Technical information

requirements thus increasing the number of
possible suitable locations.
The EC25 Compact models may be
installed on the inner face of an external
wall and some internal walls providing they
are flat, vertical, of a non-combustible
material and are capable of supporting the
weight of the boiler and any other ancillary
equipment.
Where installation will be in an unusual
location, special procedures may be
necessary. Detailed guidance on this
subject can be found in BS. 6798.
13.1 Timber Framed Dwellings

When installing the EC VCO
MODELS into a timber framed dwelling, it
must be fitted in accordance with the British
Gas publication ‘Guide for Gas Installations
in Timber Framed Housing’ ref. DM2.
For further advice contact the eco hometec
Technical Helpline.
Figure 2 Pipework Connections
14. Hydraulic Connections
14.1 First Fixing Pipe-work
All the pipe-work and wiring connections
enter at the bottom of the unit. To ensure a
tidy installation it is important to consider at
the first fixing stage the order you arrange
the pipe-work and if applicable any cable
trunking.
Figure 2 shows the order in which to fix the
pipe-work.
14.2 Connections
1. Gas
2. Heating Return
3. Heating Flow
4. Domestic Hot Water (Combi)
5. Cold Mains Water (Combi)
6. Flow to Hot Water Cylinder
7. Return Hot Water Cylinder
14.3 Clearances
For ease of installation, necessary
inspection and commissioning, the following
clearances are recommended. To help
determine best location use dimensions
from figure 6.
Table 9. Minimum Clearances
Sides 50mm
Above 250mm
Below 150mm
Front 455mm
Page 16
ECO HOMETEC
(
UK
)
LTD
.