Hearth and Home Technologies Heatilator GDST5244I - Manual (Page 23)

Heatilator • GDST5244I • 4045-127 • Rev W • 11/08 23
H
1
V
1
To replace the fi rst starter elbow with two 45° elbows,
refer to Figure 7.4. All other 90° elbows can be replaced
with two 45° elbows.
General Rules:
• SUBTRACT 3 ft. from the total H measurement for each
90° elbow installed horizontally.
• SUBTRACT 1-1/2 ft. from the total H measurement for
each 45° elbow installed horizontally.
• A maximum of three 90° elbows (or six 45° elbows)
may be used in any vent confi guration. Some elbows
may be installed horizontally. See Figure 7.9.
• Elbows may be placed back to back anywhere in the
system as long as the fi rst 90° elbow is a starter elbow
except as shown in Figure 7.4.
• When penetrating a combustible wall, a wall shield
fi restop must be installed.
• When penetrating a combustible ceiling, a ceiling
fi restop must be installed.
• Horizontal runs of vent do not require vertical rise;
horizontal runs may be level.
E. Vent Diagrams
Figure 7.3
One Elbow
1. Top Vent - Horizontal Termination
Note: The GDST5244 series appliances can adapt
to SLP series vent pipe. You must use a DVP-SLP24
adapter which can only be attached to the appliance
starting collar.
When looking at horizontal termination diagrams, the
adapter is not counted as part of the minimum vertical
(V
1
min.) requirements.
Whether horizontal or vertical termination, the adapter is
counted as part of the maximum vertical limitations.
All venting rules for the vent run must still be followed.
H
1
= 11 ft.
max.
V
1
= 1 ft.
DVP-SLP24
H
1
= 11 ft.
max
V
1
= 1 ft.
DVP
HORIZONTAL EXAMPLE
SLP
12 ft (3.66 m) min.
60 ft (18.29 m) max.
12 ft (3.66 m) min.
60 ft (18.29 m) max.
DVP
VERTICAL EXAMPLE
SLP
DVP-SLP24
Adapter
V
1
min. V
1
max. H
1
max.
ft m ft m ft m
1 0.30 - - 32 in. 813 mm
1.5 0.46 - - 18 5.49
2 0.61 - - 25 7.62
- - 25 7.62 25 7.62