Tech Controllers EU-402N PWM, Руководство пользователя

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Solar pump work minimum – this parameter is available only if regulated revolutions option is selected. Using
this setting the user should define the pump minimum initial speed.
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Solar pump work maximum – this parameter is available only if regulated revolutions option is selected. Using
this setting the user should define the pump maximum operating speed (%).
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Installation sampling – this function enables the user to activate or deactivate circulation sampling, aimed at
updating the temperature reading, by activating the collector pump for a short period of time (when standard
conditions of pump activation are not met). Sampling forces short-time activation of the pump after the collector
temperature increase of at least 3°C .
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Oscillation charging – Option available only for schemes 2, 6, 7, 9. Oscillation charging function is used when
the heating system includes a valve switching the circulation from the collector. The first circulation is always the
priority circulation and the valve is switched to circuit 1 until the pre-set temperature of this circuit is reached.
When the collector temperature is too low to heat circuit 1, oscillation charging of circuit 2 is activated
– the
valve switches to circuit 2 and the pump operates in cycles: operation (parameter: Tank 2 maximum heating
time ) as well as pause (parameter: Oscillation pause time). When the collector temperature is high enough to
heat circuit 1, oscillation charging of circuit 2 is no longer necessary – the valve switches to circuit 1. Oscillation
charging is aimed at optimizing the use of available solar energy.
When the user deactivates oscillation charging, heating circuit 1 is given absolute priority and switching to circuit
2 heating is possible only after the pre-set temperature of circuit 1 is reached.
In the case of scheme 2, the first circulation is the collector-tank top circulation while the second circulation is
collector-tank bottom circulation.
In the case of schemes 6, 7, 9, the first circulation is collector-tank 1 circulation while the second circulation is
collector-tank 2 circulation.
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Oscillation pause - Option available only for schemes 2, 6, 7, 9. Once the maximum heating time Z2 is over, it is
followed by oscillation pause (the pump is deactivated) ensuring temperature stabilization. When the collector
temperature increases sufficiently during the pause, the valve switches to the first circuit. Otherwise,
maximum
heating time Z2 cycle and oscillation pause follow again.
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Maximum heating time Z2 - Option available only for schemes 2, 6, 7, 9. After switching the valve to the second
circulation (when the collector temperature is too low to heat the first circuit to its pre-set temperature), this
parameter determines how long the circuit is to be heated (if the conditions for switching to the first circulation
are still not met).
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Pump 2 deactivation delta - Option available only for schemes 3, 7, 8, 12, 14. This function determines the
difference between the collector temperature and tank 2 temperature at which the pump is disabled (so as not
to cool down the tank).
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Pump 2 activation delta - Option available only for schemes 3, 7, 8, 12, 14. This function determines the
difference between the collector temperature and tank 2 temperature at which the pump is enabled (pump
activation threshold).
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Control revolutions - these parameters enable the user to choose the type of PWM pump used:
Increase
It concerns PWM pump whose speed increases when the signal increases.