Specifications

AIRFLOW DATA
34 Rev. 3
BCA18T
BHA18F
BCA24T
BHA24F
BCA30T
BHA30F
BCA36T
BHA36F
BCA42T
BHA42F
BCA48T
BHA48TA
BCA60T
BHA60TA
LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH
0.1 640 840 900 1270 1100 1270 1210 1430 1430 1660 1700 1990 1770 2320
0.2 620 820 860 1220 1020 1210 1160 1380 1420 1620 1690 1950 1760 2250
0.3 610 800 820 1150 980 1160 1100 1320 1400 1580 1660 1890 1740 2200
0.4 590 780 770 1070 930 1100 1040 1250 1350 1520 1620 1840 1690 2170
0.5 540 740 710 990 870 1040 960 1170 1300 1460 1590 1760 1650 2100
0.6 460 670 620 880 820 970 900 1070 1260 1390 1530 1680 1580 2020
NOTES: 1.
2.
3.
4.
5.
6.
7.
8.
TOTAL
EXTERNAL
STATIC "W.C.
All airflow is with the blower in the upflow or horizontal left position. For counterflow or horizontal right, airflow at a given
ESP will be about 5 to 10% lower than is shown.
Data shown without filters. Consult filter manufacturer for pressure drop to be added.
Data shown without heater kits. If adding 14.4 KW or more, use temperature rise method to estimate CFM. See heater
installation manual for details.
All data shown is dry coil. For wet coil, add nothing for BCA(18,24); add .05" for BCA(30, 36); add .10" for BCA(42-60).
All units ship as low speed for cooling. For most jobs, 350 to 450 CFM per ton is desirable. Installer should select
cooling speed to match job requirement.
All units must rum at high speed when heating.
If heater kits are installed, external static pressure is not to exceed .50" w.c. Shaded region shows excessive external
static pressure with heater kits.
Blowers are not designed for free air delivery. See blower nameplate or specification sheet for minimum allowable
external static pressure.
UPFLOW OR HORIZONTAL LEFT
BHA24TB002A*** BHA24TB002A BHA30TB002A BHA36TB002A BHA42TB002A BHA48TB002A BHA60TB002A
Fan Only=600CFM Fan Only=600CFM Fan Only=600CFM Fan Only=600CFM Fan Only=600CFM Fan Only=950CFM Fan Only=950CFM
Cooling=600 CFM** Cooling=850 CFM** Cooling=1000 CFM** Cooling=1200 CFM** Cooling=1400 CFM** Cooling=1650 CFM** Cooling=1850 CFM**
Amps* Amps* Amps* Amps* Amps* Amps* Amps*
.10 0.25 0.55 0.65 0.80 0.95 1.20 1.40
.20
0.30 0.65 0.80 1.00 1.20 1.30 1.50
.30 0.40 0.70 0.95 1.10 1.25 1.40 1.90
.40
0.50 0.85 1.00 1.20 1.40 1.60 1.90
.50 0.50 0.90 1.05 1.30 1.55 1.80 2.20
.60
0.60 0.95 1.10 1.40 1.70 1.90 2.30
.70 0.60 1.00 1.15 1.45 1.75 2.00 2.50
COUNTERFLOW OR HORIZONTAL RIGHT
BHA24TB002A*** BHA24TB002A BHA30TB002A BHA36TB002A BHA42TB002A BHA48TB002A BHA60TB002A
Fan Only=600CFM Fan Only=600CFM Fan Only=600CFM Fan Only=600CFM Fan Only=600CFM Fan Only=1000CFM Fan Only=1000CFM
Cooling=600 CFM** Cooling=1000 CFM** Cooling=1200 CFM** Cooling=1400 CFM** Cooling=1400 CFM** Cooling=1750 CFM** Cooling=1950 CFM**
Amps* Amps* Amps* Amps* Amps* Amps* Amps*
.10
0.25 0.65 0.80 0.95 0.95 1.30 1.50
.20 0.30 0.80 1.00 1.20 1.20 1.40 1.60
.30 0.40 0.95 1.10 1.25 1.25 1.65 2.00
.40 0.50 1.00 1.20 1.40 1.40 1.75 2.00
.50 0.50 1.05 1.30 1.55 1.55 2.00 2.30
.60 0.60 1.10 1.40 1.70 1.70 2.10 2.40
.70 0.60 1.15 1.45 1.75 1.75 2.25 2.60
External
Static
" W.C.
Notes:
1.
Data shown without filters. Consult filter manufacturer for pressure drop to be added.
2.
Data shown without heater kits. If heater kits are installed, external static pressure is not to exceed maximum value shown
on blower nameplate. If heater kits are used, see installation instructions for speed tap and CFM information.
3.
All data shown is dry coil. See Note below marked with ** for instructions to check CFM in cooling mode.
4
. If unit has been in cooling mode, run unit in fan only mode for 5-10 minutes to ensure a dry coil.
External
Static
" W.C.
* Amperage of ECM motor
ONLY.
** Compressor
MUST NOT
be running when checking cooling CFM. Switch outdoor unit breaker
OFF
when thermostat is
calling for cooling.
*** BHA24TB used with RHD18.