On Sun, 06 Oct 2013 11:03:19 -0500, dpb wrote:

On 10/6/2013 10:25 AM, Oren wrote:
...

Seems silly to not hardwire a roof mounted swamp cooler (IMO)

Virtually none were anything but window units back then other than
commercial...

I've never seen anything but the wall outlet for one in a home; the load
is simply the fan and a tiny little pump, not a compressor so there's no
need for anything more than 15A service.

I guess it's awkward to permanently wire something into a window unit.
Just routing the cables would be a pain. Even our thru-the-wall ACs
(one 240V, one 120V) were plugged in. OTOH, I'd expect a roof-mounted
unit to be permanently wired.