Installation Common to All
Leading the vent
through the roof
Leading the vent
through the wall
The Diffusor
Drain
Installation
Handling Effluent
As shown in the installation, the vent stack should end about
30” above the peak of the roof so that it is less subject to downdraft.
Where the pipe is taken through the roof, a roof flashing may be
required to seal the installation. If you are in an area where snow shear
is a danger, you may wish to install a heavier pipe around the vent pipe
where it exits from the roof. If you do choose to do this, ensure that
you seal the area between the pipes with a waterproof substance to
prevent leaks.
When it is necessary to lead the vent through a wall, connect one 45°
elbow on the vent outlet on the unit. Using a 2” hole saw or other
appropriate tool, cut a hole through the wall board behind the unit so
that the vent pipe can be inserted into the 45° elbow. Cut a similar
hole on the other side of the wall that is slightly higher then the inner
hole so that the vent pipe will be angled upward at 45°. If installing
through an exterior wall, waterproof sealant will be required around the
vent pipe where it emerges from the building.
The diffusor provided with the unit is a simple device to be
installed at the top of the vent stack with the larger pipe pro-
truding above the smaller. To install, simply glue the diffusor
vertically on the topmost section of vent pipe. The diffusor
design encourages updraft, and discourages wind and weath-
er from going down the vent stack. We do not recommend
installing anything else on the top of the vent as it could
impede the venting. Unlike wind turbines, diffusors are less
likely to freeze in winter, and are more effective in calm
weather.
The safety drain should be connected as it will be required.
- Remove the orange cap from one side of the overflow drain assembly.
- Place a 1” hose clamp over the end of the drain hose that will be connected to the overflow drain
assembly.
- Push the drain hose over the ribbed end of the over-flow drain and clam with the 1” SS hose clamp.
- Connect the 1” hose to an approved drainage facility.
The following are possible options to take care of the liquid :
- Feed into a lined pit filled with gravel and sand. Such a
recycling bed also ensures a closed loop system.
- Feed into a small cesspit or “french drain”.
- Plumb into an existing septic or holding tank line.
Installation should be in accordance with applicable local regulations.
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