Venting Tables - Trane UC1B040A9241A series Installer's Manual

Upflow/ horizontal and downflow/ horizontal gas-fired condensing furnaces
Hide thumbs Also See for UC1B040A9241A series:
Table of Contents

Advertisement

Installer's Guide
g
VENT AND INLET AIR CONNECTIONS
Seal INLET AIR PIPE
with RTV sealant
IMPORTANT:
All joints must be water tight. Flue condensate is some-
what acidic, and leaks can cause equipment damage.
Connection of the pipe and collar of the combustion
air inlet should just be a friction fit. It is recommended
that the inlet air joint be sealed with RTV type sealant
to allow the joint to be separated for possible future ser-
vice. The inlet and vent pipes must be properly sup-
ported throughout the entire length.
MAXIMUM VENT LENGTH:
MAXIMUM TOTAL EQUIVALENT FEET FOR
VENT AND INLET AIR PIPES (See Notes)
2" PIPE
MODEL
& FITTINGS
*UC1B040A9241A
60
*UC1B060A9361A
60
*UC1B080A9421A
50
*UC1C080A9601A
50
*UC1C100A9481A
NOT ALLOWED
*UC1D100A9601A
NOT ALLOWED
*UC1D120A9601A
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 thefurnace) 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.
18
Seal VENT PIPE
with RTV sealant
Front of Furnace
UPFLOW/ HORIZONTAL VENTING TABLE
DIRECT VENT (2 PIPE SYSTEM) -
2-1/2" PIPE
3" PIPE
& FITTINGS
& FITTINGS
80
100
80
100
80
100
80
100
40
100
40
100
15
60
Connection of the vent pipe to the vent collar should
also be accomplished using RTV type sealant. This type
sealant provides a connection which remains flexible
and can be separated in the future if service needs re-
quire the removal of the vent pipe for service or clear-
ance.
NOTE:
To ensure proper operation at the vent lengths indi-
cated, the combustion air inlet and vent terminals
should be in the same pressure zone. Terminating the
vent and inlet in different pressure zones will change
the maximum vent lengths and may cause nuisance
tripping of the pressure switch(es). The amount of
change can not be predicted. The selection of the inlet
and outlet terminal locations are the responsibility of
the designer/ installer. If the installer chooses separate
pressure zones for the terminals, the combustion air
inlet termination must be in the higher (more positive)
pressure zone.
TABLE 10
NONDIRECT VENT (1 PIPE SYSTEM) -MAXIMUM TOTAL
4" PIPE
2" PIPE
& FITTINGS
& FITTINGS
130
50
130
50
130
40
130
40
130
NOT ALLOWED
130
NOT ALLOWED
130
NOT ALLOWED
EQUIVALENT FEET FOR
VENT PIPE ONLY (See Notes)
2-1/2" PIPE
3" PIPE
& FITTINGS
& FITTINGS
80
80
80
80
80
80
80
80
40
80
40
80
25
70
18-CD19D5-25
4" PIPE
& FITTINGS
130
130
130
130
130
130
130

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents