Patterson-Kelley MACH-05 - Manual (Page 52)

MACH® Series Gas-Fired Boiler Parts and Technical Support
Page 48
6.2.7 C-450 Boiler Gas Train
Mark Description
1 Main Gas Shut-off Valve
2 Low Gas Pressure Switch
3 High Gas Pressure Switch
4 Gas Safety Shut-off/Control Valve
5 Gas Manifold Shut-off Valve
6 Air/Gas Manifold
7 Swirlplate
8 Blower
9 Gas Leak Test Port
10 Flex Hoses with Gas Valve Adapters