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York Predator DF 090 - Additional Static Resistance Df078, 120; Additional Static Resistance Df090, 102; Performance

York Predator DF 090
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246699-YTG-D-1208
30 Johnson Controls Unitary Products
TABLE 26: ADDITIONAL STATIC RESISTANCE DF078, 120
CFM
Cooling Only
*
Economizer
Electric Heat KW
9 18243654
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 27: ADDITIONAL STATIC RESISTANCE DF090, 102
CFM
Cooling Only
*
Economizer
Electric Heat KW
918243654
1900 -0.004 0.07 0.05 0.06 0.07 0.08 0.1
2100 0.01 0.09 0.06 0.07 0.08 0.09 0.11
2300 0.01 0.11 0.07 0.08 0.09 0.1 0.13
2500 0.02 0.13 0.08 0.09 0.1 0.11 0.14
2700 0.03 0.16 0.09 0.1 0.12 0.13 0.16
2900 0.04 0.18 0.1 0.11 0.13 0.14 0.18
3100 0.05 0.20 0.12 0.13 0.15 0.16 0.2
3300 0.06 0.22 0.13 0.14 0.17 0.18 0.22
3500 0.07 0.24 0.15 0.16 0.19 0.2 0.24
3700 0.08 0.27 0.17 0.18 0.21 0.22 0.26
3900 0.09 0.29 0.19 0.2 0.23 0.24 0.28
4100 0.09 0.31 0.21 0.22 0.25 0.26 0.31
4300 0.10 0.33 0.23 0.24 0.28 0.29 0.34
* Deduct 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.

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