8
TYPICAL MINIMUM AND MAXIMUM VENT LENGTHS
NOTE:
When terminating vertically, the restrictor plate W500- 0205 must be installed. Refer to Restricting Vertical Vents.
FIGURES 4 a-b
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION
Use only 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
