(b) Figure 5.59 Intermittent (electronic) pilot ignition system with vent damper gravity flow or continuous circulation: (a) diagram; (b) description. (Courtesy of ... On boilers with circulators that are wired to run continuously, the circulator operates as long as the switch providing power to the boiler is closed. 2. A component check circuit in the G60 is activated which checks the electronic network in the G60 3.
|Title||:||Residential hot water and steam heating|
|Author||:||Martin L. Greenwald|
|Publisher||:||Prentice Hall - 1987|