Vermont Casting SDDVREB Manuale Utente

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Stardance Direct Vent - Rear Vent Gas Heaters
20012950
Weight: Fully assembled 350 lbs.
Gas Specifications
   
 
 
Max.  Min.
   
 
 
Input  Input
  Model 
Fuel  Gas Control  BTU/h BTU/h
  SDDVR Series 
Nat 
Millivolt 
21,000  15,000
  SDDVR Series 
Prop 
Millivolt 
21,000  16,000
  SDDVRC Series  Nat  Comfort Control  21,000  15,000
  SDDVRC Series  Prop  Comfort Control  21,000  16,000
  Natural 
LP (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” w.c.
Gas Inlet and Manifold Pressures
Air Shutter Setting
Minimum rear injector air inlet openings.
 
Model 
Natural Gas 
LP
  SDDVR/SDDVRC 
1/2” Open 
1/2” Open
The installation 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. (EXCEP-
TION: Do not derate this appliance for altitude. Main-
tain the manifold pressure at 3.5” w.c. for Natural Gas 
and 10” w.c. for Propane.)
High Elevations
Input ratings are shown in BTU per hour and are 
certified without deration for elevations up to 
4,500 feet (1,370m) above sea level.
For elevations above 4,500 feet (1,370m) in USA, 
installations 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 4,500 feet (1,370m).
WARNING:  Improper installation, adjust-
ment, alteration, service or maintenance 
can cause injury or property damage. Refer 
to this manual for correct installation and 
operational procedures. For assistance or 
additional information consult a qualified 
installer, service agency, or the gas supplier.
Horizontal Termination
The vent must rise vertically a minimum of 24” (610mm) 
after the first elbow directly off the back of the unit, 
before the next elbow. The horizontal run may extend 
up to 20’ (6m) and include a vertical rise of up to 40’ 
(12m). (Fig. 7) Horizontal termination must also meet 
the criteria shown in Figures 9 and 10.
•  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° el-
bows may be used (Excluding the first elbow directly 
off the back of the unit.
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
Ve
rtical Run (in feet)
Measured 
after the first elbow
. (T
ransition elbow
)
Horizontal Run (in feet)
21
22
23
24
25
26
27
28
29
30
ST134a
FDV28
Horizontal 
vent run
12/3/99 djt
areas modified
1/11/00  djt
ST134f
Fig. 7   Horizontal vent termination window.
May use up to 
three 90° Elbows
(Excluding elbow 
directly off back 
of unit.)
* Not the transition elbow.
One 90° 
Elbow*
Unacceptable 
Venting Configuration
Unacceptable 
Venting Configuration