Esco Class II User Manual

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5.4.1.3. Downflow Filter Replacement
Figure 5.4. Downflow filter replacement
1. Move the sash window until it reaches the arm rest.
Note: For motorized sash BSC, remove the window straps after moving the sash window to the lowest
position.
2. Remove red plenum cover using Philip screw driver.
3. Loosen those four bolt adjusters to elevate the plenum from downflow filter.
Caution: Be careful when adjusting the bolt adjusters. This might damage the filter gasket.
4. Take out the downflow filter carefully.
5. To install new filter, just do a reverse procedure from Step 4 to Step 1.
5.4.2. Blower Replacement Procedure
Figure 5.5. Blower replacement
To replace the blower, do the filter replacement steps until the blower plenum assembly can be removed from
the cabinet, then do the following steps:
1. Unscrew all those screws on the front and sides as shown in the image above.
2. Take out the blower carefully.

Esco Class II Specifications

General

Lighting	LED
UV Light	Optional
Certification	NSF/ANSI 49, EN 12469
Airflow Pattern	Laminar
Inflow Velocity	0.38 m/s ± 20%
Downflow Velocity	0.25 m/s ± 20%
HEPA Filter Efficiency	99.99% at 0.3 μm
Material	Stainless steel
Noise Level	< 65 dBA
Front Opening	200 mm (8")
Application	Microbiology, cell culture
Type	Biosafety Cabinet