York AHR18B3XH21 Technical Manual page 11

1055361-BTG-D-0514
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AIR FLOW DATA (CFM) (Continued)
Models
AHR42C
AHR48D
AHR60D
1. Air handler units have been tested to UL 1995 / CSA 22.2 standards up to 0.30" wc. external static pressure.
Dry coil conditions only, tested without filters.
For optimal performance, external static pressures of 0.2" to 0.5" are recommended. Applications above 0.6" are not recommended.
Airflow data shown is from testing performed at 230V. AHE units use a X13 motor, and there is minimal variation of airflow at other distribution voltage values. The
above data can be used for airflow at other distribution voltages.
Johnson Controls Unitary Products
Blower
Motor Speed
0.10
High 1750
Medium 1590
Low 1330
High 2005
Medium 1705
Low 1355
High 2034
Medium 1733
Low 1388
External Static Pressure (in. wc.)
0.20 0.30 0.40
230 Volt
1670 1570 1477
1520 1435 1277
1280 1200 1083
1940 1850 1755
1665 1605 1510
1330 1300 1245
1955 1858 1753
1672 1609 1527
1359 1313 1255
0.50 0.60 0.70
1260 1125 935
1150 1010 870
980 850 NA
1650 1530 1405
1425 1340 1185
1170 990 980
1640 1522 1296
1431 1272 1220
1133 1004 912
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