SQ 70-75- Direct Drive

1

(25)

*878

(225)

12

(305)

12

13

(305) (330)

Damper size = 9 x 9 (229 x 229)

Unit weight** = 26 (12)

Housing thickness = 20 ga

Outlet velocity = 1.828 x cfm

Dimensions shown in inches (millimeters) and weight is shown in pounds (kilograms).

*May be greater depending on motor.

**Weight shown is largest cataloged Open Drip Proof motor.

Static Pressure Pa

110

100

90

80

70

60

50

40

30

20

10

0

 

0.45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RPM

 

 

 

0.40

 

 

 

 

 

 

 

 

Density 0.075 lb/ft3

 

 

0.35

 

 

 

 

 

SQ

 

 

 

 

wg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

0.30

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

in.

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

SQ

 

 

 

 

Pressure

 

 

 

 

 

 

 

 

 

 

0.25

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

75-

 

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

SQ

 

 

 

 

 

 

0.20

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

SQ

70

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

Static

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

70

75

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

0.15

 

 

SQ-

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

0.10

 

 

SQ

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

75

 

 

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

0.05

 

 

 

 

 

 

 

 

 

 

 

 

0.000

50

100

 

150

 

200

250

300

350

400

 

 

 

 

 

 

 

 

cfm

 

 

 

 

 

0

100

200

 

 

300

400

500

600

 

 

 

 

 

 

 

 

 

m3/hr

 

 

 

 

Model Number

Motor

Fan

 

 

 

 

CFM / Static Pressure in Inches wg

 

 

 

HP

RPM

 

0

0.1

0.125

 

0.15

0.2

0.25

0.3

 

0.35

0.375

0.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

212

140

118

 

86

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ-70-E

1/100

1050

BHP

0.008

0.009

0.009

 

0.009

 

 

 

 

 

 

 

 

 

 

Sones

2.7

1.7

1.5

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

262

204

190

 

176

139

77

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ-70-G

1/50

1300

BHP

0.015

0.018

0.018

 

0.018

0.017

0.015

 

 

 

 

 

 

 

 

Sones

4.1

3.4

3.3

 

3.1

2.9

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

313

265

252

 

240

216

189

155

 

99

67

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ-70-D

1/30

1550

BHP

0.026

0.029

0.03

 

0.03

0.03

0.03

0.029

 

0.026

0.025

 

 

 

 

Sones

5.6

5.2

5.1

 

5.1

4.9

4.7

4.5

 

4.2

4.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

241

167

146

 

123

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ-75-E

1/100

1050

BHP

0.01

0.011

0.011

 

0.01

 

 

 

 

 

 

 

 

 

 

Sones

3.6

2.9

2.8

 

2.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

298

239

224

 

209

176

133

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ-75-G

1/50

1300

BHP

0.019

0.021

0.021

 

0.021

0.02

0.019

 

 

 

 

 

 

 

 

Sones

4.1

3.7

3.7

 

3.7

3.6

3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

356

306

294

 

281

256

229

201

 

164

137

99

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ-75-D

1/30

1550

BHP

0.032

0.034

0.035

 

0.035

0.035

0.035

0.034

 

0.033

0.032

0.029

 

 

 

Sones

6.1

5.5

5.4

 

5.3

5.1

4.9

4.9

 

4.8

4.8

4.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Performance certified is for installation type B: Free inlet, Ducted outlet. Performance ratings do not include the effects of appurtenances (accessories).

The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B: free inlet hemispherical fan sone levels.

12

Page 12
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Greenheck Fan manual SQ 70-75- Direct Drive

SQ specifications

The Greenheck Fan SQ series represents an innovative line of high-performance fans designed to meet diverse ventilation and exhaust needs in commercial and industrial applications. Renowned for their reliability and efficiency, the SQ fans embody Greenheck's commitment to providing advanced air movement solutions that enhance indoor air quality and energy efficiency.

One of the standout features of the Greenheck Fan SQ series is its powerful centrifugal design, which maximizes airflow while minimizing energy consumption. The fans are engineered to deliver high static efficiency, making them ideal for systems that require substantial airflow against high resistive pressures. This capability ensures optimal performance in various settings, from large commercial kitchens to manufacturing facilities.

The SQ series incorporates several advanced technologies that set it apart from traditional fans. First, the fans utilize a direct drive system, eliminating the need for belts and pulleys. This design not only reduces maintenance needs but also enhances overall operational reliability. The fans also feature an integrated motor design that optimizes airflow patterns and reduces energy waste, contributing to lower operational costs.

In terms of construction, Greenheck SQ fans are built to withstand the rigors of demanding environments. The housing is constructed from sturdy, corrosion-resistant materials, ensuring longevity even in challenging conditions. Additionally, the fans are available in various sizes and configurations, allowing for custom solutions tailored to specific ventilation requirements.

The SQ series also incorporates advanced sound attenuating technologies, making them quieter than many conventional fans. This is particularly beneficial in environments where noise reduction is essential, such as school auditoriums, offices, and healthcare facilities.

Furthermore, the SQ fans are equipped with easily accessible inspection ports, facilitating routine maintenance and ensuring sustained performance over time. Greenheck also offers a range of options, including variable speed controls, which provide flexibility in managing airflow based on real-time demands.

In summary, the Greenheck Fan SQ series stands out as a leader in efficient, reliable ventilation solutions. Its advanced design features, energy-saving technologies, and robust construction make it an ideal choice for a variety of commercial and industrial applications, helping users achieve optimal performance while prioritizing energy efficiency and indoor air quality.