TK S-700 new reefer unit on 35 hours can’t get to -15 ?

Too many variables….type of trailer
Trailer specs
How hot was wagon when you started precoolin are just first few that come to mind
but if it dropped to -7 in that heat
I doubt your unit has a problem

 

120F, empty trailer, that's a lot of empty air to cool. Your setup is just fine if it pulls to -7 empty. If it were loaded, less air to cool, quicker cooling occurs.

 

Did you pre cool before going there or did you just roll in for a load of ice cream with the unit off?

doubt it will drop much more before the sun goes down, 127* temp difference is actually pretty impressive ..

 

Curiosity question

Why wouldn’t the driver have that unit running while they were driving to the pickup point? Especially for an ice cream load.

 

You say a ‘brand new unit’, is the trailer and refer unit brand new, or new reefer put on an older box?

 

I can't believe they won't load you. 7 below is pretty good in those types of temps. I don't know why they think 5 below is so much colder than 7 below. The ice cream will still be ice cream right? Anyway, as your reefer ages, you'll have to do manual defrosts to help with the cooling process. Also, you may need to stuff paper towels in the holes in each corner on the inside of the trailer to keep any bit of heat out.

 

A reefer is meant to maintain a set temp, with a load inside the trailer; not make miracles happen that stupid people come up with.

 

While true….. that ship sailed 20+ years ago now
You can’t even reason with some of these Shippers and Cold storages anymore. Get the unit to 15 below they tell you to back in you open the doors by the time you hit the dock interior temperatures back up to 50° plus the whole thing is gotten ridiculous.