Bryant 355AAV Installation Instructions Manual page 44

AIR CONDITIONING
TONS (12,000 BTU/HR)
1--- 1/2
2
2--- 1/2
3
3--- 1/2
4
5
6
X Indicates an allowable selection.
* Airflow shown in parentheses is airflow unit that the unit will deliver when setup switch SW1 ---5 is ON (selects 400 CFM/ton)
AIR CONDITIONING (A/C) OR CONTINUOUS-FAN (CF)
AIRFLOW SELECTION CHART
BASED ON 350 CFM/TON (SETUP SWITCH SW1-5 OFF)
SETUP SWITCH SW2 & SW3 POSITIONS
MODEL
SIZE
DEF. 525 700
040, 060, 3.5T080
2
5T080, 100 DEF. 700 875
2
120 DEF. 700 875
2
BASED ON 400 CFM/TON (SETUP SWITCH SW1-5 ON)
SETUP SWITCH SW2 & SW3 POSITIONS
MODEL
SIZE
DEF. 600 800
040, 060, 3.5T080
2
5T080, 100 DEF. 800 1000
2
120 DEF. 800 1000
1. DEFAULT A/C AIRFLOW WHEN A/C SWITCHES ARE IN OFF POSITION
2. DEFAULT CONT. FAN AIRFLOW WHEN CF SWITCHES ARE IN OFF POSITION
3. SWITCH POSITIONS ARE ALSO SHOWN ON FURNACE WIRING DIAGRAM
Fig. 47 - - A/C or CF Airflow Selection Chart Based on 350
and 400 CFM/Ton
CAUTION
!
UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent unit
operation or performance satisfaction.
These furnaces are equipped with a manual reset limit switch
in burner box. This switch opens and shuts off power to the
gas valve if an overheat condition (flame rollout) occurs in
burner enclosure. Correct inadequate combustion- -air supply
or improper venting condition before resetting switch. DO
NOT jumper this switch.
Before operating furnace, check flame rollout manual reset switch
for continuity. If necessary, press button to reset switch.
Step 2 — Select Setup Switch Positions
AIR CONDITIONING (A/C) SETUP SWITCHES
The air conditioning setup switches are used to match furnace
airflow to cooling unit used.
To set the desired cooling airflow:
1. Remove main furnace door and blower access panel.
AIRFLOW* (CFM)
525 (600)
700 (800)
875 (1000)
1050 (1200)
1225 (1400)
1400 (1600)
1750 (2000)
2100 (2100)
875 1050 1225 1225 1225
1
1050 1225 1400 1750 1750
1
1050 1225 1400 1750 2100
1
1000 1200 1400 1400 1400
1
1200 1400 1600 2000 2000
1
1200 1400 1600 2000 2100
2 1
A07899
040,060 & 080---14
080---20 & 100 MODEL
MODEL
X
X
X
X
X
Fig. 48 - - Example of Setup Switch in Off Position
2. Locate A/C setup switches on furnace control. (See Fig. 37.)
3. Determine air conditioning tonnage used.
4. Use Fig. 47 or wiring schematic to determine proper setup
position of A/C switches. (See Fig. 36 and 48.)
NOTE: Excessive airflow caused by improper A/C switch setup
may cause condensate blowoff in cooling mode.
5. Replace main furnace door and blower access panel.
NOTE: EAC- -1 terminal is energized whenever blower operates.
HUM terminal is only energized when blower is energized in
heating.
CONTINUOUS FAN (CF) SETUP SWITCHES
The CF setup switches are used to select desired airflow when
thermostat is in continuous fan mode or to select low- -cooling
airflow for two- -speed cooling units. This setup feature allows
continuous fan airflow or low- -cooling airflow to be adjusted. To
set desired continuous fan airflow or low- -cooling airflow:
1. Remove main furnace door and blower access panel.
2. Locate CF setup switches on furnace control. (See Fig. 37.)
3. Determine desired continuous fan airflow or low- -cooling
airflow.
4. Use Fig. 47 or wiring schematic to determine proper setup
position of CF switches. (See Fig. 36 and 48.)
5. Replace main furnace door and blower access panel.
44
120 MODEL
X X
X X
X X
X X
X X
X X
X
A07907