USER INSTRUCTIONS & CUSTOMER CARE GUIDE FLOOR STANDING OIL FIRED CONDENSING BOILER CONVENTIONAL FLUE & ROOM SEALED FLUE GREENSTAR HEATSLAVE II EXTERNAL 12/18, 18/25 & 25/32 FOR SEALED CENTRAL HEATING SYSTEMS WITH MAINS FED DOMESTIC HOT WATER THE BOILER IS FOR USE WITH KEROSENE (28 SECOND OIL) ONLY UK
CONTACT INFORMATION USER INSTRUCTIONS & CUSTOMER CARE GUIDE WORCESTER, BOSCH: PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE OPERATING YOUR BOILER THESE INSTRUCTIONS ARE APPLICABLE TO THE WORCESTER, BOSCH GROUP BOILER MODEL(S) STATED ON THE FRONT COVER OF THIS MANUAL ONLY AND MUST NOT BE USED WITH ANY OTHER MAKE OR MODEL OF BOILER. THE INSTRUCTIONS APPLY IN MAINLAND UK ONLY AND SHOULD BE FOLLOWED EXCEPT FOR ANY STATUTORY OBLIGATION.
INTRODUCTION CONTENTS 2 USING YOUR BOILER CONTROLS OPERATING THE BOILER Switching the boiler on/off Setting the heating temperature Controlling central heating Setting the hot water temperature Domestic hot water (DHW) Eco mode Frost protection Boiler Alert state System pressure & filling loop Fault finding 5 5 5 6 6 7 7 8 9 10 MAINTENANCE MAINTAINING YOUR BOILER SERVICING 11 12 GENERAL INFORMATION IMPORTANT INFORMATION GENERAL NOTES 13 14 ENERGY SAVING TIPS ON ENERGY SAVING 15 GUARANTEE FAULT OR
INTRODUCTION SAFETY PRECAUTIONS OIL FUMES OR LEAKS FROM THE BOILER: ✔ Extinguish any naked flames. ✔ Switch off the boiler electricity supply. ✔ Isolate the fuel supply to the boiler. ✔ Contact installer/service engineer. IMPORTANT: This boiler must only be operated by a responsible adult who has been instructed in, understands and is aware of the boiler’s operating conditions and effects.
CONTROLS TO ACCESS CONTROLS: To access controls first remove the front panel: C 4 Unscrew the two screws (A) on the bottom of the front panel using the tool (B) provided. USING YOUR BOILER The panel will drop down and can be carefully removed. 4 Pull control drawer (C) fully forwards. To replace: 4 Push control drawer (C) firmly back into place. 4 Push the front panel up behind the top panel, push in and secure in place with the screws (A) using tool (B).
CONTROLS DISPLAY SYMBOLS: USING YOUR BOILER SCREEN DISPLAY DESCRIPTION EXPLANATION All possible screen symbols (including greyed out symbols) All possible screen symbols are displayed briefly during start up. The greyed out symbols are not required for the operation of this appliance. Numerical display Displays a temperature setting or boiler status code. Text display Displays ECO or Alert code Hot water Displays during a hot water demand and when the heat store is reheating.
OPERATING THE BOILER SWITCHING THE BOILER ON/OFF: 4 To switch on the boiler; turn on the water, oil and electricity supply to the boiler. 4 Check the programmer/timer is correct and is set to ON. 4 Open and set thermostatic radiator valves as required. 4 Turn the boiler water temperature control to the required setting. 4 To switch off the boiler; turn the programmer/timer to OFF for heating and hot water. USING YOUR BOILER 4 Set the room thermostat to the desired setting.
OPERATING THE BOILER SETTING THE HOT WATER TEMPERATURE: USING YOUR BOILER The hot water temperature control knob sets the temperature of the heat store. A high setting will give a higher hot water temperature and greater quantities of hot water. 1. Turn the hot water temperature control knob to the desired level between 1 and 8, this will be shown on the digital display. 2. The tap symbol will be displayed to confirm that the hot water setting is being changed. 3.
OPERATING THE BOILER Eco mode is an energy saving feature which alters the cycling function of the burner for heating the heat store tank. In normal operation the burner will fire more frequently between demands in order to maintain a stored temperature close to the hot water set point you have entered. In Eco mode, the burner fires less frequently between demands meaning that the heat store temperature is maintained at a lower average level, but the tank set point remains the same.
OPERATING THE BOILER BOILER ALERT STATE: USING YOUR BOILER Should a fault develop with this boiler (or the system), the boiler will enter into a Locking or Blocking condition. In the event of a Lockout condition, the blue operation/fault light and the alert triangle symbol will flash, an alpha numeric fault code and a 3 digit cause code will be displayed. BOILER RESET: 1. Press the button on the fascia to clear the fault. 4‘Reset’ and the spanner symbol are briefly displayed.
OPERATING THE BOILER SYSTEM PRESSURE: This boiler is fitted to a sealed heating system which is pre-pressurised. Your installer will advise you of the minimum and maximum pressure indicated on the pressure gauge. Optimum system pressure when your boiler is cold (area A) and the pump is off. The indicated pressure will change as the pump switches on, for more accurate readings check pressure when the pump is not running. USING YOUR BOILER 4 Check regularly that the pressure is maintained.
FAULT FINDING Cause Remedy Desired room temperature is not reached Thermostatic radiator valve(s) set too low Increase thermostatic radiator valve setting(s) Room thermostat set too low Increase room thermostat setting Temperature control for CH flow on boiler set too low Increase CH flow temperature control setting Air trapped in heating system Bleed radiators and recharge heating system if system pressure is low Desired room temperature exceeded by large amount Radiators are too hot Turn dow
MAINTAINING YOUR BOILER Your new 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 servicing and maintenance checks are performed at least once a year by an OFTEC engineer or other suitably qualified person. If you would like to know more about servicing options from Worcester, Bosch Group, please visit worcester-bosch.co.uk.
SERVICING SERVICING: You must have the boiler regularly serviced by a competent, qualified OFTEC registered engineer using approved spares, to help maintain the economy, safety and reliability of the boiler. The boiler should be serviced once each year after installation unless the installation conditions and usage demand more frequent services. IMPORTANT:- Ensure that the service engineer completes the Service Record in the checklist after each service.
IMPORTANT INFORMATION INSTALLATION & SERVICING CLEARANCES WARNING: 600mm External equipment operating at 230 Volts must not be serviced or repaired during adverse weather conditions. FUEL: 600mm This appliance is designed to use 28 second kerosene, no other fuel must be used. FRONT Do not use pressure washers or steam cleaners on this appliance or cabinet. 2500mm BOILER LOCATION: BASE WARNING: This boiler must not be installed where there is a potential for excessive ground water coverage.
GENERAL NOTES To get the best from your boiler. please read these instructions carefully. CENTRAL HEATING SYSTEMS During the first few hours of operation of the central heating system, check that all radiators are being heated at an even rate. If the top of a radiator is at a lower temperature than the bottom then it should be vented by releasing air through the venting screw at the top of the radiator. Ask your installer to show you how this is done.
TIPS ON ENERGY SAVING Room thermostats: Reducing the setting of the room thermostat by 1°C can reduce fuel consumption by up to 10%. New control systems: Upgrade your heating control system with the latest equipment available. The minimum level of control for a heating system is a programmer, interlocking room thermostat and thermostatic radiator valves.
FAULT OR BREAKDOWN This boiler is supported in mainland UK by Worcester, Bosch Group, part of Bosch Thermotechnology Ltd. BOILER DATA LABEL Specialist trained, Worcester, Bosch Group Service Engineers are available to attend in the unlikely event that a breakdown occurs on this boiler. To access first remove the front panel: No charge will be made for parts and/or labour providing: 4 A boiler fault is found and the boiler has been installed within the guarantee period.
GUARANTEE REGISTRATION YOUR GUARANTEE You should complete and return the postpaid Guarantee Registration Card within 30 days of installation.
If the boiler fails to give complete satisfaction, please check the following before calling for a service engineer:General checks 1. Oil level in the tank 2. Power to the boiler 3. All control settings NOTE: NO BOILER FAULT IS FOUND ON OVER 30% OF ALL SERVICE CALL OUTS. Please read the fault section of the manual before contacting our service team. Dedicated to heating comfort Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 01905 754624 Fax. 01905 754619 worcester-bosch.co.
