Rotex Controller Series Product Documentation page 136

EbV
Prerequisite: The temperature of the solid-fuel boiler is at least 10 K over the minimum
temperature limit.
The minimum value is 3K above the switch off differential.
Switch-off
differential: Switch-off differential solid fuel boiler buffer tank (SD
If the temperature difference is lower than the switch-off differential, the loading
process is terminated and the pump is switched off. The maximum setting value is
always 3 K under the selected switch-on differential in order to prevent rear
discharge of the buffer tank.
Inhibition H-GEN: Solid fuel inhibition H-GEN
The solid fuel inhibition serves to prevent frequent switching between loading
through the solid-fuel boiler and loading through a conventional oil/gas heat
generator.
After the solid-fuel loading pump has been switched off, the set time must pass
before loading of the buffer tank is continued through the conventional heat
generator.
Anti-blocking
protection: This is an automatic function of the controller. If the solid fuel loading pump was
switched off for longer than 24 hours, then it will be started for 20 seconds in order
to prevent blocking through corrosion.
Operation buffer parameters:
8-52
Note on operation
Buffer sensor 2 (bottom)
Minimum temperature
Maximum temperature
Switch-on differential
Switch-off differential
Inhibition H-GEN
Product documentation THETA NORM/UNIT
Key / parameter tree
HYDRAULIC
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
)
OFF
Parameter
PARAMETER 08
or
PARAMETER 09
or
PARAMETER 10
PARAMETER 01
PARAMETER 02
PARAMETER 03
PARAMETER 04
PARAMETER 05