Table of Contents
Advertisement
ST – 450 z PID
After the set-point temperature (i.e. 55
o
C) is reached the hot water pump will
turn off causing the central heating pump to turn on. The hot water pump will
be switched on again when the temperature drops back to 50
C.
o
III.11. Feeder in auto mode
The option allows the automatic operation of the feeder to be enabled or
disabled. The feeder can be disabled to feed fuel manually or to shut the boiler
down.
III.12. Blowing in auto mode
Automatic operation of the fan can be enabled or disabled using this function.
Blowing can be disabled to manually control the natural chimney draught.
III.13. Floor pump
The function is used to control the floor heating. The user sets the floor
heating temperature in the range between 30ºC to 55ºC. After activation of the
floor pump the minimum activation (threshold) temperature (measured on the
boiler) and the maximum (preset) temperature of the floor heating (measured
on the pump sensor) should be set.
The floor pump will not operate below the minimum temperature. It turns on
after the minimum temperature is exceeded until the preset maximum
temperature is reached.
Once the preset temperature is reached the pump turns off and it is restarted if
the temperature drops 2ºC below the pre-set value.
- 21 -
Advertisement
Table of Contents
