ST-45 User's Manual
The function is enabled only in the
duty
mode (i.e. when the boiler
temperature is lower than the
setpoint temperature
). When the boiler
temperature fails to rise in the user-defined period, an alarm is
activated: the feeder and the fan are shut off (the water pump is
switched on and off independently) and the alarm is sounded. The
display shows the following message: C.H. Temperature Rise Failed. The
alarm can be reset with the encoder.
III.4.Room Regulator
The
ST-45
regulator can be connected to a room regulator. In such case,
it has a higher priority, which does not apply to heating from the water
heater. The feeder, fan and central heating pup run until the temperature
set with the room regulator is reached. However, the boiler is limited in
its operation by the temperature set with the boiler controller.
CONNECTING THE ROOM REGULATOR:
the room regulator features a
two-wire cable that should be connected to the controller's connection
strip, to a terminal labelled as
room regulator
.
ATTENTION:
no external voltage can be applied to the room regulator
output.
III.5.Boiler Hysteresis
With this function, you can set the hysteresis of the
setpoint
-16-
FITTER’S MENU
Exit
Temperature Alarm
Room Regulator
Boiler Hysteresis
FITTER’S MENU
Exit
Temperature Alarm
Room Regulator
Boiler Hysteresis
