Controls & Lighting; Draining; Servicing/Maintenance - Saunier Duval SYLVA FF 24 E Installation And Operating Instructions Manual

CONTROLS AND LIGHTING
Starting the boiler
Before starting the boiler, make sure that:
The boiler is connected to the electrical supply
and turned on.
The boiler gas service cock is open.
The pressure gauge reads between 1 and 2 bar.
The boiler is now ready to start
Setting to WINTER mode (Heating and hot water)
Turn the OFF/Summer/Winter selector switch (E) to
the 'Winter' position, see diagram 1.
Turn the central heating temperature control (F)
to the desired setting, see diagram 1.
Turn the domestic hot water temperature control
(D) to the desired setting, see diagram 1.
Make sure that any external controls are calling
for heat.
The boiler will light and proceed to heat up the
integral storage cylinder, after which time, up to
approximately 10 minutes depending on the setting
of the temperature control, the heating system will
begin to heat up.

DRAINING

Protection against freezing
If the boiler is to be out of use for any long periods
during severe weather
recommended that the whole system, including the
boiler, be drained to avoid the risk of freezing.
If in doubt, consult your servicing company.
The SYLVA has a built in frost protection device that
protects the boiler from freezing. If the boiler is to be
left and there is a risk of frost, ensure that the gas
and electrical supplies are left connected and that
the OFF/Summer/Winter switch is left in the 'Summer'
or the 'Winter' position. The frost protection device
will light the boiler when the temperature of the
boiler water falls below 6 C. When the temperature
reaches 16 C, the boiler stops.
Note: This device works irrespective of any room
thermostat setting and only protects the boiler.
Always ensure that adequate frost protection is
given to the entire system where necessary.

SERVICING/MAINTENANCE

To ensure the continued efficient and safe operation
of the boiler, it is recommended that it is checked
and serviced at regular intervals. In particular, the
anode fitted to the domestic hot water storage
cylinder must be checked at least once a year and
replaced as necessary.
The frequency of servicing will depend upon the
installation conditions and usage but, in general,
once a year should be enough.
4
conditions, it is
NOTE: Once the cylinder has reached its' set tem-
perature, the boiler will continue to operate in heat-
ing mode until the cylinder needs topping-up again.
To obtain domestic hot water, open a hot water tap.
Hot water always has priority over central heating.
Setting to SUMMER mode (Hot water only)
Turn the OFF/Summer/Winter selector switch (E) to
the 'Summer' position, see diagram 1.
Turn the domestic hot water temperature control
(D) to the desired setting, see diagram 1.
The boiler will light and proceed to heat up the in-
tegral storage cylinder, after which time, up to ap-
proximately 10 minutes depending on the setting
of the temperature control, the boiler will stop.
NOTE: Once the cylinder has reached its' set tem-
perature, the boiler will remain off until the cylinder
needs topping-up again.
To obtain domestic hot water, open a hot water tap.
Hot water always has priority over central heating.
Draining and filling
Caution: The boiler is installed as part of a sealed
system which must only be drained and filled by a
competent person.
Heating safety valve
CAUTION : A safety valve with a discharge pipe is
fitted to this boiler.
The valve MUST NOT BE TOUCHED except by a com-
petent person. If the valve discharges at any time,
switch the boiler off and isolate it from the electrical
supply. Contact your installation/service company.
Temperature/pressure relief valve
CAUTION: A temperature/pressure relief valve with
a discharge pipe into a tundish is fitted to this boiler.
The valve MUST NOT BE TOUCHED except by a com-
petent person. If the valve discharges at any time,
switch the boiler off and isolate it from the electrical
supply. Contact your installation/service company.
Cleaning
The boiler casing can be cleaned with a damp cloth
followed by a dry cloth to polish.
Do not use abrasive or solvent cleaners.
Boiler casing
CAUTION. Do not remove or adjust the casing in any
way, as incorrect fitting may result in faulty
operation. If in doubt, consult your installation/
service company.