Dimensions; Heating System Design - Saunier Duval Themaclassic F30E Instructions For Use Installation And Servicing

The Themaclassic is delivered in three
separate packages:
• The boiler
• The fixing jig and hanging bracket
• The flue system
Net lift weight (boiler only)
Themaclassic F30E
Themaclassic F30E SB
Gross lift weight (boiler and packaging)
Themaclassic F30E
Themaclassic F30E SB
• The Themaclassic is for use only with sealed central heating
systems.
• Heating surfaces may consist of radiators, convectors or fan
assisted convectors.
• The safety valve is an integral part of the boiler and it cannot
be adjusted.
• The circulation pump is integral with the boiler.
• Pipe sectional areas shall be determined in accordance with
normal practices, using the output/pressure curve
(diagram 1.1). The distribution system shall be calculated in
accordance with the output requirements of the actual system,
not the maximum output of the boiler. However, provision shall
be made to ensure sufficient flow so that the temperature
difference between the flow and return pipes be less than or
equal to 20°C. The minimum flow is 500 l/h.
• The system can be fitted with a lockable balancing valve if
necessary in the main flow or return pipes shown as valve 'A'
in diagram 3.1.
• The piping system shall be routed so as to avoid any air
pockets and facilitate permanent venting of the installation.
Bleed fittings must be provided at every high point of the system
and on all radiators.
• The total volume of water permitted for the heating system
depends, amongst other things, on the static head in the cold
condition. The expansion vessel on the boiler is pressurised at
0.5 bar and allows a maximum system volume of 110 litres for
an average temperature of 75°C and a maximum service
pressure of 3 bar. This pressure setting can be modified at
commissioning stage if the static head differs. An additional
expansion vessel can be fitted to the system if required, see
diagram 3.1.
• Provision shall be made for a drain valve at the lowest point of
the system.
• Where thermostatic radiator valves are fitted, not all radiators
must be fitted with this type of valve, and in particular, where the
room thermostat is installed.
4000122704-1

2 Dimensions

365
798
37 kg
36 kg
40 kg
39 kg

3 Heating System Design

• In the case of an existing installation, it is ESSENTIAL that the
system is thoroughly flushed prior to installing the new boiler.
Using a proprietary product such as Fernox or Sentinel. Contact
the product manufacturers for specific details.
3.1 Bypass
•The boiler is fitted with an adjustable automatic bypass. Ensure
that under no circumstances does the flow rate drop below the
figure specified.
• If the central heating circuit is fitted with thermostatic radiator
valves to all radiators then an additional bypass should be fitted
not less than 1.5 metres from the appliance, see diagram 3.1.
3.2 Filling the system F30E
A filling device is fitted to the boiler to initially fill the system and
replace water lost during servicing, see the relevant parts of
diagram 2 controls and lighting and diagram 3.1.
3.3 Filling the system F30E SB
• Provision for filling the system at a low level must be made.
Three methods are shown in diagram 3.2. There must be no
permanent connection to the mains water supply, even through
a non-return valve.
Note: It is important that fittings used for connection to potable
water comply with the water undertakings requirements.
10
232
450
Diagram 2.1