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5.10
Synchronous Output
This function helps allocate a second output to any chosen output, which should switch
synchronously. This link is often called a parallel output. Both the outputs of the regulator itself and the
outputs of the four possible add-on units (for additional IO boxes see chapter 9.1) can be used.
The synchronous output is activated in the menu 'Settings -> 'Service' -> 'Functions' -> 'Synchronous
output' by pressing the OK button for two seconds (
-->
:
).
The outputs "R1 (regulator)" to "R4 (regulator)" or the outputs "R1 (IOBox)" to "R3 (IOBox)" on each of the four possible add-on
devices (for additional IO boxes see Ch. 9.1) are available.
5.11
Frost Protection
A mixture of water and a special non-toxic anti-freeze is commonly used as the heat transfer medium
in the solar circuit. Depending on the mixing ratio of this solar fluid with water frost protection
temperatures of at least -20 °C are possible.
In southern European countries or places where the solar circuit is emptied during frost periods
(holiday and weekend homes, camping areas) water can also be used alone as a heat transfer
medium. To reach a safe level of frost protection, the collector can be kept at the required temperature
with the heated storage tank water. If it falls below a frost protection temperature of +4°C on the set
sensor (sensibly collector sensor) an adjustable output is switched on for the circulating pump
(sensibly solar circuit pump). The switch-off hysteresis is factory set and switches the pump off again
when a temperature of +6°C is reached at the sensor.
Note:
Please activate this function only when you are certain that only water has been
used as a heat transfer medium and that therefore there is the risk of frost for the
solar circuit. This function enables operation of a solar heating system without anti-
freeze only for very specific applications.
Corresponding safety-related equipment may need to be installed and measures
against frost may need to be taken.
The frost protection is activated in the menu 'Settings -> 'Service' -> 'Functions' -> 'Frost protection' by
pressing the OK button for two seconds (
-->
:
).
The sensor inputs "E1 (regulator)" to "E7 (regulator)" are available on the regulator or the inputs "E1 (IOBox)" to "E4 (IOBox)" on
each of the four possible add-on devices (for additional IO boxes see ch. 9.1) are available.
The "R1 (regulator)" to "R4 (regulator)"relay outputs or the outputs "R1 (IOBox)" to "R3 (IOBox)" on each of the four possible
add-on devices are available.
