Installer’s Guide
DOWNWARD VENTING
Furnace may be in vertical or horizontal configuration.
DOWNWARD VENT
LENGTH IS LIMITED
TO A MAXIMUM OF 15
EQUIVALENT FEET.
Slope 1/4" per ft.
x
40Inch
Upflow or Downflow Furnace
NOTE:
Both venting methods shown in Figure 30 & 31 must also have the combustion air inlet installed - meeting dimension requirements of Figure 21.
c
Slope 1/4" per ft.
6" Min.
All horizontal pipes must be supported
at a maximum of 3 foot intervals
NOTES:
A) Condensate trap for vent pipe must be a minimum |
of 6 inches in height. |
B) Condensate trap for vent and inlet pipe must be |
connected into a condensate drain pump; an open |
or vented drain; or it can be connected to the outlet |
hose of the furnace's condensate trap. Outdoor |
draining of the furnace and coil condensate is per- |
missible if allowed by local codes. Caution should |
be taken to prevent drains from freezing or causing |
slippery conditions that could lead to personal in- |
jury. Excessive draining of condensate may cause |
saturated ground conditions that may result in |
v
MAINTAIN 12 IN.
(18 IN. FOR CANADA) MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24 IN. ABOVE ROOF.
VENT
COMBUSTION
AIR
damage to plants. |
C) The condensate trap should be primed at initial |
start up prior to heating season operation. |
VENTING ROUTED THROUGH A MASONRY CHIMNEY VENT FITTING MATERIAL – STAINLESS STEEL
Gas and liquid tight single wall metal vent fitting, de- signed for resistance to corrosive flue condensate such as Type
These fittings and fitting accessories are to be supplied locally.
DIRECTION OF STAINLESS STEEL FITTING
All stainless steel fitting must be installed with male end towards the furnace.
All horizontal stainless steel sections must be posi- tioned with the seam on top.
All long horizontal sections must be supported to pre- vent sagging.
All pipe joints must be fastened and sealed to prevent escape of combustion products into the building.
BAYAIR30AVENTA CONCENTRIC VENT
|
| ROOF TOP APPLICATION |
b | VENT | MAINTAIN 12 IN. |
(18 IN. FOR CANADA) | ||
REMOVE RIBS |
| MINIMUM CLEARANCE |
FROM CAP |
| ABOVE HIGHEST |
|
| ANTICIPATED SNOW |
COMBUSTION |
| LEVEL. MAXIMUM OF |
| 24 IN. ABOVE ROOF | |
AIR |
| |
|
| |
ROOF BOOT |
|
|
(FIELD SUPPLIED) |
|
|
|
| SUPPORT |
|
| (FIELD SUPPLIED) |
|
| ELBOW |
|
| (FIELD SUPPLIED) |
VENT |
| COMBUSTION |
|
| AIR |
CONCENTRIC VENT
ROOF INSTALLATION
22 |
