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USER INSTRUCTIONS
WALL HUNG RSF GAS FIRED CONDENSING COMBINATION BOILER
Greenstar CDi Compact
FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED DOMESTIC HOT WATER
The appliances are for use with:
Natural Gas or L.P.G. (Cat. II 2H 3P type C13, C33 & C53)
Natural Gas: 28CDi Compact GC number 47-406-44
32CDi Compact GC number 47-406-46
36CDi Compact GC number 47-406-48
L.P.G.: 28CDi Compact GC number 47-406-45
32CDi Compact GC number 47-406-47
36CDi Compact GC number 47-406-49
UK/IE
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Summary of Contents for Worcester Greenstar CDi Compact Series
- Page 1 USER INSTRUCTIONS WALL HUNG RSF GAS FIRED CONDENSING COMBINATION BOILER Greenstar CDi Compact FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED DOMESTIC HOT WATER The appliances are for use with: Natural Gas or L.P.G. (Cat. II 2H 3P type C13, C33 & C53) Natural Gas: 28CDi Compact GC number 47-406-44 32CDi Compact GC number 47-406-46 36CDi Compact GC number 47-406-48...
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Page 2: Table Of Contents
Using the Worcester integral filling link ........ -
Page 3: Symbols And Safety Precautions
SYMBOLS AND SAFETY PRECAUTIONS SYMBOLS AND SAFETY PRECAUTIONS 1.1 EXPLANATION OF SYMBOLS WARNING SYMBOLS Safety instructions in this document are framed and identified by a warning triangle which is printed on a grey background. Signal words indicate the seriousness of the hazard in terms of the consequences of not following the safety instructions. •... -
Page 4: General Information
Benchmark Checklist and service interval record can be found at the rear of the Installation, Commissioning and Servicing Instructions. • The boiler must be serviced regularly by a competent, qualified person, such as a Worcester service engineer or other Gas Safe registered engineer. -
Page 5: Controls
12 Hot water temperature control 6 Central heating temperature control 13 Diagnostic port* 7 Scroll up button 8 OK - Select/confirmation button 14 Central heating system pressure gauge * for Worcester service engineer use only 6 720 803 801 (2012/09) - Page 6 CONTROLS DISPLAY SYMBOLS SCREEN DISPLAY BRIEF DESCRIPTION EXPLANATION All possible screen symbols This screen is displayed briefly during boiler start up and shows all the symbols that could be displayed on the screen. °C °F Numerical display Displays a temperature setting or boiler status code. Text display Display PreHeat or Eco, or the Alert code Hot water...
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Page 7: Operating The Boiler
CONTROLS 3.1 OPERATING THE BOILER 3.1.1 BOILER DISPLAY This is typical of the display when the boiler is not supplying a central heating or hot water demand. The display will not be backlit and the internal temperature of the boiler is displayed. When heat is demanded and the boiler fires up, the flame symbol will be displayed. -
Page 8: Turning The Central Heating Off During The Summer
CONTROLS 3.1.4 TURNING THE CENTRAL HEATING OFF DURING THE SUMMER B Turn your programmer/timer to the off position. B Please refer to the programmer/timer manufacturer's instructions. 3.1.5 SETTING THE FLOW TEMPERATURE FOR DOMESTIC HOT WATER SYSTEM 1. Turn the hot water temperature control knob to the desired level between 40 and 60°C, this will be shown on the digital display. °C reset °F... -
Page 9: Domestic Hot Water Preheat (With Fascia Timer Fitted)
3.1.7 DOMESTIC HOT WATER PREHEAT (with fascia timer fitted) When a Worcester twin channel programmer is fitted, the PreHeat/Eco option can be selected via the programmer. Eco mode timed by a programmer will be displayed as shown below (1). Refer to the programmer manual for details on how to set the time periods. -
Page 10: Boiler Alert State
°F Reset 6720643358-09.2Wo If the fault remains and cannot be cleared by pressing the reset button, contact Worcester, Bosch Group for assistance on 0844 892 3000. 3.1.11TURN OFF THE OPERATION/FAULT DIAGNOSTIC LIGHT (BLUE) Your new Greenstar CDi Compact boiler is designed to use as little electricity as possible during operation and in stand-by mode. To further enhance your energy saving during stand-by, you may choose to deactivate the operation/fault diagnostic light. -
Page 11: System Pressure
B Contact your installer or maintenance engineer if a permanent significant decrease or increase in pressure is indicated on the pressure gauge. B Use the Worcester integral filling link to re-pressurise your boiler, refer to the following section 4.2. NOTICE: To comply with the Water Authority regulations you must remove the “filling key” or disconnect the external filling loop after re-pressurisation. -
Page 12: Using The Worcester Integral Filling Link
SYSTEM PRESSURE 4.2 USING THE WORCESTER INTEGRAL FILLING LINK Locate filling key and follow instructions for re-pressurising. 1. Push the filling key firmly into the body of the filling link, ensuring the arrow on the key shaft lines up with the open padlock symbol. -
Page 13: Service Clearances
If your Greenstar gas-fired boiler should fail to operate correctly or requires servicing, please contact the Worcester, Bosch Group Appointments Team (see rear cover for details). -
Page 14: Fault Finding
In the event that the boiler stops functioning or does not perform as expected, you can carry out a few simple checks. These checks are some of the most common causes and are listed in the table below. Should the problem persist or if other alert codes are displayed, then it will be necessary to contact the Worcester, Bosch Group. Problem... -
Page 15: Extreme Cold Weather
Worcester, Bosch Group for further assistance. When calling Worcester, Bosch Group about a fault, it will be useful to quote the alert code and three digit number under the alert code, e.g. EA and 227. If there is a fault that cannot be reset by you, the user, then a service engineer visit will be necessary. -
Page 16: Fault Or Breakdown
In the case of a suspected fault, refer to the fault finding section of this guide. In the event of a boiler fault or breakdown please contact Worcester, Bosch Group appointments team on 0844 892 3000. Your advisor will arrange for an engineer to call with the minimum of delay; under normal circumstances this will be from 1 - 3 working days (excluding weekends and bank holidays) for priority breakdown situations (no hot water and/or heating). -
Page 17: Environment / Disposal
ENVIRONMENT / DISPOSAL ROOF INSULATION Around 30% of the heat loss from a property is through the roof. Replace any old insulation with new insulation, preferably of around 200mm thickness or more. WINDOW FRAMES Single glazed windows, particularly those with steel frames, can lose a great deal of heat. Consideration should be given to replacement with PVCu or wooden framed double glazed units. -
Page 18: Your Guarantee
Your Greenstar boiler carries a two year guarantee against faulty material or manufacturer subject to Terms and Conditions. To read the full Terms & Conditions please visit us on-line at www.worcester-bosch.co.uk/guarantee. The Guarantee Registration form is available on this same page and can be completed and submitted electronically. -
Page 19: Glossary
GLOSSARY 12 GLOSSARY Central heating systems All radiators must be heated at an even rate. If the top of a radiator is at a lower temperature than the bottom then it should be bled by releasing air through the bleed screw at the top of the radiator. Ask your installer to show you how this is done. - Page 20 LITERATURE: 0844 892 9800 TRAINING: 01905 752526 SALES: 01905 752640 Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 0844 892 9900 Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd. worcester-bosch.co.uk 6 720 803 801 (2012/09)
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