Bard Bayrd Furnace 403293A - Manual (Page 68)

4. Condensate Disposal
Vent system must contain a tee with drain plug
and means of disposing of condensate. The drain
tee must be within the first 18 inches of vent run
to prevent furnace condensate and rain from
draining back into furnace.
•5" FOR 3" OIA. PIPE
*9" FOR 4.' DlA. PIPE
TO coMsusTieiE
material
HIGH TEMPERATURE
DRAIN TEC
*SEE SECTION B. "PLANNING THE INSTALLATION’
NOTE: tf flexible vinyl drain tube is in an area
that may expose condensate to below
freezing temperatures, use heat tapes.
Use heat tapes that will not melt conden­
sate tubing materia).
5. Wall Penetration
a. When penetrating a non-combustible wall,
make the hole just large enough for vent
pipe. Use approved sealant material to sea)
vent pipe to the non-combustible wait. See
Figure 4,
Figure 2
Attach correct size flexible vinyl drain tubing to
drain plug. Fill the drain tube trap with a water
seal. This will prevent combustion products from
escaping through the flexible vinyl drain tube.
See Figure 3.
WARNINGt FAILURE TO FILL FLEXIBLE
VINYL DRAIN TUBE TRAP WITH A WATER
SEAL COULD ALLOW COMBUSTION PROD­
UCTS TO COLLECT IN STRUCTURE DURING
USE, RESULTING IN INJURY OR DEATH.
66
b, When penetrating a combustible wall, you
must use a listed wall thimble. All thimbles
are adjustable to fit variable wall thicknesses
and are listed in the parts list on page 2.
WARNINGS FAILURE TO USE A WALL
THIMBLE COULD CAUSE COMBUSTIBLE
WALL MATERIAL TO IGNITE RESULTING
IN DAMAGE, INJURY OR DEATH.
NOTE: Use Figure 5 In conjunction with
instructions below to properly install
wall thimble.
1. Cut an 8 1/2 inch diameter round hole in
wall. Locate it where you can maintain
the necessary 1 /4 inch per foot rise in the
vent system.
2. Hold thimble in place by a):^lying ap­
proved sealant to male half before as­
sembling. Insert thimble into wall.
3. After inserting thimble, secure to outside
and inside wails with nails or screws.
Seal thimble to inner and outer walls
with approved sealant material.
4. Insert a section of vent pipe through
thimble that leaves at least 14 inches of
vent pipe protruding from thimble.
5. To prevent vent pipe from moving in
thimble, attach stainless steel hose
clamp to both pipe ends extending
from thimble. See Figure 5.