Hi Guys.
I was logging a recently installed Carrier Chiller today.
Which Has the refrigerant details listed (On Data Plate) as R410a.

However on my most recent comparator the R410 is listed with a Capital A!

All the other refrigerants with a Capital A have the Bubble and Dew options

The R410 option does not.

Is this because the difference between the bubble and dew point is so small?

Or is there another reason why it has a capital A.


I know this was answered a long time ago, but I have forgotten the answer.
Thanks Grizzly