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).
Testing the Thermostat. With the tank cold turn on power to the water heater and measure for voltage from the top thermostat to the upper element, it should read 240-Volts. Check for power being fed to the lower thermostat and element, in this case it should read 0-Volts.