Greenstar Highflow 440CDi
Description
The Greenstar Highflow CDi combi boilers are floor-standing. These boilers have been specifically developed for larger two bathroom properties where there is a heavier requirement for heating and hot water.
Greenstar Highflow CDi boilers incorporate many of the operating features of our wall-mounted combis and can be used with mechanical, digital, wireless and new-generation intelligent controls.
For further peace of mind, every boiler in Worcester’s Greenstar gas and LPG condensing boiler range has been awarded a Which? Best Buy accreditation.
5 year boiler guarantee until 30th June 2012 (terms and conditions apply). See promo page for details.
10 year guarantee on primary heat exchanger.
Central heating output: 29kW
Domestic hot water flow rate: 20 litres per minute at 35 degree temperature rise (provided adequate mains pressure is available)
Efficiency
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Features and benefits
- Best official boiler efficiency rating (SEDBUK band A)
- Suitable for larger family homes with multiple bathrooms
- Both hot water and central heating temperatures can be controlled
- Floor-standing boiler
Multi-directional fluing offers siting flexibility
5 year boiler guarantee until 30th June 2012, terms and conditions apply (standard guarantee: 2 years)
- 10 year guarantee on primary heat exchanger
5 year anti-scale guarantee on domestic hot water heat exchanger
Mechanical, digital and new generation intelligent controls are all compatible
- Optimising 7-day programmable room thermostat available
- 24 hour programmable room thermostat available
- Built-in condensate pump - 4.5m head increases siting possibilities
- Earth bonding strip saves labour and money
- Roll-in boiler minimises risk of damaging flooring
- Built-in filling link saves money and labour
- Temperature control for CH and DHW
- Floor mounting pre-plumbing jig
- Built-in frost protection
- Electronic ignition
- Pump seizure protection
- Fault finding diagnostics
- Anti-cycle device
- No ventilation grilles required in compartments
Technical data table
| Technical data | |
|---|---|
| Title | Value |
| Hot/cold water connections | 22mm compression |
| Height (mm) | 850 |
| Width (mm) | 600 |
| Depth (mm) | 600 |
| Weight | 112kg |
| DHW flow rate @ 35°C rise | 20 |
| Output to central heating | 7.4 - 29.2kw |
| Maximum horizontal flue (100mm Ø) | 4,000 |
| Maximum vertical flue (100mm Ø) | 6,400 |
| Maximum horizontal flue (125mm Ø) | 13,000 |
| Maximum vertical flue (125mm Ø) | 15,000 |
| Condensate disposal pump | Yes |
| Gas connection | 22mm compression |
| Pressure relief valve | 15 |
| Heating flow and return connections | 22mm compression |
| Condensate connection | 22mm plastic pipe |
| Primary water content | 51L |
| NOx class | Class 5 |
| Floor mounted pre-plumbing jig | Yes |
| Fault diagnostic display | Digital |
| Plug-in timers | Yes (Optional) |
| Night set back module | Yes (Optional) |
| Optimising room temperature controller | Yes (Optional) |
| SEDBUK value %/band - natural gas | 90.8%/Band A |
| SEDBUK value %/band - LPG | 92.2%/Band A |
| Min. domestic inlet pressure for max. DHW flow rate (bar) | 1.5 |
| Min. domestic inlet pressure to operate the appliance (bar) | 0.5 |
| Max. domestic inlet pressure (bar) | 10 |
| Filling Link | Yes |
Literature
| Product guides and brochures | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| Greenstar gas boiler brochure A guide to our gas boilers and choosing the best boiler for your home. |
8 716 109 642 | |||
| Product guide for gas boilers and solar heating Quick pocket-sized reference for trade professionals on gas boilers and solar water heating. |
8 716 116 255 | |||
Download (1.24 Mb)
Order a printed copy| Product literature | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| Gas boiler wiring guide | 6 720 646 965 | |||
| Greenstar CDi service booklet for engineers | 8 716 115 748 | |||
| Installation and servicing instructions for Greenstar Highflow CDi | 8 716 115 219 | |||
| Tech and spec for Greenstar Highflow CDi. | 8 716 106 250 | |||
| User manual for Highflow CDi | 8 716 115 220 | |||
| Accessory literature | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| DT10RF Digistat (MK 2) instructions | 8 716 115 493 | |||
| DT10RF Digistat and digistat optimiser (MK 1) instructions | 8 716 106 652 | |||
| DT10RF optimiser (MK 2) instructions | 8 716 115 494 | |||
| 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 | 8 716 115 495 | |||
| 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 | |||
| Tech and spec for heating controls | 8 716 115 653 | |||
| Flue literature | ||||
|---|---|---|---|---|
| Title/description | Part number | Order | ||
| 60/100 horizontal flue instructions | 8 718 682 335 | |||
| 60/100 vertical flue instructions | 8 718 682 353 | |||
| 80/125 horizontal flue instructions | 8 718 682 354 | |||
| 80/125 vertical flue instructions | 8 718 682 355 | |||
| 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 | |||
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