TECH ST-402N PWM, Руководство пользователя, Страница: 20 / 32

ST-402N User's Manual v 1.0.3
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coefficient.
Gear Coeff. 3 Gear Coeff. 4 Gear Coeff. 5 Gear Coeff. 6
Pump's Operation
Revolutions
Value of
Δ
(Collector's
Temperature
–
Tank's
Temperature)
Δ3 Δ4 Δ5 Δ6
10%
Δ6 Δ8 Δ10 Δ12
20%
Δ9 Δ12 Δ15 Δ18
30%
Δ12 Δ16 Δ20 Δ24
40%
Δ15 Δ20 Δ25 Δ30
50%
V.e.6) Solar Pump Operating Minimum
This parameter is active only if the pump's revolutions are set as adjusted. Using this setting, the user
should define the pump's minimum initial revolutions.
V.e.7) Solar Pump Operating Maximum
This parameter is active only if the pump's revolutions are set as adjusted. Using this setting, the user
should define the pump's maximum percentage operation revolutions.
V.e.6) Circulation Sampling
This function allows the user to activate or deactivate circulation sampling aimed at updating the
temperature reading consisting in a short activation of the collector's pump (when normal conditions
for the pump's activation are not met). Sampling requires a short activation of the pump after growth
in the collector's temperature by at least 3°C.
V.e.9) Oscillation Charging
Option active only in the case of setting the installation scheme number: 2, 6, 7 and 9.
Oscillation Charging is a function applied in the case of using a valve switching the circulation from
the collector in the installation. The first circulation is always the priority circulation and the valve is
switched to circulation 1 until reaching the set temperature in this circulation. When the temperature
on the collector is too low to reheat circulation 1, oscillation charging of circulation 2 is activated – the
valve switches to circulation 2 and the pump operates in operation cycles (parameter: Maximum
Heating Time of Tank 2) as well as pause (Parameter Oscillation Pause Time). When the collector
reaches a high enough temperature to reheat circulation 1, oscillation charging of the second circulation
is no longer necessary – the valve switches to circulation 1. The function oscillation charging is aimed
at optimizing the use of available solar energy.
When the user deactivates oscillation charging, reheating of the first circulation has absolute priority,
and switching the controller to reheating of the second circulation is possible only after the set
temperature in the first circulation is reached.
In the case of scheme 2 – the first circulation is the circulation collector – tank's top part, while the
second circulation is the circulation collector – tank's bottom part.
In the case of schemes 6, 7 and 9 – the first circulation is the circulation collector – tank 1, while the
second circulation is the circulation collector – tank 2.
V.e.10) Oscillation Pause
Option active only in the case of setting the installation scheme number: 2, 6, 7 and 9.
After the maximum heating time Z2, an oscillation pause takes place (the pump is deactivated)
ensuring the stabilization of temperature. When the collector's temperature increases sufficiently during
such pause, the valve switches to the first circulation. Otherwise, the maximum heating time cycle Z2
and the oscillation pause are repeated.
V.e.11) Maximum Heating Time Z2
Option active only in the case of setting the installation scheme number: 2, 6, 7 and 9.
After switching the valve to the second circulation, (when the collector's temperature is too low
to reheat the first circulation to its set temperature), this parameter determines how long it will be