Hello,
I picked up a used (barely used) generic brand Mini Split air conditioning system for cheap (1 ton cooling), that takes DC input.
The label on Compressor portion of the Air Conditioning Unit says:
Rated Volatge: DC 48V
Cooling Capacity 12000 (2000-13500) BTU
Rated Input Power (Cooling) 850 (100-13000) W
I have some Kyocera KC158G PV Modules. The specs on these are:
Max Power: 158W
Max Power Voltage: 23.2 Volts
Max Power Current: 6.82 Amps
Open Circuit Voltage: 28.9 Volts
Short-Circuit Current: 7.58 Amps
I’m interesting in powering this unit with the PV modules directly.
It seems like I would have a 2S3P arrangement: 2 in series (23.2VX2=46.4V), and 3 in parallel (850W input power required / (158 W X 2 ) = 2.7)
I realize I'm falling short of the input voltage by 1.6 (48-46.4 ), but I'm guessing that might be negligible as it is 97% (46.4/48) of the input voltage.
Would love to hear your thoughts about this project. I have never hooked up anything solar before, but have a background in EE /physics in college classes with lab work, so understand enough to possibly know if I am going to kill myself, and of coarse the home repair projects wiring things up.
Would love to have your opinions here on this project.
Thanks in advance.
I picked up a used (barely used) generic brand Mini Split air conditioning system for cheap (1 ton cooling), that takes DC input.
The label on Compressor portion of the Air Conditioning Unit says:
Rated Volatge: DC 48V
Cooling Capacity 12000 (2000-13500) BTU
Rated Input Power (Cooling) 850 (100-13000) W
I have some Kyocera KC158G PV Modules. The specs on these are:
Max Power: 158W
Max Power Voltage: 23.2 Volts
Max Power Current: 6.82 Amps
Open Circuit Voltage: 28.9 Volts
Short-Circuit Current: 7.58 Amps
I’m interesting in powering this unit with the PV modules directly.
It seems like I would have a 2S3P arrangement: 2 in series (23.2VX2=46.4V), and 3 in parallel (850W input power required / (158 W X 2 ) = 2.7)
I realize I'm falling short of the input voltage by 1.6 (48-46.4 ), but I'm guessing that might be negligible as it is 97% (46.4/48) of the input voltage.
Would love to hear your thoughts about this project. I have never hooked up anything solar before, but have a background in EE /physics in college classes with lab work, so understand enough to possibly know if I am going to kill myself, and of coarse the home repair projects wiring things up.
Would love to have your opinions here on this project.
Thanks in advance.