Carrier 50EJQ Installation, Start-Up And Service Instructions Manual page 25

50EJQ,EWQ024 AND 028 (20 and 25 Tons)
Low Speed
Airflow
208 v
(Cfm)
ESP Bhp Watts
6,500 0.32 2.82 3160
6,700 0.23 2.87 3220
6,900 0.17 2.92 3270
7,100 0.13 2.93 3290
7,300 0.09 2.97 3330
7,500 — — —
7,700 — — —
7,900 — — —
8,100 — — —
8,500 — — —
8,900 — — —
9,300 — — —
9,700 — — —
10,100 — — —
10,500 — — —
10,900 — — —
11,300 — — —
11,700 — — —
LEGEND
Bhp — Brake Horsepower
ESP — External Static Pressure (in. wg)
Watts — Input Watts to Motor
Nominal
Hp
5
7.5
10
15
Nominal
Hp
5
7.5
10
15
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.
Table 12 — Fan Performance — Power Exhaust
230, 460
ESP Bhp Watts ESP
0.70 2.98 3340 —
0.63 3.03 3400 0.60
0.59 3.09 3460 0.55
0.56 3.11 3490 0.49
0.53 3.15 3530 0.43
0.51 3.19 3580 0.39
0.48 3.23 3620 0.33
0.45 3.27 3670 0.27
0.40 3.33 3730 0.22
— — — 0.17
— — — 0.00
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
Table 13 — Motor Limitations
STANDARD EFFICIENCY MOTORS
Maximum
Bhp
230
5.9 14.6
5.9 —
8.7 22.0
9.5 —
10.2 28.0
11.8 —
15.3 43.8
18.0 —
HIGH EFFICIENCY MOTORS
Maximum
Bhp
230
5.9 15.8
5.9 —
8.7 22.0
9.5 —
10.2 28.0
11.8 —
15.3 43.8
18.0 —
Medium Speed
208 v 230, 460
Bhp Watts ESP Bhp Watts
— — — —
3.01 3380 0.82 3.23 3620
3.07 3440 0.78 3.28 3680
3.12 3500 0.73 3.34 3740
3.18 3560 0.68 3.39 3800
3.24 3630 0.64 3.44 3860
3.27 3670 0.59 3.48 3900
3.32 3720 0.54 3.52 3950
3.36 3770 0.49 3.57 4000
3.47 3890 0.40 3.67 4120
3.58 4010 0.30 3.77 4230
— — 0.22 3.87 4340
— — 0.16 3.95 4430
— — 0.12 4.03 4520
— — — —
— — — —
— — — —
— — — —
Maximum Amps
460
—
7.9
—
12.0
—
14.6
—
21.9
Maximum Amps
460
—
7.9
—
12.0
—
15.0
—
21.9
25
High Speed
208 v
ESP Bhp Watts ESP
— — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
0.60 3.69 4140 0.73
0.56 3.74 4190 0.69
0.51 3.78 4240 0.65
0.41 3.83 4290 0.56
0.31 3.93 4410 0.47
0.20 4.07 4560 0.37
0.11 4.17 4670 0.30
0.04 4.25 4770 0.23
— — — — 0.17
— — — — 0.12
— — — — 0.07
— — — — 0.04
Maximum
Watts
5,030
5,030
7,334
8,008
8,502
9,836
12,543
14,756
Maximum
Watts
4,918
4,918
7,078
7,728
8,298
9,600
12,273
14,439
230, 460
Bhp Watts
— —
— —
— —
— —
— —
— —
3.98 4460
4.02 4510
4.07 4560
4.12 4620
4.23 4740
4.37 4900
4.47 5010
4.56 5110
4.66 5220
4.75 5330
4.80 5380
4.8 3 5420
Motor
Efficiency
87.5
87.5
88.5
88.5
89.5
89.5
91.0
91.0
Motor
Efficiency
89.5
89.5
91.7
91.7
91.7
91.7
93.0
93.0