21
ARBOR BASE SERIES INSTALLATION MANUAL
Setting Blower Speed - PSC
CAUTION: Disconnect all power before performing
this operation.
PSC BLOWER MOTOR BODY
HIGH
LOW
MEDIUM
F
A
N
S
P
E
E
D
W
IR
E
Blower Performance Data
Factory settings are in Bold
Airfl ow values are with dry coil and standard fi lter
For wet coil performance fi rst calculate the face velocity of the air coil (Face Velocity [fpm] = Airfl ow [cfm] / Face Area [sq ft]).
Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12 in. wg. and 500 fpm by 0.16 in. wg.
* Setting for 265V operation.
Standard PSC Motor
Model
Blower
Blower
Motor
Airfl ow (cfm) at External Static Pressure (in. wg)
Spd
Size
HP
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.60
0.70
0.80
0.90
1.00
006
H
6 x 8
1/10
435
425
415
405
390
365
340
325
305
290
275
245
-
-
-
-
MH
400
390
380
370
355
335
310
295
280
265
255
210
195
-
-
-
ML*
365
355
345
335
315
300
280
270
255
240
230
195
-
-
-
-
L
320
305
295
280
260
250
235
225
210
195
180
150
135
-
-
-
009
H
6 x 8
1/10
435
423
415
405
390
370
340
325
305
290
275
245
-
-
-
-
MH
400
388
380
370
355
335
310
295
280
265
255
210
195
-
-
-
ML*
365
353
345
335
315
300
280
270
255
240
230
195
-
-
-
-
L
320
305
295
280
260
250
235
225
210
195
180
150
135
-
-
-
012
H
6 x 8
1/10
435
423
415
405
390
370
340
325
305
290
275
245
-
-
-
-
MH
400
388
380
370
355
335
310
295
280
265
255
210
195
-
-
-
ML*
365
353
345
335
315
300
280
270
255
240
230
195
-
-
-
-
L
320
305
295
280
260
250
235
225
210
195
180
150
135
-
-
-
015
H
9 x 7
1/6
795
775
755
735
715
690
670
600
530
490
455
395
-
-
-
-
M
725
710
695
675
660
640
620
560
495
465
435
375
-
-
-
-
L
620
610
600
590
575
550
525
490
455
395
340
290
-
-
-
-
018
H
9 x 7
1/6
795
775
755
735
715
690
670
600
530
490
455
395
-
-
-
-
M
725
710
695
675
660
640
620
560
495
465
435
375
-
-
-
-
L
620
610
600
590
575
550
525
490
455
395
340
290
-
-
-
-
024
H
9 x 7
1/5
1035
1015
995
970
950
925
900
865
835
795
760
685
560
-
-
-
M
880
860
845
820
805
785
765
740
720
690
665
590
530
-
-
-
L
810
790
775
755
740
725
705
675
650
620
595
510
-
-
-
-
030
H
9 x 7
1/3
1170
1145
1130
1110
1080
1050
1030
995
965
925
890
815
700
-
-
-
M
1040
1030
1020
1005
990
965
945
915
890
860
830
760
650
-
-
-
L
825
820
815
810
805
795
790
775
765
735
705
655
-
-
-
-
036
H
9 x 7
1/2
1320
1295
1275
1240
1210
1185
1155
1120
1085
1045
1005
915
805
655
-
-
M
1180
1155
1140
1125
1100
1075
1055
1020
990
955
920
840
725
590
-
-
L
1045
1035
1025
1015
1005
985
970
945
920
890
865
795
690
-
-
-
041
H
9 x 7
1/3
1140
1115
1090
1060
1030
1000
975
940
905
865
830
750
353
-
-
-
M
1025
1000
980
955
935
910
885
850
820
780
745
670
475
-
-
-
L
935
920
905
885
865
845
825
795
770
740
710
565
-
-
-
-
042
H
10x10
1/2
1530
1500
1475
1445
1425
1380
1340
1290
1240
1185
1130
810
715
630
-
-
M
1435
1415
1395
1370
1350
1325
1300
1265
1235
1180
1130
1040
755
640
-
-
L
1160
1140
1130
1120
1100
1070
1050
1020
990
950
910
831
632
590
-
-
048
H
10 x 10
1/2
1845
1810
1775
1740
1705
1660
1615
1560
1510
1455
1405
1275
1080
-
-
-
M
1655
1620
1585
1555
1535
1500
1465
1415
1370
1330
1290
1170
970
-
-
-
L
1325
1315
1310
1285
1265
1245
1220
1180
1140
1115
1090
990
-
-
-
-
060
H
11 x 10
1
2345
2320
2305
2285
2250
2205
2180
2135
2090
2060
2030
1945
1850
1740
1600
1465
M
2195
2170
2150
2125
2105
2075
2045
2005
1970
1940
1915
1845
1770
1630
1500
-
L
2045
2030
2020
1995
1980
1950
1925
1890
1855
1825
1800
1750
1640
1535
1395
-
070
H
11 x 10
1
2505
2475
2450
2410
2385
2365
2340
2305
2275
2250
2230
2170
2070
1975
1880
1765
M
2290
2265
2250
2230
2200
2170
2150
2135
2125
2105
2085
2015
1950
1865
1785
1680
L
2115
2100
2085
2060
2040
2020
2005
1990
1975
1950
1930
1875
1805
1720
1655
1510
10/15/15
Summary of Contents for Arbor Base Series
Page 2: ......
Page 48: ...48 ARBOR BASE SERIES INSTALLATION MANUAL Notes...