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Author Question: Why do communicating control boards often have terminals for traditional 24 volt controls? What ... (Read 32 times)

RYAN BANYAN

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on: Jul 26, 2018
Why do communicating control boards often have terminals for traditional 24 volt controls?
 
  What will be an ideal response?

Question 2

How do some communicating systems operate with only two wires between the indoor blower and the condensing unit?
 
  What will be an ideal response?


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SVictor

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Reply #1 on: Jul 26, 2018
Answer to Question 1

To allow communicating equipment to be connected using a traditional thermostat.

Answer to Question 2

The outdoor unit has its own transformer, allowing the use of just two communication wires between inside and outside.


RYAN BANYAN

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Reply 2 on: Jul 26, 2018
Wow, this really help

carojassy25

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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