Trane Gas Unit Heaters Installation Manual download pdf (Page 11)

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.

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Trane Gas Unit Heaters Installation Manual Page 11

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