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‘ I n s t a l l e r o h .c o .u k e s t e r - b o s c w w w .w o r c 9/14, 14/19 & 19/24CBi Worcester supports the Benchmark code of practice G. C. NUMBERS APPLIANCE NATURAL GAS...
EXCELLENCE COMES AS STANDARD Thank you for purchasing a Worcester CBi boiler. The CBi 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 appliance design and performance for more than 40 years.
GENERAL DESCRIPTION The Worcester boilers provide a heat output of between 9-14kW (9/14CBi), 14-19kW (14/19CBi) & 19-24kW (19/24 CBi) and contain a temperature control and all the appropriate safety controls. They are suitable for fully pumped open vent or sealed systems.
Central Heating When a demand is made for heating by the system controls (i.e. a programmer or room thermostat). A pump will energise circulating primary water around the heating system and the burner, after a few seconds, will light. The heat output from the appliance in this mode has been factory set to give maximum output or as reset by your installer.
Your installer will have provided adequate space around the appliance for safety and servicing. This space must not be restricted by the addition of cupboard shelves etc. closer to the appliance. The following minimum clearances are required. 9/14CBi 14/19CBi 19/24CBi Left-hand side...
ROOM THERMOSTAT A room thermostat may be fitted for control of the central heating temperature. It will be located in one room of the home. The method of setting a room thermostat varies with the type and manufacture. Refer to the instructions supplied with the room thermostat. PROGRAMMER/CLOCK A programmer or clock may have been fitted to the system: the method of setting varies with the type and manufacturer.
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 suitable frost precautions. The boiler has an in-built frost thermostat which will protect the appliance should the temperature of the boiler drop below approximately 10°C.
‘O’ position the appliance is off. BOILER RESET BUTTON If the lockout light is on or flashing, turn the temperature control fully anticlockwise to the 'O' position and back on again. If the appliance still fails to operate then contact Worcester Bosch or your installer.
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Fig. 1. Controls. Temperature control Boiler Burner Lock-out demand...
TO LIGHT AND STOP THE APPLIANCE INDICATOR LIGHTS Boiler demand : System is calling for heat Burner ON Burner is firing Lock-out There is a fault condition Steady light - Overheat Flashing light - Flame failure TO LIGHT THE APPLIANCE Check that the water valves to the central heating circuit are open.
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APPLIANCE LOCKOUT The appliance can be reset by turning the boiler temperature control fully anti-clockwise and back. Check that the gas supply has not been interrupted. If this condition continues to occur, then call a service engineer.
Lighting Instructions ensuring all controls are set correctly. If, after following the instructions the appliance still fails to operate correctly call the Worcester Contact Centre. Arrangements will be made for an engineer to call as soon as possible. NOTE: No sealed components should be adjusted. Failure to comply with this will invalidate any warranty and will be hazardous to the user.
– however if you have difficulty making a satisfactory arrangement simply contact Worcester on 08457 256206 for help. If you would like to know more about Worcester’s extended warranty options please tick the appropriate box on your warranty registration card.
8.00am to 5.00pm 9.00am to 12.00pm Please contact our UK Contact Centre number where our friendly operators 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...
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3. That the householder may be asked equipment purchased and used in to prove the date of installation and mainland Great Britain. This guarantee is given in addition to all your normal statutory rights. Worcester, Bosch Group is a trading name of BBT Thermotechnology UK Ltd.