Trane Horizon OABD Series Installation, Operation And Maintenance Manual page 83

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 138. 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
(1.52m)
(1.52 m Min.)
Adjacent Adjacent
Building
Building
Horizontally Vented Furnaces—Category III (Refer
to Figure 139)
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-SVX007A-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!
Roof
Monoxyde de carbone!
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!
WARNING
AVERTISSEMENT
WARNING
AVERTISSEMENT
Installation
83