[911freek]

Apologies, I never negotiate - you know the value of your products.
But I am not after a full replacement of the system, and even if I was, this is out of my budget.

Originally Posted by Jonny H

Not quite. Compressor 101 - the COP rating (Coefficient of Performance) means that the cooling capacity is greater than the input power. Our compressor COP is around 3

We typically run 75A input power at 13.5 volts which is 1012 Watts. With a COP of 3 that yields a cooling capacity of 3 x 1012 = 3036W which is 10,360 BTU.

Our alternators are rated 175A.

We have power management in our ECU which reduces the compressor speed in relation to cooling demand and alternator output. This reduces the amp draw at idle to save the battery from draining.

We have well over 2000 systems in operation, 70% of them in hot climates.

Here's a video which just came out today of a guy driving the length of Portugal in 37 degree C / 100F conditions. This car runs our AC.

https://www.youtube.com/watch?v=nM6uFhMyFMU

Note:

1) the guy has the windows closed and has a passenger - he is not sweaty.

2) when he stops for gas (21:44 in the video) and shows the engine there is no compressor on the engine.