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Ferrite Ring Installation
Gas and Steam Models with OM and RM Control Suffixes Only (Models Through 7/31/11)
The ferrite ring provided in the literature packet must be installed over the power leads during connection of electrical service. The
ferrite protects the sensitive electronic controls from destructive electrical disturbances which may be present on power lines to the
machine. Failure to properly install the ferrite ring may result in damage to the electronic controls and will void control warranty.
To install:
1.
Immediately after connection of power leads and before ap-
plying power to machine, locate each of the incoming service
leads including ground.
2.
Snap the ferrite ring closed over all the service leads inside of
the contactor box as shown. It is important that the ferrite ring
be installed inside the contactor box. Refer to
Figure 28
. Do
not install the ferrite outside of the box or other area. Make
sure that service leads are in the center of the ferrite before
closing the ring so as not to pinch or damage leads.
Electrical Requirements
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57
Part No. 70457901ENR12
Summary of Contents for YU050E
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