8 716 113 390e 30/3/10 14:05 Page 1 USER INSTRUCTIONS & CUSTOMER CARE GUIDE EXTERNAL OIL FIRED CONDENSING COMBINATION BOILER BALANCED FLUE GREENSTAR HEATSLAVE EXTERNAL 12/18, 18/25, 25/32 FOR OPEN VENT AND SEALED CENTRAL HEATING SYSTEMS WITH DOMESTIC MAINS FED HOT WATER THE BOILER IS FOR USE WITH KEROSENE (28 SECOND OIL) ONLY UK
8 716 113 390e 30/3/10 14:05 Page 2 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.
0/3/10 14:05 Page 3 INTRODUCTION 8 716 113 390e CONTENTS 1 2 USING YOUR BOILER CONTROLS OPERATING THE BOILER Switching the boiler on/off Central heating temperature control Controlling central heating Setting the hot water temperature Frost protection Pressure gauge Filling loop Fault conditions Fault finding 4 4 4 5 5 6 7 8 10 MAINTENANCE LOCATION & CLEARANCES MAINTAINING YOUR BOILER SERVICING 11 12 13 GENERAL INFORMATION GENERAL NOTES 14 ENERGY SAVING TIPS ON ENERGY SAVING 15 GUARANTEE FAUL
INTRODUCTION 8 716 113 390e 30/3/10 14:05 Page 4 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.
8 716 113 390e 30/3/10 14:05 Page 5 To remove the front panel, undo the screws on each side of the base of the front panel using the tool provided (see diagram below). The panel can then be removed by pulling out at the base and then sliding down to disengage from the lid. A Reset button - lock out*. *The alternative reset is accessed by reaching under the fascia and pressing the reset button on the control box of the burner (see diagram below). B Reset button - boiler. C Reset button - flue thermostat.
8 716 113 390e 30/3/10 14:05 Page 6 OPERATING THE BOILER SWITCHING THE BOILER ON/OFF: To switch on the boiler; turn on the water, oil and electricity supply to the boiler. USING YOUR BOILER Check the mode switch is in boiler ON position with the indicator illuminated. Check the programmer/timer is correct and it is set to ON. Set the room thermostat to the desired setting. Open and set thermostatic radiator valves as required.
8 716 113 390e 30/3/10 14:05 Page 7 OPERATING THE BOILER SETTING THE HOT WATER TEMPERATURE: Turn the control clockwise to increase the water temperature. Turn the control anti-clockwise to reduce the water temperature. USING YOUR BOILER A high setting will give a higher hot water temperature and greater quantities of hot water.
716 113 390e 30/3/10 14:05 Page 8 OPERATING THE BOILER PRESSURE GAUGE: USING YOUR BOILER The pressure gauge indicates the boiler/heating system water pressure and has two pointers: Red (external) pointer is set manually to indicate the normal system pressure (1 to 1.5 bar for sealed systems, 0 to 0.5 bar for open vent systems). Grey (internal) pointer shows the actual system pressure (on sealed systems the pressure will rise when the boiler/system heats up from cold).
8 716 113 390e 30/3/10 14:05 Page 9 OPERATING THE BOILER FILLING LINK: Sealed systems only If the sealed system pressure within your system drops to below 0.5 bar (shown on the pressure gauge) you will need to increase the pressure to ensure your boiler continues to run without problems. Your installer should have informed you where to find the filling system and instructed you in its use.
8 716 113 390e 30/3/10 14:05 Page 10 OPERATING THE BOILER FAULT CONDITIONS: The Boiler mode and Lockout lights can indicate some basic fault conditions. USING YOUR BOILER (1) Accessing Controls: Undo the screws on the bottom of the front panel using the tool provided. The panel can be removed by pulling out at the base and then sliding down to disengage from the lid. If button A does not reset the boiler press the alternative burner reset button (D).
8 716 113 390e 30/3/10 14:05 Page 11 OPERATING THE BOILER (3) Both lights on: Boiler not firing Check the level in the oil tank. If there is no response, wait two minutes and press the reset button (A) again. If “lockout” light stays on, do not attempt further resets. Contact your service engineer for advice. on max USING YOUR BOILER Press the reset button (A), the boiler should fire. If button (A) does not reset the burner, press the alternative burner reset (D).
8 716 113 390e 30/3/10 14:05 Page 12 USING YOUR BOILER FAULT FINDING 10 Problem 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, if fitted to a sealed system recharge heating system Desired r
8 716 113 390e 30/3/10 14:05 Page 13 INSTALLATION & SERVICING CLEARANCES 600mm LOCATION & CLEARANCES WARNING: External equipment operating at 230 Volts must not be serviced during adverse weather conditions. Do not use pressure washers or steam cleaners on this boiler or cabinet. FRONT 600mm min. 2500mm* FUEL: This boiler is designed to use kerosene, no other fuel may be used. WARNING: BASE Never allow the flue terminal or air inlet to become obstructed by plants or any other objects.
8 716 113 390e 30/3/10 14:05 Page 14 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.
8 716 113 390e 30/3/10 14:05 Page 15 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.
8 716 113 390e 30/3/10 14:05 Page 16 GENERAL NOTES To get the best from your boiler. please read these instructions carefully. SEALED HEATING SYSTEMS Where the boiler is fitted to a sealed heating system your installer will inform you of the minimum and maximum pressure which must be indicated on the pressure gauge. Check regularly that the pressure is maintained and contact your installer or maintenance engineer if there is a noticeable, permanent drop in pressure.
8 716 113 390e 30/3/10 14:05 Page 17 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.
8 716 113 390e 30/3/10 14:05 Page 18 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. Unscrew the two screws on the bottom of the front panel using the tool provided. The panel will drop down and can be carefully removed.
30/3/10 14:05 Page 19 GUARANTEE REGISTRATION YOUR GUARANTEE You should complete and return the postpaid Guarantee Registration Card within 30 days of installation.
8 716 113 390e 30/3/10 14:05 Page 20 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 4. The system pressure is appropriate for your system (see page 6) Dedicated to heating comfort Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 0844 892 9900 Fax. 01905 754619 www.worcester-bosch.co.
