Installation (continued) – Sterling TD User Manual
Page 8

8
INSTALLATION (continued)
SUSPENSION
Figure 5 - Typical Suspension
Ensure that all hardware used in
the suspension of each duct furnace is more than 
adequate for the job. Failure to do so may result 
in extensive property damage, personal injury or 
death.
The duct furnace must be hung level
from side to side and front to back, from four 
suspension points provided at the top of the unit. 
Failure to do so will result in poor performance and/
or premature failure of the unit. Refer to Figure 5 for 
typical suspension. DO NOT mount duct furnaces in 
series (one in front of another).
NOTICE: Minimum safety clearances must also be 
maintained; see Table 3. When service/accessibility 
clearances are greater than minimum safety 
clearances, service/accessibility clearances take 
precedence. See “Clearances” section under 
“Installation.”
Make cer tain that the lifting
methods used to lift the duct furnace are capable 
of supporting the weight of the heater during 
installation. Failure to heed this warning may 
result in property damage or personal injury. See 
Table 1 for unit weights.
Make certain that the structure to
which the duct furnace is to be mounted is 
capable of safely supporting its weight. Under 
no circumstances must the gas lines, venting 
system, or the electrical conduit be used 
to support the duct furnace or any other objects 
(i.e. ladder, person) lean against the gas lines, 
venting system, or electrical conduit for support. 
Failure to heed these warnings may result in 
property damage, personal injury, or death.
SECTION A-A
SCALE 1:1
A
A
D9376
AIR
FL
OW
←
3/8" THREADED SUSPENSION ROD
& JAM NUT BY INSTALLER
OUTSIDE JACKET
PANEL (UNIT)
D9376
