eta HACK User Manual

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[Buffer] function block Configuration parameter
6.2.3 Buffer as a combination tank
Settings for buffer as combination tank
With a combination tank, you need to set
additional parameters for the hot water treatment.
Detailed descriptions of the parameters are provided
below.
Explanation of [Switch-on diff.]
Optional: only with combination tank
With a combination tank, this parameter regulates how
far the current warm water temperature can fall before
the hot water tank again demands heat from the boiler.
If the value is set to 15 °C, the current hot water
temperature may drop by 15 °C from the value
[Hot water tank target]. The combination tank does not
demand heat from the boiler unless this happens.
With a combination tank, this value can be set to
approximately 5°C to 8°C if the amount of hot
water is insufficient.
Explanation of [Flow temp raise]
The target temperature of the hot water tank in the [Hot
water tank target] combination tank is increased by this
value and supplied to the boiler.
Example:
[Hot water tank target] = 60 °C
[Flow temp raise] = 10 °C
=> 70 °C is demanded from the boiler.
Explanation of [Circulation runtime]
Optional: Only with circulation pump
This parameter sets the duration for operation of the
circulation pump after it has been started. This period
is only valid inside the set time slot.
After the set period has expired, the circulation
pump is switched off for the configurable duration
of the [Circulation pause] parameter.
Explanation of [Circulation pause]
Optional: Only with circulation pump
This parameter sets the period (pause) after a
circulation pump operating phase. The control system
can only restart the circulation pump after this time has
elapsed. This pause is only valid inside the set time
slot.
Explanation of [Enable circulation]
Optional: only for circulation pump
This parameter defines the minimum temperature of
the hot water tank for starting the circulation pump.
The circulation pump only starts once the hot water
tank has exceeded this temperature.
Hot water tank
Switch-on diff.
Flow temp raise
Circulation
Circulation runtime
Circulation pause
Enable circulation

eta HACK Specifications

General

Brand	eta
Model	HACK
Category	Boiler
Language	English