Can anyone explain the metering device set up in a Carrier 50TJQ 012 501GA.
About 10 yrs. old.
2-3/8" liquid lines ,one heat one cool, go to 3/4" headers with eight 3/8"
outlets on each of two cicuits. Expansion happens at each of eight inlets to
the indoor coil . Are there orifaces in all 32 branches? I am about to try
Carrier's site for an explanation but no guaranties.
Purpose of multi circuits to minimize pressures drop in the coil
there are for making the coils (evaporators ) more efficient
in ACs systems and refrigeration systems depends on
tonnage size of system can go 14> circuits.
Also some systems may use these circuits to control capacity
if you are in business and you stay in it you may come across
many crazy setups. good luck.
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