1
installation
N
ote
: t
he
flue
must
Not
be
iNstalled
iN
a
place
likely
to
cause
a
NuisaNce
aNd
positioNed
to
eNsure
that
products
of
combustioN
do
Not
discharge
across
a
bouNdary
It may be necessary to protect the terminal with
a guard, if this is the case it will be necessary to
purchase a stainless steel terminal guard. Reference
should be made to the Building Regulations for
guidance.
Ventilation
The room in which the boiler is installed does not
require specific ventilation. If the boiler is installed
in a cupboard or compartment, ventilation is not
required for cooling purposes.
Gas Supply
The gas installation and tightness testing must be
in accordance with the requirements of BS6891.
Ensure that the pipe size is adequate for demand
including other gas appliances on the same supply.
Electrical Supply
The appliance requires an earthed 30V - 50 Hz
supply and must be in accordance with current
I.E.E. regulations. It must also be possible to be
able to completely isolate the appliance electrically.
Connection should be via a 3 amp double pole
fused isolating switch with contact separation of
at least 3mm on both poles. Alternatively, a fused
3 amp, 3 pin plug and unswitched socket may be
used, provided it is not used in a room containing a
bath or shower, it should only supply the appliance.
Automatic by pass
Ariston recommend that an automatic by pass is
installed a minimum of 1.5 metres away from the
boiler to ensure the minimum required flow rate
is achieved at all times. Additionally the design
of the system and its controls must ensure that
an adequate temperature differential is met, and
should be such to prevent boiler cycling.
- A Directly above or below an opening, window, etc
300 mm
- B Horizontally to an opening, window, etc
300 mm
- C Below gutters, soils pipes or drain pipes
75 mm
- D Below eaves
00 mm
- E From vertical drain pipe or soil pipe
75 mm
- F From internal or external corner
300 mm
- G Above ground, roof or balcony level
300 mm
- H From a surface facing the terminal
500 mm
- I From a terminal facing a terminal
500 mm
- J Vertically from a terminal on the same wall
1500 mm
- K Horizontally from an terminal on the same wall
300 mm
- L Fixed by vertical flue terminal
The minimum acceptable clearances are shown below: