York PREDATOR BP 090 User Manual
Page 24
259336-YTG-B-0606
24
Unitary Products Group
TABLE 31: ADDITIONAL STATIC RESISTANCE - IMPERIAL
CFM
Cooling Only
*
Economizer
†
‡
Electric Heat KW
†
9
18
24
36
54
1900
0.06
0.02
0.05
0.06
0.07
0.08
0.10
2100
0.07
0.02
0.06
0.07
0.08
0.09
0.11
2300
0.08
0.02
0.07
0.08
0.09
0.10
0.13
2500
0.09
0.02
0.08
0.09
0.10
0.11
0.14
2700
0.11
0.03
0.09
0.10
0.12
0.13
0.16
2900
0.12
0.03
0.10
0.11
0.13
0.14
0.18
3100
0.14
0.03
0.12
0.13
0.15
0.16
0.20
3300
0.16
0.03
0.13
0.14
0.17
0.18
0.22
3500
0.18
0.04
0.15
0.16
0.19
0.20
0.24
3700
0.20
0.04
0.17
0.18
0.21
0.22
0.26
3900
0.23
0.04
0.19
0.20
0.23
0.24
0.28
4100
0.25
0.04
0.21
0.22
0.25
0.26
0.31
4300
0.28
0.05
0.23
0.24
0.28
0.29
0.34
4500
0.30
0.05
0.25
0.26
0.30
0.31
0.37
4700
0.33
0.05
0.28
0.29
0.33
0.34
0.40
4900
0.36
0.05
0.30
0.31
0.35
0.37
0.43
5100
0.39
0.06
0.33
0.34
0.38
0.40
0.46
*
Add these resistance values to the available static resistance in the respective Blower Performance Tables.
†
Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.
‡
The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return
air duct system is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation.
TABLE 32: ADDITIONAL STATIC RESISTANCE - METRIC
M
3
S
Cooling Only
*
Economizer
†
‡
Electric Heat kW
†
9
18
24
36
54
0.89
14.9
5.0
12.4
14.9
17.4
19.9
24.8
0.99
17.4
5.0
14.9
17.4
19.9
22.4
27.3
1.08
19.9
5.0
17.4
19.9
22.4
24.8
32.3
1.18
22.4
5.0
19.9
22.4
24.8
27.3
34.8
1.27
27.3
7.5
22.4
24.8
29.8
32.3
39.7
1.36
29.8
7.5
24.8
27.3
32.3
34.8
44.7
1.46
34.8
7.5
29.8
32.3
37.3
39.7
49.7
1.55
39.7
7.5
32.3
34.8
42.2
44.7
54.6
1.65
44.7
9.9
37.3
39.7
47.2
49.7
59.6
1.74
49.7
9.9
42.2
44.7
52.2
49.7
64.6
1.83
57.1
9.9
47.2
49.7
57.1
59.6
69.5
1.93
62.1
9.9
52.2
54.6
62.1
64.6
77.0
1.02
69.5
12.4
57.1
59.6
69.5
72.0
84.4
2.12
74.5
12.4
62.1
64.6
74.5
77.0
91.9
2.21
82.0
12.4
69.5
72.0
82.0
84.4
99.3
2.30
89.4
12.4
74.5
77.0
86.9
91.9
106.8
2.40
96.9
14.9
82.0
84.4
94.4
99.3
114.2
*
Add these resistance values to the available static resistance in the respective Blower Performance Tables.
†
Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.
‡
The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return
air duct system is less than 62.1 Pa, the unit will deliver less M3S during full economizer operation.