8
TYPICAL VENT INSTALLATIONS
NOTE: When terminating vertically, the restrictor plate
FIGURES 4 a-b
* See venting section
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION
Use the GD401 periscope kit to locate the air termination above grade. The periscope must be installed so that when fi nal grading is completed, the bottom air slot is located a minimum of 12" above grade.
FIGURE 5