Condensate Trap; Condensate Disposal Pipework; Inspection And Cleaning Of Trap - Grant Vortex Pro Installation & Servicing Instructions Manual

6.6 Condensate Trap

Grant VORTEx Pro boilers are supplied
with a factory-fitted condensate trap to
provide the required 75 mm water seal in the
condensate discharge pipe from the boiler.
This trap incorporates a float (which will
create a seal when the trap is empty) and
an overflow warning outlet (fitted with a
plastic sealing cap), see Figure 6-2.
The trap is factory-fitted inside the boiler
casing, mounted in the rear of the boiler
(opposite end to the burner) on the inside
of the side panel, see Figure 6-2.
!
NOTE
Access must be available to allow for
routine maintenance.
A flexible hose connects the outlet of
the condensing heat exchanger to the
trap inlet. Ensure the straight connector
on the hose is fully pushed onto the 'top
hat' inlet connector of the trap.
With the trap fitted inside the boiler
casing, the sealing cap must be fitted.
If connecting the condensate discharge
(either internally or externally) into a
waste system or soil stack - the sealing
cap must be fitted in the trap outlet.
On external discharge systems to a hopper,
gully or soakaway, the sealing cap should
be removed from the trap outlet.
If there is any discharge of condensate from
the overflow outlet, this could indicate a
blockage (possibly due to freezing). Turn
off the boiler and investigate the cause. If
necessary contact your service engineer
for assistance.
The condensate trap outlet is at an
angle of 48° below the horizontal. This
is to automatically give a 3° fall on any
'horizontal' runs of condensate disposal
pipe. Refer to Figure 6-2.
18

6.7 Condensate disposal Pipework

The outlet of the trap will accept 21.5 mm
to 23 mm OD Polypropylene overflow pipe
for the condensate discharge pipe.
Possible routes for disposal pipework
The boiler enclosure has several 50 mm
diameter openings in both the sides and
base. These are designed to allow pipework
to pass through, to suit the installation.
These openings can be used to allow the
condensate disposal pipe to exit the casing
in one of the following ways:
Side outlet – The lower opening on
either side of the enclosure can allow the
condensate disposal pipe to be installed
as follows:
• Connection to an internal stack – passing
back through the wall of the house.
• Connection to an external soil stack
adjacent to the boiler.
• Discharge into an adjacent (external)
drain or gulley.
• Discharge into a soakaway – with pipe
either above or below ground level.
Bottom outlet – There are three
openings in the base that can allow the
condensate disposal pipe to be installed
as follows:
• Discharge into a drain or gulley
beneath the boiler (e.g. drain built in to
the concrete base for the boiler).
• Discharge into a soakaway – with pipe
below ground level.
When connecting plastic discharge
pipe, ensure that the pipe is fully
pushed into the outlet end on the
flexible pipe to prevent the possibility
of leakage.
!
NOTE

6.8 Inspection and Cleaning of Trap

The trap must be checked at regular
intervals (e.g. on every annual service)
and cleaned as necessary to ensure that
it is clear and able to operate.
The bottom bowl is sealed to the trap
body and cannot be removed.
To inspect and clean the trap:
1. Disconnect flexible condensate hose
from inlet connector.
2. Unscrew the inlet connection nut.
3. Remove the inlet connector and nut
from trap.
4. Remove trap from bracket.
5. Remove float from trap – clean if
necessary.
6. Inspect inside of trap and clean as
necessary.
7. Re-assemble trap, re-fit to boiler and
re-connect flexible hose. Ensure that
hose is fully pushed onto the trap
inlet connector.
CAUTION
!
Failure to regularly check and clean
the condensate trap may result in
damage to the boiler and will not be
covered by the Product Warranty.
Figure 6-2: Condensate trap (rear panel removed)
Flexible hose
from outlet of
condensing
heat exchanger
Condensate
trap
Sealing cap
must be fitted
Condensate
outlet to drain