
AIRFLOW DATA
36 Rev. 3
* Refer to unit installation instructions for changing speed.
1 These airflows will be held constant up to 0.8" w.c. E.S.P. with a coil. In order to provide maximum comfort levels the BBC attempts to maintain
a supply temperature of 50° F to 65° F during cooling and 90° F to 105° F during heat pump heating. Airflow may be adjusted 10% to maintain
the supply temperature.
2 Fan only airflows will also increase or decrease 15% if the "ADJUST" pin set on "+" or "-".
3 This application should not be used only with the "Tonnage" selector on "D" and the "Adjust" selector on "-".
4 This application should be used only with the "Tonnage" selector on "D" and the "Adjust" selector on "-".
External
Static
BBA24A2A
Airflow (CFM)
BBA36A2A
Airflow (CFM)
BBA48A2A
Airflow (CFM)
BBA60A2A
Airflow (CFM)
(in. w.c.) Low Med High Low Med High Low Med High Low Med High
0.2 590 830 1100 1030 1280 1430 1090 1490 1720 1480 1680 2110
0.3 550 790 1070 1000 1250 1420 1060 1450 1670 1420 1630 2050
0.4 500 740 1040 960 1210 1370 1020 1400 1620 1350 1560 2020
0.5 680 970 920 1160 1320 970 1340 1550 1280 1490 1940
0.6 600 880 860 1100 1240 910 1280 1470 1210 1420 1870
0.7 790 800 1030 1150 750 1170 1380 1100 1340 1770
0.8 660 690 940 1070 650 1060 1220 1000 1240 1660
0.9 850 970 850 970 850 1110 1550
230 V, no heaters, no filter, no coil
Heating or Cooling Operation
1
Fan Only
Application
Tonnage
Pin Setting
Adjust Pin
on "-"
Nominal
(All Modes)
Adjust Pin
on "+"
"MAN FAN"
Jumper
In Place
2
"MAN FAN"
Jumper
Removed
2
1½ Ton (18) A* 550 640 720 320 640
2 Ton (24) B* 700 820 950 410 820
2½ Ton (30) C* 880 1020 1140 510 1020
3 Ton (36) D* 1050 1230 1400 615 1230
3½ Ton (42)
D
3
*
1230 1400
Heating or Cooling Operation
1
Fan Only
Application
Tonnage
Pin Setting
Adjust Pin
on "-"
Nominal
(All Modes)
Adjust Pin
on "+"
"MAN FAN"
Jumper
In Place
2
"MAN FAN"
Jumper
Removed
2
2½ Ton (30) A* 850 1000 1150 500 1000
3 Ton (36) B* 1020 1200 1380 600 1200
3½ Ton (42) C* 1200 1420 1630 710 1420
4Ton (48) D* 1360 1600 1800 800 1600
Heating or Cooling Operation
1
Fan Only
Application
Tonnage
Pin Setting
Adjust Pin
on "-"
Nominal
(All Modes)
Adjust Pin
on "+"
Jumper
In Place
2
Jumper
Removed
2
2½ Ton (30)
D
4
*
1070
3 Ton (36) D* 1070 1280 1460 640 1280
3½ Ton (42) C* 1250 1490 1680 745 1490
4 Ton (48) B* 1440 1680 1950 840 1680
5 Ton (60) A* 1580 1880 2050 940 1880
BBC36A2A
BBC48A2A
BBC60A2A
Good
Food