Temperature Control; Safety Thermostat; Flame Failure Reset - Potterton Performa 24 User Operating Instructions Manual

Fig. 8
Central Heating

Temperature Control

Fig. 9
Domestic Hot Water
Temperature Control
Reset
Reset Position
Fig. 10
Reset
Burner On
Flame Failure
Power On
Fig. 11
2.0 Operating the Boiler
2.3 Temperature Control
1. Central Heating: The central heating hot water
flow temperature can be adjusted between 30° C
(± 5° C) minimum and 85° C (± 5° C) maximum.
2. Turn the control knob clockwise to increase the
temperature (Fig. 8).
3. In normal winter usage we recommend that the
central heating temperature be set at maximum.
4. Domestic Hot Water: The temperature of the
domestic hot water can be adjusted by turning the
control knob clockwise to increase up to a
maximum of 65° C (Fig. 9).
5. The temperature of the water is also dependent
on the water flow rate and the temperature of the
mains water coming into the house.
6. By slightly reducing the flow from the tap the
temperature will increase up to the maximum if
required.
7. The flow rate can be reduced down to as low
as 2.5 litre/min. The boiler will still recognise the
need to heat the water.
2.4

Safety Thermostat

1. Your Potterton Performa 24 is fitted with an
additional safety device, which shuts down the
boiler in the event of the system or the boiler
overheating.
2. If the device operates, the boiler will shut down.
To reset: Contact your Service Engineer - the
reset button is inside the appliance and resetting
by the user should not be attempted.
3. The cause of operation of the safety thermostat
should be determined by your Service Engineer.
2.5

Flame Failure Reset

1. The red reset neon ( ) will illuminate in the
event of the burner failing to light, or when
incomplete lighting of the burner occurs (Fig. 11).
2. Turn the selector switch fully anti-clockwise
against the spring pressure to the reset position,
hold for 2 seconds and release (Fig. 10). Set the
selector switch to the required position to light the
boiler.
3. If the reset neon illuminates repeatedly a fault
is indicated. Your Service Engineer should be
contacted as soon as possible.
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