The room must be dry and protected from
frost.
All eco hometec appliances are condensing
and pluming at the flue is a normal
occurrence. Flue terminal positions where
this, or the noise of flue gases discharging
from the flue could be a nuisance must be
avoided.
Normally no part of the appliance, other
than the water pipe-work (85
0
C) and flue
pipe (75
0
C), will exceed 65
0
C. However, any
combustible material near to the boiler or its
flue system and water pipe-work must be
protected to ensure it does not exceed
65
0
C.
In certain locations the flue outlet may
be susceptible to high winds or air
turbulence. Sudden gusts may create a
negative flue pressure. Flue terminal
outlets in such exposed conditions should
be avoided. When operating at low fan
speeds flame lift may occur. This can be
overcome by raising the minimum fan
speed.
It is advisable when installing
the boiler to use an eco hometec P.P.S.
plastic concentric flue system. This not only
ensures that there is sufficient combustion
air, but also reduces room ventilation
requirements thus increasing the number of
possible suitable locations.
The EC VCO 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.
15.1
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.
16. Hydraulic
Connections
16.1
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 7 shows the order in which
to fix the pipe-work.
Figure 7
Pipe-work Layouts
16.2
Type ‘H’ Connections
1) Cable Gland
2)
Syphon Flush (No permanent
connection required)
3) Heating Flow ~ 22mm
4) Additional Cable Entry Point
5) Not applicable to H model
6) Gas Inlet ~ 15mm.
7) Not applicable to H model
8) Heating Return ~ 22mm.
9) Condensate Discharge ~ ¾ M.I.
16.3
Type ’HS’ Connections.
1) Cable Gland
2)
Syphon Flush (No permanent
connection required)
3) Heating Flow ~ 22mm
4) Additional Cable Entry Point
5) Flow Domestic Hot Water 22mm
6) Gas Inlet ~ 15mm
7) Return Domestic Hot Water 22mm
8) Heating Return ~ 22mm
9) Condensate Discharge ~ ¾ M.I.
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eco hometec (uk) ltd.
