Acme Engineering PL Installation Manual

CONSTRUCTION FEATURES

Model PL belt drive fan is a downblast centrifugal power roof ventilator designed for exhausting clean air. Capacities
range from 635 to 31,810 CFM and up to 1 inch static pressure. The PL is built to be quieter than conventional
exhausters. In fact, they are quieter than many conventional exhausters with sound curbs. For this reason PL
exhausters are suitable for all types of commercial and institutional buildings such as schools, hospitals, office buildings
and retail stores requiring low noise levels.

Hood

Full 360° perimeter
outlet area for efficient
performance. Hinged
to permit easy
accessibility and
servicing.

Motor

All motors are
continuous duty type
and have lubricated
shielded ball bearings.
The motor is mounted
on special slide rails
that help maintain
correct belt drive
alignment. Factory
wired to junction box.

Aluminum Construction

Heavy gauge aluminum hoods, housing and
base provide durable, weather protected
construction.

Drive Assembly

Cast iron drives sized for
150% of drive horsepower
with static free, oil and
heat resistant belts.

Frame

The entire weight of
the motor, impeller,
drive assembly and
hood is carried by a
rugged structural
frame that transmits
load directly to the roof
curb.

Disconnect Switch

Factory installed disconnect
switch is standard.

Aluminum Hollow Airfoil Impeller

All exhausters have backward curved non-overloading
aluminum impellers with the hollow airfoil blades.
Impellers are precision balanced for smooth, vibration
free operation. Hollow airfoil blades produce a
centrifugal impeller having high performance with lower
air noise, and at less horsepower.

Bearings

Permanently lubricated in a duplex split pillow block housing. Bearings are resiliently
mounted in neoprene rings and rated at L
limited warranty on duplex split pillow block bearings (unitary pillow block bearings
standard on PL368-543).

life of 200,000 hours. There is a 5 year

50

Bird Screen (not shown)
Constructed of .50” x 1.00” mesh
heavy gauge galvanized steel
wire.

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PERFORMANCE DATA

Fan

Model

PL135E1

PL135E2

PL135E3

PL135E4

PL135E5

PL135F

PL145E1

PL145E2

PL145E3

PL145F

PL163E1

PL163E2

PL163F

PL163G

PL171E1

PL171E2

PL171F

PL171G

PL200E1

PL200E2

PL200F

PL200G

PL223E1

PL223E2

PL223F

PL223G

PL245E

PL245F

PL245G

PL245H

PL270E

PL270F

PL270G

PL270H

Performance shown is for installation type A: Free inlet, Free Outlet.
Performance ratings do not include the effects of appurtenance in the airstream.
The sound ratings shown are loudness values in fan sones at 5 feet (1.524m) in a
hemispherical free field calculated per AMCA Standard 301. Values shown are
for Installation Type A: Free Inlet fan Sone levels.

Sones

RPM

@

HP

1/8” SP

474

5.4 1/4

712 950 .02 660 .02
657

7.3 1/4

987 1320 .05 1100 .06 900 .06 585 .06
835

9.9 1/4

1228 1640 .10 1460 .11 1295 .11 1135 .12 930 .13 575 .11

917

10.8 1/4

1376 1840 .13 1675 .14 1525 .16 1385 .17 1230 .18 1045 .18 750 .16
1032

14.1 1/4

1548 2070 .19 1925 .20 1780 .23 1655 .24 1535 .25 1395 .25 1240 .25 700 .20
1327

16.0 1/3

1720 2299 .26 2140 .28 2040 .29 1920 .30 1805 .31 1700 .33 1575 .34 1270 .35

752

9.6 1/4

1075 1760 .11 1590 .12 1395 .13 1150 .13 760 .12

786

11.3 1/4

1180 1930 .14 1770 .15 1610 .17 1410 .17 1155 .17 745 .15

918

14.4 1/4

1376 2250 .28 2120 .24 1980 .25 1830 .27 1660 .28 1455 .28 1180 .26
1130

17.1 1/3

1522 2490 .31 2370 .32 2250 .33 2120 .35 1970 .36 1810 .37 1630 .37 1090 .32

658

9.9 1/4

988 2325 .15 2100 .17 1850 .18 1560 .19 1145 .17 385 .12
741

11.3 1/4

1110 2610 .21 2420 .23 2200 .24 1960 .26 1690 .26 1305 .25 700 .20

835

13.9 1/3

1229 2890 .29 2720 .31 2530 .32 2325 .34 2100 .35 1855 .36 1505 .34 290 .20

934

16.6 1/2

1425 3350 .45 3210 .47 3045 .49 2875 .51 2695 .53 2505 .54 2290 .55 1745 .53

609

9.5 1/4

896 2450 .15 2185 .17 1935 .18 1590 .18 1030 .16
700

9.8 1/4

1029 2815 .22 2585 .25 2360 .27 2130 .28 1815 .28 1370 .27 550 .18

742

11.4 1/3

1110 3035 .28 2825 .31 2610 .33 2410 .34 2155 .35 1835 .34 1370 .31

817

14.3 1/2

1247 3410 .40 3220 .43 3025 .45 2845 .48 2660 .49 2435 .50 2160 .49 1280 .41

499

8.6 1/4

727 2605 .16 2290 .17 2025 .18 1750 .19 1410 .19
530

9.3 1/4

820 2940 .23 2660 .24 2410 .25 2170 .27 1930 .28 1630 .28 1115 .24
632

10.8 1/3

906 3245 .31 2980 .32 2750 .33 2540 .35 2325 .36 2110 .37 1850 .37
710

16.4 1/2

1049 3584 .47 3380 .49 3205 .51 3030 .52 2880 .54 2715 .55 2530 .57 2080 .58

393

6.8 1/4

590 2870 .15 2490 .16 2128 .17 1585 .17
430

8.0 1/4

674 3280 .22 2940 .23 2635 .25 2280 .26 1740 .25
478

9.8 1/3

749 3645 .30 3335 .31 3055 .34 2775 .35 2440 .36 1885 .35
574

12.1 1/2

860 4183 .45 3910 .47 3660 .50 3425 .50 3170 .53 2880 .54 2500 .54
368

7.3 1/4

577 3920 .21 3450 .23 3020 .25 2580 .26 1945 .25
442

9.3 1/3

638 4335 .29 3900 .31 3510 .33 3130 .35 2710 .36 2010 .34
466

10.8 1/2

713 4845 .40 4455 .43 4095 .44 3750 .47 3415 .49 3045 .50 2505 .49
545

14.8 3/4

831 5650 .64 5300 .67 4980 .69 4680 .72 4400 .74 4110 .77 3800 .79 3020 .78
327

6.9 1/4

491 4225 .21 3695 .24 3210 .26 2535 .26
368

8.0 1/3

532 4580 .27 4090 .30 3635 .32 3125 .33 1855 .29
405

9.8 1/2

606 5215 .40 4785 .43 4370 .46 3980 .48 3505 .49 2625 .46
486

12.7 3/4

688 5922 .59 5540 .62 5160 .65 4820 .68 4470 .71 4050 .72 3470 .72

.000” .125” .250” .375” .500” .625” .750” 1.000” Est.

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP

635 .01

878 .01 545 .02

1115 .03 865 .04 575 .04

1225 .04 990 .05 755 .05 250 .04

1380 .06 1165 .06 975 .07 725 .07

1775 .12 1605 .13 1450 .14 1310 .15 1140 .16 920 .16 545 .13

1230 .04 970 .04 500 .04

1285 .04 1040 .05 650 .05

1500 .07 1300 .08 1040 .08 600 .07

1850 .13 1690 .14 1510 .15 1290 .15 990 .14 440 .11

1545 .04 1185 .05 540 .05

1740 .06 1430 .07 950 .08

1965 .09 1695 .10 1370 .11 865 .10

2195 .13 1960 .14 1685 .15 1355 .16 800 .13

1665 .05 1280 .06 470 .04

1915 .06 1580 .07 1150 .06

2030 .08 1715 .10 1345 .11 570 .08

2235 .11 1945 .13 1650 .14 1190 .12 130 .07

1790 .05 1370 .06 815 .06

1900 .06 1500 .07 1100 .08

2265 .10 1910 .11 1610 .12 1225 .13

2545 .15 2230 .16 1960 .17 1675 .18 1260 .17

1910 .04 1345 .05

2090 .06 1585 .07

2325 .08 1865 .09 1250 .09

2790 .13 2400 .15 2025 .16 1375 .16

2500 .06 1805 .07

3005 .10 2410 .11 1820 .12

3170 .11 2600 .13 2060 .14

3705 .18 3200 .20 2770 .21 2265 .22

2815 .06 2045 .08

3170 .09 2490 .11 835 .06

3485 .12 2855 .14 2130 .15

4183 .21 3645 .23 3151 .25 2437 .25

CFM and BHP vs. Static Pressure

The brake horsepower capability of an exhauster motor is dependent on the
degree of cooling the motor receives from the air moving through the motor.
The motor loading beyond the motor nameplate rating does not overheat
the motor and is in accordance with the motor manufacturer’s
recommendations. It is therefore not detrimental to the motor and is
economically desirable. Power rating (BHP) does not include drive losses.

Ship

Wt.

83

83

83

83

84

87

83

83

84

87

100

101

104

111

100

101

104

111

194

195

198

203

196

197

200

205

210

213

220

223

213

216

223

226

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