[...] a question has come up re: the EPEver Tracer3210AN solar charge controller, as per its manual (
https://www.epsolarpv.com/upload/cert/file/1811/Tracer-AN-SMS-EL-V1.0.pdf):
(a) On printed page 12 (p.17 of the PDF file), it says:
Connect the system in the order of (1)battery, (2) load, and (3) PV array
[...] and disconnect the system in the reverse order(3)(2)(1).
(b) And right afterwards, on the same page, it says:
CAUTION: A fuse which current is 1.25 to 2 times the rated current of the
controller, must be installed on the battery side with a distance from the
battery not greater than 150 mm.
This seems contradictory because, if the fuse mentioned in (b) ever blows, battery will be disconnected *wthout* first disconnecting either load or the PV array, contrary to what is recommended in (a).
Our question is: does disconnecting the battery before disconnecting the PV array incurs any risk of damaging the controller? If not, why the recommendation on (a) above?