Power Choke
(4 and 5 Ton
Only)
Blower Motor
(B3)
To Remove Blower From Unit: Remove access panels,
Control box, Bolts and Wiring Jackplugs.
Then Slide Out Front of Unit.
FIGURE 6
WARNING
During blower operation, the ECM motor emits
energy that may interfere with pacemaker operation.
Interference is reduced by both the sheet metal
cabinet and distance.
-
-
IMPORTANT
Earlier ECM motors used on other Lennox furnace
models are not interchangeable with motors used
on the SL297UH furnace line.
-
-
STATOR
(WINDINGS)
OUTPUT
SHAFT
BEARING
ROTOR
FIGURE 7
-
-
-
Internal Operation
-
-
-
Initial Power Up
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