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Old 07-19-2015, 01:25 PM   #5
dadsr4
somebody shut me the fark up.

 
Join Date: 02-08-10
Location: Howell, MI
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Quote:
Originally Posted by acguy View Post
I am an expert. The temperature of a freezer can reach above 30 during defrost. It's all about how much defrost time is needed. However, that doesn't mean the product will reach that temp. Your product should stay at or below the setting. So, when the freezer comes out of defrost, it will return to the setpoint temp very quickly.

A restaurant W/I must have an auto defrost. The defrost is to keep the coil from icing up and not the walls or anything else. The door frame will also have a defrost heater on it.

If fans move the air in the unit, it will have a defrost circuit.

A household freezer can be purchased with or without a defrost. Household freezers have a static coil. I don't bother with buying a defrost on my chest freezer. Every so often I get rid of the ice on the walls by hand and clean the freezer up while I'm at it. A defrost circuit on this freezer will double it's energy use.
This is why I have defrost shut off. The turnaround in a commercial freezer is higher, so there is less chance of food damage.
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Last edited by dadsr4; 07-19-2015 at 01:57 PM..
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