Outside Air Kit - Superior WRT3920WS Installation And Operation Instructions Manual

Adaptor
Insulated
Flex Pipe
Figure 26
Insulation
Flex 5" Diameter
Aluminum Tape
Figure 27

OUTSIDE AIR KIT

It is mandatory to install an outside air connection to the WRT3920WS
fireplace. The following components are required and are included with
the fireplace:
• Outside air kit (includes 4 inch flex that goes up to ten (10) feet long)
• 4" Adaptor for fireplace connection
Outside Air Installation
The outside air assembly may be installed according to the following
requirements:
A) Duct length should be kept to a minimum. The maximum length of a
4" interior diameter (100 mm) insulated flexible duct is 20 feet (6.1 m).
The duct can be extended to a maximum of 40 feet (12 m) using a 6"
interior diameter (150 mm) insulated flexible duct (See note below).
B) The air intake register must not be installed more than ten (10) feet
(3050 mm) above the base of the fireplace.
C) The fresh air must come from outside the house. The air intake must
not draw air from the attic, basement or garage.
D) The air intake should be installed where it is not likely to be blocked by
snow or exposed to extreme wind and away from automobile exhaust
fumes, gas meters and other vents.
E) The duct and register may be installed above or below floor level.
NOTE: We recommend not to exceed 20 feet of 4" flexible pipe. If you
require a longer length we recommend that you use a 5" diameter flex-
ible pipe for the complete run up to 30 feet and a 6" diameter pipe for a
run of up to 40 feet.
Blower
Tightening Collar
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Make a 4-1/4" (110 mm) hole in the outside wall of the house at the chosen
location. From outside, place the outside air register in the hole (open
side down) and fasten the register to the wall with screws as shown (see
Figure 28). Slip the pipe into the insulated sleeve. Place the insulated
pipe over the register tube and over the fireplace's outside air connector
(see Figure 29). At each end, carefully pull back the insulation and plastic
cover exposing the flexible pipe. Using the aluminium tape provided,
wrap the tape around the joint between the flexible pipe and the air inlets.
Carefully push the insulation and plastic cover back over the pipe. Using
aluminium tape, fasten the plastic cover in place.
Outside
Intake
Screw
Opening
Facing
Down
Wall
Figure 28 - Outside Connection
Fireplace
Connection
Aluminum Tape
Plastic
Cover
Insulation
Flexible Pipe
Aluminum Tape
Figure 29 - Outside Air Connection To The Fireplace
Aluminum Tape
Plastic Cover
Insulation
Flexible Pipe
Aluminum Tape
Fireplace
19