Desa BVDR24 ユーザーズマニュアル

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901746-01E
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Figure 3 - Attaching Damper Clamp
Damper
Damper 
Clamp
Damper
Manufactured Fireplace
Masonry Fireplace
Damper 
Clamp
Damper
INSTALLATION
Continued
Figure 2 - Technical Information Charts
MINIMUM FIREBOX SIZES
MODEL
FRONT
WIDTH*
BACK
WIDTH**
DEPTH
HEIGHT
18SR/DR
28"
16"
14"
18"
24SR/DR
29 
3
/
4
"
17"
15 
1
/
2
"
18"
30DR
36"
27"
18"
18"
* Add 6" if safety valve/pilot is used.
**At depth indicated.
MODEL
DESCRIPTION
Btu/Hr Input 
Natural Gas
Btu/Hr Input  
Propane/LP Gas
Minimum 
vent Opening
BVSR18
18" Single Burner
50,000
40,000
8" dia.
BVSR24
24" Single Burner
60,000
50,000
8" dia.
BVDR18
18" Dual Burner
55,000
45,000
8" dia.
BVDR24
24" Dual Burner
65,000
55,000
8" dia.
BVDR30
30" Dual Burner
70,000
60,000
8" dia.
FUEL INLET PRESSURE 
SPECIFICATIONS (W.C.)
Min.
Max.
NG
5.5"
10.5"
LP
11"
13"
BURNER ORIFICE
LOG SIZE
Natural
Propane/LP
In.
Num.
In.
Num.
18SR/DR
0.120
31
0.073
49
24SR/DR
0.129
30
0.086
44
CHECk GAS TYPE
Use only natural gas. If your gas supply is not 
natural gas, you must install ON/OFF Safety 
Valve/Pilot  Kit  (see Accessories,  page  19). 
Call dealer where you bought your log set. 
If the fireplace does not have a gas supply 
shutoff valve, one must be installed.
VENTING SPECIFICATIONS FOR 
INSTALLATION
Fireplace chimney flue and vent must be draft-
ing properly. To check vent for proper drafting: 
Light a tightly rolled newspaper on one end 
and  place  at  inside  front  edge  of  fireplace. 
Observe smoke and be sure vent is properly 
drawing it up the chimney. If smoke spills out 
into room, extinguish flame and remove any 
obstruction until proper venting is achieved.
Chimney flue damper must be fixed open to 
provide  a  minimum  of  64  sq.  in.  of  free  air 
opening  during  operation  of  this  log  set. A 
multipurpose damper clamp is provided to fix 
the damper in position.
INSTALLING DAMPER CLAMP
Secure  damper  stop  clamp  provided  to 
leading edge of damper as shown in Figure 
3. If for any reason this clamp doesn't work 
on your fireplace, another suitable clamp or 
permanent stop must be installed, or damper 
blade must be cut or removed.