eta 13180LP-T, Операция

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ETAtouch controller [BufferFlex] function block
37
The value should be at least 5 - 10 °C above the
average return temperature of the consumers,
but no more than 70 °C. A high shutdown temperature
reduces the number of boiler starts and improves
boiler running time.
Explanation of [Buffer off]
This sets the shutdown temperature for the buffer
charge when the consumer is in operation while
requesting heat from the buffer.
If the temperature sensor in the buffer has exceeded
the shutdown temperature, charging of the buffer ends
and the buffer is charged.
If several consumer levels are configured, a
different shutdown temperature can be set for
each level.
Explanation of [Solar storage strategy]
Various settings can be made for stratified charging of
the buffer by the solar heating system.
• [Charging by demand]:
The current demands of the consumers on the
buffer and the set minimum temperature of the
solar heating system ([Buffer top min. solar]) are
used to calculate the temperature required for
buffer charging. The solar heating system will only
begin to charge the buffer once the collector
temperature is greater than the calculated
temperature (for charging the buffer).
• [Optimise yield]:
The solar heating system will begin to charge the
buffer as soon as the collector temperature is
greater than the current buffer temperature.
• [Charging according to buffer top min. solar]:
The solar heating system only begins to charge the
buffer once the collector temperature is greater
than the set minimum temperature of the solar
heating system ([Buffer top min. solar]).
Explanation of [Buffer top min. solar]
Optional: only for solar heating systems with stratified
charging
With stratified charging by the solar heating system,
this sets a minimum temperature for the top section of
the buffer. This way, solar charging only takes place in
the top section once the solar panel is at least 7 °C
warmer than [Buffer top min. solar].
However, this minimum temperature only applies
if the conditions for stratified charging are
satisfied. If they are not, solar charging is switched to
the bottom section of the buffer, to make use of the
solar energy.
Explanation of [Buffer max]
This configurable shutdown temperature sets a
threshold for how much the buffer can be charged by
the solar heating system, to prevent the buffer from
overheating. If the allocated temperature sensor
reaches the configured shutdown temperature, the
solar pump of the solar heating system is switched off.
Explanation of [Priority]
Optional: only with solar heating system and buffer
with 2 internal coils
This parameter sets the priority of the top and bottom
sections of the buffer for solar charging. A high priority
means that this section will be charged by the solar
heating system first. A low priority means that it will be
charged last.
Function [Solar priority]
Optional: only with solar heating systems
This function is used to allow the solar heating system
connected to the buffer to charge the buffer storage
tank (or combination tank) without firing up the boiler.
For this, 2 time slots are set. During the first time slot
(from [Begin solar prio.] to [Change priority at]), the
boiler is "locked". This means that the boiler is not fired
up to charge the buffer, even if the solar heating
system is not delivering enough heat.
During the second time slot (from [Change priority at]
to [End solar prio.]), the boiler can be fired up to charge
the buffer if the solar heating system does not supply
any heat for more than 3 minutes.
If the [Solar priority] function is not needed, it can
be switched off at any time.
Explanation of [Begin solar prio.], [Change priority
at] and [End solar prio.]
Optional: only with solar heating systems
These parameters are used to set the time slots for the
[Solar priority] function.
The first time slot lasts from [Begin solar prio.] to
[Change priority at]. The second time slot begins with
[Change priority at] and ends with [End solar prio.].
Outside the 2 time slots, the boiler can charge the
buffer at any time.
Set the start of solar priority before the first time
window of the heating circuit and hot water tank.
Otherwise, the boiler may start beforehand, in order to
charge the heating circuit or hot water tank.
During the configured times for solar priority, it
may happen that the heating circuits or the hot
water are not supplied with sufficient heat.