Author Question: Communicating systems can communicate with devices and networks outside the HVACR network using: ... (Read 51 times)

Yi-Chen · **on:** Jul 24, 2018

Communicating systems can communicate with devices and networks outside the HVACR network using:

A) Power line communication technology.
B) Special dedicated communication wiring to the outside network.
C) Internet.
D) Satellite uplinks.

Question 2

The main limit switch shuts the gas valve down when:

A) The house temperature reaches 80F. B) The heat exchanger area becomes overheated.
C) The blower motor overheats. D) The monthly BTU limit has been reached.