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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.
The condensate trap for the Boiler House
models is supplied loose in the burner
box and needs to be fitted as shown in
Figure 6-3.
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 on the inside of the left
side panel) in an accessible position to
allow for routine maintenance.
If required, this condensate trap may
be re-located outside the boiler casing.
Refer to procedure given in Section 6.9.
This procedure must be carried out
before the boiler is installed.
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
the trap is re-located outside the boiler
then the following applies:
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.
Care should be taken when siting the
trap such that the overflow outlet is
readily visible and that any condensate
overflowing from the outlet cannot cause
either a hazard to persons or damage to
surrounding property or equipment.
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.
6.7 Condensate disposal Pipework
This discharge pipe can exit through the
left side of the boiler through one of two
pre-cut 'knock-outs' in the lower part
of the left casing panel (see to Figures
2-1 to 2-4). Push out the 'knock-out'
from the required hole taking care not to
distort the side panel.
The outlet of the trap will accept 21.5
mm to 23 mm OD Polypropylene
overflow pipe for the condensate
discharge pipe.
When connecting plastic discharge
pipe, ensure that the pipe is fully
pushed into the outlet end on the
flexible hose to prevent the possibility
of leakage.
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.
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.
Condensate
d
isposal
NOTE
!
NOTE
!
CAUTION
!
Condensate
trap
Condensate
outlet to
drain
Overflow
warning
outlet
(with cap)
Condensate
drain pipe
from boiler
Figure 6-2:
Condensate trap - Kitchen/Utility models
Condensate
drain from boiler
Minimum 2.5° fall
Overflow warning
outlet (with cap)
Condensate trap
Condensate
outlet to drain
Wall bracket
Figure 6-3:
Condensate trap - Boiler House models
