Bryant 352AAV Installation, Start-Up, And Operating Instructions Manual page 37

SETUP SWITCH NO. SWITCH NAME
Adaptive Heat
SW---1
Blower OFF
SW---2
Blower OFF
SW---3
NOTE: Select 1 vent pipe connection and
1 combustion-air pipe connection.
AIR
FLOW
COMBUSTION- COMBUSTION-
AIR AIR
VENT
VENT
*
†
UPFLOW
COMBUSTION-
AIR
VENT
**
AIR
FLOW
†
† †
HORIZONTAL-LEFT DISCHARGE
* For Non-Direct Vent (1-Pipe) system, orient elbow so that its
opening faces down.
** For Non-Direct Vent (1-Pipe) system, orient elbow so that its
opening faces sideways.
† An external trap kit (see furnace product data sheet) must be used.
† †
Bottom combustion-air not allowed for non-direct vent
Fig. 38 - - Combustion-Air and Vent Pipe Connections
Table 12 – Blower Off Delay Setup Switch (SW) 2-Stage Units
with PSC Blower Motors
DESIRED HEATING MODE
BLOWER-OFF DELAY (SEC)
90
120
150
180
Table 11 – Furnace Setup Switch Description
NORMAL POSITION
OFF
Mode
ON or OFF
delay
ON or OFF
delay
NOTE: Select 1 vent pipe connection and
1 combustion-air pipe connection.
VENT
VENT
*
†
COMBUSTION- COMBUSTION-
AIR AIR
AIR
FLOW
DOWNFLOW
COMBUSTION-
AIR
VENT
**
AIR
FLOW
† † †
HORIZONTAL-RIGHT DISCHARGE
A05092
SETUP SWITCH
SW---2 SW---3
OFF OFF
OFF ON
ON OFF
ON ON
DESCRIPTION OF USE
When off, allows 2-stage operation with a single-stage
thermostat. Turn on when using 2-stage thermostat to allow Low
Heat operation when R to W/W1 closes and High Heat operation
when R to W/W1 and W2 close.
Control blower OFF delay time. Used in conjunction with SW-3.
See Table 9B.
Control blower OFF delay time. Used in conjunction with SW-2.
See Table 9B.
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
PVC 90° ELBOW
COMBUSTION-AIR DISC
(FACTORY-SUPPLIED IN
LOOSE PARTS BAG)
Length of Straight Pipe Portion of
Combustion-Air Inlet Pipe Assembly - - In. (mm)
CASING WIDTH
17---1/2 (445)
21(533)
24---1/2 (622)
Fig. 39 - - Combustion- -Air Inlet Pipe Assembly
NOTE: (Direct Vent/2-pipe ONLY) vent pipe system has the
same diameter and same length as combustion air pipe mentioned
in section "Assembly of Combustion Air Pipe (Direct Vent/2-Pipe
system ONLY)."
NOTE: Do not count elbows or pipe sections in terminations or
within furnace (all elbows shown in Fig. 44 and Fig. 45 are not be
to counted).
2. Determine location of vent pipe connection to inducer
housing as shown in Fig. 38 for application.
3. Install vent pipe grommet (factory-supplied in loose parts
bag) into selected furnace casing vent pipe hole. (See
Fig. 44.)
4. Reposition elastomeric (rubber) inducer housing outlet cap
and clamp to appropriate unused inducer housing
connection. Tighten clamp.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit component
damage.
Inducer housing outlet cap must be installed and fully seated
against inducer housing. Clamp must be tightened to prevent
any condensate leakage.
37
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
PVC PIPE
A
A96211
A
8---1/2 ±1/2 (216 ± 13)
10---1/2 ±1/2 (267 ± 13)
12 ±1/2 (318 ± 13)