Labconco Protecto Ech Filtered Fume Hoods 183 Series 8' - Manuel (Page 181)

Appendix J: Setting Up the Protector Echo Floor-Mount
Product Service 1-800-522-7658 175
Original instructions
Vertical-Rising Sash Installation for the 4',
5', 6', & 8' Protector Echo Floor-Mounted
Filtered Hoods
The Protector Echo Floor-Mounted Filtered Hood has two vertical-rising sashes.
The rear vertical-rising sash moves from the floor to full open and picks up the
front vertical-rising sash, which travels from the midpoint to full open. The
vertical rising sashes are shipped captured between the hood side frame
assemblies of the lower base assembly. Both upper and lower sash tracks are
attached to the side frames. The hood should be at a pre-assembled state with the
top section bolted to the base, and the sashes still captured between the two side
frames. Bring the sides back and adjust the sash tracks left and right to assure that
each sash will work properly and tighten all hardware.
Now that the sashes are in place, the counterbalance weights must be installed.
The large single sheet metal sash weight is installed in the middle and attached to
the lower rear sash. The two individual sash weights counterbalance the front
vertical-rising sash; these weights have rollers and ride in the rear sash tracks that
straddle the middle sheet metal sash weight. Install the rear weight tracks for the
individual sash weights with the #10-24 screws and #10-24 KEPS nuts supplied.
See Figures J-2, J-3, and J-4. It is vitally important that the front upper and lower
sash tracks are fully aligned and the strap plates are used to secure this alignment.
See Figure J-3 and Figure J-4. Once the sashes are aligned and operating freely,
secure the lower base to the floor with sealant or fasteners. (Note: Hardware not
supplied due to installation variables.) Securing the lower base will ensure the
sashes will work freely.
As a last step, install the four rubber bumpers with #6 screws supplied. One set of
rubber bumpers prevents the front upper sash from traveling too low. The second
set of rubber bumpers prevent the rear lower sash from touching the floor and
provides a good sweep of clean air across the floor. See Figure J-3.