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Product Data
Product Data
External Static Pressure & Air Flow
Capacity
Flow rate
(kBtu/h(RT))
(CFM)
High(1475)
54(4.5)
Middle(1400)
Low(1260)
High(1400)
48(4.0)
Middle(1260)
Low(1000)
High(1250)
42(3.5)
Middle(1100)
Low(1000)
High(990)
36(3.0)
Middle(880)
Low(800)
High(880)
30(2.5)
Middle(800)
Low(630)
High(710)
24(2.0)
Middle(640)
Low(480)
High(580)
18(1.5)
Middle(530)
Low(480)
High(530)
12(1.0)
Middle(480)
Low(380)
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.
30 Vertical Air Handling Unit
Setting Value @ ESP(in.wc)
0.1
0.2
0.3
77
82
87
74
79
84
67
75
80
74
79
84
67
75
80
56
65
72
67
75
80
61
67
75
56
65
72
80
85
90
65
72
80
65
69
77
65
72
80
62
69
77
53
65
70
56
67
74
53
65
70
53
55
64
53
60
68
53
58
66
53
55
64
53
58
66
53
56
64
53
54
62
0.4
0.5
0.6
93
98
102
91
96
102
87
90
98
91
96
102
87
90
98
77
84
90
87
90
98
80
87
92
77
84
90
95
100
103
85
92
98
82
90
96
85
92
98
82
90
96
75
85
91
78
87
94
75
85
91
70
79
84
74
84
85
72
82
84
70
79
83
72
82
84
70
79
83
69
77
83
0.7
0.8
0.9
110
115
115
110
115
115
102
110
115
110
115
115
102
110
115
98
105
108
102
110
115
100
108
110
98
105
108
103
103
103
103
103
103
101
101
101
103
103
103
101
101
101
96
96
96
98
98
98
96
96
96
92
92
92
95
95
95
92
92
92
92
92
92
92
92
92
92
92
92
92
92
92
1.0
115
115
115
115
115
115
115
115
115
103
103
101
103
101
96
98
96
92
95
92
92
92
92
92
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