Microchannel Condenser and Subcooling for 410A

[toy501]

I was told by the local Mcquay rep. here that on microchannel condenser coils that as the load on the system goes up the subcool goes up and when the load on the system goes down the subcool goes down. Should i throw out the window all i learned in school about subcool? Is it something to do w/ the all aluminum microchannel condenser coil w/ 410A? See attachement & look at checking subcool #5, It even states there what the Mcquay rep. said. Unit in question is a Mcquay Maverick 11 MPS040E. Can somebody here enlighten me on this subject..

[BaldLoonie]

I think they typed it backwards. Low subcool usually says low charge not too much as they said!

[Epicfail]

I see they farmed their Operations Manual design, type, spell check, data check (you get the point) off to China also, DAMN THEM. One more thing to trouble shoot...

[jdaugrefer]

Subcooling let's me know how much ref is in condenser coil. Perhaps as the load on the unit goes up they regulate the liquid ref. forcing more into the coil to keep. up maybe using some new epr valve only for the condenser.

Thoughts any one ?

[stickinit2thman]

I think they typed it backwards. Low subcool usually says low charge not too much as they said! I agree, it says to adjust superheat follow instructions below, then starts on subcooling,I think its a misprint as the temps suggested sounds more like superheat measurements. It didnt say to check subcool, it says to adjust superheat then goes into what sounds like someone that printed manual has there info crossed. But I could be wrong, any other ideas anyone?

[oldertech]

Under the Checking Subcooling heading there aren't any temperatures. Everything under that heading looks good. Item 5 simply got misprinted, apparently nobody proofread.
A heavy load will increase temperature of the refrigerant leaving the evap. coil, raising pressure in the TXV suction sensing bulb, opening the TXV, allowing more refrigerant flow, lowering the superheat. If the flow is great the subcooling will decrease.

[oldertech]

I was told by the local Mcquay rep. here that on microchannel condenser coils that as the load on the system goes up the subcool goes up and when the load on the system goes down the subcool goes down. Should i throw out the window all i learned in school about subcool? Is it something to do w/ the all aluminum microchannel condenser coil w/ 410A? See attachement & look at checking subcool #5, It even states there what the Mcquay rep. said. Unit in question is a Mcquay Maverick 11 MPS040E. Can somebody here enlighten me on this subject..

York uses Microchannel coils as well. They do not change the laws of physics.