The poster was asking about having techs do fix it though. AC&R shop maintains both equipment on a ship. I was just giving him an idea of the A/C cooling capacity. I wouldn't know it unless I had worked on that and the walk ins as well :>}
I was an engineer on a nuc sub in the 70’s and while underway I have had to fix both. I have also had to rebuild an oxygen generator, broken scopes and diesel generators all while underway and in all but one case, under water.