Worcester 24SiII - Page 33

Commence normal
central heating mode
until temperature
reaches 20°C
33
Pump overrun
function active
for 3 minutes
OVERRUN FUNCTION
Run pump
END DHW
DEMAND
END CH
DEMAND
Pump runs
for
3 minutes
Pump on if
primary temp
above 80°
until temp
below 75°C
AUTOFROSTAT FUNCTION
Monitor
central
heating
sensor
Below
5°C
5°C
to
9°C
Above
9°C
No demand
and primary
temperature
below 8°C
Internal
"Autofrostat"
demand
Return to
normal off
state
Fan low speed
35 seconds
Fan low speed if
primary temp
above 80°C until
below 75°C.