Trane Gas Unit Heaters Installation Manual download pdf (Page 20)

Installation: Piping

20 GLND-SVX01B-EN

The vent terminal must be installed with a minimum

clearance of four feet (1.2 m) from electric meters, gas

meters, regulators and relief equipment.

Seal ALL vent pipe joints and seams to prevent leakage.

Use General Electric RTV-108 or Dow Corning

RTV-732

silicone sealant or 3M #425 aluminum foil tape or

equivalent.

The vent system must be installed to prevent collection of

condensate. Vertical vent pipes should be equipped with

condensate drains. Pitch horizontal pipes downward 1/4

inch per foot (21 mm per m) toward outlet for condensate

drainage.

Horizontal portions of the venting system shall be

supported at maximum intervals of four feet (1.2 m) to

prevent sagging (in Canada, support at three feet (1 m)

minimum intervals).

Insulate single wall vent pipe exposed to cold air or

running through unheated areas.

Units are shipped from the factory set up for vertical

venting. To convert the power venter for horizontal

venting, remove the shipping support bracket; refer to

Figure 11, p. 20 and Figure 23, p. 35, and follow this

procedure:

1. Hold power venter motor in position.

2. Remove the three Phillips-head screws from the motor

adaptor plate.

3. Remove the three screws whic

h connect the power

venter stack to the power venter housing.

4. Rotate the power venter hou

sing to the horizontal

position.

5. Replace screws accordingly.

Note: The motor, pressure switch, and junction box

bracket MUST remain located as shipped from the

factory for safe operation. Rotate only the blower

housing! If the power venter housing is to be

moved to the right horizontal position, the junction

box must be rotated 90 degrees CCW to clear the

connection. To do this, remove all wires, conduit

and conduit connector from the junction box,

noting location of wires. Move box, using holes

provided. Move

7/8-inch plug from bottom of box to side.

Reconnect all wires according to the unit’s wiring

diagram.

WARNING

Carbon Monoxide!

Never operate duct furnaces without combustion air

and flue gas piping in place. Each unit MUST have its

own combustion air system and MUST NOT be

connected to other vent systems or to a chimney. Your

venting system must not be blocked by any snow, snow

drifts, or any foreign matter. Inspect your venting

system to ensure adequate ventilation exists at all

times! Failure to follow these recommendations could

result in death or serious injury.

Figure 11. (Optional) Top vent position

Table 7. Vent systems—termination clearance

requirements

(a)

(a) If the vent terminal is to be installed near ground level, the vent terminal

must be positioned at least six inches above the maximum anticipated

snow depth (see following for Canadian requirements).

Structure

Minimum for

Termination Locations

Door, window or any gravity air inlet 4 feet below

4 feet horizontally

1 foot above

Forced air inlet within 10 ft. 3 feet above

Adjoining building or parapet 6 feet

Adjacent public walkways 7 feet above grade

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Trane Gas Unit Heaters Installation Manual Page 20

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