Desa VVDR24 - Manual (Page 6)

www.desatech.com 124183-01B 6
BURNER ORIFICE
LOG NATURAL PROPANE/LP
SIZE IN. NUM. IN. NUM.
VVSR18, FVSR18,
VVDR18, FVDR18
0.120 31 0.073 49
VVSR24, FVSR24
VVDR24, FVDR24
0.129 30 0.086 44
VVDR30, FVDR30 0.1405 28 0.089 43
Model Burner
Description B
tu
/Hr
In
p
u
t
Natural Gas B
tu
/Hr
In
p
u
t
P
ro
p
an
e/
L
P
Gas
Minimum
V
en
t
Opening
VVSR18
FVSR18
18"
Single 50,000 40,000
8" dia.
VVSR24
FVSR24
24"
Single 60,000 50,000
8" dia.
VVDR18
FVDR18
18"
Dual
55,000 45,000 8" dia.
VVDR24
FVDR24
24"
Dual
65,000 55,000 8" dia.
VVDR30
FVDR30
30"
Dual
70,000 60,000 8" dia.
*Add 6" if safety valve/pilot is used
**At depth indicated
FUEL INLET PRESSURE
SPECIFICATIONS (W.C.)
Min. Max.
NG 5.5" 10.5"
LP 11" 13"
Figure 2 - Technical Information Charts
MINIMUM FIREBOX SIZES
Models: VVSR18, FVSR18, VVDR18, FVDR18
Front Width* Back Width** Depth Height
28" 16" 14" 18"
Models: VVSR24, FVSR24, VVDR24, FVDR24
Front Width* Back Width** Depth Height
29 3 /
4
" 17" 15 1 /
2
" 18"
Models: VVDR30, FVDR30
Front Width* Back Width** Depth Height
36" 27" 18" 18"
INSTALLATION
Continued
NOTICE: Installation, service,
and repair of this appliance must
be performed by a qualified in-
staller, service agency, company
or gas supplier experienced with
this type of gas appliance. Only
factory authorized components
listed in these instructions may
be used in accordance with the
manufacturer’s instructions and
all codes and requirements of
the authority having jurisdic-
tion. Any modifications to this
kit, or use of unauthorized
components or accessory items
will void the manufacturer’s
warranty, and may result in a
hazardous condition.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed
only in a solid-fuel burning fireplace with a
working flue and constructed of noncombus-
tible material.
The charts in Figure 2, indicate technical
information regarding the installation of your
gas log set. Please make sure that all of the
specifications shown are applicable before
installation is attempted.
The fireplace must include a working flue and
venting system with the minimum openings
shown in the Figure 2.