The following NuTone systems map to either the IM-3303 or IM-
4406 systems:
*If existing system is loop or partially loop wired, it can only be
converted to the IM5000 system. If the existing system is completely
home run wired, the system can be converted to an NM200
system.
appeNdix b - m&s
systems
100
model Nm
WH
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