Now in its sixth edition, ELECTRICITY AND CONTROLS FOR HVAC-R equips readers with the information needed to work effectively with all types of motors and control devices found in the heating and air-conditioning industry. Prior knowledge of electricity is not required as this book begins with discussion of essential basic electricity and electrical circuits concepts. Numerous schematic diagrams and step-by-step troubleshooting procedures are included to acquaint readers with all of the different types of circuits commonly encountered in the HVAC-R field. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.The time delay contact (TDR) is connected in series with the blower motor relay coil. ... PUMP I TR; OFF DELAY TIMER 1 MINUTE D TDR 0 at 3% Ia#39;Ii RELAY D BMR C Developing Wiring Diagrams IIBIEIIa#39;IIIIES Aiter studying this unit the student.
|Title||:||Electricity and Controls for HVAC-R|
|Author||:||Stephen Herman, Bennie Sparkman|
|Publisher||:||Cengage Learning - 2009-06-12|