Lennox 206M User Manual
HEARTH PRODUCTS
KITS AND ACCESSORIES
INSTALLATION INSTRUCTIONS FOR OUTSIDE COMBUSTION AIR GATE KIT FOR USE WITH UVF-36,
UVFRC-3628, UVFRC-3628-H, UVFRC-4228 & UVFRC-4228-H UNIVERSAL VENTFREE FIREBOXES
KIT CONTENTS
ITEM QUANTITY DESCRIPTION
1 1 ea. Air Gate Assembly
2 1 ea. Arm, Air Gate
3 1 ea. Bracket, Air Gate Arm
4 1 ea. Collar, Outside Air
5 1 ea. Duct, 4”
6 1 ea. Hardware Kit (9 long screws & 4 short screws)
7 1 ea. Instruction Sheet
Table 1 - Refer to Figure 1
6
5
750,206M
REV. NC 03/2006
1
Cat. No. Model Description
H3991 OAK-UVFRC OUTSIDE AIR GATE & DUCT KIT
WARNING
Do not operate the combustion air gate with a fi re in the fi rebox
unless all components of this kit have been installed.
Side View of Arm
Right Hand Side
of Firebox
Remove Outside
Air Knock-Out
installed into Air
Gate.
Air Gate Assembly
1
7
2
4
3
Figure 1 - Kit Contents (see Table 1)
TOOLS / SUPPLIES REQUIRED
• 5/16” Nut driver or Socket • Duct Tape • Silicon Type Caulking
GENERAL INFORMATION
This kit is for use with models UVF-36, UVFRC-3628, UVFRC-3628-H,
UVFRC-4228 & UVFRC-4228-H Ventfree fi reboxes when installed in conventional construction.
These kits have an air gate assembly which allows adjustment of the amount
of outside air delivered to the fi re for combustion. Only one air kit, located
on the right side of the fi rebox, is required.
If you encounter any problems, need clarifi cation of these instructions or are not
qualifi ed to properly install this kit, contact you local distributor or dealer.
Retain These Instructions for Future Reference
INSTALLATION INSTRUCTIONS
1. Remove the outside air knock-out on the right hand side of appliance
(See Figure 2 for location).
2. Assemble the Air Gate as shown in Figures 3 & 4.
3. Take the Air Gate Assembly and feed the arm
through the round opening (see Figures 5 & 6)
and then through the side frame opening. Ensure
the air gate arm remains attached to the air gate
(see Figure 7).
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 2
Air Gate
Figure 4
Air Gate Arm
Figure 3
Air Gate Arm
Outside View of
Arm installed
into Air Gate.
When assembled onto appliance, the notch
here must be positioned down as shown.
Air Gate
Air Gate Arm
Right Side
Panel on
Firebox
Figure 5
1
5. Secure the air gate arm support bracket (item
#3 in Figure 1) as shown in Figure 9.
Slot
Locate this slot on right
side panel of fi rebox.
Secure the duct to
the collar using
duct tape as
shown.
Collar
Figure 11
Hold the air gate arm and align the air gate assembly to fi t fl ush in the opening.
Figure 6
Front right
side of fi rebox
opening
Locate this opening
Air Gate Arm
CLOSED POSITION
OPEN POSITION
Feed the bent end of the air gate arm
into this notched opening.
Figure 7
4. Secure the air gate to the fi rebox as shown
in Figure 8.
Right Side
of Firebox
Ensure this
Air
Gate
Secure the Air Gate to the fi replace with four
(4) long screws (provided) through the outside
holes (indicated by arrows).
notch is
positioned
on the
bottom half
of air gate.
Figure 8
Insert the arm support bracket as shown.
Adjust arm as necessary to rest on the bracket
Slot
Bracket
Secure the
bracket with a
Long
Screw
screw provided.
Bracket
Figure 9
6. Secure the outside air collar (item #4 in Figure
1) as shown in Figure 10.
Secure the outside air collar over the air gate
using the four (4) long screws (provided)
through the inside holes (indicated by arrows).
Outside
Air
Collar
Figure 10
7. Attach fl exible duct to the outside air collar
using two (2) short screws (provided), then
wrap with duct tape as shown in Figure 11.
8. Duct Hole Framing: Cut or frame a hole through
the outside of the enclosure for the installation of
the duct inlet hood. A 5" (127 mm) diameter hole
is required. Feed the loose end of the fl exible duct
through the hole cut for the inlet hood and attach
to the collar on the inlet hood using two (2) short
screws (provided), then wrap with duct tape.
Insert the hood into the opening. Secure in place
with nails driven through the holes in hood fl ange.
Seal with noncombustible waterproof silicon type
caulking. If additional duct is needed, use Class
0 metallic air duct (refer to Figure 12).
Note: The Class 0 metallic air duct can be routed out
the back wall or side wall, up through the ceiling or
fl oor joists to an outside wall. Check local building
codes for any restrictions. We recommend that the
inlet be at least four (4) feet above grade level.
CAUTION
Do not install the air inlet in the attic,
garage, near combustible gases (i.e.
paint, gasoline, etc.) or where there
is a fuel burning appliance or where
the opening could be blocked by snow,
bushes or other obstacles.
4" (102 mm)
Class 0 air duct
Hood
Secure the hood
to a vertical post
with the inlet posi-
Air Inlet
tioned downward.
• IN COLD CLIMATES
THE AIR DUCT SHOULD
BE INSULATED.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LHP reserves the right to make changes at any time, without notice, in design, materials, specifi cations, prices and the discontinuance of colors, styles and products. Consult your local distributor
for fi replace code information.
Printed in U.S.A. © LHP 2006
P/N 750,206M REV. NC 03/2006
2
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 12
LHP
1110 West Taft Avenue • Orange, CA 92865
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