All rights reserved. Printed in the United States of America. Page 4 a word that matches the picture (Listening Comprehension standard score = 84) and generate words within a category, describe scenes, and give directions (Oral Expression standard score = 83).
The power is supplied by a transformer, and when the thermostat makes contact between the 24 volt power and one or two of the other wires, a relay back at the heating/cooling unit activates the corresponding heat/fan/cool function of the unit(s).
The Thermostat. The thermostat is the first place to look if you suspect that the air conditioner may have lost its charge of coolant. In addition, sometimes units merely need a reset to trigger the electronic elements of the system.