On Sun, 29 Jan 2017 20:17:19 -0000, NY wrote:

"Rod Speed" wrote in message
...
You say "[the dual differential thermostat] somehow sensed the
temperature in the freezer" as if it was difficult or required ingenuity,
whereas surely each cabinet has its own bimetallic strip thermostat, set
to a different cutoff temperature, and then you either have two separate
compressors and separate refrigerant circuits or else if you want to cut
costs you have a single compressor, controlled by both thermostats using
"OR" logic, with one valve per cabinet, controlled by its thermostat,
which directs refrigerant where it is needed at that time - in the same
way that a central heating boiler that also heats a cylinder of water
usually has a single boiler and pump but valves to direct the heated
water where it is needed (CH / HW / CH and HW).

That obscenity of a sentence should be taken out the back and beaten
to death with the largest waddy you can find, before it multipys }-(
http://www.wordnik.com/words/waddy

Er, yes [blush] Did I really write that all as one sentence with barely a
pause for breath? Apologies for that.

I didn't even notice. Perhaps Rod has a small brain with insufficient memory for the whole sentence?

--
"Have you read The Three Musketeers?"
"No, only one of them."