Payne PG9MXA Installation, Start-Up, And Operating Instructions Manual page 56

Table 15 – Model PG9MXA Orifice Size and High/Low-Heat Manifold Pressures for Correct Inputs
for Use with 060 Through 120 Size Furnaces Only
(Tabulated Data Based on 20,000/13,000 Btuh per Burner,
Derated 2 Percent for Each 1000 ft (305 M) Above Sea Level)*
A08376A
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