Payne PA1Z Installation, Start-Up And Service Instructions Manual page 15

UNIT MOTOR
PA1Z SPEED DELIVERY
Low
024 Med
High
Low
030 Med
High
Low
036 Med
High
Low
042 Med
High
Low
048
High
Low
060† Med
High
*Air delivery values are based on operating voltage of 230 v or 460 v,
dry coil, without filter or electric heater. Deduct wet coil, filter, and elec-
tric heater pressure drops to obtain external static pressure available
for ducting. See Tables 5-7.
†460-v motors have 2 speeds (size 060 only).
Table 5 — Wet Coil Pressure Drop
UNIT SIZE AIRFLOW
PA1Z (cfm)
600
700
024
800
900
900
030 1000
1200
1000
1200
036
1400
1600
1000
1200
042
1400
1600
1400
048 1600
1800
1700
1800
060
2100
2300
Table 4 — Dry Coil Air Delivery* — Horizontal Discharge
(Deduct 10% for 208 Volt Operation)
AIR
0.1 0.2
Watts 288 285
CFM 875 820
Watts 390 383
CFM 1131 1090
Watts 528 520
CFM 1391 1338
Watts 288 285
CFM 875 820
Watts 390 383
CFM 1131 1090
Watts 528 520
CFM 1891 1338
Watts 450 435
CFM 1231 1218
Watts 470 450
CFM 1302 1264
Watts 660 635
CFM 1700 1660
Watts 478 458
CFM 1303 1270
Watts 481 468
CFM 1310 1280
Watts — 798
CFM — 1736
Watts — —
CFM — —
Watts — —
CFM — —
Watts 890 850
CFM 1834 1820
Watts 1040 1018
CFM 2230 2102
Watts 1073 1038
CFM 2230 2202
PRESSURE DROP
(in. wg)
0.02
0.05
0.06
0.07
0.06
0.06
0.08
0.07
0.09
0.11
0.12
0.04
0.06
0.08
0.09
0.07
0.08
0.09
0.07
0.08
0.09
0.10
230 AND 460 VOLT HORIZONTAL DISCHARGE
External Static Pressure (in. wg)
0.3 0.4 0.5
282 279 274
802 734 668
378 369 360
1038 978 917
510 495 480
1285 1200 1115
282 279 274
802 734 668
378 369 360
1038 978 917
510 495 480
1285 1200 1115
420 400 380
1204 1120 1008
445 410 388
1205 1163 1081
610 575 540
1581 1450 1297
440 411 378
1224 1179 1126
450 438 404
1241 1181 1110
678 647 618
1688 1618 1510
801 760 730
1898 1841 1757
870 842 818
2000 1903 1799
810 790 735
1791 1762 1703
1000 950 890
2025 1960 1901
1001 958 896
2160 2122 2052
NOTES:
1. Do not operate the unit at a cooling airflow that is less than 350 cfm
for each 12,000 Btuh of rated cooling capacity. Evaporator-coil frost-
ing may occur at airflows below this point.
2. Dashes indicate portions of the table that are beyond the blower
motor capacity or are not recommended.
Table 6 — Filter Pressure Drop (in. wg)
FILTER
UNIT SIZE
SIZE
PA1Z
(in.)
024-042 24 × 24 0.06 0.07 0.08 0.08 0.09
048,060 24 × 30
FILTER
UNIT SIZE
SIZE
PA1Z
(in.)
024-042 24 × 24 0.10
048,060 24 × 30
FILTER
UNIT SIZE
SIZE
PA1Z
1900 2000 2100 2200 2300
(in.)
024-042 24 × 24
048,060 24 × 30 0.14 0.15 0.16 0.17 0.18
—15—
0.6 0.7 0.8
268 261 —
582 478 —
350 340 —
830 721 —
460 450 —
1018 920 —
268 261 —
582 478 —
350 340 —
830 721 —
460 450 —
1018 920 —
335 326 311
950 863 751
359 338 321
940 873 783
505 485 460
1190 1095 989
350 327 317
1022 911 816
370 338 320
1022 943 811
578 540 500
1421 1309 1187
688 650 600
1682 1564 1429
782 696 632
1718 1625 1446
680 580 480
1640 1415 1159
835 790 650
1855 1752 1468
840 800 691
1926 1791 1588
CFM
500 600 700 800 900
— — — — —
CFM
1200 1300 1400 1500 1600 1700 1800
0.11 0.12 0.14 0.15
— 0.08 0.09 0.10 0.11
CFM
— — — — —
0.9
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
460
1060
570
1365
628
1333
422
950
580
1121
575
1202
1000 1100
0.09 0.09
— —
— —
0.12 0.13