Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18 Service Manual Page 8

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*Subject to conditions
Greenstar Heatslave II boiler range
Greenstar internal models are ideally suited for installation
around the home.
The Greenstar Heatslave II internal boilers feature:
Installer-optimised hydraulic connections
Cross-fi ring burner
Renowned Worcester reliability
Same class-leading footprint as previous Heatslave models,
creating less disturbance in replacement installations
Front access for routine servicing, including a pivoting
expansion vessel for ease of access to the combustion
chamber and one-piece baffl es
Pre-wired electrical mains connection
Easily accessible oil inlet valve
Reduced boiler weight
Modern cabinet design
The option to add a range of digital programmers,
including RF options, to give fully automatic control,
eliminating the need for external wiring of a programmer
Weather and load compensation options enabling the
boiler fl ow temperature to be varied in accordance with
demand, allowing greater effi ciency and comfort
A pre-heated thermal store which provides the user with
instant hot water
Unique pull-out control panel with LCD display and
diagnostic information
The Heatronic 4i boiler control unit intelligently responds
to heating and heat water demands, reducing burner
rings and transferring surplus heat from central heating
demands to the thermal store
10 year guarantee on the plate heat exchanger*
5 year guarantee on Worcester primary heat exchanger*.
Greenstar Heatslave II External
Where space in the home is at a premium a Greenstar
Heatslave II External boiler is the ideal solution.
Whilst offering many of the operating features of Heatslave II
internal models, Heatslave II External boilers also feature:
A robust, durable external cabinet that blends in with the
garden and allows for a long life expectancy
IP45 Ingress Protection – protecting the boiler from water,
dust and external elements
A pre-wired mains lead with a plug allows easy isolation of
the boiler during maintenance
A built-in frost thermostat which protects the appliance
from freezing
An internal pull-out control panel which contains the boiler
heating and hot water temperature controls as well as a
lockout indicator, mode indicator and mode switch
The same performance features as the internal counterparts
All External combi boilers are now supplied complete
with fl ue.
Effi ciency and environmental features
Excellent energy performance
A design which has the ErP Directive in mind
ErP ‘A’ rated for heating and ErP ‘B’ rated for
hot water
The opportunity to improve SAP performance with
weather compensation
30ºC minimum heating return temperature for maximum
condensing effi ciency
ECO hot water mode
Accepts pre-heated hot water from low carbon heating
technologies such as solar thermal and biomass.
Key features of the range
On the primary
heat exchanger*
On the secondary
heat exchanger*
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