Carrier 48AK Installation, Start-Up And Service Instructions Manual page 75

Single package rooftop units electric cooling/gas heating, with reciprocating compressor
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Table 29 — Fan Performance, 48EJ,EK048 — Vertical Discharge Units
(For EW,EY units, reduce net available external static pressure by 0.5 in. wg)
AIRFLOW
0.2
(Cfm)
Rpm
Bhp
Rpm
9,000
528
3.20
10,000
577
4.10
11,000
627
5.10
12,000
677
6.30
13,000
728
7.71
14,000
779
9.28
15,000
830
11.03
16,000
882
12.97
17,000
934
15.12
18,000
986
17.47
1010
19,000
1038
20.05
1061
20,000
1091
22.84
1112
AIRFLOW
1.8
(Cfm)
Rpm
Bhp
Rpm
9,000
839
7.10
10,000
866
8.40
11,000
897
9.70
12,000
930
11.30
13,000
965
13.04
14,000
1002
14.99
1028
15,000
1041
17.15
1066
16,000
1082
19.52
1105
17,000
1124
22.14
1146
18,000
1166
24.98
1188
19,000
20,000
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW
3.4
(Cfm)
Rpm
Bhp
9,000
1086
11.10
10,000
1102
12.44
11,000
1122
13.96
12,000
1144
15.66
13,000
1170
17.56
14,000
1198
19.66
15,000
16,000
17,000
18,000
19,000
20,000
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
Bhp
Rpm
Bhp
572
4.00
615
4.40
617
5.10
657
5.50
664
6.30
700
6.80
711
7.70
745
8.20
760
9.31
791
9.83
809
11.11
838
11.65
858
13.13
886
13.69
908
15.36
934
15.95
959
17.83
983
18.44
20.53
1033
21.16
23.49
1083
24.13
26.69
1133
27.36
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.0
2.2
Bhp
Rpm
Bhp
873
7.62
905
8.10
898
8.85
929
9.34
927
10.24
956
10.76
958
11.82
986
12.36
992
13.59
1019
14.15
15.56
1054
16.14
17.74
1090
18.34
20.14
1128
20.75
22.77
1168
23.40
25.63
3.6
3.8
Rpm
Bhp
Rpm
1114
11.61
1141
12.14
1129
12.97
1155
13.51
1147
14.51
1173
15.06
1169
16.23
1194
16.80
1194
18.14
0.8
1.0
Rpm
Bhp
Rpm
Bhp
656
4.90
695
5.30
694
6.00
731
6.40
735
7.30
769
7.70
778
8.70
809
9.20
822
10.35
851
10.88
867
12.20
895
12.75
913
14.26
939
14.83
960
16.54
985
17.13
1008
19.05
1031
19.66
1056
21.79
1078
22.42
1105
24.78
1126
25.44
1154
28.03
1174
28.70
2.4
2.6
Rpm
Bhp
Rpm
Bhp
937
8.59
968
9.08
959
9.85
989
10.36
985
11.28
1013
11.81
1014
12.90
1041
13.44
1045
14.71
1071
15.27
1079
16.71
1103
17.30
1114
18.93
1138
19.53
1151
21.37
1174
21.99
1190
24.03
LEGEND
Bhp — Brake Horsepower
NOTES:
1. Fan performance is based on wet coils, economizer, roof curb,
cabinet losses, and clean 2-in. filters.
Bhp
2. Conversion — Bhp to watts:
Watts =
Motor Efficiency
3. Variable Air Volume units will operate down to 70 cfm/ton. Per-
formance at 70 cfm/ton is limited to unloaded operation and
may be additionally limited by edb (entering dry bulb) and ewb
(entering wet bulb) conditions.
75
1.2
1.4
Rpm
Bhp
Rpm
Bhp
733
5.80
769
6.20
766
6.90
801
7.40
802
8.20
835
8.70
841
9.70
871
10.20
881
11.42
909
11.95
923
13.31
950
13.87
966
15.41
991
15.99
1010
17.73
1034
18.33
1055
20.28
1078
20.89
1101
23.06
1123
23.70
1147
26.09
1169
26.75
1195
29.37
2.8
3.0
Rpm
Bhp
Rpm
Bhp
999
9.57
1028
10.08
1018
10.87
1047
11.39
1041
12.34
1068
12.87
1067
13.99
1093
14.54
1096
15.84
1121
16.41
1127
17.88
1151
18.47
1161
20.13
1184
20.74
1196
22.61
Bhp x 746
1.6
Rpm
Bhp
805
6.70
834
7.90
866
9.20
901
10.80
938
12.50
976
14.43
1017
16.57
1058
18.93
1101
21.52
1145
24.34
1190
27.41
3.2
Rpm
Bhp
1057
10.58
1075
11.91
1095
13.41
1119
15.10
1146
16.98
1175
19.06

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