Technical data

54
The Greenstar Highflow CDi
condensing combi boiler series
The Greenstar Highflow CDi series is part of a market
leading range of energy-saving condensing floor standing
gas-fired combi boilers.
Higher efficiency therefore highly cost effective
All of the new Greenstar Highflow CDi condensing combi
boiler
s are SEDBUK A rated. This means they have an
average annual efficiency of 90.8%, standard efficiency
boilers achieve around 78% efficiency. Therefore by
upgrading to a Greenstar Highflow CDi boiler, consumers
can reduce their gas bills as well as their carbon footprint.
The Greenstar Highflow CDi condensing boiler series
delivers this energy-saving performance by recycling
exhaust gases to extract 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: renowned
Worcester quality and reliability; outputs and flow rates to
comfortably satisfy the heating and hot water demands of
the larger household and all-round value for money.
The Greenstar Highflow CDi
combi series at a glance
Features Benefits
20 & 25 litre/minute Suitable for larger
flow rate family homes
Built-in condensate Increases siting possibilities
pump – 4.5m head
Earth bonding strip Labour and money saving
Roll-in boiler Minimises risk of
damaging floors
Built-in filling link Labour and money saving
Temperature control Consumer-friendly
for CH + DHW and energy saving
Multi-directional Condensfit II Siting flexibility
fluing – compatible with
plume management
Floor mounted Allows pre-filling of system
pre-plumbing jig and no pipe fabrication
required
Electronic ignition Energy saving
Built-in frost Money saving,
protection economical protection
Pump seizure protection Prevents call-backs
Fault finding diagnostics Time saving
Anti-cycle device Energy saving
No ventilation grilles Labour and money saving
required in compartments
Optional plug-in twin No electrician required
channel programmer
Greenstar Greenstar
Highflow Highflow
440CDi 550CDi
Output kW
to DHW
Flow rate at 35ºC Δ T
20l/min* 25l/min*
CH temperature
control
••
DHW temperature
control
••
Natural gas
••
LPG boiler
••
Electronic ignition
••
SEDBUK band A (90.8%) A (90.8%)
Min 7.4kW 9.7kW
Max 29.5kW 41.1kW
*Provided adequate mains water pressure and flow is available – see page 29 for
further details
UNIQUE
NEW
FEATURES
NEW
NEW