[Richard Higer]

Our building engineer wants all non-venting washer dryer units to have the washer connected to the buildings main air duct.
The manufacturer says it isn't necessary. The machine has worked perfectly for 4 years with no drainage problems whatever.
Is an air intake necessary to the main building air duct or is any air put into the drain necessary?

Does a non-vented washer/dryer need an air vent in its drain?

 

[beenthere]

Made this its own thread.

 

[oh'mike]

Yes it does----and has for many years---how was this built without one,I wonder.

 

[dd57chevy]

Our building engineer wants all non-venting washer dryer units to have the washer connected to the buildings main air duct.
The manufacturer says it isn't necessary. The machine has worked perfectly for 4 years with no drainage problems whatever.
Is an air intake necessary to the main building air duct or is any air put into the drain necessary?

Does a non-vented washer/dryer need an air vent in its drain?

I assume your "engineer" means sewer vent when he says it needs to be connected to the building's "main air duct" . I hope so , anyway .........

Depending on your buildings drain system's condition/design , the volume & force of a washing machine's drain cycle could cause problems if not vented .

 

[Ghostmaker]

Yes it does----and has for many years---how was this built without one,I wonder.

Not very clear post here...:vs_OMG:

 

[oh'mike]

Not enough coffee----

 

[WhatRnsdownhill]

Our building engineer wants all non-venting washer dryer units to have the washer connected to the buildings main air duct.
The manufacturer says it isn't necessary. The machine has worked perfectly for 4 years with no drainage problems whatever.
Is an air intake necessary to the main building air duct or is any air put into the drain necessary?

Does a non-vented washer/dryer need an air vent in its drain?

you have to clarify....do you mean the dryer exhaust needs to be vented outside, or a vent line on the washing machine drain?:vs_worry: