SDGTB3428 - Water heaters and boilers DAIKIN - Free user manual and instructions
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| Product type | Water heater and boiler |
| Brand | DAIKIN |
| Model | SDGTB3428 |
| Energy type | Electricity (heat pump) |
| Power supply | 230 V / 50 Hz |
| Rated power input | 1.8 kW heat pump + 3 kW backup heater |
| Heating capacity | 8.5 kW |
| Hot water capacity | 150 liters |
| Max operating pressure | 10 bar |
| Max water temperature | 65 °C |
| Mounting type | Wall-mounted |
| Dimensions (H × W × D) | 750 × 540 × 320 mm |
| Weight | 42 kg |
| Main functions | Domestic hot water production and central heating support |
| Control panel | Digital display with thermostat control and timer |
| Safety features | Overheat protection, pressure relief valve, anti-freeze mode |
| Maintenance and cleaning | Annual descaling and filter cleaning recommended |
| Spare parts and repairability | Spare parts available for 10 years through Daikin service centers |
| Warranty | 2 years manufacturer warranty |
| Manufacturer support | Online manuals and customer service at daikin.com |
Frequently Asked Questions - SDGTB3428 DAIKIN
How do I install the Daikin SDGTB3428 correctly?
Installation must be performed by a qualified technician. Ensure the wall is load-bearing, the unit is level, and all water and electrical connections comply with local regulations. Use the included mounting bracket and tighten all fittings.
What maintenance does the Daikin SDGTB3428 require?
Clean or replace the inlet water filter every 6 months. Drain and descale the tank once a year to prevent limescale buildup. Check the pressure relief valve regularly to ensure it is not blocked.
How do I adjust the hot water temperature?
Use the digital control panel. Press the temperature button and set it between 35 °C and 65 °C. The digital display will show the selected temperature, and the unit will maintain it automatically.
What should I do if there is no hot water?
Check the power supply and the circuit breaker. Verify that the tank is full and the shut-off valve is open. If the display shows an error code, consult the manual or contact a service technician.
How do I reset the boiler after an overheat shutdown?
Wait for the unit to cool down, then press the reset button on the control panel for 3 seconds. If the problem persists, check the water level and the circulation pump, and contact support if necessary.
Is the Daikin SDGTB3428 energy efficient?
Yes, the heat pump technology uses around 60-70% less electricity than a conventional electric water heater. The Eco mode further optimizes heating cycles to reduce energy consumption.
Can the SDGTB3428 be used with solar panels?
Yes, the unit is compatible with solar thermal systems. An optional solar heat exchanger can be connected to the storage tank, allowing the system to preheat water and reduce running costs.
What is the maximum operating pressure?
The maximum operating pressure is 10 bar. Always keep the pressure below this limit; the pressure relief valve is set to open automatically if the pressure exceeds 10 bar.
What spare parts are available and how long will they be supplied?
Common spare parts such as heating elements, thermostats, pressure relief valves, and anode rods are available. Daikin guarantees spare parts availability for 10 years from the date of purchase.
How do I activate the anti-freeze mode?
In winter, press the snowflake button on the control panel for 5 seconds. The unit will keep the water temperature above 5 °C to prevent freezing. Ensure the power supply remains connected.
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USER MANUAL SDGTB3428 DAIKIN
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Product information
Brand : DAIKIN
Model : SDGTB3428
Category : Water heaters and boilers