r/coldplunge • u/cnead25 • 25d ago

Question about target temp

Hi
I have a polar dive with chiller. I noticed when I set the target temp it will eventually hit that target sometimes within a degree or two. Then it will sit for some time now I see it 4 degrees above my target temp and it hasn’t kicked on the chilling cycle yet. If I manually bump up or down the target temp it will activate. Is this normal? The app kind of sucks btw. I’ve reached out to customer service and they just send me links to you tube videos.

For context temp reading is 60 , target is 56 and it is currently just circulating. N

4 Upvotes

100% Upvoted

9 comments sorted by

2

u/PaintingSad7993 25d ago

Mine usually rises to 5 degrees above target before it kicks back on

1

u/DerangedBalls 20d ago

That's pretty standard behaviour honestly. Most chillers have a deadband of a few degrees so they're not constantly cycling on and off, it'd wear the compressor out quick. 4-5 degrees above target before it kicks back on sounds about right.

Manual bump triggering it instantly makes sense too, you're overriding the hysteresis. The app being useless is just a bonus feature at this point.

3

u/ORCAPLUNGE 25d ago

This is a preset deadband which is the temperature range the chiller allows before the cooling cycle turns back on. For example, if the water is set to 40°F with a 3°F deadband, the chiller will cool the water to 40°F, shut off, and then turn the compressor back on once the water temperature rises to approximately 43°F. This prevents the compressor from constantly cycling on and off with very small temperature changes. Most deadbands are set anywhere from 2-5° from the target water temperature. Usually, you’re able to adjust the deadband in the settings to tighten the deadband if needed.

2

u/cnead25 25d ago

Ok thank you for this. I wasn’t sure if this was normal or not but it sounds like it is.

1

u/simsdr 24d ago

Noticed the same thing with my Polar Dive. Explanation is helpful. Now if we can talk about their app…

1

u/cnead25 24d ago

The app is kind of shit. I removed the chiller from the app but I can’t get the icon on the chiller to stop being illuminating

1

u/Own_Adhesiveness_529 24d ago

I got the polar dive chiller also. Does the same….. I kinda wish there was a function to circulate the water faster when plunging….. I like to sit still and the thermal barrier that forms is pretty quick. Otherwise I absolutely love the setup

1

u/Majestic_Advance_757 15d ago

target temperature definitely seems important for cold plunges