Trane Gas Unit Heaters Wartungshandbuch
Installation: Mechanical
12
GLND-SVX01B-EN
Clearances
Maintain adequate clearances around air openings into
combustion chamber:
combustion chamber:
Accessibility
If the unit is a bottom service access type, allow a
minimum of 21 inches (533 mm) at the bottom of the unit
to facilitate servicing the burners and pilot, or six inches
(152 mm) if the unit has a side access burner drawer.
Provision should also be made to assure accessibility for
recurrent maintenance purposes.
minimum of 21 inches (533 mm) at the bottom of the unit
to facilitate servicing the burners and pilot, or six inches
(152 mm) if the unit has a side access burner drawer.
Provision should also be made to assure accessibility for
recurrent maintenance purposes.
Drafts
Avoid installing the duct furnace in an extremely drafty
location. Strong drafts may cause pilot outage. Units with
intermittent pilot ignition may be preferable in areas
where drafts cannot be avoided.
location. Strong drafts may cause pilot outage. Units with
intermittent pilot ignition may be preferable in areas
where drafts cannot be avoided.
Atmospheres containing commercial solvents or
chlorinated hydrocarbons will produce corrosive acids
when coming in contact with the flames. This will greatly
reduce the life of the gas duct furnace and may void the
warranty. Avoid such areas.
chlorinated hydrocarbons will produce corrosive acids
when coming in contact with the flames. This will greatly
reduce the life of the gas duct furnace and may void the
warranty. Avoid such areas.
The duct furnace must be installed on the positive
pressure side of the air circulation blower.
pressure side of the air circulation blower.
Ductwork
Properly designed and installed ductwork, providing a
uniformly distributed flow of air across the surfaces of the
heat exchanger, is essential to satisfactory unit
performance and life of the equipment.
uniformly distributed flow of air across the surfaces of the
heat exchanger, is essential to satisfactory unit
performance and life of the equipment.
All duct connection flanges/seams must be sealed to
prevent air leaks. Sealant/tape must be suitable for
temperatures 250°F (121°C) minimum.
prevent air leaks. Sealant/tape must be suitable for
temperatures 250°F (121°C) minimum.
If uniform air distribution is not obtained, install additional
baffles and/or turning vanes in the ductwork.
baffles and/or turning vanes in the ductwork.
and
illustrate recommended ductwork
designs for both the straight-through and elbowed air inlet
arrangements.
arrangements.
WARNING
Combustible Materials!
Maintain proper clearance between the unit heat
exchanger, vent surfaces, and combustible materials.
Refer to unit nameplate and installation instructions for
proper clearances. Improper clearances could result in a
fire hazard. Failure to maintain proper clearances could
result in death or serious injury or property damage.
exchanger, vent surfaces, and combustible materials.
Refer to unit nameplate and installation instructions for
proper clearances. Improper clearances could result in a
fire hazard. Failure to maintain proper clearances could
result in death or serious injury or property damage.
Table 3.
Minimum clearances
Sides
6” (152 mm)
Top
6” (152 mm)
Bottom
6” (152 mm)
Flue
6” (152 mm)
Note:
When the clearances required for accessibility are greater than the
minimum required safety clearances, the accessibility clearances
take precedence.
WARNING
Fire Hazard!
If the gas duct furnace is to be used in a building
classified as having a hazardous atmosphere, the
installation must comply with the standards set by the
National Board of Fire Underwriters. Consult the
authorities having jurisdiction before starting the job.
Failure to follow recommendations could result in
death or serious injury.
classified as having a hazardous atmosphere, the
installation must comply with the standards set by the
National Board of Fire Underwriters. Consult the
authorities having jurisdiction before starting the job.
Failure to follow recommendations could result in
death or serious injury.
NOTICE:
Use 90° Duct Connection Flanges!
Ducts must be properly connected to duct furnaces for
operation. Do not straighten the 90° duct connection
flanges on the duct furnaces. Straightening the 90° duct
connection flanges will affect the operation of the
furnace and will void the warranty.
operation. Do not straighten the 90° duct connection
flanges on the duct furnaces. Straightening the 90° duct
connection flanges will affect the operation of the
furnace and will void the warranty.
Figure 7.
Recommended design for field installation of
ductwork for straight-through arrangement
ductwork for straight-through arrangement