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Bosch IDS 2.0 Adaptive Cooling setting (not Accelerated Cooling)

1.8K views 10 replies 4 participants last post by  pecmsg  
#1 ·
Hi all, new to the forum

Hoping someone can help as I have been googling for hours and don't really have a clear answer

I have Bosch IDS 2.0 3 ton system operating just as an AC. Trying to get better dehumidification so I slowed down the airflow to around 1000 CFM, and also turned on dipswitch Sw4-4 to turn on Accelerated Cooling, which was mentioned in a number of things I read as it reduces the target coil temp which should get better condensation on the coil. I have also changed my compressor cycles per hour to 1 to get the longest runtimes I can, again for better sweating on the coil.

Several places I read mention of also turning Sw4-3, which is "adaptive cooling". Some people guessed that when this feature is on, it allows the coil temp to float up more or something. But it's not clear, and I found a training video from a Bosch distributor on YouTube and he was telling his students "we don't mess with that because we want the unit to use it's logic for best operation etc"

So I am just curious if anyone here works for Bosch or is deeply familiar with these units and knows what that Sw4-3 Adaptive Cooling really does and what would happen if you turned it off (again my primary goal here is just maximizing whatever dehumidification this machine can do)

Thanks
 
#3 ·
Thanks, I was just asking if people know what that specific setting actually does. The manual is very circumspect and various online forum posts I've read while researching also don't seem to be clear on what actually happens if that Adaptive setting is turned on or off. Hoping there will be some folks on here who know Bosch system well and will know the answer
 
#7 · (Edited by Moderator)
Hogan773,

Last thing I will share in case this helps and you have not run across it already. In the video below this guy answers your question with more clarity (probably the most you are going to get without going through your dealer to get more direct information from the factory, to be honest):

REMOVED LINK (I skipped to the part of the video where he addresses what this dip switch setting does and how it works. To be clear I definitely do not recommend messing with these types of settings without your dealer's involvement and their help doing so (meaning not by yourself), especially for equipment under warranty with a particular vendor.)
 
#11 ·
^^^Better pay attention here^^^
So for the benefit of others, I found a training video from Bosch on Youtube. Around 15:50 they discuss the Adaptive Cooling setting. He basically says that when you turn that off, then the coil temp will be in a much tighter band vs the target (while the default setting that includes adaptive cooling allows the coil temp to fluctuate in a wider band). So I guess if one feels that pegging that 42 deg coil temp (note the IDS 2.0 is 42 deg on the "accelerated" setting SW4-4, while it was 38 deg on the IDS 1.0) is helpful for dehumidification, then turn this off. Obviously there is perhaps more chance that you run a shorter cycle if you're running the coil as cold as possible. As I said above, I don't have a great sense of whether there is a significantly better "sweat" on the coil at 42 degrees vs 44 or 45 or whatever, and whether that better coil sweating offsets a shorter running cycle or not.

I can't post the link to the video because I am too new here but when I get a few more posts I will. It is titled "Bosch IDS Series" and the channel is "Bosch Home Comfort USA". It was published in June 2021
 
#10 ·
So for the benefit of others, I found a training video from Bosch on Youtube. Around 15:50 they discuss the Adaptive Cooling setting. He basically says that when you turn that off, then the coil temp will be in a much tighter band vs the target (while the default setting that includes adaptive cooling allows the coil temp to fluctuate in a wider band). So I guess if one feels that pegging that 42 deg coil temp (note the IDS 2.0 is 42 deg on the "accelerated" setting SW4-4, while it was 38 deg on the IDS 1.0) is helpful for dehumidification, then turn this off. Obviously there is perhaps more chance that you run a shorter cycle if you're running the coil as cold as possible. As I said above, I don't have a great sense of whether there is a significantly better "sweat" on the coil at 42 degrees vs 44 or 45 or whatever, and whether that better coil sweating offsets a shorter running cycle or not.

I can't post the link to the video because I am too new here but when I get a few more posts I will. It is titled "Bosch IDS Series" and the channel is "Bosch Home Comfort USA". It was published in June 2021
 
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