7500-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
40 of 143
FIGURE 23: Manifold Dia
g
ram for Gas-Fired Air Turnover Unit with any FM-Compliant Manifold/XL-
Compliant Manifold Rated for Less Than 1,000 MBH (293 kW) and with Modulatin
g
Burner