Type A2 (12-Inch Sash) & C1 Supply Blower/Motor - Labconco Logic+ A2 Technical Manual

Type A2 (12-inch sash) & C1 Supply Blower/Motor
Type A2 12-inch models and Type C1 models have two blower/motor assemblies. One
is the supply blower/motor, and one is the exhaust blower/motor assembly. This section
describes access/replacement of the supply blower/motor assembly.
If replacing a blower/motor assembly, the motor must be programmed at Labconco.
The blower/motor assembly must also be balanced by Labconco, and therefore it is
strongly recommended to replace the blower/motor assembly, never the motor or
blower individually. Failure to replace the blower/motor with a genuine Labconco
assembly will result in failed or incorrect operation, which can jeopardize the protection
the biosafety cabinet provides the operator, product, and lab environment.
Blower/motors can be awkward to handle, and the blower wheel may contain sharp
edges. Use safe lifting techniques when removing and replacing the blower/motor.
Always wear gloves and eye protection when handling a blower/motor assembly.
1. Thoroughly and properly decontaminate the biosafety cabinet.
2. Remove the front dress panel as described earlier in this section under
of External Dress
3. Loosen all of the Phillips screws around the perimeter of the blower/plenum
cover. Remove all screws except two along the top edge of the cover. This will
support the cover. The sash stop bracket is held in place by two of the
blower/plenum cover screws. Remove this bracket.
4. Remove the last two screws. The blower/plenum cover will rest on the center
sash support (Figure 12-32) after the final screws are removed. Gently break the
gasket seal on the cover by starting in one corner. Use a flat screwdriver if
necessary, taking care not to damage the gasket or panel by prying too hard in
one area. Once the gasket seal is free, slide the cover to the left or right, and
bend it slightly to free one end by getting it past the corner post. Lift the
blower/plenum cover off.
Panels. Unplug the power cord to this biosafety cabinet.
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Removal