AIR DELIVERY
CFM
EXTERNAL STATIC PRESSURE (in. wg)
0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
5500 923 1.88 1002 2.13 1075 2.35 1143 2.58 1208 2.80 1271 3.01 1334 3.24 1394 3.49
6000 993 2.36 1066 2.63 1135 2.88 1200 3.12 1260 3.36 1320 3.59 1378 3.82 — —
6500 1064 2.92 1131 3.21 1197 3.48 1259 3.74 1318 4.00 ——————
7000 1136 3.55 1199 3.86 ————————————
LEGEND
Bhp — Brake horsepower
NOTES:
1. — Alternate drive required.
2.
indicates maximum capability of standard drive.
3. Maximum allowable fan speed is 1550 rpm.
4. Fan performance is based on wet coil and clean 2-in. filters. Casing
losses have been deducted.
5. Electric heater pressure drop must be accounted for in fan rpm and
bhp section (see Static Pressure Losses table on page 11).
6. Minimum cfm for units with electric resistance heat: 5650 cfm.
Converting Bhp to Watts:
Bhp x 746
Watts input =
Motor Efficiency
Approximate Motor Efficiency: .81
AIR DELIVERY USING ACCESSORY POWER EXHAUST
HORIZONTAL SUPPLY/RETURN FAN PERFORMANCE
WITH 389210-201 HIGH STATIC REGAIN ADAPTER
NOTE: The 389210-201 high static regain adapter accessory may
be used to provide horizontal supply/return.
NOTE: The 389210-201 horizontal supply/return adapter accessory
improves 542F180 fan performance by increasing external static
pressure by amount shown above.
10
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