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Wolf - CHA, CHC and FHA

Configuration Guide for Wolf CHA (07, 10, 16/20, 20/24), CHC (07, 10) and FHA (05/06, 06/07, 08/10, 11/14, 14/17) including FHA-Center variants

Written by Marija Gelmanovska

Before you start

Before you begin, make sure:

  • The heat pump is physically installed and powered on

  • The WOLF Link home/pro module is connected to the heat pump

  • The WOLF Link module and heat pump components meet the minimum EEBUS firmware requirements (see Additional Information)

  • The WOLF SmartSet App or SmartSet Portal is installed on your device

  • You have a WOLF heat pump CHA, CHC, or FHA series

Step-by-Step Instructions

1. Connect the heat pump to the network

  1. Connect the heat pump to the WOLF Link home/pro communication module

  2. Connect an Ethernet cable to the WOLF Link module

  3. Verify the connection is established by checking the LED on the Link module or in the WOLF SmartSet App

For network infrastructure requirements and troubleshooting, see Infrastructure requirements for the gateway.

2. Access the heat pump settings

  1. Open the WOLF SmartSet App and log in

  2. Navigate to
    ​Profile → System list

  3. Select the WOLF Link device

3. Enable communication via EEBUS

Configuration is carried out via the WOLF SmartSet App.

  1. Navigate to
    ​Settings → EEBUS → Communication

  2. Configure the following EEBUS settings:

    • EEBUS: enabled

  3. Click Refresh to save

Check out the WOLF commissioning video: EEBUS Aktivierung | Schnittstellenmodul Link home & Smartset App | WOLF

4. Discover the heat pump in the commissioning wizard

The heat pump is now ready for the commissioning wizard. The gateway will scan the network to find available devices, which may take a few minutes. Once complete, the heat pump will appear on the results page.

Indicate whether the heat pump's electricity is billed on a dedicated heatpump tariff or as part of household consumption. Heat pumps on a dedicated tariff are excluded from self-sufficiency optimization.

5. Connect the heat pump to the gateway

After the scan completes and the heat pump is discovered, click Next in the commissioning wizard to proceed to the EEBUS connection screen.

  1. On this screen, click Pair to initiate the EEBUS pairing process

  2. Accept the pairing on the WOLF SmartSet App

    1. Navigate to
      ​Communication → EEBUS

    2. Click Refresh and wait for the scan to finish

    3. Select the gateway from the Detected EEBUS devices and confirm the device details

    4. Complete the pairing by clicking Trust Device

    5. Wait for coupling to finish and verify the connection in Connected EEBUS-Devices

6. Configure heat pump temperature settings

For efficient control of the WOLF heat pump by the EMS, configure the heat pump temperature settings to allow sufficient flexibility. Without correct settings, EMS use cases that store surplus PV energy as heat will not work.

Set the following key parameters on the heat pump controller:

  • DHW maximum temperature: Set high enough to allow overheating of the DHW storage (for example, 60–65 °C). This enables the EMS to store surplus PV energy as heat.

  • Room temperature offset: Set a sufficient upper limit to allow the EMS to temporarily raise the heating setpoint when surplus energy is available.

For system-specific guidance and example configurations, refer to the WOLF energy management planning document (available at wolf.eu), section "Examples for heat pump parameterization with PV systems and dynamic tariffs".

Additional Information

IMPORTANT - Note on EEBUS-enabled firmware version

Currently (November 2025 until around Q2 2026), all WOLF CHA- and FHA-heat pumps require a dedicated firmware update for the EEBUS use cases. A firmware update can be requested from WOLF using [email protected].

The latest process is documented at the WOLF website, FAQ "Can I use EEBUS for existing installations?"

Prerequisites

  • WOLF Link-Modul Firmware ≥ 4.00 – you first need to perform a free OTA update to version 5.00, which can be done by specifying the Link's serial number

Minimum firmware requirements

Main Control Boards

  • CHA series (HCM-4): FW 1.90

    • Update: WOLF service technician (fee required)

    • Check version: BM-2 Menü > Anzeige > Heizgerät

  • FHA series (HCM-5): FW 1.20

    • Update: WOLF service technician (fee required)

    • Check version: BM-2 Menü > Anzeige > Heizgerät

Control and Display Modules

  • Control module (BM-2): FW 3.30

    • Update: Specialist via microSD card (software at wolf.eu)

    • Check version: BM-2 Display (Ein- und Ausschalten)

  • Display module (AM): FW 2.00

    • Update: Hardware replacement at customer's premises (fee required)

    • Check version: AM Display (Ein- und Ausschalten)

FAQ

Why isn't the heat pump appearing in the commissioning wizard?

Check that the WOLF Link module is connected via Ethernet and that EEBUS is enabled in the SmartSet App (Settings → EEBUS → Communication slide switch). Verify that you've clicked Refresh after enabling EEBUS. Ensure your heat pump has the minimum required firmware versions. Restart the gateway and wait for the network scan to complete.

How do I update the firmware of the heat pump?

Firmware updates for WOLF heat pumps require different approaches depending on the component. Main control boards (HCM-4, HCM-5) require a WOLF service technician. Control modules (BM-2) can be updated via microSD card. Display modules (AM) require hardware replacement.
For detailed update instructions, refer to the official WOLF documentation or contact WOLF service.

Do I need a special firmware version for EEBUS?

Yes. Currently (November 2025 until Q2 2026), all WOLF CHA- and FHA-heat pumps require a dedicated firmware update for EEBUS use cases. Request this update from WOLF at [email protected].

What does "Trust Device" mean in the SmartSet App?

The Trust Device button confirms that you authorize the gateway to communicate with the WOLF heat pump via EEBUS. This establishes a secure connection between the two devices.

Why are temperature settings important for EMS control?

Temperature settings determine the flexibility the EMS has to optimize heat pump operation. Without sufficient temperature flexibility, the EMS cannot "store" PV surplus energy by overheating the DHW storage, which limits optimization potential.

Supported models

CHA Series

  • CHA-07

  • CHA-10

  • CHA-16/20

  • CHA-20/24

CHC Series

  • CHC-07

  • CHC-10

FHA Series

  • FHA-05/06

  • FHA-Center-05/06

  • FHA-06/07

  • FHA-Center-06/07

  • FHA-08/10

  • FHA-Center-08/10

  • FHA-11/14

  • FHA-Center-11/14

  • FHA-14/17

  • FHA-Center-14/17

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