Trane Gas Unit Heaters メンテナンスマニュアル

ページ / 43
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 
, 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 which connect the power 
venter stack to the power venter housing.
4. Rotate the power venter housing 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