33
Grant Vortex Eco Utility Oil Boilers
Refer to Section 4.11 and 4.12 and Fig. 12. for the size,
type and position of the connections.
The Flow and Return pipework can be routed to either
side of the boiler, dependant on the type and direction
of the flue system used.
For condensate disposal pipework refer to Section 5.
IMPORTANT: All pipes to be fitted into the push-fit
connectors provided should be cut using a pipe slicer
or pipe cutter - to leave the pipe ends with a slight
radius and free from any burrs or sharp edges. Pipes to
be used with these fittings should not be cut square
using a hacksaw.
Pipe entry/exit holes in case
All models have holes to enable the pipework to exit
the boiler casing. On the 15/21 and 21/26 models these
holes are pre-cut knock-outs located at the rear of both
side panels and on the 26/35 model these pre-cut holes
are in the removable flue outlet cover plates.
Push out the 'knock-out' from the required holes,
taking care not to distort the side panel.
If access will be restricted, make any connections to
the boiler before placing it in its final position.
If using a balanced flue system - Install the balanced flue
system before connecting the heating system pipework to
the boiler. Once the flue system is fitted then complete the
water connections and fill the heating system.
If using a conventional flue system - Complete the
water connections and fill the heating system.
Check all connections for leaks and rectify as necessary.
If the Grant sealed system kit is fitted, refer to Section
6.6 for details on filling and venting the sealed heating
system.
Make the water connections
6.4
6 - BOILER INSTALLATION
1. Lift off upper rear casing panel.
2. Remove the insulation from the underside of the
panel (do not discard it). Carefully press out the
pre-cut flue opening in the top panel.
3. Unscrew the protective covers from the studs on
the flue dress panel supplied in the literature pack.
Place the dress panel in position in the rear casing
top panel and secure in place using the nuts and
washers previously removed.
4. Re-fit the insulation to the panel with the foil
surface facing outwards. With a sharp knife cut
around the edge of the round opening in the dress
plate to leave a round hole through the insulation
for the flue.
5. If the Grant ‘Orange’ flue system is being used –
follow the instructions supplied with the flue kit.
6. If the Grant ‘Green’ system (100 mm rigid twin-
wall flue) is to be fitted to the boiler then the Grant
CF adaptor kit (Ref. CFA15/70) must be used –
refer to Section 4.1. To fit the adaptor kit, proceed
as follows.
7. Fully screw the length of threaded studding
(provided in the kit) into the nut located in the
centre of the boiler flue outlet.
8. Fit the boiler connector (from the CF adaptor kit)
over the threaded studding. Position flange on to
the neoprene gasket around the boiler flue outlet,
ensuring that small spigot on the base of the
connector is located in the hole in the centre of the
neoprene gasket and that end of studding passes
through the hole in the of the spacer bracket. Fit
washer and wing nut provided onto end of threaded
studding and secure connector in position by
tightening down on wing nut – as shown in Fig. 21.
9. Re-fit the rear top casing panel to the boiler –
fitting it over the boiler connector.
10. Fit the flue adaptor (from the adaptor kit) into the
boiler connector. Note lubricate the seal on the
adaptor using the lubricant provided before
attempting to fit the flue adaptor.
11. Fit the first section of flue into the flue adaptor and
secure using the clamp band provided.
12. Assemble the remainder of the flue system as
required, lubricating the seal on each component
before fitting.
Connect a conventional flue
6.5
Fig. 19 - Boiler flue connector
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