Flow Rate; Central Heating; Appliance Protection Devices - Potterton Combi 80 Installation & Service Instructions Manual

Commissioning - Page 19
3.6 D.H.W Flow Rate
The appliance contains an automatic flow regulator
supplying a nominal flow rate of 7.6 litres/minute. This
flow rate will give a nominal temperature rise of 45°C.
3.7

Central Heating

1. Ensure that all external controls such as a timers
are switched On and that room thermostat/s are
calling for heat.
2. Set the Central Heating switch to Timed (if system
fitted with Timer) or Constant. The appliance will
control the flow temperature between 79 °C & 87 °C
dependent on system load.
3.8

Appliance Protection Devices

•
Loss of gas supply, flame failure, or over-heating of the
central heating water will cause the appliance to shut
down or Lockout. This will be indicated by the lockout
light being illuminated. To Reset the appliance press the
RESET button on the front panel and hold in that
position for 10 seconds and release. The appliance
should now operate normally.
If this is not the case refer to the Fault Finding guide
either on the rear of the white front case or in these
instructions.
•
If the central heating system loses pressure for any
reason the system and the appliance should be checked
for leaks (including discharge from the pressure relief
pipe). Correct any faults and re-pressurise the system
with reference to Section 1.6. Mains Water Feed Central
Heating.