Document: 333D012G
5-18-2007
- 27 -
Accessing the down flow and exhaust filters
WARNING
Only qualified technicians should perform this procedure.
Decontaminate the cabinet before changing the filters.
1.
Decontaminate the cabinet and disconnect power.
2.
Close the viewscreen.
3.
Pull the bottom edge of the vertical dress panel out away from the cabinet. Hinge the dress panel standoff down
and lower the vertical panel on it. Unplug tygon tube from the back of the magnehelic gauge. Firmly grip the
bottom edge of the vertical dress panel with both hands, slide the panel to the right and lift the panel off the
cabinet.
4.
Remove the light canopy locking fasteners inside the sloped dress panel and lower the canopy. Make sure the
canopy support cables on each end are secured.
5.
Remove the two screws at the top and loosen the two lower lock nuts holding the sloped dress panel. Lift the
panel off the cabinet.
6.
Loosen the four lock nuts holding the electrical mounting board and carefully lift the board off. Lay it face
down inside the light canopy. (No electrical connections should need to be disconnected)
7.
Loosen each of eight (10) 3/8” hex head bolts holding the front access panel. Be careful not to damage or loose
the seal washer on each bolt when removing them. Remove the access panel. Be careful not to damage the panel
gasket.
8.
You now have direct access to change the down flow and exhaust filters.
Interior view of positive pressure plenum with blower and filters
Blower
Down flow plenum
clamping bolt
Down flow plenum
clamping bolt
Down flow filter
Exhaust plenum
clamping bolt
Exhaust plenum
clamping bolt
Exhaust filter
Down flow plenum
Exhaust plenum
Содержание SG403A
Страница 35: ...Document 333D012G 5 18 2007 34 Appendix ...
Страница 38: ...Document 333D012G 5 18 2007 37 Dimensional Drawing Standard Configuration SG403A ...
Страница 39: ...Document 333D012G 5 18 2007 38 Dimensional Drawing Standard Configuration SG603A ...
Страница 41: ...Document 333D012G 5 18 2007 40 Interior View Exterior View Cable port plug not shown ...
Страница 42: ...Document 333D012G 5 18 2007 41 Ladder Schematic SG403A ...
Страница 43: ...Document 333D012G 5 18 2007 42 Ladder Schematic SG603A ...