10
SST Extreme X & SST Extreme S MODULATING I&O Manual
RD: JAN 2022
RL: 1A
3. TURBULATOR LENGTHS & LOCATION IN SYSTEM
NOTE:
Improper location of a turbulator can cause malfunction of the heater, property
damage, and will void the heater warranty.
Tubes with turbulators inside are clearly labeled for easy identification.
ALL turbulators are located within the BASE LENGTH (shortest length) of the tube sys-
tem. One or two tubes added to system base length are regular empty tubes with no turbulators.
Each turbulator is 36 inches in length by
2.25”
width (see Table below).
Turbulators link together with tabs, and individual sections can be removed by straightening tabs (see
below). A Base Tube Kit may need turbulator removal depending on input rate (see below and illustra-
tion next page).
The orientation of the turbulator(s) (up
-
down; sideways) in the tube does not matter.
TURBULATOR SECTION REMOVAL
1.Carefully pull out the turbulator section to
be removed from the swaged end of the
tube. The end of the turbulator to be left in-
side the tube should not extend beyond the
swaged portion of the tube. Rotate the tube
to have access to the locking tab
3. Lift up the end of the turbulator
that is left inside the tube to dis-
engage the tab that was bent in
the vertical position
2. Bend and push the outer tab
with pliers until it is in the vertical
position
4. While still holding the inner turbulator
in its location, pull the outer turbulator
to completely disengage and discard
