Trane Horizon OABE/F Installation, Operation And Maintenance Manual page 43

3. Horizontal runs must not exceed 75 percent of the
vertical height of the vent pipe, up to a maximum of
10 ft (3 m). Horizontal runs should be pitched upward
1/4 in./ft (21 mm/m) and should be supported at 3-ft
(1-m) maximum intervals.
4. Design vent pipe runs to minimize the use of elbows.
Each 90° elbow is equivalent to 5 ft (1.5 m) of straight
vent pipe.
5. Vent pipe should not be run through unheated spaces.
If such runs cannot be avoided, insulate the vent pipe
to prevent condensation. Insulation should be a
minimum of 1/2 in. (12.7 mm) thick foil faced fiberglass
minimum of 1-1/2# density.
6. Dampers must not be used in vent piping runs, as
spillage of flue gases into the occupied space could
result.
7. Vent connectors serving Category 1 heaters must not
be connected into any portion of a mechanical draft
system operating under positive pressure.
National Fuel Gas Code venting pipe requirement
Input ratings
Btu/h W
75000–149999 21980–43959
150000–399999 43960–117227
400000–500000 117228–146535
500001–600000 146536–175843
Note: Installers should follow both National Fuel Gas Code and local codes.
Figure 55. Vertical venting—Category I
6 ft Min. 6 Ft Min
(1.8m)
(1.8 m Min.)
10 in. Max.
10 In Max (245mm)
2 ft Min.
(245 mm Max.)
2 Ft Min
(0.61 m Min.)
(0.61m)
5 ft Min.
5 Ft Min
(1.52 m Min.) (1.52m)
Adjacent
Adjacent
Building
Building
Horizontally Vented Furnaces—Category III (Refer
to Figure 56)
Pressures in Category III venting systems are positive and
therefore care must be taken to prevent flue products from
entering the heated space. Use only venting materials
and components that are UL-listed and approved for
Category III venting systems.
OAU-SVX004D-EN
Diameter pipe to use
in. mm
5 126
6 152
7 178
8 203
Approved Vent Cap
Approved Vent Cap
Type B Vent Pipe Type B Vent Pipe
Clearance specified on Vent Pipe Clearance specified on Vent Pipe
Thimble
Thimble
1 ft (305 mm)
1 Ft (305mm)
10 Ft Min
10 ft Min.
(3.05m)
(3.05 m Min.)
Heating Appliance
Heating Appliance
Proper Vent Pipe Required!
Failure to follow instructions could result in death,
serious injury, and property damage. Never use a pipe
of a diameter other than specified! Never use PVC, ABS,
or any other non-metallic pipe for venting!
Tuyau de ventilation approprié requis !
Le non-respect de ces instructions peut causer le décès,
des blessures graves ou des dégâts matériels. N'utilisez
jamais un tuyau d'un diamètre autre que celui indiqué !
N'utilisez jamais de tuyau en PVC, ABS ou d'autre tuyau
non métallique pour la ventilation !
Carbon Monoxide!
Failure to follow these instructions could result in
Carbon Monoxide Poisoning (symptoms include
grogginess, lethargy, inappropriate tiredness, or flu-like
symptoms) which could result in death or serious
injury. Never operate a unit without combustion air and
flue gas piping in place. Each unit MUST have an
individual vent pipe! Each unit 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!
Monoxyde de carbone !
Roof
Le non-respect de ces instructions peut résulter en un
empoisonnement au monoxyde de carbone (parmi les
symptômes figurent des étourdissement, une léthargie,
une fatigue inhabituelle ou des symptômes grippaux)
qui peut entraîner le décès ou des blessures graves. Ne
faites jamais fonctionner une unité en l'absence d'une
tuyauterie d'air de combustion et de conduits de
fumée. Chaque unité doit IMPÉRATIVEMENT être
équipée d'un tuyau de ventilation qui lui est propre !
Chaque unité NE DOIT PAS être raccordée à d'autres
systèmes de ventilation ou à une cheminée. Notre
système de ventilation ne doit pas être bloqué par de la
neige, des congères ou tout autre corps étranger.
Inspectez votre système de ventilation pour garantir
que la ventilation est appropriée en tout temps !
All vent pipe joints must be sealed to prevent leakage.
Follow the instructions provided with the approved
venting materials. Vent pipe shall be sized as follows:
Installation
WARNING
AVERTISSEMENT
WARNING
AVERTISSEMENT
43