CHAPTER VII 



DRIVES AND CONTROLS 



Page Page 



Significance of WR^ 208 Electric Control Methods 224 



Analysis of Motor Load 211 Electrically Operated Valves 231 



Selection of Motor Tjrpe 214 Automatic Timers 234 



Inquiry Form for Electric Motors 218 Trigger Switch Mountings 237 



Winding Connection Diagrams for Multi- Thermostatic Mechanisms 242 



speed Motors '. 220 Automatic Stops 248 



207 



