Technical data
9
e
SECTION 4 INSTALLATION
4.1 DELIVERY
Due to the weight of the appliance it may be
necessary for two people to lift and attach the
appliance to its mounting. The appliance is
contained within a heavy-duty cardboard carton.
Lay the carton on the floor with the writing the
correct way up.
4.2 CONTENTS
Contained within the carton is:
● the boiler
● the fixing jig and wall bracket
● template
● an accessories pack containing appliance
service connections and washers
● the instruction pack containing the installation
& servicing instructions, user instructions,
Benchmark logbook, guarantee registration
card, and a 3-amp fuse
4.3 UNPACKING (see fig. 6)
At the top of the carton pull both sides open – do
not use a knife – unfold the rest of the carton
from around the appliance, carefully remove all
protective packaging from the appliance, and lay
the accessories etc. to one side. Protective
gloves should be used to lift the appliance, the
appliance back-frame should be used for lifting
points.
4.4 PREPARATION FOR MOUNTING THE
APPLIANCE (see fig. 6A)
The appliance should be mounted on a smooth,
vertical, non-combustible surface, which must be
capable of supporting the full weight of the
appliance. Care should be exercised when
determining the position of the appliance with
respect to hidden obstructions such as pipes,
cables, etc.
When the position of the appliance has been
decided, carefully mark the position of the
combined fixing jig and wall- mounting bracket
(see fig. 6A), and – using the template supplied
– mark the position of the flue-hole (if applicable).
4.5 FITTING THE FLUE
The top flue outlet permits both horizontal and
vertical flue applications to be considered,
alternatively, the Vokera twin flue system can be
utilised if longer flue runs are required.
4.5.1 CONCENTRIC FLUE
The appliance Syntesi 25 e can be used with
either the Vokera condensing 60/100mm
concentric flue system or the optional 80/125mm
concentric flue system.
The appliance Syntesi 29 e can only be used
with the 80/125mm concentric flue system.
For concentric flue 60/100 mm see sections 4.5.2
and 4.5.3.
For concentric flue 80/125mm see section 4.5.4.
4.5.2 CONCENTRIC HORIZONTAL FLUE 60/100 mm
The appliance flue outlet elbow can be rotated
through 360° on its vertical axis. In addition the
flue may be extended from the outlet elbow in
the horizontal plane (see 2.9). A reduction must
also be made to the maximum length (see table
below) when additional bends are used.
Fig. 6
230
115
145
151
80
80
20
20
120
6
Fig. 6A
300
1
2
7
80
80
120
20
221
215
20
6
60/100mm system Syntesi 25 e only
80/125mm system Syntesi 25 e - 29 e










