Table 34: additional static resistance (metric) – York PREDATOR DM150 User Manual
Page 30
036-21044-003-A-0304
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Unitary Products
TABLE 34: ADDITIONAL STATIC RESISTANCE (METRIC)
M
3
S
Cooling Only
1
Economizer
2
3
Electric Heat kW
2
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
2.49
104.3
14.9
86.9
91.9
101.8
106.8
121.7
2.59
111.8
14.9
94.4
99.3
109.3
114.2
131.6
2.68
119.2
14.9
101.8
106.8
116.7
121.7
139.1
2.77
129.1
17.4
109.3
114.2
124.2
131.6
146.5
2.87
139.1
17.4
116.7
121.7
131.6
139.1
154.0
2.96
149.0
17.4
124.2
131.6
139.1
146.5
161.4
1. Add these resistance values to the available static resistance in the respective Blower Performance Tables.
2. Deduct these resistance values from the available external static pressure shown in the respective Blower Performance Table.
3. 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.
TABLE 35: ELECTRIC HEAT MINIMUM SUPPLY AIR
- IMPERIAL
HEATER
UNIT MODEL SIZE, NOMINAL TONS
kW
VOLTAGE
7.5
10
12.5
MINIMUM SUPPLY AIR CFM
9
380/415
2250
N/A
N/A
18
2250
3000
3750
24
2250
3000
3750
36
2250
3000
3750
54
N/A
3000
3750
TABLE 36: ELECTRIC HEAT MINIMUM SUPPLY AIR
- METRIC
HEATER
UNIT MODEL SIZE, NOMINAL TONS
kW
VOLTAGE
7.5
10
12.5
MINIMUM SUPPLY AIR M
3
S
9
380/415
1.06
N/A
N/A
18
1.06
1.42
1.76
24
1.06
1.42
1.76
36
1.06
1.42
1.76
54
N/A
1.42
1.76