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Greenstar Highflow 550CDi

Highflow CDi
Greenstar Highflow CDi boiler

Description

Image of Which 2013 (product pages)

In 2014 and for the fourth year running the entire range of Worcester Greenstar gas boilers have been awarded Which? Best Buy.

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.

Image of 5 year guarantee logo (with extra padding)5 year boiler guarantee until 31st December 2014 (terms and conditions apply). See promo page for details.

10 year guarantee on primary heat exchanger.

Central heating output: 30kW
Domestic hot water flow rate: 25 litres per minute at 30 degree temperature rise (provided adequate mains pressure is available)

Efficiency

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Features and benefits

  • A rated efficiency (SAP 2005 seasonal efficiency)
  • 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

  • Low NOx and CO2 emissions - environmentally friendly

  • 5 year boiler guarantee until 31st December 2013, 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 that meet minimum clearance and access requirements

Technical data table

Technical data
Title Value
Height (mm) 850
Width (mm) 600
Depth (mm) 600
Weight 112kg
SEDBUK value %/band - LPG 92.2%/Band A
SEDBUK value %/band - natural gas 91%/Band A
Hot/cold water connections 22mm compression
DHW flow rate @ 35°C rise 25
Output to central heating 9.7-30.6kw
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)
Min. domestic inlet pressure for max. DHW flow rate (bar) 1.7
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 boilers brochure

Greenstar gas-fired condensing boilers from Worcester. Making a positive difference to your life, your fuel bills and the environment.

8 716 109 642

download icon Download (5.26 MB)

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Product guide for gas boilers and solar heating 8 716 116 713

download icon Download (2.76 MB)

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Product literature
Title/description Part number Order
Benchmark Commissioning Checklist effective from 1st April 2014 6 720 810 989

download icon Download (0.29 MB)

Gas boiler wiring guide 6 720 646 965

download icon Download (18.11 MB)

Greenstar CDi service booklet for engineers 8 716 115 748

download icon Download (5.86 MB)

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Installation and servicing instructions for Greenstar Highflow CDi 8 716 115 219

download icon Download (7.30 MB)

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Tech and spec for Greenstar Highflow CDi. 8 716 106 250

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User manual for Highflow CDi 8 716 115 220

download icon Download (0.52 MB)

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Cylinder literature
Title/description Part number Order
Hot water solutions brochure 8 716 116 834

download icon Download (4.61 MB)

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Accessory literature
Title/description Part number Order
DT10RF optimiser (MK 2) instructions 8 716 115 494

download icon Download (4.68 MB)

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DT20RF Digital RF thermostat with twin channel programmer (MK 2) instructions 8 716 115 495

download icon Download (4.40 MB)

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Installation Instructions for Greenstar System Filter 6 720 803 839

download icon Download (2.12 MB)

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MT10 instructions 8 716 106 641

download icon Download (0.54 MB)

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MT10RF user instructions (MK II models from Aug 09) 8 716 115 752

download icon Download (1.87 MB)

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Operation Instruction DT10RF Mk2 V1 Digistat (Issue A Aug 07) 8 716 114 477

download icon Download (9.34 MB)

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Quick start guide for MT10RF 8 716 115 007

download icon Download (0.33 MB)

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Worcester Greenstar System Filter brochure

Brochure for the Worcester Greenstar System Filter accessory

8 716 116 618

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Flue literature
Title/description Part number Order
60/100 horizontal flue instructions 8 718 682 335

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80/125 horizontal flue instructions (Issue B Sept 08) 8 718 682 354

download icon Download (0.40 MB)

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80/125 vertical flue instructions 8 718 682 355

download icon Download (0.30 MB)

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80/125mm 45° flue duct kit instructions 6 720 641 098

download icon Download (0.18 MB)

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80/125mm 90° flue duct kit instructions 6 720 641 097

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80/125mm flue extension kit instructions 6 720 641 099

download icon Download (0.14 MB)

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Installation and Service instruction Condensfit 2 100mm flue extension (Issue Dec 08) 6 720 617 795

download icon Download (0.16 MB)

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Instruction Telescopic horizontal flue Condensfit 100mm Greenstar HF / FS CDi (Issue A Dec 10) 6 720 646 219

download icon Download (5.90 MB)

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Instruction vertical flue Condensfit 2 100mm Greenstar HF / FS CDi (Issue B Sep 08) 8 718 682 353

download icon Download (0.84 MB)

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Controls literature
Title/description Part number Order
DT10RF Digistat (MK 2) instructions 8 716 115 493

download icon Download (4.24 MB)

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DT20 Twin Channel Digital Timer user instructions (Issue B Nov 04) 8 716 106 647

download icon Download (1.91 MB)

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Operation Instruction DT10RF Mk1 V1 Digistat Optimiser (Issue A Aug 07) 8 716 114 492

download icon Download (1.44 MB)

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Operation Instruction DT20RF Mk2 V1 Digistat (Issue A Aug 07) 8 716 114 478

download icon Download (2.44 MB)

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Tech and spec for heating controls 8 716 115 653

download icon Download (4.41 MB)

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