Desa VFRMV18PB - Manual (Page 12)

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INSTALLATION
Continued
INSTALLING DAMPER CLAMP
ACCESSORY FOR VENTED
OPERATION
Note: When used as a vented decorative, appliance
must be installed only in a solid-fuel burning
fireplace with a working flue and constructed of
noncombustible material.
If your heater is a non-thermostatically-controlled
model, you may use this heater as a vented product.
There are three reasons for operating your heater
in the vented mode.
1. The fireplace does not meet the clearance
to combustibles requirements for vent-free
operation.
2. State or local codes do not permit vent-free
operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you
must permanently open chimney flue damper. You
must install the damper clamp accessory (to order,
see Accessories, page 26). This will insure vented
operation (see Figure 10). The damper clamp will
keep damper open. Installation instructions are
included with clamp accessory.
Figure 10 - Attaching Damper Clamp
Damper
Damper
Clamp
Damper
Manufactured
Fireplace
Masonry
Fireplace
Damper
Clamp
See chart below for minimum permanent flue
opening you must provide. Attach damper clamp
so the minimum permanent flue opening will be
maintained at all times.
INSTALLING REMOTE CONTROL
ACCESSORY BRACKET
If installing optional remote control accessory you
will need to install the remote accessory bracket
for the receiver.
Use screws provided to attach bracket to valve
bracket as shown in Figure 11.
Follow installation instructions included with
remote accessory.
Area of Various Standard Round Flues
Diameter Area
5"
6"
"
8" 20 sq. inches
29 sq. inches
39 sq. inches
51 sq. inches
Chimney Height Minimum Permanent
Flue Opening
6' to 15'
15' to 30'
39 sq. inches
29 sq. inches
Valve Bracket
Figure 11 - Attaching Remote Bracket to
Valve Bracket
Remote
Bracket
INSTALLING HEATER ASSEMBLY
WARNING: If installing in a
sunken fireplace, special care
is needed. You must raise the
fireplace floor to allow access
to heater control panel. This
will insure adequate air flow and
guard against sooting. Raise
fireplace floor with noncombus-
tible material. Make sure material
is secure.