Bryant 986TB Installation, Start-Up, Operating And Service And Maintenance Instructions page 76

SETUP SWITCH
SW1-1
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7 & SW1-8
SW4-3
1
SW 2, AC (Cooling Airflow) SETUP SWITCHES
The AC setup switch selects desired cooling or high stage cooling (two stage units) airflow.
AC AC
See Air Delivery Tables for specific switch settings
SW 3, CF (Continuous Fan) SETUP SWITCHES
1
The CF setup switch selects desired Continuous Fan Airflow
The CF switch position is the low cooling airflow selection for two stage cooling units.
The CFM values in the Air Delivery Tables for SW 3 settings are the same as SW 2 settings.
CF
SW 3 cannot be set for airflow higher than SW 2
See Air Delivery Tables for specific switch settings
Furnace Setup Switch Description
SWITCH NAME
Status Code Recovery
Low Heat Only
(Adaptive Heat Mode when
SW1-2 is OFF)
Low Heat Rise Adjustment
Comfort/Efficiency Adjustment
CFM per ton adjust
Component Self Test
Blower OFF delay
CFM per ton Adjust
AIR CONDITIONING (A/C) SETUP SWITCHES
CONTINUOUS FAN (CF) SETUP SWITCHES
Fig. 64 − Furnace Setup Switches and Description (Continued)
NORMAL POSITION
Turn ON to retrieve up to 7 stored status codes for
OFF troubleshooting assistance when R thermostat
lead is disconnected.
When SW1-2 is OFF allows 2-stage operation with
a single stage thermostat. Turn ON when using
2-stage thermostat to allow Low Heat operation
OFF
when R to W/W1 closes and High Heat operation
when R to W/W1 and W2 close.
Turn ON to increase Low Heat airflow by 18%.
This compensates for increased return air
temperature caused with bypass humidifier.
OFF
Turn ON to decrease low heat airflow 20% for 90%
models or 16% for 80% models & high heat airflow
ON
15% for 90% models or 10% for 80% models.
Turn ON for 400 CFM per ton, Turn OFF for 350
OFF
CFM per ton. See also SW4.
Turn ON to initiate Component Self Test for
troubleshooting assistance when R thermostat
OFF
lead is disconnected. Turn OFF when Self Test is
completed.
Blower Off Delay time – adjustable 90 seconds to
180 seconds. See table in Adjustments section or
ON or OFF
refer to unit wiring diagram.
Allows additional CFM per ton selections when
used with SW 1-5
325 CFM per ton (nominal) when SW 4-3 ON and
SW 1-5 OFF
350 CFM per ton (nominal) when SW 4-3 OFF and
SW 1-5 OFF
OFF
370 CFM per ton (nominal) when SW4-3 ON and
SW 1-5 ON
400 CFM per ton (nominal) when SW 1-5 ON and
SW 4-3 OFF
See Air Delivery Tables for model specific CFM
vs. static pressure vs. static pressure
76
DESCRIPTION OF USE
A13309