Daikin R32 Split Series Installer's Reference Manual
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Daikin R32 Split Series Installer's Reference Manual

Domestic hot water tank
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R32 Split series – Domestic hot water tank
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Summary of Contents for Daikin R32 Split Series

  • Page 1 Installer reference guide R32 Split series – Domestic hot water tank https://daikintechnicaldatahub.eu EKHWET90BAV3 EKHWET120BAV3...

  • Page 2: Table Of Contents

    9 Electrical installation About connecting the electrical wiring .......................... 45 9.1.1 Precautions when connecting the electrical wiring..................45 9.1.2 Guidelines when connecting the electrical wiring..................46 Installer reference guide EKHWET90~120BAV3 R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 3 To display the help text in case of a malfunction ..................103 14.4.2 Error codes: Overview ............................ 103 15 Technical data 15.1 Piping diagram: Indoor unit ............................108 15.2 Wiring diagram: Indoor unit ............................109 EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 4 Table of contents 16 Glossary 17 Field settings table Installer reference guide EKHWET90~120BAV3 R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 5: About This Document

    The original documentation is written in English. All other languages are translations. Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required).

  • Page 6: Meaning Of Warnings And Symbols

    WARNING: FLAMMABLE MATERIAL CAUTION Indicates a situation that could result in minor or moderate injury. NOTICE Indicates a situation that could result in equipment or property damage. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 7: Installer Reference Guide At A Glance

    Electrical installation What to do and know to install the electrical components of the system, including information on how to prepare for an installation EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 8 Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 9: General Safety Precautions

    Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin. WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).

  • Page 10: Installation Site

    WARNING During tests, NEVER pressurise the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit). EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 11 Charge the liquid refrigerant as follows: Then A siphon tube is present Charge with the cylinder upright. (i.e., the cylinder is marked with "Liquid filling siphon attached") EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 12: Water

    If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 13 Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will damage the head and make proper tightening impossible. ▪ Over-tightening the terminal screws may break them. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 14 ON and OFF while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 15: Specific Installer Safety Instructions

    WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. Opening and closing the units (see "7.2 Opening and closing the...
  • Page 16 675. Do NOT vent these gases into the atmosphere. ▪ When charging refrigerant, ALWAYS use protective gloves and safety glasses. Electrical installation (see "9 Electrical installation" [  45]) DANGER: RISK OF ELECTROCUTION EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 17 CAUTION To guarantee the unit is completely earthed, ALWAYS connect the booster heater power supply and the earth cable. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 18 Water coming out of the valve may be very hot. WARNING If the internal wiring is damaged, it has to be replaced by the manufacturer, its service agent or similarly qualified persons. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 19 MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 20: About The Box

    Bring the packed unit as close as possible to its final installation position to prevent damage during transport. ▪ Prepare the path in advance along which you want to bring the unit to its final installation position. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 21: Indoor Unit

    Some accessories are located inside the unit. For more information on opening the unit, see "7.2.2 To open the indoor unit" [  36]. a WLAN cartridge b General safety precautions c Operation manual d Indoor unit installation manual EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 22: About The Units And Options

    PC. It gives the possibility to update the software of the indoor unit. For installation instructions, see: ▪ the installation manual of the PC cable ▪ "10.1.2 To connect the PC cable to the switch box" [  54] EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 23: Application Guidelines

    6.2 Setting up the domestic hot water tank 6.2.1 System layout – Standalone DHW tank 89°C (*) A Domestic hot water a Cold water IN b Hot water OUT EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 24: Selecting The Volume And Desired Temperature For The Dhw Tank

    Then V =307 l DHW consumption (equivalent hot water volume at 40°C) Required DHW tank volume if only heated once DHW tank temperature Cold water temperature EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 25: Setup And Configuration - Dhw Tank

    Allows you to limit the power consumption of the entire heat pump system (sum of outdoor unit, indoor unit and booster heater) with one permanent setting. ▪ Limitation of power in kW or current in A. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 26: Permanent Power Limitation

    Therefore, the booster heater is turned OFF first. The system limits power consumption in the following order: Turns OFF booster heater. Limits the outdoor unit. Example Power consumption is limited as follows: EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 27 Produced heat Consumed energy A Outdoor unit B Booster heater a Limited outdoor unit operation b Full outdoor unit operation c Booster heater turned ON EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 28: Unit Installation

    The indoor unit is designed for indoor installation only and for the following ambient temperatures: Domestic hot water production: 5~35°C ▪ Mind the following spacing installation guidelines: EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 29: Special Requirements For R32 Units

    Joints made in installation between parts of refrigerant system shall be accessible for maintenance purposes. WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons. EKHWET90~120BAV3 Installer reference guide R32 Split series –...
  • Page 30 Unit installation NOTICE ▪ Protect pipework from physical damage. ▪ Keep the pipework installation to a minimum. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 31: Installation Patterns

    (one at the bottom, one at the top) between the room and the outside to ensure natural ventilation. The room must be protected from frost. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 32 ▪ Must be ≥50% of A (minimum bottom opening area). nv-min Min. 50% ▪ Must be ≥1.5 m from the floor. of A nv-min (≥A nv-min EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 33 4,35 4,09 3,87 12,66 10,51 8,52 7,04 6,04 5,57 5,18 4,83 4,53 4,26 4,03 13,70 11,37 9,21 7,61 6,40 5,80 5,38 5,02 4,71 4,43 4,19 EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 34 Floor area of room A (m²) [! NOT room A + room B !] 2,00 4,00 6,00 8,00 10,00 12,00 14,00 1.23 1.45 1.65 1.85 2.05 2.25 EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 35 Must be ≥50% of A (minimum bottom opening area as specified in nv-min the table below). ▪ Must be ≥1.5 m from the floor of the unoccupied room. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 36: Opening And Closing The Units

    1 Remove the bottom cover to be able to guide the cables to the switch box. 6× 2 Remove the top cover. 4× 3 Remove the switch box cover. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 37: To Close The Indoor Unit

    7.3.3 To install the indoor unit 1 Install 2 plugs into the wall and insert (but not completely) 2 bolts with washers into the plugs. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 38 ▪ Lower the bracket on the back of the unit over the 2 bolts. ▪ Tighten the 2 bolts. ▪ Make sure the unit is fixed properly. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 39: Piping Installation

    The stop valves are factory open and the refrigerant circuit of the tank is NOT charged. 1 Connect the liquid stop valve from the outdoor unit to the refrigerant liquid stop valve of the indoor unit. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 40: Preparing Water Piping

    Piping length. It is recommended to avoid long runs of piping between the domestic hot water tank and the hot water end point (shower, bath,…) and to avoid dead ends. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 41 ▪ Domestic hot water tank – Disinfection. For the disinfection function of the domestic hot water tank, see "10.6.2 Tank" [  70]. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 42: Connecting Water Piping

    Deformation of the piping can cause malfunctioning of the unit. 1 Connect the domestic hot water in and out pipes to the indoor unit. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 43: To Connect The Recirculation Piping

    1 Open every hot water tap in turn to purge air from the system pipe work. 2 Open the cold water supply valve. 3 Close all water taps after all air is purged. 4 Check for water leaks. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 44 Piping installation 5 Manually operate the field-installed pressure relief valve to ensure a free water flow through the discharge pipe. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 45: Electrical Installation

    WARNING ALWAYS use multicore cable for power supply cables. INFORMATION Also read the precautions and requirements in the "2  General safety precautions" [  9]. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 46: Guidelines When Connecting The Electrical Wiring

    ▪ Use the following methods for installing wires: Wire type Installation method Single-core wire AA´ A´ a Curled single-core wire b Screw c Flat washer EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 47: About Electrical Compliance

    1 Open the following (see "7.2.2 To open the indoor unit" [  36]): 2 Connect the main power supply. Interconnection cable Wires: (3+GND)×1.5 mm² (= main power supply) — EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 48: To Connect The Booster Heater Power Supply

    [9.4]Booster heater WARNING The booster heater MUST have a dedicated power supply and MUST be protected by the safety devices required by the applicable legislation. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 49 To guarantee the unit is completely earthed, ALWAYS connect the booster heater power supply and the earth cable. Connect the booster heater power supply as follows: Q1DI a Booster heater power supply cable b Field wiring EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 50: To Connect The Wlan Cartridge (Delivered As Accessory)

    WARNING In order to keep IPX3, the rubber part must be correctly fixed after WLAN installation. See the installer reference guide for more information. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 51: Configuration

    To restart the configuration wizard, go to Installer settings > Configuration wizard. To access Installer settings, see "10.1.1 To access the most used commands" [  52]. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 52: To Access The Most Used Commands

    The Installer pin code is 5678. Additional menu items and installer settings are now available. Installer 5678 Advanced user pin code The Advanced user pin code is 1234. Additional menu items for the user are now visible. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 53 5 Turn the right dial to modify the value from 23 to 3. 6 Press the left dial to confirm the new setting. 7 Press the center button to go back to the home screen. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 54: To Connect The Pc Cable To The Switch Box

    You can find a short overview of the settings in the configuration here. All the settings can also be adjusted in the settings menu (use the breadcrumbs). For the setting… Refer to… Language [7.1] Time/date [7.2] EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 55: Possible Screens

    Eco setpoint [5.3] Reheat setpoint [5.4] Hysteresis [5.9] and [5.A] Operation mode [5.G] 10.3 Possible screens 10.3.1 Possible screens: Overview The most common screens are as follows: EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 56: Home Screen

    26 Feb 2019 22:19 Possible actions on this screen Go through the list of the main menu. Go to the main menu screen. Enable/disable breadcrumbs. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 57: Main Menu Screen

    User profile Operation Tank User settings Information a Selected submenu Possible actions on this screen Go through the list. Enter the submenu. Enable/disable breadcrumbs. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 58: Menu Screen

    Go through the list. Enter the submenu/setting. 10.3.5 Setpoint screen The setpoint screen is displayed for screens describing system components that need a setpoint value. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 59: Detailed Screen With Values

    Values c Selected setting and value Possible actions on this screen Go through the list of settings. Change the value. Go to the next setting. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 60: Preset Values And Schedules

    Example: In [7.4.2] User settings > Quiet > Schedule (weekly schedule for when the unit has to use which quiet mode level), you can use the following system-defined preset values: Quiet/More quiet/Most quiet. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 61: Using And Programming Schedules

    Note: In Schedule + reheat mode, the system also takes the user-defined preset value [5.4] Reheat setpoint into account. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 62: Schedule Screen: Example

    4 Copy the schedule to the other weekdays. 5 Program the schedule for Saturday and copy it to Sunday. To go to the schedule 1 Go to [5.5]: Tank > Schedule. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 63 Delete Edit Copy 3 Select OK to confirm. To program the schedule for Monday 1 Select Monday. User defined 2 Select Edit. Delete Edit Copy EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 64 Copy Result: Next to the copied day, "C" is displayed. 3 Select Tuesday. User defined 4 Select Paste. Delete Edit Copy Paste Result: User defined EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 65: Weather-Dependent Curve

    Because it reacts more quickly, it prevents high rises and drops of the water temperature at tap points. Advantage Weather-dependent operation reduces energy consumption. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 66: 2-Points Curve

    : Domestic hot water tank Possible actions on this screen Go through the temperatures. Change the temperature. Go to the next temperature. Confirm changes and proceed. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 67: Slope-Offset Curve

    Examples of outdoor ambient temperature Y1, Y2, Y3, Examples of desired tank temperature. The icon corresponds to the heat emitter for that zone: ▪ : Domestic hot water tank EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 68: Using Weather-Dependent Curves

    At regular outdoor At cold outdoor Slope Offset temperatures … temperatures … Cold ↑ — ↓ — Cold ↓ ↑ Cold Cold — ↑ EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 69: Settings Menu

    [0]  Malfunctioning. Press more information about the error. [0] Malfunctioning User profile Operation Malfunctioning Tank User settings EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 70: Tank

    You cannot wait for the next scheduled action to heat up the storage tank. Then you can activate DHW powerful operation. Advantage: The storage tank is immediately heated up to the Comfort setpoint. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 71 The domestic hot water can be prepared in 3 different ways. They differ from each other by the way the desired tank temperature is set and how the unit acts upon it. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 72 ▪ 1: Monday ▪ 2: Tuesday ▪ 3: Wednesday ▪ 4: Thursday ▪ 5: Friday ▪ 6: Saturday ▪ 7: Sunday [5.7.3] [2‑02] Start time EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 73 When the Schedule only mode is selected, it is recommended to program an Eco action 3 hours before the scheduled start-up of the disinfection function to preheat the tank. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 74 If Reheat setpoint is outside operation range of the outdoor unit, then the hysteresis will refer to the the highest temperature achievable by heat pump operation. Setpoint mode Code Description [5.B] Setpoint mode: ▪ Fixed ▪ Weather dependent EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 75 35°C~[6‑0E]°C Margin In domestic hot water operation, the following hysteresis value can be set for the heat pump operation: EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 76 The maximum heat pump temperature depends on the ambient temperature. For more information, see the operation range. WD curve type There are 2 methods to define the weather-dependent curves: ▪ 2-points (see "10.5.2 2-points curve" [  66]) EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 77 When ambient temperature and/or target temperature is outside the operation range of outdoor unit, booster heater is also allowed to operate, refer to "Operation" [  83]. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 78: User Settings

    During your holiday, you can use the holiday mode to deviate from your normal schedules without having to change them. While holiday mode is active, domestic hot water operation will be turned off. Anti-legionella operation will remain active. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 79 If enabled by the installer, the user can program a quiet mode schedule. INFORMATION If the outdoor temperature is below zero, we recommend to NOT use the most quiet level. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 80 2 Define the restrictions (time + level) to be used before midday (AM): ▪ [7.4.4.2] AM Restricted time Example: From 9 a.m. to 11 a.m. ▪ [7.4.4.3] AM Restricted level Example: More quiet EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 81: Information

    [8.A] Reset Dealer information The installer can fill in his contact number here. Code Description [8.3] Number that users can call in case of problems. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 82: Installer Settings

    User profile [9.5] Emergency [9.9] Power consumption control [9.E] Auto restart [9.F] Power saving function [9.G] Disable protections [9.I] Overview field settings [9.N] Export MMI settings EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 83 Code Description [9.4.4] [4-03] Defines the operation permission of the booster heater depending on ambient, domestic hot water temperature or operation mode of heat pump. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 84 When Emergency is set to Automatic and a heat pump failure occurs, the booster heater in the tank automatically takes over the domestic hot water production. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 85 3 kW~20 kW Sensors Averaging time The average timer corrects the influence of ambient temperature variations. The weather-dependent setpoint calculation is done on the average outdoor temperature. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 86 Protective functions The unit is equipped with the following protective function: ▪ Tank disinfection [2-01] Code Description [9.G] Disable protections: ▪ 0: No ▪ 1: Yes EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 87: Commissioning

    2 On the user interface, go to [9.N] Export MMI settings. 3 Select OK. 4 Remove the USB memory stick. — 10.6.6 Commissioning Overview The following items are listed in the submenu: EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 88: User Profile

    Restriction: WLAN settings are only visible when a WLAN cartridge is inserted in the user interface. Overview The following items are listed in the submenu: EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 89 Mode: Turn AP mode ON (= WLAN adapter active as access point) or OFF. Code Description [D.1] Enable AP mode: ▪ ▪ Reboot: Reboot the WLAN cartridge. Code Description [D.2] Reboot the gateway: ▪ Back ▪ EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 90 Connected to [WLAN_SSID] Cloud connection: Read out the status of the connection to the cloud. Code Description [D.6] Cloud connection: ▪ Not connected ▪ Connected EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 91: Menu Structure: Overview User Settings

    (**) Only accessible by installer (***) Only applicable when WLAN is installed INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 92: Menu Structure: Overview Installer Settings

    Power consumption control Type Limit Priority heater (*) Can NOT be adjusted INFORMATION Depending on the selected installer settings and unit type, settings will be visible/ invisible. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 93: Commissioning

    11 Commissioning NOTICE General commissioning checklist. Next to the commissioning instructions in this chapter, a general commissioning checklist is also available on the Daikin Business Portal (authentication required). The general commissioning checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during commissioning and hand-over to the user.

  • Page 94: Checklist Before Commissioning

    The stop valves (gas and liquid) on the outdoor and indoor units are fully open. The domestic hot water tank is filled completely. 11.4 Checklist during commissioning To perform a test run. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 95: Operation Test Run

    Conditions: Make sure all operation is disabled. Go to [C]: Operation and turn off Tank operation. 1 Set the user permission level to Installer. See "To change the — user permission level" [  52]. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 96 To stop the test run manually: — 1 In the menu, go to Stop test run. 2 Select OK to confirm. Possible actuator test runs ▪ Booster heater test EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 97: Hand-Over To The User

    Show the user what to do for the maintenance of the unit. ▪ Explain the user about energy saving tips as described in the operation manual. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 98: Maintenance And Service

    13.2.1 Yearly maintenance indoor unit: overview ▪ Pressure relief valve of the domestic hot water tank ▪ Switch box ▪ Booster heater of the domestic hot water tank EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 99: Yearly Maintenance Indoor Unit: Instructions

    If corrosion affects more than 2/3 of the anode surface, please replace it. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 100: To Drain The Domestic Hot Water Tank

    1 Remove the water inlet connection, the water will flow out of the tank. a DHW – hot water OUT (screw connection, ½”) b DHW – cold water IN (screw connection, ½”) EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 101: Troubleshooting

    MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 102: Solving Problems Based On Symptoms

    This should be done by a licensed installer or by your local dealer. This chapter gives you an overview of most possible error codes and their descriptions as they appear on the user interface. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 103: To Display The Help Text In Case Of A Malfunction

    Too long DHW heat-up time required C4-00 Heat exchanger temperature sensor problem C5-00 Heat exchanger thermistor abnormality E1-00 OU: PCB defect E3-00 OU: Actuation of high pressure switch (HPS) EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 104 OU: Malfunction of inverter radiating fin temperature rise L5-00 OU: Inverter instantaneous overcurrent (DC) L8-00 Malfunction triggered by a thermal protection in the inverter PCB P1-00 Open-phase power supply imbalance EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 105 Eco action 3 hours before the scheduled start-up of the disinfection function to preheat the tank. INFORMATION Error AJ-03 is reset automatically from the moment there is a normal tank heat-up. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 106 A malfunctioning booster heater will have an impact on energy metering and power consumption control. INFORMATION The user interface will display how to reset an error code. EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 107: Technical Data

    Technical data 15 Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin Business Portal (authentication required). In this chapter 15.1...

  • Page 108: Piping Diagram: Indoor Unit

    Domestic hot water – cold water in R3T Thermistor heat exchanger – Liquid pipe b1 Liquid stop valve R5T Tank thermistor b2 Gas stop valve c Booster heater EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...

  • Page 109: Wiring Diagram: Indoor Unit

    Q1DI Earth leakage circuit breaker Power supply transformer Booster heater power supply terminal strip client Booster heater power supply terminal strip X*, X*A, X*B Connector EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 110 BSH should be foreseen supply for the booster heater should be outside the unit foreseen outside the unit. (4) Switch box layout (4) Switch box layout Switch box EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 111 X5M: 1-2-3-earth 4 core INDOOR UNIT X2M: 1-2-3-earth booster heater power supply (1.2 kW): 3 core 230 V + earth X8M: L-N + earth (F2B) EKHWET90~120BAV3 Installer reference guide R32 Split series – Domestic hot water tank 4P680077-1 – 2021.11...
  • Page 112 Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation.
  • Page 113 Field settings table Applicable indoor units EKHWET90BAV3 EKHWET120BAV3 4P688157-1 - 2021.11...
  • Page 114 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value Tank [6-0A] Comfort setpoint 30~[6-0E]°C, step: 1°C 50°C [6-0B] Eco setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C [6-0C] Reheat setpoint 30~min(50, [6-0E])°C, step: 1°C 45°C [6-0D]...
  • Page 115 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 9.5.1 [4-06] Emergency 0: Manual 1: Automatic └─ Power consumption control 9.9.1 [4-08] Power consumption control 0: No limitation 1: Continuous 9.9.2 [4-09]...
  • Page 116 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [7-00] Domestic hot water booster heater overshoot temperature. 0~4°C, step: 1°C 0°C [7-01] Domestic hot water booster heater hysteresis. 2~40°C, step: 1°C 2°C [8-03]...
  • Page 120 4P680077-1 2021.11 Verantwortung für Energie und Umwelt...

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