Trane Gas Unit Heaters Wartungshandbuch

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GLND-SVX01B-EN
11 
Installation: Mechanical
When the unit is equipped with an automatic gas ignition 
system, the duct furnaces must be installed such that the 
gas ignition control system is not directly exposed to water 
spray, rain, or dripping water.
Note: Location of duct furnaces is related directly to the 
selection of sizes. Basic rules are as follows:
Aircraft Hangers. 
Duct furnaces must be installed in 
aircraft hangars and public garages as follows: in aircraft 
hangars, duct furnaces must be at least 10 feet (3.0 m) 
above the upper surface of wings or engine enclosures of 
the highest aircraft to be stored in the hangar, and 8 feet 
(2.4  m) above the floor in shops, offices and other sections 
of the hangar where aircraft are not stored or housed. 
Refer to current ANSI/NFPA No. 409, Aircraft Hangars. In 
Canada, installation is suitable in aircraft hangars when 
acceptable to the enforcing authorities.
Public Garages. 
In repair garages, duct furnaces must 
be installed in a detached building or room separate from 
repair areas as specified in the latest edition of NFPA 88B, 
Repair Garages.
In parking structures, duct furnaces must be installed so 
that the burner flames are located a minimum of 18  inches 
(457 mm) above the floor or protected by a partition not 
less than 18 inches (457 mm) high. Refer to the latest 
edition of NFPA 88A, Parking Structures.
In Canada, installation must be in accordance with the 
latest edition of CSA B149 “Installation Codes for Gas 
Burning Appliances and Equipment.”
NOTICE: 
Equipment Damage!
Do not install duct furnaces in corrosive or flammable 
atmospheres! Premature failure of, or severe damage to 
the unit could result! Avoid locations where extreme 
drafts can affect burner operation. Duct furnaces must 
not be installed in locations where air for combustion 
would contain chlorinated, halogenated or acidic 
vapors. If located in such an environment, premature 
failure of the unit could occur!
NOTICE: 
Maintain Minimum Thermostat Setting!
Duct furnaces should not be installed to maintain low 
temperatures and/or freeze protection of buildings. A 
minimum of 50°F (10°C) thermostat setting must be 
maintained. If duct furnaces are operated to maintain 
lower than 50°F (10°C), hot flue gases are cooled inside 
the heat exchanger to a point where water vapor (a flue 
gas by-product) condenses onto the heat exchanger 
walls. The result is a mildly corrosive acid that 
prematurely corrodes the aluminized heat exchanger 
and can actually drip water down from the duct furnace 
onto the floor surface. Additional duct furnaces should 
be installed if a minimum 50°F (10°C) thermostat 
setting cannot be maintained. Failure to follow these 
recommendations could result in equipment or 
property damage.
WARNING
Overheating or Flooding Could Cause Fire 
or Explosion!
Overheating or flooding (where any part of the duct 
furnace has been under water) could result in fire or 
explosion. Should overheating occur, or the gas supply 
fails to shut off, shut off the manual gas valve to the 
duct furnace before shutting off the electrical supply. 
Do not use the duct furnace if any part has been under 
water. Immediately call a qualified service technician to 
inspect the duct furnace and replace any gas control 
which has been underwater. Failure to follow these 
recommendations could result in death or serious 
injury.
WARNING
Hazardous Gases and Flammable Vapors!
Exposure to hazardous gases from fuel substances 
have been shown to cause cancer, birth defects or other 
reproductive harm. Improper installation, adjustment, 
alteration, service or use of this product could cause 
flammable mixtures. To avoid hazardous gases and 
flammable vapors follow proper installation and set up 
of this product and all warnings as provided in this 
manual. Failure to follow all instructions could result in 
death or serious injury.