PlayDate
Well-Known Member
Agreeo on all that. Prior to looking at the schematic for the pump relay (I'm still using the old Cruisair one that came with the boat), I was concerned that there might be some neutral sharing in the relay box. Looks like they are isolated enough that it won't matter. I am inclined to put the pump power on the Accy blank in the panel to overcome the issue of only running the fwd air, with the aft air breaker off = no seawater. Most people probably don't control their A/C on off by the panel breaker, but I do. It's at eye level and easy to read. The Marinaire thermostats........not so much for these old eyes.View attachment 147563
I get why you are using a breaker as a switch but modern marine AC units like to be shut down at their thermostats. Most new units run the fan after it is switched off for a while to help dissipate the heat from the unit.
Add to that ......keep a few breakers as spare because they will wear out much faster than a switch.