IBC EX 700

Low pressure switch
Low fire adjustment
Mixing device
Figure 42 Gas valve and fan components - EX 400, 500
Fan
Mixing device
Gas high pressure switch
Three- (3) wire Molex plug
Inlet gas pressure test port (location of)
Gas low pressure switch
Low fire adjustment (zero-offset)
High fire adjustment (on the side)
Manifold gas pressure test port
68
Section: Boiler operation