Rotex Controller Series User Manual

EbV Product documentation THETA NORM/UNIT
8-43
Anti-blocking
protection: This is an automatic function of the controller. If the solar 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.
8.5 Function Buffer Loading Pump (..VV..)
NOTE: The function is only activated if a variable output is assigned to a buffer loading
pump.
For stratified discharge, an optional second buffer tank sensor (BU 2) can be
connected at a variable input (VI1 to VI3).
The temperature of the heat generator is internally supplied.
Function: Buffer tanks are energy storages used to store energy which is supplied without
control from either a solar system or a solid fuel boiler. The energyconsumption of
heat consumers can be covered by the energy from the buffer tank
Controlled heat generators (boilers) can be used in a supporting function, which
cover the extra energy demand.
The function of the buffer charging pump ensures that a controlled heat generator
supplies the buffer or heating or DHW circuits with the necessary extra energy.
If no controlled heat generator is used (e.g. heating by wood boilers only), buffer
functions such as forced dissipation into the heating circuits can be used by
connecting and activating buffer tank sensor 1 at a variable input.
Operation: Activation of the function and sensor assignment:
Operation of solar parameters:
Note on operation Key / parameter tree Parameter
Switch-on differential SOLAR PARAMETER 01
Switch-off differential SOLAR PARAMETER 02
Minimum run time of solar panel
pump
SOLAR PARAMETER 03
Collector’s maximum temperature SOLAR PARAMETER 04
Tank’s maximum temperature SOLAR PARAMETER 05
Operating mode SOLAR PARAMETER 06
Solar priority parallel switchover SOLAR PARAMETER 08
Solar energy balance SOLAR PARAMETER 09
Reset sol. energy balance SOLAR PARAMETER 10
Volume flow SOLAR PARAMETER 11
Density medium SOLAR PARAMETER 12
Specific heat capacity medium SOLAR PARAMETER 13
Note on operation Key / parameter tree Parameter
Activation buffer charging pump HYDRAULIC PARAMETER 06
or
PARAMETER 07
BU is assigned if BULP is active,
otherwise, it can be set
HYDRAULIC PARAMETER 08
or
PARAMETER 09
or
PARAMETER 10

Rotex Controller Series Specifications

General

Brand	Rotex
Model	Controller Series
Category	Controller
Language	English