The foundation where boiler will be standing needs to be level and flat. Proper water need to be filled into the Buderus boiler system. Water present in the heating system is the heat transferer. Depending on its purpose, water can be divided into different groups: heating water is the medium contained within your heating system, fill water is medium used for first system filling- before it is commissioned.
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The foundation where boiler will be standing needs to be level and flat. Proper water need to be filled into the Buderus boiler system. Water present in the heating system is the heat transferer.
Depending on its purpose, water can be divided into different groups: heating water is the medium contained within your heating system, fill water is medium used for first system filling- before it is commissioned. The pre-treated water normally used for the system topping is called- make up water. It is very important that the water keeps high quality at all times. Any water contains substances like calcium hydrogen-carbonate which is influencing the heating system functioning. Annual check is required in order to verify if the water quality is good enough and if not make-up water needs to be added.
Usage of proper water results in economical system usage as well as its energy efficiency and operational reliability. In order to assure proper economical functionality low fuel consumption and high level operational reliability your boiler should be serviced annually. During the annual service your boiler will be cleaned, used parts will be replaced and the whole system will be refilled with make up water and air vented. Detailed information about faults meaning can be found in the tables below.
We recommend to use those tables for proper communication with Buderus customer service or boiler service engineer. Two display codes will also be shown. On the BC10 basic controller level 4 can only be called up in the event of a fault code. Under normal operating conditions it is only possible to call up level 4 using the RC control device or a service tool.
In instances where the display code is a fault code, this fault code either flashes locked fault code in the display or it is shown permanently blocking fault code. A boiler reset is only necessary with a locking fault code flashing. The cause of the fault must be remedied first. The cause has to be remedied and the boiler resumes regular operation. In the event of a locking boiler fault code both the display value and the display code flash.
If there are more than once display codes at the same time, the display codes will be shown in turn. And if one of these display codes is a locking display code, the blocking display codes shown will also flash. Especially because the statistics show that Buderus boiler faults occur mostly due to two reasons.
Whenever there is a burner fault, the lamp located on the burner will flash. Control device and heating system fault finding is included in the section above. Next you should press the burner reset button as shown on the picture below. Buderus boilers are able to work in two systems: sealed and open.
Nowadays sealed system boilers are commonly used, and open systems are usually boilers that were commissioned years go. Set the over-pressure to at least 1 bar. Check the heating system operating pressure. Top up with water. Bleed the heating system. Re-check the operating pressure. You can damage the system if you re-fill it too frequently due to water quality or by corrosion and scaling. After this the mixing valve should be opened as same as the shut-off valves- both on the primary side- hot water.
At the end system should be re-filled with water. Each heating system need to contain proper amount of water to function correctly. One of the most unique features of the Buderus iron cast boilers is the thermo-stream technology. The main idea of this technology is that the water that comes to the combustion chamber is first preheated and then mixing within the appliance. Thanks to this there is a sustainable temperature distribution and there is no condensate built int he combustion chamber.
This way thermal stress is highly reduced. The minimal appliance operating temperature is always maintained- no need for a pump, n risk of its breaking. The minimum appliance operating temperatures are listed in the table below.
Those temperatures should be reached within maximum 10 min period of time. This is can be kept by controlling flow comparing to temperature of the boiler. Normally it can be managed by the Buderus control panel, but that can also be achieved by simple BMS usage. Carry out a leak test at a test pressure of 5. Slowly fill the boiler block. After this release and remove the anchor rods. Attention Pressure gauge class 1. New nipples shouldbe used and and new packing cord. Remove the UBA 3 once the fastening screw is fully loosened by pulling it forward carefully as indicated by the arrow.
Check the circuit continuity through the fuse using the volt-ohm multimeter. Do not push or force the UBA 3 in place by hand! Combustion chamber should however be cleaned with a flat brush. Hardened or damaged packing cord must be replaced! The burner door should be closed with both hexagon bolts. Once achieved you can shut down the heating system and brush out the hot gas flues. In order to reset the boiler you need to simply press the burner reset button.
The main shut-off fuel valve should be closed. Troubleshooting Manual. Safety first! If you can smell gas then there is a risk of explosion. Then you should close the mains gas, and that can be achieved by closing off the mains valve, immediately open all doors and windows. Warn all people being at the property and leave the building.
Contact your gas supplier by using a phone minimum m away from your property. If necessary, notify police or fire services. Leave the danger zone immediately when you hear gas streaming out Life danger- through poisoning. Ventilation not good enough can lead to dangerous flue gas leaks. Make sure that the ventilation and exhaust air openings are not closed and not restricted.
You should switch off the boiler immediately and call for help Life danger- through the explosion of volatile gases. Make sure that the installation, fuel gas and oil connections, the initial start-up, the power connection, repair and maintenance work are carried out by licensed specialists Life danger and material losses- through the fire of the combustible material or liquids. Never store flammable materials or liquids next to heat generator Material losses- through boiler damage caused by contaminated combustion air.
Never use chlorinated cleaning agents or halogenated hydrocarbons as, for example paints and adhesives, solvents or cleaning agents, contained in spray cans. Avoid atmospheres which are frequently very dusty. Never hang washing to dry in the boiler room Material losses- through system damage caused by frost. Have your system inspected, cleaned and maintained annually by a specialist. Annual service record should be entered into operating manual book provided with your boiler Remember to: 1.
Buderus boiler maintenance and annual service In order to assure proper economical functionality low fuel consumption and high level operational reliability your boiler should be serviced annually. Table 1. Fill and bleed the heating system. Open a thermostatic valve. Replace the primary circulation pump. Open the servicing cocks. Replace the supply and return sensor. Replace the cable loom or the affected part thereof. Restore the plug-and-socket connection.
Replace the gas valve. Replace the UBA 3. Display code. The UBA 3 does not register any connections to the unused contacts 78 and The system pressure is too low. The primary circulation pump does not generate a pressure difference. Try to undo the jam or replace the primary circulation pump.
Replace the supply cord. Clean the circulation pump inside. Connect the expansion tank to the return conduit. Clean the pressure sensor.
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