York DM150 - Manual (Page 37)

127408-YIM-B-0606
Unitary Products Group 37
TABLE 39: ADDITIONAL STATIC RESISTANCE 50” CABINET (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
5300 0.42 0.06 0.35 0.37 0.41 0.43 0.49
5500 0.45 0.06 0.38 0.40 0.44 0.46 0.53
5700 0.48 0.06 0.41 0.43 0.47 0.49 0.56
5900 0.52 0.07 0.44 0.46 0.50 0.53 0.59
6100 0.56 0.07 0.47 0.49 0.53 0.56 0.62
6300 0.60 0.07 0.50 0.53 0.56 0.59 0.65
*. 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 40: ADDITIONAL STATIC RESISTANCE 42” CABINET (IMPERIAL)
CFM Cooling Only
*
Economizer
† ‡
1900 -0.004 0.07
2100 0.01 0.09
2300 0.01 0.11
2500 0.02 0.13
2700 0.03 0.16
2900 0.04 0.18
3100 0.05 0.20
3300 0.06 0.22
3500 0.07 0.24
3700 0.08 0.27
3900 0.09 0.29
4100 0.09 0.31
4300 0.10 0.33
*. 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.