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PERFORMANCE DATA (cont)
ACCESSORY/FIOP STATIC PRESSURE (in. wg)* — 581A155,180
LEGEND *The static pressure must be added to external static pressure. The sum and
the evaporator entering-air cfm should then be used in conjunction with the
Fan Performance tables to determine blower rpm and watts.
INDOOR SOUND DATA (TOTAL UNIT) — 581A155,180
EVAPORATOR FAN MOTOR PERFORMANCE — 581A155,180
LEGEND
FAN RPM AT MOTOR PULLEY SETTINGS* — 581A155,180
*Approximate fan rpm shown.
†Indicates standard drive package.
**Indicates alternate drive package.
††Due to belt and pulley style, pulley cannot be set to this number of turns open.
COMPONENT
CFM
4500 5000 5400 6000 7200 7500 9000 10,000 11,250
EconoMi$er IV 0.040 0.050 0.060 0.070 0.090 0.100 0.110 0.120 0.140
FIOP — Factory-Installed Option
UNIT 581A
SOUND
RATING-dB
(60 Hz)
A-WEIGHTED
(dB)
SOUND POWER (dB)
Octave Bands
63 125 250 500 1000 2000 4000 8000
155 87 87.3 87.1 89.9 86.4 84.0 82.7 79.0 73.9 68.6
180 88 88.0 95.7 88.9 87.2 85.2 91.9 79.5 72.7 66.0
UNIT 581A NOMINAL HP VOLTAGE MAX WATTS EFF. % MAX BHP MAX BkW MAX AMPS
155
(Standard Motor)
2.9 208 2700 85.8 3.13 2.34 9.46
2.9 230 2700 85.8 3.13 2.34 8.6
2.9 460 2700 85.8 3.13 2.34 4.3
3 575 3065 81.7 3.38 2.53 3.9
155
(Optional Motor)
3.7 208 3610 85.8 4.38 3.27 10.5
3.7 230 3610 85.8 4.38 3.27 10.5
3.7 460 3610 85.8 4.38 3.27 4.8
180
5 208 5180 87.5 6.13 4.57 15.8
5 230 5180 87.5 6.13 4.57 15.8
5 460 5180 87.5 6.13 4.57 7.9
5 575 5180 87.5 6.13 4.57 6.0
BHP — Brake Horsepower
BkW — Brake Kilowatts
UNIT
581A
MOTOR PULLEY TURNS OPEN
0
1
/
2
11
1
/
2
22
1
/
2
33
1
/
2
44
1
/
2
55
1
/
2
6
155† 1147 1124 1101 1078 1055 1032 1010 987 964 941 918 895 ††
155** 1315 1292 1269 1246 1223 1200 1178 1155 1132 1109 1086 1063 1040
180† †† †† †† †† 1021 1002 984 965 947 928 910 891 873
180** †† †† †† †† 1200 1178 1156 1134 1112 1091 1069 1047 1025