Detroit Radiant Products Company DES3 Series - Manual (Page 16)

16
Radiant Tube Assembly
To install the radiant tubes:
Place tubes in hangers with the welded seam facing downward and the swaged end of the tube
towards the exhaust end of the heater system (see figure 3.8).
Refer to the Series Insert Manual for tube installation sequence. Place the combustion chamber as
the first tube connected to the burner control box. These tubes have an identification sticker on the
swaged end.
Slide tube clamps onto radiant tubes (see figure 3.9).
Figure 3.8 • Attach Hangers
Figure 3.9 • Attach Tube Clamps
Hanger
Welded Seam
Faces Down
Swaged End
Tube Clamp
Radiant Tube
3.0 Installation • Radiant Tube Assembly
IMPORTANT! 150,000 to 200,000 BTU/h models must be
installed with a stainless steel tube clamp (P/N: TP-220) located at
the seam between the primary combustion chamber and the
second tube section downstream of the burner control box.
NOTE: If the tube clamp comes
apart, the spacer
must be
re-assembled with the spacer’s
concave surface facing against
the radiant tube surface.
Concave surface
1
2