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4.
Sequentially tighten the four exhaust filter sealing bolts located at each corner of the
exhaust filter tray until the exhaust filter gasket is compressed no more than 50%.
The exhaust filter sealing bolts should only be tightened enough to ensure a
proper seal of the exhaust HEPA filter. At maximum tightness, the exhaust
filter's gasket should be compressed to 50% of its original thickness. NEVER
tighten the bolts beyond this setting.
5.
Install the blower chamber cover, uniformly tightening the screws on the cover until
the gasket has formed a proper seal.
6.
Install damper bolt seal as described earlier in this section.
7.
Install the front dress panel.
8.
Plug in the cabinet and recertify it before use.
Type B2 Exhaust Damper Adjustment
The exhaust damper adjustment blade is located on exhaust stack. Using a #2 Phillips
screwdriver, loosen the damper locking screw to move the damper open or closed, as
shown in Figure 6-23.
Figure 6-23
Damper Locking Screw
