132
RT-SVX36G-EN
Unit Start Up
Economizer Damper Adjustment
Exhaust Air Dampers
Verify that the exhaust dampers (if equipped) close tightly when the unit is off. Adjust the damper
linkage as necessary to ensure proper closure. An access panel is provided under each damper
assembly.
Fresh Air & Return Air Damper Operation
The fresh air and return air damper linkage is accessible from the filter section of the unit. The
damper linkage connecting the fresh air dampers to the return air dampers is preset from the
factory in the number 1 position. Refer to
for the appropriate linkage position for the unit
and operating airflow (CFM).
Note:
Bridging between the unit's main supports may consist of multiple 2 by 12 boards or sheet
metal grating.
Arbitrarily adjusting the fresh air dampers to open fully when the return air dampers are closed or;
failing to maintain the return air pressure drop with the fresh air dampers when the return air
Table 47. Return fan performance—60, 70, 75 tons AC; 73, 80, 89 tons EC (36.5” fan)
CFM
Negative Static Pressure
Std.
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Air
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000
459
1.07
502
1.59
541
2.13
578
2.71
613
3.31
647
3.91
681
4.54
713
5.20
13000
490
1.27
530
1.83
567
2.40
603
3.01
636
3.65
668
4.29
700
4.94
731
5.64
14000
520
1.49
560
2.09
595
2.70
628
3.34
660
3.99
691
4.69
721
5.38
751
6.10
15000
552
1.73
590
2.38
623
3.03
655
3.70
686
4.39
715
5.11
744
5.85
771
6.59
16000
583
2.00
619
2.70
652
3.39
682
4.09
712
4.82
740
5.57
767
6.34
794
7.14
17000
615
2.30
650
3.05
681
3.78
710
4.52
739
5.28
766
6.06
792
6.85
818
7.67
18000
646
2.64
680
3.43
711
4.20
739
4.98
766
5.78
792
6.60
817
7.41
842
8.27
19000
678
3.01
711
3.85
741
4.67
768
5.48
794
6.31
819
7.16
844
8.03
867
8.89
20000
711
3.42
742
4.30
771
5.17
797
6.02
823
6.90
847
7.77
871
8.66
894
9.59
21000
743
3.87
773
4.78
801
5.70
827
6.60
852
7.51
875
8.41
898
9.36
920
10.30
22000
775
4.36
805
5.31
832
6.28
857
7.22
881
8.17
904
9.11
926
10.09
947
11.06
23000
808
4.89
836
5.88
863
6.90
887
7.89
911
8.88
933
9.87
954
10.86
975
11.88
24000
840
5.46
868
6.49
894
7.56
918
8.60
941
9.63
962
10.67
983
11.71
1004
12.75
25000
873
6.08
900
7.15
925
8.26
948
9.35
970
10.42
992
11.49
1012
12.59
1032
13.67
26000
906
6.75
931
7.86
956
9.00
979
10.16
1001
11.28
1021
12.37
1041
13.49
1061
14.63
27000
939
7.47
963
8.62
987
9.79
1010
11.01
1031
12.18
1052
13.33
1071
14.47
1090
15.65
Notes:
1.
Max fan RPM 1151 for 36.5" Class I Fan
2.
Max motor available 20 HP for 36.5" fan size
3.
Max motor available 20 HP for 60, 70 & 75T/ 73, 80 & 89T
4.
Max CFM is 27000 for 60, 70 & 75T/ 73, 80 & 89T
5.
Min CFM is 12000 for 60, 70 & 75T/ 73, 80 & 89T
6.
Return fan belt drive RPM selections will be available to cover 500-1100 RPM range +/- 50 RPM
7.
Performance data includes cabinet and rain hood effect. Damper pressure drop will have to be added to return duct static per table
Table 40, p. 126
WARNING
No Step Surface!
Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the
supporting metal to collapse, resulting in the operator/technician to fall. Failure to follow this
recommendation could result in death or serious injury.
Содержание IntelliPak SAHL Series
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