Roberts Gorden NDUSTRIA NHE Series Installation, Operation & Service Manual page 29

FIGURE 20: Swirler Installation Model: NHE-150, 40' Straight Tube; Swirler Package - 10' (3 m) (p/n 03051509K)
Burner Tube
Coupling
FIGURE 21: Swirler Installation Model: NHE-150, 40' U-Tube; Swirler Package - 10' (3 m) (p/n 03051509K)
Tab
Vent Adapter
10' (3 m) Tube
Burner Tube
See Page 31 for U-Tube installation instructions.
Swirler
Adapter
Section
Swirler
Starter
Section
Swirler
Starter
Section
Swirler
Adapter
Section
10' (3 m) Tube
SECTION 6: H
Pivot Point
Swirler
Starter
Section
Swirler
Adapter
Section
Swirler
Starter
Section
Pivot Point
Swirler
Adapter
Section
I
EATER NSTALLATION
Tab
Vent Adapter
U-tube
25