Technical data
4.4  Baffle Positioning 
Models up to 120 HE 
The  primary  heat  exchanger  baffles  consist  of  one 
heavy baffle  stack (4mm thick) at the bottom,  3  lighter 
baffle  stacks  (3mm  thick)  in  the  middle  and  1  baffle 
plate  (3mm  thick)  at  the  top.  Upon  installation  or  after 
servicing,  ensure  the  baffles  are  in  the  correct  order 
and  correctly  stacked.  To  achieve maximum  efficiency 
push the primary heat exchanger baffles in the direction 
of the arrows as shown. The secondary heat exchanger 
spring  baffles  must  be  fully  inserted  into  the  heat 
exchanger tubes (narrow end first). 
150 HE Models 
The primary heat exchanger baffles consist of two half-
width baffle  stacks  at the  bottom, 3  full-width  baffle 
stacks in the middle and 1 baffle plate at the top. Upon 
installation  or  after  servicing,  ensure  the  baffles  are  in 
the correct order and correctly stacked. 
To achieve maximum efficiency, push the primary heat 
exchanger  baffles  in  the  direction  of  the  arrows  as 
shown.  The  secondary  heat  exchanger  spring  baffles 
must  be  fully  inserted  into  the  heat  exchanger  tubes 
(narrow end first). 
Page 9 










