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24
Figure 18. Venting with Two 90° Elbows - TRH MODELS
Use SL D-Series
components only.
VENTING WITH TWO (2) 90
o
ELBOWS NATURAL GAS
H MAX. = 16 FT (4.8m) V + V
1
+ H MAX. = 40 FT (12.2m)
MODEL R-4500TRH
H (MAX.)
2 FT (610mm)
3 FT (914mm)
4 FT (1.22m)
6 FT (1.86m)
8 FT (2.48m)
16 FT (4.8m)
VENTING WITH TWO (2) 90
o
ELBOWS PROPANE
H MAX. = 16 FT (4.8m) V + V
1
+ H MAX. = 40 FT (12.2m)
MODEL R-3500TRH
V (MIN.)
H (MAX.)
90
o
Elbow on Top
NOT ALLOWED
1 FT (305mm)
2 FT (610mm)
2 FT (610mm)
4 FT (1.22m)
3 FT (914mm)
6 FT (1.86m)
4 FT (1.22m)
8 FT (2.48m)
5 FT (1.52m)
16 FT (4.8m)
MODEL R-4500TRH
H (MAX.)
NOT ALLOWED
2 FT (610mm)
4 FT (1.22m)
6 FT (1.86m)
8 FT (2.48m)
16 FT (4.8m)
MODEL R-3500TRH
V (MIN.)
H (MAX.)
90
o
Elbow on Top
2 FT (610mm)
1 FT (305mm)
3 FT (914mm)
2 FT (610mm)
4 FT (1.22m)
3 FT (914mm)
6 FT (1.86m)
4 FT (1.22m)
8 FT (2.48m)
5 FT (1.52m)
16 FT (4.8m)