Configuration parameter [Hot water tank] function block
Explanation of [Hot water tank max.]
This parameter defines the maximum temperature of
the hot water tank, and applies to all heat producers -
including solar heating systems - that charge the hot
water tank.
The factory setting is 60°C. This should always
be set 5°C above the target temperature of the
tank.
If the hot water tank is charged by a solar heating
system, you may increase this value.
Explanation of [Sol. chg. until]
Optional: only with solar heating systems
This parameter determines which section of the tank
should be charged up to maximum temperature by the
solar heating system.
If you set it to [Top], the tank is charged until the [Hot
water tank] temperature sensor has reached [Hot
water tank max.].
If you choose the setting [Bottom], charging continues
until the [Hot water tank bottom] temperature sensor
has reached [Hot water tank max.].
Explanation of [Solar heat diss.]
Optional: only for accumulator tanks with solar heating
system
This parameter defines whether the hot water tank
may take excess solar heat from the buffer.
If this parameter is set to [Yes], the hot water tank takes
the solar excess up to the maximum temperature [Hot
water tank max.].
This parameter is factory-set to [No]. You must
check the conditions for the [Extra solar heat]
function in the text menu of the accumulator tank.
Explanation of [Priority]
Optional: only for solar heating systems with
switchover between several tanks
This parameter sets the priority for solar charging of
the hot water tank. A high priority means that this tank
will be charged by the solar heating system first. A low
priority means that it will be charged last.
Explanation [Circulation runtime]
Optional: only for circulation pump
This parameter specifies the duration for operating the
circulation pump after it has been started by the control
system. Once this time has expired, the circulation
pump is switched off for the set duration [Circulation
pause].
Example:
[Circulation runtime] = 3 minutes
[Circulation pause] = 10 minutes
If the circulation pump has been started, it is in
operation for 3 minutes and then disabled for
10 minutes. This means that it can only be requested
again by the control system after 13 minutes.
You can determine the required running time of
the circulation pump in the following way. Start
the circulation pump in the control system by means of
manual operation in the inputs and outputs menu. After
starting, measure the time until the fresh water module
warms up the return line for the circulation. This time
(e.g. 3 minutes) is required to heat the hot water pipe.
Then enter this time in parameter [Circulation runtime].
During this time measurement, no hot water may be
tapped (e.g. by sink, shower ...), because otherwise an
incorrect time is measured.
Explanation [Circulation pause]
Optional: only for circulation pump
This parameter sets the pause after a circulation pump
operation. The control system can only restart the
circulation pump after this pause/break has expired.
Example:
[Circulation runtime] = 3 minutes
[Circulation pause] = 10 minutes
If the circulation pump has been started, it is in
operation for 3 minutes and then disabled for
10 minutes. This means that it can only be requested
again by the control system after 13 minutes.
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.
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