T-H3 Installation Manual

28 Page
Installaon Manual
Installaon
-Clearances for rooop terminaons-
Follow all local and national codes in regards to proper termination clearances. In the absence
of such codes, the clearances below must be met. Local codes supersede these clearances.
Failure to observe this warning may result in severe personal injury or death.
WARNING
 Exhaust terminations must be at least 1 ft (305 mm) away from any obstructions.
 Minimum spacing between multiple terminals:
 intake terminals: 1 ft (305 mm) spacing between each
 exhaust terminals: 1 ft (305 mm) spacing between each
 The exhaust termination must be a horizontal distance of at least 2 ft (610 mm) from a
wall or surface unless specified differently by local code.
 Failure to observe this warning may result in severe personal injury or death.
WARNING
3 ft (914 mm) min.
Exhaust gas
Intake air
1 ft
(305 mm) min.
1 ft
(305 mm) min.
Anticipated
snow level
Flat roof termination
Exhaust
gas
2 ft (610 mm) min.
Intake air
1 ft
(305 mm) min.
1 ft
(305 mm) min.
1 ft
(305 mm) min.
Anticipated
snow level
Angled roof termination
Vercal wall
Ancipated snow level
1 
(305 mm)
min.
1 
(305 mm)
min.
2 
(610 mm)
min.
2 
(610 mm)
min.
1 
(305 mm)
min.
1 
(305 mm)
min.
1 
(305 mm)
min.
1 
(305 mm)
min.
3  (914 mm) min.
Exhaust gas
Exhaust gas
Intake air
Intake air
Multiple flat roof terminations
Exhaust gas
Exhaust
gas
Intake air
Intake air
1 
(305 mm)
min.
1 
(305 mm)
min.
1 
(305 mm)
min.
1 
(305 mm)
min.
2  (610 mm) min.
Ancipated snow level
1 
(305 mm)
min.
3  (914 mm) min.
Multiple angled roof terminations
Canadian requirements differ from the guidelines in this section. In Canada, follow
the requirements of B149.1 (Natural Gas and Propane Installation Code, current
edition) as well as local and provincial codes. Contact your local code enforcement
agency for direction.
NOTICE