Trane Gas Unit Heaters Manual de Instalação descarregar pdf (Página 18)

Installation

18 GUNE-SVX001A-EN

pipe conforming with UL S636, local building codes, or

in the absence of local building codes, with current

CSA-B149.1 Installation Codes for Natural Gas Burning

Appliances and Equipment, or CSA-B149.2 Installation

Codes for Propane Gas Burning Appliances and

Equipment.

2. Single wall and double wall venting components

which are UL Listed and approved for Category III

positive pressure venting systems MUST be used.

3. A Breidert Type L or Fields Starkap vent cap must be

supplied by the customer for each power vented unit.

The vent pipe diameter MUST be as specified in

Table 1, p. 8 (“F” Flue Size Diameter). All unit sizes are

factory equipped with the required flue size collar.

4. The vent terminal must be at least 12 inches (305 mm)

from the exterior of the wall that it passes through to

prevent degradation of the building material by flue

gases. Minimum and maximum wall thickness for the

venting system consist of 4-1/4 inches (105 mm) to

8-1/2 inches (216 mm) for 5-inch (127-mm) diameter

vent pipe and 5-3/4 inches (146 mm) to 11-1/2 inches

(292 mm) on 6-inch (152-mm) vent pipe.

5. Through the wall vent for these appliances shall NOT

terminate over public walkways, or over an area where

the condensate or vapor could create a nuisance or

hazard, or could be detrimental to the operation of

regulators, relief valves, or other equipment.

Figure 10, p. 19 and Table 7, p. 17 for vent terminal

height and snow consideration requirements.

6. The vent pipe equivalent length must not exceed

50 feet (15.2 m). Equivalent length is the total length of

straight sections PLUS 10 feet (3.05 m) for each 90°

elbow and 4 feet (1.22 m) for each 45° elbow.

7. Maintain clearance between the vent pipe and

combustible materials in accordance with the vent

pipe manufacturer’s instructions.

8. The vent system must be installed to prevent collection

of condensate. Pitch horizontal portions of vent pipe

downward 1/4 inch per foot (21 mm/m) toward the

outlet for condensate drainage.See Figure 10, p. 19.

9. Horizontal portions of the venting system shall be

supported at maximum intervals of 4 feet (1.2 m) in the

United States, and at minimum intervals of 3 feet (1 m)

in Canada.

10. Insulate single wall vent pipes exposed to cold air or

running through unheated areas.

11. Each unit must have an individual vent pipe and vent

terminal! Each unit MUST NOT be connected to other

vent systems or to a chimney.

WARNING

Risk of Carbon Monoxide Poisoning with

Type B Vent!

Do not use a Type B (double wall) vent internally within

the building on power vented units! Type B vent does

not seal well under positive pressure and could result in

exhaust fume leaks. Failure to follow these instructions

could result in death or serious injury.

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