Trane UC1B040A9241A series Installer's Manual page 19

MAXIMUM VENT LENGTH:
MAXIMUM TOTAL EQUIVALENT FEET FOR
VENT AND INLET AIR PIPES (See Notes)
2" PIPE
MODEL & FITTINGS
*DC1B040A9241A 60
*DC1B060A9361A 50
*DC1B080A9421A 45
*DC1C100A9481A NOT ALLOWED
*DC1D120A9601A NOT ALLOWED
NOTES: * - First letter may be "A" or "T"
1. The INLET AIR of one pipe systems require the installation of a 90° elbow (to prevent dust and debris from falling straight into the furnace) and a 2 foot
horizontal or vertical straight pipe section connected before or after the elbow.
2. DO NOT MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET (Except adapters at the top of the furnace).
If different inlet and vent pipe sizes are used, the vent pipe must adhere to the maximum length limit shown in the table above (See Note 7 below for exception).
The inlet pipe can be of a larger diameter, but never smaller than the vent pipe.
3. MAXIMUM PIPE LENGTHS MUST NOT BE EXCEEDED! THE LENGTH SHOWN IS NOT A COMBINED TOTAL, IT IS THE MAXIMUM LENGTH OF EACH
(Vent or Inlet air pipes in two pipe systems).
4. One standard radius 90° elbow is equivalent to 12' of 4" pipe; one SHORT radius 90° elbow is equivalent to 10' of 3" pipe and one LONG radius elbow is
equivalent to 6' of 3" pipe. One SHORT/LONG radius 90° elbow is equivalent to 7½' of 2½" pipe, & 5' of 2" pipe. Two 45° elbows equal one 90°elbow.
5. The termination tee or bend must be included in the total number of elbows. If the BAYVENT100 termination kit is used, the equivalent length of pipe is 5 feet.
There is zero equivalent length for the BAYVENT200.
6. Pipe adapters are field supplied.
7. 4" pipe may be reduced to 3" for termination with BAYAIR30AVENTA or BAYVENT200 without additional length restriction.
UPFLOW FURNACE
B
Air Inlet
A
j
D
E E
V
V
B
L
V
VENT TERMINAL
18-CD19D5-25
DOWNFLOW/ HORIZONTAL VENTING TABLE
DIRECT VENT (2 PIPE SYSTEM) -
2-1/2" PIPE 3" PIPE
& FITTINGS & FITTINGS
80 100
80 100
80 100
80 100
15 60
SINGLE PIPE VENTING
A (0-2') or greater
B (0-2') or greater
A+B = 2' minimum
Vent only
to outside
CORNER DETAIL
C
V
B
V
V
B
F
B
X AIR SUPPLY INLET
TABLE 11
NONDIRECT VENT (1 PIPE SYSTEM) -
MAXIMUM TOTAL EQUIVALENT FEET FOR
4" PIPE 2" PIPE
& FITTINGS & FITTINGS
130 50
130 50
130 40
130 NOT ALLOWED
130 NOT ALLOWED
Air Inlet
h
INSIDE
G
V
B
V
X
V
B J
A
AREA WHERE TERMINAL IS NOT PERMITTED
Installer's Guide
VENT PIPE ONLY (See Notes)
2-1/2" PIPE 3" PIPE
& FITTINGS & FITTINGS
80 80
80 80
80 80
80 80
25 70
DOWNFLOW
FURNACE
Vent only
to outside
A
A = 2' minimum
H
I
M
4" PIPE
& FITTINGS
130
130
130
130
130
X
V
K
19