Technische Alternative - Varmt vand fra solen
Technische Alternative - Varmt vand fra solen
Technische Alternative - Varmt vand fra solen
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Pump standstill<br />
The wave packet method (standard) allows for variations in the volume flow by a factor of<br />
10 in 30 increments. If the flow rate is too low, flap valves may cause a system standstill. In<br />
addition, low power stages at low speeds may cause the rotors to stop. Such a standstill may<br />
sometimes be desired, which is why stage 0 is allowed as the lowest stage. The following<br />
parameters determine the lower and upper limit for speeds:<br />
MIN Lower speed limit (ex works = 0)<br />
MAX Upper speed limit (ex works = 30)<br />
The best speed limit is found in a simple test. Use the command TST to set a speed for<br />
testing. Remove the rotor lid to see the rotor. Then lower the speed until the rotor stops. Set<br />
the limit three increments above this point to ensure safe pumping.<br />
Control commands<br />
The following commands provide a test of the system (see pump standstill) and allow you<br />
to monitor the current speed (see stability problems):<br />
ACT 19 The pump is currently running at stage 19 (actual value).<br />
TST 14 The speed stage 14 is currently being tested. Calling TST automatically switches<br />
to manual mode. As soon as the value blinks via the key � (= entry), the pump<br />
runs at the speed displayed.<br />
Setting range: 0 to 30<br />
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