Technical data

6 720 611 447 GB (03.11)
14
Installation
Condensate Termination and Route
The appliance has a built-in syphonic condensate trap
eliminating the need for external traps. Connect to the
22mm plastic drain pipe and extend the pipe run away
from the control panel and appliance witha constant fall
of 2.5° or 25mm in every metre. See Fig. 12
The condensate pipe can terminate into any of four
areas:
Fig. 11
Whilst all of the above methods are acceptable it is
always the best practice to terminate the condense pipe
via an internal waste system.This will eliminate the need
for any external condensate pipe runs which can be sus-
ceptible to freezing in extreme weather.
Fig. 12 Recommended route of the condensate drain
External condensate pipework
The syphonic condensate trap collects condensate into
a trap which releases it in 100 ml quantities. This helps
to prevent the discharge from freezing.
If there is no alternative and the condensate pipe has to
be externally run, the following should be considered:
• The pipe run should take the shortest practical route.
• The pipework should be insulated with weather
resistant insulation.
• The pipe should terminate as close as possible to the
ground or drain, whilst still allowing the condensate
to safely disperse. This would prevent wind blowing
up the pipe.
• The pipework should be installed with the minimum
of horizontal runs and with a downward slope of at
least 2.5 °.
3.7 Fitting the appliance
Removing the outer case
B Remove retaining screws (1), see Fig. 13.
B Slide the outer case upwards and forwards to
remove (2).
Fig. 13
Boiler
Boiler
Sink
Ø 22 min.
Ø 22 min.
Ø 22 min.
Ø 22 min.
Siphon
Siphon
75 min. trap
Invert
No length
restriction
No length
restriction
No length
restriction
Internal soil
and vent stack
The gradient of the discharge pipe
should be 2.5¡ (40 mm/m) minimum
The gradient of the discharge pipe
should be 2.5¡ (40 mm/m) minimum
The gradient of the discharge pipe
should be 2.5¡ (40 mm/m) minimum
An internal waste system
An external waste system
The rainwater system
An external purpose made soakaway
The gradient of the discharge pipe should be
2.5¡ (40 mm/m) minimum
Use waterproof pipe work
insulation in very exposed
positions
Open end of pipe
direct into gully,
below ground but
above water level.
Open end of pipe
direct into gully,
below ground but
above water level
Open end of pipe direct
into gully, below ground
but above water level
75 min. trap
450 min.
Siphon
75 min. trap
Boiler
6 720 610 596 -03.2TD
Boiler
Sink
6 720 610 602 - 04.1O
Benchmark: For optimum performance
after installation, this boiler and its asso-
ciated central heating system must be
flushed in accordance with the guide-
lines given in BS5793:1992 “Treatment
of water in domestic hot water central
heating systems”.
i
The outer case is secured against unau-
thorised removal by a retaining bracket
(electrical safety) at the bottom left. Al-
ways secure the outer case with this
bracket again after refitting.
.
1
2
6 720 610 597 -10.T
D