Condensate
Disposal
21
5.6 Condensate Trap
Grant SPIRA condensing boilers are
supplied with condensate trap. This
trap must be used. No alternative trap
should be used in place of the trap
supplied with the boiler. The 1¼” BSP
female condensate outlet connection is
located at the rear of the boiler.
Fit the 1¼” 311 fitting (supplied) into
this connection. Using the elbow and
pipe (supplied), connect the trap to the
condensate outlet on the boiler, as
shown in Figure. 5-2.
A condensate discharge pipe with a
minimum diameter of 38mm (1½”) must
be fitted to the outlet connection at the
base of the trap.
In all cases the overflow pipe (see
Figure 5-2) must be fitted to the trap
and the end left open. This will protect
the boiler from becoming blocked with
condensate in the event of the
condensate discharge pipe blocking or
frozen.
If connecting the condensate
discharge into a waste system or soil
stack, either internally or externally, a
second trap must be fitted in the
condensate discharge pipe. This trap
must provide the required 75mm water
seal. It must be located between the
boiler condense trap and the
connection to the soil stack, in a
position accessible for checking and
cleaning.
5.7 Inspection and Cleaning
of Trap
The boiler condensate trap (and any
second trap fitted) must be checked at
regular intervals (e.g. on every annual
service) and cleaned as necessary to
ensure it is clear and able to operate.
Figure 5-1: Purpose made condensate soakaway
Figure 5-1: ????
All condensate pipework must be
adequately protected against
freezing, however if the condensate
pipe is frozen, water will build up
and discharge through the overflow
on the trap.
!
CAUTION
Failure to regularly check and clean
the condensate trap (or traps) may
result in damage to the boiler and
this will not be covered by the
product warranty.
!
CAUTION
32mm waste pipe
externasl to the building
Cement seal
Ground level
100mm plastic tube
Sealed end
Backfill with 10mm
limestone chippings
Four rows of 3x12mm holes at
25mm centres and 50mm from
bottom of the tube. Holes
facing away from the property
25
2.5˚ fall
400
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