31
Grant Vortex Eco Utility Oil Boilers
1 Carefully remove the packaging from the boiler
and remove it from the transit pallet.
2 Pull the front panel forward at the top to disengage
the fixing clips then lift it up and off the boiler.
Remove the literature packs. Give the User
Information pack to the householder.
3 Lift off the case top panel(s) and remove the water
connecting fittings.
Unpack the boiler
6.1
Prepare the wall
6.2
6 - BOILER INSTALLATION
See Fig. 17 and 17a
If the boiler is to be used with a low level balanced
flue (Yellow system) make the hole in the wall for the
flue as shown in Fig. 17.
Note: Dimension B given in Fig. 17a includes an
extra 10 mm over the size of the terminal to provide
clearance for fitting.
Fig. 17a - Low level balanced flue (Yellow System) and Starter kit (Green System)
Fig. 17 - Low level balanced flue
Side wa
ll
Rear wa
ll
Note: This dimension is given with
the boiler pushed back against
the rear wall. Any clearances
must be added to it.
Holetobe
cutinwall
Boiler
centre line
Outline
of boiler
Rear exit
Side exit
C
C
A
A
B
15/21 and 21/26
26/35
C
768
780
Dimension (mm)
Model
A dia
127
162
B
115
115
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