Worcester 35CDI II Service Manual Page 2
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The Greenstar CDi condensing combi boiler series
Total heating and hot water comfort
The Greenstar CDi condensing combi boiler series The advantages of a combi system
25CDi 30CDi 35CDi 40CDi
Output kW
to DHW
Flow rate at 35º 10.2 lt/min 12.3 lt/min 14.3 lt/min 16.3 lt/min
CH temperature control
DHW temperature
control
Modulating control
Natural gas
LPG
Electronic ignition
The Greenstar CDi series at a glance
Min 7.7kW 7.7kW 7.7kW 8.6kW
Max 25kW 30kW 35kW 40kW
The Greenstar CDi condensing combi system layout Installing the Greenstar CDi Series
Greenstar CDi series horizontal fluing options
Greenstar CDi series vertical fluing options
Installation requirements
The Greenstar CDi series accessories
After-sales
Worcester training
The Greenstar CDi
combi series
Adjustable hot water control. User comfort & economy.
Aluminium silicon High efficiency.
heat exchanger.
Boiler keep hot facility. Instantly heated hot water.
SEDBUK Band A. High efficiency.
Wall mounting jig. Allows pre-fabrication
of system.
Compact dimensions. Space saving,
ease of siting.
Modulation control. Energy saving.
Filling link supplied as Labour saving.
standard.
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 & Time saving.
service modes displayed.
Operational status indicator. Consumer friendly.
No bypass required. Labour & money saving.
Pump seizure protection. Prevents callbacks.
Holiday function. More economical.
Service mode. Ease of servicing.
Variable speed pump. Automatically adjusts to
meet system flow demand
– energy saving.
Condensing in DHW mode. Energy saving.
Optional mechanical & Eliminates the need for
digital timeclocks. external wiring.
Radio frequency controlled Eliminates wiring, helps
room thermostat. comply with part L of
Building Regulations and
meets the requirements of
Part P.
Text display option. Intelligent control.
Plug-in RF optimising Easy to install.
controls.
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.
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
combi 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 combi 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 combi 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.
22%
SEASONAL
EFFICIENCY
SEASONAL
EFFICIENCY
<10%
COMBUSTION
PRODUCTS
GREENSTAR CDi
CONDENSING
COMBI BOILER
NEW
CONVENTIONAL
BOILER
78%
GROSS
90%
GROSS
COMBUSTION
PRODUCTS
COMBUSTION
PRODUCTS
COMBUSTION
PRODUCTS
65%
SEASONAL
EFFICIENCY
78%
SEASONAL
EFFICIENCY
90.2%
SEASONAL
EFFICIENCY
GREENSTAR CDi
CONDENSING
COMBI BOILER
NEW
CONVENTIONAL BOILER
OLD
EXISTING BOILER
OLD
EXISTING
BOILER
NEW
BOILER
GREENSTAR CDi
IN CONDENSING
MODE
23,600 kWh
804 therms
19,588 kWh
667 therms
BASED ON
3 BEDROOM
SEMI-DETACHED
HOUSE
27,140 kWh
924 therms
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 2
- The Worcester 1
- 25CDi 30CDi 35CDi 40CDi 2
- The Greenstar CDi 2
- Versatility 3
- Optional plug-in controls 3
- Technical data – CDi series 4
- Installing the 5
- Greenstar CDi series 5
- Bathrooms 6
- General position 6
- RSF horizontal and vertical 6
- Key to illustration 6
- Horizontal RSF Flue 7
- 100mm 125mm 8
- Vertical RSF Flue 9
- Installation requirements 10
- NotesNotes 12
- A Complete 13
- After-sales Service 13
- Worcester 14
- Training Courses 14
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