Will a Temperature Controller ruin a chest freezer? - Page 2

mrkristofo · 11-07-2007, 04:43 PM

All of the temp controllers, Ranco and Johnson, both have a 4 or 5 minute dead time, regardless of what you set the differential at, so that they won't burn out the compressor.

rohanski · 11-07-2007, 06:46 PM

It will cycle more at freezing temps than at 65 degrees because there is a larger temperature differentiation from inside to outside.

mr x · 11-07-2007, 07:32 PM

Quote:

Originally Posted by olllllo

I have heard that most chest freezer problems (with or without a controller) are due to using extension cords with the incorrect guage. (Cord is too thin and too long.)

My Ranco has a pretty fat cord. If you wire your own, I'd look into that and I'd avoid using a cheap extension cord.

Definitely use a heavy gauge cord on induction motor type equipment that has a heavy start current (dehumidifiers, fridges, freezers, etc.). In Nova Scotia it is electrical code that fridges need to be on their own circuit because they draw such a heavy amperage on start-up.

As far as the controller, as long it has a sensible deadband, you should be OK. You don't want the thing coming on every 5 min for 15 min.

**wizardofza** · 11-07-2007, 08:23 PM

Ok, cool. Thanks for the responses.

I'll post some pics when I get this thing done.