Empire Comfort Systems DVLXG75BP90N-1 Installer's Manual page 40

MINIMUM DUCTING REQUIREMENTS
The minimum ducting requirements for the fireplace to operate
correctly are as follows:
Setup Style 1 using 6" duct outlets (minimum of 3 outlets):
6" Flexible Ducting
MINIMUM 3 OUTLETS
Setup Style 2 using 10" duct outlets (minimum of 1 outlet):
10" Duct Outlet
MINIMUM 1 OUTLET
• Due to sharp edges, always use gloves when handling
the flex vent/duct components.
• Always follow the duct venting requirements to
establish blower location, vent lengths, outlet
locations, and return air obligations.
• Always stretch, cut to length, and secure venting with
metal strapping and use horizontal supports to ensure
horizontal runs do not sag.
• Vent connections should overlap a minimum of 1 inch
for proper sealing.
• Minimum outlet requirements are based on either one
Ø10" (78.54in²) or three Ø6" (84.81in²) registers with
maximum restriction of 10% (10" = 7.85in² or 3 x 6" =
8.481in² ). Additional restriction on a minimum set-up
will cause improper operation of the fireplace.
• Do not use force when installing the ducting. Always
stretch venting out first, then cut off excessive duct
material prior to sliding the blower termination into
the ducting.
• A minimun of 1 inch clearance to be maintained
around ALL duct outlets.
40
DUCT VENT INSTALLATION
6" Duct Outlet
10" Flexible Ducting
FAN
10" To 6" - 3 way splitter
FIREPLACE
10" FLexible Ducting
FAN
FIREPLACE
CAUTION
DUCT BLOWER ORIENTATION
The blower for the ducting system can be installed in either a
vertical or horizontal position.
Horizontal Installation:
Using the hanging plate and springs provided, suspend the fan,
allowing the full weight of the fan to be distributed between the
two springs.
When attaching the vent ducting to the fan, ensure a minimum
of 1 inch overlap for proper sealing. With horizontal positioning,
the ducting must be fully supported to avoid sagging.
Metal
Strapping
Horizontal Venting
Supports
Supporting methods for horizontal ducting.
WARNING PINCH POINT
HORIZONTAL SUPPORT
MAX 6ft Spacing
INSULATION AS SUPPORT
Fix horizontally using plate
and 2 springs provided
DUCT STRAP