Cd19D5 - Trane UC1B040A9241A series Installer's Manual

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.
Slope 1/4" per ft.
All horizontal pipes must be supported
at a maximum of 3 foot intervals
NOTES:
A) Condensate trap for vent pipe must be a mini-
mum 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 conden-
sate is permissible if allowed by local codes. Cau-
tion should be taken to prevent drains from freez-
ing or causing slippery conditions that could lead
to personal injury. Excessive draining of conden-
sate may cause saturated ground conditions that
may result in damage to plants.
C) The condensate trap should be primed at initial
start up prior to heating season operation.
VENTING THROUGH THE ROOF
When penetrating roof with a 2" PVC vent pipe, a 2"
electrical conduit flashing may be used for a weather
tight seal. Lubricate flexible seal on flashing before PVC
pipe is pushed through the seal. (Field Supplied)

18-CD19D5-25

b
40 Inch
Upflow or
Downflow
Furnace
6" Min.
Installer's Guide
NOTE:
No vent cap as shown in Figure 36 is the preferred
method for vertical vent termination in extremely cold
climates.
In extreme climate conditions, insulate the exposed
pipe above the roof line with Armaflex type insulation.
n
m
MAINTAIN 12 IN.
(18 IN. FOR CANADA)
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
24 IN. ABOVE ROOF.
BAYAIR30AVENTA
,
REMOVE RIBS
FROM CAP
COMBUSTION
AIR
ROOF FLASHING BOOT
(FIELD SUPPLIED)
VENT
VENT
COMBUSTION
AIR
MAINTAIN 12 IN.
VENT
(18 IN. FOR CANADA)
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
24 IN. ABOVE ROOF
SUPPORT
(FIELD SUPPLIED)
ELBOW
(FIELD SUPPLIED)
COMBUSTION
AIR
25