Roberts Gorden NDUSTRIA NHE Series Installation, Operation & Service Manual page 28

NHE-S I , O
ERIES NSTALLATION PERATION AND
FIGURE 19: Swirler Installation Model: NHE-125, 30' U-Tube; Swirler Package - 20' (6 m) (p/n 03051511K)
Tab
Vent Adapter
10' (3 m) Tube
Burner Tube
Note: Swirler installation for
this model must be complete
prior to coupling installation
for proper swirler starter tab
placement.
See Page 31 for U-Tube installation instructions.
24
S M
ERVICE ANUAL
Swirler
Starter
Section
10' (3 m) Tube
Swirler
Starter
Section
Coupling
5' (1.5 m) Tube (tubes cut in field)
Fold swirler tab
over tube as shown
Internal
Coupling Pin
Pivot Point
Swirler
Adapter
Section
Swirler
Adapter
Section
Swirler
Adapter
Section
5' (1.5 m) Tube (tubes cut in field)
Swirler
Starter
Section
Pivot Point
Swirler
Adapter
Section
Swirler
Adapter
Section
U-tube
Coupling