84
RT-SVX34R-EN
Table 55.
Power exhaust fan performance — 22.9 -
29.2 Ton — 50 Hz
Return
Duct Static
(Pa)
Power Exhaust Selection
50% (min)
100% (max)
Damper Blade Open Distance (mm)
(min)
(max)
(min)
(max)
L/s
0.0
1499
2701
2999
5405
24.9
1375
2083
2751
4166
49.8
1255
1753
2488
3540
74.7
1134
1499
2269
3003
99.6
1031
1321
2061
2643
124.5
921
1135
1842
2270
Table 56.
Power exhaust fan performance — 33.3 -
41.7 Ton — 50 Hz
Return Duct
Static (Pa)
Power Exhaust Selection
50% (min)
100% (max)
Damper Blade Open Distance
(mm)
(min)
(max)
(min)
(max)
L/s
0.0
1909
3160
3818
6321
24.9
1800
2915
3599
5829
49.8
1676
2537
3364
5308
74.7
1577
2371
3155
4741
99.6
1462
2173
2925
4347
124.5
1364
2040
2727
4080
Figure 54.
(Upflow) Exhaust damper actuator
adjustment
Damper Actuator Adjustment
Figure 55.
(Horizontal) Exhaust damper actuator
adjustment
Damper Actuator
Adjustment
Figure 56.
(Upflow) Exhaust maximum damper
position
Less Exhaust
More Exhaust
Figure 57.
(Horizontal) Exhaust maximum damper
position
Less Exhaust
More Exhaust
Economizer Damper Adjustment
Economizer (O/A) Dampers
Arbitrarily adjusting the outside air dampers to open
fully when the return air dampers are fully closed can
overload the supply fan motor or deliver higher CFM to
the space than designed. This causes higher operating
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