Question on wiring of replacement for Lennox 51M27

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Old 10-28-20, 08:54 PM
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Question on wiring of replacement for Lennox 51M27

Replacing Lennox Signature Stat 51M27 with Honeywell RTH6500WF. What do I do with the two separate wires that come from some outdoor sensor that was installed? Ca

Signature Stat 51M27 wires
n I just tape them off; what functionality would I lose?
 
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Old 10-28-20, 09:06 PM
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Welcome back. We haven't seen you in a while.

Normally an outdoor temperature sensor would be used for a heat pump system
but that stat specifically says for non heat pump applications.

Doesn't look like a major loss. Just cap the wires off.

 
 

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