Furnace Control Programming; And Navigation - Bryant 926SB Installation Instruction

926SB: Installation, Start-up, Operating, Service and Maintenance Instructions
Unit Size
30040V14
36040V17
36060V14
48060V17
48080V17
60080V21
60100V21
66120V24
*. Setting #1 is the default setting for Constant Fan

FURNACE CONTROL PROGRAMMING

AND NAVIGATION

On-Board Control Method
CAUTION
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury, or death.
Blower access door switch removes 115-V power to control. No
component operation can occur unless switch is closed. Caution must
be taken when manually closing this switch for service purposes.
Do not tape or permanently allow the door switch to be bypassed.
Temporarily depress the door switch with one hand while accessing the
service buttons with your other hand. Do not touch uninsulated
electrical components.
Display
iDl
Ht
CL2
CL1
Heat Pump Defrost Mode
Hpd
, , Continuous Fan Mode
Cfn CF2 CF3
Secondary Unit Operating
Blower during
bLr
##.#
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 20 – Default Airflow Settings
Default Airflow Settings
Heating
13
9
15
10
15
9
13
17
Table 21 – System Status Display Codes
Operating Mode Notes:
Idle/Standby Mode No active demands
Heating Mode Gas Heating active
High Cooling Mode Cooling or Heat Pump active
Low Cooling Mode Cooling or Heat Pump active
Gas Heating cycle active during Heat Pump Defrost cycle
Continuous Fan active
Only used when control is the secondary furnace of a twinned furnace system and primary
, , or
Cfn CL
furnace is active
Ht
Active Status Code See Fig. 60
*
High Cooling Low Cooling
25 17
24 13
25 15
25 13
24 14
25 14
24 12
22 12
This furnace model is equipped with an on-board 3-digit LCD display
with pushbutton navigation for the adjustment of operating parameters,
diagnostics, and service. The control board must be powered to use the
display and pushbuttons. Upon startup, the control will alternate
displaying the Model Program Number (PRG) and Software Version
(uEr). The control board has been programmed at the factory with a
Model Program Number specific to the furnace product number. The
correct Model Program Number is shown on the furnace rating plate.
The system's status is displayed after startup or after no control buttons
have been pressed for 60 seconds. Status Code LED will also be
illuminated or blinking when displaying the system status. The codes
which indicate the current operating mode of the system as shown in
Table 21.
or Furnace Service Label for codes
52
Designated Airflow Settings
Heating Const. Fan
(9 - 15) (1 - 3)
(5 - 10) (1 - 3)
(10 - 15) (1 - 3)
(6 - 11) (1 - 8)
(9 - 16) (1 - 3)
(6 - 12) (1 - 8)
(10 - 14) (1 - 6)
(12 - 17) (1 - 3)