Hi, The Spec. page for the actii 7392 controller (from Europe for 3KW resistance heat) reads "Panel Voltage 10 to 350VDC". The User Manual reads "Panel tension From 120V to 350V DC", (tension is usually same as voltage). Does any know why this is, my poor understanding, or a translation misprint?
I have this controller on order, based on the 10V spec. page, and will be reluctant to connect it if a return is required. My 4 series panels will produce between 80 and 140 VDC, 1280 rated watts. (northern latitude less than optimum orientation). I intend to connect (via 7392) to one water heater element. It appears the 7392 is designed with the higher European voltage in mind and I am afraid it may not function, or not function well, in the 80/140V range. Some controllers specify a voltage where the MPPT starts to function, this one does not.
There are other controller options, but I like the onboard thermostat and the higher capacity for future growth.
Thanks for the help, Edward
I have this controller on order, based on the 10V spec. page, and will be reluctant to connect it if a return is required. My 4 series panels will produce between 80 and 140 VDC, 1280 rated watts. (northern latitude less than optimum orientation). I intend to connect (via 7392) to one water heater element. It appears the 7392 is designed with the higher European voltage in mind and I am afraid it may not function, or not function well, in the 80/140V range. Some controllers specify a voltage where the MPPT starts to function, this one does not.
There are other controller options, but I like the onboard thermostat and the higher capacity for future growth.
Thanks for the help, Edward
PWM MPPT 3KW Heater Charging Controller for Solar Solar Panels ACTii AC7392
PWM controller for heaters with the algorithm of searching for the maximum MPPT power point from photovoltaic panels. The controller enables the supply of standard DHW electric boilers from solar panels The solar panel works at maximum power only at optimal voltage. Connecting the heater...
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