30 Vertical Air Handling Unit
Product Data
External Static Pressure & Air Flow
Product Data
Air handler units are UL Listed up to 0.5 in.wc external static pressure, including air filter, set coil, and largest
kW size heater, unless otherwise noted.
• Flow rate(CFM) is decreased by 3% per 0.1in.wc from 0.8 in.wc to 1.0 in.wc
• If flow rate(CFM) is increased by 400CFM/ton from 1.5RT to 2.5RT of capacity, the ESP value should be
increased by 4.
• If flow rate(CFM) is increased by 400CFM/ton from 3.0RT to 4.5RT of capacity, the ESP value should be
increased by 5.
• in.wc = inch Water Column, inAq
• Factory Default: High Static Pressure,
High static pressure is 0.5 in.wc,
Low static pressure is 0.3 in.wc
If you set ESP incorrectly, the air conditioner may cause cooling & heating capacity down or malfunction.
Capacity
(kBtu/h(RT))
Flow rate
(CFM)
Setting Value @ ESP(in.wc)
0.1 0.2 0.3 0.4 0.5
0.6 0.7 0.8 0.9 1.0
54(4.5)
High(1475) 77 82 87 93 98
102 110 115 115 115
Middle(1400) 74 79 84 91 96
102 110 115 115 115
Low(1260) 67 75 80 87 90
98 102 110 115 115
48(4.0)
High(1400) 74 79 84 91 96
102 110 115 115 115
Middle(1260) 67 75 80 87 90
98 102 110 115 115
Low(1000) 56 65 72 77 84
90 98 105 108 115
42(3.5)
High(1250) 67 75 80 87 90
98 102 110 115 115
Middle(1100) 61 67 75 80 87
92 100 108 110 115
Low(1000) 56 65 72 77 84
90 98 105 108 115
36(3.0)
High(990) 80 85 90 95 100
103 103 103 103 103
Middle(880) 65 72 80 85 92
98 103 103 103 103
Low(800) 65 69 77 82 90
96 101 101 101 101
30(2.5)
High(880) 65 72 80 85 92
98 103 103 103 103
Middle(800) 62 69 77 82 90
96 101 101 101 101
Low(630) 53 65 70 75 85
91 96 96 96 96
24(2.0)
High(710) 56 67 74 78 87
94 98 98 98 98
Middle(640) 53 65 70 75 85
91 96 96 96 96
Low(480) 53 55 64 70 79
84 92 92 92 92
18(1.5)
High(580) 53 60 68 74 84
85 95 95 95 95
Middle(530) 53 58 66 72 82
84 92 92 92 92
Low(480) 53 55 64 70 79
83 92 92 92 92
12(1.0)
High(530) 53 58 66 72 82 84 92 92 92 92
Middle(480) 53 56 64
70
79 83 92 92 92 92
Low(380) 53 54 62 69 77 83 92 92 92 92
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