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4/3/2025
Stock No.
52CD43
Job Name
:
Mark
:
Submitted By
:
Power Roof Ventilators
Variable Speed Electronically Commutated (EC) Ventilator
Aluminum backward inclined, nonoverloading centrifugal wheel design
Maximum inlet air temperature: 130º F
NEMA 1 junction box located in motor enclosure
Optional NEMA 1 and 4 disconnects available
High-efficiency brushless DC motor
UL/cUL 705 Listed for Power Ventilators
GREEN Product
Variable Speed capable of 80% turn down at a minimum of 85% efficiency at all speeds
Meets Minimum & Optimize Energy Performance
A
B
C
D
26 in
28 3/8 in
23 3/4 in
4 in
Performance Characteristics
(No Fan Curve Available.)
Construction Features
Impeller Diameter (Typ.)
14 3/4 in
Impeller Type
Backward Inclined Centrifugal
Impeller Material
Aluminum
Max Inlet Temp
130 °F
Warranty Length
1 Year
Air & Sound Performance
Motor HP
Max BHP
Fan RPM
CFM @
0.000'' SP
0.125'' SP
0.250'' SP
0.375'' SP
0.500'' SP
0.625'' SP
0.750'' SP
0.875'' SP
1.000'' SP
1.250'' SP
1.500'' SP
1.750'' SP
2.000'' SP
2.250'' SP
2.500'' SP
2.750'' SP
3.000'' SP
3/4
0.08
1020
CFM
808
746
676
595
489
323
—
—
—
—
—
—
—
—
—
—
—
Sones
8.1
7.6
7.1
6.5
6.3
6.5
—
—
—
—
—
—
—
—
—
—
—
3/4
0.39
1725
CFM
1366
1328
1291
1252
1213
1173
1132
1085
1035
932
785
588
—
—
—
—
—
Sones
17.6
17.3
17.0
16.7
16.2
15.9
15.6
15.2
14.8
14.3
14.3
15.0
—
—
—
—
—
3/4
0.82
2200
CFM
1742
1713
1683
1654
1623
1593
1562
1532
1500
1436
1360
1281
1200
1089
969
834
616
Sones
24.0
23.0
23.0
23.0
23.0
23.0
22.0
22.0
22.0
22.0
21.0
21.0
21.0
21.0
19.9
20.0
22.0
Agency Compliance
AMCA Sound & Air
UL/cUL 705