Daikin EDLQO5CAV3 Service Manual
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Daikin EDLQO5CAV3 Service Manual

Altherma monobloc ca
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ESIE15-08B
Service
Manual
Daikin Altherma Monobloc CA
EBLQO5 / O7CAV3
EKCB07CAV3
EKMBUHCA3V3
EDLQO5 / O7CAV3
EK2CB07CAV3
EKMBUHCA9WA
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Summary of Contents for Daikin EDLQO5CAV3

  • Page 1 ESIE15-08B Service Manual Daikin Altherma Monobloc CA EBLQO5 / O7CAV3 EKCB07CAV3 EKMBUHCA3V3 EDLQO5 / O7CAV3 EK2CB07CAV3 EKMBUHCA9WA...
  • Page 2 ESIE15-08B 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: Table Of Contents

    2.2. Warnings ................................. 10 2.3. Cautions ................................11 2.4. Information ..............................12 3. General operation of Daikin Altherma CA low temperature heat pump ............13 4. How to use this book ...........................15 4.1. Interactive information flow ..........................15 4.2. Parts of the book ............................. 16 4.2.1.
  • Page 4 Daikin Altherma Monobloc CA ESIE15-08B 2.27. “H1-00” – Optional temperature sensor error (indoor ambient) ..............32 2.28. “H3-00” – High pressure switch abnormality ....................32 2.29. “H6-00” – Malfunction of position detection sensor ..................32 2.30. “H8-00” – Malfunction of compressor input (CT) system ................33 2.31.
  • Page 5 1.3.1. Required products when servicing the Daikin Altherma Monobloc CA ............. 109 1.4. Tools ................................109 1.4.1. Required special tooling when servicing the Daikin Altherma Monobloc CA ..........109 2. Unit specific repair procedures Monobloc CA ...................110 2.1. Unit specific refrigerant and water procedures ....................110 2.1.1.
  • Page 6 Daikin Altherma Monobloc CA ESIE15-08B 2.2.9. Replacing the 4-way valve ........................127 2.2.10. Replacing the high pressure switch S1PH ....................129 2.2.11. Replacing the pressure sensor S1NPH ....................130 2.2.12. Replacing the expansion valve Y1E motor .....................131 2.2.13. Replacing the water pump M1P ......................133 Part 4.
  • Page 7 Daikin Altherma Monobloc CA ESIE15-08B List of figures General operation of the Daikin Altherma low temperature heat pump ..............13 Required tools for component check .........................88 Required products ..............................109 Required tools .................................109 Removing the hydrobox top plate assembly ......................110 Removing the hydrobox front plate .........................111 Removing the top plate ............................112...
  • Page 8 Daikin Altherma Monobloc CA ESIE15-08B Page 8 19/07/16...

  • Page 9: Part 1. Introduction

    Daikin Altherma Monobloc CA ESIE15-08B Part 1. Introduction 1. Version log Part 1. Introduction 1. Version log Version history. Version code Description Date Version A Document release 22/09/2015 ESIE15-08B Outdoor error code added (L3) 19/07/2016 2. Safety precautions The precautions described in this document cover very important topics, follow them carefully.

  • Page 10: Warnings

    ARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). ARNING Make sure the work site environment is clean and safe to work in. Beware of spilled fluids, like water, oil or other sub- stances.

  • Page 11: Cautions

    Daikin Altherma Monobloc CA ESIE15-08B Part 1. Introduction 2. Safety precautions ARNING ISK OF BURNING • Do NOT touch the refrigerant piping, water piping or internal parts during and immediately after operation. It could be too hot or too cold. Give it time to return to normal temperature. If you must touch it, wear protective gloves.

  • Page 12: Information

    Daikin Altherma Monobloc CA ESIE15-08B Part 1. Introduction 2. Safety precautions AUTION • Make sure water quality complies with EU directive 98/83 EC. • Check the system for leaks after each repair/modification of the water side. • Check drainage system(s) after repairs.

  • Page 13: General Operation Of Daikin Altherma Ca Low Temperature Heat Pump

    3. General operation of Daikin Altherma CA low temperature heat pump The total Daikin Altherma Monobloc CA heat pump consists out of 2 loops: refrigerant and water/glycol. A plate heat exchanger transmits the heat from the refrigerant to the water/glycol, which is then, depending on the position of the 3-way valve, used for space heating or domestic hot water.
  • Page 14 Daikin Altherma Monobloc CA ESIE15-08B Part 1. Introduction 3. General operation of Daikin Altherma CA low temperature heat pump When the unit starts operation, following behaviour occurs: Thermo Decide thermo “OFF” “ON” Remocon Sampling(*) Sampling(*) O pump “ON” ~ 3 min.

  • Page 15: How To Use This Book

    4.1. Interactive information flow This Daikin product Service Manual is intended for professional use only. The actions described hereafter, are only to be performed by qualified and certified persons, taking into account the safety precautions mentioned in this manual and the local regulations as well.

  • Page 16: Parts Of The Book

    4.2. Parts of the book This Daikin product Service Manual is intended for professional use only. The actions described hereafter, are only to be performed by qualified and certified persons, taking into account the safety precautions mentioned in this manual and the local regulations as well.

  • Page 17: Part 2. Troubleshooting

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 1. Error codes Part 2. Troubleshooting This part contains the following chapters: 1. Error codes .................17 4. Component checklist - Water Circuit.......... 65 2. Error code based troubleshooting..........19 5. Component checklist - Refrigerant Circuit........88 3.

  • Page 18: How To Reset Error Codes

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 1. Error codes If an error is present, it will immediately be displayed on the user interface screen: for more information about troubleshooting, refer "Error code based troubleshooting" on page 1.2. How to reset error codes When the problem is solved, you can reset the error by pushing the OK-button unless otherwise mentioned on the screen.

  • Page 19: Error Code Based Troubleshooting

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2. Error code based troubleshooting Overview of error codes: “AA-00” – Back up heater safety error ..........19 “L3-00” – Switch box temperature abnormality ......36 “AC-00” – Booster heater thermal protector is open .......20 “L4-00”...

  • Page 20: Ac-00" - Booster Heater Thermal Protector Is Open

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty hydro PCB A1P. Check if the alive led is blinking in regular Adjust the power to the PCB. intervals. Replace hydro PCB A1P when alive led is Check if the correct spare part is installed.

  • Page 21: Ah-00" - Disinfection Operation Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.3. “AH-00” – Disinfection operation error Trigger Effect Reset Disinfection setpoint is not reached or not Unit will continue operating. Auto-reset when next disinfection is com- kept at required temperature long enough.

  • Page 22: A1-00" - Zero Cross Detection Problem

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.5. “A1-00” – Zero cross detection problem Trigger Effect Reset Multiple zero-cross is detected in approxi- Unit will stop operating. Manual reset via user interface. mately 10 continuous seconds.

  • Page 23: Cj-02" - User Interface Room Temperature Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Water flow is too low. Check the minimum water flow required Adjust system to meet the water flow for the system. Refer to Installer Refer- requirements. ence Guide.

  • Page 24: C0-02" - Flow Switch Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.11. “C0-02” – Flow switch error Trigger Effect Reset Flow switch warning triggered too often. Unit will stop operating. Manual reset via user interface. Unit detects flow when pump is not run- ning.

  • Page 25: Ec-00" - Domestic Hot Water Temperature Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty outdoor main PCB. Check if the alive led is blinking in regular Adjust the power to the outdoor main intervals. PCB. Check if the correct spare part is installed.

  • Page 26: E3-00" - High Pressure Abnormality (Refrigerant)

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting External factor (e.g. electrical noise) Check for source which could cause elec- (cause when error is reset after power trical interference. reset, and error happens again after awhile).

  • Page 27: E5-00" - Compressor Motor Lock

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Bad contact through pressure sensor Check if pressure sensor connector X17A Connect or replace sensor cable when cable. is properly connected to the outdoor PCB required. board A1P.

  • Page 28: E7-00" - Malfunction Of Outdoor Unit Fan Motor

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Possible cause Check Corrective action Faulty or disturbance of the power supply. Check if the power supply is conform with Adjust power supply when required. (Imbalance > 10%) Power drop.

  • Page 29: E9-00" - Expansion Valve Abnormality

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty outdoor main PCB. Check if the alive led is blinking in regular Adjust the power to the outdoor main intervals. PCB. Check if the correct spare part is installed.

  • Page 30: F6-00" - Abnormal High Pressure In Cooling

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty compressor. Check compressor (see page 91). Replace the compressor when required. (see page 125). Check compressor connection and wiring. Investigate the reason of breakdown. Check expansion valve operation (liquid back issue).

  • Page 31: Hc-00" - Domestic Hot Water Temperature Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.25. “HC-00” – Domestic hot water temperature error Trigger Effect Reset Abnormal value detected (open or short Unit will keep operating. Auto reset when problem is solved.

  • Page 32: H1-00" - Optional Temperature Sensor Error (Indoor Ambient)

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.27. “H1-00” – Optional temperature sensor error (indoor ambient) Trigger Effect Reset Optional thermistor detects an abnormal Unit will keep operating. Auto reset when problem is solved.

  • Page 33: H8-00" - Malfunction Of Compressor Input (Ct) System

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty outdoor main PCB. Check if the alive led is blinking in regular Adjust the power to the outdoor main intervals. PCB. Check if the correct spare part is installed.

  • Page 34: Ja-00 / Ji-00" - Pressure Sensor Abnormality

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.32. “JA-00 / JI-00” – Pressure sensor abnormality Trigger Effect Reset Pressure sensor detects an abnormal Unit stops operating. Auto-reset. value for 3 minutes (> 4,5 MPa or < -0,05 MPa).

  • Page 35: J7-00" - Malfunction Of Intermediate Heat Exchanger Thermistor

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.35. “J7-00” – Malfunction of intermediate heat exchanger thermistor Trigger Effect Reset Intermediate heat exchanger thermistor Unit stops operating. Auto-reset when problem is solved. detects an abnormal value (open or short circuit).

  • Page 36: L1-00" - Outdoor Main Pcb Abnormality

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting External factor (e.g. electrical noise) Check for source which could cause elec- (cause when error is reset after power trical interference. reset, and error happens again after awhile).

  • Page 37: L4-00" - Radiation Fin Temperature Abnormality

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty outdoor fan motor. Check the fan motor (see page 103). Replace fan motor when required (see page 116). Check fan motor connections and wiring. Adjust wiring when required.

  • Page 38: L8-00" - Electronic Thermal Overload

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.42. “L8-00” – Electronic thermal overload Trigger Effect Reset When compressor overload (except dur- Unit will stop operating. Manual reset via user interface. ing startup) is detected.

  • Page 39: Ua-16" - Communication Warning Between Hydro Pcb A1P And Control Box Pcb

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Faulty outdoor inverter PCB. Check outdoor inverter PCB (see Adjust the power to the outdoor inverter page 101). PCB. Check if the alive led is blinking in regular Replace outdoor inverter PCB when intervals.

  • Page 40: Ua-22" - Communication Warning Between Control Box And Option Box

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Possible cause Check Corrective action See possible cause for UA error. Correct installation. Faulty extension PCB A4P. Check PCB A4P (see page 86). Replace extension PCB A4P when required.

  • Page 41: Uf-00" - Communication Error Between Hydro Pcb A1P And Outdoor Main Pcb Or Gas Shortage

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.49. “UF-00” – Communication error between hydro PCB A1P and outdoor main PCB or gas shortage Trigger Effect Reset When the interunit wiring between indoor Unit stops operating.

  • Page 42: U3-00" - Abnormal Stop Of Underfloor Heating Dry-Out Scheduled Operation

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.51. “U3-00” – Abnormal stop of underfloor heating dry-out scheduled operation Trigger Effect Reset Screed dry-out program was interrupted. Unit will stop UFH dry-out schedule. Manual reset via user interface -> only possible in "installer"...

  • Page 43: U5-00" - Transmission Error Between User Interface And Hydro Pcb A1P

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.53. “U5-00” – Transmission error between user interface and hydro PCB A1P Trigger Effect Reset Hydro PCB A1P detects abnormal trans- Unit will stop operation. Auto-reset. mission to user interface for a certain time.

  • Page 44: 7H-04" - Water Flow Abnormality During Dhw Operation

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Water in the system: during cooling opera- Unit will stop operating. Manual reset via user interface. tion the flow < 6 l/min (5 kW unit), < 10 l/min(7 kW unit) for 15 seconds.

  • Page 45: 7H-05" - Water Flow Abnormality During Space Heating Operation

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting Possible cause Check Corrective action See possible cause for 7H-01. Focus error handling on DHW circuit. 2.57. “7H-05” – Water flow abnormality during space heating operation Trigger...

  • Page 46: 8H-00" - Backup Heater Outlet Water Temperature Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.60. “8H-00” – Backup heater outlet water temperature error Trigger Effect Reset Backup heater outlet thermistor R2T Unit will stop operating. Manual reset via user interface. detects temperature above 65°C (SPH) or 75°C (DHW).

  • Page 47: 89-01" - Plate Heat Exchanger Freeze-Up Error

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.63. “89-01” – Plate heat exchanger freeze-up error Trigger Effect Reset When warning 89-02 (Tc < 0°C during Unit stops operating. Manual reset via user interface. space heating) occurs 3 times (with less than 30 minutes between each abnormal- ity).

  • Page 48: 89-03" - Plate Heat Exchanger Warning During Defrost

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 2. Error code based troubleshooting 2.65. “89-03” – Plate heat exchanger warning during defrost Trigger Effect Reset Te is too low during defrost. Defrost cycle is interrupted but unit will Auto-reset when problem is solved.

  • Page 49: Symptom Based Troubleshooting

    3. Symptom based troubleshooting 3. Symptom based troubleshooting By deeply analysing the system's components and logic, Daikin offers enhanced symptom based troubleshooting. To provide the best troubleshooting efficiency, the related root cause categories for each symptom are ranked. The following ranking is used: software control functions, end user related, parameter settings, installation related, component (mechanical or electrical) issues and system design related.
  • Page 50 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Compressor (M1C) frequency This protection control acti- Activation of the protection Based on the diagnosis exe- limited - suction pipe super-...

  • Page 51: Capacity Shortage - Space Heating

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Water circuit (partially) Dirty water. Check water circuit (unit + Remove possible blockages blocked. field) for blockages. and check the water quality.
  • Page 52 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Root cause category: parameter (setting) External room thermostat used Wrong setting of [A.2.1.7] - Check setting [A.2.1.7]. Adjust setting to match appli- with setting [A.2.1.7] on value...

  • Page 53: Capacity Shortage - Domestic Hot Water Operation

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.3. Capacity shortage - Domestic hot water operation NFORMATION Refer to "Capacity shortage - General" on page 49 for an overview of the general causes (both for space heating and domestic hot water) which can lead to capacity shortage.

  • Page 54: The System Does Not Start/Operate

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.4. The system does not start/operate Possible failures Root cause Check Corrective action Root cause category: software control Thermostat ON conditions Thermostat ON conditions Confirm thermostat on conditions depend-...

  • Page 55: Inaccurate Temperature Control (For Both Domestic Hot Water And Space Heating Operation)

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Displayed date/time is Daylight Saving Time not Check Daylight Saving Time settings. Set Daylight Saving Time wrong - schedules not cor- set correctly.

  • Page 56: Water Leakage Or Water Release Via The Water Pressure Relieve Valve

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Root cause category: installation User interface - thermostat Bad location of thermostat Check if user interface is Correct the position of the user...

  • Page 57: Power Consumption Too High

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.7. Power consumption too high Possible failures Root cause Check Corrective action Root cause category: end user Too high domestic hot water User set too high domestic hot...

  • Page 58: Increased Sound Level - Water Pump

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.8. Increased sound level - water pump Possible failures Root cause Check Corrective action Root cause category: installation Water filter blocked. Dirty water. • Check water filter. Clean the water filter.

  • Page 59: Tapping Water Related

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.10. Tapping water related 3.10.1. High water pressure at tapping point Possible failures Root cause Check Corrective action Root cause category: component - mechanical Safety valve water side Component failure.

  • Page 60: Compressor Related

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.11. Compressor related 3.11.1. Compressor does not start Possible failures Root cause Check Corrective action Root cause category: software control Compressor does not start Special software control acti-...
  • Page 61 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting Possible failures Root cause Check Corrective action Compressor frequency limited This protection control acti- Activation of the protection Based on the diagnosis exe- - suction pipe superheat pro-...

  • Page 62: Pump Related

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.12. Pump related 3.12.1. Water pump behaviour Possible failures Root cause Check Corrective action Root cause category: software control Unexpected water pump Water pump software control Water pump start/stop condi-...

  • Page 63: Outdoor Unit Is Iced Up (Defrost Problem)

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.14. Outdoor unit is iced up (defrost problem) Possible failures Root cause Check Corrective action Root cause category: hardware General ice build-up. Outdoor unit installation must be protected from weather (wind, snow, ...).

  • Page 64: Water Volume/Flow Related

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 3. Symptom based troubleshooting 3.16. Water volume/flow related Possible failures Root cause Check Corrective action The water flow is to low (7H Shut off valve are closed. Check if shut off valves are com- Open shut of valves if required.

  • Page 65: Component Checklist - Water Circuit

    Switch box - BUH*9V Unit BUH*9V X14M X15M Check procedure Mechanical check Not applicable Preliminary check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. 19/07/16 Page 65...

  • Page 66: Overall Power Circuit Check

    If 1 or more checks fail, replace the backup heater. 4.1.1. Overall power circuit check Power the Daikin Altherma Monobloc CA. Activate “Installer level” on the user interface, refer to “Installer Level Settings” in the Installer Reference Guide to access the most used commands.

  • Page 67: Resistance Check

    4.1.3. Isolation check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. AUTION To prevent damage to the unit, F1B or F2B, K1M, K2M and K5M (if installed) must be OPENED before using a Meg- ger.
  • Page 68 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit Measure the leak current between • K1M 1 - earth (single phase) • K1M 1- earth • K1M 3- earth • K1M 5- earth • K2M 1- earth •...

  • Page 69: Booster Heater E4H

    Electrical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the front panel of the control box. Check electrical connections of the tank. Refer to “Installation manual of the tank”.

  • Page 70: Thermistors

    Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Locate the thermistor and check if thermal contact with the piping or ambient is ensured.
  • Page 71 Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...
  • Page 72 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit X15M: 1-2 Outlet water after backup heater X7A: 1-2 Refrigerant liquid X8A: 1-2 Inlet water X2M: 3-4 Domestic hot water tank A1P/A4P X5M: 5-6 / X2M:1a-2a...

  • Page 73: Water Pump M1P (Main Supply Pump)

    Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox front plate, refer to "Removing the hydrobox front plate" on page 111.
  • Page 74 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit most used commands. Select Actuator test run A.7.4. Activate the water pump (A.7.4.6). Check the LED on the water pump, it must light green. LED Status...

  • Page 75: Water Pump M2P (Dhw Pump)

    Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Drain the water circuit, refer to Installer Reference Guide. Locate the pump in the piping installation.
  • Page 76 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit Measure the voltage on terminal strip X8M pin 8-9 in the control box, if no 230VAC +/- 10% is measured, replace PCB A1P. Location Control box...

  • Page 77: Plate Type Heat Exchanger

    "Removing the hydrobox front plate" on page 111. Power the Daikin Altherma Monobloc CA and activate domestic hot water or space heating and wait 15 minutes. Activate “Installer level” on the user interface, refer to “Installer Level Settings” in the Installer Reference Guide to access the most used commands.
  • Page 78 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit Recover the refrigerant. Refer to the nameplate for the correct charge. If less than the indicated charge is recovered, a pressure test must be performed. Pressurize the refrigerant circuit with Nitrogen at 40 bar.

  • Page 79: Thermal Protector Backup Heater Q1L

    Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit 4.7. Thermal protector backup heater Q1L Technical specification Description The thermal protector backup heater Q1L is triggered if the temperature The thermal protector backup heater Q1L is a exceeds 92°C.
  • Page 80 PCB. Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the front panel of the BUH kit. Loosen and remove the 2 screws that fix the thermal protector backup heater bracket.

  • Page 81: Water Flow Sensor B1L

    When reconnecting a connector to the PCB, do not apply force or damage the connector or the connector pins on the PCB. Power the Daikin Altherma Monobloc CA. Activate “Installer level” on the user interface, refer to “Installer Level Settings” in the Installer Reference Guide to access the most used commands.
  • Page 82 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit Measure the voltage on X4A: pin 2 (white) - pin 3 (blue) (= flow sensor output signal). If the measured voltage is outside the expected range, replace the water flow sensor B1L; if the measured voltage does not correspond with the displayed flow on the user interface, replace PCB A1P.

  • Page 83: Water Flow Switch S1L

    When reconnecting a connector to the PCB, do not apply force or damage the connector or the connector pins on the PCB. Power the Daikin Altherma Monobloc CA. Activate “Installer level” on the user interface, refer to “Installer Level Settings” in the Installer Reference Guide to access the most used commands.

  • Page 84: 3-Way Valve M3S

    Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Locate the 3-way valve in the system. Check that the knob is fully pressed (= motor control).
  • Page 85 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit Using a contact thermometer, measure the temperature at the 3-way valve Domestic Hot Water exit and at the Space Heating exit; the Domestic Hot Water exit must have the same temperature as the 3-way valve input, the Space Heating exit must have a much lower temperature.

  • Page 86: Extension Pcb A4P

    PCB. Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...
  • Page 87 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 4. Component checklist - Water Circuit LED INFORMATION LED 1 blinks when Ethernet cable is connected to PCB A4P. LED 4 is on when SD-card is connected to PCB A4P LED 3 has no functionality.

  • Page 88: Component Checklist - Refrigerant Circuit

    A single type of thermistor is used; the resistance vs. temperature characteris- The thermistors are used to measure the temper- tics shown in Table 2-4 on page 90. ature at multiple locations inside the Daikin Altherma Monobloc CA . The measured tempera- tures are processed by the PCB1 Main board.
  • Page 89 Check procedure AUTION If the platework of the Daikin Altherma Monobloc CA is bent (e.g. when replacing a thermistor), chances are the platework no longer aligns correctly with the hea t exchanger. This will increase the risk of ice build-up.
  • Page 90 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 5. Component checklist - Refrigerant Circuit • The measured value 21.86 kΩ is inside the range, thermistor R3T passes the check. NFORMATION The user interface “6.1. Sensor Information” allows to monitor most thermistors.

  • Page 91: Compressor M1C

    Check if the stop valve is open. Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the top plate, refer to "Removing the top plate" on page 112.
  • Page 92 122. Switch off the Daikin Altherma Monobloc CA via the user interface. 10. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. NFORMATION Note the position of the cables on the compressor wire terminals to allow identical wiring during reinstallation.

  • Page 93: Muffler

    Check procedure Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the top plate, refer to "Removing the top plate" on page 112.

  • Page 94: Pressure Sensor S1Nph

    PCB. Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...
  • Page 95 -5.1 -0.5 Output Voltage (V 10. Power the Daikin Altherma Monobloc CA. NFORMATION The pressure sensor connector must be plugged into X60A on PCB1. 11. Measure the voltage across connector X60A: pin 1-3; compare the measured voltage with the expected voltage.

  • Page 96: High Pressure Switch S1Ph

    PCB. Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...

  • Page 97: Electronic Expansion Valve Y1E

    Blockage check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...
  • Page 98 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 5. Component checklist - Refrigerant Circuit Remove the front plate assembly, refer to "Removing the front plate assembly" on page 113. Disconnect the connector S20 from PCB1. Measure the 4 electromagnet windings S20: red - white, red orange, red - yellow and red - blue. All windings must read 46 Ω...

  • Page 99: 4-Way Valve Y1R

    Unplug connector S80 from the PCB2 inverter board. Switch on the Daikin Altherma Monobloc CA via the user interface, start cooling operation on the user interface. If the temperature after the plate type heat exchanger drops, proceed with step 10.
  • Page 100 127. 10. Switch on the Daikin Altherma Monobloc CA via the user interface, start cooling operation on the user interface. If the temperature after the plate type heat exchanger rises, the control of the 4-way valve is wrong, update the software.

  • Page 101: Inverter Pcb2

    PCB. Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...
  • Page 102 122. 15. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. 16. Wait a few minutes and confirm that the LED's on the inverter analyzer are off. 17. Disconnect the inverter analyzer from the U V W wiring.

  • Page 103: Fan Motor

    Mechanical check Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox top plate assembly, refer to "Removing the hydrobox top plate assembly" on page 110 Remove the hydrobox front plate, refer to "Removing the hydrobox front plate"...
  • Page 104 Daikin Altherma Monobloc CA ESIE15-08B Part 2. Troubleshooting 5. Component checklist - Refrigerant Circuit Check fuse FU2 on PCB2, replace if blown. Check if connector S70 is plugged into PCB2. Power the outdoor unit. Check power supply on X1M, the measured voltage must be 180 - 240 VAC.

  • Page 105: Part 3. Repair

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 1. General Repair procedures Part 3. Repair 1. General Repair procedures Refrigerant handling procedures ..........105 Products ..................109 Pipe work procedures ..............108 Tools..................... 109 1.1. Refrigerant handling procedures • Make sure the applied pressure is never higher than the unit design pressure as indicated on the nameplate.

  • Page 106: Refrigerant Recovery

    1.1.1. Refrigerant recovery 1.1.1.1 Small Outdoor unit ERLQ04-08CAV3 Switch off the Daikin Altherma Monobloc CA via the user interface. Manually open the expansion valve (located on the outdoor unit). Connect the vacuum pump, manifold, recovery unit and refrigerant bottle to the serviceport as shown below.

  • Page 107: Refrigerant Pump Down

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 1. General Repair procedures 1.1.2. Refrigerant pump down This unit is equipped with an automatic pump down operation which will collect all refrigerant from the field piping and hydro-box in the outdoor unit. To protect the environment, make sure to perform the following pump down operation when relocating or disposing of the unit.

  • Page 108: Pipe Work Procedures

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 1. General Repair procedures 1.2. Pipe work procedures • Make sure to cover open pipe ends during work so no dust or moisture can enter. • Make sure to re-apply insulation removed during repair.

  • Page 109: Products

    1.4. Tools 1.4.1. Required special tooling when servicing the Daikin Altherma Monobloc CA Daikin strongly recommends to use special tools to avoid damage to the equipment or to facilitate the replacement of certain spare parts. Figure 4 - Required tools 1.

  • Page 110: Unit Specific Repair Procedures Monobloc Ca

    2. Unit specific repair procedures Monobloc CA 2. Unit specific repair procedures Monobloc CA AUTION Daikin Altherma Monobloc CA is bent (e.g. when replacing a thermistor), chances are the If the platework of the platework no longer aligns correctly with the hea t exchanger.

  • Page 111: Removing The Hydrobox Front Plate

    Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Loosen and remove the 3 screws (1) that fix the hydrobox front plate (2) to the hydrobox.

  • Page 112: Removing The Top Plate

    Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Loosen and remove the screw (1) that fixes the top plate (2) to the heat exchanger.

  • Page 113: Removing The Front Plate Assembly

    Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Loosen and remove the screw (1) that fixes the front plate assembly (2) to the fan motor stand assembly.

  • Page 114: Removing The Compressor Sound Insulation

    2.1.5. Removing the compressor sound insulation Removal Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the front plate assembly, refer to "Removing the front plate assembly" on page 113.

  • Page 115: Parts Replacement Procedures

    2.2.1.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the front plate assembly, refer to "Removing the front plate assembly" on page 113.

  • Page 116: Replacing The Dc Fan Motor Assembly

    2.2.2.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the propeller fan blade assembly, refer to "Replacing the propeller fan blade assembly" on page 115.

  • Page 117: Replacing The Switch Box

    2.2.3.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the hydrobox front plate, refer to "Removing the hydrobox front plate" on page 111.

  • Page 118: Removing The Switch Box

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Figure 12 - Removing the switch box 14 11 10 30 29 1. Screw 10. S502 19. Cable feed through 28. S40 2. Switch box cover plate 11.

  • Page 119: Replacing The Pcb1 Main

    2.2.4. Replacing the PCB1 main 2.2.4.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the switch box, refer to "Replacing the switch box" on page 117.

  • Page 120: Removing The Pcb Assembly Main - 1

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Figure 13 - Removing the PCB assembly main - 1 1. Latch 5. PCB assembly main 2. Electrical component box cover 6. Screw 3. Electrical component box 7.

  • Page 121: Removing The Pcb Assembly Main - 2

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Figure 14 - Removing the PCB assembly main - 2 9 14 1. X1M-L 5. DCP2 9. S206 13. S20 17. S90 2. X1M-N 6. DCM2 10.

  • Page 122: Replacing The Pcb2 Inverter

    2.2.5. Replacing the PCB2 inverter 2.2.5.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the switch box, refer to "Replacing the switch box" on page 117.

  • Page 123: Removing The Pcb Assembly Inverter - 2

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Figure 15 - Removing the PCB assembly inverter - 2 1. Screw 6. S80 2. U 7. PCB2 assembly inverter 3. V 8. Screw 4. W 9.

  • Page 124: Replacing A Thermistor

    2.2.6.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Remove the front panel, refer to "Removing the front plate assembly" on page 113.

  • Page 125: Replacing The Compressor

    2.2.7. Replacing the compressor 2.2.7.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Recover the refrigerant, refer to "Refrigerant recovery" on page 106.

  • Page 126: Removing The Compressor

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Figure 17 - Removing the compressor 1. Screw 6. Nut 2. Partition plate assembly 7. Compressor 3. Terminal cover 8. Putty 4. Compressor wiring 9. Dampers 5.

  • Page 127: Replacing The 4-Way Valve Coil

    2. Unit specific repair procedures Monobloc CA 2.2.8. Replacing the 4-way valve coil 2.2.8.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. 2.2.8.2 Procedure ARNING ISK OF •...

  • Page 128: Removing The 4-Way Valve

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA 2.2.9.2 Procedure Removal Cut the tie wrap (1). Cut the 4-way valve pipes (2). Remove the 4-way valve (5). Recuperate the putty (3). Recuperate the insulation (4).

  • Page 129: Replacing The High Pressure Switch S1Ph

    2.2.10. Replacing the high pressure switch S1PH 2.2.10.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Recover the refrigerant, refer to "Refrigerant recovery" on page 106.

  • Page 130: Replacing The Pressure Sensor S1Nph

    2.2.11. Replacing the pressure sensor S1NPH 2.2.11.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. Recover the refrigerant, refer to "Refrigerant recovery" on page 106.

  • Page 131: Replacing The Expansion Valve Y1E Motor

    Proceed in reverse order. 2.2.12. Replacing the expansion valve Y1E motor 2.2.12.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. 2.2.12.2 Procedure ARNING ISK OF •...

  • Page 132: Removing The Expansion Valve Y1E Motor

    Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Figure 22 - Removing the expansion valve Y1E motor 1. Expansion valve motor 2. Expansion valve Y1E Installation NFORMATION Replace all tie wraps that were cut during removal.

  • Page 133: Replacing The Water Pump M1P

    2. Unit specific repair procedures Monobloc CA 2.2.13. Replacing the water pump M1P 2.2.13.1 Preliminary actions Switch off the Daikin Altherma Monobloc CA via the user interface. Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker. 2.2.13.2 Procedure ARNING ISK OF •...
  • Page 134 Daikin Altherma Monobloc CA ESIE15-08B Part 3. Repair 2. Unit specific repair procedures Monobloc CA Installation AUTION To prevent damage to the O-ring, moisten the O-ring before installing the pump. NFORMATION Replace all tie wraps that were cut during removal.

  • Page 135: Part 4. Maintenance

    Daikin Altherma Monobloc CA ESIE15-08B Part 4. Maintenance 1. Yearly maintenance intervals and procedures Part 4. Maintenance 1. Yearly maintenance intervals and procedures Following items should be checked on the product at least once a year: • Fluid pressure of Space Heating circuit •...

  • Page 136: Checking The Pressure Relief Valve Of Space Heating Circuit

    Daikin Altherma Monobloc CA ESIE15-08B Part 4. Maintenance 2. Maintenance procedures 2.3. Checking the pressure relief valve of Space Heating circuit Actions Remarks Open the valve and check the correct operation: A magnetic cyclone filter is to be preferred. •...

  • Page 137: Draining The Domestic Hot Water Tank

    Daikin Altherma Monobloc CA ESIE15-08B Part 4. Maintenance 2. Maintenance procedures 2.6. Draining the Domestic Hot Water tank Actions Remarks Refer to the Installation Manual of the installed DHW tank. 2.7. Anode Actions Remarks Refer to the Installation Manual of the installed DHW tank.

  • Page 138: Checking The Switch Box

    Daikin Altherma Monobloc CA ESIE15-08B Part 4. Maintenance 2. Maintenance procedures 2.9. Checking the Switch box Actions Remarks • Using an ohmmeter, check for correct operation of contactors Refer to "Component checklist - Water Circuit" on page K1M, K2M, K3M and K5M (applications with domestic hot water tank only).
  • Page 155 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. To facilitate the investigation, additional information is required.
  • Page 156 Application info Application (house, apartment, office, …): New project or refurbishment: Heat emitters (radiators / under floor heating / fan coils / …): Hydraulic layout (simple schematic): Unit / Installation info Model name: Serial numbers: Installation / commissioning date: Software version hydro PCB A1P: Software version hydro PCB A4P: Software version user interface: Software version outdoor PCB:...

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