SF-SERIES
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SF SERIES SOLID FUEL BOILER

Index Information on the boiler plate Boiler dimensions , Boiler packaging dimensions Technical parameters Introduction Ensuring safety of equipment and people , Head loses Operating Instructions Operating instructions SF Series Boiler - General features Recommended fuel Control and safety devices Temperature safety valve Hydraulic Connection Diagram Putting the boiler into service Checking the boiler before turning it on Filling and draining the heating system Operation and controls Starting a fire Setting outlet water temperature Stoking Overnight heating mode Removing solid combustion...

Information on the boiler plate The boiler Serial No. is shown on the plate which is attached to the cover panel of the cast iron body.

Boiler dimensions Boiler packaging dimensions

Technical parameters

Introduction 1. The boiler and all associated equipment must be installed and used in accordance with the installation design, all applicable legal regulations and technical standards and with the manufacturer’s instructions. The boiler may be used only for the purpose for which it is intended. 2. The boiler may be installed only in an environment which it is designed for.If the boiler is delivered to the client by the same person who installs it, he must give the user also all accompanying boiler documentation ( in particular User Guide, Service Book, etc. ). Until the boiler is put into...

• Applicable regulations and standards ; • Sound installation and operation procedures • Conditions stated in the Warranty Certificate and the Service Book. Situations might occur in practice, when the following essential precautions must be taken: • Shut the boiler down every time when there are any ( even temporary ) flammable or explosive fumes present on the premises from which combustion air is supplied to the boiler ( e.g. from paint when painting, laying and spraying molten substances, from gas leakage, etc.) ; • if it is necessary to drain water from the boiler or from the whole...

Operating Instructions SF Series Boiler – General features • SF series solid fuel fired boiler is designed for heating both residential and industrial buildings. • Besides professional installation, precondition for correct functioning of the boiler is the required chimney thrust and correct operation. • SF series solid fuel fired boiler is designed for heating systems which are suitable for forced circulation systems only. • SF series boilers are available in four output series ( determined by the number of segments 3, 4,5,6 ) from 17 to 41 kW. • The cast iron boiler body comprises of...

Control and safety devices SF boilers are equipped with three main control elements: A chimney flap ( Fig. 5 ), by means of which the chimney thrust can be controlled, i.e. the discharge of combustion fumes into the chimney. The flap is situated in the flue neck of the boiler, and is controlled manually. Another thrust control element is a thermo-mechanical output regulator (Fig. 6). It is situated on the outlet from the boiler cast iron body. It detects temperature of the hot water and regulates the supply of primary combustion air to underneath the boiler stoker, by opening or shutting a...

Changing the hatch position controls the combustion intensity and thus the boiler output. The thermo mechanical output regulator is connected with the regulating hatch by chain. The chain is connected to the hatch in such a way that its tension can be set ( Fig. 7 ). Keep object's away from regulation hatch's front and channels for allowing primary air transfer. Supply of secondary combustion air is controlled by an air rosette ( Fig. 8 ), situated in the boiler’s stoking door, which has a direct effect on the level of emission. Hot water temperature can be checked on a thermometer (Fig....

Temperature safety valve The SF boilers are equipped with a safety valve (Fig.10) which ensures dissipation of excessive heat without additional device and supply of external energy in such a way that the maximum permissible boiler temperature of 95°C is not exceeded. A temperature safety valve must be connected to the inlet - outlet connections of the boiler. Please note • It is not permissible to reverse the flows, the indications for inlet and drain shown on the valve must be followed. • Maximum temperature of the input water for temperature safety valve is 15 °C and minimum water...

Hydraulic Connection Diagram It is suggested hydraulic system should be installed according to following schemes. Open Expansion Tank System fig. 11 1. Safety Heat Exchanger (SHT) 2. Safety Valve (TS 131 , STS 20 ) 3. Water Supply 4. System Safety Valve (3 bar - 1/2" ) 5. Check Valve 6. Mixing Valve 7. System Pump 8. Heating System 9. Open Expansion Tank • Open-type expansion tank must be equipped with the highest level in the entire hydraulic system. • The expansion tank must be selected properly against the changes in water volume resulting from heating and cooling. • The expansion tanks...

Putting the boiler into service Checking the boiler before turning it on Before putting the boiler into operation, the service technician must check: • Whether the installation conforms with the design; • Whether the boiler has been filled in and is under pressure (on the thermo - manometer ), and whether there are any leakage in the heating system; • Connection to the chimney - connection must be approved by an authorized chimney sweep ( chimney inspection); • Functioning of the heating controls. Please note The service technician must show the user how to control the boiler and enter the...

Provide an even layer throughout the entire boiler depth. If the fuel suddenly turns into dark red blaze, open partially the secondary air supply rosette in the stoking door. When the flame turns yellow, shut the secondary air supply rosette again. When the boiler has reached the required output, it is suitable to partially shut the flue thrust flap to prevent heat from unnecessarily escaping into the chimney. • Do not start the boiler without connecting the boiler to the chimney. • Control chimney connections before starting the boiler. • Adjust the chimney blow as requested level. If...