Technical data

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The Greenstar CDi condensing
combi boiler – inside story
Installing the
Greenstar CDi series
All combi boilers require less installation time than a conventional
boiler, for these reasons:
1. All the major components, including the pump, are contained
within the boiler casing and do not need to be fitted separately.
2. The boiler comes pre-wired and pre-plumbed.
3. There is no need to install a hot water cylinder.
4. There is no need to install a storage tank in the roof space.
5. There is less pipe work.
However, the Greenstar CDi series is exceptional for its number of
additional time-saving installation features:
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Automatic gas pressure adjustment
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Unique and highly versatile multi-directional fluing system
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Combined ignition and control board means less connections
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Plug in filling loop as standard
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Optional plug in timers
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No bypass required
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Optional Intelligent Combi Package
Siting of appliance
General
The appliances are not suitable for external installation.
The wall on which the boiler is to be mounted should be capable
of supporting an overall weight of approximately 50 kg.
The wall does not require special protection. However, if the
appliance is to be fitted in a timber frame building the guidelines
laid down in BS 5440:Part 1:2000 and the gas installer manual
Chapter 11, “Gas in Timber Frame Housing” should be adhered to.
The appliances may be installed into an airing cupboard if required.
Use a non-combustible perforated material (max. hole sizes of
13mm) to separate the boiler from the airing space.
Clearances
The minimum clearances shown below should be allowed for
installation, servicing and ventilation-free compartment installations.
960mm
450mm
Using 100mm flue kit
- 1,112mm
Using 125mm flue kit
- 1,152mm
1. Aluminium/Silicon WB5 Heat Exchanger
2. Pre-mix Fan
3. Circulating Pump
4. Pressure Gauge
5. Down Firing Low Nox Burner
6. Plate DHW Heat Exchanger
7. Automatic Air Vent
8. Gas Valve
9. Expansion Vessel
10. Syphon
11. Diverter Valve
12. Drain Point
13. On/Off Button
14. Central Heating Temperature Control
15. Domestic Hot Water Temperature Control
16. Digital Display
Key to components
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3
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Compartment installation
The appliance may be installed in any room, although particular
attention is drawn to the requirements of the IEE regulations
applicable and in Scotland the electrical provisions with respect to
installation in a room containing a bath or shower.
Wall preparation
The picture shows the CDi wall mounting jig which enables a
simple and straightforward method of attaching the boiler to the
wall surface.
After fixing the jig to the wall, the appliance can be lifted onto the
jig and the union connections tightened. The pipe work can be
routed behind the boiler without the need for an additional wall
spacing frame.
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Condensate disposal
All condensing boilers generate condensate discharge which
needs to be piped away from the appliance in via a plastic pipe.
The amount of condensate generated depends on the efficiency
and operating status of the appliance. The boilers will generally
only produce condensate whilst operating in central heating mode.
Some models will condense in both heating and hot water modes
and can generate up to 2 litres of condensate water an hour.
BBT180 Gstar CDi T&S Iss B 4/5/06 12:50 Page 8