.w o r c e 15/24SBi SYSTEM BOILER Worcester supports the Benchmark code of practice G. C. NUMBERS APPLIANCE NATURAL GAS L. P. G. 15SBi 41 311 43 41 311 45 24SBi 41 311 44 41 311 46 USER INSTRUCTIONS & CUSTOMER CARE GUIDE IMPORTANT: THIS APPLIANCE IS FOR USE WITH NATURAL GAS OR LPG.
The SBi Series appliances are made by Worcester and the strictest quality control standards are demanded throughout every stage of production. Indeed, Worcester, part of the Bosch Group have led the field in innovative appli- ance design and perform- ance for more than 40 years.
The WORCESTER system boilers are sealed system central heat- ing aplliances. They consist of a gas fired boiler having a varying out- put of between 6 - 15kW (15SBi) and 15 - 24kW (24SBi), a circulating pump and all necessary controls to provide central heating.
Central Heating When a demand is made for heating by the system con- trols (i.e. a programmer or room thermostat). The pump will energise circulating primary water around the heating system and the burner will light. The heat output from the appliance in this mode has been factory set to mid-range or as reset by your installer.
GENERAL NOTES CENTRAL HEATING SYSTEM During the first few hours of operation of the central heating system, check that all radiators are being heated at an even rate. Should the upper area of a radiator be at a lower temperature than the base of the radiator, it should be vented by releasing air through the venting screw at the top of each radiator.
CLEARANCES 15SBi 24SBi Your installer will have provided adequate Left-hand side space around the appliance Right-hand side for safety and servicing. Do In Front not restrict this space by the addition of cupboards, Above shelves etc. close to the Below appliance.
FROST PRECAUTIONS If the appliance is not to be used for a long period of time and there is a likelihood of freezing, then the appliance should be drained. The Worcester Technical Helpline will advise you on suit- able frost precautions. SERVICE Annual servicing is important in order to ensure continuing high efficiency and long life for your appliance.
Operating instructions are supplied with the programmer. RESET BUTTON Press and release this button if the appliance fails to operate - if the appliance still fails to operate then contact Worcester Bosch or your installer.
Fig. 3. Controls. Mains electricity Reset indicator button CH temperature System pressure control knob gauge...
TO LIGHT AND STOP THE APPLIANCE INDICATOR LIGHTS Green light: MAINS : ‘ON’ TO LIGHT THE APPLIANCE Check that the water valves to the central heating circuit are open. Check that the grey needle on the pressure gauge is not below the required pressure.
APPLIANCE LOCKOUT The appliance can be reset by pressing the reset button. Check that the gas supply has not been interrupted. If this condition continues to occur, then call a service engineer. REMOVAL AND REPLACEMENT OF THE FRONT PANEL (See Fig. 4) Removal: Holding the panel at the edges, slide it upwards to disengage the clips and ease the top edge forwards and upwards to raise it clear of...
APPLIANCE FAILS TO OPERATE More than 30% of all calls made to our contact centre reporting appliance faults or breakdowns prove to be false alarms, as there is often a simple explanation for the apparent malfunction. So, to help you save time and money – not to mention frustration and inconvenience –...
MAINTAINING YOUR APPLIANCE Your new Worcester system boiler represents a long-term investment in a reliable, high quality product. In order to realise its maximum working life, and to ensure it continues to operate at peak efficiency and performance, it is essential that your boiler receives regular, competent servicing and annual maintenance checks beyond the initial 12 month guarantee period.
9.00am to 12.00pm Please contact our UK Contact Centre number where our friendly opera- tors will book your call with one of our team of nationwide engineers. NOTE: Please refer to our website for our bank holiday opening hours. www.worcester-bosch.co.uk...
7. That this guarantee applies only to 3. That the householder may be asked equipment purchased and used in This guarantee is given in addition to all your normal statutory rights. Worcester, Bosch Group is a trading name of BBT Thermotechnology UK Ltd.