Motorized impeller replacement – Labconco Class I Enclosure Models 3980423 User Manual
Page 51
Chapter 6: Maintaining Your Filtered Enclosure
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Motorized Impeller Replacement
The motorized impeller must be replaced as a complete unit. When the motorized
impeller is replaced, the capacitor may also be replaced. See Appendix A for
Replacement Parts Diagram. See Figure 6-5 for an isometric view of the motorized
impeller plenum assembly. The HEPA filter rests on top of the motorized impeller
assembly.
Do NOT contact blower wheel while still in motion.
NE PAS être en contact avec la roué du ventilateur tant qu’il est
en marche.
1. Wear appropriate personal protective equipment to decontaminate the filtered
enclosure and then unplug from the electrical outlet.
2. Remove HEPA filter per the HEPA filter removal procedure outlined in this
chapter.
3. Consult the wiring diagram in Appendix C of the manual and disconnect all the
wires of the motorized impeller. Be sure to connect wires on the new motor in
the same way the old motor was wired.
4. Remove four screws in the motor bracket that hold motor bracket to the
supports with the vibration isolation mounts. Remove the motor and bracket.
ATTENTION: High-speed blower. Never operate impeller
with housing off.
5. Replace the capacitor with a new one of equal voltage and capacity.
6. Reassemble the new motorized impeller by reversing the assembly steps.
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- Class I Enclosure Models 3980421 Class I Enclosure Models 3980403 Class I Enclosure Models 3980401 Class I Enclosure Models 3980323 Class I Enclosure Models 3980321 Class I Enclosure Models 3980303 Class I Enclosure Models 3980301 Class I Enclosure Models 3980223 Class I Enclosure Models 3980221 Class I Enclosure Models 3980203 Class I Enclosure Models 3980201 HEPA Filtered Enclosure Models 3980422 HEPA Filtered Enclosure Models 3980420 HEPA Filtered Enclosure Models 3980402 HEPA Filtered Enclosure Models 3980400 HEPA Filtered Enclosure Models 3980322 HEPA Filtered Enclosure Models 3980320 HEPA Filtered Enclosure Models 3980302 HEPA Filtered Enclosure Models 3980300 HEPA Filtered Enclosure Models 3980222 HEPA Filtered Enclosure Models 3980220 HEPA Filtered Enclosure Models 3980202 HEPA Filtered Enclosure Models 3980200