Installation
12
GUNE-SVX001A-EN
Suspension
Important:
Minimum safety clearances must also be
maintained; see
. When
service/accessibility clearances are greater
than minimum safety clearances, service/
accessibility clearances take precedence.
Refer to
Conversion of access side
The tubular duct furnace is built and shipped as right side
access—when looking in the direction of airflow, gas and
flue connections, control cabinet access are on the right
hand side and the combustion air inlet is on top. When
looking in the direction of airflow, you will be facing the
entering air side of the duct furnace. To convert the unit to
left side access:
1.
Before suspending unit, flip the duct furnace 180°
width-wise (not rotated) so the gas and flue
connections are still on the entering air side of the duct
furnace.
2. Remove the four (4) screws holding the combustion air
inlet screen (now located on the bottom of the unit); the
screen and gasket can be removed and set aside.
3. Remove the four (4) screws holding the block-off plate
(now located on the top of the unit); the plate and the
gasket can be removed and set aside.
4. Reinstall the block-off plate and its gasket on the
bottom of the unit using the four (4) screws.
5. Reinstall the combustion air inlet screen and its gasket
on the top of the unit using the four (4) screws.
It is not required to switch the combustion air inlet screen
and block-off plate locations once the unit has been
flipped. However, due to combustion noise, it is
recommended to keep the air inlet screen on top for
overhead installations.
Important:
If unit access side is converted, ensure
accessibility clearance is taken into account
for the new control cabinet end of the unit
before suspension/installation.
Figure 7.
Typical suspension
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)
WARNING
Heavy Object!
Make certain that the lifting methods used to lift the
duct furnace are capable of supporting the weight of
the heater during installation. See
for unit
weights.
Ensure that all hardware used in the suspension of each
duct furnace is more than adequate for the job.
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. Do not allow objects (i.e.
ladder) or people to lean against the gas lines, venting
system, or electrical conduit for support.
Failure to follow these instructions could result in
death, serious injury, and property damage.
NOTICE:
Equipment Damage!
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
for typical suspension. DO NOT mount duct
furnaces in series (one in front of another).
