7219717 - 02 (08/15)
EcoBlue Heat
29
Before Installation
5
9. If the boiler is fitted in an unheated location the entire
condensate discharge pipe should be treated as an external run
and sized and insulated accordingly.
10. In all cases discharge pipe must be installed to aid disposal
of the condensate. To reduce the risk of condensate being
trapped, as few bends and fittings as possible should be used
and any burrs on cut pipe removed.
11. When discharging condensate into a soil stack or waste
pipe the effects of existing plumbing must be considered. If soil
pipes or waste pipes are subjected to internal pressure
fluctuations when WC's are flushed or sinks emptied then back-
pressure may force water out of the boiler trap and cause
appliance lockout.
12. A boiler discharge pump is available, ‘MULTIFIT’
part no. 720648301. This pump will dispose of both condensate
& high temperature water from the relief valve. It has a
maximum head of 5 metres. Follow the instructions supplied
with the pump.
13. Condensate Drain Pipe ‘Trace Heating’ Elements are
available in various lengths. ‘MULTIFIT’ part nos.:-
1 metre 720644401
2 metre 720664101
3 metre 720664201
5 metre 720664401*
*Where the drain is between 3 & 5 metres a 5 metre kit can be
used and “doubled back” upon itself.
14. It is possible to fit the element externally on the condensate
drain or internally as detailed in the instructions provided.
15. The fitting of a ‘Trace Heating’ Element is NOT a substitute
for correct installation of the condensate drain. ALL
requirements in this section must still be adhered to.
Boiler
2.5° Minimum fall
iii) Termination to a drain
or gully
Boiler
500mm min
2.5° Minimum fall
iv) Termination to a purpose made
soakaway
Holes in the soak-away must
face away from the building
50mm per metre
of pipe run
50mm per metre
of pipe run
Further specific requirements for
soakaway design are referred to in
BS 6798.
Pipe must terminate above water level
but below surrounding surface. Cut
end at 45°
Boiler
v) pumped into an internal discharge branch
(e.g. sink waste) downstream of the trap
Pipe must terminate
above water level but
below surrounding
surface. Cut end at 45°
2.5° Minimum fall
50mm per metre of pipe run
Condensate Pump
Sink
Basement or
similar
(heated)
Boiler
vi) pumped into an external soil & vent pipe
2.5° Minimum fall
50mm per metre of pipe run
Condensate
Pump
Unheated Location
(e.g. Garage)
Basement or similar
(heated)
Boiler
2.5° Minimum fall
50mm per metre of pipe run
Pipe must terminate
above water level but
below surrounding
surface. Cut end at 45°
The ‘Trace Heating’ element must be installed in
accordance with the instructions supplied.
External runs & those in unheated locations still
require insulation.
vii) to a drain or gully with extended
external run & trace heating
5m
5m
