Bosch Tronic 4000 T EBP Series

1 Explanation of Symbols and Safety Instructions

1.1 Explanation of Symbols

Warnings use signal words to indicate the type and seriousness of the risk if safety measures are not taken. The following signal words are used:

• DANGER: Indicates that severe or life-threatening personal injury will occur.
• WARNING: Indicates that severe to life-threatening personal injury may occur.
• CAUTION: Indicates that minor to medium personal injury may occur.
• NOTICE: Indicates that material damage may occur.

Important information is indicated by an info symbol [i].

Additional symbols:

• [step]: Indicates a step in an action sequence.
• [reference]: Indicates a reference to a related part in the document.
• [list-item]: Indicates a list entry.
• [sub-list-item]: Indicates a list entry (second level).

1.2 General Safety Instructions

These instructions are for users and qualified installers. Read and retain all operating and installation instructions. Observe all safety and warning instructions, and follow national/regional regulations and guidelines. Document all work performed.

Use according to regulations: The appliance is designed for heating/storing potable water. Observe all country-specific regulations for potable water. Use only in closed systems. Any other use is unsuitable and voids manufacturer responsibility.

Installation: Must be carried out by an authorized contractor. Electrical installation requires an omnipolar disconnecting device (30 mA differential circuit breaker and earthed) per local rules, complying with IEC 60364-7-701 where applicable. Install in a frost-free facility. Maximum altitude 3000 meters. Hydraulic connections must be made and checked for tightness before electrical connections. Turn off power before installation.

Electrical Work: Must be carried out by qualified electricians. Isolate all poles and secure against reconnection before starting. Ensure mains voltage is disconnected. Observe wiring diagrams of other components.

Assembly, Modifications: Only by authorized contractors. Never obstruct the pressure relief valve vent pipe. The drain line must be installed downwards in a frost-free location and remain open to the atmosphere. Water may be released from the pressure relief valve discharge pipe during heating.

Maintenance: Only by authorized contractors. Always switch off power before maintenance. User is responsible for safety and environmental compatibility. Use only original spare parts. Damaged power cables must be replaced by the manufacturer, service, or qualified professionals.

Inspection and Maintenance: Regular inspection and maintenance are crucial for safe and environmentally compatible operation. Annual maintenance contracts are recommended. Work must be done by approved contractors. Eliminate defects immediately. Deviations from instructions must be assessed by a specialist.

Handover to User: Explain operation, especially safety aspects. Point out that conversions/repairs must be by licensed contractors. Emphasize the need for inspection and preventative maintenance. Hand over instructions to the user.

Safety of Electrical Devices: In accordance with EN 60335-1: Children aged 8+ and persons with reduced capabilities can use the appliance if supervised and instructed, understanding the risks. Children must not play with the appliance. Cleaning/maintenance by children requires supervision. Damaged power cables must be replaced by the manufacturer, service, or qualified personnel.

2 Standards, Regulations and Directives

Observe all regulations and standards during installation and operation, including those for electrical installation, connection to the supply network, remote signaling/wireless networks, and national standards.

3 About the Appliance

3.1 Declaration of Conformity

The product complies with applicable EU legislation, indicated by the CE marking. The full text is available at www.bosch-climate.gb.

3.2 Use according to the Provisions of Applicable Regulations

The appliance is designed for heating and storing potable water. Observe all country-specific regulations, guidelines, and standards for potable water. Install only in closed environments. Any other use is non-compliant and voids manufacturer responsibility.

3.3 Description of the DHW Tank

• Enamel-coated steel storage tank conforming to European standards.
• Built to withstand high pressures.
• Outer material: sheet steel and plastic.
• Easy operation.
• CFC-free polyurethane insulation material.
• Magnesium galvanic anode for corrosion protection.

3.4 Accessories

Figure 1 shows accessories: [1] Screws (2x), [2] Washers (2x), [3] Wall plugs (2x), [4] Galvanic insulation (2x), [5] Pressure relief valve (8 bar).

3.5 Dimensions

Table 2 provides dimensions in mm for wall-hung, vertical assembly of the 50, 80, and 100-liter models. Figure 2 illustrates these dimensions.

3.6 Appliance Design

Figure 3 illustrates the appliance components: [1] Tank, [2] CFC-free polyurethane insulating layer, [3] Heating element, [4] Control and safety thermostat, [5] Cold water inlet (male), [6] Hot water outlet (male), [7] Galvanic isolator, [8] Magnesium anode.

3.7 Transportation and Storage

Transport and store the appliance in a dry, frost-free location. Handle with care, do not drop. Use original packaging and suitable transport means. Remove from packaging only at the installation location.

4 User Instructions

The appliance features a digital display. Allow the water to heat to the selected temperature before first use.

4.1 Control Panel

Figure 4 shows the control panel: [1] Key to select operating modes, [2] Display controller assembly, [3] Key to increase temperature/level, [4] Key to decrease temperature/level.

4.2 Display Controller Assembly

Figure 5 shows the display controller assembly: [1] HOLIDAY mode, [2] MANUAL mode, [3] SMART mode, [4] Temperature/comfort level, [5] Fault mode, [6] Calendar, [7] Display for holidays/error codes, [8] Control panel lock.

4.3 Before Commissioning the Appliance

CAUTION: Risk of damage to the appliance. Initial commissioning must be done by a specialized technician.

NOTICE: Risk of damage to the appliance. Never turn on the appliance without water, as this can damage the heating element.

4.4 Switching the Appliance On / Off

On: Connect to the grounded electrical connection socket.

Off: Disconnect from the electrical connection socket.

4.5 Operating Mode:

The active mode is shown on the display. To change modes, press the mode selection key. The change is immediate.

4.5.1 Operating Mode SMART: Operates automatically, learning consumption habits over a week to adjust hot water production. Guarantees minimum availability based on selected comfort level. Water temperature is initially 70°C, then adjusts. SMART mode must be re-selected after power loss.

4.5.2 Manual Operating Mode: Maintains water at a selected temperature. Select by pressing the key until Manual mode appears.

4.5.3 Vacation Operating Mode: Keeps water at a minimum level to prevent freezing. Active for selected days, then returns to previous mode. Set vacation days using the [7] display.

4.5.4 Reset Operating Mode: Clears all settings and consumption habits, returning to factory presets. Use after solving errors. Press and hold [g] and [h] keys simultaneously for >3s.

4.5.5 Selecting the Hot Water Temperature:

Maximum temperature is 70°C. CAUTION: Risk of scalding, especially for children and elderly. Always check water temperature manually. The display is approximate; actual temperature can exceed 70°C briefly. Hot water outlet pipe can also be hot.

Table 3 shows scalding times at different temperatures. Table 4 shows temperature levels for Manual and SMART modes.

• Increase Level: Press [g] key.
• Decrease Level: Press [h] key.
• Check Selected Level: Press and release [g] or [h]; segments flash.
• Check Internal Temperature: Observe non-flashing segments on display.

4.5.6 Control Panel Lock: Locks the control panel. Press and hold [g] and [h] keys simultaneously for >3s to lock/unlock.

4.5.7 Activating the Pressure Relief Valve: Activate monthly to prevent calcification. Water may drip from the outlet; it must not be closed. Drain to the sewer. WARNING: Risk of scalding. Open hot water tap and check temperature before opening the valve. Wait for temperature to drop.

Procedure: Disconnect power, close water shut-off valve, open hot water tap, open pressure relief valve (Figure 6). Check function, open water shut-off valve, reconnect power.

4.6 Draining the Appliance:

CAUTION: Risk of property damage from freezing. Place a container to collect water. To drain, close shut-off valve, open hot water tap, open pressure relief valve, wait for complete drainage.

4.7 Cleaning the Casing: Use a damp cloth and mild detergent. Do not use abrasive or caustic cleaners.

4.8 Error Codes on the Display: An error code flashes on the screen for abnormal operation. Refer to Table 7 on page 42 for details. Figure 7 shows an example error.

4.9 Thermal Disinfection Function: Reduces Legionella risk by heating water above 65°C. The appliance monitors temperature and heats automatically if unsafe conditions arise.

4.10 Draining After Long Inactivity: If unused for over 3 months, drain the appliance, refill, and reconnect power.

5 Installation (Only for Approved Contractors)

5.1 Important Information: Installation, electrical connection, and commissioning must be done by qualified experts. Observe all regulations and technical guidelines. CAUTION: Risk of appliance damage. Remove from packaging only at installation site. Never rest on water connections. Handle with care. Comply with IEC 60364-7-701. CAUTION: Risk of heating element damage. Connect water and fill the appliance first, then connect electrically.

Water Quality: For domestic DHW heating. Water treatment recommended for hard water areas. Potable water parameters must be within limits specified in Table 5.

5.2 Choose the Installation Site:

CAUTION: Risk of appliance damage. Choose a wall strong enough to support the appliance when full. Install according to guidelines, away from heat sources, elements, or corrosive environments. Ensure room temperature is above 0°C. Allow easy access for maintenance. Do not install above 3000m altitude. Ensure adequate ventilation if ambient temperature exceeds 35°C. Install near the most used hot water tap to reduce heat loss and wait times. Ensure space for magnesium anode removal.

Protection Zone 1: Do not install within Protection Zone 1. Install outside this zone.

CAUTION: Risk of electric shock. Connect to the main power supply using an earth wire.

Figure 8 illustrates the protection zone (60 cm clearance on sides, 225 cm vertical).

5.3 Installing the Appliance:

The appliance must be fixed to the wall. NOTICE: Use screws and supports rated for the appliance's full weight and suitable for the wall type.

Figure 9 shows vertical assembly. Table 6 provides dimensions (A) for vertical wall-hung installation for 50, 80, and 100-liter models.

Recommendation: Flush the system before installation. Ensure cold and hot water pipes are clearly identified.

5.4 Water Connection:

NOTICE: Risk of corrosion. Use galvanic isolators on water connections to prevent galvanic currents. Install a filter in the water inlet if water contains suspended matter. Use PEX pipes with a thermostatic control on the outlet. Pipes must be rated for 10 bar (1 MPa) and 100°C.

Figure 10 shows connections: [1] Cold water inlet (right), [2] Hot water outlet (left).

Recommendation: Flush the system before installation to prevent debris from causing blockages. Ensure cold and hot water pipes are clearly identified.

Use suitable connection accessories.

5.5 Pressure-Relief Valve: Install on the water inlet. WARNING: Never obstruct the vent pipe or install accessories between the valve and the inlet. If inlet pressure is 1.5-3 bar, a pressure reducer is not needed. If pressure exceeds this, install a pressure reducer (Figure 11 [4]). The pressure relief valve opens at >8 bar, requiring a drain. Install an expansion vessel (Figure 11 [7]) to reduce valve opening frequency; its volume should be 5% of the appliance's volume. Install a check valve upstream to prevent pressure changes. If freezing risk exists, disconnect power and drain the appliance (Section 4.6).

6 Electrical Connection (Only for Approved Contractors)

DANGER: Risk of electric shocks. Disconnect power before any work. All internal safety and control equipment is factory-fitted.

WARNING: Lightning strike risk. The device must have a separate connection in the distribution box, protected by a 30-mA fault current circuit breaker and earth lead. Consider lightning protection in high-risk areas.

6.1 Connecting the Power Cable: Connect according to applicable electrical system regulations. An earth lead must be present. Use a socket with an earth lead.

6.2 Replacing the Electric Power Cable: If damaged, replace with an original spare part. Disconnect power, loosen cover flap screws, release terminals, remove and replace cable, re-attach connections, tighten cover, connect to socket, and check operation.

7 Maintenance (Only for Approved Specialists)

Inspection, Maintenance, Repairs: Must be carried out by competent, authorized persons using only original spare parts. The manufacturer is not responsible for damage from non-original parts.

Customer Recommendation: Annual service by a competent technician is recommended for economy, safety, and reliability.

7.1 Information for Users:

7.1.1 Cleaning: Use a soft cloth and mild detergent. Do not use abrasive, caustic, or solvent-based cleaners.

7.1.2 Checking the Pressure Relief Valve: Check for water leaks from the vent pipe during heating. Never obstruct the vent pipe.

7.1.3 Pressure Relief Valve: Open manually at least monthly (Figure 6). CAUTION: Ensure discharged water poses no risk.

7.1.4 Maintenance and Repair: Customer is liable for regular maintenance and testing by service or approved contractor.

7.2 Periodic Maintenance Works: CAUTION: Disconnect power and close water shut-off valve before work. Use only original spare parts. Replace seals with new ones.

7.2.1 Functional Check: Verify all components function correctly.

7.3 Protection Anode: The magnesium anode protects the tank from corrosion. Check annually or biennially and replace if necessary, depending on water quality (Table 5). Neglecting the anode can cause corrosion damage. It is forbidden to operate without an anode; warranty is void without it.

Procedure for anode check/replacement: Disconnect power, empty appliance, remove cover, disconnect thermostat cables, loosen flange screws, remove flange, check/replace anode.

7.4 Safety Thermostat: Automatically cuts power if water temperature exceeds safety limits. DANGER: Risk of electric shock. Reset by authorized personnel only after eliminating the cause. Procedure: Disconnect power, remove cover [1], check connections, press safety device button [2] (Figure 12).

If the safety thermostat activates frequently, ensure more regular cleaning of the electric heater.

7.5 Inside of the Tank: High temperatures and water characteristics can cause scale buildup on the heating element and detritus in the tank, affecting water quality, power consumption, functionality, and lifespan. Recommendations: Clean tank interior, clean/descale/replace heating element, inspect magnesium anode, replace flange seal.

7.6 Restarting After Maintenance Work: Tighten all water connections and check for leaks. Switch on the appliance.

8 Problems

DANGER: Risk of electric shock. Disconnect power before work. Installation, repairs, and maintenance must be by qualified persons.

Table 7 lists common problems and solutions:

1) Solutions must only be carried out by specialised and qualified persons.

9 Technical Information

9.1 Technical Data

The appliance complies with Directives 2014/35/EC and 2014/30/EC.

9.2 Product Data for Energy Consumption:

Data based on Regulations (UE) 812/2013 and (UE) 814/2013.

9.3 Wiring Diagram:

Figure 13 shows the connection diagram.

10 Environmental Protection and Disposal

Bosch Group prioritizes environmental protection. Products are designed for quality, economy, and environmental safety, adhering strictly to legislation. Packaging materials are environmentally compatible and recyclable. Used appliances contain valuable, recyclable materials. Electronic and electrical appliances must be disposed of responsibly at designated collection points to minimize environmental and health risks, and to preserve natural resources. More information is available at www.weee.bosch-thermotechnology.com/.

11 Data Protection Notice

Bosch Thermotechnology Ltd. processes product and installation information for functionality, product surveillance, safety, warranty, and analysis. Data may be transferred to external service providers or Bosch affiliated enterprises, potentially outside the EEA, with appropriate data protection. For rights and inquiries, contact the Data Protection Officer or privacy.ttgb@bosch.com. Further information can be obtained via QR code.

12 Installation Instructions

Figure 12 shows installation parts: [1] 27mm fitting (1x), [2] 24mm fitting (1x), with quantities indicated. PTFE tape is also shown.