Roberts Gorden NDUSTRIA NHE Series Installation, Operation & Service Manual page 30

NHE-S I , O
ERIES NSTALLATION PERATION AND
FIGURE 22: Swirler Installation Model: NHE-175, 50' Straight Tube; Swirler Package - 15' (4.5 m) (p/n 03051510K)
Fold swirler tab
over tube as shown
Internal
Coupling Pin
Burner Tube
Tube and Reflector Hanger
Coupling
Note: Swirler installation for
this model must be complete
prior to coupling installation
for proper swirler starter tab
placement.
FIGURE 23: Swirler Installation Model: NHE-175, 50' Even U-Tube; Swirler Package - 15' (4.5 m) (p/n 03051510K)
Tab
Vent Adapter
10' (3 m) Tube
Burner Tube
See Page 31 for U-Tube installation instructions.
26
S M
ERVICE ANUAL
Swirler
Starter
Section
Swirler
Starter
Section
Swirler
Adapter
Section
10' (3 m) Tube
Coupling
Swirler
Adapter
Section
Swirler
Starter
Section
Swirler
Adapter
Section
Swirler
Starter
Section
Pivot Point
Swirler
Adapter
Section
Fold swirler tab
over tube as shown
Internal
Coupling Pin
Swirler
Starter
Section
Pivot Point
Swirler
Starter
Section
Tab
Vent Adapter
Coupling
5' (1.5 m) Tube (Tube(s) cut in field)
U-tube