30
Grant Vortex Oil Boilers
Refer to Section 4.11 and 4.12.
Flow connection
The Flow pipework can be routed to either side of the
boiler, dependant on the type and direction of the flue
system used.
On all models, except the 46/58 and 58/70, a push-fit
connector is supplied fitted on the flow connection. On
the 46/58 and 58/70 the flow connection is a 1/¼"
female tapping – refer to Fig.12.
Return connection
On all models, except the 46/58 and 58/70, the return
pipework is connected to the stainless steel pipe
protruding from the right hand side panel using a
compression fitting (not supplied).
On the 46/58 and 58/70 models the return connection
is a 1/¼" female tapping – refer to Fig.12.
On the 15/26 Kitchen and Utility models, holes are provided
in the rear of the casing side panels to allow the return and
condensate pipework to be run through the back of the
boiler. It will be necessary to remove the back panel from the
boiler casing to fit this pipework, and to refit the panel before
placing the boiler in its final position.
Pipe holes
All models except the 46/58 and 58/70 have holes to
enable the pipework to exit the boiler casing. On the
15/26 models these holes are at the rear of both side
panels and on the 26/36 and 36/46 models these holes
in the removable flue outlet cover plates.
On the 46/58 and 58/70 models the flue outlet cover
plates can be repositioned to provide a vertical
‘letterbox’ pipe opening, on either side of the boiler as
required.
To do this, first remove both casing top panels.
Slacken the nuts on the four fixing studs on the side
cover plate to be moved. Slide the plate forwards by
approx 50 mm and re-tighten nuts.
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.
Make the water connections
5.4
5 - BOILER INSTALLATION
1. Lift off upper rear casing panel.
2. Remove the insulation from the underside of the
panel (do not discard it) and remove the blanking
panel. Discard the blanking panel but retain the
nuts and washers.
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
5.5
