connectors to the compressor wire terminals U V and W and install the cover of the compressor wire terminals INFORMATION Use the notes made during disconnection to connect the compressor wiring to the correct wire terminals of the compressor 10 On the right hand side pull the wires through the ho...

Page 119: ...e switch box mounting plate 16 Connect all field wiring electrical power supply wiring wiring to indoor unit s ground wires to the wire terminals 3 12 7 To access the back side of 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 4111 1 Remove the five screw...

Page 120: ...itch box supporting plate to the unit a b a c a Screw b Switch box supporting plate c Switch box 5 Lift and remove unhook from the switch box the switch box supporting plate from the outdoor unit 6 Lift and remove unhook from the support plate on the right hand side the switch box from the outdoor unit CAUTION Take care that the thermal interface grease applied on the heat sink does NOT smear ever...

Page 121: ...ck the connections of the reactor on the inverter PCB see 6 2 Wiring diagram 4151 3 Remove the Faston connectors from the reactor b b a a Reactor b Faston connector 4 Using a megger device of 500 V DC check the insulation resistance Make sure there is no earth leakage Is the measured insulation resistance correct Action Yes Continue with the next step No Replace the reactor see 3 13 2 Repair proce...

Page 122: ...emove the reactor a a b c c c c a Faston connector b Reactor c Screw 5 To install the reactor see 3 13 2 Repair procedures 4122 To install the reactor 1 Install the reactor on the correct location on the inverter mounting plate 2 Install the 4 screws that fix the reactor to the inverter mounting plate 3 Connect the 2 power rails to the reactor terminals using the 2 screws Is the problem solved Act...

Page 123: ...ve coil Name Symbol Location PCB Connector Winding resistance Pressure equalization valve Y3S Main X8A 2 2 kΩ 10 Is the measured value correct Action Yes Continue with the next step No Replace the solenoid valve coil see 3 14 2 Repair procedures 4124 3 Re connect the solenoid valve connector to the main PCB 4 Turn ON the power using the respective circuit breaker 5 Turn on the unit using the user ...

Page 124: ...T be In closed position NOT energized when NOT activated In open position energized when activated 3 If the solenoid valve is closed check the valve inlet and outlet for any leaks Replace the valve body if any leaks are found see 3 14 2 Repair procedures 4124 4 If the solenoid valve is open check with a contact thermometer or by touching if refrigerant flows through the solenoid valve 5 Wait for t...

Page 125: ...ew that fixes the solenoid valve coil to the solenoid valve body 3 Remove the solenoid valve coil from the solenoid valve body 4 Disconnect the solenoid valve connector from the main PCB 5 Cut all tie straps that fix the solenoid valve harness 6 To install the solenoid valve coil see 3 14 2 Repair procedures 4124 To remove the solenoid valve body Prerequisite Recuperate the refrigerant from the re...

Page 126: ...cetylene torch and remove the solenoid valve pipe end 6 Stop the nitrogen supply when the piping has cooled down 7 To install the solenoid valve body see 3 14 2 Repair procedures 4124 To install the solenoid valve body 1 Install the solenoid valve body in the correct location 2 Supply nitrogen to the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 3 Wrap a wet rag around the sol...

Page 127: ...e body b a c d e a Screw b Solenoid valve coil c Bracket d Screw e Solenoid valve body 2 Install and tighten the screw to fix the solenoid valve coil to the solenoid valve body 3 Install and tighten the screws to fix the solenoid valve to the bracket 4 Route the solenoid valve harness towards the switch box 5 Connect the solenoid valve connector to the main PCB WARNING When reconnecting a connecto...

Page 128: ... if needed Check that the thermistor is correctly installed and that there is thermal contact between the thermistor and the piping or ambient for air thermistor Is the thermistor correctly installed thermal contact between the thermistor and the piping Action Yes Perform an electrical check of the specific thermistor see Checking procedures 4128 No Correctly install the thermistor see Repair proc...

Page 129: ...thermistor R6T Main O U X30A 7 8 1 Compressor body thermistor R7T Main O U X29A 3 4 3 4 Determine the thermistor resistance that matches the measured temperature Type 1 thermistor T C kΩ T C kΩ T C kΩ T C kΩ 20 197 81 10 39 96 40 10 63 70 3 44 19 18 17 16 15 14 13 12 11 186 53 175 97 166 07 156 80 148 10 139 94 132 28 125 09 118 34 11 12 13 14 15 16 17 18 19 38 08 36 30 34 62 33 02 31 50 30 06 28 ...

Page 130: ...1 06 61 62 63 64 65 66 67 68 69 4 70 4 54 4 38 4 23 4 08 3 94 3 81 3 68 3 56 Type 2 thermistor T C kΩ T C kΩ T C kΩ T C kΩ 0 5 10 15 20 25 30 35 635 1 496 6 391 310 247 3 198 5 160 2 130 1 40 45 50 55 60 65 70 75 106 2 87 1 71 8 59 5 49 5 41 4 34 8 29 3 80 85 90 95 100 105 110 115 24 9 21 1 18 15 4 13 3 11 4 9 9 8 6 120 125 130 135 140 145 150 7 5 6 5 5 7 5 4 4 3 9 3 4 Type 3 thermistor T C kΩ T C...

Page 131: ...ases the user interface allows to monitor the thermistors If the measured resistance value matches the resistance determined through the measured temperature but the temperature for the corresponding thermistor is NOT correct on the user interface display replace the applicable PCB Does the measured resistance of the thermistor match with the temperature determined resistance Action Yes Thermistor...

Page 132: ...istor holder 6 Cut all tie straps that fix the thermistor harness 7 Disconnect the thermistor connector from the appropriate PCB and remove the thermistor INFORMATION Some of the thermistors are wired to the same connector See connector and pin information of the thermistors at the start of the electrical check procedure and 6 2 Wiring diagram 4151 ALWAYS replace the complete set of thermistors wi...

Page 133: ...e clip and install the thermistor in the specific thermistor holder Make sure the clip is in the correct position blocking the thermistor c a b e d f f a Clip b Thermistor c Thermistor holder d Insulation e Thermistor wire f Tie strap 2 Connect the thermistor connector to the appropriate PCB INFORMATION Some of the thermistors are wired to the same connector See connector and pin information of th...

Page 134: ...opriate 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 4 Fix the thermistor harness using new tie straps 5 Install the insulation around the thermistor 6 Fix the insulation and the thermistor wire using new tie straps Is the problem solved Action Yes No fur...

Page 135: ...1M The voltage MUST be 400 V AC 10 5 Measure the voltage between each phase and N on the power supply terminal X1M The voltage MUST be 230 V AC 10 6 Unbalance between the phases MUST NOT exceed 2 Is the measured voltage power supply correct Action Yes Return to the troubleshooting of the specific error and continue with the next procedure No Adjust the power supply see 4 1 2 Repair procedures 4137...

Page 136: ...ow 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 2 Check that no connectors or wires are damaged 3 Check that the wiring corresponds with the wiring diagram see 6 2 Wiring diagram 4151 INFORMATION Correct the wiring as needed Is the problem solved Action Yes No fu...

Page 137: ...ion via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 12 Plate work 4111 1 Make sure that all wires are firmly and correctly connected see 6 2 Wiring diagram 4151 2 Check the continuity of all wires 3 Replace any damaged or broken wires Is the problem solved Action Yes No further actions required No Return to the troublesh...

Page 138: ...e refrigerant to reach the outdoor temperature 2 Connect a manometer to the high pressure and low pressure service ports 3 Turn ON the power of the unit 4 Activate Heating operation via the user interface 5 Read the pressure on the high and low pressure gauges If there is a significant difference between high and low pressure the refrigerant circuit might be clogged 6 On the refrigerant liquid pip...

Page 139: ...ontinue with the next procedure To check if the refrigerant circuit is correctly charged Due to the relationship to pressure control and electronic expansion valve control the amount of refrigerant needs to be examined according to operating conditions Refer to the procedures shown below for correct examination Refrigerant overcharge diagnosis 1 High pressure rises Consequently overload control is...

Page 140: ...of overcharge To maintain high pressure frequency decreases under the capacity control Low pressure drops due to closed outdoor unit electronic expansion valve High pressure drops or rises immediately after the overload control is complete Low pressure rises due to decreased frequency Frequency comes to the minimum level The electronic expansion valve is closed due to the overload control Frequenc...

Page 141: ... frequency comes to the lowest level Heating Frequency Low pressure High pressure Proper amount Higher degree of shortage Degree of refrigerant shortage To maintain low pressure frequency initially increases due to the capacity control Frequency drops due to the low pressure drooping control High pressure is maintained at a constant level Frequency comes to the minimum level Discharge pipe or low ...

Page 142: ...t 1 Perform a pressure test in line with local legislation CAUTION Perform a pressure test only when leaks are expected Is the pressure in the refrigerant circuit correct Action Yes Return to the troubleshooting of the specific error and continue with the next procedure No Replace the leaking part of the refrigerant circuit see 4 2 2 Repair procedures 4142 To check if the refrigerant field piping ...

Page 143: ...h the next procedure To replace the clogged leaking part of the refrigerant circuit 1 See the correct procedure for the component that needs to be repaired See also Repair information 4146 for more details Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure To recuperate the refrigerant Prerequisit...

Page 144: ...ecovery 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 Without this additional setup the discharge line from the recovery device to the refrigerant cylinder would not have been vacuumed 3 Connect the vacuum pump manifold recovery unit and refrigerant recovery cyl...

Page 145: ...etely connected and there are no dead zones because of closed expansion or solenoid valves entering the vacuum mode ensures that all outdoor unit expansion valves get fully opened the solenoid valve gets fully opened 5 To add refrigerant see 4 2 2 Repair procedures 4142 Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue ...

Page 146: ...ump down operation which will collect all refrigerant from the field piping and indoor unit in the outdoor unit To protect the environment make sure to perform the following pump down operation when relocating the unit DANGER RISK OF EXPLOSION Pump down Refrigerant leakage If you want to pump down the system and there is a leak in the refrigerant circuit Do NOT use the unit s automatic pump down f...

Page 147: ...manual Brazing Use the correct brazing tool Use a phosphor copper filler metal silver composition of 0 to 2 Do not use flux material Flush the piping before brazing with nitrogen to avoid oxidation of the inside of the copper tubes nitrogen purity 99 99 4 3 External factors 4 3 1 Checking procedures To check the outdoor temperature 1 The temperature ranges for the different operation modes of the ...

Page 148: ...fic 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 2 If an external power source was found remove it Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next...

Page 149: ...hair fins 2 Clear the outdoor unit heat exchanger from dust leaves using a fin comb or compressed air N2 CAUTION Avoid bending or damaging the hair fins of the outdoor unit heat exchanger during the cleaning process Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure ...

Page 150: ...ZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 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 ...

Page 151: ...agram Only for Only for See note See note Outdoor Outdoor Indoor Indoor Upper EEV Upper electronic expansion valve Lower EEV Lower electronic expansion valve Fan Fan ON ON OFF OFF 2 Layout English Translation Layout Layout Front Front Left Left Back Back Position of compressor terminal Position of compressor terminal 3 Notes English Translation Notes Notes Connection X1M Indoor outdoor communicati...

Page 152: ...Part n Description Description A1P Printed circuit board main A2P Printed circuit board noise filter A3P Printed circuit board inverter A4P Printed circuit board fan A5P Printed circuit board demand C503 C506 C507 A3P Capacitor DS1 DS2 A1P DIP switch E1H Bottom plate heater E1HC Crankcase heater F1U A1P Fuse T 3 15 A 250 V F8U F9U Fuse F F101U A4P Fuse F101U F102U A2P Fuse F601U A3P Fuse HAP A1P A...

Page 153: ...uid pipe R7T Thermistor M1C body R24 A4P Resistor current sensor R300 A3P Resistor current sensor S1PH High pressure switch S1PL Low pressure switch SEG1 SEG3 A1P 7 segment display T1A Current sensor V1D A3P Diode V1R A3P A4P Diode module X A Connector X M Terminal block Y1E Electronic expansion valve main Y2E Electronic expansion valve injection Y2S Solenoid valve 4 way valve Y3S Solenoid valve p...

Page 154: ...D7Y1B Sky Air Advance series ESIE19 13A 2020 05 1 Connection diagram V E E r e p p U V E E r e w o L See note 3 ON ON OFF OFF See note 2 See note 2 2 Layout 3N 50 Hz 380 415 V Front Back Left Position of compressor terminal OUTDOOR INDOOR 4D124870 ...

Page 155: ...nical data Service manual 155 RZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 6 2 2 Wiring diagram Indoor unit INFORMATION See the service manual of the compatible indoor units for more information ...

Page 156: ...PS HPS A B 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 LPS Low pressure switch Heat exchanger Compressor Distributor Accumulator A Field piping liquid Ø9 5 mm pinched pipe B Field piping gas Ø25 4 mm pinched pipe Heating Cooling ...

Page 157: ...nical data Service manual 157 RZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 6 3 2 Piping diagram Indoor unit INFORMATION See the service manual of the compatible indoor units for more information ...

Page 158: ...p k a Fan motor i Expanion valve main Y1E b Current sensor j Gas stop valve with service port c Main PCB k Refrigerant liquid thermistor R6T d Suction thermistor R3T l Compressor body thermistor R7T e Expansion valve injection Y2E m Compressor M1C f Service port n Liquid stop valve with service port g Accumulator o Discharge pipe thermistor R2T h Heat exchanger thermistor R4T p Fan ...

Page 159: ...20 05 q r s t u v w x y z aa ab ac q Low pressure switch S1PL x Muffler r High pressure switch S1PH y Heat exchanger middle thermistor R5T s Reactor z Air thermistor R1T t Noise filter PCB aa Filter u 4 way valve Y2S ab Inverter PCB v Solenoid valve Y3S ac Fan inverter PCB w Heat exchanger ...

Page 160: ...cal data Service manual 160 RZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 6 4 2 Component overview Indoor unit INFORMATION See the service manual of the compatible indoor units for more information ...

Page 161: ...CTION A A M1F HIGH VOLTAGE TO AVOID TOUCHING THE FAN OR HEAT EXCHANGER FINS NO SAGGING IS ALLOWED FOR M1F LEAD WIRE FAN MOTOR M1F PARTITION PLATE HOOKS 5x B COMPRESSOR M1C M1F HIGH VOLTAGE C MAKE SURE THE CABLE IS FIXED TIGHT SO NO ACCIDENTAL TOUCHING WITH THE FINS THE PROPELLOR FAN OR THE FAN MOTOR OCCURS DETAIL D D INSERT THE CONNECTOR FROM THE FAN MOTOR CABLE INTO THE CONNECTOR FROM THE SWITCH ...

Page 162: ...CE SEE FIGURE BELOW 5 POSITIONS DETAIL V1 DETAIL V2 DETAIL P R2T Tdi LOW VOLTAGE R6T Tl S1PL S1PH R1 7T Y1E Y3E LOW VOLTAGE KA KA R7T Ti LOW VOLTAGE FIX TO THE LEFT SIDE OF THE PIPE DETAIL S Y1S HIGH VOLTAGE KA Y3S HIGH VOLTAGE CLICK IN THE RANGE OF SHOWN ANGLE 30 30 DETAIL W H M1C HIGH VOLTAGE R7T Ti LOW VOLTAGE R2T Tdi LOW VOLTAGE KA R6T Tl LOW VOLTAGE MAKE SURE THE WIRE IS FIXED ON THE BACKSIDE...

Page 163: ...C R R KN SEE DETAIL V1 KM SEE DETAIL V2 TO SWITCHBOX R2T Tdi LOW VOLTAGE U CRANK CASE HEATER WIRE HIGH VOLTAGE SECTION E E WRAP CUSHION AROUND THE CAPILLARY TUBES AS SHOWN KG DETAIL U 1 PULL THE LEAD WIRE OF R1T THROUGH THE HOLE OF THE RIGHT SIDE PLATE R1T 3 FIX THRMISTOR BODY IN THE THERMISTOR FIXING PLATE DIRECTION STOPPER THERMISTOR FIXING PLATE GAP 4 PUT THE LEAD WIRE IN THE GAP AND CLOSE THE ...

Page 164: ...2P EL COMPO BOX ASSY L1 L2 L3 N FIELD WIRING CONNECTION FOR SWITCHBOX INDOOR OUTDOOR WIRING POWER SUPPLY VIEW AC F DETAIL F R4T Tb LOW VOLTAGE KA DO NOT COVER THE BRAZED PART KC NOTE MAKE SURE THE WIRES DOES NOT TOUCH ANY COPPER PIPE KK J VIEW J KF WRAP CUSHION AROUND R1T AND R5T LEAD WIRES R1T Tm R5T Ta LOW VOLTAGE R4T Tb LOW VOLTAGE KF WRAP CUSHION AROUND R4T LEAD WIRES R1T Ta LOW VOLTAGE SEE DE...

Page 165: ...te J L N P R6T Refrigerant liquid thermistor 7 mm Blue P W R2T Discharge pipe thermistor 8 mm Yellow Red X29A Red Low P W AB R7T Compressor body thermistor 8 mm None P W Y1E Electronic expansion valve main White X21A White Low L P V Y3E Electronic expansion valve liquid injection Blue X22A Blue Low L P V S1PL Low pressure switch Red X31A Red Low K L P S1PH High pressure switch White X2A White Low ...

Page 166: ...6 Technical data Service manual 166 RZA200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 6 6 Field information report See next page ...

Page 167: ...ation is required Please fill out the following form before contacting your distributor FIELD INFORMATION REPORT Key person information Name Company name Your contact details Phone number E mail address Site address Your reference Date of visit Claim information Title Problem description Error code Trouble date Problem frequency Investigation steps done Insert picture of the trouble Current situat...

Page 168: ...PCB A1P Software version hydro PCB A5P Software version user interface Software version outdoor PCB Minimum water volume Maximum water volume Brine composition and mixture Brine freeze up temperature Space heating control leaving water temperature room thermostat external room thermostat Space heating setpoint Domestic hot water control reheat only schedule only reheat schedule Domestic hot water ...

Page 169: ...e 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 Also additional information on the service tools instruction latest software can be found here ...

Page 170: ... To use mode 1 Mode 1 is used to monitor the status of the unit What How Changing and accessing the setting in mode 1 Once mode 1 is selected push BS1 one time you can select the wanted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 one time To quit and return to the initial status Press BS1 Example Checking the content of parameter 1 20 to know the...

Page 171: ...ted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 1 time Now BS2 is used to select the required value of the selected setting When the required value is selected you can define the change of value by pushing BS3 1 time Press BS3 again to start operation according to the chosen value Example Checking the content of parameter 2 18 to define the power...

Page 172: ...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 6 To leave the monitoring function push BS1 1 time ...

Page 173: ...mpty 11 Outdoor unit cumulative operating time Unit Hours 100 12 Compressor cumulative operating time Unit Hours 100 13 Inverter secondary current 14 Outdoor fan speed step 15 Inverter output Hz 16 Expansion valve opening 1 17 Expansion valve opening 2 18 Outdoor unit discharge sensor temperature 19 Outdoor unit suction pipe sensor temperature 20 Outdoor unit air sensor temperature 21 Outdoor unit...

Page 174: ... setting 2 02 1 Off 2 On 3 Low noise setting see diagram below low noise level start and end time of automatic low noise during nighttime 2 03 1 Level 1 22h00 6h00 2 Level 1 22h00 8hhh00 3 Level 2 22h00 6h00 4 Level 2 22h00 8hhh00 5 Level 2 20h00 8h00 6 Level 3 22h00 8h00 7 Level 3 20h00 8h00 7 Defrost slow starting setting 2 07 1 Off 2 On 8 Defrost quick starting setting 2 08 1 Off 2 On 17 Refrig...

Page 175: ...ng nighttime low noise setting and required capacity prior set by remote controller Image of concurrent operation of A and B Start time and End time MUST be regarded as a guide because they are estimated based on the outside temperature To activate night time low noise operation Lower the operation sound of the outdoor unit Model RZA200 RZA250 Sound reduction 8 dBA 8 dBA INFORMATION Sound reductio...

Page 176: ... made in accordance with the outdoor temperature the above mentioned timing is an estimation only When setting mode 2 00 02 in combination with 2 01 02 the night time low noise operation will be stopped when the heating or cooling load increases In that case the operation will return to normal operation The unit will return to night time low noise operation when the heating or cooling load decreas...

Page 177: ...mand function Set a limitation towards the power consumption of the system e g budget control limit power consumption during peak moments 3 different demand settings can be selected by using terminal X801M Demand 1 Close the contact between COM and contact 1 of the X801M terminal Demand 2 Close the contact between COM and contact 2 of the X801M terminal Demand 3 Close the contact between COM and c...

Page 178: ... series ESIE19 13A 2020 05 ON ON OFF OFF DS1 setting Maximum power consumption 1 2 Image OFF OFF ON OFF 1 2 3 4 60 ON OFF ON OFF 1 2 3 4 70 OFF ON ON OFF 1 2 3 4 80 ON ON ON OFF 1 2 3 4 100 Demand 2 Power consumption limitation set to 40 Demand 3 Forced thermostat OFF ...

Page 179: ...rvice Settings menu is displayed 3 Select Field Settings Return Setting Service Settings 1 3 Test Operation Maintenance Contact Field Settings Demand Min Setpoints Differential Group Address 4 Press The Field Settings screen is displayed In case of individual setting per indoor unit Action Result 1 Highlight the Mode Select the desired Mode No The desired field setting mode is selected 2 When Mode...

Page 180: ...elect the desired Mode No The desired field setting mode is selected All Second Code No which may be set are displayed as Second Code No means no function Field Settings Mode 10 Setting Return 2 Highlight the Second Code No of the First Code No to be changed Select the desired Second Code No Multiple identical mode number settings are available is changed to the set Second Code No Field Settings M...

Page 181: ...fic field settings of each type of indoor unit see the installation manual of the indoor units Field settings that are not available for a connected indoor unit are not displayed Field setting default values are different depending on the indoor unit model For more information see the service manual of the indoor units Via the wireless controller BRC7 To set the field settings you have to change M...

Page 182: ...r reference guide of the Madoka wired remote controller for correct procedure Madoka Assistant for 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 To set as installer mode In order to retrieve the field settings the Madoka Assistant app has to ...

Page 183: ...n 5 times Installer mode screen is displayed 4 Select tap the length of time the Madoka Assistant app is set as installer mode Temporary for 30 minutes Indefinite for unlimited time The Madoka Assistant app is set as installer mode To retrieve field settings Action Image Result 1 Tap the settings icon The Unit settings screen is displayed ...

Page 184: ...t 2 Tap Field settings The Field settings screen is displayed 3 Tap and select the type for which you want to set the field settings Indoor unit Remote controller Field settings can now be set for the selected type 4 Tap and select the desired Mode No from the drop down list The field setting mode is now selected ...

Page 185: ...ing per indoor unit current settings are displayed In the case of group total setting all of Second Code No which may be set are displayed as Second Code No means no function 6 Tap the Second Code No of the First Code No to be changed Select the desired Second Code No Multiple identical mode number settings are available Field settings are now set as desired but still need to be saved INFORMATION ...

Page 186: ...200 250D7Y1B Sky Air Advance series ESIE19 13A 2020 05 Action Image Result 2 Tap Apply Changes are applied to the field settings 3 Tap Apply Changes to the field settings are confirmed 4 Tap Return to field settings Field settings are saved ...

Page 187: ... Remote controller thermistor 01 Enabled 02 Disabled 3 Filter cleaning sign 01 Display 02 No display 7 3 Detection time for NOT presence 01 30 minutes 02 60 minutes 8 4 Compensation of suction air temperature in heating mode 01 COMPENSATE Temperature A 2 C which an air conditioner controls when the temperature of a remote controller is A C 02 NO COMPENSATION Temperature A C which an air conditione...

Page 188: ...on the floor temperature 8 5 Compensation of floor temperature 01 4 C 02 2 C 03 0 C 04 2 C 12 22 3 Fan speed heating thermostat OFF 01 LL speed 02 Set speed 5 Automatic restart after power failure reset 01 Disabled 02 Enabled 6 Fan speed cooling thermostat OFF OFF 01 LL speed 02 Set speed 13 23 0 High air outlet velocity for high ceiling applications 01 Standard 02 Slightly up 03 Up 1 Selection of...

Page 189: ...ce in terms of dust normal office 02 In case of dusty place 15 25 5 Individual setting of ventilation 01 Normal 02 Individual operation 1b 2b 14 Wind block 6 enable disable setting 01 Enable 05 Disable 1 Settings are made simultaneously for the entire group however if you select the Mode No inside parentheses you can also set by each individual unit Setting changes however CANNOT be checked except...

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Daikin Sky Air Advance RZA200D7Y1B, Service Manual

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