trane xv95 intake/exhaust

[tosid]

hi - i just had installed a trane xv95. i know its a closed system. but---- the installer used a bayair30avent going thru the side or the house. it comes thru the house on the inside corner where there is an L portion of the house. because it on the inside corner of the L , and on the north side of the house. alot of the time the exhaust catches up, swirls around, and hangs in this L portion of the house. question is --- this exhaust is being recyled back into the fresh air intake, anything i concerned about ? it cant be good for the furnace. anyway it can get back into the house? its not like it's hangs there for a brief moment, on stage 1 the furnace runs for longer periods of time, and the exhaust air is constantly being blown back into the corner and into the intake air on certain days. any danger of having a closed window 4 feet to the side of it , that it also seems to creep over to ? thanks

[ampulman]

hi - i just had installed a trane xv95. i know its a closed system. but---- the installer used a bayair30avent going thru the side or the house. it comes thru the house on the inside corner where there is an L portion of the house. because it on the inside corner of the L , and on the north side of the house. alot of the time the exhaust catches up, swirls around, and hangs in this L portion of the house. question is --- this exhaust is being recyled back into the fresh air intake, anything i concerned about ? it cant be good for the furnace. anyway it can get back into the house? its not like it's hangs there for a brief moment, on stage 1 the furnace runs for longer periods of time, and the exhaust air is constantly being blown back into the corner and into the intake air on certain days. any danger of having a closed window 4 feet to the side of it , that it also seems to creep over to ? thanks

Four feet sounds awfully close to a window. Check with local codes. Was a permit pulled? Inspected?

AM

[karsthuntr]

Most manufactures want the vent at least 6 feet from an inside corner, 10 feet is better.

[second opinion]

hi - i just had installed a trane xv95. i know its a closed system. but---- the installer used a bayair30avent going thru the side or the house. it comes thru the house on the inside corner where there is an L portion of the house. because it on the inside corner of the L , and on the north side of the house. alot of the time the exhaust catches up, swirls around, and hangs in this L portion of the house. question is --- this exhaust is being recyled back into the fresh air intake, anything i concerned about ? it cant be good for the furnace. anyway it can get back into the house? its not like it's hangs there for a brief moment, on stage 1 the furnace runs for longer periods of time, and the exhaust air is constantly being blown back into the corner and into the intake air on certain days. any danger of having a closed window 4 feet to the side of it , that it also seems to creep over to ? thanks

IMC 805.3.4 (3) Horizontal termination 4 feet horizontal/4 feet below/or 1 foot above any window or door or gravity air inlet.

(4) The vent termination point shall not be closer than three feet to inside corner formed by two walls.

[tosid]

ok - thanks for all the input. what about the furnace exhaust being sucked back into the fresh air intake - the effect it has on the furnace ? what about damage to the cedar siding? and is there anyway that this exhaust can work its way back into the house other than thru an open window. thanks so much!!

[second opinion]

ok - thanks for all the input. what about the furnace exhaust being sucked back into the fresh air intake - the effect it has on the furnace ? what about damage to the cedar siding? and is there anyway that this exhaust can work its way back into the house other than thru an open window. thanks so much!!

Post a picture. It should not be a problem.

Cedar and redwood deal with moisture better than most woods. Treat it with Cuprinol by Sherwin Williams and you should be ok.

[gfitter2002]

I'd have to say the heat exchanger wont last long if thats the case,and possible intermittent operation because of lack of adequate combustion air.

[BillPry]

Typically the only problem you will run into with recirculation is frost build up in the intake pipe in cold weather. The pressure switch will then sense this restriction and cause a fault code and subsequently a lack of heat.

In Canada we are allowed to vent 12" from windows up to 100,000 BTUH and 3' for inputs above. In normal operation there is not a lot carbon monoxide in the flue gasses so there isn't much of a concern.

As for your siding, I would suggest a 24" square of sheet metal or equivalent to prevent damage from condensation. It is also recommended that any small openings in close proximity be caulked or sealed.

[iyaayas]

May check here, on page 16.
http://www.trane.com/CPS/uploads/use...d6-30_0407.pdf

[tosid]

just wanted to thank everyone for their input. i do have the installers manual. but unfortunately it doesnt give a clearance from the inside corner to the vent - it says to go by the local code ---- and thats why i have a new furnace and hot water tank. there basically isnt any code where i live - on something like this they will tell you it's whatever the mfg specifys. you wouldnt believe what i took out and had replaced----then again you probably would.

second opion - i wouldve posted a picture, i tried a dozen times , it kept saying the upload failed. checked the file size and it was ok -- thanks

[geodude]

Read pages 25 and 26 of your install manual.

[geodude]

12" to inside or outside corner, opening window or not, 12" below unvented soffit, 12" from combustion air inlet to furnace. On page 26 of your install manual. If you do in fact have an xv95 install manual. Check table 14











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[tosid]

maybe ive got an updated manual. on page 26 - table 14 , it lists A thru M for direct vent clearances. corners, sofits, windows are listed as the following
B= clearance to window or door that may be opened -- canadian -3' over 100,000 btu american - 4' below or to the side of opening; 1' above opening.
C= clearance to permantly closed window - * for both canada and us install
E= clearance to unventilated sofit - * for both canadian and american install
F= clearance to outside corner - * for both canadian and american installs
G= clearance to inside corner - * for both canadian and american installs.


then at the bottom of the table it lists -* as a footnote, as the following - "clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturers installation instuctions".

my manual doesnt give any measurements for the above. just the footnote.

also in my manual on page 25, table 13 for non- direct vent terminal clearances, it lists corners ,windows and sofits the same as direct vent.

and lastly awhile back i checked the model number from the inside of the furnace to the model number on the outside of the manual to see which model pertained to me in the manual.

thanks for the input !!!