Furnace Control Programming; And Navigation - Bryant 926TC Installation, Start-Up, Operating And Service And Maintenance Instructions

926TC: Installation, Start-up, Operating and Service and Maintenance Instructions
Airflow
Unit Size
Setting
1
2
3
4
5
6
7
8
9
10
11
12
66120V24
13
14
15
16
17
18
19
20
21
22
23
24
25
NOTE:
1. A filter is required for each return-air inlet. Airflow performance included 3/4-in. (19 mm) washable filter media such as contained in a factory - authorized accessory filter rack. See
accessory list. To determine airflow performance without this filter, assume an additional 0.1 in. w.c. available external static pressure.
2. Adjust the blower airflow setting as necessary for the proper air temperature rise for each installation.
3. Airflows over 1800 CFM require bottom return, two-side return, or bottom and side return. A minimum filter size of 20" x 25" (508 x 635 mm) is required.
4. For upflow applications, air entering from one side into both the side of the furnace and a return air base counts as a side and bottom return
5. The - entry indicates unstable operating conditions
Unit Size High Heating
30040V14 14
36040V17 9
36060V14 18
48060V17 10
48080V17 16
60080V21 10
60100V21 15
66100V21 13
66120V24 22
*. 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.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 19 – Air Delivery - CFM (with filter) (Continued)
Default
Setting
0.1 0.2
Cont. Fan 585 475
650 550
705 615
775 690
875 790
970 885
1055 975
1130 1060
1205 1130
1225 1155
1315 1250
1400 1340
1500 1440
1590 1535
Low Heating 1610 1555
1645 1590
Low Cooling 1740 1690
1785 1735
1880 1830
1970 1920
2090 2045
High Heating 2055 2005
2180 2140
High Cooling 2270 2230
2360 2305
Table 20 – Default Airflow Settings
Default Airflow Settings
Low Heating High Cooling
8
4
9
5
10
6
10
6
15
External Static Pressure (in. w.c.)
0.3 0.4 0.5
360 265 165
440 340 250
510 410 320
600 500 410
710 625 535
815 735 655
905 835 765
990 925 855
1065 1005 940
1090 1030 965
1185 1130 1070
1280 1220 1165
1380 1325 1275
1480 1425 1375
1500 1445 1395
1540 1485 1435
1635 1585 1535
1685 1635 1585
1785 1735 1690
1875 1830 1785
2000 1955 1915
1960 1915 1870
2095 2055 2015
2185 2145 2100
2245 2185 2130
*
Low Cooling High Heating
25 18
24 13
25 15
25 13
24 14
25 14
23 14
22 11
24 17
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.
53
0.6 0.7 0.8
- - -
155 - -
240 150 -
335 255 175
455 380 310
575 500 425
685 610 545
785 710 640
875 805 735
900 835 765
1010 950 885
1110 1050 990
1220 1170 1115
1325 1275 1225
1345 1295 1245
1385 1335 1290
1485 1440 1395
1540 1495 1445
1645 1600 1555
1740 1700 1655
1870 1830 1785
1820 1780 1735
1970 1930 1890
2060 2005 1945
2070 2005 1945
Designated Airflow Settings
Low Heating
(10 - 18) (5 - 10)
(5 - 12) (3 - 7)
(12 - 23) (6 - 11)
(6 - 13) (3 - 8)
(12 - 19) (6 - 12)
(6 - 13) (3 - 9)
(10 - 19) (5 - 12)
(9 - 17) (3 - 11)
(16 - 23) (10 - 16)
0.9 1.0
- -
- -
- -
- -
235 155
360 290
470 410
570 510
670 605
700 640
820 755
930 870
1055 1000
1175 1120
1195 1140
1240 1190
1345 1300
1400 1355
1510 1470
1615 1570
1745 1705
1695 1655
1850 1810
1885 1825
1885 1825
Const. Fan
(1 - 3)
(1 - 5)
(1 - 3)
(1 - 8)
(1 - 5)
(1 - 8)
(1 - 3)
(1 - 9)
(1 - 3)