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How many Thermostats per Outdoor Sensor

Hi Carol!

I wonder if multiple Robert Shaw / Lennox signaturestats can be attached in parallel to one external temperature sensor? I'd prefer to keep the wiring to the minimum, if possible.


  • Empire_2
    Empire_2 Member Posts: 2,343
    Hi \"C\"...

    What exactly are you thinking of doing? How many stats and do you have, the Mod #'s, etc... If I read you correctly you want 1 sensor to operate off 1 or more stat's depending on which calls. What about averaging sensors and a different type stat?

    Mike T
  • Constantin
    Constantin Member Posts: 3,782
    Several zones...

    Hi Mike,

    It's a pretty simple multi-zone Lennox system I have here. The Signaturestats that I have been retrofitting to give me better dehumidification control also allow a external temp sensor to be hooked up to allow the signaturestats to show the external temperature (and/or use precision modes).

    However, it is unclear whether the singaturestats can share one external temp sensor, like Tekmar controls can, or whether they each need a twisted wire pair going to an external sensor. I
  • carol_3
    carol_3 Member Posts: 397

    Maybe you could ask Lennox? Sometimes the territory managers (TMs) are pretty sharp.
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