Specification Sheet

11
Air
Airflow Performance Data
RH1P- Series
External Static Pressure—Inches W.C. [kPa]
PSC CFM [L/s] Air Delivery/RPM/Watts—240 Volts
RPM 834
Blower Size/
Motor
HP [W]
# of Speed
6024ST
with 30 kW
Heater
870
Motor
Speed
from
Factory
902
Manufacturer
Recommended
Air-Flow Range
(Min/Max) CFM
Motor
Speed
948 968 — —
Watts 560 549 535 476 462 — —
10x10
1/2 HP [373]
2 Speed
High
CFM — — — — 1537 [725] 1418 [669] 1334 [630]
RPM
0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17]
— — — — 1072 1077
RPM 838 883 922 959 1001 — —
1085
Model
No.
RH1P
4221ST
No Heater
4221ST
with 20 kW
Heater
4821ST/
4824ST
No Heater
3617ST/
3621ST
with 18 kW
Heater
Watts 446 442 407 386 375 — —
10x8
1/3 HP [249]
2 Speed
4821ST/
4824ST
with 25 kW
Heater
RPM
High
240V
1241/1537 CFM
[586/725 L/s]
High
CFM — — — — 1148 [542] 1094 [516] 1033 [487]
Low
CFM 1526 [720] 1474 [696] 1427 [673] 1307 [617]
RPM — — — — 1033 1053 1067
1241 [586] — —
Watts — — — — 860 835 820
RPM 886 906
6024ST
No Heater
925 959 992
839
— —
865 890 913
Watts 542 524 505 468 431 — —
10x10
1/2 HP [373]
2 Speed
High
CFM
935 —
— — — — 1437 [678] 1318 [622] 1234 [582]
RPM — — — — 1080 1090 1105
—
Watts 745 729 713 696 678
High
240V
1225/1500 CFM
[553/678 L/s]
Low
CFM 1456 [687] 1404 [663] 1357 [640] 1237 [584] 1171 [553] — —
Watts — — — — 840 800 785
RPM 807 840 914 941 989 — —
Watts 601 589 553 541 507 — —
10x10
3/4 HP [559]
2 Speed
High
CFM — — — — 1787 [843] 1679 [792] 1575 [743]
RPM — — — — 1089 1098 1110
— —
11x11
3/4 HP [559]
2 Speed
High
CFM — —
High
240V
1455/1787 CFM
[687/843 L/s]
Low
CFM 1560 [736] 1550 [731] 1543 [728] 1510 [713] 1455 [687] — —
Watts
— — — — 695 665 630
RPM 857 897 937 974 1011 — —
Watts 581 569 533 521 487 — —
10x10
3/4 HP [559]
2 Speed
High
CFM — — — — 1687 [796] 1579 [745] 1475 [696]
RPM — — —
—
—
High
240V
1095
1054/1148 CFM
[497/542 L/s]
Low
CFM 1179 [556] 1151 [543] 1120 [529] 1091 [515] 1054 [497] — —
1107 1120
— 1865 [880] 1808 [853] 1754 [828]
Watts — — — — 458 445 424
RPM — —
High
240V
1225/1500 CFM
[709/814 L/s]
Low
CFM 1490 [703] 1480 [698] 1473 [695] 1440 [680] 1385 [654] — —
Watts
— — — — 670 635 615
RPM 764 803 838 865 889 — —
Watts 779 763 747 729 708 — —
11x11
3/4 HP [559]
2 Speed
High
CFM — — — — 1965 [927] 1908 [900] 1854 [875]
RPM — — — — 943 967 977
— — 987 1001 1014
High
240V
1225/1500 CFM
[709/814 L/s]
High
240V
1766/1965 CFM
[833/927 L/s]
Low
CFM 1944 [917] 1912 [902] 1860 [878] 1813 [856] 1766 [833] — —
Watts
— — — — 828 799 795
Low
CFM 1844 [870] 1812 [855] 1760 [831] 1713 [808] 1666 [786] — —
Watts — — — — 788 766 744
240V Airflow Performance Data—RH1P- (PSC Motor)
Notes: • All 208/240V PSC motors have voltage taps for 208 and 240 volts.
• All 208/240V PSC motors are shipped on high speed and 240 volts.
• If the application external static is less than 0.5" WC, adjust the motor speed to the low static speed as described below:
• Unplug the black motor wire off the relay on the control board and plug in the red motor wire.
• Replace the cap on the black motor wire.
• Voltage change (208/240V motors):
• Move the orange lead to transformer 208V tap from 240V tap. Replace the wire cap on 240V tap.
• Unplug the purple motor wire off the transformer and plug in the yellow motor wire.
• Replace the cap on the purple motor wire.
• The above airflow table lists the airflow information for air handlers without heater and air handler with maximum heater allowed for each model.
• The following formula can be used to calculate the approximate airflow, if a smaller (N kW) than the maximum heater kit is installed.
Approximate Airflow = Airflow without heater - (Airflow without heater - Airflow with maximum heater) x (N kW/maximum heater kW)
[ ] Designates Metric Conversions