Air Makeup Unit Technical Training Manual

Section 3

Gas Pressure Switch

NFPA 86 requires that an oven operate within a specified gas pressure range (not too high and not too low). The high gas pressure switch ensures the pressure is not too high. The low gas pressure switch ensures the pressure is not too low.

Oven Valve Train

High Gas Pressure Switch

Low Gas Pressure Switch

High Gas Pressure Switch Electrical Symbol

Low Gas Pressure Switch Electrical Symbol

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