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14.3 : Setting the flue parameters for Themaclassic F 35E
This adjustment is made to ensure the boiler operates at
maximum efficiency with longer flue lengths.
• Insert a small flat edge screw driver into the arrowed slot
in potentiometer P7 (shown in diagram 14.2) : the code A
will appear on the display
• Turn to adjust to the desired code according to the
following table.
When all adjustments are completed :
• Adjust heating temperature to maximum.
• Check that any external controls, if fitted, are calling for
heat (set room thermostat to maximum).
• Allow the temperature to rise to the maximum value, with
all radiator valves open. The temperature rise will cause
release of the air contained in the water of the central
heating system.
• Air driven towards the boiler will be automatically released
through the automatic air vent.
• The air trapped at the highest point of the system must be
released by bleeding the radiators. Check the burner gas
rate required, ten minutes after lighting. Refer to Data Label
on electrical controls box. Should there be any doubt about
the gas rate it should be checked at the meter, refer to
technical data.
On reaching maximum temperature, the boiler should be
turned off and the system drained as rapidly as possible
whilst still hot.
• Refill system to a pressure of between 1 and 2 bar and
vent as before.
• Restart boiler and operate until a maximum temperature is
reached. If necessary, refer to section 16 to adjust the
bypass. Shut down boiler and vent heating system. If
necessary, top up heating system and make sure that a
pressure of at least 1 bar is indicated when system is COLD.
F30E/F35E Only Flush the domestic hot water system by
opening the hot water taps for several minutes.
Completion
Adjust the boiler temperature control and any system
controls to their required settings.
For IE, it is necessary to complete a "Declaration of
14 Commissioning
A9
Flue length for Themaclassic F 35 E
Setting Horizontal
Rear
flue (L)
flue (L)
(C12)
(C12)
0
0,3 m
0,3 m
1
0,5 m
0,7 m
2
0,8 m
1,1 m
3
1,0 m
1,5 m
4
1,3 m
/
5
1,5 m
/
6
1,8 m
/
7
2,0 m
/
8
2,3 m
/
9
2,5 m
/
Conformity" to indicate compliance to I.S.813. An example
of this is given in the current edition of I.S.813.
Please ensure the "Benchmark" logbook is completed and
left with the user and the magnetic lighting instruction label
is placed on the surface of the boiler casing.
Instruct the User
Instruct and demonstrate the lighting procedure and advise
the user on the safe and efficient operation of the boiler.
Instruct on and demonstrate the operation of any heating
system controls.
Advise the user on the use and maintenance of any scale
reducer and pass on any relevant instructional documents.
Advise that to ensure the continued efficient and safe
operation of the boiler it is recommended that it is checked
and serviced at regular intervals. The frequency of servicing
will depend upon the installation conditions and usage, but
in general, once a year should be enough.
Draw attention, if applicable, to the current issue of the Gas
Safety (Installation and Use) Regulations, Section 35, which
imposes a duty of care on all persons who let out any
property containing a gas appliance in the UK.
It is the Law that any servicing is carried out by a competent
person.
Advise the user of the precautions necessary to prevent
damage to the system, boiler and the building, in the event
of the heating system being out of use during frost or
freezing conditions.
Advise the user that the permanent mains electrical supply
SHOULD NOT be switched off, as the built in frost
protection and pump saver program would not be operable.
Reminder, leave these instructions and the 'Benchmark'
logbook with the user.
31
Vertical flue (L) Vertical flue (L)
Ø 100/60 mm
Ø 125/80 mm flue (2xL)
(C32)
(C32)
/
1 m
/
1,6 m
1 m
2,1 m
1,4 m
2,7 m
1,7 m
3,2 m
2,1 m
3,8 m
2,4 m
4,3 m
2,8 m
4,9 m
10,2 m
3,1 m
5,4 m
12,2 m
3,5 m
6 m
4000123924-2
Twin
(C52)
/
/
1 m
2,8 m
4,8 m
6,6 m
8,4 m
14 m
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