Space-Ray ADU25 Installation And Operation Instruction Manual page 29

I. Assemble the turbulators together by interlocking the slotted ends.
II. Slide these into the tubes at the U-bend as shown for U-Models.
III. Align the turbulator end flush with end of tube.
Note: Refer to the table below for the number of turbulators required for each heater model.
Table 13.
MODEL
ADU 25
ADU 30
ADU 35
ADU 40
ADU 45
Fig. 21h
8. Attach U-Bend as described below.
ADU 25 U-Bend (76.2mm Tubes)
I. Assemble the U-Bend to the tubes with the two (2) threaded holes facing downwards, ensuring that the
tubes engage fully.
II. Using two (2) 5/16" BSW hexagon socket setscrews (from fastening pack) secure the U-Bend to the radiant
tubes.
ADU 30/35/40/45 U-Bend (101.6mm Tubes)
I. Assemble the U-Bend to the tubes, ensuring that the tubes engage fully.
II. Drill one Ø 5.5mm hole through the U-Bend and radiant tube in the lower surface of each leg at a distance
midway along the swaged portion of the U-Bend.
III. Rivet the U-Bend to the radiant tubes using the two Ø 5 x 10 rivets provided (from fastening pack).
Turbulator Sections
65mm x 572mm
90mm x 610mm
90mm x 610mm
90mm x 610mm
90mm x 610mm
-28-
Burner Leg Fan Leg
2
3
3
4
4
2
7
1
4
1
Form #44201100
Oct 2019