20
DX3
Series
Radiant Tube Assembly
To install the radiant tubes:
1
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 page 27 for tube installation sequence. Place the combustion chamber as the first tube
connected to the burner control box. Models 150-200 MBH utilize a titanium combustion chamber with
yellow identification tag.
Figure 3.9
•
Attach Tube Clamps
Hanger
Welded Seam
Faces Down
Swaged End
Tube Clamp
Radiant Tube
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
3.0
Installation
•
Radiant Tube Assembly
Slide tube clamps onto radiant tubes (see figure 3.9)
2
Figure 3.8
•
Attach Hangers
