Carrier 59SP6A Installation, Start-Up, Operating, Service And Maintenance Instructions page 38

59SP6A: Installation, Start-up, Operating, Service and Maintenance Instructions
¾ in. (222mm) for 3 in. (76mm)
¾ in. (172mm) for 2 in. (51mm)
Fig. 41 – Combustion Air and Vent Pipe Termination for Direct Vent (2-Pipe) System
Fig. 42 – Vent Pipe Termination for Non-Direct Vent and Ventilated Combustion Air System
Vent and Combustion
Air Pipe Diameters 1 1/2-in. (38 mm)
1 1/2-in. (38 mm)
2-in. (51 mm)
2 1/2-in. (64 mm)
3-in. (76-mm)
4-in. (102 mm)
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Roof Termination (Preferred)
Maintain 12 in (305mm) .
minimum clearance
above highest anticipated
snow level maximum of
24 in. (610mm) above roof .
90°
Side wall termination
with 2 elbows (preferred)
Table 12 – Vent Termination Kit for Direct Vent (2-pipe) Systems
Approved Two-Pipe Termination Fittings
2-in. (51 mm)
No Yes
No Yes
No No
No No
No No
12 in. (305mm) min. separation
between bottom of combustion
air and bottom of vent (Typ.)
Vent
Abandoned masonry
used as raceway
(per code)
6 in. (152mm) minimum clearance
between wall and end of vent pipe.
10 in. (254mm) maximum pipe lengt h
12 in. (305 mm) min. from
overhang or roof
Maintain 12 in. (305mm)
minimum clearance
above highest anticipated
snow level or grade
whichever is greater.
2 1/2-in. (64 mm) 3-in. (76-mm)
No No
No No
No Yes
No Yes
No Yes
38
12 in. min. (305 mm)from
overhang or roof
Maintain 12 in. (305mm)
minimum clearance
above highest anticipated
snow level or grade
whichever is greater
Sidewall Termination
with Straight Pipe (preferred)
Allowable Concentric
4-in. (102 mm) Vent Kit
No 2-in. (51 mm)
No 2-in. (51 mm)
2-in. (51 mm)
No
3-in. (76 mm)
No 3-in. (76 mm)
Yes 3-in. (76 mm)
A13305
A05091