Stc Wiring Diagram For Hlt Element?

[QldKev]

Yep, at the end of the day it's not a real issue. It's just the way I was taught to switch circuits going by the diagram on the stc-1000 itself. I was told it can have an effect on the number of clear contacts made.

Best real world example is the old manual points setup in a car. Look at the way it's switched.



QldKev

 

[Screwtop]

Yours is different too, in that your 240v supply is going into 6 and 8, whereas the instructions above have it going into 5 & 7, with 6 being the active output for heating, 8 the active output for cooling. I'd imagine they'd have the same result, when it closes/makes the circuit on the input or output probably doesn't matter. On mine and on the wiki I linked above it has the circuit broken on 6 & 8, which most seem to prefer to use as the output side.

FFS

The 240V Supply (Active and Neutral) is wired to 1 & 2 so the device will work. Actives (brown) to the outputs (heating and cooling) are switched by contacts 5 & 6 and 7 & 8.

Think of 5 & 6 and 7 & 8 as the contacts of two switches. The neutral and earth from the supply cable are connected to each output (heating and cooling). Devices plugged into the outputs have to be switched on by switching the active to the outputs. To turn the devices on the active must be switched to complete the active circuit to each output.

The active from the supply cable has been wired to terminals 6 and 8. When cooling is switched the contacts 7 & 8 are made switching the active to the cooling output. When heating is switched the contacts 5 & 6 are made switching the active to the heating output.

Screwy

 

[Crusty]

I still like mine

stc_1000.JPG

Make's it clear and look as simple as it is (for you electricians)

QldKev

Is this diagram ok to go with as I'm about to wire two STC 1000's up tonight?
Heating & cooling hard wired just like this.
Not for an element though, just for the fermentation fridge.

 

[QldKev]

I've got a few wired as above. Except hard wired? The cords are not directly to the fridge etc. They are female extension cords.
ie Get 2 extension cords and cut them in half. One male is used to supply the stc, and you use both female ends for the outlets.

Some where in this thread it should have pics

 

[Crusty]

I've got a few wired as above. Except hard wired? The cords are not directly to the fridge etc. They are female extension cords.
ie Get 2 extension cords and cut them in half. One male is used to supply the stc, and you use both female ends for the outlets.

Thanks Kev.
I was planning on the same. I stole a couple of the kids lunch boxes for now & installed 3 cable glands in the back of each one.
I was looking at the extension cords as well so if I follow your diagram above I should be sweet?

 

[Crusty]

I have one wired up & working perfect;y so cheers Kev.
Both my STC 1000's don't have the Celsius symbol on the top right like some of the older models.
I've seen quite a few builds that have the Celsius feature but these date back pre 2012.
Maybe this is standard now, not too sure.
guy has the same one as me.

 

[QldKev]

Not sure, all my stc are pre 2012 and have the C on the display

 

[Crusty]

I'm obviously not an electrician & could tidy the wire lengths up a bit but it's working perfectly.
I followed QldKev's wiring diagram & a big shout out to you Kev, thanks heaps. ( Wire at your own risk of course. )
I will be setting up another one when I can get a decent project box & will probably re-do this one as well but for now, the $1.50 Wayne's world lunch box will do.
Sorry for the crappy phone photo's.