Greenstar 42CDi
Description
The Greenstar CDi gas combi boilers are our top of the range appliances.
You can control both the hot water and central heating temperatures on a Greenstar CDi combi. They also offer the widest choice of operating features within our gas boiler range, providing the ultimate in user convenience, performance and economy.
Greenstar CDi combi boilers are unique in that they condense in both heating and hot water modes, resulting in greater efficiency and fuel savings.
The higher outputs of Greenstar CDi boilers can be suitable for larger properties with more than one bathroom. If you’re looking for light commercial outputs, Buderus specialise in heating products from 43kW.
Central heating output: 30kW
Domestic hot water flow rate: 17.2 litres per minute at 35 degree temperature rise (provided adequate mains water pressure is available)
Efficiency
Print a handy summary about this product
Features and benefits
- Best boiler efficiency rating (SEDBUK band A)
- Fully condensing in both central heating and domestic hot water modes
- Keep hot facility - instantly available hot water
Wall mounting frame allows pipework to be hidden from view
Vertical pre-piping kit
- Below boiler pipe cover
Earth bonding strip
Low NOx and CO2 emissions - environmentally friendly
- 2 year guarantee, 10 year guarantee on primary heat exchanger and 5 year anti-scale guarantee on domestic hot water heat exchanger (subject to terms and conditions)
- Hot water and central heating temperatures can be controlled
- Multi-directional fluing means boiler can be sited in a wider variety of places
- Mechanical, digital and new generation intelligent controls all compatible
- Heat load and flow generated precisely to meet the heating system’s requirements using a modulating pump
Technical data table
| Technical data | |
|---|---|
| Title | Value |
| Primary water capacity (total) (litres) | 3.75 |
| Hot/cold water connections | 15mm compression |
| Height (mm) | 760mm (max) |
| Width (mm) | 440mm |
| Depth (mm) | 360mm (max) |
| Weight | 48.5kg |
| DHW flow rate @ 35°C rise | 17.2 |
| DHW flow rate @ 40°C rise | 15.1 |
| Output to central heating | 9.4 - 30kW (32,073 - 102,360Btu) |
| Solar compatible | No |
| Maximum horizontal flue (100mm Ø) | 6,000 |
| Maximum vertical flue (100mm Ø) | 7,500 |
| Maximum horizontal flue (125mm Ø) | 12,000 |
| Maximum vertical flue (125mm Ø) | 16,000 |
| Gas connection | 22mm compression |
| Pressure relief valve | 15mm ф |
| Heating flow and return connections | 22mm compression |
| Condensate connection | 22mm plastic pipe |
| Maximum domestic water inlet pressure | 10 bar |
| Minimum domestic water inlet pressure for maximum DHW rate | 1.9 bar |
| Minimum domestic water inlet pressure to operate the appliance | 0.2 bar |
| NOx classification | Class 5 |
| Wall mounting jig | Yes |
| Filling loop | Yes |
| Plug-in timers | Yes (optional) |
| Optimising room temperature controller | Yes (optional) |
| Intelligent controls | Yes (optional) |
| Condensing in DHW mode | Yes |
| SEDBUK value %/band - natural gas | 90.2%/Band A |
| SEDBUK value %/band - LPG | 92.2%/Band A |
Literature
| Product guides and brochures | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| Greenstar gas boiler brochure A guide to our gas boiler range and to choosing the right boiler for your home. |
8 716 109 642 | |||
| Product guide for gas-fired and renewable energy solutions Quick pocket-sized reference for trade professionals on gas boilers and renewables. |
8 716 145 138 | |||
Download (1.93 Mb)
Order a printed copy| Product literature | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| Greenstar CDi service booklet for engineers | 8 716 115 748 | |||
| Guide to re-setting the 'SE' code on Greenstar CDi boilers | 8 716 112 353 | |||
| Installation and servicing instructions for Greenstar CDi (part 1 of 2) | 6 720 614 564 | |||
| Installation and servicing instructions for Greenstar CDi (part 2 of 2) | 6 720 614 564 | |||
| Technical information for gas combi boilers | 8 716 115 773 | |||
| User manual for Greenstar CDi | 6 720 614 059 | |||
| Wall mounting bracket addendum sheet to installation instructions | 6 720 614 232 | |||
| Accessory literature | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| DT10RF Digistat (MK 2) instructions | 8 716 114 477 | |||
| DT10RF Digistat and digistat optimiser (MK 1) instructions | 8 716 106 652 | |||
| DT10RF optimiser (MK 2) instructions | 8 716 114 492 | |||
| DT20 Twin Channel Digital Timer user instructions | 8 716 106 647 | |||
| DT20RF Digital RF thermostat with twin channel programmer (MK 1) instructions | 8 716 106 659 | |||
| DT20RF Digital RF thermostat with twin channel programmer (MK 2) instructions | 8 716 114 478 | |||
| FR10 instructions | 6 720 617 760 | |||
| FR110 instructions | 6 720 617 762 | |||
| FW100 instructions | 6 720 617 763 | |||
| FW100 Quick guide | 6 720 617 764 | |||
| MT10 instructions | 8 716 106 641 | |||
| MT10RF mechanical RF thermostat instruction manual | 8 716 107 486 | |||
| MT10RF user instructions (MK II models from Aug 09) | 8 716 115 752 | |||
| Quick start guide for MT10RF | 8 716 115 007 | |||
| RT10 installation and user manual | 6 720 612 218 | |||
| TD200 installation and user manual | 6 720 612 220 | |||
| Technical information for heating controls | 8 716 115 653 | |||
| Flue literature | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| 60/100mm horizontal flue instruction manual | 8 716 111 256 | |||
| 60/100mm Vertical flue kit instructions | 6 720 611 739 | |||
| 80/125mm 45° flue duct kit instructions | 6 720 641 098 | |||
| 80/125mm 90° flue duct kit instructions | 6 720 641 097 | |||
| 80/125mm flue extension kit instructions | 6 720 641 099 | |||
| 80/125mm horizontal flue instructions | 6 720 611 436 | |||
| 80/125mm vertical flue kit instructions | 6 720 611 740 | |||
PDF files can be read with
Adobe Acrobat Reader
Social media