Multiventing And Vent Termination; Condensate Drain; General - Bryant D Series Installation, Start-Up, And Operating Instructions Manual

TABLE 7—MAXIMUM ALLOWABLE EXPOSED VENT PIPE LENGTH (FT) WITH AND WITHOUT INSULATION
WINTER DESIGN
UNIT
TEMPERATURE
SIZE
040
060
080
100
120
140
* Pipe length (ft) specified for maximum pipe lengths located in unconditioned spaces. Pipes located in unconditioned space cannot exceed total allowable pipe length as
specified in Table 6.
† Insulation thickness based on R value of 3.5 per in.
For applications using combustion-air pipe option, indi-
cated by dashed lines in Fig. 30, install 90° street elbow into
90° elbow, making U-fitting. A 180° U-fitting may be used.
Sidewall terminations—Install bracket as shown in Fig. 33
or 34.
For applications using vent pipe option indicated by dashed
lines in Fig. 33, rotate vent elbow 90° from position shown
in Fig. 33.
4. Disassemble loose pipe fittings. Clean and cement using
same procedures as used for system piping.
5. Check required dimensions as shown in Fig. 30, 33, or 34.
C. Concentric Vent/Air Termination Kit
1. Determine location for termination.
Consideration of the following should be made when
determining an appropriate location for termination kit.
a. Comply with all clearance requirements as stated in
Table 5.
b. Termination kit should be positioned where vent vapors
will not damage plants/shrubs or air conditioning equip-
ment.
c. Termination kit should be positioned so it will not be
affected by wind eddy (such as inside building corners)
or that may allow recirculation of flue gases, airborne
leaves, or light snow.
d. Termination kit should be positioned where it will not be
damaged by or subjected to foreign objects, such as
stones, balls, etc.
e. Termination kit should be positioned where vent vapors
are not objectionable.
2. Cut one 4-in. diameter hole for 2-in. kit, or one 5-in.
diameter hole for 3-in. kit.
3. Loosely assemble concentric vent/air termination compo-
nents together using instructions in kit.
4. Slide assembled kit with rain shield REMOVED through
hole.
IN WINTER DESIGN TEMPERATURE AMBIENT*
MAX PIPE
DIAMETER
(°F) (IN.)
20 2
0 2
-20 2
20 2
0 2
-20 2
20 2-1/2
0 2-1/2
-20 2-1/2
20 3
0 3
-20 3
20 4
0 4
-20 4
20 4
0 4
-20 4
WITHOUT
INSULATION
45
28
10
65
35
20
70
47
28
70
50
28
70
48
23
70
57
30
NOTE: Do not allow insulation or other materials to accumulate
inside of pipe assembly when installing it through hole.
Roof terminations—Locate assembly through roof to ap-
propriate height as shown in Fig. 31.
Sidewall terminations—Locate assembly through sidewall
with rain shield positioned no more than 1-in. from wall as
shown in Fig. 32.
5. Disassemble loose pipe fittings. Clean and cement using
same procedures as used for system piping.
6. Check required dimensions as shown in Fig. 31 or 32.
IV. MULTIVENTING AND VENT TERMINATIONS
When 2 or more 350MAV Furnaces are vented near each other,
each furnace must be individually vented. NEVER common vent
or breach vent 350MAV furnaces. When 2 or more 350MAV
furnaces are vented near each other, 2 vent terminations may be
installed as shown in Fig. 35, 36, 37, 38, or 39, but next vent
termination must be at least 36 in. away from first 2 terminations.
It is important that vent terminations be made as shown to avoid
recirculation of flue gases. Dimension "A" in Fig. 35, 36, 37, 38,
and 39 represents distance between pipes or rain shields, as
touching or 2-in. maximum separation.
I. GENERAL
Condensate trap is shipped installed in the blower shelf and factory
connected for UPFLOW applications. Condensate trap must be
RELOCATED for use in DOWNFLOW and HORIZONTAL
applications.
Condensate trap MUST be used for all applications.
An external trap is not required when connecting the field drain to
this condensate trap.
The field drain connection (condensate trap or drain tube coupling)
is sized for 1/2-in. CPVC, 1/2-in. PVC, or 5/8-in. ID tube
connection.
Drain pipe and fittings must conform to ANSI standards and
ASTM D1785 or D2846. CPVC or PVC cement and primer must
conform to ASTM D2564 or F493. In Canada, use CSA or ULC
certified schedule 40 CPVC or PVC drain pipe, fittings, and
cement.
—29—
WITH 3/8-IN. OR
THICKER INSULATION†
70
70
58
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70

CONDENSATE DRAIN