BRULA NEO service instructions
Dated 03/18
Page
30 of
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Hysteresis Delta-T: Value showing how much hotter the boiler sensor must be
than the buffer sensor otherwise the pump switches off.
Alarm threshold: If the boiler temperature rises above this value, the pump is
always switched on, regardless of the temperature in the
buffer. If the boiler temperature drops 2°C below the alarm
threshold, forced engagement is cancelled. This 2°C alarm
hysteresis level cannot be adjusted.
Timer
: This function relates to the door contact switch. As soon as the firebox
door has been opened, the relay engages and remains engaged for a definable
period of time (1 - 9999 seconds) after the door has been closed.
SESAM:
The word "SESAM" only appears on the top row of the User Menu if
this function is selected. Pressing this box activates the corresponding relay for
3 seconds. The time is not adjustable. After that, the relay disengages. This
enables the Spartherm SESAM control system to be operated remotely. By
pressing the SESAM row, the firebox door then moves upwards electrically, or
lowers back down again.
If the SESAM function was not assigned to a relay, no entry appears in the User
Menu.
SESAM is an electrical door drive from Spartherm for push-up firebox doors.
After selecting and saving a relay function, a window always appears in which
the individual parameters of the selected function and associated sensor must
be entered.
Note: With many functions, a hysteresis level must be indicated. This is
displayed with a resolution of 0.1°C, e.g. in the overview. The hysteresis
value is keyed in without a decimal point, i.e. at a desired hysteresis level
of, for example, 5.0°C, a value of 50 must be entered. All settings can be
checked in the "Overview", see 8.6.
Circuitry examples and programming options for various applications can
be found in Chapter 10.
