Technical data

54
The Greenstar CDi condensing
regular & system boiler series
It’s often said that you can’t please everybody all of the
time – but the advanced new series of Greenstar CDi
Conventional and system condensing boilers from
Worcester has so much to offer that it’s already disproving
such a notion.
Here is a ground-breaking range of energy-saving boilers
which is very good news for the environment and excellent
news for specifiers, developers, installers and consumers
alike.
HE stands for Higher Efficiency and for
Highly Cost Effective
The Greenstar CDi condensing boilers have an average
annual efficiency (SEDBUK value) of over 90%, efficiently
producing heat for your heating and/or hot water system.
Other types of boiler achieve around 78% efficiency.
Therefore, compared with a new conventional boiler,
Greenstar CDi condensing boilers can cut heating and hot
water bills and it’s cheaper to run than an older boiler.
Hence SEDBUK Band A ratings for all models in the new
Greenstar CDi condensing range.
Greenstar CDi condensing boilers deliver this energy-saving
performance by ingeniously recycling exhaust gases to
extract and re-use the latent heat – a highly efficient use of
energy which also significantly reduces carbon dioxide
emissions into the atmosphere.
To all these major benefits you can add yet more:
superlative Worcester quality and reliability; a range of
outputs to satisfy the heating demands of a range of
households; and truly exceptional all-round value for money.
The Greenstar CDi regular
& system series at a glance
30CDi 40CDi 30CDi
Conventional Conventional System
Output kW
to DHW
Primary temperature
control
•••
Modulating control
•••
Natural gas
•••
LPG
•••
Electronic ignition
•••
SEDBUK band
AAA
Min 7.7kW 9.4kW 7.7kW
Max 30kW 40kW 30kW
Features Benefits
Aluminium silicon heat High efficiency
exchanger
SEDBUK Band A High efficiency –
money saving
Wall mounting jig Allows pre-fabrication
of system
Compact dimensions Space saving, ease of siting
Anti-cycle control Energy saving
Electronic ignition Energy saving
Built-in frost protection Money saving,
economical protection
Multi-directional fluing Siting flexibility
No ventilation grilles required Money and labour saving
for compartment installations
Fault finding diagnostics and Time saving
service modes displayed
Operational status indicator Consumer friendly
Class 5 NOx levels Environmentally friendly
Variable pump speed* Automatically adjusts to
meet system flow demand
Intelligent System Package* No electrician required
Pump seizure protection* Prevents call backs
*30CDi System boiler only
BBT1253 G_CDi Rg+Sys TS c08_07 25/6/07 09:21 Page 4