Vermont Castings SDDVTBDSB, Installation & Operating Manual, Page: 8 / 64

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3-90-20306760 Vermont Castings • Stardance SDDVTSB Installation Manual_R10 • 04/18
Horizontal Termination
The vent must rise vertically a minimum of 24" (610 mm) off
the top of the unit, before the first elbow. The horizontal run
may extend up to 20’ (6m) and include a vertical rise of up to
40’ (12 m). (Figure 7) Horizontal termination must also meet
the criteria shown in Figures 10 through 12.
• Approved vent systems must terminate above and
including the heavy line in Figure 7.
• Two 45° elbows may be substituted for each single 90°
elbow.
• With a rise between 2’ – 5’, one 90° or two 45° elbows
may be used.
Gas Specifications
Model Fuel Control
Max.
Input
BTU/h
Min. Input
BTU/h
SDDVT Nat.
Millivolt
Manual
28,000 20,000
SDDVT LP
Millivolt
Manual
25,000 21,000
SDVTSC Nat.
Signature
Command
28,000 20,000
SDVTSC LP
Signature
Command
25,000 21,000
Gas Inlet and Manifold Pressures
Natural Liquid Propane
Inlet Minimum 5.5" w.c. 11.0" w.c.
Inlet Maximum 14.0" w.c. 14.0" w.c.
Manifold Pressure 3.5" w.c. 10.0" w.c.
Air Shutter Setting 1/2" open 1/2” open
The installation of your Vermont Castings stove must
conform with local codes, or in the absence of local
codes, with the National Fuel Gas Code ANSI Z223.1/
NFPA 54 - latest edition, or CSA B149.1 Installation
code. (EXCEPTION: Do not derate this appliance
for altitude up to 2,000 (610 m) for natural gas and
4,500 feet (1,370 m) for LP Gas. Maintain the manifold
pressure at 3.5" w.c. for Natural Gas and 10.0" w.c.
for LP Gas.
HIGH ELEVATIONS
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to 2,000
feet (610 m) for natural gas and 4,500 feet (1,370 m)
for LP gas above sea level.
In the USA installations with elevations above 2,000
feet (610 m) for natural gas and 4,500 feet (1,370 m) for
LP gas must be in accordance with the current ANSI
Z223.1/NFPA 54 and/or local codes having jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 2,000 feet (610 m) for natural gas
and 4,500 feet (1,370 m) for LP gas.
WARNING
!
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. Refer
to this manual for correct installation and operational pro-
cedures. For assistance or additional information consult
a qualified installer, service agency, or the gas supplier.
Figure 7 - Horizontal vent termination window.
20
19
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Vertical Run (in feet)
(Measured from the appliance flue collar to the top of the vent pipe.)
Horizontal Run (in feet)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
ST134a
FDV28
Horizontal
vent run
12/3/99 djt
areas modified
1/11/00 djt
May use up to
three 90° Elbows
One 90°
Elbow
Unacceptable
Venting Configuration
No Restrictor Plate
Required