Field Controls SWGII-5 Manual page 5

3. After determining the location of the venting system termination point (See Diagram A), cut a square hole
through the wall 1" larger than the outer pipe diameter of the power venter. Mount the power venter
through the wall, keeping the outer pipe centered in the hole. (See Figure 3) Fasten the power venter to
the outside wall with appropriate fasteners. Seal the edges of the power venter base plate to the wall
with a high temperature silicone sealant. DO NOT enclose the spaced plates on the power venter body.
This will result in reduced cooling of the power venter body. Galvanized metal sheets may be installed
over surrounding building surfaces to protect building materials from degradation by flue gases. Brick
or tile may be placed on the ground below the power venter to protect the soil and vegetation from the
effects of heated exhaust air. The power venter should be placed so that vegetation and other objects
are not in direct contact with the power venter or blocking the outlet. Snow should be cleared from the
outlet area as needed. Wood or vinyl siding should be cut so that the unit mounts directly on the wall
board to provide a stable support. If the siding is greater than
behind the power venter mounting plate. (See Figure 4)
NOTE: If mounting the power venter through a combustible wall material and the flue gas temperature
is above 400ºF at the power venter inlet, line the square hole with a piece of corrosion resistant sheet
metal or non-combustible material. The liner piece should be the same width as the wall section.
(See Figure 3) The power venter has maximum flue gas temperature of 550ºF at the power venter inlet.
Figure 7 shows how the airflow pattern through an SWG
reduces the required clearances to combustibles. For
installation in wall thickness over 8", use an SWG Series
Through Wall Extension Kit, Model PEK.
4. Remove the end pipe cover screws on the sides of the
outside pipe and remove end pipe cover. Then mount the
backing plate over the outer pipe and route the flexible
conduit and pressure switch tube through the holes
provided in the backing plate. Fasten the backing plate to
the inside wall with appropriate fasteners. (See Figure 5)
Re-install end pipe cover and screws.
Diagram A
⁄ " thick use a spacer plate or board
1
2
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Figure 3
Figure 4
Figure 5