Perform the following procedure to assemble the economiz- er hood.
1.Apply black seal strip (provided in package) to outside
2.Assemble hood sides, top, and cross member with gasketed screws provided. See Fig. 37.
3.Attach 15 green speed clips (provided) to hood top.
4.Apply black seal strip (provided) to mounting flanges of hood sides being sure to cover mounting holes. See Fig. 38.
NOTE: Each hood assembly has one hood side with slots and one hood side without slots. On the
5.Apply black seal strip (provided) to back of hood top mounting flange. Seal strip of hood top mounting flange must press tightly against seal strip of hood side mount- ing flanges. See Fig. 39.
6.Add gray foam strip (provided in package) to cross mem- bers on bottom tray. See Fig. 40.
7.Place gray foam strip (provided) on inside of slotted hood side between filter and cross member opposite the mount- ing end. See Fig. 41.
8.Attach gray foam strip (provided) to
9.Remove the screws on each end and along top of damper assembly of unit. Remove top 4 screws on each side of filter panel under damper assembly. Set hood assembly in place and attach to unit using these screws.
10.Attach the
11.Remove screws along bottom of damper assembly. Lo- cate and mount blockoff baffle using these screws.
12.Assemble 2 filter tracks
13.Attach mounting angle (without tabs) to the assembled end of the filter track. See Fig. 43.
14.Attach 9 green speed clips (provided) to hood side panels without slots. Engagement section of clip faces up and to- wards the outside of the hood side panels.
15.Attach remaining mounting angle (with tabs) to other end of the filter track with no. 10 screws provided. See Fig. 44.
16.Place filter track assembly in bottom of hood by placing tabbed end into slotted side (with tab on bottom) and attaching opposite end to hood with speed clips and gasketed screws provided. Tabs can be hand bent after they have been inserted into the side.
NOTE: The filter track assembly end with screws should face away from the other hood when mounted on the unit. Be sure the filters are installed with the airflow in the correct direction.
NOTE: Tabs from both filter tracks will be in the same space. After one filter track has been inserted into hood side, bend the tabs so they will not interfere with installation of the second/ center hood.
17.Attach black seal strip (provided) to filter cover. Seal strip should be applied centered over the holes of the one flange, making sure to fully cover holes and centered over the other large flange. See Fig. 45.
18.Slide two 20 x
TOP
FLANGE
BLACK
SEALHOOD SIDE STRIP
Fig. 36 — Adding Seal Strip to Top of Hood Sides
NOTE: Left side economizer hood has mounting angle without tabs and filter rack assembled end on the opposite side.
Fig. 37 — Economizer Hood Assembly
(Right Side/Center Economizer Hood Shown)
49