This is just a simple thermostat for a small reach in freezer. The customer had complaints of large temp swings. It has an adjustment screw, I found out one day that adjusting the screw will increase or decrease the dead band, basically increasing or decreasing the on/off time. Sometimes you'll find these with a dab of thread lock and I've heard tech support say never to touch them. That's not me though, I want to find out what it does so I can learn. This one was adjusted and it corrected the large swings. Just food for thought, author Adam Grant (organizational psychologist) preaches to question your teachings to become better. Read his book called Think Again. It's an eye opener. Happy HVACing #teachme

Posted by HVAC Know It All at 2021-06-08 19:55:44 UTC