J801X Installation Manual
22
Table 4. Blower Data for J801X070B Models
HEATING AIRFLOW (CFM) & TEMPERATURE RISE (°F)
MODEL NAME/
HEATING INPUT
J801X*U
RETURN
AIR VIA:
MOTOR
SPEED
External Static Pressure (in. w.c.)
0.1 0.2 0.3 0.4 0.5
CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE
J801X070B
70,000 BTU/Hr
Bottom
5 - High*
4 - Alternate
3 - Medium High
2 - Med-Low** 1,130 46 1,070 48 1,010 51 960 54 890 58
1 - Low*** 820 63 730 630 570 540
Side
5 - High*
4 - Alternate
3 - Medium High
2 - Med-Low** 1,090 48 1,020 51 970 53 920 56 860 60
1 - Low*** 740 680 620 560 510
COOLING AIRFLOW (CFM)
MODEL NAME/
HEATING INPUT
J801X*U
RETURN
AIR VIA:
MOTOR
SPEED
External Static Pressure (in. w.c.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM CFM CFM CFM CFM CFM CFM CFM
J801X070B
70,000 BTU/Hr
Bottom
5 - High* 1,790 1,740 1,690 1,640 1,590 1,540 1,490 1,440
4 - Alternate 1,650 1,590 1,560 1,500 1,450 1,400 1,350 1,290
3 - Medium High 1,395 1,340 1,290 1,235 1,190 1,130 1,070 1,010
2 - Med-Low** 1,130 1,070 1,010 960 890 820 770 720
1 - Low*** 820 730 630 570 540 490 430 380
Side
5 - High* 1,740 1,700 1,660 1,610 1,550 1,510 1,460 1,400
4 - Alternate 1,610 1,550 1,510 1,460 1,410 1,360 1,310 1,250
3 - Medium High 1,350 1,295 1,245 1,185 1,140 1,085 1,035 985
2 - Med-Low** 1,090 1,020 970 920 860 800 750 700
1 - Low*** 740 680 620 560 510 450 410 360
*NOTES:
1. Special consideration should be taken in duct design, evaporator coil selection / pressure drop, and air filter selection to achieve 350 CFM/
ton at 0.5” external static pressure.
2. To comply with government mandated efficiency standards, two openings are required for airflows above 1,600 CFM.
3. Data is shown without filter.
4. Temperature rises in the table are approximate. Actual temperature rises may vary.
5. Individual cells shaded in gray indicate a temperature rise outside of the recommended range.
6. To comply with government mandated efficiency standards, speed settings shaded in gray are not allowed in HEAT mode.
7. The * denotes the factory COOL setting, ** denotes the factory HEAT setting, and *** denotes factory FAN setting. If the Alternate speed is
to be used, the speed tap must be adjusted at the blower motor plug.










