Greenheck Fan SQ-BSQ User Manual

Centrifugal Inline Fans

Models SQ and BSQ

Direct and Belt Drive

®

April

2012

Models SQ and BSQ

Centrifugal Square Inline Duct Fans

Table of Contents

Standard Construction Features . . .	.		4-5	Typical Installation . . . . . . . . . . 14
Vari-Green Motor & Control Options .	.		6-7	Model Number Code .			. . . . . . . . 14
Options and Accessories . . . . .	.	.	.8	Direct Drive . . . . . . . . . . . 15-23
Filter Options . . . . . . . . . . . . .9				Belt Drive . .	. . .	. . . . . . . 24-45
Discharge Configurations . . . . .	. 10-11			Specifications	. . .	. . . . . . . 46-47
Mounting Options . . . . . . . .	.	.	12	Quick Delivery	. . .	.	. .	. .	. . . .48
Isolators . . . . . . . . . . . .	.	.	13	Warranty . .	. . .	.	. .	. .	. . . .48

Greenheck Fan Corporation certifies the model SQ and BSQ fans shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and Publication 311 and comply with the requirements of the AMCA Certified Ratings Program. The certified ratings for models SQ and BSQ are shown on pages 15 to 45.

UL is optional and must be specified. SQ and BSQ models are Listed for Electrical (UL/cUL 705) File no. E40001

2

Models SQ and BSQ

Centrifugal Square Inline Duct Fans

Model Comparison

Location

Mounting

Airflow

Application

Drive

Impeller

Performance

Type

Type

CostRelative

Model

Outdoor

Indoor

CurbRoof

Base/Floor

Hanging

Wall

MountedCeiling

Exhaust

Supply

Reversible

Recirculate

AirGeneral/Clean

AirContaminated

ResistantSpark

762)(ULGrease

ControlSmoke(UL)

(150WindHighmph)

(aboveTempHigh200°F )

Belt

Direct

Centrifugal

Propeller/Axial

FlowMixed

VolumeMaximum (cfm)

StaticMaximumPressure wg)(in.

SQ























5,000

2

$

BSQ























27,200

4

$

Greenheck’s model SQ and BSQ centrifugal inline fans feature a unique combination of installation flexibility, rugged construction, ease of service, high efficiency and low sound levels. These compact inline fans are the ideal selection for indoor clean air applications including intake, exhaust, return or make-up air systems where space is a prime consideration. The need for costly square to round transition pieces is eliminated reducing installation costs. The square housing design, compact size and straight-thru airflow also give the system designer the flexibility to mount SQ and BSQ fans in any configuration - horizontal, vertical or at any angle.

•Broadest performance in the industry, up to 4 in. wg (1,000 Pa) and 28,000 cfm (47,000 m3/hr).

•Performance as cataloged is assured. All fan sizes are tested in our AMCA Accredited Laboratory, and all models are licensed to bear the AMCA Sound and Air Performance seals.

•UL Listed for Electrical.

•These Greenheck products are subjected to extensive life testing to assure the fans will provide many years of reliable performance.

Over the years Greenheck has listened to your needs and input to remain the industry leader.

•Each fan is tested at the factory prior to shipping. The test includes vibration check, adjusting RPM and maximum amp draw.

•Each fan displays a permanently stamped metal nameplate with complete model number, mark and unique serial number for future identification.

•Packaged-product is tested in accordance with ISTA (International Safe Transit Association) standards and procedures.

Turn to our inline fans to meet your requirements for applications in office buildings, schools and hospitals to name a few.

3

Standard Construction Features

Model SQ Direct Drive

3

5

4

2

1

Model BSQ Belt Drive

5

2

9

7

4

3

6

8

1

4

Standard Construction Features

1 Cabinet Construction

The fan housing is constructed of rigid structural members and formed galvanized steel panels. (Aluminum construction is optional in all SQ sizes 60 160 and in BSQ sizes 70 300).

2 Drive Frame

Constructed from heavy-gauge steel.

7 Drive Assembly

Drives are sized for a minimum of 150 percent of driven horsepower. Machined cast iron pulleys are factory set to the required RPM and adjustable for final system balancing. Belts are static free and oil resistant. Belt adjustment is accomplished by loosening fasteners, sliding the motor plate and retightening fasteners.

3 Wheel

An aluminum, backward inclined, nonoverloading centrifugal wheel is utilized to deliver maximum efficiency. Each wheel is statically and dynamically balanced.

4 Duct Collars

Inlet and discharge duct collars are provided for easy duct connection. The square design provides a larger discharge area than tubular centrifugal and vane axial fans; outlet velocities are reduced for quieter operation.

5 Motor

Permanently lubricated, sealed ball bearing motors are selected to provide years of trouble-free operation with minimal maintenance.

6 Bearings

100 percent factory tested bearings are designed specifically for air handling applications with a minimum L10 life in excess of 100,000 hours (L50 average life in excess of 500,000 hours).

8 Fan Shaft

Fan shafts are precisely sized, ground and polished so the first critical speed is at least 25 percent over the maximum operating speed.

Close tolerances where the shaft makes contact with bearings result in longer bearing life.

9 Disconnect Switch

NEMA-1 disconnect switch is factory-mounted and wiring is provided from the motor as standard. All wiring and electrical components comply with the National Electric Codes and materials are UL Listed. Other NEMA enclosure disconnect switches are optional.

Access Panels (not shown on images)

The cabinet construction features two removable access panels permitting easy access to all interior components.

5

Vari-Green® Options

Vari-Green® Motor - Model SQ

Greenheck’s electronically commutated (EC)

Vari-Green (VG) motor
combines motor
technology, controllability
and energy-efficiency into
one single low maintenance	®

unit and is the industry’s first

fully controllable motor. When combined with Greenheck’s SQ fans, all the CFM and static pressure ranges of a belt drive can be attained with the benefits of a direct drive.

The Vari-Green motor is available in:

•1/6 - 3/4 horsepower 115 volt only.

•1 horsepower 115/208-230 volt.

•2 horsepower 208-230 volt.

All motors are available in a 50/60 Hz power.

Benefits

Operates on AC power that’s converted to DC— providing a more efficient motor operation as compared to an AC operation.

•The motor can attain up to 85% efficiency and reduce energy consumption.

•Watt savings of 30-70% depending on RPM. Note: As motor speed is turned down, efficiency stays high as compared to an AC motor that decreases dramatically.

•Operates cooler than a standard AC motor at lower RPMs. A cooler motor has longer motor life and reduces energy consumption.

•80% usable RPM turndown vs. 30%. (chart at right)

•SQ fans with Vari-Green motors can provide all the CFM and static pressure ranges of a comparable belt drive.

•Maintenance costs are reduced as there are no belts or bearings to replace and no pulleys to adjust.

•Direct drive fans are often preferred where maintenance access is difficult.

•The Vari-Green provides a solution for demand controlled ventilation applications.

Vari-Green Advantages

•Initial cost is similar to a belt drive

•Lower operating cost

•No maintenance, no belts, pulleys or bearings

•Easy RPM adjustment

Features

1.Dial on Motor Control - A potentiometer (dial on motor control) is mounted on the motor for easy speed adjustment for system balance. Simply turn the dial there are no belts and pulleys to adjust.

2.Control Wire Inputs - the motor 0-10V DC signal from Building Systems, Vari-Green Controls controls to adjust motor speed

1	2

Comparisons: Belt, Direct Drive with PSC and Direct Drive with Vari-Green

Motor Turndown Comparison

	600				50%				75%	100%
	500						SQ-120			
										
(WATTS)	400						with PSC	
									
	300				Not recommended			Energy Savings		
POWER					BSQ-120				
	200				Single Phase*
INPUT									
	100								SQ-120 with
						
					
	0		
	0	350			FAN SPEED (RPM)					1750

* BSQ is a belt driven fan

The length of each curve indicates the practical turndown range. Data is for 1/2 hp motors with load of 0.35 Bhp at full speed

Constant Volume Life Cycle Analysis

Three Year Cost Comparison

$2,500

2,250

2,000

1,750

1,500

1,250

1000

750

500

250

$0

BSQ-	SQ-	SQ-
120	120-A5	120-VG

Initial Cost

Maintenance cost over three years Operating cost over three years

Analysis is based on operating costs for a period of three years where the fans

operate continuously at 1725 rpm, 24/7, with an energy

rate of $0.10/kWh. Maintenance on the SQ-120 is estimated at $65/yr.

Note: Example is based on a relative cost. Use and installation variables may produce different results.

6

Vari-Green® Options

Demand Control Ventilation for

Multistory Buildings

Applications requiring constant pressure or variable volume can utilize SQ fans with Vari-Green motors

	and Vari-Green controls.
	Demand control
		Variable Volume
	ventilation systems	Operating Cost Analysis
	reduce the amount		Variable Volume vs. Constant Volume
			$2,000
	of energy used by
			1,750
	decreasing the speed of
		1,500
	the fan when demand
			1,250
	is low. This in turn
	lessens the amount		1000
	of conditioned air		750
	exhausted and further		500
	reduces total operating		250
	costs associated with		$0
	air conditioning and			Variable	Constant
	heating in multistoried			Volume	Volume
			Heating Cost
	buildings such as: hotels,
			Cooling Cost
	multifamily complexes,
			Fan Operating Cost
	institutional facilities,	Example of potential savings
	and high rise commercial
		based on a northeast city in
	buildings.	the USA using Vari-Green

components for variable volume.

Vari-Green® Controls

Transformer - Provides 24V power from the existing line voltage at the fan to the Vari-Green motor and controls. Dual voltage primary (120/240V) transformer provided with the fan.

Remote Dial - Allows for remote, manual airflow adjustments. Wall plate with dial may be mounted in a standard 2x4 inch electrical junction box.

Two Speed Control with Integral Transformer

Control allows motor rpm to be set at two independent speeds (high or low). Meets minimum airflow requirements with the ability to bump up to high speed in emergency or meet maximum airflow requirements, or reset down to low for energy conservation.

Constant Pressure Control-Indoor - Control VariGreen motor via static (variable volume) or velocity (constant CFM) pressure on the inlet or outlet side of the fan. Optional, one or two, duct or room probes for use in:

•Multifamily structures - Apartments, condos, hotels; dryers, residential kitchens and bathrooms.

•Institutional facilities - Schools, prisons, multistory office buildings; bathrooms.

The Vari-Green constant pressure control is preprogramed and easy to install for applications that include: venting dryers, bathrooms, residential type kitchen space or industrial process exhaust.

Contact [e-mail] for more information.

Daily Operating Comparison: Variable Volume and Constant Volume

									Hypothetical (Hotel Bathroom)
	Operation							Variable Volume - Load Shape
		10080$$$$$$$$$$$$$$$$$$$$$$$$
		60$$$$$$$$$$$$$$$$$$$$$$$$
		40$$$$$$$$$$$$$$$$$$$$$$$$
		20$$$$$$$$$$$$$$$$$$$$$$$$
	of	$$$$$$$$$$$$$$$$$$$$$$$$
	%	0%	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
											Time of Day
				Series 1

Demand controlled ventilation offers significant energy savings by exhausting only the necessary amount of air throughout the day.

Operation								Constant Volume - Load Shape
	100
	80
	60
	40
of	20
	0%
%		1	2	3	4	5		6	7	8	9	10		11		12		13		14		15		16		17	18	19		20		21		22		23		24
											Time of Day
			Series 2

Note: A standard VFD compatible motor can also function within a variable volume system.

Constant Pressure Control-Outdoor

(previously referred to as GreenVent)

Control Vari-Green motor via static pressure on the inlet side of the fan. Includes one duct probe and transducer for use in:

•Multifamily structures - Apartments, condos, hotels; residential kitchen, dryer facilities and bathrooms.

•Institutional facilities - Schools, prisons, multistory.

Air Quality – VOC - Control a Vari-Green motor via changes in volatile organic compounds (VOC’s). VOC’s are gasses that are emitted from humans, building materials, perfumes, foods, and furniture off-gassing. Range is 0-2000 CO2 ppm equivalent.

•Institutional facilities – Schools, court house, hospitals; bathrooms, waiting rooms, cafeteria.

•Commercial buildings – Office space, conference rooms, bathrooms, break room.

Air Quality – Temperature and Humidity - Control Vari-Green motor via changes in temperature, humidity, or both. Range is 32 to 120°F and 0 to 100% relative humidity.

•Multifamily structures – Apartments, condos, hotels; bathrooms, utility rooms.

•Commercial buildings – Office buildings; office

space, conference rooms, utility rooms, bathrooms.

7

Options and Accessories

Aluminum Construction

Aluminum construction is available for all direct drive sizes 60-160 and belt drive sizes 70-300. Some drive frame components may still be of galvanized construction to maintain structural integrity.

Speed Controllers

Available for use with shaded pole and permanent split capacitor (PSC) motors on model SQ fans. They provide an economical means of system balancing with direct drive fans.

Inlet and Outlet Guards

Inlet and outlet guards provide protection for nonducted applications. Guards are fabricated of welded wire on a galvanized steel frame. They are easily removed for maintenance and inspection.

Belt Drive Motor Cover and Belt Guard

For belt driven fans, combination motor cover and belt guards constructed of galvanized steel are available for protection of motors, drives and personnel. Standard on units specified with UL.

Direct Drive Motor Cover

Formed, galvanized steel motor covers are available to isolate direct drive motors from the airstream. When motor covers are furnished, vents to the exterior of the fan are provided to ensure sufficient motor cooling.

Backdraft Dampers

Gravity or motorized parallel blade dampers (model WD-330) are available for duct mounting. These dampers feature sturdy galvanized frames, aluminum blades with vinyl blade seals, and a balanced design for minimal resistance to airflow.

Control Dampers

Square, opposed blade volume control dampers (model VCD) are available for duct mounting. These dampers feature sturdy galvanized frames, and steel blades with optional blade and jamb seals.

A balanced design results in minimal resistance to airflow.

Coatings

Wide variety of coatings and colors are available.

Decorative coatings are available in sixteen standard colors.

Protective coatings are available in a choice of five electrostatic applied powders providing an available selection for most environments.

All Greenheck coatings

and resistance charts can be found in our Performance Coatings for Commercial & Industrial Fans brochure.

Inlet Vane Dampers

Variable inlet vane dampers (model IVDE) are available for models SQ and BSQ sizes 140-420 and are factory-assembled to the fan. They can be specified for either manual or automatic operation (controls furnished by others). These dampers are

constructed of heavy-gauge steel and feature uniform blade movement for positive control. Companion inlet rings for round duct connections are also available.

Insulated Housing

For noise reduction and condensation control, the interior of the fan housing can be lined with a 1-inch fiberglass duct liner. The optional motor cover can also be insulated.

The table depicts the radiated sound reduction that can be obtained in each octave band for the insulated housing and motor cover together.

Approximate Radiated Sound Attenuation (dB)

Octave Band	1	2	3	4	5	6	7	8
Sizes 60 - 130	-2	-7	-4	-4	-6	-13	-13	-9
Sizes 140 - 420	-3	-2	-5	-4	-5	-5	-7	-8

Wiring Pigtail

Allows direct hook-up to the power supply eliminating field wiring at the fan.

8

Filter Options

The filter box is designed to provide a compact and convenient clean air solution. Factory-assembled as a single unit, this fan eliminates the costly process of designing, fabricating and installing special remote filter box assemblies. Both the fan and filter section feature removable access panels on both sides to remove and replace filters, making fan maintenance simple and fast.

Model Selection Procedure

1.Calculate system pressure drop and cfm requirements (not including filters).

2.Make a preliminary model size selection.

3.Calculate a filter pressure drop (P) for the preliminary

model size selected in step 2 using the equation: P = F x ( 10,000cfm )2

• To determine the filter factor (F) refer to chart below.

4.Add the filter pressure drop (P) to the system pressure drop and make a revised model size selection.

Model SQ Model

Model BSQ

Fan	Filter Box		Filter			Filter Factor (F)
		Filter Size			1 inch (25)			2 inch (51)
Size	Weight		Quantity
				Aluminum		Paper Filters (MERV 7)	Aluminum		Paper Filters (MERV 8)
60 - 75	40	10 x 12	1	186		318.06	251.1		303.18
	(18)	(254 x 305)
80 - 95	74	14 x 25	1	21.8		37.28	29.43		35.53
	(34)	(356 x 635)
100	88	16 x 20	2	8.72		14.91	11.77		14.21
	(40)	(406 x 508)
120	114	16 x 25	2	5.58		9.54	7.53		9.10
	(52)	(406 x 635)
130	120	20 x 20	2	5.58		9.54	7.53		9.10
	(54)	(508 x 508)
140	174	20 x 25	2	3.57		6.11	4.82		5.82
	(79)	(508 x 635)
160	246	20 x 20	4	2.09		3.57	2.82		3.41
	(112)	(508 x 508)
70 - 80 - 90	117	14 x 25	1	21.8		37.28	29.43		35.53
	(53)	(356 x 635)
100	120	16 x 20	2	8.72		14.91	11.77		14.21
	(54)	(406 x 508)
120	144	16 x 25	2	5.58		9.54	7.53		9.10
	(79)	(406 x 635)
130 - 130HP	140	20 x 20	2	5.58		9.54	7.53		9.10
	(64)	(508 x 508)
140 - 140HP	181	20 x 25	2	3.57		6.11	4.82		5.82
	(82)	(508 x 635)
160 - 160HP	294	20 x 20	4	2.09		3.57	2.82		3.41
	(133)	(508 x 508)
180 - 180HP	344	20 x 25	4	1.34		2.29	1.81		2.18
	(156)	(508 x 635)
		12 x 25	3
200 - 200HP	441	(305 x 635)		0.77		1.32	1.04		1.26
	(200)	16 x 25	3
		(406 x 635)
		20 x 25	4
240 - 240HP	573	(508 x 635)		0.41		0.70	0.55		0.67
	(260)	16 x 25	4
		(406 x 635)
300 - 300HP	759	20 x 25	8	0.33		0.56	0.45		0.54
	(344)	(508 x 635)
		16 x 25	10
360 - 360HP	957	(406 x 635)		0.15		0.26	0.20		0.25
	(434)	20 x 25	5
		(508 x 635)
		16 x 25	5
420	1185	(406 x 635)		0.13		0.22	0.18		0.21
	(538)	20 x 25	10
		(508 x 635)

Note: 24-inch side clearance is recommended for accessing and removing filters. All dimensions in inches (millimeters) and weight in pounds (kilograms).

9

Discharge Configurations

The side discharge option helps to reduce system effect. It will increase performance and reduce installation labor. The most notable is reducing system effects. Note: The figure 1 example shows the air being discharged into the corner. It will take several duct lengths before the airflow becomes laminar or smooth again after making the turn.

In figure 2, the fan is placed in the corner using a side discharge. In this configuration the air flow pattern at discharge is smooth and supports a more predictable system. Remember the duct length on the discharge side, should be approximately two to three wheel diameters to achieve catalog performance.

Discharge Configuration

Fan performance will change with different discharge positions. Catalog data is based on an inline discharge. Right side discharge will give you 108% of cataloged performance and left side will give you 109% of cataloged performance. Use figure 3 to locate the orientation to fit your application. Figures 4 and 5 on page 11 illustrate the proper side discharge definitions. Refer to Greenheck’s CAPS (Computer Aided Product Selection) program or consult factory for performance modifications.

Fan

Figure 1

Fan

Figure 2

Left Discharge	Left, Right & Inline Discharge
Right Discharge	Left & Right Discharge

Figure 3

10

Side Discharge

SQ Side Discharge

BSQ Side Discharge

Left Side	Access Door
Discharge	Inline
	Discharge

Figure 4

	Height
Inlet
Width	Right Side
	Discharge

SQ Side Discharge Duct Openings

Unit Size	Width		Height
60-75	97⁄8 (251)		87⁄8 (225)
80-95	127⁄8 (327)		117⁄8 (302)
100	137⁄8 (352)		137⁄8 (352)
120	157⁄8	(403)	157⁄8	(403)
130	177⁄8	(454)	177⁄8	(454)
140	197⁄8	(505)	197⁄8	(505)
160	227⁄8	(581)	227⁄8	(581)

All dimensions in inches (millimeters).

Left Side
Discharge	Access Door
	Inline
	Discharge

Figure 5

Height

Inlet

Width	Right Side
	Discharge

BSQ Side Discharge Duct Openings

Unit Size	Width		Height
70-80-90	117⁄8 (302)		117⁄8 (302)
100	137⁄8 (352)		137⁄8 (352)
120	157⁄8 (403)		157⁄8 (403)
130-130HP	177⁄8 (454)		177⁄8 (454)
140-140HP	197⁄8 (505)		197⁄8 (505)
160-160HP	227⁄8 (581)		227⁄8 (581)
180-180HP	237⁄8 (606)		237⁄8 (606)
200-200HP	277⁄8 (708)		277⁄8 (708)
240-240HP	287⁄8	(733)	347⁄8 (886)
300-300HP	317⁄8	(810)	417⁄8 (1064)
360-360HP	327⁄8	(835)	377⁄8 (962)
420	347⁄8	(886)	437⁄8 (1114)

All dimensions in inches (millimeters).

11

Horizontal and Vertical

Mounting Options

All SQ and BSQ fan models can be mounted horizontally, vertically or at an angle. For ease of installation, knockouts are provided at each location where mounting brackets are shown in figures 6, 7 and 8. Optional brackets are universally adjustable to mount in any of these locations.

		NOTE: Hanging			G
	A	rails by others	E	A
		BG			B
			F

B		A
	A
	F	E
	B

Figure 6

Horizontal Hanging or Base Mount

With either a hanging or base mount the motor may be located on either side. The base mount allows top access panels only.

		E	A	C
A		E
	C	F

A

C	A	F E
	A
		C

Figure 7

Horizontal Hanging or Base Mount

With a hanging mount, the motor may be located on either top or bottom. The base mount allows

top motor location only. Both options provide access panels on two sides.

		D
	NOTE: Hanging	B G
D	rails by others
	B G

			Figure 8
		Vertical Hanging or Base Mount
		Mounting brackets are turned
		90 degrees for vertical mounting.			B	D
		Access panels are located on the
								B
		two sides adjacent to the motor.							D
Model	A	B	C		D	E	F		G
SQ 60-75	105⁄8 (270)	17 (432)	153⁄4 (400)		87⁄8 (225)	193⁄4 (502)	7 (178)
SQ 80-95	131⁄4 (337)	20 (508)	183⁄4 (476)	117⁄8 (302)		43 (1092)	273⁄8 (695)		Hanging
BSQ 70-90	185⁄8 (473)	201⁄8 (511)	183⁄4 (476)	117⁄8 (302)		485⁄16 (1227)	273⁄8 (695)
									rails not
SQ-BSQ 100	185⁄8 (473)	221⁄8 (562)	203⁄4 (527)	137⁄8 (352)		447⁄8 (1140)	24 (610)		included.
SQ-BSQ 120	185⁄8 (473)	24 (610)	223⁄4 (578)		16 (406)	493⁄8 (1254)	281⁄8 (714)		Supplied by
SQ-BSQ 130	185⁄8 (473)	261⁄8 (664)	243⁄4 (629)	177⁄8 (454)		44 (1118)	23 (584)		others.
SQ-BSQ 140	195⁄8 (498)	281⁄8 (714)	263⁄4 (679)	197⁄8 (505)		501⁄16 (1272)	28 (711)
SQ-BSQ 160	231⁄2 (597)	31 (787)	293⁄4 (756)	227⁄8 (581)		495⁄8 (1260)	235⁄8 (600)
BSQ 180	251⁄2 (648)	331⁄2 (851)	299⁄16 (751)	223⁄4 (578)		529⁄16 (1335)	241⁄2 (622)		Hanging
BSQ 200	291⁄8 (740)	37 (940)	333⁄4 (857)	263⁄4 (679)		643⁄16 (1630)	321⁄4 (819)
									rails not
BSQ 240	315⁄8 (803)	441⁄4 (1124)	403⁄4 (1035)	337⁄8 (860)		661⁄2 (1689)	321⁄8 (816)		included.
BSQ 300	35 (889)	51 (1295)	473⁄4 (1213)	407⁄8 (1038)		691⁄8 (1756)	313⁄8 (797)		Supplied by
BSQ 360	383⁄4 (974)	571⁄4 (1454)	531⁄2 (1359)	463⁄4 (1187)		76 (1930)	3411⁄16 (881)		others.
BSQ 420	471⁄8 (1197)	63 (1600)	597⁄8 (1521)	597⁄8 (1521)		901⁄2 (2299)	401⁄2 (1029)

All dimensions in inches (millimeters).

12

Base Mount or Hanging Isolators

j	Standing Neoprene Isolator

h

L

j	Standing Spring Isolator

5⁄8 inch (16 mm) nominal

h

i

Hanging Neoprene Isolator

h

j

Hanging Spring Isolator

K

h

j

Complete isolation kits are available with either neoprene or spring isolators and are sized to match the weight of the specified fan

size. The base isolator support brackets are designed to permit mounting of the fan with the motor located on top or either side. The hanging isolator support brackets are designed to permit mounting of the fan with the motor located on top, bottom or side.

Note: Hanging rods to be supplied by others.

	Model	H	I	J	K	L
	SQ 60-75
	SQ 80-95
	BSQ 70-90	13⁄8	51⁄2	2	63⁄4	25⁄16
	SQ-BSQ 100
		(35)	(140)	(51)	(171)	(59)
	SQ-BSQ 120
	SQ-BSQ 130
	SQ-BSQ 140
	SQ-BSQ 160
	BSQ 180
	BSQ 200	13⁄8	51⁄2	2	63⁄4	25⁄8
	BSQ 240
		(35)	(140)	(51)	(171)	(67)
	BSQ 300
	BSQ 360
	BSQ 420

All dimensions in inches (millimeters).

13

Typical Installation

Models SQ and BSQ ducted inline fans are designed for the exhaust, supply or recirculation of air in a building. Typical installation requires ductwork on the inlet and outlet side of the fan. A minimum of three duct diameters is required on the inlet and outlet of the fan to minimize system effect losses. See the diagram below for a typical installation.

Installations can include flexible duct connections (by others) on either the inlet or outlet side of the fan or

both. The motor is rigidly mounted and can be oriented in any direction (top, bottom, side).

The model BSQ ducted inline fan must be installed with the motor accessible for maintenance and inspection.

External isolators are recommended, hanging (shown below) or base mounted.

Installation must meet all local governing codes and the NEC.

Flexible duct (by others)

3 Wheel

Diameters

3 Wheel

Diameters

Model Number Code

The model number system is designed to completely identify the fan. The correct code letters must be specified to designate belt or direct drive. The remainder of the model number is determined by the size and performance selected from the following pages.

BSQ - 120 HP - VG/75/A

Model Configuration

Bsq - Belt Drive Inline Exhaust

SQ - Direct Drive Inline Exhaust

Fan Size

60 through 420

Pressure Level (Belt Drive Only)

HP - High Pressure Wheel

VG = Vari-Green®

(Direct Drive only)
Motor HP (Belt Drive only)
6 = 1/6	7	= 3/4	30 =	3
4 = 1/4	10	= 1	50 =	5
3 = 1/3	15	= 11⁄2	75 =	71⁄2
5 = 1/2	20	= 2	100 =	10
Motor RPM (Direct Drive only)
A = 1725	D = 1550
B = 1140	E = 1050
C = 860	G = 1300

International

(See CAPS for performance)

K = 950 RPM J = 1475 RPM

14

SQ 60-65 - Direct Drive

1

(25)

87⁄8

(225)

12 13

(305)

(330)

Damper size = 9 x 9 (229 x 229) Unit weight** = 26 (12) Housing thickness = 18 ga Outlet velocity = 1.828 x cfm

12

(305) (Pa) PressureStatic

		0.55
130													RPM (Direct)
													RPM (Vari Green)
		0.50
120			E										Density 0.075 lb/ft 3
			V										Density 1.2 kg/m	3
		0.45	R
110			U		065
			C
								-
			E
									VG
100			M	060
		0.40	T
			S				-
	wg)		Y				VG
		0.35	I
90			S
			S		065
				060
80	(in.		H							D
			T		-				-
			F
	Pressure	0.30	O		D
70			O	060				G
			T
			F
			E
		0.25	L	065-
60			E
			H
			T		-
50		0.20	T
	Static	0.15				G
			L
			T
40			C
			E		065
			S
30			E	060					-
			T
				-						E
		0.10	O		E
20			N
			O
		0.05	D
10
0		0.00 0	50							100	150	200	250		300
											Volume (cfm)

Dimensions shown in inches (millimeters) and weight is
							0		50	100	150	200		250	300	350	400	450	500
shown in pounds (kilograms).
												Volume (m3/hr)
**Weight shown is largest cataloged Open Drip Proof motor.
Motor HP		Fan RPM					CFM / Static Pressure in Inches wg
Direct				0.000	0.050	0.100	0.125			0.150	0.200			0.250	0.300		0.350	0.375
60
			CFM	126	102	79	63			42
VG-1/6	E-1/140	1050	BHP	0.01	0.01	0.01	0.01			0.01
			Sones	1.7	1.7	1.7	1.7			1.8
			CFM	156	136	118	110			99	73			37
	G-1/80	1300	BHP	0.01	0.01	0.01	0.01			0.01	0.01			0.01
			Sones	2.9	2.7	2.7	2.6			2.6	2.5			2.5
			CFM	186	168	153	146			138	123			105	78		48	32
	D-1/40	1550	BHP	0.02	0.02	0.02	0.02			0.02	0.02			0.02	0.02		0.02	0.02
			Sones	4.3	4.1	3.9	3.9			3.9	3.9			4.0	4.0		4.1	4.1
			CFM	207	191	177	170			163	150			136	120		98	85
		1725	BHP	0.02	0.03	0.03	0.03			0.03	0.03			0.03	0.03		0.03	0.03
			Sones	5.4	5.2	5.1	5.0			5.0	5.1			5.1	5.3		5.5	5.6
65
			CFM	154	129	98	79			57
VG-1/6	E-1/100	1050	BHP	0.01	0.01	0.01	0.01			0.01
			Sones	2.2	2.1	2.0	2.0			1.9
			CFM	191	172	150	137			123	92			52
	G-1/50	1300	BHP	0.01	0.01	0.02	0.02			0.02	0.02			0.02
			Sones	3.2	3.1	3.0	2.9			2.9	2.9			2.8
			CFM	228	213	194	185			175	153			129	101		66	46
	D-1/30	1550	BHP	0.02	0.02	0.03	0.03			0.03	0.03			0.03	0.03		0.03	0.02
			Sones	4.9	4.8	4.5	4.4			4.3	4.1			4.0	3.9		3.7	3.6
			CFM	254	242	224	216			207	190			170	148		124	111
		1725	BHP	0.03	0.03	0.03	0.04			0.04	0.04			0.04	0.04		0.04	0.04
			Sones	6.4	6.1	5.8	5.7			5.5	5.3			5.2	5.0		4.8	4.7

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 International Standard 301. Values shown are for installation type B: free inlet hemispherical sone levels.

15