ITH-Series Technical Manual
Page 13
Cambridge
Engineering
Inc.
Installation
T
UBE
I
NSTALLATION
Always use all the hangers supplied. As a rule the combustion tube (first tube) utilizes 2 hangers
and thereafter 1 hanger per 10' section.
It is required that the first hanging point be 2
"
to 8
"
from the burner mounting flange, and tube weld seam must face down
, refer to Figure 7 for
more details.
Figure 7: Installation of First section of Flanged Tube
For all remaining tubes, fit the end of the tube with a coupling (Figure 8), (the coupling should be
loose).
Figure 8: Installation of Heat Exchanger Tube and Coupling
Tube
Coupling
(loosely fitted)
Heat
Exchanger
Tube
10'
Tube Weld
Seam Facing
Down
8' - 9'
Tube & Reflector
Hangers
Combustion
Tube
Coupling Should Be
Loosely Fitted
Locate Tube and
Reflector Hangers
every 10' thereafter.
10'
Tube
Flange
2"-8"
10'
Install "J" Bolt
at first hanger
Tube Weld
Seam Facing
Down
