According to Mark Lloyd :
On Fri, 15 Jun 2007 06:27:59 -0700, wrote:
On Jun 14, 10:23 pm, mm wrote:
On Thu, 14 Jun 2007 17:29:57 -0700, wrote:
I purchased a thru-the-wall A/C unit that runs 115V to replace an out
A/C and didn't realized the old ran on 230V. Is there an easy way to
convert the 230V outlet to 115V?
If I recall correctly, 220v ACs are more efficient than 110. CAn you
return the one you have and get one that works on 220/30/40.
(Doug, I live in the 110/220 world and don't plan to move until I
reach the Next World.)
IIRC, if you calculate the actual rms voltage, a "110" or "120" volt
line is actually 117v. Of course this is nominal, since it excludes
noise and IR drops.
How would you get that?
BTW, my outlets usually supply exactly 120V RMS.
Unloaded.
Power specifications take into account permissible voltage drop
under load. The permissible voltage drop includes the +/- 5%
tolerance or so permitted at your service panel's 120/240V
and the 5% or so voltage drop permitted over the house wiring
and supply cords.
Which basically means that house power is allowed to be (by code
and regulation) anywhere between about 110V and 130V.
In other words, some people call it 110V, others call it 120V,
and some people pick numbers in between. And of course, most
volt meters aren't very good at this accuracy on AC house power
either.
--
Chris Lewis,
Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.