Another shot. Didn't bother to open it.
Have sent a formal complaint and request for it to be fixed.
There were three issues:
1) The wiring
2) The shared power point circuit and no way to isolate it without taking out half our house.
3) Bypassing of the obvious Solar Analytics system which has a dedicated aircon power monitoring circuit.
Dave I would also have the pipe work checked as well . If his wiring is that bad he is not a certified engineer .
and the chances are that he has put kinks in the pipe work as well . The New gas have high flow rates compared to the old R22
and run @ higher pressures so any kinks in the pipe work will cause oil slugging at start and shorten the life of the compressor not to mention
an efficacy loss . There are many thing that these Cowboy are not aware of including the positioning of the out side unit .
Ie The Radiator (condenser ) Back of the unit MUST be a minimum of 30cm away from a wall . or if free stand Not facing south .
all these are important if you want your AC to work at its MAX rating.
The other very important thing . Did he purge the pipes of air . If this was not done Demand a replacement Unit . Or a full Vacuum of the system.
Just a few percent of air will cause the oil to turn green . and the compressor will run hot and die within a very short life time .
Update Edit :: You should have a seperate Fuse rated @ 7 x the normal operating current to allow for the Start current 15 to 20A MAX should be good for you .
Don't use the fast trip fuses as they will flip on a hot day full load start . But on the other hand its better the AC fuse drops just one fuse and not the whole house
It has a LRA (Lock rotor Amps ) of 39A
RNS Certified HVAC Engineer & Tech designer ( London Uni, USA Cert . Carrier Cert. .Copland Cert .))