Use Of Elbows; Measuring Standards - Heat & Glo SL-550TR-E Installation Manual

D. Use of Elbows
Diagonal runs have both vertical and horizontal vent as-
pects when calculating the effects. Use the rise for the
vertical aspect and the run for the horizontal aspect. See
Figure 4.4.
Two 45º elbows may be used in place of one 90º elbow.
On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216
mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A
length of straight pipe is allowed between two 45º elbows.
See Figure 4.4.
Figure 4.5 shows the vertical and horizontal offsets for
DVP or SLP elbows.
VERTICAL
Effective Length
SLP
Pipe
Inches Millimeters
SLP4 4 102
SLP6 6 152
SLP12 12 305
SLP24 24 610
SLP36 36 914
SLP48 48 1219
SLP6A 3 to 6 76 to 152
SLP12A 3 to 12 76 to 305
Effective Length
DVP
Pipe
Inches Millimeters
DVP4 4 102
DVP6 6 152
DVP12 12 305
DVP24 24 610
DVP36 36 914
DVP48 48 1219
DVP6A 3 to 6 76 to 152
DVP12A 3 to 12 76 to 305
Figure 4.4
Heat & Glo • SL-550/750TR-E, SL-550/750/950TR-IPI-E Installation Manual • 2118-910 Rev. C • 4/16
18
RUN
HORIZONTAL
Rise/Run
Inches Millimeters
2-3/4 70
4-1/4 108
8-1/2 216
17 432
25-1/2 648
34 864
2-1/8-4-1/4 54-108
2-1/8-8-1/2 54-216
Rise/Run
Inches Millimeters
2-3/4 70
4-1/4 108
8-1/2 216
17 432
25-1/2 648
34 864
2-1/8-4-1/4 54-108
2-1/8-8-1/2 54-216
X
X
Vent
Type
Inches Millimeters
DVP 4-1/2
SLP 5
X
Vent Type
DVP
SLP
Figure 4.5 Vertical and Horizontal Offset for DVP and SLP Elbows
E. Measuring Standards
Vertical and horizontal measurements listed in the vent
diagrams were made using the following standards:
• Pipe measurements are shown using the effective length
of pipe. See Section 12.A (Figure 12.1 for DVP, Figure
12.8 for SLP) for information on effective length of pipe
components.
• Horizontal terminations are measured to the outside
mounting surface (fl ange of termination cap) (see Figure
4.3).
• Vertical terminations are measured to bottom of
termination cap.
• Horizontal pipe installed level with no rise.
Y
Y
Inches Millimeters
114 17 432
127 11-3/4 298
X
X
Inches Millimeters
16-1/4 413
11-1/4 286