Vision Pro 9000 & outdoor temp sensor ...

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Old 04-07-11, 02:26 PM
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Vision Pro 9000 & outdoor temp sensor ...

I have a TH9421C 1004 thermostat with EMI and Tru Steam humidifier. I want to install an outdoor temp sensor - C7089U 1006 You opined that it would probably work if I ran the sensor wires within the heat pump cabling, using spare wires - thank you!
The sensor instructions say to attach to S1 &S2 inside the thermostat - but there are no such points within the VisionPro 9000 !!!! (only 3 wires going to the EMI) My question ... where do I hookup the 2 wires from the sensor to the system?

Once again, thank you for your help!
Bob
 

Last edited by hvactechfw; 04-07-11 at 03:24 PM. Reason: MERGED 2 THREADS WITH SAME EXACT QUESTION
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Old 04-07-11, 03:25 PM
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they connect to the out terminals in the EIM.
 
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Old 04-08-11, 07:22 AM
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Thank you - the diagram is especially helpful !!!
 
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