Table 12 — Fan Performance — Power Exhaust
50EJQ,EWQ024 AND 028 (20 and 25 Tons)
Airflow
(Cfm)
Low Speed Medium Speed High Speed
208 v 230, 460 208 v 230, 460 208 v 230, 460
ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts
6,500 0.32 2.82 3160 0.70 2.98 3340 — — — — — — — — — — — —
6,700 0.23 2.87 3220 0.63 3.03 3400 0.60 3.01 3380 0.82 3.23 3620 — — — — — —
6,900 0.17 2.92 3270 0.59 3.09 3460 0.55 3.07 3440 0.78 3.28 3680 — — — — — —
7,100 0.13 2.93 3290 0.56 3.11 3490 0.49 3.12 3500 0.73 3.34 3740 — — — — — —
7,300 0.09 2.97 3330 0.53 3.15 3530 0.43 3.18 3560 0.68 3.39 3800 — — — — — —
7,500 — — — 0.51 3.19 3580 0.39 3.24 3630 0.64 3.44 3860 — — — — — —
7,700 — — — 0.48 3.23 3620 0.33 3.27 3670 0.59 3.48 3900 0.60 3.69 4140 0.73 3.98 4460
7,900 — — — 0.45 3.27 3670 0.27 3.32 3720 0.54 3.52 3950 0.56 3.74 4190 0.69 4.02 4510
8,100 — — — 0.40 3.33 3730 0.22 3.36 3770 0.49 3.57 4000 0.51 3.78 4240 0.65 4.07 4560
8,500 — — — — — — 0.17 3.47 3890 0.40 3.67 4120 0.41 3.83 4290 0.56 4.12 4620
8,900 — — — — — — 0.00 3.58 4010 0.30 3.77 4230 0.31 3.93 4410 0.47 4.23 4740
9,300 — — — — — — — — — 0.22 3.87 4340 0.20 4.07 4560 0.37 4.37 4900
9,700 — — — — — — — — — 0.16 3.95 4430 0.11 4.17 4670 0.30 4.47 5010
10,100 — — — — — — — — — 0.12 4.03 4520 0.04 4.25 4770 0.23 4.56 5110
10,500 — — — — — — — — — — — — — — — 0.17 4.66 5220
10,900 — — — — — — — — — — — — — — — 0.12 4.75 5330
11,300 — — — — — — — — — — — — — — — 0.07 4.80 5380
11,700 — — — — — — — — — — — — — — — 0.04 4.8 3 5420
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure (in. wg)
Watts — Input Watts to Motor
Table 13 — Motor Limitations
STANDARD EFFICIENCY MOTORS
Nominal
Hp
Maximum
Bhp
Maximum Amps
Maximum
Watts
Motor
Efficiency
230 460
5
5.9 14.6 — 5,030 87.5
5.9 — 7.9 5,030 87.5
7.5
8.7 22.0 — 7,334 88.5
9.5 — 12.0 8,008 88.5
10
10.2 28.0 — 8,502 89.5
11.8 — 14.6 9,836 89.5
15
15.3 43.8 — 12,543 91.0
18.0 — 21.9 14,756 91.0
HIGH EFFICIENCY MOTORS
Nominal
Hp
Maximum
Bhp
Maximum Amps
Maximum
Watts
Motor
Efficiency
230 460
5
5.9 15.8 — 4,918 89.5
5.9 — 7.9 4,918 89.5
7.5
8.7 22.0 — 7,078 91.7
9.5 — 12.0 7,728 91.7
10
10.2 28.0 — 8,298 91.7
11.8 — 15.0 9,600 91.7
15
15.3 43.8 — 12,273 93.0
18.0 — 21.9 14,439 93.0
LEGEND
BHP — Brake Horsepower
NOTE: Extensive motor and electrical testing on the Carrier units has ensured that the full
horsepower range of the motor can be utilized with confidence. Using your fan motors up
to the horsepower ratings shown on the Motor Limitations table will not result in nuisance
tripping or premature motor failure. Unit warranty will not be affected.
25
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