103 / 156
Electrical Theory & Applications for HVACR
©2012 ESCO Group
Student Worksheet
Page 91
Chapter 4: Understanding Wiring Diagrams
Name _______________________________
Date _____________________
With the system in the normal operaƟng mode, what voltages would you measure across the following?
1. L1 to L2: ______________
2. Across the coil in line 11: ______________
3. R to G on the Thermostat:______________
4. Condenser Fan Motor: ________________
5. Transformer Primary: ______________
6. Across contacts on line 8:______________
7. From y to Line side of coil on line 11: __________ 8. Across the fuse in line 10:________________
1
2
3
4
5
6
7
8
9
10
11
12
13