BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 28 SEDBUK Band A Gas Boilers Useful numbers Sales Service Tel: 01905 752640 Fax: 01905 456445 01905 455394 Tel: 08457 256206 Fax: 01905 757536 Livingston (Scotland) Fax: 01506 441687 Technical (Pre & Post Sales) Training Tel: 08705 266241 Fax: 01905 752741 Tel: 01905 752526 Fax: 01905 752535 Spares Literature Line Tel: 01905 752571 Fax: 01905 754620 Tel: 01905 752556 The Worcester Greenstar CDi Gas-fired Condensing Combi Boiler Series Technical a
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 2 The Greenstar CDi condensing combi boiler series Total heating and hot water comfort It’s often said that you can’t please everybody all of the time – but the advanced new series of Greenstar CDi condensing combi boilers from Worcester has so much to offer that it’s already disproving such a notion. The Greenstar CDi combi series Adjustable hot water control. User comfort & economy. Aluminium silicon heat exchanger. High efficiency.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 4 The Greenstar CDi condensing combi boiler series Central heating mode The advantages of a combi boiler A combi (or combination boiler) is a compact and highly efficient unit giving all the heating and hot water you need, with significant savings on running and installation costs. Unlike a conventional heating and hot water system, a combi boiler system does not store domestic hot water. It heats water directly from the cold mains – as you use it.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 6 DT10RF digistat Increased SAP ratings A familiar wall-mounted 24 hour programmable RF digital thermostat combined with a fascia mounted single channel programmer to time the hot water cylinder or combi preheat functions. The programmer includes a built-in receiver for the room thermostat and all of the functionality of the DT20.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 8 The Greenstar CDi condensing combi boiler – inside story Installing the Greenstar CDi series All combi boilers require less installation time than a conventional boiler, for these reasons: Compartment installation 1. All the major components, including the pump, are contained within the boiler casing and do not need to be fitted separately. 2. The boiler comes pre-wired and pre-plumbed. 3. There is no need to install a hot water cylinder. 4.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 10 Condensate termination and route External condensate pipe work The condensate connection on the Worcester appliances is in 22mm plastic. The pipe should be extended and run away from the appliance with a constant fall of 2.5 degrees or 50mm in every metre. Flue terminal positioning All Worcester condensing boilers have within a syphonic condensate trap.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 12 Greenstar CDi combi boiler series horizontal fluing options The Greenstar CDi series has the choice of 2 differently sized horizontal RSF flue systems, 100mm and 125mm. Both systems have different maximum lengths. Options 1 to 6 detail the permissible lengths.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 14 Option 3 EXTENSION FLUE HORIZONTAL AND UPWARDS Option 4 Option 5 Option 6 EXTENSION FLUE HORIZONTAL USING A SECOND 90˚ BEND EXTENSION FLUE UPWARDS AND HORIZONTAL USING A SECOND 90˚ BEND EXTENSION FLUE UPWARDS AND HORIZONTAL USING A THIRD 90˚ BEND x2 x3 Maximum total straight flue length Maximum total straight flue length 100mm 25CDi 125mm 10,000mm 23,000mm 30CDi 7,900mm 18,500mm 35CDi 6,500mm 16,000mm 40CDi 2,600mm 12,500mm 5,900mm 1
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 16 Greenstar CDi combi boiler series vertical fluing options The Greenstar CDi series have the choice of 2 differently sized vertical RSF flue systems, 100mm and 125mm. Both systems have different maximum lengths. Options 1 to 3 detail the permissible lengths.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 18 Installation requirements Plastic pipe work Installation of the Greenstar CDi Series must be in accordance with the relevant requirements of the Gas Safety (Installation Use) Regulations (as amended), current IEE Wiring Regulations, local Building Regulations, Building Standards (Scotland) (Consolidation) regulations and bylaws of the local Water company and Health and Safety Document No. 635 (Electricity at Work Regulations 1989).
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 20 Installation requirements continued Cold water connection Propane gas supply Connection should be made as shown in the pipe work detail and the appliance installed generally in accordance with the layout shown on page 10. The Greenstar CDi Series is available in a propane gas version. The appliance when on a hot water or full output demand will require up to 2.0 kg/h of gas (25kW).
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 22 Notes Notes 22 23
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 24 The Greenstar CDi series accessories MT10 MECHANICAL TIMER MT10RF MECHANICAL RF THERMOSTAT DT20 TWIN CHANNEL DIGITAL PROGRAMMER DT20RF DIGITAL RF THERMOSTAT WITH TWIN CHANNEL PROGRAMMER A Complete After-sales Service As part of the worldwide Bosch Group, Worcester strives to maintain the highest possible standards of after-sales care.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 26 The very best training programmes from Worcester Distance Learning Worcester has always placed great emphasis on technical support and training for installers and service engineers. Today this need is greater than ever. The differences between a combi, conventional and condensing boiler are substantial, and the technology of each continues to advance at a rapid pace.
