Piping System Installation - Saunier Duval SYLVA FF 24 E Installation And Operating Instructions Manual

PIPING SYSTEM INSTALLATION

Heating system connections - Pipe diam 22 mm
Hot water system connections - Pipe diam 15 mm
Gas connection - Pipe diam 22 mm
Tundish connection - Pipe diam 22 mm
Safety valve discharge - Pipe diam 22 mm
Water connection
Connect the copper tails and isolating cocks
supplied, to the boiler : see diagram 5. Connect
the system pipework to the boiler observing the
correct flow and return format shown in diagram
5.
Safety valve discharge
WARNING. It must not discharge above an
entrance or window or any type of public access
area.
Connect the safety valve discharge pipe to the
boiler, the discharge must be extended using not
less than 15 m o.d. pipe, to discharge in a visible
position outside the building, facing downward
preferably over a drain. The pipe must have a
continuous fall and be routed to a position so that
any discharge of water, possibly boiling or steam,
cannot create any danger to persons, damage to
property or external electrical components and
wiring. Tighten all pipe connection joints.
F : Gas
A : Heating
return
C : Heating
flow
Diagram 5
8
D : Domestic hot
water flow
Gas connection
The supply from the governed gas meter must be
of adequate size to provide a constant inlet working
pressure of 20 mbar (8 in w.g.).
To avoid low gas pressure problems, it is
recommended that the gas supply is connected
using 22 mm pipe.
On completion, the gas installation must be
tested using the pressure drop method and purged
in accordance with the current issue of BS6891.
Gas Safety (Installation and use) Regulations
In your interests and that of gas safety, it is the law
that ALL gas appliances are installed and serviced
by a competent person in accordance with the
above regulations.
B : Cold
water inlet
Flow restrictor, filter
and non return valve