Pszemol wrote on 11/19/2007 10:34 PM:
"Wayne Sallee" wrote in message
...
Pszemol wrote on 11/19/2007 9:12 PM:
For the bathroom heater ? This is the simple one...
How much would you want to pay for it? :-)

I think that would be a hard question to answer without seeing the
product.

Wayne, I said that one was simple:
http://www.intermatic.com/images/ins...158ei12085.pdf
http://www.intermatic.com/images/ins...158ei12086.pdf
They are ideal for the resistive loads up to 15A (1800W)
like your bathroom lamp heater. Pretty simple and cheap.
I got one of these for my bathroom for $24.99 at Home Depot.

Skimmer switching problem is slightly more
complicated due to the reverse polarity. You want
to switch the pump OFF for some time not turn it
ON like the bathroom heater...

What you need is a shut-off switch with a normally
closed output - I have not found one like this yet...

But you can workaround the problem :-)

Get a normal auto shut-off switch like linked above
and also a relay with a coil running on your AC voltage
(120VAC in US, 230VAC in Europe). Use the auto
shut-off switch to power the relay coil instead of the
pump and connect pump to the normally closed relay
output contacts.

This way, when the auto shut-off swtich is iddle (OFF)
the relay coil is not energized and the current can
flow through the normally closed relay contacts
to the pump. When you press the button on the
auto shut-off switch you will energize relay coil
and move its normally closed contacts to the OFF
position - in consequence turning off the pump for a programmed time
with the auto shut-off timer.

Simple enough?

Yep, just a simple job of reversing the process with
another relay switch.

Wayne Sallee