Per the Luxaire parts list and diagram, that is definitely a MUFFLER, not a LLF. The parts states the LLF is a field installed extra that can be ordered.
Here is the link to that for questions...
http://m.master.ca/documents/0035_22747_001_c_0411.pdf
This is for the York branded unit, but the exact same as the Luxaire.
Getting technical, should be in the Pro forum.
As long as you can put your gauge on the discharge line (not liquid line), and keep your hand near the disconnect, you should be able to safely fill up the condenser with as much refrigerant as will fit. Just keep an eye on your gauges and be ready to cut the power once the discharge pressure starts spiking up.
This assumes that you know the difference between the discharge line and the liquid line. Don't ever put a filter-drier on the discharge line (unless it is hollowed out and empty and says "muffler" on it.
The real danger is a hydraulic burst.
Same reason they warn us about overfilling recovery cylinders.
If you leave no room for expansion and you fill to the brim and then the hot sun comes out.........boom.
the drier is on the liquid line right before it leaves the inside of the unit. i can see it in the picture. about 1-1/8" round and 6" long
york used to put the drier right at discharge on compressor. there are driers rated to handle this but the capacity of the drier drops.
trane compressor had been changed out by someone who didnt know what they were doing installed liquid line filter drier 6 inches from compressor discharge also cut down the discharge from 1/2 inch into a 163s drier. I got the call for no cooling condenser fan motor had locked up compressor pumped so hard before it went out on overload that it blew the teflon seal out of the roto-lock must have blown a cup of oil out into the unit. please dont install liquid line filter driers in the hot gas discharge line.
not to hi-jack thread but where do you put the liquid line filter drier in a unit with a bi-flow metering device? from the factory i have never seen on installed.
I've had a lot of leaks on those internally installed (non-copper) filter driers inside condensers on these specific York system in this specific development that are about 6-7 years old. When i check the charge and its quite low the filter drier is the first place i check on these systems then the evap coil.
Why can't you pump down a micro channel style condenser as long as it is not more than the factory charge?
Move the filter drier inside and install approx. 6" from the txv. No rusting and better protection of metering devices.
unless its a package unit how do you charge to the factory plate
Charge to the data plate on the condenser, and then add for the line set.
I am referring to the type of metering device that meters in both directions, one expansion valve for cool same expansion valve for heat. its only on units that would have had a very short liquid line. Water source heat pumps and package units mostly. in this case the liquid line is only really the liquid line in one mode. where to put it?