Condensate Disposal - Grant Vortex 50/90 User, Installation And Servicing Instructions

Only use a soakaway where the soil is porous and
drains easily. Do not use in clay soils or where the
soil is poorly drained.
WARNING: Any damage due to condensate backing
up into the boiler due to a high water table, in the case
of a soakaway, or flooded drains when the condensate
disposal is via a gulley or soil stack, is not covered by
the Grant product warranty.
5.5 Condensate trap
Grant Vortex External Modules 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 Fig. 14.
Overflow warning
outlet
(with cap)
Condensate
outlet to drain
Fig. 14 - Condensate trap
20

5 - CONDENSATE DISPOSAL

32 mm waste pipe external to the building
100 mm Sealed
plastic end
tube
Fig. 13 - Purpose made condensate soakaway
Condensate drain pipe
from boiler
Condensate trap
Grant Vortex External Module
Cement seal
O
2.5 fall
Backfill with 10 mm
limestone chippings
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 right hand side panel - in
an accessible position to allow for routine
maintenance. See Fig. 11.
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.
Ground level
25 mm
300 mm
400 mm
min.
Two rows of 3 x 12 mm
holes at 25 mm centres
and 50 mm from the bottom
of the tube. Holes facing
away from the property.