View Full Version : Is it OK to oversize the Filter Dryer ??
10-19-2008, 01:56 AM
Hi,i have a guy coming over next weekend most likely and the last thing to get ready is the filter dryer for the Trane Xr14 i have.i want to get the Sporlan Catch All C-303-S cause its available but wondering if it would be a problem is there such a thing as oversizing with these.i dont have all the specs like tonage its good for but its very large 9" X 3".there's a sale on this one.
It seems like overkill would be OK but dont know.Its a R410A sysytem.
thanks for the help.
10-19-2008, 02:03 AM
Actually there is some specs on page 12 i just noticed.
10-19-2008, 02:43 AM
on top of this chart they dont even mention 410 A unless thats a typo ??
10-19-2008, 12:58 PM
nobody that knows,everybody stumped.looks like i'm gonna have to goto the other site.
10-19-2008, 01:20 PM
this is a new system?
it comes with a filter drier in it. adding another one to the system will be taking 2 steps backwards :rolleyes: if it is 410a and you're so worried i would make sure the guy putting it in takes neccesary steps in installation I.E. purging while brazing and pulling a vacuum down around 400-500 microns.
10-19-2008, 01:21 PM
The drier should be marked for 410 - If not the body of the drier will be thin for 410. Needs to be of heavy construction to accomidate higher pressures. The 410 systems use POE oil. It is especially suseptable to moisture and cannot be removed by evacuation alone. You must have the correct size filter drier for the correct tonage for many reasons. One is, that the "Enlarged" filter drier robs liquid refrigerant from doing its job where it belongs - in the coils! I could go on, but it is not neccessary. I think you get the point.
* The moisure if not removed effectively electroplates all "steel" surfaces - bearings - shafts - valves - rods - ect with copper ( because you have 2 dissimular metals in a system - combined with electricity from the motor/compressor - and the acid created by refrigerant and moisture mixing - there is electroplating. You will have early failure of the compressor with such a situation. Mainly because the space that needs to be is taken up by the electroplating effect and causes friction/heat because of tighness.
* EVen if the unit contains a drier inside...keep in mind when the system is opened outside of the pumped down condenser - moisture will obviously enter to opened section - That contains the evaporator which also contains portions of the compressor oil (The oil is infact throughout the system even being "pumped down"). If the existing drier inside the condenser is moisture latent - it will not remove the newly added moisture. Evacuation (even to 500 microns)will not remove moisture from the oil in the system that contains "POE" type oils. Only a new filter drier can do that. The moisture readily mixes with this type oil unlike other oils contained in R22 and such. The entire system should be recovered and new drier installed. Make sure he cuts the drier out - not using a torch - the heat free's the moisture into the system! Never allow 2 filter driers in one liquid line - it spells issues and pressure drops taking up the subcooling alloted for friction of the linesets. This severily effects the effiency and what is known as the seer rating and makes your 14 seer an 8 seer down the road!
Hope this answers your question - Just my 2 cents
tinknocker service tech
10-19-2008, 04:38 PM
if the system is new and never opened as long as the proper practices are followed and he doesnt cheat the dryer realy should not be needed.
this of course does not mean to leave it out. It means the dryer should not be an excuse to cheat. Get one that is rated for you size and for 410-a and be sure he does thing by the book
10-19-2008, 05:10 PM
Oh i see your saying it will add additional restriction to the freon and will not flow as good..Oh i see also i bet cause the compressor gives only a certain amount of pressure so adding additional would tire the compressor somewhat makes sense.
I'm sure it will work out OK cause he's certified.
The thing was i had researched filters and i liked what Sporlan said about the Catch All filter.If i wait then i have to go with what ever he shows up with most likely.He works with my wife's cousin and i didnt get to talk to him yet but hopefully in the next few days.
The XR14 was used in florida one or 2 seasons i bought it on ebay for 1/3 the price.Its not a heatpump.I opened the side door where the pipes go in and i didn't see a filter but i did noticed just a small 1 inch bubble i believe on the 3/8 line.maybe 1 inch by 2 i think i 'll have to look again.So from what i'm reading he'
ll probably even throw a dryer on the suction side for awile who knows.
I was tring to get this guy in the spring to do the whole job but was too busy so i bought a do it yourself DVD and installed a York 80,000 btu furnace i got for 1/2 price dented on filter side.i installed a honeywell f300a,sealed all holes with foil tape.i bought a sheet metal bender did 2 Transistions perfect. i bought 2 transistion kits sheet metal worked great.i had top use 1 week and a half of my vacation.i went to electrician school 20 years ago so i did all the electrical whips,3 thermistat wire runs--1 for new honeywell vision 8000--1 to the outdoor sensor --1 to the trane -18 guage 18/8 wire.
Also since i know pipes i ran black pipe half inch and it was tough ,in the right side down with a 45 degress then left then up and to the right cause the gas outlet was facing left.i union in the panel should be OK i still have to bleed out the air.SO now i read in the manual i need this guy also to do a startup check before we fire it goes into service.
So even though it does say 680 PSI on the filter dryer i feel the same way it should say R410A on it and is obviously an older model.How about the C-163-S ..i think i saw good for 4 ton in the specs. ???
Thanks for all the info.
10-19-2008, 06:21 PM
I'm gonna check the center door where i saw the electronics control card once maybe the filter is in there and i would have to get the exact same size then.
Anybody buy stuff online and what website do you like for parts ???
10-19-2008, 06:25 PM
This is not a DIY site.
Powered by vBulletin® Version 4.2.0 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.