Trane Q Super Ii Users Manual 35376_fands2

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FAN-DS-2
August 2000

FAN-DS-2

Model Q™ Fans
Sizes 16 through 60
Super Q II Fans
Sizes 16 through 44

Model Q Fans
Sizes 16 through 60

Super Q II Fans
Sizes 16 through 44

Features
and Benefits
Q Fan

• Flexible Installation

Benefits
™

The Model Q fan is a quiet, airfoil, inline fan specifically designed for air
conditioning applications. This highly
refined axial flow fan is available in 13
sizes from 1,000 through 80,000 cfm.
Small and compact, the Q fan has
proven to be the ideal air moving
device for standalone applications and
also for custom air handling units. It
can be used for supply, return and
exhaust systems.
Available in arrangement 1 (for floor
mounting of larger units with heavier
motors) and arrangement 9 (horizontal
or vertical mounting), it can be selected
in class 1, 2 and 3. Arrangement 9
permits factory mounting of the motor
on top, bottom, or either side of the fan
— see below.

• The Q (Quiet) Fan

The Trane Model Q fan generates less
low frequency noise (more difficult to
attenuate) than any other type of fan in
the HVAC industry. Sound level
comparisons show common vaneaxial
fans produce up to 23 db higher sound
levels than the Model Q — significant
in industrial applications. Being quieter
than centrifugal fans allows for
installations closer to building
occupants.

The Model Q arrangement 9 can be set
in any position, for horizontal
discharge, angled discharge and
vertical discharge either upblast or
downflow. The only limitations placed
on this arrangement are those dictated
by good fan installation practice.

• Motor slide rails and drive guard are
standard, at no extra cost.

• Saves Mechanical Room Space

The compact quiet Q fan saves floor
space, which reduces system first cost.

• Easy To Install

Rigging and installation is so much
quicker and easier that total installed
cost savings are typically five percent
or more.

• Low Maintenance

Belt-driven with fixed blades, Model Q
fan has very few moving parts. This
design results in exceptionally low
maintenance requirements. No fan
teardowns need be scheduled. In fact,
Q fans installed 25 years ago are still
operating just as quietly as when they
were installed.

Discharge End View

Arrangement 9

AMCA Licensed Ratings
The Trane Company certifies that the
Model Q 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
comply with the requirements of the
AMCA Certified Ratings Program.
©American Standard Inc. 2000

2

Arrangement 1

Contents

Q Fan Accessories

Features and Benefits

• Inlet flange — for simplified, rigid
connection of ductwork to inlet end of
fan
• Inlet screen — safety accessory
mounted to fan inlet. Heavy, plated
steel wire
Note: inlet screen and inlet flange are
mutually exclusive.
• Inlet vanes — mechanically modulate
fan capacity
• Inlet bellmouth — used with unducted
or plenum applications. Improves air
flow and reduces noise.
• Inlet silencer (long or short) — flex
connected to Q fan
• Outlet flange — for simplified, rigid
connection of ductwork to outlet end of
fan
• Outlet screen — safety accessory
mounted to fan outlet. Heavy, plated
steel wire
Note: outlet screen and outlet flange
are mutually exclusive.
• Outlet duct diffuser (equalizer) —
makes fan outlet diameter equal to inlet
diameter
• Outlet flow stabilization screen — small
mesh outlet screen. Helps offset effect
of poor outlet airflow conditions
• Outlet silencer (short or long) — flex
connected to Q fan
• Vertical mounting legs — used with
arrangement 9 for vertical discharge
floor and ceiling mounted
• Isolators — to eliminate vibrations for
floor, ceiling and vertical installations
• Special coatings — to protect against
alkyds, acids and corrosive
environments
• Access door — available on sizes 49, 54
and 60 for easier service
• Drain — recommended to drain off the
condensate where moisture-laden air is
exhausted
• Copper grease lines — plastic lines are
standard
• Double acoustic enhancement —
insulation and perforated sheet metal
to attenuate radiated sound
• Fan insulation — self-adhesive foam,
applied on the outside of the fan shell
to protect against moisture
• Variable frequency inverter balancing
and reinforcement (frequency inverter
by others). This option requires
constant pitch drives.

Model Q Fan — Arrangement 9

3

2

Model Number Description

12

Application Considerations

13

Selection Procedure

21

Performance Data

22

Dimensional Data and Weights

48

Mechanical Specifications

54

Features
and Benefits
This chart shows a typical NC level
comparison between common
vaneaxials, tubular centrifugals, airfoil
centrifugals and the Trane Model Q™
compact fan. The shaded area
represents range of vaneaxials tested.
Trane Model Q fans require up to
85 percent less cubic space than airfoil
centrifugal fans and 40 percent less
than common vaneaxials of equivalent
installed sound level. Floor space
savings can be as much as 65 percent
when compared to the common
vaneaxial and airfoil centrifugal and
40 percent when compared to tubular
centrifugals.

Airfoil Centrifugal Fan
Vaneaxial Fan
Tubular Centrifugal Fan

Trane Model Q Compact Fan

4

Features
and Benefits
Super Q II Plus
More than twenty years after the
introduction of the Model Q™, it still
retains its reputation as one of the
quietest HVAC fans in the world. This
tradition of excellence continues with
the introduction of a new Q fan
acoustical enclosure and duct silencer
so effective and so compact that we
named it the Super Q II.
Super Q II Fan
Available with Model Q fans from 1,000
to 43,000 cfm, the Super Q II enclosure
inhibits radiated fan and motor noise
from entering the surrounding space. It
internally isolates the fan on high
deflection spring isolators so ductwork
can be connected directly to the
enclosure. It is uniquely designed to be
floor or ceiling mounted with ease.

Although the Model Q needs very little
maintenance, future maintenance
requirements were considered by
Super Q II designers. Every unit has the
bearing grease lines extended through
the casing and every unit has two full
size access panels that provide
complete access to all internal
components.
Variable Air Volume Compatible
The Super Q fan is modulated for VAV
with variable frequency drives (by
others), not with inlet vanes. Variable
speed inverter fan modulation offers
exceptional energy saving and
exceptionally quiet part load operation.
VAV variable speed Q fans are
structurally reinforced to handle the
uneven harmonic loadings associated
with variable speed fan operation. In
addition, the factory gives variable
speed Q fans a precise, 10-point
balance to further help assure troublefree operation. Only constant pitch
drives should be used with variable
frequency inverters.

Super Q II

5

Super Q II Accessories

• Inlet screen — safety accessory

mounted to fan inlet. Heavy, plated
steel wire
• Inlet bellmouth — used with unducted
or plenum applications. Improves air
flow and reduces noise.
• Inlet silencer (long or short) — rigid
connection to Super Q fan
• Outlet flow stabilization screen — small
mesh outlet screen. Helps offset effect
of poor outlet airflow conditions
• Outlet silencer (short or long) — flex
connected to Q fan
• Variable frequency inverter balancing
and reinforcement (frequency inverter
by others). This option requires
constant pitch drives.
• Outlet screen — safety accessory
mounted to fan outlet. Heavy, plated
steel wire.

Features
and Benefits
Trane Plus Duct Silencer
The Plus option is a high performance
duct silencer. Designed specifically for
the Super Q II and Model Q™, it has
several unique features that reduce
airborne noise and turbulence to
exceptionally low levels. Briefly, the
Plus option develops maximum static
regain while simultaneously limiting
objectionable mid and high frequency
noise. The Plus option should be used
whenever quiet comfort is desired
and the duct system is acoustically
unable to provide it.
Trane’s Plus Silencer provides
significant noise attenuation, up to
32 db at 1,000 Hz, without a significant
increase in fan horsepower
requirements.

By carrying the concept of noise source
attenuation to its economic maximum,
Trane has created a fan system that can
move significant amounts of air
without creating objectionable low
frequency rumble. It provides proven
acoustical performance with less
design risk. In project after project, the
Trane Model Q fan has been the key to
creating NC 15 to NC 35 quiet
comfort jobs.
Beyond quiet, the Super Q II Plus
system is small and compact. In fact, it
is small and quiet enough that it can be
successfully installed in ceiling
plenums. Locating a Super Q II Plus in
the plenum helps reduce and even
eliminate the floor space needed for
the mechanical room.

Plus Silencer

6

The modular, component design
approach of the Super Q II air handling
system makes it exceptionally well
suited for renovation, retrofit and
replacement projects. The Super Q II air
handling system components (fan,
silencers, filter/coil module, etc.) fit
through most doors and elevators and
can be easily field-assembled into any
system configuration (blow-thru, drawthru, etc.).

Features
and Benefits
Low Sound Level, High Efficiency
Provided by Unique Aerodynamic
Features
[9] Airfoil Vanes (stationary)

[4] Airfoil Blade Wheel.
[5] Aerodynamic Pitch

[10] Stabilizing Pitch
[7] Hub Streamlining Insulation

[6] Minimum Tip Clearance

[2] Aerodynamic Inlet Bell

[12] End Cone

[8] Exact Blade to Vane Spacing
[11] Precise Divergent Angle Diffuser
Discharge Cone
[3] Aerodynamic Inlet Cone
[1] Thin Strut Patented
Bearing Support

Precision cast fan wheel and diffuser
for highly efficient aerodynamic
performance. [8]

Precise divergent angle for maximum
static regain. [11]

Note: Call-out numbers shown above are referenced on page 8.

7

Aerodynamic inlet provides smooth
airflow. [3]

Features
and Benefits
The low sound and high performance
of the Trane Model Q™ fan are achieved
by reducing noise-creating, energyconsuming turbulence within the fan.
Airflow research and development
techniques employed were similar to
those used in perfecting today’s high
performance axial flow jet engine
compressors. The resulting smooth air
path has made the Model Q the first
vaneaxial fan to provide quiet, efficient
operation, suitable for air conditioning
duty.
Aerodynamic Air Path
A component by component analysis
of the Model Q points to 12
aerodynamic features which are keys
to a smooth air path. Starting at the
inlet, the struts [1] of the patented
bearing support are precisely
positioned in relation to the fan blades.
Air passing over the struts strikes the
blades in a pattern that prevents blade
whine.

Precise Manufacturing Assures
Performance — Advanced
manufacturing techniques assure the
same performance characteristics for
each production Model Q fan.
• Fin Struts — The fin struts of the
patented bearing support are precisely
positioned in relation to the fan blade.
Air passing over the struts strikes the
plate in a pattern that prevents the
irritating whine, from blade frequency,
which is characteristic of industrial
vaneaxials.
• Inlet Bell and Cone — The
aerodynamically shaped inlet bell and
inlet cone provide uniform axial flow
into the fan parallel with the fan shaft.
Air is delivered equally to the leading
edge of the fan blades. This prevents
crowding toward the blade tip.
• Wheel — The wheel consists of 8
precision cast blades with a twisted
radially projected shape and airfoil
cross section. This radial projection
utilizes a variable angle of attack in the
radial dimension and prevents radial
movement as the air particles move
through the wheel.

The aerodynamically shaped inlet bell
[2] and inlet cone [3] provide uniform
axial flow parallel to the fan shaft. Air is
delivered equally to the leading edge of
the fan blades — no crowding toward
the fan tips.

stabilization ahead of the vanes. The
vanes themselves are precision cast
aluminum and have an airfoil cross
section [9] and a precise radial pitch
[10]. This provides smooth, spiral-free
discharge.

Air separation is reduced by the
precision cast aluminum airfoil cross
section [4] of the fan blades. Blade pitch
[5], using a variable angle of attack in
the radial dimensions, is precisely
controlled to prevent energy loss.
Exceptionally close clearance
[6] between the blade tips and housing
reduces the eddy currents of fan tip
recirculation. The reinforcing ring
rigidizes the housing to maintain the tip
clearance. The interior of the fan wheel
is insulated to prevent hub
strengthening protrusions from
[7] windmilling in the airstream.

The diffuser section design [11] is
critical. A precisely determined
diffusion angle produces the greatest
possible static regain within the
confines of the fan. An end cone
[12) covers the fan drive assembly,
thereby reducing the turbulence
generated by air passing over exposed
drives.

A precisely controlled space [8]
between the fan blades and diffuser
vanes is necessary to allow airflow

• Tip Clearance — Close clearance

between the blade tips and housing
reduces eddy currents due to tip
recirculation. The reinforcing ring holds
the housing in its precise shape to
maintain proper clearance.
• Vane Spacing — Precise space
between the fan blades and the diffuser
vanes is necessary to allow flow
stabilization ahead of the vanes. The 29
diffuser vanes also have an airfoil cross
section and a twisted, radially projected
shape. This provides smooth, spiralfree air discharge.
• Precision Cast Aluminum Fan and
Diffuser — Being cast, blade and vane
shapes are permanently and precisely
fixed. They are not subject to
misalignment or distortion as are
welded, sheet metal forms.
• Diffuser Section — The diffuser
section design is critical. A precisely
determined flare angle at the diffuser
end produces the greatest possible
static regain within the confines of the
fan. Thus, externally mounted diffuser
accessories, common for industrial
vaneaxials, are not necessary.

8

• Hydraulically Expanded Flow-

Formed Housing — In this process,
the cylindrical housing is drawn to its
final form over an expansion die. The
metal, expanded beyond its elastic
limit, permanently retains the precision
form imparted by the die.
• Ductile Weld Technique — This
technique is required for the fan
housing seam to guarantee success of
the expansion forming process. The arc
and “puddle” are submerged in
molten flux that shields the weld
material from oxidation. This prevents
brittleness and also anneals the weld.
The result is a flexible, ductile seam
capable of being drawn and formed —
another example of the advanced
technology used in the Trane Model
Q fan.

Features
and Benefits
Saving Valuable
Equipment Room Space
The Trane Model Q™ and Super Q II
fans can help you maximize your
building’s usable floor space by using
them in place of centrifugal fans. The
smaller the equipment room, the more
space left for tenants, merchandise, etc.

Return or Exhaust Applications
Figure F-1 shows a size 44, single
width, low pressure airfoil centrifugal
fan delivering 20,000 cfm of air.
Because of its size and weight, it is floor
mounted and connected to a return air
plenum. In contrast, a 44-inch Model Q
fan is used in Figure F-2 instead of a
centrifugal fan. Its smaller size and
lighter weight permits ceiling
suspension and approximately 75 sq ft
of floor space is freed up for other use.

Figure F-1

Figure F-3

Figure F-2

Figure F-4

9

Draw-Thru Supply Application
(Small Capacity)
The fan system in Figure F-3 is a
27-inch, single width, medium pressure
airfoil centrifugal fan rated at 9,000 cfm.
Even though it is a relatively small fan,
it is floor mounted beside the coil bank
plenum. Figure F-4 shows a 27-inch
Model Q substituted in place of the
centrifugal. The small size and weight,
plus the installation flexibility of the
Model Q, permits mounting in a
vertical position on top of the plenum.
The space savings is about 25 sq ft.

Features
and Benefits
Draw-Thru Supply Application
(Large Capacity)
A 60-inch, single-width, medium
pressure airfoil centrifugal fan is used
in the system illustrated in Figure F-5 to
supply 45,000 cfm of air.This capacity
can be easily achieved by installing a
pair of 40-inch Model Q™ fans in
parallel as shown in Figure F-6. The
resulting floor space savings is
approximately 85 sq ft!

Figure F-5

Figure F-7

Figure F-6

Figure F-8

10

Blow-Thru Supply Application
Figure F-7 shows a typical medium
pressure, built-up, blow-thru system.
The fan, enclosed in a plenum, is a 33inch, double width, airfoil centrifugal
that delivers 30,000 cfm of air. The
bulkiness of the plenum is dictated by
the necessary clearances around the
fan. To save floor space, a 44-inch
Model Q replaces the centrifugal in
Figure F-8. The suspended mounting of
the Model Q frees about 70 sq ft for
installation of pumps and other
equipment.

Features
and Benefits
Reduce Installed Cost
By Up To 20 Percent
The Trane Model Q™ fan, with all its
precision and quality, is still a cost
effective fan. When all necessary
system components are considered, it
provides substantial installation cost
savings. In addition, its small size and
variable mounting positions allow
more freedom to the designer and
installer.
First Cost Comparisons
True first cost is the total cost of an
operable installation. With the Trane
Model Q, this consists of only the fan,
drive and isolation. By comparison, the
airfoil centrifugal typically requires
these three components, plus an
integral base. In addition, cost of
isolation for the airfoil is greater
because it is typically twice as heavy as
the Model Q.
The common vaneaxial also requires
more components in most
applications. Besides the fan, drive and
isolation, an inlet bell and diffuser are
frequently necessary to meet cataloged
performance. A sound attenuator is
also required to reduce noise to a level
equivalent to a Model Q fan without
attenuation.

Lower Installation Costs
The Trane Model Q fan has fewer
components to install and the
advantage of lighter weight. With only
half the weight of airfoil and tubular
centrifugals, it requires less manpower
for rigging and setting the fan in place.
The result is reduced labor, with
corresponding dollar savings on the
typical job.
Lighter weight also reduces inertia pad
requirements. With the Model Q, a pad
has to be considered only on large

Class III fans. Airfoil and tubular
centrifugals, because of greater weight,
often require pads for Class I and II to
minimize the effect imposed by normal
vibration.
Combined Saving Significant
A comparison of average total installed
cost is shown in Table F-1. Average cost
figures were developed based on
estimates by experienced installing
contractors. In all cases, the Trane
Model Q represents a significant
savings.

Table F-1 — Total Installed Cost Comparison
Standard
Centrifugal

Item Required

Trane
Model Q

Tubular
Centrifugal

Vaneaxial

X

First Cost Requirement
Fan

X

X

X

Belt Guard

X

X

X

Integral Base

X

Inlet Bell

X

Attenuation

X

Spring Isolators

X

X

X

X

X

X

X

X

Installation Cost Requirements
Rigging
Install Attenuation

X

Mount Motor (Etc.)

X

X

Install Isolation

X

X

X

X

Average Total Installed Cost

X

–5

+5

+15

Comparison is based on equal size fans of similar capacities. The airfoil centrifugal fan is used as base (100%) for
comparative purposes. Figures are based on estimates by experienced installing contractors.

Arrangement 9 Trane Model Q fan
requires purchase of motor, motor
rails, belt guard and isolation in
addition to the basic fan.

11

Arrangement 3 airfoil centrifugal fan
requires purchase of motor, belt
guard, motor slide rail, isolation and
subbase in addition to basic fan.

Model
Number
Description
Valid
Prod.
Cat.

Selectable
Item Description

CYCLE QSE
QSE1
QSQ
MTO
MTO1
MTO2
MTO3

E-cycle 16-44 arr 9 cl 1&2
w/o mtr mtd
E-cycle 16-44 arr 9 cl1&2
w/mtr mtd
Q-cycle 16-44 arr 9 cl 1,2&3
Std cycle 16-44 arr 1&9
cl 1,2&3 & SQ2
Std cycle 16-44 arr 1&9
w/unit coating
Std cycle 49-60 arr 9 cl 1&2
Std cycle 49-60 arr 9
w/unit coating

MODEL QFNA Q (Quiet) fan
TYPE

SQ2 Super Q2 fan
QFAN Q fan

SIZE

16
19
21
24
27
30
33
36
40
44
49
54
60

Fan size 16” (400 mm)
Fan size 19” (475 mm)
Fan size 21” (525 mm)
Fan size 24” (600 mm)
Fan size 27” (675 mm)
Fan size 30” (750 mm)
Fan size 33” (825 mm)
Fan size 36” (900 mm)
Fan size 40” (1000 mm)
Fan size 44” (1100 mm)
Fan size 49” (1225 mm)
Fan size 54” (1350 mm)
Fan size 60” (1500 mm)

9
1

Arrangement 9 fan
Arrangement 1 fan

ARRG

CLASS 1
2
3
UORT

UP
Upblast discharge
DOWN Downblast discharge
H
Horizontal discharge

MTRS TT
FT
TF
FF
TRES

DUCT

Class 1 fan
Class 2 fan
Class 3 fan

Trane supplied motor &
Trane mounted
Field supplied motor &
Trane mounted
Trane supplied motor &
field mounted
Field supplied motor &
field •mounted

WB

Thrust restraints WB
(direct ship)
NONE No thrust restraints

YES

Duct canvas

WBAL FACT Q fan inverter factory
balancing
FIELD Inverter ready balanced by
customer

Valid SelectProd. able
Cat. Item Description

Valid SelectProd. able
Cat. Item Description

MTHP 1
1.5
2
3
5
7.5
10
15
20
25
30
40
50
60
75

INSL F
FA

Fan insulation
Fan and accessories
insulation

ENHA DBLE

Double acoustic
enhancement

Motor hp 1 (.7 kW)
Motor hp 1.5 (1 kW)
Motor hp 2 (1.5 kW)
Motor hp 3 (2 kW)
Motor hp 5 (4 kW)
Motor hp 7.5 (5.5 kW)
Motor hp 10 (7 kW)
Motor hp 15 (11 kW)
Motor hp 20 (15 kW)
Motor hp 25 (18 kW)
Motor hp 30 (22 kW)
Motor hp 40 (30 kW)
Motor hp 50 (37 kW)
Motor hp 60 (44 kW)
Motor hp 75 (56 kW)

MTYP HEOP18ODP High eff mtr 1800 rpm
1S/1W
ODP12 ODP High eff mtr 1800/
1200 rpm 2S/2W
ODP91 ODP High eff mtr 1800/
900 rpm 2S/1W
ODP92 ODP High eff mtr 1800/
900 rpm 2S/2W
PHOP18ODP Prem Hi E+3 mtr
1800 rpm 1S/1W
HETE18 TEFC High eff mtr 1800 rpm
1S/1W
PHTE18 TEFC Prem Hi E+3 mtr
1800 rpm 1S/1W
VOLT 200
208
230
460
575

200 Volt 60 hertz 3 ph motor
208 Volt 60 hertz 3 ph motor
230 Volt 60 hertz 3 ph motor
460 Volt 60 hertz 3 ph motor
575 Volt 60 hertz 3 ph motor

MOLO R

Motor location right hand
drive
Motor location left hand
drive
Motor location top drive
Motor location bottom drive

L
T
B
GRSL N
C

Nylon grease lines
Copper grease lines

DTYP C1.2

Constant pitch drive with
1.2 DSFT
Constant pitch drive with
1.4 DSFT
Constant pitch drive with
1.5 DSFT
Variable pitch drive with
1.2 DSFT
Variable pitch drive with
1.4 DSFT
Variable pitch drive with
1.5 DSFT

C1.4
C1.5
V1.2
V1.4
V1.5

12

COAT BPI

Baked phenolic (heresite)
inside
BPIO
Baked phenolic (heresite)
in/outside
EI
Epoxy inside
EIO
Epoxy inside/outside
EPI
Epoxy phenolic
(2 components) inside
EPIO
Epoxy phenolic (2
components) inside/outside
EPADI Epoxy phenolic (air dry
heresite) inside
EPADIO Epoxy phenolic (air dry
heresite) inside/outside
PEI
Polyester (sanitile) inside
PEIO
Polyester (sanitile) inside/
outside

IOPT IB
IF
ISC
IBSC
SH
L
IV
NONE

Inlet bell
Inlet flange
Inlet screen
Inlet bell with inlet screen
Inlet silencer short
Inlet silencer long
Inlet vanes
No inlet options

OOPT OFLG
OSCN
ODEQ
ODOF

Outlet flange
Outlet screen
Outlet duct equalizer
Outlet duct equalizer w/
outlet flange
SH
Outlet silencer short
L
Outlet silencer long
NONE No outlet options

ISOL SLF

Free standing spring floor
isolators
C
Housed spring floor isolators
ND
Dbl deflection neoprene
floor isolators
RSL
Spring rail floor isolators
MSL
Steel base w/spring floor isol
KSL
Concrete inertia base w/spring
floor isolators
HD
Dbl deflection neoprene
ceiling isolators
HS
Spring ceiling isolators
DNHS Spring & neoprene ceiling isol
WR
Neoprene wall isolators

ADOR MS
OS
9R
9L

Access door motor side
Access door opp. motor side
Access door 90° right of motor
Access door 90° left of motor

DRAN YES

Drain

MTGL IL
OL

Inlet mounting legs
Outlet mounting legs

Application
Considerations
This section assists the system
designer in application and control of
Trane Q and Super Q II fans.
Satisfactory distribution of conditioned
air requires a properly chosen fan and
a well designed duct system.
Abbreviations
sp ...... static pressure (in. of water)
vp ...... velocity pressure (in. of water)
tp ....... total pressure (in. of water)
ov ...... outlet velocity (ft per minute)
rpm ... fan speed (revolutions per min.)
bhp ... brake horsepower
p ........ air density (lbs/ft3)
db ...... decibel (sound power or sound
pressure level)
cps .... cycles per second
cfm .... cubic feet of air per min. at any
density
scfm .. cubic feet per min. of standard air
clean, dry air with a density of
0.075 lbs/ft3 at 70 F and a barometer
reading of 29.92- inches Hg)

The System
An air system may consist of a fan,
ductwork, air control dampers, cooling
coils, heating coils, filters, diffusers,
noise attenuation, turning vanes, etc.
The fan is the component in the system
which provides energy to the airstream
to overcome the resistance to flow of
the other components.

System Curve
At a fixed volume flow rate (cfm)
through a given air system, a
corresponding pressure loss, or
resistance to this flow, will exist. If the
flow rate is changed, the resulting
pressure loss, or resistance to flow, will
also change. The relationship
governing this change for most
systems is:
PRESSUREc/PRESSURE = (CFMc/CFM)2

The characteristic curve of a typical
“fixed system” plots as a parabola in
accordance with the above
relationship. Typical plots of the
resistance to flow versus volume flow
rate are shown with normalized duct
system curves, Figure A-1.

Figure A-1 — Normalized Duct System Curves

System Component Losses
Every system has a combined
resistance to flow which is usually
different from every other system and
is dependent upon the individual
components in the system. The
determination of the “pressure loss” or
“resistance to flow,” for the individual
components can be obtained from the
component manufacturers. The
determination of pressure losses for
ductwork and branch piping design is
well documented in standard
handbooks such as the ASHRAE
Handbook of Fundamentals.

13

For a fixed system, an increase or
decrease in system resistance results
from an increase or decrease in the
volume flow rate along the given
system curve only.
Refer to Duct System A, Figure A-1.
Assume a system design point at
100 percent volume and 100 percent
resistance. If the volume flow rate is
increased to 120 percent of design
volume, the system resistance will
increase to 144 percent of the design
resistance in accordance with the
system equation. A further increase in
volume results in a corresponding
increase in system pressure. A
decrease in volume flow to 50 percent
results in a 75 percent reduction in
design resistance.

Application
Considerations
Performance Data Determination
The fan performance section of this
catalog contains a fan performance
table and fan curve for each fan size.

Figure A-2 — Point of Operation — Interaction of the System Curve
and the Fan Performance Curve

The performance data contained in this
catalog was calculated from tests
conducted in accordance with AMCA
Standard 210 Laboratory Methods of
Testing Fans for Rating.
The AMCA test procedure uses an
open inlet and 10 wheel diameters of
straight discharge ductwork to assure
maximum static regain. The fan is
direct driven by a dynamometer.
The fan performance tables in this
catalog are based upon standard air:
0.075 lbs/ft3 (70 F, barometric pressure
29.92-inches Hg).
Fan Performance Curves
A fan performance curve is a graphical
presentation of the performance of a
fan. Usually it covers the entire range
from free delivery (wide open cfm, no
obstruction to flow) to no delivery
(blocked tight, an airtight system with
no air flowing).
The point of intersection of the system
curve and the fan performance curve
determines the point of operation and
actual flow volume. If the system
resistance has been accurately
determined and the fan properly
selected, their performance curves will
intersect at the design flow rate. Refer
to Figure A-2. The normalized Duct
System A from Figure A-1 has been
plotted with a normalized fan
performance curve.

Figure A-3 — Air Density Corrections

Temperature and Altitude Corrections
The fan performance values in the
tables and curves of this catalog are
based on standard air (.075 lbs/ft3). If
the airflow requirement for a particular
job is stated in terms of nonstandard
air, a density correction needs to be
made before selecting the fan. It is
important to also note that most air
friction charts for ducts, filters, coils,
etc. are also based on standard air and
corrections must be made to determine
proper losses at other conditions.
Figure A-3 illustrates the ratio of air
densities to standard air at various
temperatures and elevations. A Q fan is
designed for operation between -20 F
and 150 F only.

14

Application
Considerations
The following is the procedure to use
when selecting a fan for elevations and
temperatures other than standard:
1
Determine the air density from
Figure A-3.
2
Divide static pressure at the nonstandard condition by the air density
ratio.
3
Use the actual cfm and corrected static
pressure to determine rpm and bhp
from the fan performance tables.
4
The rpm is correct as selected.
5
The bhp must be multiplied by the air
density ratio determined in step one to
get the actual operating bhp.

Table A-1 — Q Fan/Super Q II Fan Installation Kt Corrections

Unducted (Plenum) Inlet*
Draw-Thru Type Design

0.0

Ducted Inlet
Turn > 3 Dia Upstream
-1.0
Turn 2 Dia Upstream
+.8
Turn 1 Dia Upstream
+1.3
Turn < 1 Dia Upstream
Not Recommended

Unducted Outlet
Blow-Thru Type Design

+.8

Ducted Outlet
Turn > 2 Dia Downstream
0.0
Turn 1 Dia Downstream
+1.3
Turn < 1 Dia Downstream
Not Recommended

Figure A-4 — Ducted Turns Near Q Fan

Option and Installation Kt Corrections
System effect losses due to less than
ideal inlet or outlet configuration can be
expressed in terms of velocity pressure
by the following expression:
Inlet SP Loss =
Kti

Velocity
( Inlet4005
)

2

Table A-2 — Q Fan/Super Q II Fan Option Kt Corrections

Where Kti =
Inlet Option Kt + Inlet Installation Kt
Outlet SP Loss =

(

)

Kto Outlet Velocity
4005

2

Where Kto = Outlet Option Kt + Outlet
Installation Kt
Kt is the loss factor for the inlet or
discharge condition being considered.
It is necessary to add all of the static
pressure loss determined from the
above equation to the component
static pressure to determine the point
of duty static pressure for selection of
the fan.

Options
Inlet Flange
Inlet Bellmouth*
Inlet Plus Silencer
Inlet Screen
Outlet Screen
Outlet Flange
Outlet Equalizer (Diffuser)
Outlet Plus Silencer
Outlet Flow Stabilization Screen
Outlet Backdraft Damper
Frequency Drive Modulation
Belt Guard
Motor Rails
Standard Isolators
Seismic Isolators

Use
Connects to bolted inlet duct
Reduces Unducted Inlet Kt
Reduces inlet noise
Protects Unducted Inlets
Protects Unducted Outlets
Connects to bolted outlet duct
Improves SE
Reduces Outlet Noise
Reduces Outlet swirl
Isolates fan from duct
Modulates Q Fan quietly
Protects drives/belts
Allows motor to be mounted
Isolates fan
Isolates fan

Q-Fan
X
X
X
X
X
X
X
X
X
Special
Special
X
X
X
X

Super Q II Pressure
Fan
Drop (Kt)
0
X
-.1
X
+.1
X
+.1
+.5
0
0
X
+.1
X
+.8
Special
+.5
Special
0
0
Included
0
Included
0
Special
0

*Note: Bellmouth effect included in unducted installation Kt correction. Fan sizes 49 through 60 fan curves are cataloged
with inlet bells. For unducted inlets without bells on size 49 through 60 fans add .1 to the inlet Kt given above.
Inlet vane losses are covered in the Selection Procedure with air density corrections (page 20).

Fan Option Kt Corrections
The fan static pressure should be
adjusted for fan options. Option
pressure drops are documented as Kt
losses and are handled the same way
as installation Kt effects (losses). Use
Table A-1, Q Fan/Super Q II Fan Kt
corrections, to determine the Kt values.
Add these values to any installation Kt
values. Use the result to select the fan.

15

Application
Considerations
Q and Super Q II Fan Modulation —
AC Inverter Capacity Control
Q fans and Super Q II fans can be
modulated with AC frequency drives.
The Trane Company recommends
Magnetek low noise inverter drives and
Century high efficiency motors for
optimum modulation performance.
Operating the Q or Super Q II fan on AC
frequency drives requires the Q fan to
be strengthened and balanced in the
factory. This option “beefs up” the
mechanical bracing of the Q fan inlet
bearing assembly and calls for a
precision factory balance. Precision
balancing covers 10 operating points
on the system curve from 10 percent
load to full load.
Minimum cfm with AC inverters —
Above 1.5” static pressure, the
minimum cfm is the surge (do not
select) line. Below 1.5” static pressure,
it is 1000 cfm.
Q Fan Modulation — Inlet Vanes
Inlet vanes are a widely used form of
fan modulation. As inlet vanes close,
they impart a spin on the incoming air
in the direction of the fan wheel
rotation. This reduces airflow, static
pressure and brake horsepower.
However, inlet vanes do increase
sound levels. If a job is acoustically
sensitive, AC inverters are
recommended for modulation. As
shown in Figure A-5, a separate cfm
static pressure curve (cfm-sp) is
generated per each inlet vane position.
Likewise, the figure shows brake
horsepower curves that apply for
various inlet vane positions.

As VAV terminal units begin to close in
response to a decreasing cooling load,
static pressure in the ductwork
increases. This causes the fan
operating point to temporarily move
upward to the left on a constant rpm
curve as shown in Figure A-5 (point A
to point B). The static pressure sensor
will detect an increase in duct pressure
and signal the inlet vane operator to
begin to close the vanes. The inlet
vanes will close until the static pressure
sensor is again satisfied, moving the
operation point to C (Figure A-5). As the
cooling load continues to decrease, the
modulation curve will be formed
(point C to D, and point D to E) on
Figure A-5. This curve passes through
the design point and through the static
pressure sensor control point. The
static pressure of any point on this
curve can be calculated using the
formula:
Sp = (Cfm/Cfmd)2 x (SPd-SPc) = SPc
SPd = static pressure at design,
SPc = static pressure control setting,
Cfmd = cfm at design.

Figure A-5 – VAV System Modulation Curve

Inlet vanes are controlled by placing a
static pressure sensor in the
downstream ductwork, typically about
two-thirds of the way down the longest
trunk duct. This sensor is set at a static
pressure that will ensure sufficient
pressure is available to move air from
that point through the remaining duct
work. The sensor will respond to duct
pressure changes and signal the inlet
vane operator to open or close the
vanes to maintain the control setting at
the sensor location.

16

The VAV system modulation curve can
be drawn using a Trane system
modulation overlay. The axis of the
overlay is placed on a static pressure
control setting. The curve that
intersects the design points is the
system modulation curve.
Because the axes of the inlet vane
performance graph are in terms of
percent wide open cfm (wocfm)
and percent peak static pressure, the
first step in establishing the system
modulation curve is to find the
proper design points. By plotting the
design point on the performance
curve for the fan in question, one can
easily determine the percent wocfm.
Knowing this, plot a point on the
cfm-sp curve (Figure A-6) for inlet
vanes wide open, at the design point
of wocfm. By tracing to the left, one can
determine the percent of peak static
pressure. By knowing the design cfm,
static pressure and the percent of wide
open cfm and percent peak static that
these values represent, one can
calculate wocfm and peak static
pressure.

Application
Considerations
The control static pressure can then be
expressed as a percent of peak static
pressure and plotted. The system
modulation curve is described by the
curve on the modulation overlay that
passes through the design point when
the axis is placed on the control static
pressure point.
The minimum inlet vane cfm can easily
be determined after the system
modulation has been established. It
will be one of two things, either a) the
point where the system modulation
curve intersects the surge line, or
b) 40 percent wocfm, whichever is
greater. Forty percent wocfm is the
minimum point a Q fan with inlet vanes
can modulate, due to inherent
instability that results when the vanes
close to a certain angle.

Part load fan power consumption with
inlet vanes can be determined by
entering Figure A-6 at the desired
percent wide open cfm. (Wide open
cfm is found on the fan curve by
following the fan rpm to the right until
it intersects the 0” static pressure axis.)

On Figure A-6, plot a system curve from
the control static pressure through the
point of operation defined as a
calculated percent wide open cfm. Read
vertically upward from the 25, 50 and 75
percent intersections to determine the
percent bhp at part load.
Intermediate operating points are found
by extrapolation. Inlet vanes increase
Q fan sound levels. See Table A-5.

Figure A-6 – Inlet Vane Performance

A plot of part load cfm versus brake
horsepower can also be made after the
system modulation curve is established.
At each intersection of the system
modulation curve with a cfm-sp curve
for a certain inlet vane opening, a
vertical line is traced to the appropriate
bhp-cfm curve. At each intersection of a
bhp-cfm curve, a horizontal line is
traced to the scale of percent brake
horsepower. This will lead to a percent
wocfm versus percent peak bhp plot.
The design rpm and bhp need to be
corrected to account for performance
losses due to inlet vanes being in the air
stream. A correction of one percent to
the rpm and three percent to the bhp is
made in order to get to design
conditions with the inlet vanes fully
open.

17

Application
Considerations
Table A-3 — Maximum Torque For
Operation Of InletVanes
Size Class
1
16
2
3
1
19
2
3
1
21
2
3
1
24
2
3
1
27
2
3
1
30
2
3
1
33
2
3
1
36
2
3
1
40
2
3
1
44
2
3

Control
Arm
(In.)
8.75

8.75

8.75

8.75

8.75

8.75

8.75

10.81

10.81

10.81

Opening
Torque
(In.-Lb)
8
14
23
12
21
34
17
31
32
26
48
79
37
66
109
52
94
155
65
128
212
100
180
298
138
249
412
193
349
576

Closing
Torque
(In.-Lb)
7
13
22
11
19
31
15
26
44
20
36
61
27
48
79
35
63
104
41
81
134
59
106
175
75
136
225
99
179
295

Motor and Drive Selection
The Model Q fan has been designed for
use with NEMA “T” Frame
motors. Motor hp limits for Class I, II,
and III construction are listed in the
roughing-in Dimensional Data section
of this catalog.

Table A-4 defines this constant
system curve as a percent of wideopen cfm. If fans in parallel are
always operated to the right of this
constant system curve, fan paralleling
will not occur.
Table A-4 — Parallel Operation
Fan Size
16
19-21
24-30
33-44
49-60

Minimizing belt tension forces
increases bearing life and reduces fan
noise. The Q fan and Super Q II fan
drive selection is totally computerized
by the factory to achieve quiet, long life
operation. If Trane provides Q fan
drives, all fan motor information must
be made available to the Trane sales
engineer.

Minimum % of WOCFM
For Two Model Q Fans
In Parallel
80% WOCFM
81% WOCFM
83% WOCFM
73% WOCFM
85% WOCFM

Figure A-7 — Selecting Model Q Fans in Parallel

Parallel Fan Operation
The Q fan performance curve has a
characteristic shape where two
different cfm’s are possible at the same
static pressure. Therefore, when
selecting fans for multiple installation
connected with either a common inlet,
a common discharge or both, care
must be taken to eliminate the
possibility of fan paralleling.
Figure A-7 shows two typical cfm-sp
performance curves for the Q fan. Fan
paralleling can occur when multiple
fans are selected in the shaded area.

Recommended Q Fan Configuration Inside an Air Handler

The shaded area is determined by
going straight across from the lowest
point of the fan performance curve at
the left of the surge line (A and A1) to
the same curve to the right of the surge
line (B and B1). Points B and B1 fall on a
constant system curve.

Side View

18

Application
Considerations
Recommended Super Q II (NC40)
Plenum Configuration

Recommended Super Q II Multiple Fan (NC40)
Low Height Plenum Configuration

Recommended Super Q II Quiet (NC35)
Floor-Mounted (Stacked) Configuration

Operating Cost/Efficiency
The quiet Q fan is a very efficient fan.
The Q fan mixed-flow type airfoil thrust
blades offer outstanding efficiency and
operating cost savings over such fan
types as plug fans. Designers can
compare the Q fan efficiency with other
fans by using the fan selection program
and the Trane Customer Direct Service
(C.D.S.™) Network FanMod program.

The Trane fan selection program
provides accurate part load energy
consumption no matter what fan
modulation method is selected. The
FanMod program compares two or
more fans economically for one or
more years. FanMod is an easy-to-use
program for equipment life cycle cost
analysis.

19

When comparing the Q fan
performance with centrifugal fans,
remember to recalculate the fan
external static pressure. The in-line
delivery of the Q fan often eliminates
the need for a 90 degree turn right off
the fan outlet. Turns directly
downstream of the fan outlet consume
energy and generate noise and,
therefore, should be avoided whenever
possible.

Application
Considerations
Q Fan Sound Data
Trane Q fans are designed to be used in
any installation where a standard airfoil
centrifugal fan can be used. The sound
level of the Q fan in the difficult to
attenuate lower frequencies is lower
than that produced by standard airfoil
centrifugal fans with the same capacity.
Sound levels in the higher octave
bands compare favorably. Therefore,
the Q fan will provide quieter sound
levels in a typical installation.
Designing the system for lower static
pressures and selecting the fan at high
efficiency will result in quieter fan
operation, as well as power savings.
The best method of acoustical design
makes use of unit sound power levels
in all eight octave bands. These sound
power levels for each Trane Q fan can
be obtained from the Trane
computerized fan selection program.
In the past, it has been an industry
practice to test air moving devices
within a reverberating room to
determine total sound power. This has
presented the problem of
distinguishing between inlet and
discharge sound power ratings, where
significant differences do exist.
Trane engineers solved this problem by
locating the fan adjacent to the
reverberating room and ducting to it.
By turning the fan around, inlet and
discharge sound power can be
measured separately and accurately.
By ducting both the inlet and outlet,
radiated shell sound power was
determined. Using this method with
the Trane reverberant room that
conforms to ASHRAE standards,
acoustical data on the Q fan is
substantially more accurate than fan
ratings made using conventional
techniques. Tests covered all sizes and
speeds over the entire performance
range of the line. A computer program
was then used to determine the precise
relationship of speed, size, point of
operation and frequency.

Trane Acoustics Program
Trane has a system level acoustics
computer program that accurately
converts fan sound power to room NC
levels. This program uses ASHRAE
approved algorithms and is the most
complete and accurate sound predictive
program in the HVAC industry. Use of
the Trane acoustics program allows all
sound paths to be checked and
attenuated to achieve the desired room
sound levels without costly
overdesigning. Contact your Trane sales
engineer for more details on this
Customer Direct Service (C.D.S.)
Network program.
Q Fan/Super Q II Plus Silencers
Trane has a unique silencer for the
Q fan. This low turbulence, high
attenuation silencer dramatically
reduces airborne noise from the Q-Fan.
A bulleted cylindrical silencer attenuates
medium and high frequency noise
generated by the Q Fan to a point where
the Q Fan can be successfully installed
in such sound sensitive applications as
ceiling plenums successfully.
Trane’s Plus silencer has a field
repositionable bullet (center body) that
can be relocated close to the Q Fan
outlet. This unique feature eliminates
low frequency turbulence and makes
the Q fan quieter than plug fans or other
axial or mixed flow fans. Pressure drop
through the Plus silencer is
approximately .1-inch sp. The Plus
silencer has been used on many
projects in the last five years to
consistently create NC 15-35 spaces.

Plus silencer attenuation is shown in
Tables S-1 and S-2. Use the Trane fan
selection program to obtain precise
Plus attenuation with regenerated
noise included.
Trane ASA10B Sound Analyzer
Trane offers a low cost 10 octave
band sound analyzer for sound
measurements. Capable of measuring
noise from 30 to 123 db sound
pressure with flat, dbA and dbC sound
LCb weightings this rugged meter
permits comparative and absolute
sound measurements to be taken.
Ideas On How To Use The ASA10B
The ASA10B can be used on existing
jobs to measure equipment sound
levels by octave bands. Compare this
data with NC charts to determine what
frequencies need to be attenuated and
by how much. The type and cost of
noise control options is a function of
the problem frequency and amplitude.
On acoustical retrofits, the ASA10B can
accurately compare before and after
noise levels. Real measurements
establish the benefit of the retrofit.

Table A-5 — Inlet Vane Sound Data
Octave
Band
1
2
3
4
5
6
7
8

MidFrequency
63
125
200
500
1,000
2,000
4,000
8,000

20

Wide
Open
+4
+8
+7
+4
0
0
0
0

DB Addition For Vane Position Indicated
75%
50%
25%
W/Open
W/Open
W/Open
+8
+12
+14
+9
+9
+10
+8
+9
+9
+5
+6
+6
0
0
0
0
0
0
0
0
0
0
0
0

Selection
Procedure
1
Select the type of fan desired. The
Super Q II should be used where fan
radiation noise needs to be attenuated.
2
Position the Q fan to deliver air to the
system and minimize adverse Kt effects.
Straight-thru flow arrangements are
best.
3
Select the desired Q fan or Super Q II
fan options.
4
Compute the fan external static pressure
and cfm requirements.
5
Determine which Kt effects apply to the
Q fan installation.
6
If the Q fan is serving a VAV system,
select AC frequency drive or inlet vane
modulations. (AC frequency drive
modulation is considerably quieter and
more efficient than Q fan inlet vanes.)
Super Q II fans use AC frequency drive
modulation only.

7
Input the selection parameters into the
Trane fan selection program and select
the desired Q fan or proceed with a
manual selection.
8
Manual Selection:
a
Determine the air density ratio if nonstandard air is being handled by the
Q fan.
b
Adjust the external sp by the air density
ratio.
c
Use the inlet and outlet area of the fan
to calculate the inlet and outlet
velocities. Use these velocities and the
inlet and outlet Kt to correct the
external static pressure to the right
value. Reselect the fan at the right
value.
d
From the performance table, select the
desired fan.

9
If inlet vane modulation was selected,
increase the rpm by 1 percent and
increase the bhp by 3 percent.
10
If the air density ratio is nonstandard
(different than 1.00), the rpm is correct
and the bhp must be multiplied by the
air density ratio.
11
If the start-up air temperature is lower
than the normal operating
temperature, adjust the fan curve bhp
for the starting temperature. The next
larger nominal hp motor is the correct
motor size.
12
If exceptional quiet is desired, choose a
short or long Q fan plus duct silencer.
The plus silencer is a low turbulence,
low pressure drop, high attenuation
duct silencer. Subtract the attenuations
given in Tables S-1 and S-2 from the
Q fan/Super Q II fan sound power
projections. If silencer regenerated
noise is a concern, contact your local
Trane sales engineer for further
information.

Table S-1 — Short Plus Silencer Attenuation (1D Length)*
Fan Size
16
19
21
24
27
30
36
40
44

63 Hz
2
2
2
3
3
4
4
5
5

Q-Fan Sound Power By Octave Band At Nominal Cfm/SP
125 HZ
250 Hz
500 Hz 1000 Hz
2000 Hz
4000 Hz
3
10
16
19
20
13
3
10
16
19
19
13
4
10
16
19
19
13
4
10
16
19
19
13
5
10
16
19
19
13
5
10
16
19
17
13
6
10
16
19
15
13
6
11
16
19
14
12
6
11
16
19
14
11

8000 Hz
12
12
11
10
9
9
9
9
9

Table S-2 — Long Plus Silencer Attenuation (2D Length)*
Fan Size
16
19
21
24
27
30
36
40
44

63 Hz
3
3
4
5
6
7
8
9
9

Q-Fan Sound Power By Octave Band At Nominal Cfm/SP
125 HZ
250 Hz
500 Hz 1000 Hz
2000 Hz
4000 Hz
6
19
32
37
39
26
6
19
32
37
37
26
7
19
32
37
37
26
8
19
32
37
37
26
9
19
32
37
37
26
9
20
32
37
34
26
11
20
32
37
30
25
11
21
32
37
28
23
12
21
32
37
28
22

8000 Hz
24
24
22
20
18
18
18
18
18

*Approximate attenuations. Use the Trane Fan Selection Program for attenuation predictions that include silencer
regenerated self-noise.
NOTE: Super Q II not available with Class III fans.

21

Fan Size 16”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

16.5 inches
2.05 square feet
1.70 square feet
4.32 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 16

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

419 mm
0.190 m2
0.158 m2
1.317
m/minute

Maximum RPM
2585
3460
4660

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
486
324

Table P-1 — Size 16 Q-Fan
CFM
Std.
Air
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600

Outlet
Vel.
588
705
823
941
1058
1176
1294
1411
1529
1647
1764
1882
2000
2117
2235
2352
2470
2588
2705
2823
2941
3058
3176
3294

/4”
RPM
934
1071
1214
1360
1509
1660
1812
1965
2120
2274
2430
2586
2742
2898
3055
3212
3369
3526
3684
3841
3999
4157
4314
4472

BHP
0.08
0.12
0.16
0.22
0.30
0.39
0.50
0.62
0.77
0.95
1.15
1.38
1.63
1.92
2.24
259
298
3.41
3.88
4.39
4.95
5.55
6.20
6.89

/8”
RPM BHP
1002 0.11
1127 0.14
1263 0.20
1404 0.26
1548 0.34
1695 0.43
1844 0.54
1995 0.68
2147 0.83
2300 1.01
2454 1.21
2608 1.44
2763 1.70
2918 1.99
3074 2.32
3230 2.68
3386 3.07
3543 3.50
3699 3.98
3856 4.49
4013 5.05
4170 5.65
4328 6.31
4485 7.01

/2”
RPM BHP
1068 0.13
1184 0.17
1311 0.231
1447 0.30
1587 0.38
1731 0.48
1877 0.59
2025 0.73
2175 0.89
2326 1.07
2478 1.28
2630 1.51
2784 1.77
2938 2.07
3093 2.40
3248 2.76
3403 3.16
3559 3.59
3715 4.07
3871 4.59
4027 5.15
4184 5.76
4341 6.42
4498 7.12

/8”
RPM BHP
1137 0.16
1239 0.20
1360 0.26
1489 0.33
1626 0.42
1766 0.52
1909 0.64
2054 0.78
2202 0.94
2351 1.13
2501 1.34
2653 1.58
2805 1.85
2958 2.15
3112 2.48
3266 2.84
3420 3.25
3575 3.69
3730 4.17
3886 4.69
4042 5.26
4198 5.87
4354 6.53
4511 7.24

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
1204 0.19
1344 0.27
1295 0.24
1408 0.31
1408 0.29
1502 0.37
1531 0.37
1617 0.45
1662 0.46
1739 0.54
1800 0.57
1867 0.65
1941 0.69
2002 0.78
2084 0.84
2142 0.94
2229 1.00
2283 1.12
2376 1.19
2427 1.32
2525 1.41
2573 1.54
2675 1.65
2720 1.79
2826 1.92
2868 2.07
2978 2.22
3018 2.38
3130 2.56
3168 2.72
3284 2.93
3319 3.10
3437 3.34
3471 3.52
3591 3.78
3624 3.97
3746 4.26
3777 4.46
3901 4.79
3931 5.00
4056 5.36
4085 5.57
4212 5.98
4239 6.20
4367 6.64
4394 6.87
4523 7.36
4549 7.59

CFM
Std.
Air
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400

Outlet
Vel.
941
1058
1176
1294
1411
1529
1647
1764
1882
2000
2117
2235
2352
247C
2588
2705
2823
2941
3058
3176

2 1/4”
RPM BHP
2040 0.94
2112 1.04
2205 1.18
2307 1.33
2425 1.50
2546 1.71
2671 1.94
2801 2.20
2935 2.49
3074 2.83
3213 3.18
3354 3.57
3497 3.99
3641 4.44
3786 4.94
3932 5.47
4079 6.04
4228 6.66
4377 7.32
4526 8.03

2 1/2”
RPM BHP
2129 1.06
2188 1.16
2274 1.30
2369 1.45
2478 1.63
2598 1.84
2720 2.07
2846 2.34
2977 2.63
3112 2.96
3251 3.34
3390 3.74
3531 4.17
3674 4.63
3818 5.13
3963 5.67
4109 6.25
4256 6.88
4404 7.55
4553 8.27

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

2343
2407
2495
2590
2698
2817
2938
3063
3192
3324
3460
3601
3740
3881
4024
4168
4313
4459
4605

2482
2546
2616
2705
2801
2909
3028
3149
3272
3400
3532
3666
3806
3944
4085
4226
4369
4513
4658

CFM
Std.
Air
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
4100

Outlet
Vel.
1529
1588
1647
1705
1764
1823
1882
1941
2000
2058
2117
2176
2235
2294
2352
2411

7”
RPM
3548
3568
3593
3622
3656
3694
3740
3783
3829
3876
3923
3973
4026
4081
4137
4198

7 1/2”
RPM BHP

8”
RPM BHP

8 1/2”
RPM BHP

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

3674
3694
3719
3749
3783
3821
3866
3909
3954
4001
4049
4097
4149
4203
4259

3797
3817
3843
3872
3906
3944
3989
4032
4077
4124
4171
4219
4271
4324

3916
3937
3963
3993
4027
4065
4106
4153
4198
4244
4292
4339
4390

3980
4033
4055
4081
4111
4145
4183
4224
4272
4316
4362
4410
4457

4239 8.29
4259 8.46
4282 8.64
4309 8.84
4340 9.04
4375 9.27
4414 9.51
4459 9.81
4503 10.08
4547 10.37
4593 10.66

4348
4368
4392
4420
4452
4487
4526
4572
4615
4660

4400
4455
4476
4501
4530
4562
4598
4637

1

3

BHP
4.86
4.98
5.11
5.25
5.41
5.58
5.78
5.98
6.18
6.39
6.62
6.85
7.10
7.35
7.61
7.88

5.40
5.53
5.67
5.82
5.99
6.17
6.39
6.60
6.81
7.04
7.27
7.53
7.78
8.05
8.32

1

1.42
1.54
1.71
1.90
2.11
2.35
2.62
2.93
3.27
3.64
4.05
4.52
5.01
5.53
6.09
6.68
7.33
8.01
8.75

5.97
6.11
6.26
6.42
6.59
6.79
7.02
7.24
7.47
7.71
7.96
8.23
8.50
8.78

5

1.66
1.82
1.98
2.18
2.40
2.65
2.93
3.24
3.59
3.97
4.39
4.85
5.38
5.92
6.50
7.12
7.78
8.48
9.23

6.55
6.71
6.87
7.04
7.23
7.43
7.65
7.91
8.15
8.41
8.67
8.95
9.24

3

2688
2741
2816
2908
3005
3114
3233
3353
3477
3604
3734
3868
4004
4144
4284
4425
4567

2.12
2.28
2.47
2.71
2.97
3.25
3.57
3.92
4.31
4.74
5.21
5.72
6.27
6.91
7.55
8.22
8.95

6.85
7.17
7.33
7.50
7.68
7.88
8.10
8.33
8.61
8.86
9.13
9.41
9.71

2869
2930
3013
3104
3203
3313
3433
3553
3677
3803
3933
4066
4201
4341
4480
4620

2.60
2.78
3.02
3.29
3.58
3.91
4.27
4.66
5.10
5.58
6.10
6.67
7.27
7.97
8.67
9.41

4091 7.45
4147 7.80
4169 7.97
4196 8.16
4227 8.35
4261 8.56
4299 8.79
4340 9.04
4388 9.33
4433 9.60
4478 9.88
4526 10.17

1 1/4”
RPM BHP

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

1523
1601
1698
1814
1936
2064
2197
2337
2477
2620
2764
2910
3057
3206
3355
3505
3656
3808
3961
4113
4267
4420
4574

1642
1697
1785
1886
2004
2127
2254
2387
2526
2666
2808
2951
3096
3243
3391
3539
3689
3839
3990
4142
4294
4447
4600

1796 0.64 1898
1870 0.72 1953
1961 0.831 2039
2068 0.95 2135
2188 1.10 2249
2311 1.27 2369
2440 1.46 2493
2573 1.68 2622
2712 1.94 2755
2851 2.22 2894
2993 2.53 3033
3136 2.86 3174
3280 3.23 3317
3426 3.63 3461
3573 4.07 3607
3721 4.54 3754
3870 5.06 3901
4020 5.62 4050
4171 6.22 4199
4322 6.87 4349
4473 7.56 4500
4626 8.31 4651

0.39
0.45
0.53
0.63
0.74
0.88
1.04
1.23
1.44
1.67
1.93
2.22
2.54
2.89
3.28
3.70
4.16
4.66
5.20
5.79
6.42
7.10
7.83

0.48
0.54
0.62
0.73
0.84
0.99
1.15
1.34
1.57
1.81
2.08
2.37
2.70
3.06
3.45
3.88
4.35
4.86
5.41
6.00
6.64
7.33
8.06

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

2999
3046
3114
3203
3296
3396
3507
3628
3748
3872
3998
4128
4260
4395
4535

3164
3220
3296
3387
3481
3586
3698
3819
3940
4064
4190
4319
4452
4586

3284
3328
3393
3479
3569
3665
3772
3889
4008
4129
4253
4379
4508
4641

2.94
3.12
3.34
3.62
3.92
4.26
4.63
5.03
5.47
5.96
6.50
7.07
7.68
8.35
9.11

3.48
3.69
3.96
4.28
4.63
5.00
5.41
5.86
6.35
6.89
7.48
8.11
8.78
9.50

8.96
9.14
9.33
9.54
9.76
10.00
10.26
10.57
10.86
11.16

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.

22

0.75
0.82
0.93
1.06
1.21
1.38
1.58
1.81
2.06
2.36
2.68
3.02
3.40
3.81
4.25
4.74
5.26
5.83
6.44
7.09
7.80
8.55

3.85
4.07
4.32
4.65
5.00
5.39
5.81
6.26
6.76
7.30
7.89
8.54
9.22
9.95

9.24
9.65
9.85
10.05
10.27
10.50
10.76
11.03

3438
3492
3565
3655
3748
3847
3955
4074
4193
4315
4438
4565

4501
4560
4582
4608
4637

4.46
4.71
5.01
5.39
5.77
6.21
6.67
7.18
7.72
8.32
8.98
9.67

9.92
10.37
10.57
10.79
11.02

Performance
Data

Q Fan and
Super Q II
Size 16

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1-2
—

Q Fan Size 16”
Min - Max
Motor HP
Class 2
1.5 - 5
—

Min - Max
Motor HP
Class 3
5 - 15
5 - 15

23

Super Q Fan Size 16”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1-2
1.5 - 5
NA
NA

Fan Size 19”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

19.0 inches
2.61 square feet
2.30 square feet
4.97 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 19

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

483 mm
0.242 m2
0.214 m2
1.515
m/minute

Maximum RPM
2345
3145
4040

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
417
278

Table P-2 — Size 19 Q Fan
CFM
Std.
Air
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600

Outlet
Vel.
869
956
1043
1130
1217
1304
1391
1478
1565
1652
1739
1826
1913
1999
2086
2173
2260
2347
2434
2521
2608
2695
2782
2869

/4”
RPM BHP
907 0.15
977 0.18
1049 0.22
1123 0.26
1198 0.31
1273 0.36
1350 0.42
1427 0.49
1504 0.57
1582 0.66
1660 0.75
1738 0.86
1817 0.97
1896 1.09
1974 1.23
2053 1.37
2133 1.53
2212 1.70
2291 1.88
2371 2.08
2450 2.29
2530 2.51
2610 2.75
2689 3.00

/8”
RPM BHP
962 0.19
1026 0.23
1093 0.27
1163 0.31
1234 0.36
1307 0.42
1381 0.48
1456 0.55
1531 0.64
1608 0.72
1684 0.82
1761 0.93
1839 1.04
1916 1.17
1994 1.31
2073 1.46
2151 1.62
2229 1.79
2308 1.98
2387 2.17
2466 2.39
2545 2.61
2624 2.85
2704 3.11

/2”
RPM BHP
1019 0.24
1078 0.28
1140 0.32
1205 0.36
1272 0.42
1342 0.48
1413 0.54
1486 0.62
1559 0.70
1634 0.79
1709 0.89
1785 1.00
1861 1.12
1938 1.25
2015 1.39
2092 1.54
2169 1.71
2247 1.88
2325 2.07
2404 2.27
2482 2.49
2560 2.72
2639 2.96
2718 3.22

/8”
RPM BHP
1074 0.29
1129 0.33
1187 0.37
1248 0.42
1312 0.48
1378 0.54
1446 0.61
1517 0.69
1588 0.77
1661 0.86
1734 0.97
1809 1.08
1884 1.20
1959 1.33
2035 1.48
2111 1.63
2188 1.80
2265 1.98
2343 2.17
2420 2.37
2498 2.59
2576 2.82
2654 3.07
2732 3.33

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
1124 0.34
1235 0.45
1179 0.38
1272 0.49
1234 0.43
1325 0.55
1292 0.48
1378 0.60
1352 0.54
1433 0.67
1415 0.60
1491 0.74
1481 0.67
1551 0.82
1548 0.75
1614 0.90
1617 0.84
1679 0.99
1688 0.94
1745 1.09
1760 1.04
1813 1.20
1833 1.16
1883 1.32
1907 1.28
1954 1.45
1981 1.42
2026 1.59
2056 1.56
2098 1.74
2131 1.72
2172 1.91
2207 1.89
2246 2.08
2283 2.07
2320 2.27
2360 2.26
2396 2.47
2437 2.47
2471 2.68
2514 2.69
2547 2.90
2592 2.93
2623 3.14
2669 3.18
2700 3.40
2747 3.44
2777 3.67

1 1/4”
RPM BHP
1351 0.57
1375 0.62
1409 0.67
1456 0.73
1512 0.80
1566 0.88
1622 0.97
1681 1.06
1741 1.15
1804 1.26
1868 1.37
1934 1.50
2002 1.63
2071 1.78
2142 1.93
2213 2.10
2285 2.28
2358 2.47
2432 2.67
2506 2.89
2580 3.12
2655 3.37
2731 3.63
2806 3.90

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

1481
1505
1538
1583
1638
1692
1747
1804
1864
1925
1988
2053
2119
2186
2256
2326
2397
2469
2541
2614
2688
2762
2837

1602
1627
1660
1704
1759
1812
1867
1923
1982
2042
2104
2168
2233
2299
2367
2436
2506
2577
2649
2721
2794
2868

CFM
Std.
Air
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400

Outlet
Vel.
1217
1304
1391
1478
1565
1652
1739
1826
1913
1999
2086
2173
2260
2347
2434
2521
2608
2695
2782
2869
2956
3043
3130
3217

2 1/4”
RPM BHP
1826 1.42
1853 1.52
1887 1.60
1931 1.70
1987 1.84
2040 1.97
2094 2.11
2150 2.27
2207 2.42
2266 2.58
2327 2.76
2389 2.94
2453 3.14
2518 3.35
2584 3.57
2651 3.81
2720 4.06
2789 4.33
2859 4.61
2930 4.90
3002 5.21
3075 5.54
3147 5.88
3221 6.24

2 1/2”
RPM BHP
1908 160
1930 170
1959 1.79
1994 1.89
2040 2.01
2096 2.16
2149 2.31
2203 2.46
2259 2.63
2316 2.80
2374 2.98
2434 3.17
2496 3.37
2559 3.59
2624 3.81
2690 4.05
2756 4.31
2824 4.58
2893 4.86
2963 5.16
3033 5.48
3104 5.81
3176 6.16
3249 6.53

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

2105
2130
2162
2201
2249
2306
2359
2413
2469
2525
2584
2644
2704
2767
2831
2896
2962
3028
3096
3165
3235
3305

2267
2290
2320
2355
2399
2449
2507
2561
2615
2671
2728
2786
2846
2906
2968
3031
3096
3162
3227
3295
3363

2419
2442
2470
2503
2544
2592
2649
2702
2756
2811
2867
2924
2982
3042
3102
3164
3227
3292
3357
3423

2702
2725
2751
2783
2819
2863
2912
2971
3024
3078
3132
3188
3245
3303
3362
3422
3482
3544

4.56
4.74
4.95
5.14
5.32
5.56
5.82
6.14
6.44
6.74
7.06
7.40
7.74
8.09
8.45
8.83
9.22
9.63

2835 5.26
2858 5.46
2883 5.70
2915 5.91
2949 6.10
2992 6.35
3040 6.63
3099 6.99
3152 7.31
3205 7.64
3260 7.98
3315 8.35
3371 8.72
3428 9.10
3487 9.49
3546 9.89
3605 10.31

2962 6.01
2985 6.23 3085 6.80
3011 6.49 3108 7.04
3042 6.72 3134 7.32
3076 6.92 3166 7.57
3118 7.19 3199 7.79
3166 7.49 3241 8.08
3224 7.87 3288 8.40
3277 8.22 3339 8.76
3330 8.58 3398 9.19
3384 8.95 3452 9.57
3439 9.35 3505 9.96
3494 9.75 3560 10.37
3551 10.15 3615 10.82
3609 10.57 3672 11.26
3668 11.00 3729 11.70

CFM
Std.
Air
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
7800

Outlet
Vel.
2086
2173
2260
2347
2434
2521
2608
2695.
2782
2869
2956
3043
3130
3217
3304
3391

7”
RPM BHP
3205 7.63
3227 7.93
3254 8.20
3286 8.46
3319 8.70
3361 9.01
3407 9.35
3458 9.73
3518 10.20
3571 10.61
3625 11.03
3679 11.47
3734 11.95
3790 12.41
3847 12.89
3905 13.38

7 1/2”
RPM BHP

8”
RPM BHP

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

3321 8.50
3343 8.83
3371 9.12
3403 9.40
3436 9.65
3478 9.98
3524 10.35
3575 10.76
3635 11.26
3688 11.69
3741 12.14
3796 12.61
3850 13.12
3906 13.62
3963 14.12

3412
3434
3457
3485
3517
3551
3593
3639
3689
3750
3803
3856
3910
3965
4020

1

3

1

2.17
2.30
2.41
2.53
2.68
2.87
3.05
3.23
3.44
3.64
3.85
4.08
4.31
4.56
4.83
5.11
5.40
5.71
6.03
6.38
6.73
7.11

9.15
9.42
9.77
10.08
10.38
10.65
11.00
11.40
11.83
12.36
12.83
13.31
13.80
14.31
14.87

5

2.70
2.85
2.98
3.11
3.27
3.46
3.68
3.89
4.11
4.35
4.59
4.84
5.10
5.37
5.66
5.96
6.28
6.61
6.96
7.33
7.71

8 1/2”
RPM BHP
3522
3544
3567
3596
3629
3663
3705
3752
3802
3862
3916
3969

10.08
10.38
10.76
11.08
11.41
11.69
12.07
12.49
12.95
13.52
14.01
14.52

3

3.28
3.44
3.59
3.73
3.91
4.11
4.36
4.60
4.84
5.11
5.37
5.64
5.93
6.23
6.54
6.86
7.21
7.56
7.94
8.33

2564
2587
2614
2647
2684
2729
2786
2839
2892
2946
3001
3058
3115
3174
3234
3294
3356
3419
3483

3.90
4.06
4.25
4.42
4.59
4.81
5.08
5.35
5.61
5.89
6.20
6.50
6.81
7.13
7.47
7.82
8.19
8.57
8.97

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP

3629
3652
3676
3706
3739
3773
3816
3863
3913
3974

11.06
11.38
11.78
12.13
12.47
12.78
13.18
13.63
14.11
14.72

3734
3758
3782
3813
3847
3882
3925
3972

12.08
12.43
12.85
13.22
13.58
13.91
14.34
14.81

3816
3838
3860
3887
3918
3953

12.80
13.14
13.58
13.97
14.35
14.73

0.75
0.81
0.87
0.94
1.03
1.12
1.22
1.32
1.43
1.55
1.68
1.82
1.97
2.13
2.30
2.48
2.68
2.89
3.11
3.35
3.60
3.86
4.14

3916 13.88
3939 14.24
3962 14.72

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.

24

0.95
1.02
1.09
1.17
1.27
1.38
1.49
1.61
1.74
1.87
2.01
2.16
2.33
2.51
2.69
2.90
3.11
3.34
3.58
3.83
4.10
4.39

1717
1742
1775
1820
1875
1928
1982
2038
2096
2156
2216
2279
2344
2410
2476
2544
2614
2684
2755
2826
2899

118
126
133
142
1.55
166
1.79
193
2.07
2.21
2.37
2.54
2.72
291
312
3.34
3.57
3.82
4.08
4.35
4.64

Performance
Data

Q Fan and
Super Q II
Size 19

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1-3
—

Q Fan Size 19”
Min - Max
Motor HP
Class 2
3 - 7.5
—

Min - Max
Motor HP
Class 3
7.5 - 15
7.5 - 15

25

Super Q Fan Size 19”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1-3
3 - 7.5
NA
NA

Fan Size 21”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

21.5 inches
3.31 square feet
2.88 square feet
5.63 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 21

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

546 mm
0.308 m2
0.268 m2
1.716
m/minute

Maximum RPM
2070
2780
3740

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
380
253

Table P-3 — Size 21 Q-Fan
CFM
Std.
Air
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200

Outlet
Vel.
902
972
1041
1111
1180
1250
1319
1388
1458
1527
1597
1666
1736
1805
1875
1944
2013
2083
2152
2222
2291
2361
2430
2500

/4”
RPM BHP
810 0.20
859 0.23
909 0.26
959 0.30
1011 0.35
1062 0.40
1115 0.45
1167 0.51
1220 0.58
1273 0.65
1327 0.73
1380 0.81
1434 0.90
1488 1.00
1542 1.11
1596 1.22
1651 1.34
1705 1.47
1759 1.61
1814 1.76
1869 1.91
1923 2.08
1978 2.25
2033 2.44

/8”
RPM BHP
859 0.25
903 0.29
949 0.33
996 0.37
1045 0.41
1094 0.47
1145 0.52
1196 0.59
1247 0.65
1299 0.73
1351 0.81
1403 0.90
1456 0.99
1509 1.09
1562 1.20
1616 1.32
1669 1.44
1723 1.57
1777 1.71
1831 1.86
1885 2.02
1939 2.19
1993 2.37
2048 2.56

/2”
RPM BHP
908 0.31
949 0.35
991 0.39
1035 0.44
1081 0.48
1128 0.54
1176 0.60
1225 0.66
1274 0.73
1325 0.81
1376 0.89
1427 0.98
1479 1.08
1531 1.18
1583 1.30
1636 1.41
1688 1.54
1741 1.68
1795 1.82
1848 1.97
1902 2.14
1955 2.31
2009 2.49
2063 2.68

/8”
RPM BHP
957 0.38
995 0.42
1034 0.46
1075 0.51
1118 0.56
1163 0.61
1208 0.68
1255 0.74
1303 0.82
1352 0.90
1401 0.98
1451 1.07
1502 1.17
1553 1.28
1604 1.39
1656 1.52
1708 1.65
1760 1.78
1813 1.93
1865 2.09
1918 2.25
1971 2.43
2025 2.61
2078 2.80

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
1001 0.44
1096 0.58
1039 0.48
1121 0.62
1077 0.53
1155 0.67
1116 0.58
1194 0.74
1156 0.64
1231 0.80
1198 0.70
1270 0.86
1242 0.76
1309 0.93
1286 0.83
1350 1.01
1332 0.90
1393 1.09
1379 0.99
1436 1.17
1427 1.07
1481 1.27
1476 1.17
1527 1.37
1525 1.27
1573 1.47
1575 1.38
1621 1.59
1625 1.50
1669 1.71
1676 1.62
1718 1.84
1727 1.75
1768 1.97
1779 1.89
1817 2.12
1831 2.04
1868 2.27
1883 2.20
1919 2.44
1935 2.37
1970 2.61
1988 2.55
2021 2.79
2041 2.73
2073 2.99
2093 2.93
2125 3.19

1 1/4”
RPM BHP
1197 0.74
1214 0.79
1236 0.83
1265 0.89
1302 0.96
1339 1.04
1376 1.11
1415 1.20
1454 1.28
1495 1.37
1536 1.47
1580 1.58
1624 1.69
1669 1.80
1715 1.93
1761 2.06
1809 2.21
1857 2.36
1906 2.52
1955 2.68
2005 2.86
2055 3.05
2106 3.25
2156 3.45

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

1308
1323
1344
1369
1401
1440
1477
1515
1553
1593
1633
1675
1718
1762
1806
1852
1898
1945
1993
2041
2090
2139
2189

1411
1426
1445
1469
1499
1537
1573
1610
1648
1687
1727
1767
1809
1852
1895
1940
1986
2031
2078
2125
2173
2222

CFM
Std.
Air
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
7800
8000
8200

Outlet
Vel.
1250
1319
1388
1458
1527
1597
1666
1736
1805
1875
1944
2013
2083
2152
2222
2291
2361
2430
2500
2569
2638
2708
2777
2847

2 1/4”
RPM BHP
1615 1.83
1633 1.92
1656 2.01
1682 2.10
1715 2.21
1754 2.35
1791 2.48
1828 2.62
1866 2.77
1904 2.92
1944 3.07
1984 3.23
2026 3.40
2067 3.58
2111 3.77
2154 3.96
2199 4.17
2244 4.38
2290 4.61
2336 4.85
2384 5.09
2431 5.35
2479 5.62
2528 5.90

2 1/2”
RPM BHP
1687 2.06
1703 2.14
1721 2.25
1743 2.35
1769 2.44
1801 2.56
1840 2.72
1877 2.86
1914 3.01
1951 3.17
1989 3.34
2029 3.51
2069 3.68
2109 3.87
2151 4.06
2193 4.26
2236 4.47
2281 4.69
2325 4.92
2371 5.16
2416 5.41
2463 5.67
2510 5.95
2558 6.24

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1852
1868
1887
1910
1935
1966
2001
2042
2078
2116
2153
2192
2231
2272
2312
2354
2396
2439
2483
2528
2573
2619

2007
2023
2043
2067
2092
2124
2158
2199
2236
2273
2311
2349
2388
2428
2468
2509
2550
2593
2636
2680

2137
2153
2170
2192
2215
2243
2275
2310
2351
2388
2425
2462
2500
2539
2579
2619
2659
2701
2742

2394
2410
2428
2449
2471
2499
2529
2563
2604
2641
2678
2715
2752
2790
2829
2868

5.90
6.09
6.31
6.50
6.66
6.88
7.11
7.37
7.70
7.99
8.29
8.59
8.90
9.25
9.58
9.92

2507 6.76
2522 6.96
2539 7.20
2559 7.41
2582 7.62
2606 7.81
2635 8.05
2667 8.33
2702 8.62
2744 8.99
2780 9.31
2817 9.64
2855 9.98
2892 10.32
2930 10.71

2615
2631
2646
2666
2688
2710
2738
2769
2803
2844
2880
2917
2954
2991

CFM
Std.
Air
6000
6200
6400
6600
6800
7000
7200
7400
7600
7800
8000
8200
8400
8600
8800
9000

Outlet
Vel.
2083
2152
2222
2291
2361
2430
2500
2569
2638
2708
2777
2847
2916
2986
3055
3125

7”
RPM BHP
2821 9.60
2836 9.84
2851 10.15
2870 10.42
2891 10.68
2914 10.95
2937 11.18
2966 11.49
2997 11.83
3031 12.19
3073 12.66
3110 13.07
3146 13.48
3183 13.90
3220 14.32
3258 14.76

7 1/2”
RPM BHP

8”
RPM BHP

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

1

3

2919 10.64
2934 10.89
2951 11.16
2967 11.51
2988 11.79
3011 12.08
3033 12.32
3061 12.64
3092 12.99
3125 13.37
3160 13.78
3203 14.30
3239 14.74

1

3015
3030
3046
3063
3083
3105
3127
3154
3184
3217

2.73
2.85
2.97
3.08
3.19
3.34
3.50
3.69
3.87
4.06
4.26
4.46
4.66
4.87
5.09
5.32
5.56
5.81
6.07
6.34
6.63
6.92

11.71
11.98
12.27
12.64
12.95
13.25
13.50
13.84
14.21
14.60

5

3.49
3.64
3.77
3.91
4.04
4.20
4.39
4.62
4.83
5.04
5.26
5.50
5.74
5.98
6.23
6.49
6.76
7.04
7.33
7.64

8 1/2”
RPM BHP

3108
3123
3139
3155
3175
3197
3222

12.83
13.11
13.43
13.82
14.15
14.47
14.80

3

4.19
4.33
4.51
4.66
4.80
4.97
5.16
5.38
5.65
5.88
6.12
6.37
6.65
6.91
7.19
7.47
7.76
8.06
8.38

2261
2276
2292
2312
2335
2359
2388
2421
2461
2498
2535
2572
2609
2647
2686
2725
2765
2806

4.94
5.09
5.29
5.46
5.63
5.79
5.99
6.22
6.51
6.77
7.03
7.31
7.59
7.90
8.20
8.50
8.82
9.14

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP

0.96
1.02
1.07
1.13
1.21
1.30
1.39
1.48
1.58
1.69
1.80
1.91
2.03
2.16
2.30
2.45
2.60
2.77
2.94
3.12
3.32
3.52
3.73

3199 13.99
3214 14.29
3230 14.62

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
26

1.20
1.27
1.34
1.40
1.48
1.58
1.68
1.79
1.91
2.02
2.15
2.27
2.41
2.55
2.70
2.86
3.03
3.21
3.39
3.59
3.80
4.01

7.66
7.87
8.14
8.37
8.60
8.79
9.05
9.33
9.64
10.04
10.38
10.74
11.10
11.47

1507
1523
1541
1564
1592
1626
1665
1702
1739
1778
1817
1857
1898
1940
1982
2026
2071
2116
2162
2208
2256

2720
2735
2751
2769
2791
2815
2839
2869
2901
2936
2978
3014
3051

1.46
1.53
1.62
1.69
1.78
1.88
2.01
2.12
2.25
2.38
2.52
2.66
2.81
296
3.13
3.30
3.48
3.67
3.87
4.09
4.31

8.61
8.83
9.12
9.37
9.62
9.87
10.09
10.39
10.71
11.06
11.50
11.88
12.26

Performance
Data

Q Fan and
Super Q II
Size 21

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1-5
—

Q Fan Size 21”
Min - Max
Motor HP
Class 2
3 - 10
—

Min - Max
Motor HP
Class 3
10 - 15
10 - 15

27

Super Q Fan Size 21”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1-5
3 - 10
NA
NA

Fan Size 24”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

24.5 inches
4.32 square feet
3.73 square feet
6.41 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 24

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

622 mm
0.401 m2
0.347 m2
1.954
m/minute

Maximum RPM
1772
2380
3200

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
535
356

Table P-4 — Size 24 Q-Fan
CFM
Std.
•Air
3000
3400
3800
4200
4600
5000
5400
5800
6200
6600
7000
7400
7800
8200
8600
9000
9400
9800
10200
10600
11000
11400
11800
12200

Outlet
Vel.
804
911
1018
1126
1233
1340
1447
1554
1662
1769
1876
1983
2091
2198
2305
2412
2520
2627
2734
2841
2949
3056
3163
3270

/4”
RPM BHP
639
0.2
703
0.3
769
0.3
836
0.4
905
0.5
974
0.6
1044
0.7
1114
0.9
1185
1.0
1256
1.2
1328
1.4
1399
1.7
1471
1.9
1544
2.2
1616
2.5
1688
2.8
1761
3.2
1833
3.6
1906
4.0
1979
4.5
2052
5.0
2125
5.6
2198
6.1
2271
6.7

/8”
RPM BHP
685 0.3
741 0.3
803 0.4
867 0.5
933 0.6
1000 0.7
1068 0.8
1137 1.0
1206 1.2
1276 1.3
1346 1.6
1417 1.8
1488 2.1
1559 2.3
1631 2.7
1703 3.0
1775 3.4
1847 3.8
1919 4.2
1991 4.7
2064 5.2
2136 5.7
2209 6.3
2281 7.0

/2”
RPM BHP
730
0.3
782
0.4
837
0.5
897
0.6
961
0.7
1026
0.8
1092
0.9
1159
1.1
1227
1.3
1296
1.5
1365
1.7
1434
1.9
1505
2.2
1575
2.5
1646
2.8
1717
3.2
1788
3.5
1860
4.0
1932
4.4
2003
4.9
2075
5.4
2147
5.9
2220
6.5
2292
7.2

/8”
RPM BHP
773
0.4
822
0.5
874
0.6
929
0.7
989
0.8
1052
0.9
1116
1.0
1181
1.2
1248
1.4
1315
1.6
1383
1.8
1452
2.1
1521
2.3
1591
2.6
1661
3.0
1731
3.3
1802
3.7
1873
4.1
1944
4.6
2016
5.1
2087
5.6
2159
6.1
2231
6.7
2303
7.4

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
817
0.5
908
0.7
861
0.6
937
0.7
910
0.7
978
0.8
962
0.8
1027
1.0
1018
0.9
1078
1.1
1077
1.0
1132
1.2
1139
1.2
1188
1.4
1204
1.3
1248
1.6
1269
1.5
1310
1.8
1335
1.7
1374
2.0
1402
1.9
1439
2.2
1470
2.2
1505
2.5
1538
2.5
1571
2.8
1607
2.8
1639
3.1
1676
3.1
1706
3.4
1746
3.5
1775
3.8
1816
3.9
1844
4.2
1886
4.3
1913
4.7
1957
4.8
1982
5.1
2028
5.2
2052
5.6
2099
5.8
2122
6.2
2170
6.3
2193
6.7
2242
6.9
2264
7.4
2313
7.6
2334
8.0

CFM
Std.
Air
5000
5400
5800
6200
6600
7000
7400
7800
8200
8600
9000
9400
9800
10200
10600
11000
11400
11800
12200
12600
13000
13400
13800
14200

Outlet
Vel.
1340
1447
1554
1662
1769
1876
1983
2091
2198
2305
2412
2520
2627
2734
2841
2949
3056
3163
3270
3378
3485
3592
3699
3806

2 1/4”
RPM BHP
1397
2.5
1435
2.7
1479
2.9
1528
3.1
1578
3.4
1630
3.7
1684
4.0
1740
4.4
1797
4.7
1856
5.1
1918
5.6
1980
6.0
2045
6.6
2110
7.1
2175
7.6
2241
8.2
2307
8.9
2374
9.6
2441 10.3
2509 11.0
2577 11.8
2645 12.7
2714 13.5
2783 14.5

2 1/2”
RPM BHP
1451 2.8
1484 3.0
1524 3.2
1571 3.4
1619 3.7
1669 4.0
1721 4.3
1775 4.7
1831 5.1
1887 5.5
1947 5.9
2008 6.4
2070 6.9
2135 7.5
2199 8.1
2264 8.7
2330 9.3
2396 10.0
2462 10.7
2529 11.5
2597 12.3
2664 13.2
2733 14.1
2801 15.0

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1585
1615
1654
1697
1745
1794
1845
1898
1952
2008
2064
2124
2185
2247
2311
2375
2440
2505
2571
2637
2703
2770
2838

3.6
3.8
4.1
4.4
4.7
5.0
5.4
5.8
6.2
6.7
7.2
7.7
8.3
8.9
9.6
10.2
10.9
11.7
12.5
13.3
14.2
15.1
16.1

1710
1739
1776
1818
1866
1914
1964
2016
2069
2124
2179
2237
2296
2357
2419
2483
2547
2612
2677
2742
2808
2874

1806
1828
1857
1894
1935
1980
2029
2079
2130
2182
2236
2292
2347
2405
2465
2526
2588
2651
2716
2781
2845
2911

2025
2048
2078
2114
2155
2200
2249
2297
2347
2399
2452
2506
2562
2617
2675
2734
2795
2856
2919
2984

2128
2152
2182
2220
2260
2305
2354
2402
2452
2503
2556
2610
2665
2721
2777
2835
2895
2956
3018

2227
2252
2284
2322
2363
2407
2456
2505
2554
2606
2658
2711
2766
2822
2877
2935
2995
3055

CFM
Std.
Air
8600
9000
9400
9800
10200
10600
11000
11400
11800
12200
12600
13000
13400
13800
14200
14600

Outlet
Vel.
2305
2412
2520
2627
2734
2841
2949
3056
3163
3270
3378
3485
3592
3699
3806
3914

7”
RPM
2446
2480
2519
2561
2605
2655
2703
2753
2804
2856
2909
2963
3018
3073
3130
3189

7 1/2”
RPM BHP
2510 14.3
2539 14.8
2574 15.4
2614 16.1
2657 16.8
2702 17.6
2752 18.5
2800 19.3
2849 20.2
2900 21.1
2952 22.0
3005 23.0
3059 24.1
3115 25.2
3171 26.4

8”
RPM
2575
2600
2631
2667
2708
2751
2796
2846
2895
2945
2995
3047
3100
3154

BHP
15.3
15.9
16.5
17.2
17.9
18.6
19.5
20.4
21.3
22.2
23.2
24.2
25.3
26.4

8 1/2”
RPM BHP
2640 16.4
2662 16.9
2689 17.6
2722 18.3
2760 19.0
2800 19.7
2844 20.6
2890 21.5
2940 22.5
2989 23.4
3038 24.4
3089 25.5
3141 26.5
3194 27.7

1

BHP
13.2
13.8
14.4
15.1
15.8
16.6
17.4
18.2
19.0
19.9
20.9
21.9
22.9
24.1
25.2
26.4

3

1

5

4.5
4.8
5.1
5.4
5.8
6.2
6.6
7.0
7.5
8.0
8.6
9.2
9.8
10.4
11.1
11.9
12.7
13.5
14.3
15.2
16.2
17.2

3

5.2
5.5
5.8
6.1
6.5
6.9
7.4
7.8
8.3
8.8
9.4
10.0
10.7
11.3
12.1
12.8
13.6
14.5
15.4
16.3
17.3
18.3

1918
1940
1969
2006
2047
2091
2141
2190
2240
2292
2345
2400
2456
2512
2571
2631
2692
2754
2819
2883
2947

6.3
6.6
6.9
7.3
7.7
8.1
8.7
9.2
9.7
10.3
10.9
11.6
12.3
13.0
13.8
14.6
15.5
16.4
17.4
18.4
19.4

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP
2724
2748
2777
2811
2850
2891
2935
2984
3032
3081
3131
3182

18.0
18.7
19.4
20.1
20.9
21.7
22.6
23.6
24.6
25.7
26.7
27.8

2787
2808
2833
2864
2899
2939
2981
3026
3075
3123
3172

19.2
19.8
20.5
21.3
22.0
22.9
23.8
24.7
25.8
26.9
28.0

1 1/4”
RPM BHP

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

1018
1048
1088
1136
1186
1239
1295
1352
1413
1475
1540
1605
1670
1737
1804
1871
1939
2008
2077
2146
2216
2286
2356

1120
1151
1192
1240
1290
1342
1397
1453
1512
1574
1638
1702
1767
1833
1899
1966
2033
2101
2170
2238
2308
2377

1215
1249
1291
1340
1389
1441
1495
1551
1609
1670
1732
1797
1861
1927
1992
2059
2126
2193
2261
2330
2398

0.9
1.0
1.2
1.3
1.4
1.6
1.8
2.0
2.2
2.5
2.8
3.1
3.4
3.8
4.2
4.6
5.0
5.5
6.0
6.6
7.2
7.8
8.4

7.4
7.7
8.1
8.5
9.0
9.5
10.1
10.6
11.2
11.9
12.5
13.2
14.0
14.8
15.6
16.5
17.5
18.4
19.5
20.6

1.3
1.4
1.5
1.7
1.9
2.1
2.3
2.5
2.8
3.1
3.4
3.7
4.1
4.5
4.9
5.4
5.9
6.4
7.0
7.6
8.2
8.9

8.6
9.0
9.4
9.9
10.4
10.9
11.6
12.2
12.8
13.5
14.2
15.0
15.8
16.6
17.6
18.5
19.5
20.6
21.7

1.6
1.8
1.9
2.1
2.3
2.5
2.8
3.1
3.4
3.7
4.1
4.5
4.9
5.3
5.8
6.3
6.8
7.4
8.0
8.7
9.3

9.9
10.3
10.8
11.3
11.8
12.4
13.1
13.8
14.5
15.2
16.0
16.8
17.7
18.6
19.6
20.7
21.7
22.8

1282
1308
1344
1387
1435
1485
1537
1591
1646
1704
1764
1826
1890
1954
2019
2084
2150
2217
2284
2352
2420

2303
2324
2350
2383
2421
2463
2507
2557
2605
2655
2705
2758
2811
2865
2921
2976
3033
3092

1.9
2.0
2.2
2.4
2.6
2.8
3.1
3.4
3.7
4.0
4.4
4.8
5.2
5.7
6.2
6.7
7.2
7.8
8.4
9.1
9.8

10.8
11.2
11.7
12.2
12.8
13.4
14.1
14.8
15.5
16.3
17.1
17.9
18.8
19.7
20.7
21.8
22.9
24.0

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

2867
2890
2917
2950
2986
3027
3070
3115
3165

2927
2947
2971
3001
3035
3074
3114
3158

3004
3026
3052
3084
3119
3159

21.0
21.6
22.5
23.2
24.1
25.0
25.9
26.9
28.1

22.2
22.9
23.7
24.5
25.3
26.2
27.2
28.2

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
28

24.1
24.8
25.7
26.6
27.4
28.4

3081
3104
3133
3166

26.1
27.0
27.8
28.7

Performance
Data

Q Fan and
Super Q II
Size 24

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1-5
—

Q Fan Size 24”
Min - Max
Motor HP
Class 2
5 - 15
—

Min - Max
Motor HP
Class 3
15-30
15 - 30

29

Super Q Fan Size 24”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1-5
5 - 10
NA
NA

Fan Size 27”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

27.0 inches
5.20 square feet
4.54 square feet
7.07 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 27

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

686 mm
0.483 m2
0.422 m2
2.155
m/minute

Maximum RPM
1610
2160
2908

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
437
291

Table P-5 — Size 27 Q-Fan
CFM
Std.
Air
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500

Outlet
Vel.
660
770
881
991
1101
1211
1321
1431
1541
1651
1762
1872
1982
2092
2202
2312
2422
2533
2643
2753
2863
2973
3083
3193

/4”
RPM BHP
510
0.2
564
0.2
623
0.3
684
0.4
746
0.5
810
0.6
874
0.7
939
0.9
1005
1.1
1071
1.3
1138
1.5
1205
1.7
1272
2.0
1339
2.4
1406
2.7
1474
3.1
1541
3.5
1609
4.0
1677
4.5
1745
5.0
1813
5.6
1881
6.3
1949
7.0
2017
7.7

/8”
RPM BHP
559 0.3
607 0.3
658 0.4
715 0.5
775 0.6
836 0.7
898 0.8
961 1.0
1026 1.2
1090 1.4
1156 1.6
1221 1.9
1287 2.2
1354 2.5
1420 2.9
1487 3.3
1554 3.7
1622 4.2
1689 4.7
1756 5.3
1824 5.9
1892 6.5
1959 7.2
2027 7.9

/2”
RPM BHP
607
0.3
649
0.4
697
0.5
747
0.6
803
0.7
862
0.8
922
1.0
983
1.1
1046
1.3
1109
1.5
1174
1.8
1238
2.0
1303
2.4
1369
2.7
1435
3.1
1501
3.5
1567
3.9
1634
4.4
1701
4.9
1768
5.5
1835
6.1
1902
6.7
1969
7.4
2037
8.2

RPM
657
690
734
781
832
887
945
1005
1067
1129
1191
1255
1319
1384
1449
1515
1580
1646
1713
1779
1846
1913
1980
2047

CFM
Std.
Air
6000
6500
7000
7500
8000
8500
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
16500
17000
17500

Outlet
Vel.
1321
1431
1541
1651
1762
1872
1982
2092
2202
2312
2422
2533
2643
2753
2863
2973
3083
3193
3303
3414
3524
3634
3744
3854

2 1/4”
RPM BHP
1263
3.0
1298
3.2
1338
3.5
1384
3.8
1430
4.1
1479
4.5
1529
4.9
1581
5.3
1635
5.8
1691
6.3
1748
6.9
1808
7.5
1868
8.1
1928
8.8
1989
9.5
2051 10.2
2113 11.0
2175 11.9
2238 12.8
2301 13.8
2365 14.8
2429 15.9
2493 17.0
2558 18.2

2 1/2”
RPM BHP
1313 3.3
1342 3.6
1380 3.8
1421 4.1
1467 4.5
1514 4.9
1563 5.3
1613 5.7
1665 6.2
1719 6.7
1774 7.3
1832 7.9
1890 8.5
1951 9.3
2011 10.0
2072 10.8
2133 116
2195 12.5
2257 13.4
2320 14.4
2383 15.4
2446 16.5
2510 17.6
2574 18.9

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1435
1463
1498
1538
1584
1629
1677
1726
1777
1828
1882
1938
1995
2053
2114
2174
2234
2295
2357
2419
2481
2544
2607

1549
1576
1611
1650
1694
1739
1786
1835
1885
1936
1988
2042
2098
2155
2213
2274
2333
2394
2455
2516
2578
2640

1657
1684
1718
1757
1799
1845
1891
1939
1989
2039
2091
2143
2198
2254
2312
2370
2430
2490
2550
2611
2672

1837
1858
1886
1921
1959
2001
2047
2092
2139
2188
2238
2289
2341
2393
2447
2503
2560
2618
2677
2738

1931
1953
1982
2017
2056
2097
2143
2189
2236
2284
2333
2384
2436
2487
2541
2596
2653
2710
2768

2021
2045
2075
2111
2150
2191
2238
2283
2330
2378
2427
2477
2529
2580
2633
2688
2744
2801

CFM
Std.
Air
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
16500
17000
17500

Outlet
Vel.
2202
2312
2422
2533
2643
2753
2863
2973
3083
3193
3303
3414
3524
3634
3744
3854

7”
RPM
2196
2223
2255
2292
2331
2374
2420
2466
2513
2561
2609
2659
2711
2763
2814
2868

7 1/2”
RPM BHP
2258 16.7
2280 17.4
2309 18.1
2342 18.9
2380 19.7
2420 20.6
2463 21.6
2509 22.7
2555 23.8
2602 24.9
2650 26.0
2698 27.2
2748 28.5
2799 29.9
2851 31.3
2902 32.9

8”
RPM
2319
2339
2363
2393
2428
2466
2507
2552
2597
2642
2689
2737
2786
2836
2887

1

BHP
15.4
16.2
16.9
17.6
18.5
19.3
20.4
21.4
22.4
23.5
24.6
25.8
27.1
28.4
29.9
31.4

3

1

4.3
4.6
4.9
5.3
5.7
6.1
6.6
7.1
7.6
8.2
8.9
9.5
10.2
11.0
11.8
12.7
13.6
14.6
15.6
16.6
17.8
18.9
20.2

BHP
18.0
18.6
19.4
20.2
21.0
21.9
22.9
24.0
25.1
26.3
27.5
28.7
30.0
31.4
32.8

5/ ”
8

BHP
0.4
0.5
0.6
0.7
0.8
0.9
1.1
1.2
1.4
1.7
1.9
2.2
2.5
2.9
3.2
3.6
4.1
4.6
5.1
5.7
6.3
7.0
7.7
8.4

5.4
5.8
6.1
6.5
7.0
7.5
3.0
8.6
9.2
9.8
10.5
11.3
12.1
12.9
13.8
14.8
15.8
16.6
17.9
19.0
20.3
21.5

8 1/2”
RPM BHP
2398
2419
2445
2476
2513
2551
2592
2638
2683
2729
2776
2824
2873

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP

1 1/4”
RPM BHP

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

731
769
815
863
914
969
1027
1087
1148
1209
1272
1335
1399
1463
1528
1593
1659
1725
1791
1857
1923
1990
2057

918
943
979
1023
1070
1119
1170
1224
1280
1338
1399
1459
1521
1583
1645
1709
1772
1836
1901
1966
2031
2096

1011
1038
1075
1119
1165
1214
1264
1317
1372
1430
1489
1549
1610
1671
1734
1796
1859
1923
1987
2051
2116

1098
1127
1166
1210
1256
1305
1355
1407
1462
1518
1577
1637
1697
1758
1820
1882
1945
2008
2072
2136

3

19.9
20.6
21.5
22.3
23.3
24.2
25.3
26.5
27.7
28.9
30.2
31.5
32.9

0.6
0.7
0.8
0.9
1.0
1.2
1.4
1.6
1.8
2.1
2.4
2.7
3.0
3.4
3.8
4.3
4.8
5.3
5.9
6.5
7.2
7.9
8.7

6.6
7.0
7.4
7.9
8.4
9.0
9.6
10.2
10.9
11.6
12.3
13.2
14.0
14.9
15.9
16.9
18.0
19.2
20.3
21.6
22.9

842
878
923
970
1020
1072
1127
1185
1245
1306
1367
1429
1492
1555
1619
1684
1748
1813
1879
1944
2010
2076

1740
1760
1787
1821
1859
1901
1948
1993
2041
2090
2140
2191
2242
2296
2352
2408
2466
2524
2585
2645
2705

0.9
1.0
1.1
1.3
1.4
1.6
1.9
2.1
2.4
2.7
3.0
3.4
3.8
4.2
4.7
5.2
5.8
6.4
7.0
7.7
8.4
9.2

7.6
7.9
8.4
8.9
9.4
9.9
10.6
11.2
11.9
12.7
13.4
14.3
15.2
16.1
17.1
18.1
19.2
20.4
21.7
22.9
24.3

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP
2475
2498
2526
2558
2596
2635
2677
2723
2768
2814
2861

22.0
22.9
23.7
24.6
25.6
26.7
27.8
29.1
30.4
31.7
33.0

2531
2551
2576
2606
2640
2678
2718
2760
2807
2852
2898

23.4
24.2
25.1
26.0
27.0
28.1
29.2
30.4
31.9
33.2
34.6

1.1
1.2
1.4
1.5
1.7
1.9
2.2
2.4
2.7
3.0
3.4
3.8
4.2
4.6
5.1
5.6
6.2
6.8
7.5
8.2
8.9
9.7

9.0
9.4
9.9
10.4
11.0
11.6
12.3
13.0
13.8
14.6
15.4
16.3
17.3
18.3
19.4
20.5
21.7
23.0
24.3
25.7

1.5
1.6
1.8
2.0
2.2
2.5
2.7
3.0
3.4
3.7
4.1
4.6
5.0
5.5
6.1
6.7
7.3
8.0
8.7
9.4
10.3

10.4
10.9
11.5
12.0
12.7
13.4
14.2
14.9
15.8
16.6
17.5
18.5
19.5
20.7
21.8
23.0
24.3
25.6
27.0

1.9
2.1
2.3
2.5
2.8
3.1
3.4
3.7
4.1
4.5
5.0
5.5
6.0
6.5
7.1
7.8
8.5
9.2
10.0
10.8

12.0
12.6
13.2
13.8
14.5
15.2
16.1
17.0
17.9
18.8
19.8
20.8
21.9
23.1
24.4
25.7
27.0
28.5

1160
1182
1214
1253
1298
1345
1393
1443
1495
1549
1605
1663
1723
1783
1844
1905
1967
2029
2092
2155

2090
2110
2135
2166
2202
2241
2284
2330
2375
2422
2470
2519
2569
2620
2673
2724
2779
2835

2.2
2.4
2.6
2.9
3.1
3.4
3.7
4.1
4.5
4.9
5.4
5.9
6.4
7.0
7.6
8.3
9.0
9.7
10.5
11.3

13.2
13.7
14.3
14.9
15.7
16.4
17.2
18.2
19.1
20.1
21.1
22.1
23.3
24.4
25.7
27.1
28.5
29.9

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

2605
2627
2654
2685
2721
2759
2800
2842
2890

2659
2678
2702
2731
2763
2801
2839
2881

2730
2751
2777
2807
2841
2879

25.6
26.6
27.5
28.5
29.5
30.7
31.9
33.2
34.7

27.1
27.9
29.0
30.0
31.0
32.2
33.4
34.7

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
30

29.4
30.4
31.5
32.6
33.7
34.9

2781
2800
2823
2851
2883

31.0
31.9
33.0
34.1
35.3

Performance
Data

Q Fan and
Super Q II
Size 27

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1 - 7.5
—

Q Fan Size 27”
Min - Max
Motor HP
Class 2
5 -15
5 -15

Min - Max
Motor HP
Class 3
15 - 40
15 - 40

31

Super Q Fan Size 27”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1 - 7.5
5-15
NA
NA

Fan Size 30”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

30.0 inches
6.45 square feet
5.60 square feet
7.85 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 30

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

762 mm
0.599 m2
0.520 m2
2.393
m/minute

Maximum RPM
1448
1940
2618

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
365
243

Table P-6 — Size 30 Q-Fan
CFM
Std.
Air
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
16500

Outlet
Vel.
892
982
1071
1160
1250
1339
1428
1517
1607
1696
1785
1874
1964
2053
2142
2232
2321
2410
2500
2589
2678
2767
2857
2946

/4”
RPM BHP
566
0.4
610
0.5
656
0.6
702
0.7
748
0.8
796
0.9
843
1.1
891
1.2
939
1.4
987
1.7
1036
1.9
1085
2.2
1134
2.4
1183
2.8
1232
3.1
1281
3.5
1330
3.8
1379
4.3
1429
4.7
1478
5.2
1528
5.7
1577
6.3
1627
6.9
1676
7.5

/8”
RPM BHP
597 0.5
639 0.6
682 0.7
726 0.8
771 0.9
817 1.1
863 1.2
910 1.4
957 1.6
1004 1.8
1052 2.1
1100 2.3
1148 2.6
1196 3.0
1245 3.3
1293 3.7
1342 4.1
1391 4.5
1440 5.0
1489 5.5
1538 6.0
1587 6.6
1637 7.2
1686 7.8

/2”
RPM BHP
631
0.6
669
0.7
708
0.8
750
0.9
794
1.1
838
1.2
883
1.4
928
1.6
974
1.8
1021
2.0
1068
2.3
1115
2.5
1162
2.8
1210
3.2
1258
3.5
1306
3.9
1354
4.3
1403
4.7
1451
5.2
1500
5.7
1549
6.3
1598
6.8
1647
7.4
1696
8.1

/8”
RPM BHP
664
0.7
699
0.8
736
0.9
775
1.0
816
1.2
859
1.4
903
1.5
947
1.7
992
1.9
1038
2.2
1084
2.4
1130
2.7
1177
3.0
1224
3.4
1271
3.7
1319
4.1
1367
4.5
1415
5.0
1463
5.5
1511
6.0
1559
6.5
1608
7.1
1656
7.7
1705
8.4

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
696
0.8
761
1.1
729
0.9
787
1.2
764
1.1
819
1.3
801
1.2
852
1.5
839
1.3
888
1.6
880
1.5
925
1.8
922
1.7
963
2.0
966
1.9
1003
2.2
1010
2.1
1044
2.5
1054
2.4
1088
2.7
1100
2.6
1131
3.0
1145
2.9
1176
3.3
1191
3.2
1220
3.7
1238
3.6
1266
4.0
1285
4.0
1311
4.4
1332
4.3
1357
4.8
1379
4.8
1403
5.3
1426
5.2
1450
5.7
1474
5.7
1497
6.2
1522
6.2
1544
6.8
1570
6.8
1591
7.3
1618
7.4
1639
7.9
1666
8.0
1686
8.6
1715
8.7
1734
9.3

1 1/4”
RPM BHP
828
1.4
846
1.5
872
1.6
901
1.8
935
2.0
969
2.2
1005
2.4
1042
2.6
1081
2.9
1121
3.1
1162
3.4
1205
3.7
1249
4.1
1293
4.5
1338
4.9
1383
5.3
1428
5.8
1474
6.2
1520
6.8
1566
7.3
1612
7.9
1659
8.5
1706
9.2
1753
9.9

1 1/2”
RPM BHP

RPM

2”
BHP RPM BHP

908
926
951
980
1013
1047
1082
1118
1156
1195
1235
1277
1320
1364
1408
1452
1497
1542
1588
1634
1680
1726
1773

983
1001
1026
1055
1088
1121
1156
1192
1229
1267
1307
1348
1390
1433
1477
1521
1565
1610
1655
1700
1746
1792

2.3
2.5
2.7
2.9
3.1
3.4
3.7
3.9
4.3
4.6
5.0
5.4
5.8
6.3
6.8
7.3
7.8
8.4
9.0
9.7
10.4
11.1

CFM
Std.
Air
8000
8500
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
16500
17000
17500
18000
18500
19000
19500

Outlet
Vel.
1428
1517
1607
1696
1785
1874
1964
2053
2142
2232
2321
2410
2500
2585
2678
2767
2857
2946
3035
3125
3214
3303
3392
3482

2 1/4”
RPM BHP
1167
3.9
1196
4.2
1229
4.5
1262
4.8
1296
5.2
1332
5.5
1368
5.9
1406
6.4
1444
6.8
1484
7.3
1525
7.8
1567
8.4
1609
8.9
1653
9.6
1697 10.2
1741 10.9
1786 11.6
1830 12.4
1876 13.2
1921 14.0
1967 14.9
2013 15.8
2059 16.7
2105 17.7

2 1/2”
RPM BHP
1207 4.4
1234 4.7
1263 5.0
1296 5.3
1329 5.7
1363 6.0
1399 6.4
1435 6.9
1473 7.3
1510 7.8
1550 8.4
1590 8.9
1632 9.5
1674 10.1
1718 10.8
1762 11.5
1806 12.3
1850 13.0
1894 13.8
1939 14.7
1984 15.6
2030 16.5
2075 17.5
2121 18.5

3”
RPM
1291
1310
1334
1362
1392
1426
1459
1493
1529
1565
1602
1640
1678
1719
1760
1801
1844
1888
1932
1975
2020
2064
2109
2154

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1390
1407
1430
1456
1485
1518
1550
1584
1618
1654
1690
1727
1765
1803
1843
1884
1925
1968
2010
2055
2098
2142
2187

1483
1500
1521
1547
1574
1605
1638
1671
1705
1740
1775
1812
1849
1887
1925
1965
2005
2047
2089
2131
2176
2219

1657
1672
1692
1716
1743
1772
1803
1837
1870
1904
1939
1974
2010
2047
2085
2122
2161
2201
2242
2283

1738
1754
1773
1797
1824
1852
1882
1916
1949
1982
2017
2052
2088
2124
2162
2200
2237
2276
2316

1816
1832
1852
1875
1902
1930
1960
1994
2026
2059
2093
2128
2164
2200
2237
2275
2313
2350

CFM
Std.
Air
13000
13500
14000
14500
15000
15500
16000
16500
17000
17500
18000
18500
19000
19500
20000
20500

Outlet
Vel.
2321
2410
2500
2589
2678
2767
2857
2946
3035
3125
3214
3303
3392
3482
3571
3660

7”
RPM
2002
2025
2052
2080
2109
2141
2175
2208
2242
2276
231
2347
2384
2421
2458
2496

7 1/2”
RPM BHP
2054 21.5
2074 22.2
2098 23.0
2124 23.8
2152 24.7
2182 25.6
2213 26.5
2248 27.7
2280 28.7
2314 29.8
2348 30.9
2383 32.1
2419 33.3
2455 34.6
2492 35.9
2529 37.2

8”
RPM
2106
2124
2145
2168
2195
2223
2253
2284
2319
2351
2385
2419
2454
2489
2525
2562

1

BHP
20.0
20.7
21.5
22.2
23.1
24.0
25.1
26.1
27.1
28.1
29.2
30.4
31.6
32.8
34.1
35.5

3

1

BHP
5.3
5.6
5.9
6.2
6.6
7.1
7.5
7.9
8.4
8.9
9.5
10.0
10.7
11.3
12.0
12.7
13.5
14.3
15.2
16.1
17.0
17.9
18.9
20.0

BHP
23.0
23.8
24.6
25.4
26.3
27.2
28.2
29.2
30.4
31.5
32.7
33.9
35.1
36.4
37.7
39.1

5

6.6
6.9
7.3
7.7
8.1
8.6
9.0
9.6
10.1
10.6
11.2
11.9
12.5
13.3
14.0
14.8
15.7
16.5
17.4
18.4
19.4
20.4
21.5

8 1/2”
RPM BHP
2159 24.7
2174 25.4
2192 26.2
2214 27.0
2238 27.9
2265 28.8
2293 29.8
2323 30.9
2354 32.0
2388 33.2
2421 34.4
2455 35.6
2489 36.9
2523 38.2
2559 39.5
2595 40.9

3

8.0
8.4
8.8
9.2
9.6
10.1
10.7
11.3
11.9
12.5
13.1
13.8
14.6
15.3
16.2
17.0
17.9
18.9
19.8
20.9
22.0
23.1

1572
1588
1609
1633
1660
1690
1723
1755
1789
1823
1858
1894
1931
1968
2006
2044
2084
2125
2166
2208
2250

9.5
9.9
10.4
10.8
11.3
11.9
12.5
13.1
13.8
14.5
15.2
15.9
16.7
17.5
18.4
19.3
20.3
21.3
22.4
23.5
24.6

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP
2225
2241
2260
2282
2306
2333
2362
2391
2423
2457
2490
2523
2557
2592

27.0
27.8
28.7
29.6
30.5
31.5
32.6
33.7
34.8
36.2
37.5
38.7
40.1
41.4

2276
2290
2306
2326
2348
2373
2401
2429
2459
2490
2525
2558
2591

28.8
29.5
30.5
31.3
32.3
33.3
34.3
35.4
36.6
37.8
39.3
40.6
42.0

11.1
11.6
12.1
12.6
13.1
13.7
14.4
15.1
15.8
16.5
17.3
18.1
18.9
19.8
20.8
21.8
22.8
23.9
25.0
26.2

1.8
2.0
2.1
2.3
2.5
2.7
3.0
3.2
3.5
3.8
4.2
4.5
4.9
5.3
5.8
6.3
6.8
7.3
7.9
8.5
9.1
9.8
10.5

12.9
13.4
13.9
14.5
15.0
15.7
16.4
17.2
18.0
18.7
19.6
20.4
21.3
22.3
23.3
24.3
25.5
26.6
27.8

1 3/
4

”

14.7
15.3
15.8
16.4
17.1
17.8
18.5
19.4
20.2
21.1
22.0
22.9
23.8
24.9
25.9
27.0
28.2
29.5

1053
1072
1098
1126
1159
1192
1227
1263
1300
1338
1376
1416
1458
1500
1544
1588
1632
1676
1721
1766
1811

1892
1908
1928
1951
1978
2006
2036
2069
2101
2135
2168
2203
2238
2274
2311
2348
2386

2.9
3.1
3.3
3.5
3.8
4.1
4.4
4.7
5.1
5.4
5.9
6.3
6.8
7.3
7.8
8.4
9.0
9.6
10.3
11.0
11.7

16.6
17.2
17.9
18.5
19.2
20.0
20.7
21.7
22.6
23.5
24.5
25.4
26.5
27.5
28.7
29.8
31.1

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

2339
2354
2371
2391
2414
2440
2467
2496
2526
2557
2592

2401
2416
2434
2455
2479
2505
2533
2561
2592

2448
2462
2478
2497
2519
2543
2569
2597

31.3
32.1
33.1
34.1
35.1
36.1
37.2
38.4
39.6
40.9
42.5

33.9
34.8
35.9
36.9
37.9
39.1
40.2
41.5
42.8

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
32

35.8
36.7
37.6
38.8
39.8
40.9
42.1
43.4

2508
2522
2539
2559
2581
2606

38.6
39.5
40.7
41.7
42.9
44.1

Performance
Data

Q Fan and
Super Q II
Size 30

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1 - 7.5
—

Q Fan Size 30”
Min - Max
Motor HP
Class 2
7.5 - 20
7.5 - 20

Min - Max
Motor HP
Class 3
15 - 50
15 - 50

33

Super Q Fan Size 30”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1 - 7.5
7.5 - 20
NA
NA

Fan Size 33”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

33.0 inches
7.78 square feet
6.78 square feet
8.64 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 33

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

838 mm
0.723 m2
0.630 m2
2.633
m/minute

Maximum RPM
1358
1822
2455

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
490
326

Table P-7 — Size 33 Q-Fan
CFM
Std.
Air
6000
6600
7200
7800
8400
9000
9600
10200
10800
11400
12000
12600
13200
13800
14400
15000
15600
16200
16800
17400
18000
18600
19200
19800

Outlet
Vel.
884
973
1061
1150
1238
1327
1415
1504
1592
1681
1769
1858
1946
2035
2123
2212
2300
2389
2477
2566
2654
2743
2831
2920

/4”
RPM BHP
521
0.4
560
0.5
601
0.6
643
0.7
686
0.8
729
1.0
772
1.2
816
1.3
860
1.6
904
1.8
948
2.0
993
2.3
1038
2.6
1083
3.0
1128
3.3
1173
3.7
1218
4.2
1263
4.6
1308
5.1
1353
5.6
1399
6.2
1444
6.8
1490
7.5
1535
8.1

/8”
RPM BHP
554 0.6
590 0.6
628 0.7
667 0.9
708 1.0
749 1.2
791 1.3
833 1.5
876 1.7
920 2.0
963 2.2
1007 2.5
1051 2.8
1095 3.2
1140 3.6
1184 4.0
1229 4.4
1274 4.9
1318 5.4
1363 5.9
1408 6.5
1453 7.1
1498 7.7
1544 8.4

/2”
RPM BHP
588
0.7
621
0.8
656
0.9
693
1.0
731
1.2
770
1.3
810
1.5
851
1.7
893
1.9
935
2.2
978
2.4
1021
2.7
1064
3.1
1108
3.4
1152
3.8
1196
4.2
1240
4.7
1284
5.1
1329
5.6
1373
6.2
1418
6.8
1463
7.4
1507
8.0
1552
8.7

/8”
RPM BHP
620
0.8
652
0.9
684
1.1
719
1.2
755
1.4
792
1.5
830
1.7
870
1.9
910
2.1
952
2.4
993
2.7
1036
3.0
1078
3.3
1121
3.7
1164
4.0
1208
4.5
1251
4.9
1295
5.4
1339
5.9
1383
6.5
1428
7.1
1472
7.7
1516
8.3
1561
9.1

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
651
1.0
713
1.3
681
1.1
737
1.4
712
1.2
764
1.6
745
1.4
795
1.7
779
1.5
827
1.9
814
1.7
860
2.1
851
1.9
893
2.3
889
2.1
929
2.6
928
2.3
965
2.8
968
2.6
1003
3.1
1009
2.9
1041
3.4
1050
3.2
1080
3.7
1092
3.5
1120
4.0
1134
3.9
1161
4.4
1177
4.3
1202
4.8
1220
4.7
1244
5.2
1263
5.2
1286
5.7
1306
5.7
1328
6.2
1350
6.2
1371
6.8
1393
6.7
1414
7.3
1437
7.3
1457
7.9
1481
8.0
1500
8.6
1526
8.7
1544
9.3
1570
9.4
1588 10.0

CFM
Std.
Air
9000
9600
10200
10800
11400
12000
12600
13200
13800
14400
15000
15600
16200
16800
17400
18000
18600
19200
19800
20400
21000
21600
22200
22800

Outlet
Vel.
1327
1415
1504
1592
1681
1769
1858
1946
2035
2123
2212
2300
2389
2477
2566
2654
2743
2831
2920
3008
3097
3185
3274
3362

2 1/4”
RPM BHP
1069
4.3
1092
4.6
1118
4.9
1147
5.3
1178
5.6
1208
6.0
1240
6.5
1273
6.9
1306
7.4
1340
7.9
1375
8.4
1411
8.9
1448
9.5
1485 10.1
1523 10.7
1562 11.3
1601 12.1
1641 12.8
1681 13.6
1721 14.4
1762 15.3
1804 16.2
1845 17.2
1887 18.2

2 1/2”
RPM BHP
1112 4.9
1131 5.1
1155 5.5
1181 5.8
1210 6.2
1240 6.6
1271 7.0
1303 7.5
1335 8.0
1369 8.5
1403 9.0
1437 9.6
1473 10.2
1509 10.8
1546 11.4
1584 12.1
1622 12.8
1661 13.6
1700 14.4
1740 15.2
1780 16.1
1821 17.1
1862 18.0
1903 19.1

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1212
1228
1249
1275
1302
1332
1362
1392
1424
1457
1490
1523
1557
1593
1629
1665
1703
1740
1778
1817
1856
1896
1936

6.3
6.6
6.9
7.3
7.7
8.2
8.7
9.2
9.8
10.4
11.0
11.6
12.3
13.0
13.7
14.4
15.2
16.1
16.9
17.8
18.8
19.8
20.8

1306
1320
1339
1363
1389
1417
1448
1478
1509
1541
1573
1606
1640
1674
1709
1744
1781
1818
1855
1893
1931
1970

1394
1407
1425
1447
1474
1500
1529
1560
1590
1621
1654
1686
1719
1753
1787
1822
1857
1894
1930
1968
2006

1569
1587
1607
1632
1658
1686
1716
1746
1776
1807
1839
1871
1904
1938
1971
2005
2040
2076

1634
1646
1663
1683
1706
1733
1760
1789
1820
1850
1881
1912
1945
1977
2010
2044
2078
2112

1707
1719
1736
1756
1779
1806
1833
1861
1892
1922
1953
1984
2016
2048
2081
2114
2148

CFM
Std.
Air
16000
16600
17200
17800
18400
19000
19600
20200
20800
21400
22000
22600
23200
23800
24400
25000

Outlet
Vel.
2359
2448
2536
2625
2713
2802
2890
2979
3067
3156
3244
3333
3421
3510
3598
3687

7”
RPM
1890
1912
1938
1964
1992
2020
2052
2082
2112
2143
2176
2208
2241
2274
2307
2341

7 1/2”
RPM BHP
1938 25.9
1957 26.7
1980 27.5
2006 28.6
2032 29.6
2059 30.7
2088 31.8
2119 33.1
2149 34.3
2180 35.6
2211 36.9
2243 38.5
2275 39.9
2307 41.4
2340 42.9
2374 44.4

8”
RPM
1987
2004
2024
2046
2072
2098
2126
2154
2186
2216
2246
2277
2308
2341
2373
2406

BHP
27.9
28.6
29.5
30.4
31.5
32.6
33.7
34.9
36.3
37.6
38.9
40.4
41.8
43.5
45.1
46.7

8 1/2”
RPM BHP
2037 30.1
2050 30.7
2068 31.5
2088 32.4
2111 33.4
2138 34.6
2164 35.7
2191 36.9
2220 38.2
2251 39.6
2281 41.0
2311 42.5
2342 44.0
2373 45.5
2406 47.3
2438 49.0

1

BHP
24.0
24.8
25.8
26.7
27.7
28.8
30.0
31.1
32.3
33.6
35.0
36.4
37.8
39.2
40.6
42.1

3

1

5

7.9
8.2
8.5
9.0
9.5
10.0
10.5
11.1
11.7
12.4
13.1
13.8
14.5
15.3
16.1
16.9
17.8
18.7
19.6
20.5
21.6
22.6

3

9.6
9.9
10.3
10.8
11.3
11.9
12.5
13.1
13.8
14.5
15.4
16.1
16.9
17.8
18.6
19.5
20.5
21.4
22.5
23.5
24.6

1478
1490
1508
1529
1554
1581
1609
1639
1669
1700
1731
1764
1796
1830
1863
1897
1932
1968
2004
2041

11.5
11.8
12.2
12.7
13.3
13.9
14.6
15.3
16.0
16.8
17.6
18.6
19.5
20.4
21.3
22.3
23.3
24.4
25.4
26.6

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP
2099
2113
2131
2152
2175
2202
2228
2255
2284
2315
2345
2375
2406
2437

32.9
33.6
34.5
35.4
36.5
37.8
39.0
40.3
41.6
43.1
44.6
46.1
47.7
49.3

2148
2159
2175
2193
2214
2238
2265
2291
2318
2347
2378
2408
2439

35.2
35.8
36.6
37.5
38.6
39.7
41.1
42.4
43.8
45.2
46.8
48.3
49.9

1 1/4”
RPM BHP

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

793
816
843
873
903
936
969
1003
1038
1075
1112
1150
1189
1229
1269
1310
1351
1393
1435
1477
1520
1563
1606

8.54
868
890
916
946
976
1008
1040
1074
1108
1144
1180
1218
1256
1295
1334
1375
1415
1456
1498
1540
1582
1624

923
938
960
987
1016
1046
1077
1109
1142
1176
1211
1247
1284
1321
1359
1398
1438
1478
1519
1560
1601
1643

1.8
1.9
2.1
2.3
2.5
2.8
3.0
3.3
3.6
3.9
4.2
4.6
4.9
5.4
5.8
6.3
6.8
7.4
8.0
8.6
9.2
9.9
10.7

13.8
14.2
14.7
15.4
16.1
16.8
17.6
18.4
19.3
20.1
21.2
22.1
23.1
24.1
25.2
26.3
27.4
28.6

2.2
2.3
2.5
2.7
2.9
3.2
3.5
3.8
4.1
4.4
4.8
5.1
5.5
6.0
6.4
6.9
7.4
8.0
8.6
9.2
9.9
10.6
11.4

15.5
15.9
16.4
16.9
17.6
18.4
19.2
20.0
20.9
21.8
22.8
23.8
24.9
26.0
27.1
28.2
29.4
30.6

2.8
2.9
3.1
3.4
3.7
3.9
4.3
4.6
5.0
5.3
5.7
6.1
6.6
7.1
7.5
8.1
8.6
9.3
9.9
10.6
11.3
12.1

17.7
18.1
18.6
19.2
20.0
20.8
21.7
22.5
23.5
24.5
25.6
26.6
27.9
29.0
30.2
31.4
32.7

989
1005
1027
1054
1082
1113
1144
1176
1209
1242
1276
1312
1348
1385
1423
1461
1500
1540
1580
1621
1662

1778
1790
1807
1827
1851
1877
1904
1932
1963
1993
2023
2054
2085
2118
2151
2184

3.4
3.6
3.8
4.1
4.4
4.8
5.1
5.5
5.9
6.3
6.8
7.2
7.7
8.2
8.8
9.3
10.0
10.6
11.3
12.0
12.8

20.0
20.4
21.0
21.7
22.5
23.4
24.3
25.2
26.3
27.4
28.5
29.6
30.8
32.2
33.5
34.8

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

2207
2219
2236
2254
2276
2300
2327
2353
2381
2409
2441

2264
2278
2295
2315
2337
2362
2388
2415
2442

2321
2336
2354
2374
2396
2423
2448

38.2
38.9
39.8
40.8
41.9
43.1
44.5
45.9
47.4
48.9
50.6

41.3
42.1
43.0
44.1
45.3
46.7
48.1
49.6
51.1

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
34

44.5
45.4
46.4
47.6
48.8
50.4
51.8

2366
2377
2394
2412
2433

47.0
47.9
48.8
49.9
51.1

Performance
Data

Q Fan and
Super Q II
Size 33

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1 - 10
1.5 - 10

Q Fan Size 33”
Min - Max
Motor HP
Class 2
7.5 - 25
7.5 - 25

Min - Max
Motor HP
Class 3
20 - 50
20 - 60

35

Super Q Fan Size 33”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1 - 10
7.5 - 20
NA
NA

Fan Size 36”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

36.5 inches
9.52 square feet
8.30 square feet
9.56 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 36

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

927 mm
0.884 m2
0.771 m2
2.914
m/minute

Maximum RPM
1228
1647
2217

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
400
266

Table P-8 — Size 36 Q-Fan
CFM
Std.
Air
6000
6800
7600
8400
9200
10000
10800
11600
12400
13200
14000
14800
15600
16400
17200
18000
18800
19600
20400
21200
22000
22800
23600
24400

Outlet
Vel.
722
819
915
1012
1108
1204
1301
1397
1493
1590
1686
1783
1879
1975
2072
2168
2265
2361
2457
2554
2650
2746
2843
2939

/4”
RPM BHP
409
0.4
445
0.5
483
0.5
523
07
564
08
605
1.0
648
1.2
690
1.4
733
1.6
777
1.9
820
2.2
864
2.6
908
2.9
952
3.4
996
3.8
1041
4.3
1085
4.9
1130
5.5
1174
6.1
1219
6.8
1263
7.6
1308
8.4
1353
9.2
1398 10.2

/8”
RPM BHP
446 0.5
4.78 0.6
512 0.7
549 08
586 10
626 1.2
666 1.4
708 1.6
749 1.8
792 2.1
834 2.4
877 2.8
920 3.2
964 3.6
1008 4.1
1051 4.6
1095 5.2
1139 5.8
1183 6.4
1228 7.1
1272 7.9
1316 8.7
1361 9.6
1405 10.5

/2”
RPM BHP
481
0.6
510
0.8
542
0.9
575
1.0
611
1.2
647
1.4
686
1.6
725
1.8
766
2.1
807
2.4
849
2.7
891
3.1
933
3.5
976
3.9
1019
4.4
1062
4.9
1106
5.5
1149
6.1
1193
6.8
1237
7.5
1281
8.3
1325
9.1
1369 10.0
1413 10.9

/8”
RPM BHP
515
0.8
541
0.9
570
1.1
602
1.2
635
1.4
670
1.6
706
1.8
744
2.0
783
2.3
823
2.6
863
2.9
904
3.3
946
3.7
988
4.2
1030
4.7
1073
5.2
1116
5.8
1159
6.4
1202
7.1
1246
7.8
1290
8.6
1333
9.4
1377 10.3
1421 11.3

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
550
1.0
571
1.1
633
1.5
598
1.2
651
1.6
628
1.4
677
1.8
659
1.6
706
2.0
692
1.8
736
2.3
727
2.0
769
2.5
763
2.3
802
2.8
800
2.6
836
3.1
839
2.9
872
3.4
878
3.2
909
3.8
918
3.6
947
4.2
959
4.0
986
4.6
1000
4.5
1026
5.1
1042
5.0
1066
5.6
1084
5.5
1107
6.2
1127
6.1
1148
6.8
1169
6.7
1190
7.4
1212
7.4
1232
8.1
1255
8.2
1274
8.9
1298
9.0
1316
9.7
1342
9.8
1359 10.6
1385 10.7
1402 11.5
1429 11.7
1445 12.5

CFM
Std.
Air
12000
12800
13600
14400
15200
16000
16800
17600
18400
19200
20000
20800
21600
22400
23200
24000
24800
25600
26400
27200
28000
28800
29600
30400

Outlet
Vel.
1445
1542
1638
1734
1831
1927
2024
2120
2216
2313
2409
2506
2602
2698
2795
2891
2987
3084
3180
3277
3373
3469
3566
3662

2 1/4”
RPM BHP
996
5.8
1022
6.2
1052
6.7
1082
7.2
1113
7.8
1145
8.4
1178
9.0
1211
9.6
1245 10.3
1281 11.0
1317 11.8
1354 12.6
1392 13.4
1430 14.3
1469 15.3
1508 16.3
1548 17.4
1589 18.6
1629 19.8
1670 21.1
1712 22.5
1753 23.9
1795 25.4
1837 27.0

2 1/2”
RPM BHP
1029 6.4
1054 6.9
1081 7.3
1111 7.9
1141 8.4
1172 9.1
1204 9.7
1237 10.4
1270 11.1
1304 11.9
1340 12.6
1376 13.5
1412 14.4
1449 15.3
1488 16.2
1526 17.3
1565 18.4
1605 19.6
1645 20.8
1686 22.1
1726 23.5
1767 25.0
1809 26.5
1850 28.1

3”
RPM
1100
1118
1142
1167
1195
1225
1256
1287
1319
1351
1385
1419
1454
1489
1526
1563
1600
1638
1677
1716
1756
1796
1836
1877

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1185
1202
1223
1249
1276
1306
1335
1366
1398
1430
1462
1496
1529
1564
1600
1636
1673
1710
1748
1787
1826
1865
1905

1266
1282
1302
1327
1354
1382
1412
1442
1473
1505
1537
1570
1604
1637
1672
1708
1744
1781
1818
1856
1894
1933

1415
1431
1451
1475
1501
1528
1558
1587
1618
1648
1680
1713
1745
1779
1812
1847
1882
1918
1954
1991

1485
1501
1521
1544
1571
1598
1628
1657
1687
1717
1749
1781
1814
1847
1880
1914
1949
1984
2020

1553
1569
1589
1612
1639
1666
1694
1725
1754
1785
1816
1848
1880
1913
1947
198O
2014
2049

CFM
Std.
Air
19000
19800
20600
21400
22200
23000
23800
24600
25400
26200
27000
27800
28600
29400
30200
31000

Outlet
Vel.
2289
2385
2481
2578
2674
2771
2867
2963
3060
3156
3253
3349
3445
3542
3638
3734

7”
RPM
16.95
1714
1737
1764
1790
1818
1848
1878
1908
1939
1970
2002
2035
2067
2101
2134

7 1/2”
RPM BHP
1740 31.1
1757 32.0
1777 33.0
1801 34.2
1827 35.7
1854 37.1
1881 38.6
1912 40.2
1941 41.9
1971 43.6
2002 45.3
2034 47.4
2065 49.3
2098 51.3
2130 53.3
2164 55.4

8”
RPM
1787
1800
1818
1839
1863
1889
1916
1944
1974
2004
2034
2064
2096
2128
2160
2192

1

BHP
28.7
29.6
30.8
32.1
33.4
34.8
36.3
37.9
39.5
41.1
43.1
44.9
46.7
48.6
50.6
52.6

3

1

BHP
7.9
8.2
8.7
9.3
9.9
10.5
11.2
12.0
12.8
13.6
14.4
15.3
16.2
17.2
18.3
19.3
20.4
21.6
22.9
24.2
25.7
27.1
28.7
30.3

BHP
33.6
34.4
35.4
36.6
37.9
39.4
40.9
42.5
44.3
46.0
47.8
49.7
51.9
54.0
56.1
58.2

5

9.8
10.2
10.8
11.4
12.1
12.8
13.6
14.4
15.3
16.3
17.2
18.2
19.2
20.3
21.4
22.6
23.8
25.1
26.5
27.9
29.4
31.0
32.7

8 1/2”
RPM BHP
1845
1860
1878
1900
1925
1950
1977
2005
2036
2065
2095
2126
2157
2189

37.0
37.9
39.0
40.3
41.8
43.4
45.0
46.7
48.5
50.4
52.3
54.3
56.4
58.8

3

12.0
12.4
13.0
13.7
14.4
15.2
16.1
17.0
18.0
19.1
20.2
21.2
22.4
23.6
24.8
26.1
27.4
28.8
30.3
31.8
33.4
35.1

1342
1358
1378
1403
1428
14S6
1486
1516
1546
1578
1610
1642
1675
1709
1743
1778
1814
1850
1887
1924
1961

14.2
14.8
15.4
16.2
17.0
17.9
18.9
19.9
20.9
22.1
23.3
24.5
25.7
27.0
28.4
29.8
31.2
32.7
34.3
35.9
37.6

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP
1891
1902
1918
1937
1959
1985
2011
2037
2065
2096
2126
2156
2186

39.7
40.6
41.6
42.8
44.2
45.8
47.5
49.2
51.0
53.0
55.0
57.0
59.1

1946
1958
1976
1996
2018
2044
2070
2097
2125
2156
2185
2215

43.3
44.3
45.4
46.8
48.2
50.0
51.8
53.6
55.5
57.6
59.7
61.9

1 1/4”
RPM BHP

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

708
725
750
779
809
840
873
906
941
977
1014
1052
1090
1130
1170
1211
1251
1293
1335
1377
1419
1461

776
795
819
847
877
908
940
973
1007
1042
1079
1116
1154
1192
1232
1272
1312
1353
1394
1436
1478

841
860
885
912
943
973
1005
1038
1071
1106
1142
1178
1215
1254
1293
1332
1372
1412
1453
1494

2.1
2.2
2.5
2.7
3.0
3.3
3.7
4.0
4.4
4.8
5.3
5.7
6.3
6.8
7.5
8.1
8.9
9.6
10.5
11.4
12.3
13.3

16.7
17.3
18.0
18.8
19.7
20.7
21.8
22.9
24.0
25.2
26.6
27.9
29.3
30.7
32.1
33.6
35.2
36.8
38.5
40.3

2.8
3.0
3.2
3.5
3.8
4.2
4.6
5.0
5.5
5.9
6.4
7.0
7.6
8.2
8.9
9.6
10.4
11.3
12.2
13.1
14.2

19.3
19.9
20.7
21.6
22.6
23.7
24.9
26.1
27.3
28.6
30.1
31.5
33.0
34.5
36.1
37.7
39.4
41.1
42.9

3.5
3.7
4.1
4.4
4.8
5.2
5.7
6.1
6.6
7.2
7.7
8.4
9.0
9.7
10.4
11.2
12.1
13.0
14.0
15.0

22.1
22.8
23.6
24.6
25.7
26.9
28.1
29.4
30.8
32.2
33.8
35.3
36.9
38.5
40.2
42.0
43.8
45.6

902
922
948
975
1006
1036
1068
1100
1134
1168
1203
1239
1276
1314
1352
1391
1431
1471
1511

1606
1618
1635
1655
1679
1705
1732
1760
1791
1821
1851
1882
1914
1946
1979
2012
2045
2079

4.3
4.6
5.0
5.4
5.8
6.3
6.8
7.3
7.9
8.5
9.1
9.8
10.5
11.3
12.1
13.0
13.9
14.9
15.9

24.4
25.0
25.8
26.7
27.7
29.0
30.2
31.5
33.0
34.4
35.9
37.5
39.3
41.0
42.8
44.5
46.4
48.3

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

2000
2014
2032
2053
2076
2102
2128
2155
2184
2215

2042
2054
2070
2088
2109
2133
2160
2186
2213

2094
2107
2124
2143
2165
2191
2216

47.1
48.2
49.4
50.9
52.5
54.4
56.2
58.1
60.2
62.4

50.1
51.1
52.2
53.6
55.2
56.9
58.9
60.9
62.9

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
36

54.0
55.2
56.5
58.0
59.6
61.7
63.6

2145
2160
2178
2198

58.2
59.4
60.8
62.5

Performance
Data

Q Fan and
Super Q II
Size 36

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1.5 - 15
1.5 - 15

Q Fan Size 36”
Min - Max
Motor HP
Class 2
10 - 30
10 - 30

Min - Max
Motor HP
Class 3
25 - 50
25 - 75

37

Super Q Fan Size 36”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1.5 - 15
10 - 30
NA
NA

Fan Size 40”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

40.3 inches
11.56 square feet
10.09 square feet
10.54 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 40

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

1022 mm
1.074 m2
0.937 m2
3.213
m/minute

Maximum RPM
1110
1492
2050

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
301
200

Table P-9 — Size 40 Q Fan
CFM
Std.
Air
8000
8800
9600
10400
11200
12000
12800
13600
14400
15200
16000
16800
17600
18400
19200
20000
20800
21600
22400
23200
24000
24800
25600
26400

Outlet
Vel.
792
872
951
1030
1110
1189
1268
1347
1427
1506
1585
1665
1744
1823
1902
1982
2061
2140
2220
2299
2378
2457
2537
2616

/4”
RPM BHP
395
0.5
422
0.6
451
0.7
481
0.8
512
1.0
543
1.1
574
1.3
606
1.5
638
1.8
670
2.0
702
2.3
735
2.6
767
2.9
800
3.3
833
3.7
866
4.1
899
4.6
932
5.1
965
5.6
998
6.2
1031
6.8
1064
7.4
1098
8.1
1131
8.9

/8”
RPM BHP
426 0.7
450 0.8
477 0.9
504 1.1
532 1.2
562 1.4
592 1.6
622 1.8
653 2.0
684 2.3
716 2.6
748 2.9
780 3.2
812 3.6
844 4.0
876 4.4
909 4.9
942 5.4
974 6.0
1007 6.5
1040 7.2
1073 7.8
1106 8.5
1139 9.3

/2”
RPM BHP
455
0.9
478
1.0
502
1.1
528
1.3
554
1.4
582
1.6
610
1.8
639
2.0
669
2.3
699
2.5
730
2.8
761
3.2
792
3.5
824
3.9
855
4.3
887
4.8
919
5.3
952
5.8
984
6.3
1016
6.9
1049
7.5
1081
8.2
1114
8.9
1147
9.7

/8”
RPM BHP
483
1.1
505
1.2
528
1.3
552
1.5
576
1.7
602
1.9
629
2.1
657
2.3
685
2.6
714
2.8
744
3.1
774
3.5
805
3.8
836
4.2
867
4.7
898
5.1
930
5.6
962
6.1
994
6.7
1026
7.3
1058
7.9
1090
8.6
1123
9.3
1155 10.1

CFM
Std.
Air
15000
15800
16600
17400
18200
19000
19800
20600
21400
22200
23000
23800
24600
25400
26200
27000
27800
28600
29400
30200
31000
31800
32600
33400

Outlet
Vel.
1486
1565
1645
1724
1803
1883
1962
2041
2120
2200
2279
2358
2438
2517
2596
2675
2755
2834
2913
2993
3072
3151
3230
3310

2 1/4”
RPM BHP
913
7.2
933
7.7
956
8.2
978
8.7
1001
9.2
1024
9.8
1049 10.4
1073 11.0
1098 11.7
1124 12.4
1150 13.1
1177 13.8
1204 14.6
1232 15.4
1260 16.2
1288 17.1
1317 18.1
1346 19.1
1376 20.1
1406 21.3
1436 22.4
1466 23.6
1496 24.9
1527 26.2

2 1/2”
RPM BHP
942 8.0
962 8.5
982 9.0
1005 9.5
1027 10.1
1049 10.6
1073 11.3
1097 12.0
1121 12.6
1146 13.3
1171 14.1
1198 14.9
1224 15.7
1251 16.5
1279 17.4
1306 18.3
1334 19.2
1363 20.2
1392 21.3
1421 22.4
1451 23.6
1480 24.8
1511 26.1
1541 27.5

3”
RPM
1004
1019
1037
1056
1076
1099
1121
1143
1167
1191
1215
1240
1265
1290
1316
1343
1370
1397
1425
1453
1481
1510
1539
1568

3 1/2”
RPM BHP
1069 11.7
1078 12.0
1091 12.5
1107 13.0
1126 13.6
1146 14.3
1166 15.0
1189 15.7
1211 16.5
1234 17.3
1257 18.3
1281 19.2
1305 20.1
1329 21.0
1354 22.0
1379 23.1
1405 24.1
1431 25.2
1458 26.4
1485 27.6
1513 28.8
1541 30.1
1568 31.3
1597 32.7

CFM
Std.
Air
23000
23800
24600
25400
26200
27000
27800
28600
29400
30200
31000
31800
32600
33400
34200
35000

Outlet
Vel.
2279
2358
2438
2517
2596
2675
2755
2834
2913
2993
3072
3151
3230
3310
3389
3468

7”
RPM
1535
1549
1566
1585
1604
1623
1644
1667
1689
1711
1733
1756
1780
1804
1828
1852

7 1/2”
RPM BHP
1576 37.7
1589 38.5
1603 39.5
1619 40.7
1638 42.0
1657 43.4
1677 44.8
1697 46.2
1718 47.8
1742 49.5
1764 51.1
1786 52.8
1809 54.6
1832 56.4
1856 58.6
1880 60.5

8”
RPM
1619
1629
1641
1655
1672
1690
1709
1729
1749
1770
1793
1815
1838
1860
1883
1907

1

BHP
34.8
35.7
36.8
38.1
39.3
40.6
42.0
43.5
45.0
46.6
48.2
49.9
51.8
53.6
55.5
57.3

3

1

BHP
9.7
10.1
10.7
11.2
11.8
12.4
13.1
13.8
14.6
15.4
16.2
17.0
17.8
18.8
19.7
20.6
21.7
22.7
23.8
24.9
26.1
27.4
28.7
30.0

BHP
40.7
41.5
42.5
43.5
44.7
46.2
47.6
49.1
50.7
52.3
54.1
55.8
57.6
59.5
61.5
63.7

5

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
511
1.3
571
1.8
530
1.4
582
1.9
552
1.6
599
2.1
575
1.7
619
2.2
598
1.9
641
2.5
623
2.2
663
2.7
648
2.4
687
3.0
675
2.6
711
3.2
702
2.9
736
3.5
730
3.1
762
3.8
759
3.5
789
4.1
788
3.8
817
4.5
818
4.2
845
4.9
848
4.6
873
5.3
878
5.0
902
5.7
909
5.5
932
6.2
940
6.0
962
6.7
972
6.5
993
7.3
1003
7.1
1023
7.9
1035
7.7
1054
8.5
1067
8.3
1085
9.2
1099
9.0
1117
9.8
1131
9.8
1148 10.6
1163 10.5
1180 11.4
3

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

647
662
681
701
724
747
771
795
820
846
872
900
927
956
985
1014
1044
1074
1104
1135
1165
1196

707
721
739
759
781
804
827
851
876
901
926
953
980
1008
1036
1065
1094
1123
1153
1183
1214

763
777
795
814
836
858
881
905
929
954
979
1005
1031
1059
1086
1114
1143
1172
1201
1231

2.6
2.8
3.0
3.2
3.5
3.8
4.2
4.5
4.9
5.2
5.6
6.1
6.5
7.0
7.5
8.1
8.7
9.4
10.0
10.8
11.5
12.4

3.4
3.6
3.9
4.1
4.5
4.8
5.2
5.6
6.0
6.4
6.9
7.4
7.9
8.4
9.0
9.6
10.3
11.0
11.7
12.5
13.3

4.3
4.5
4.8
5.1
5.5
5.9
6.3
6.8
7.2
7.7
8.2
8.8
9.3
9.9
10.6
11.2
11.9
12.7
13.5
14.3

816
830
848
867
888
910
933
957
980
1005
1030
1055
1081
1108
1136
1163
1191
1220
1249

5.2
5.5
5.8
6.2
6.6
7.0
7.5
8.0
8.5
9.1
9.7
10.3
10.9
11.5
12.2
13.0
13.7
14.5
15.4

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

1149
1161
1175
1192
1212
1232
1253
1276
1298
1321
1344
1368
1392
1416
1441
1466
1492
1518
1544
1571
1599
1626

1280
1290
1304
1319
1338
1357
1377
1397
1420
1442
1465
1488
1512
1535
1560
1584
1609
1634
1659
1685

1342
1351
1364
1379
1396
1416
1436
1456
1479
1501
1523
1546
1569
1593
1616
1641
1665
1690
1715

1401
1410
1423
1438
1454
1474
1493
1513
1534
1557
1579
1602
1625
1649
1672
1696
1720
1745

14.6
15.0
15.6
16.2
17.0
17.7
18.5
19.4
20.3
21.3
22.3
23.4
24.4
25.5
26.6
27.8
29.0
30.2
31.5
32.8
34.2
35.6

1216
1227
1241
1257
1276
1295
1316
1338
1360
1383
1405
1429
1453
1477
1501
1526
1551
1576
1602
1629
1656

17.3
17.7
18.3
19.0
19.8
20.7
21.5
22.5
23.5
24.5
25.6
26.8
28.0
29.2
30.4
31.6
32.9
34.3
35.6
37.1
38.6

8 1/2”
RPM BHP

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP

1670
1680
1692
1707
1723
1740
1760
1780
1800
1821
1844
1866
1889
1911
1934

1720
1730
1743
1757
1773
1791
1811
1830
1851
1871
1895
1916
1939
1961

44.7
45.6
46.6
47.7
49.0
50.4
52.1
53.6
55.3
57.0
58.9
60.7
62.6
64.6
66.6

1 1/4”
RPM BHP

48.8
49.8
50.8
52.1
53.4
54.9
56.7
58.3
60.0
61.8
63.9
65.8
67.8
69.9

1768
1779
1792
1806
1823
1840
1860
1880
1900
1921
1944
1966
1988

53.1
54.1
55.3
56.6
58.0
59.6
61.4
63.2
65.0
66.9
69.0
71.1
73.2

20.1
20.7
21.3
22.0
22.9
23.8
24.7
25.7
26.9
28.0
29.1
30.3
31.7
33.0
34.3
35.7
37.0
38.5
40.0
41.5

23.2
23.7
24.4
25.2
26.0
27.1
28.1
29.2
30.4
31.6
32.8
34.1
35.4
37.0
38.4
39.9
41.4
42.9
44.5

26.4
27.0
27.7
28.5
29.4
30.6
31.7
32.8
34.0
35.4
36.7
38.1
39.5
41.2
42.7
44.3
45.9
47.5

1458
1467
1480
1494
1511
1530
1549
1569
1590
1613
1635
1657
1680
1703
1727
1750
1774

29.7
30.4
31.1
32.0
33.0
34.2
35.4
36.6
37.9
39.4
40.8
42.2
43.8
45.4
47.2
48.9
50.6

10”
RPM BHP

10 1/2”
RPM BHP

11”
11 1/2”
RPM BHP RPM BHP

1807
1816
1827
1840
1855
1871
1890
1909
1928
1949
1969
1993

1854
1862
1874
1887
1902
1919
1938
1957
1976

1899
1908
1921
1934
1949
1966
1985

56.6
57.5
58.6
59.8
61.2
62.7
64.6
66.4
68.2
70.1
72.1
74.4

61.1
62.1
63.3
64.6
66.1
67.7
69.7
71.5
73.4

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
38

65.7
66.8
68.1
69.5
71.0
72.8
74.9

1944
1954
1966
1980

70.5
71.7
73.0
74.5

Performance
Data

Q Fan and
Super Q II
Size 40

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
1.5 - 15
1.5 - 15

Q Fan Size 40”
Min - Max
Motor HP
Class 2
10 - 40
10 - 40

Min - Max
Motor HP
Class 3
30 - 50
30 - 75

39

Super Q Fan Size 40”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
1.5 - 15
10 - 40
NA
NA

Fan Size 44”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

44.5 inches
14.14 square feet
12.33 square feet
11.65 x RPM
ft./minute

Performance
Data

Q Fan and
Super Q II
Size 44

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II
III

1130 mm
1.314 m2
1.145 m2
3.551
m/minute

Maximum RPM
1070
1352
1922

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
289
192

Table P-10 — Size 44 Q-Fan
CFM
Std.
Air
9000
10000
11000
12000
13000
14000
15000
16000
17000
18000
19000
20000
21000
22000
23000
24000
25000
26000
27000
28000
29000
30000
31000
32000

Outlet
Vel.
729
811
892
973
1054
1135
1216
1297
1378
1459
1540
1622
1703
1784
1865
1946
2027
2108
2189
2270
2351
2433
2514
2595

/4”
RPM BHP
335
0.5
360
0.7
386
0.8
413
0.9
440
1.1
468
1.2
496
1.4
525
1.7
554
1.9
583
2.2
612
2.5
641
2.9
671
3.2
701
3.6
730
4.1
760
4.6
790
5.1
820
5.7
850
6.3
880
6.9
910
7.6
941
8.4
971
9.2
1001 10.0

/8”
RPM BHP
364 0.7
385 0.9
409 1.0
434 1.2
460 1.3
487 1.5
514 1.7
541 2.0
569 2.2
597 2.5
626 2.9
654 3.2
683 3.6
712 4.0
742 4.5
771 5.0
800 5.5
830 6.1
860 6.7
889 7.4
919 8.1
949 8.9
979 9.7
1009 10.6

/2”
RPM BHP
392
1.0
412
1.1
433
1.2
456
1.4
480
1.6
505
1.8
531
2.0
557
2.3
584
2.6
612
2.9
639
3.2
667
3.6
696
4.0
724
4.4
753
4.9
782
5.4
811
6.0
840
6.6
869
7.2
899
7.9
928
8.6
958
9.4
987 10.2
1017 11.1

/8”
RPM BHP
420
1.2
437
1.3
457
1.5
478
1.7
500
1.9
523
2.1
548
2.4
574
2.6
600
2.9
626
3.2
653
3.6
681
4.0
708
44
736
4.8
764
5.3
793
5.9
821
6.4
850
7.0
879
7.7
908
8.4
937
9.1
966
9.9
996 10.7
1025 11.6

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
451
1.5
463
1.6
517
2.2
480
1.8
526
2.4
499
2.0
542
2.6
520
2.2
559
2.8
542
2.4
580
3.0
565
2.7
600
3.3
590
3.0
622
3.7
615
3.3
645
4.0
641
3.6
669
4.4
667
4.0
694
4.8
694
4.4
719
5.2
721
4.8
745
5.7
748
5.3
772
6.2
776
5.8
798
6.7
804
6.3
825
7.3
832
6.9
853
7.9
860
7.5
880
8.5
889
8.2
908
9.2
917
8.9
936
9.9
946
9.6
964 10.7
975 10.4
992 11.5
1004 11.3
1021 12.4
1033 12.2
1050 13.4

CFM
Std.
Air
16000
17000
18000
19000
20000
21000
22000
23000
24000
25000
26000
27000
28000
29000
30000
31000
32000
33000
34000
35000
36000
37000
38000
39000

Outlet
Vel.
1297
1378
1459
1540
1622
1703
1784
1865
1946
2027
2108
2189
2270
2351
2433
2514
2595
2676
2757
2838
2919
3000
3081
3163

2 1/4”
RPM BHP
784
7.8
796
8.2
813
8.7
830
9.2
849
9.7
869 10.3
890 10.9
911 11.6
933 12.3
956 13.1
979 13.9
1004 14.8
1029 15.7
1054 16.6
1079 17.6
1105 18.6
1131 19.7
1157 20.8
1184 22.0
1211 23.2
1238 24.5
1265 25.8
1293 27.2
1320 28.7

2 1/2”
RPM BHP
818 8.9
828 9.2
841 9.6
857 10.2
874 10.7
893 11.3
914 12.0
934 12.6
955 13.4
977 14.2
999 15.0
1023 15.9
1047 16.8
1072 17.9
1096 18.9
1122 19.9
1147 21.0
1173 22.2
1199 23.4
1226 24.6
1252 25.9
1279 27.3
1306 28.8
1334 30.3

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

5”
RPM BHP

5 1/2”
RPM BHP

6”
6 1/2”
RPM BHP RPM BHP

901
911
925
942
960
978
999
1019
1040
1061
1084
1107
1130
1154
1180
1205
1230
1255
1281
1307
1334
1360

969
978
990
1005
1023
1041
1060
1080
1101
1122
1143
1165
1188
1211
1235
1260
1285
1310
1335
1361
1387

1033
1043
1053
1067
1083
1101
1119
1139
1159
1180
1201
1222
1244
1267
1290
1314
1338
1363
1388
1413

1161
1170
1182
1197
1214
1231
1250
1270
1290
1310
1331
1352
1373
1396
1419
1442
1466

1216
1225
1237
1251
1268
1285
1303
1322
1342
1362
1383
1404
1425
1447
1469
1492

1270
1279
1290
1304
1320
1337
1355
1373
1394
1414
1434
1455
1476
1497
1519

CFM
Std.
Air
28000
29000
30000
31000
32000
33000
34000
35000
36000
37000
38000
39000
40000
41000
42000
43000

Outlet
Vel.
2270
2351
2433
2514
2595
2676
2757
2838
2919
3000
3081
3163
3244
3325
3406
3487

7”
RPM
1381
1392
1405
1420
1437
1455
1473
1492
1512
1532
1553
1574
1595
1616
1638
1661

7 1/2”
RPM BHP
1420 46.7
1430 47.6
1440 48.5
1453 49.7
1468 51.1
1486 52.9
1503 54.6
1521 56.3
1540 58.1
1560 60.0
1580 61.9
1601 63.9
1621 66.0
1642 68.2
1664 70.5
1685 73.1

8”
RPM
1458
1468
1476
1488
1501
1516
1533
1550
1568
1587
1607
1627
1647
1668
1689

1

BHP
42.9
43.7
44.9
46.2
47.9
49.5
51.1
52.7
54.5
56.3
58.2
60.2
62.3
64.7
66.9
69.3

3

1

11.9
12.3
12.8
13.5
14.1
14.9
15.6
16.4
17.3
18.3
19.3
20.3
21.4
22.5
23.8
25.0
26.3
27.6
29.0
30.4
31.9
33.4

BHP
50.6
51.6
52.3
53.4
54.7
56.2
58.2
59.9
61.7
63.6
65.6
67.7
69.8
72.0
74.3

5

14.8
15.2
15.7
16.4
17.2
18.0
18.9
19.8
20.7
21.7
22.9
24.0
25.2
26.4
27.7
29.2
30.6
32.0
33.5
35.1
36.7

8 1/2”
RPM BHP
1505
1514
1522
1534
1547
1562
1580
1597
1615
1633
1652
1673

55.6
56.6
57.4
58.6
59.9
61.5
63.6
65.5
67.4
69.4
71.4
73.7

3

18.0
18.5
18.9
19.6
20.5
21.4
22.3
23.3
24.4
25.5
26.6
28.0
29.2
30.6
32.0
33.5
35.0
36.7
38.3
40.0

1094
1103
1113
1126
1141
1158
1176
1195
1215
1235
1256
1277
1298
1321
1343
1367
1390
1415
1440

21.3
21.9
22.4
23.1
23.9
25.0
26.0
27.1
28.3
29.4
30.7
32.0
33.5
35.0
36.5
38.1
39.7
41.4
43.3

Total Static Pressure
9”
9 1/2”
RPM BHP
RPM BHP
1550
1559
1568
1579
1593
1608
1625
1642
1660

60.7
61.8
62.6
63.9
65.4
67.1
69.3
71.3
73.3

1594
1603
1612
1624
1637
1652

66.0
67.2
68.1
69.4
71.0
72.8

1 1/4”
RPM BHP

1 1/2”
RPM BHP

1 3/4”
2”
RPM BHP RPM BHP

585
598
616
635
655
676
698
721
745
770
795
821
847
873
900
927
955
982
1010
1038
1066

639
652
669
687
707
727
748
771
794
818
843
869
894
920
947
973
1000
1027
1055
1082

691
702
719
736
756
776
797
819
842
865
890
915
940
966
992
1018
1045
1072
1099

3.3
3.5
3.7
4.0
4.4
4.7
5.2
5.6
6.1
6.6
7.1
7.7
8.2
8.9
9.5
10.3
11.0
11.8
12.7
13.6
14.6

25.5
26.0
26.8
27.7
28.9
30.0
31.1
32.4
33.7
35.0
36.4
37.9
39.6
41.2
42.9
44.7
46.5

10”
RPM BHP

1637
1646
1655

4.2
4.5
4.8
5.2
5.5
6.0
6.4
6.9
7.4
8.0
8.6
9.3
9.9
10.6
11.4
12.2
13.0
13.9
14.8
15.8

29.4
29.9
30.7
31.7
32.9
34.1
35.4
36.7
38.1
39.5
41.1
42.6
44.3
46.2
48.0
49.9

10 1/2”
RPM BHP

71.5
72.7
73.7

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.
40

5.4
5.6
6.0
6.4
6.8
7.3
7.8
8.4
9.0
9.6
10.3
11.0
11.7
12.5
13.3
14.2
15.1
16.0
17.1

33.4
34.0
34.8
35.8
37.2
38.5
39.9
41.3
42.8
44.3
45.9
47.6
49.4
51.4
53.4

729
738
750
767
784
804
824
844
866
888
911
935
960
985
1010
1036
1062
1088
1115

1322
1331
1342
1355
1370
1388
1405
1424
1443
1464
1484
1504
1525
1547

6.3
6.5
6.8
7.3
7.7
8.2
8.7
9.3
9.9
10.6
11.3
12.0
12.8
13.7
14.5
15.4
16.3
17.3
18.4

37.6
38.4
39.2
40.3
41.5
43.1
44.5
46.0
47.6
49.3
51.0
52.8
54.7
56.7

11”
11 1/2”
RPM BHP RPM BHP

Performance
Data

Q Fan and
Super Q II
Size 44

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
3 - 20
3 - 20

Q Fan Size 44”
Min - Max
Motor HP
Class 2
15 - 40
15 - 40

Min - Max
Motor HP
Class 3
40 - 50
40 - 75

41

Super Q Fan Size 44”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
3 - 20
15 - 40
NA
NA

Fan Size 49”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

49.0 inches
14.96 square feet
14.96 square feet
12.83 x RPM
ft./minute

Performance
Data

Q Fan
Size 49

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II

1245 mm
1.390 m2
1.390 m2
3.911
m/minute

Maximum RPM
949
1274

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
301
201

Table P-11 — Size 49 Q-Fan
CFM OutStd.
let
Air
Vel.
13000 868
•14000 935
15000 1002
•160001069
17000 1136
18000 1203
19000 1270
20000 1336
21000 1403
22000 1470
23000 1537
•240001604
25000 1671
26000 1737
27000 1804
28000 1871
29000 1938
30000 2005
31000 2072
32000 2139
33000 2205
34000 2272
35000 2339
36000 2406

/4”
RPM BHP
353
1.0
373
1.1
394
1.3
415
1.4
437
1.6
458
1.9
480
2.1
503
2.4
525
2.7
548
3.0
570
3.4
593
3.7
616
4.2
639
4.6
662
5.1
685
5.6
708
6.1
731
6.7
754
7.3
777
8.0
801
8.7
824
9.4
847 10.2
871 11.0

/8”
RPM BHP
376 1.2
395 1.4
414 1.6
434 1.8
454 2.0
475 2.2
496 2.5
517 2.8
539 3.1
560 3.4
582 3.8
605 4.2
627 4.6
649 5.1
672 5.6
695 6.1
717 6.6
740 7.2
763 7.9
786 8.6
809 9.3
832 10.0
855 10.8
878 11.7

/2”
RPM BHP
400
1.6
417
1.7
435
1.9
453
2.1
472
2.4
492
2.6
511
2.9
532
3.2
552
3.5
574
3.9
595
4.2
616
4.6
638
5.1
660
5.6
682
6.1
704
6.6
727
7.2
749
7.8
772
8.4
794
9.1
817
9.9
840 10.6
863 11.4
886 12.3

/8”
RPM BHP
425
1.9
439
2.1
455
2.3
472
2.5
490
2.7
509
3.0
528
3.3
547
3.6
567
3.9
587
4.3
608
4.7
629
5.1
650
5.6
671
6.1
693
6.6
715
7.1
737
7.7
759
8.3
781
9.0
803
9.7
826 10.5
848 11.2
871 12.1
893 13.0

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
451
2.3
463
2.4
476
2.6
521
3.5
492
2.9
532
3.7
508
3.1
545
4.0
525
3.4
560
4.3
544
3.7
576
4.6
563
4.1
593
4.9
582
4.4
611
5.3
601
4.8
629
5.8
621
5.2
648
6.2
641
5.6
667
6.7
662
6.1
686
7.2
682
6.6
706
7.7
704
7.1
726
8.2
725
7.7
746
8.8
746
8.3
767
9.5
768
8.9
788 10.1
790
9.6
809 10.8
812 10.3
830 11.6
834 11.1
851 12.4
856 11.9
873 13.2
879 12.7
895 14.1
901 13.6
917 15.0

CFM
Std.
Air
23000
24000
25000
26000
27000
28000
29000
30000
31000
32000
33000
34000
35000
36000
37000
38000
39000
40000
41000
42000
43000
44000
45000
46000

2 1/4”
RPM BHP
787 12.0
798 12.6
811 13.1
825 13.8
840 14.4
856 15.1
873 15.8
890 16.6
907 17.5
925 18.4
944 19.4
962 20.4
981 21.4
1000 22.5
1020 23.6
1039 24.8
1058 25.9
1078 27.1
1099 28.4
1119 29.8
1140 31.2
1160 32.6
1181 34.2
1202 35.7

2 1/2”
RPM BHP

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

827
838
851
864
879
894
910
927
944
962
980
999
1017
1036
1055
1075
1094
1114
1133
1154
1174
1195
1215

903
913
925
939
953
968
983
999
1016
1033
1051
1069
1088
1106
1125
1144
1163
1183
1202
1222
1241

974
985
996
1009
1023
1038
1053
1069
1085
1102
1120
1137
1155
1174
1193
1211
1230
1250
1269

Outlet
Vel.
1537
1604
1671
1737
1804
1871
1938
2005
2072
2139
2205
2272
2339
2406
2473
2540
2606
2673
2740
2807
2874
2941
3008
3074

1

3

13.9
14.5
15.2
15.8
16.5
17.3
18. 1
18.9
19.8
20.8
21.9
23.0
24.1
25.2
26.4
27.6
28.9
30.2
31.6
33.0
34.5
36.0
37.6

1

18.1
18.8
19.5
20.3
21.2
22.0
22.9
23.9
24.9
26.0
27.2
28.4
29.8
31.1
32.4
33.8
35.3
36.8
38.3
39.8
41.5

5

22.8
23.6
24.4
25.3
26.3
27.3
28.3
29.4
30.5
31.7
33.0
34.4
35.8
37.5
39.0
40.6
42.2
43.8
45.5

3

1042
1053
1064
1077
1091
1105
1120
1136
1152
1169
1186
1203
1221
1240
1258

27.9
28.8
29.7
30.8
31.9
33.0
34.2
35.4
36.6
38.0
39.4
40.9
42.5
44.3
46.1

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar).
Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses.
Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.

42

1107
1118
1129
1143
1156
1171
1186
1201
1217
1234
1251
1268

33.5
34.5
35.6
36.8
38.0
39.2
40.5
41.9
43.3
44.8
46.4
48.0

1 1/4”
RPM BHP

585
596
610
624
640
657
674
692
711
730
749
768
788
808
828
848
869
890
911
933

4.9
5.2
5.6
5.9
6.3
6.7
7.2
7.7
8.3
8.8
9.4
10.0
10.7
11.4
12.1
12.9
13.7
14.5
15.4
16.4

5”
RPM BHP

1170
1181
1192
1206
1220
1234
1249
1264

39.5
40.6
41.9
43.2
44.5
45.9
47.4
48.9

1 1/2”
RPM BHP

645
657
671
685
701
718
735
753
772
790
809
828
848
867
887
908
928
949

6.6
7.0
7.4
7.8
8.3
8.8
9.3
9.9
10.6
11.3
12.0
12.7
13.5
14.2
15.1
15.9
16.9
17.8

5 1/2”
RPM BHP

1221
1230
1242
1254

44.8
46.0
47.3
48.6

1 3/4”
2”
RPM BHP RPM BHP

691
702
715
729
744
760
777
794
812
830
849
868
887
906
926
946
966

8.1
8.5
9.0
9.5
10.0
10.5
11.1
11.8
12.5
13.2
14.0
14.8
15.6
16.5
17.4
18.4
19.3

745
757
771
785
801
817
834
851
869
888
906
925
944
964
983

10.2
10.7
11.2
11.8
12.4
13.0
13.7
14.5
15.3
16.2
17.1
18.0
18.9
19.9
20.9

6”
6 1/2”
RPM BHP RPM BHP

Performance
Data

Q Fan
Size 49

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Super Q II fans are NOT available in size 49.
Horizontal fans only, for vertical units contact marketing in Lexington.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
2 - 20
—

Q Fan Size 49”
Min - Max
Motor HP
Class 2
20 - 50
—

Min - Max
Motor HP
Class 3
—
—

43

Super Q Fan Size 49”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
NA
NA
NA
NA

Fan Size 54”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

54.3 inches
18.37 square feet
18.37 square feet
14.20 x RPM
ft./minute

Performance
Data

Q Fan
Size 54

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II

1378 mm
1.707 m2
1.707 m2
4.328
m/minute

Maximum RPM
857
1151

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
292
195

Table P-12 — Size 54 Q-Fan
CFM
Std.
Air
16200
17600
19000
20400
21800
23200
24600
26000
27400
28800
30200
31600
33000
34400
35800
37200
38600
40000
41400
42800
44200
45600
47000
48400

Outlet
Vel.
881
958
1034
1110
1186
1262
1339
1415
1491
1567
1643
1720
1796
1872
1948
2025
2101
2177
2253
2329
2406
2482
2558
2634

/4”
RPM BHP
323
1.2
344
1.4
365
1.7
387
1.9
410
2.2
432
2.6
455
3.0
479
3.4
502
3.8
525
4.3
549
4.9
572
5.5
596
6.2
620
6.9
644
7.7
668
8.5
691
9.4
715 10.3
739 11.4
763 12.4
788 13.6
812 14.8
836 16.1
860 17.5

/8”
RPM BHP
344 1.6
363 1.8
383 2.1
403 2.3
425 2.7
446 3.0
468 3.4
491 3.9
513 4.3
536 4.9
559 5.5
582 6.1
605 6.8
629 7.5
652 8.3
676 9.1
699 10.1
723 11.0
747 12.1
770 13.2
794 14.4
818 15.6
842 17.0
866 18.4

/2”
RPM BHP
365
1.9
382
2.2
401
2.5
420
2.8
440
3.1
460
3.5
481
3.9
503
4.4
525
4.9
547
5.4
569
6.0
592
67
615
7.4
638
8.1
661
8.9
684
9.8
707 10.8
731 11.7
754 12.8
778 13.9
801 15.1
825 16.4
849 17.8
872 19.2

/8”
RPM BHP
387
2.4
402
2.6
419
2.9
437
3.2
456
3.6
475
4.0
495
4.5
516
4.9
537
5.4
558
6.0
580
6.6
602
7.3
624
8.0
647
8.8
669
9.6
692 10.5
715 11.5
738 12.5
761 13.6
785 14.7
808 15.9
831 17.2
855 18.6
879 20.1

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
410
2.8
422
3.1
437
3.4
475
4.4
454
3.7
488
4.8
471
4.1
503
5.2
490
4.5
519
5.6
509
5.0
537
6.1
529
5.5
555
6.6
549
6.0
574
7.2
570
6.6
594
7.9
591
7.2
613
8.6
612
7.9
633
9.3
634
8.7
654 10.0
656
9.5
675 10.9
678 10.3
696 11.8
701 11.2
718 12.7
723 12.2
740 13.7
746 13.2
762 14.8
769 14.3
784 15.9
792 15.5
807 17.1
815 16.8
829 18.4
838 18.1
852 19.8
862 19.5
875 21.2
885 20.9
898 22.7

CFM
Std.
Air
29000
30400
31800
33200
34600
36000
37400
38800
40200
41600
43000
44400
45800
47200
48600
50000
51400
52800
54200
55600
57000
58400
59800

Outlet
Vel.
1578
1654
1731
1807
1883
1959
2035
2112
2188
2264
2340
2416
2493
2569
2645
2721
2798
2874
2950
3026
3102
3179
3255

2 1/4”
RPM BHP
717 15.2
730 16.0
745 16.8
760 17.7
777 18.7
794 19.8
811 20.9
830 22.2
849 23.6
868 25.0
888 26.4
907 27.9
927 29.4
948 31.1
968 32.7
988 34.5
1010 36.4
1031 38.4
1052 40.4
1074 42.6
1096 44.8
1118 47.1
1140 49.5

2 1/2”
RPM BHP
744 16.9
755 17.7
767 18.5
782 19.5
797 20.5
813 21.6
830 22.7
847 23.9
865 25.2
884 26.8
903 28.3
923 29.8
942 31.5
962 33.1
982 34.9
1002 36.7
1023 38.6
1043 40.6
1064 42.7
1086 44.8
1107 47.1
1129 49.5
1151 51.9

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

815
826
838
852
867
883
900
917
935
953
972
991
1010
1030
1050
1070
1090
1110
1130
1151

882
893
906
920
935
950
967
984
1001
1019
1038
1057
1076
1095
1115
1135

1

3

1

22.2
23.1
24.2
25.3
26.5
27.7
29.0
30.5
32.0
33.6
35.5
37.3
39.2
41.1
43.1
45.2
47.4
49.5
51.9
54.3

5

28.2
29.3
30.5
31.8
33.2
34.6
36.1
37.7
39.5
41.3
43.3
45.5
47.7
49.9
52.1
54.5

3

946
957
970
985
999
1015
1032
1048
1066
1084
1102
1121
1140

34.8
36.1
37.5
39.0
40.6
42.2
43.9
45.8
47.7
49.8
52.0
54.5
56.9

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar).
Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses.
Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.

44

997
1007
1019
1033
1047
1062
1078
1094
1111
1129
1146

40.6
42.0
43.5
45.2
46.9
48.6
50.5
52.4
54.5
56.7
59.0

1 1/4”
RPM BHP

536
550
565
581
599
617
636
655
675
695
715
736
757
778
800
822
844
866
888
911

6.3
6.8
7.3
7.8
8.4
9.1
9.9
10.7
11.5
12.4
13.3
14.2
15.3
16.4
17.6
18.8
20.2
21.5
23.0
24.6

5”
RPM BHP

1056
1067
1080
1094
1108
1123
1139

48.3
49.9
51.6
53.5
55.4
57.4
59.5

1 1/2”
RPM BHP

582
594
608
624
641
658
676
696
715
734
754
775
795
816
837
858
880
902
924

8.1
8.6
9.2
9.8
10.5
11.2
12.0
12.9
13.9
14.9
15.9
17.0
18.1
19.3
20.6
21.9
23.4
24.9
26.5

5 1/2”
RPM BHP

1103
1113
1125

55.0
56.7
58.5

1 3/4”
2”
RPM BHP RPM BHP

625
636
650
665
681
698
716
734
753
773
792
812
833
853
873
894
916
937

10.0
10.6
11.2
11.9
12.7
13.5
14.4
15.3
16.4
17.5
18.7
19.9
21.1
22.4
23.8
25.3
26.8
28.4

666
677
690
705
720
737
754
772
791
810
829
849
869
889
909
930
951

12.1
12.7
13.5
14.2
15.0
15.9
16.9
17.9
19.2
20.4
21.6
22.9
24.3
25.7
27.2
28.8
30.4

6”
6 1/2”
RPM BHP RPM BHP

Performance
Data

Q Fan
Size 54

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Super Q fans are NOT available in size 54.
Horizontal fans only, for vertical units contact marketing in Lexington.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
2 -25
—

Q Fan Size 54”
Min - Max
Motor HP
Class 2
20 - 60
—

Min - Max
Motor HP
Class 3
—
—

45

Super Q Fan Size 54”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
NA
NA
NA
NA

Fan Size 60”
Wheel Dia.
Inlet Area
Outlet Area
Tip Speed

60.0 inches
22.38 square feet
22.38 square feet
15.71 x RPM
ft./minute

Performance
Data

Q Fan
Size 60

Pressure Class Limits

Minimum Fan RPM (Without VFRB Option)

Class
I
II

1524 mm
2.079 m2
2.079 m2
4.788
m/minute

Maximum RPM
775
1040

Motor
1800 RPM
1200 RPM

Minimum Fan RPM
314
209

Table P-13 — Size 60 Q-Fan
CFM
Std.
Air
19800
21400
23000
24600
26200
27800
29400
31000
32600
34200
35800
37400
39000
40600
42200
43800
45400
47000
48600
50200
51800
53400
55000
56600

Outlet
Vel.
884
956
1027
1099
1170
1242
1313
1385
1456
1528
1599
1671
1742
1814
1885
1957
2028
2100
2171
2243
2314
2386
2457
2529

/4”
RPM BHP
291
1.5
309
1.7
327
2.0
346
2.3
365
2.6
384
3.0
403
3.4
423
3.9
442
4.4
462
4.9
482
5.5
502
6.2
522
6.9
542
7.7
562
8.5
582
9.4
602 10.3
622 11.3
643 12.4
663 13.6
683 14.8
704 16.1
724 17.5
744 18.9

/8”
RPM BHP
311 1.9
327 2.2
344 2.5
361 2.8
379 3.2
397 3.6
415 4.0
434 4.5
453 5.0
472 5.6
491 6.2
511 6.9
530 7.6
550 8.4
570 9.2
590 10.1
610 11.1
630 12.2
650 13.3
670 14.4
690 15.7
710 17.0
730 18.4
750 19.9

/2”
RPM BHP
330
2.4
344
2.6
360
3.0
376
3.3
393
3.7
410
4.1
428
4.6
446
5.1
464
5.6
482
6.2
501
6.9
520
7.6
539
8.3
559
9.1
578 10.0
597 10.9
617 11.9
637 13.0
656 14.1
676 15.3
696 16.6
716 17.9
736 19.4
756 20.9

/8”
RPM BHP
350
2.9
362
3.2
376
3.5
391
3.9
407
4.3
424
4.7
441
5.2
458
5.7
475
6.3
493
6.9
511
7.6
530
8.3
548
9.1
567
9.9
586 10.8
605 11.8
625 12.8
644 13.9
663 15.0
683 16.2
703 17.5
722 18.9
742 20.4
762 21.9

Total Static Pressure
/4”
1”
RPM BHP
RPM BHP
370
3.5
381
3.7
393
4.1
428
5.3
407
4.4
439
5.7
422
4.9
451
6.2
437
5.3
464
6.7
453
5.9
479
7.2
470
6.4
494
7.8
487
7.0
510
8.5
504
7.7
526
9.2
521
8.3
543
9.9
539
9.1
560 10.7
558
9.9
576 11.5
576 10.7
594 12.4
595 11.6
612 13.4
613 12.6
630 14.4
632 13.7
648 15.5
651 14.8
666 16.6
671 15.9
685 17.8
690 17.2
704 19.1
709 18.5
723 20.5
729 19.9
742 21.9
748 21.4
761 23.4
768 22.9
780 25.0

CFM
Std.
Air
35000
36600
38200
39800
41400
43000
44600
46200
47800
49400
51000
52600
54200
55800
57400
59000
60600
62200
63800
65400
67000
68600
70200
71800

Outlet
Vel.
1563
1635
1706
1778
1849
1921
1992
2064
2135
2207
2278
2350
2421
2493
2564
2636
2707
2779
2850
2922
2993
3065
3136
3208

2 1/4”
RPM BHP
645 18.3
656 19.2
668 20.1
681 21.2
694 22.2
708 23.4
723 24.6
738 26.0
754 27.4
770 29.1
786 30.6
803 32.3
819 34.0
836 35.8
853 37.6
870 39.5
888 41.5
905 43.6
923 45.8
941 48.1
959 50.5
978 53.0
996 55.6
1015 58.3

2 1/2”
RPM BHP

3”
RPM BHP

3 1/2”
RPM BHP

Total Static Pressure
4”
4 1/2”
RPM BHP
RPM BHP

1

3

679
689
701
713
726
740
754
769
785
801
817
833
850
866
883
900
917
935
952
970
988
1006
1025

21.3
22.2
23.3
24.4
25.6
26.8
28.1
29.6
31.1
32.9
34.6
36.4
38.2
40.1
42.1
44.2
46.3
48.5
50.8
53.3
55.8
58.4
61.2

1

742
752
763
775
788
801
816
830
845
860
877
893
909
925
942
959
976
992
1010
1027

27.7
28.9
30.1
31.4
32.8
34.2
35.7
37.4
39.1
41.0
43.1
45.2
47.3
49.5
51.8
54.1
56.5
59.0
61.6
64.3

5

801
811
822
834
847
860
874
888
903
918
934
950
966
982
999
1016
1032

35.0
36.3
37.7
39.2
40.8
42.5
44.2
46.0
48.0
50.1
52.3
54.9
57.3
59.7
62.3
64.9
67.6

3

858
868
879
891
904
917
931
945
960
974
990
1006
1022
1038

42.9
44.4
46.1
47.8
49.6
51.5
53.4
55.5
57.7
60.0
62.5
65.1
68.1
70.8

Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar).
Performance shown is for installation Type B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses.
Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.
Fan tables cover part of fan operating range; fan curves show full operating range.

46

903
912
922
934
946
959
972
985
1000
1014
1029

50.0
51.6
53.3
55.3
57.2
59.2
61.3
63.5
65.8
68.3
70.9

1 1/4”
RPM BHP

482
493
505
519
533
548
563
580
596
613
630
647
664
682
700
718
736
755
776
792

7.6
8.1
8.7
9.3
9.9
10.6
11.4
12.3
13.2
14.2
15.2
16.2
17.4
18.5
19.8
21.1
22.5
24.0
25.6
27.2

5”
RPM BHP

955
965
975
987
999
1012
1025
1039

59.3
61.1
63.0
65.2
67.4
69.6
72.0
74.4

1 1/2”
RPM BHP

523
532
544
557
570
585
600
615
631
648
664
681
698
715
733
750
768
787
805

9.7
10.3
10.9
11.6
12.3
13.1
14.0
14.9
16.0
17.1
18.2
19.3
20.6
21.8
23.2
24.7
26.2
27.8
29.5

5 1/2”
RPM BHP

997
1006
1016
1027
1039

67.3
69.2
71.3
73.5
75.9

1 3/4”
2”
RPM BHP RPM BHP

570
581
593
606
620
634
650
665
681
698
714
731
748
765
782
800
818

12.6
13.3
14.1
14.9
15.7
16.7
17.7
18.8
20.1
21.3
22.6
24.0
25.4
26.9
28.4
30.1
31.8

606
616
628
641
654
668
683
698
714
730
746
763
780
797
814
831

15.1
15.9
16.8
17.7
18.6
19.6
20.8
22.0
23.3
24.7
26.0
27.6
29.2
30.8
32.4
34.2

6”
6 1/2”
RPM BHP RPM BHP

Performance
Data

Q Fan
Size 60

____ Fan RPM Line
- - - Motor HP Line

Standard fans can be selected ONLY in the shaded area.
Thrust restrains are to be used with fans Class 3 or motors 40 hp and up.
Super Q fans are NOT available in size 60.
Horizontal fans only, for vertical units contact marketing in Lexington.
Minimum and Maximum Motor HP Ranges

Arrangement 9
Arrangement 1

Min - Max
Motor HP
Class 1
3 - 30
—

Q Fan Size 60”
Min - Max
Motor HP
Class 2
25 - 75
—

Min - Max
Motor HP
Class 3
—
—

47

Super Q Fan Size 60”
Min - Max
Min - Max
Motor HP
Motor HP
Class 1
Class 2
NA
NA
NA
NA

Dimensional
Data and
Weights
Roughing-In Dimensions
Arrangement 9

Arrangement 9 Dimensions

Size
16
16
16
19
19
19
21
21
21
24
24
24
27
27
27
30
30
30
33
33
33
36
36
36
40
40
40
44
44
44

Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III

In
A
19 3/8
19 3/8
19 3/8
21 7/8
21 7/8
21 7/8
24 5/8
24 5/8
24 5/8
28 1/8
28 1/8
28 1/8
30 7/8
30 7/8
30 7/8
34 3/8
34 3/8
34 3/8
37 3/4
37 3/4
37 3/4
41 3/4
41 3/4
41 3/4
46
46
46
50 7/8
50 7/8
50 7/8

Out
B
17 7/8
17 7/8
17 7/8
20 1/2
20 1/2
20 1/2
23 1/8
23 1/8
23 1/8
26 3/8
26 3/8
26 3/8
29
29
29
32 1/4
32 1/4
32 1/4
35 1/2
35 1/2
35 1/2
39 1/4
39 1/4
39 1/4
43 1/4
43 1/4
43 1/4
47 3/4
47 3/4
47 3/4

L
28 3/8
28 3/8
28 3/8
28 7/8
28 7/8
28 7/8
32 3/4
32 3/4
32 3/4
35 3/8
35 3/8
35 3/8
38
38
38
41 1/8
41 1/8
41 1/8
45
45
45
49 1/2
49 1/2
49 1/2
53 3/4
53 3/4
53 3/4
60 5/8
60 5/8
60 5/8

Approximate weights are without motor and drive.
Motor position should be determined from the outlet side.

48

W
23 5/8
23 5/8
23 5/8
26 1/8
26 1/8
26 1/8
29
29
29
32 7/8
32 7/8
32 7/8
35 3/4
35 3/4
35 3/4
39 1/8
39 1/8
39 1/8
42 5/8
42 5/8
42 5/8
47 5/8
47 5/8
47 5/8
51 7/8
51 7/8
51 7/8
56 3/4
56 3/4
56 3/4

H
Max.
45
45
45
48 1/4
48 1/4
48 1/4
51 3/8
51 3/8
51 3/8
55 1/4
55 1/4
55 1/4
58 1/8
58 1/8
58 1/8
61 5/8
61 5/8
61 5/8
65 1/8
65 1/8
65 1/8
69 5/8
69 5/8
69 5/8
77
77
77
82
82
82

Drive
Shaft
Dia.
15
/16
15
/16
1 3/16
15
/16
15
/16
1 3/16
15
/16
1 3/16
1 3/16
1 3/16
1 3/16
1 11/16
1 3/16
1 7/16
1 15/16
1 3/16
1 7/16
1 15/16
1 3/16
1 7/16
2 3/16
1 7/16
1 11/16
2 7/16
1 7/16
1 11/16
2 15/16
1 11/16
1 15/16
3 7/16

Unit
Net Wt.
Lbs.
115
115
120
135
135
140
175
180
185
215
220
225
275
290
305
350
360
375
440
450
485
575
580
630
710
720
800
830
850
950

Dimensional
Data and
Weights
Roughing-In Dimensions
Arrangement1

Arrangement 1 Dimensions

Size
16
19
21
24
27
27
30
30
33
33
33
36
36
36
40
40
40
44
44
44

Class III
Class III
Class III
Class III
Class II
Class III
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III
Class I
Class II
Class III

In
A
19 3/8
21 7/8
24 5/8
28 1/8
30 7/8
30 7/8
34 3/8
34 3/8
37 3/4
37 3/4
37 3/4
41 3/4
41 3/4
41 3/4
46
46
46
50 7/8
50 7/8
50 7/8

Out
B
17 7/8
20 1/2
23 1/8
26 3/8
29
29
32 1/4
32 1/4
35 1/2
35 1/2
35 1/2
39 1/4
39 1/4
39 1/4
43 1/4
43 1/4
43 1/4
47 3/4
47 3/4
47 3/4

L
28 3/8
28 7/8
32 3/4
35 3/8
38
38
41 1/8
41 1/8
45
45
45
49 1/2
49 1/2
49 1/2
53 3/4
53 3/4
53 3/4
60 5/8
60 5/8
60 5/8

W
23 5/8
26 1/8
29
32 7/8
35 3/4
35 3/4
39 1/8
39 1/8
42 5/8
42 5/8
42 5/8
47 5/8
47 5/8
47 5/8
51 7/8
51 7/8
51 7/8
56 3/4
56 3/4
56 3/4

H
Max.
45
47 1/2
52 1/4
56 1/8
57 1/8
62 3/4
60 1/2
66 1/8
61 3/8
65 7/8
73 7/8
69
70 5/8
78 7/8
73 1/4
78 7/8
88 5/8
78 1/8
83 3/4
93 1/2

Drive
Shaft
Dia.
1 3/16
1 3/16
1 3/16
1 11/16
1 7/16
1 15/16
1 7/16
1 15/16
1 3/16
1 7/16
2 3/16
1 7/16
1 11/16
2 7/16
1 7/16
1 11/16
2 15/16
1 11/16
1 15/16
3 7/16

Unit
Net Wt.
Lbs.
120
140
185
225
290
305
360
375
440
450
485
575
580
630
710
720
800
830
850
950

Arrangement 1, Class I and II require an integral base (supplied by others). Class III should be mounted on an inertia pad
(no integral base required with inertia pad).
Approximate weights are without motor and drive.

49

Dimensional
Data and
Weights
Roughing-In Dimensions
Arrangement 9

Arrangement 9 Dimensions

Size
49
49
54
54
60
60

Class I
Class II
Class I
Class II
Class I
Class II

A
52 3/8
52 3/8
58
58
64 1/8
64 1/8

L
76
76
81 7/8
81 7/8
92
92

Approximate weights are without motor and drive.

50

W
57 1/8
57 1/8
62 3/4
62 3/4
69 3/4
69 3/4

H
Max.
79 7/8
85 1/2
85 1/2
91 1/4
96 1/4
108 1/4

Drive
Shaft
Dia.
1 11/16
2 3/16
1 15/16
2 7/16
2 3/16
2 11/16

Unit
Net Wt.
Lbs.
1020
1075
1090
1140
1730
1830

Dimensional
Data and
Weights

Q Fan
Accessory
Dimensions

Figure D-1 — Q Fan Inlet Vanes

Table D-1 — Inlet Vane Dimensions
Fan Size
16
19
21
24
27
30
33
36
40
44
49
54
60

A
19.562
22.062
24.875
28.312
31.125
34.562
38.000
42.062
46.312
51.188
52.562
58.250
64.250

C
11.625
12.500
12.375
12.000
12.375
12.375
12.813
14.250
17.250
18.438
18.188
19.000
20.750

Number Approx.
of blades Wt. Lbs.
9
85
11
110
11
120
11
140
11
150
11
175
15
185
15
245
15
300
17
353
17
391
17
478
17
558

Figure D-2 — Q Fan Duct Outlet Diffuser, Sizes 16-44

Table D-2 — Outlet Diffuser (Equalizer)
Dimensions

½”
A

1”

B

D

C
E

51

Fan Size
16
19
21
24
27
30
33
36
40
44

A
17 7/8
20 1/2
23 1/4
26 3/8
29 1/8
32 1/4
35 1/2
39 1/4
43 1/4
47 3/4

B
19 1/4
21 5/8
24 1/2
27 7/8
30 3/4
34 1/4
37 5/8
41 5/8
45 7/8
50 3/4

C
3
3 1/2
4
4 1/2
5
5 1/2
6
6 5/8
7 3/8
8 1/8

D
1 1/8
1
1 1/4
1 1/8
1 1/8
1 1/4
1 1/4
1 1/4
1 1/8
1 1/4

E
5 1/8
5 1/2
6 1/8
6 5/8
7
7 3/4
8 1/4
8 7/8
9 3/8
10 3/8

Dimensional
Data and
Weights

Q Fan
Accessory
Dimensions

Figure D-3 — Super Q II 16-44 Sizes

Table D-3
Unit
Size
16
19
21
24
27
30
33
36
40
44

A
11 7/8
13 1/8
14 1/2
16 1/2
17 7/8
19 7/8
21 3/8
24 1/8
26 1/4
28 7/8

B
15 1/4
16 1/2
17 7/8
19 3/4
21 1/4
23
24 5/8
27 1/8
29 1/4
31 3/4

C
45 3/8
45 7/8
49 3/4
52 3/8
55
58 1/8
61 7/8
66 1/2
70 3/4
77 5/8

D
28
30 1/2
33 3/8
37 1/4
40 1/8
43 3/4
47 1/8
53
56 1/2
62 1/4

E
20 1/8
22 1/8
26 1/8
28 1/8
32 1/8
34 1/8
38 1/8
42 1/8
46 1/8
52 1/8

Inlet Area
Sq. Ft.
2.2
2.6
3.7
4.3
5.6
6.3
7.9
9.2
11.6
14.9

F
17 7/8
19 7/8
22 7/8
25 7/8
28 7/8
31 7/8
35 7/8
39 7/8
43 7/8
47 7/8

* Approximate weights are without motor and drive.

52

Outlet Area
Sq. Ft.
1.8
2.2
2.9
3.7
4.6
5.6
7.0
8.7
10.6
12.6

G
24
26
30
32
36
38
42
46
50
56

H
30
32 1/2
35 3/8
39 1/4
42 1/8
45 3/4
49 1/8
55
58 1/2
64 1/4

L
39 1/2
40
43 7/8
46 3/8
49 1/8
52 1/4
56
60 5/8
64 7/8
71 3/4

W
44 1/4
46 7/8
50
55
57 7/8
63 1/2
70 1/2
75 1/4
81 7/8
86 3/4

Unit
Weights*
411
451
537
634
742
881
1048
1375
1567
1858

Dimensional
Data and
Weights

Q Fan
Accessory
Dimensions

fFigure D-4 — Q Fan/Super Q II Plus Outlet Silencers

Table D-4 — Short Outlet Plus Silencer
Fan
Size
16”
19”
21”
24”
27”
30”
33”
36”
40”
44”
49”
54”
60”

D
18”
20”
23”
26”
29”
32”
36”
40”
44”
48”
52”
58”
64”

B
26”
28”
31”
34”
37”
40”
44”
48”
52”
56”
60”
66”
72”

L
18”
20”
23”
26”
29”
32”
36”
40”
44”
48”
52”
58”
64”

Approx.
Weight
68
82
102
130
166
182
260
315
426
534
652
850
1050

Note: Silencer center body is adjustable. D dimension is
nominal duct size on entering air end and fitting size on
leaving air end.

Table D-5 — Long Outlet Plus Silencer
Fan
Size
16”
19”
21”
24”
27”
30”
33”
36”
40”
44”
49”
54”
60”

D
18”
20”
23”
26”
29”
32”
36”
40”
44”
48”
52”
58”
64”

B
26”
28”
31”
34”
37”
40”
44”
48”
52”
56”
60”
66”
72”

L
36”
40”
46”
52”
58”
64”
72”
80”
88”
96”
104”
116”
128”

Approx.
Weight
136
164
204
260
332
364
520
630
852
1068
1304
1700
2100

Note: Silencer center body is adjustable. D
dimension is nominal duct size on entering air end
and fitting size on leaving air end.

Figure D-5 — Q Fan/Super Q II Plus Inlet Silencers

Table D-6 — Short Inlet Plus Silencer
Fan
Size
16”
19”
21”
24”
27”
30”
33”
36”
40”
44”
49”
54”
60”

D
20”
22”
26”
28”
32”
34”
38”
42”
46”
52”
52”
58”
64”

B
28”
30”
34”
36”
40”
42”
46”
50”
54”
60”
60”
66”
72”

L
20”
22”
26”
28”
32”
34”
38”
42”
46”
52”
52”
58”
64”

Approx.
Weight
49
59
85
98
128
148
185
228
317
378
444
680
852

Note: Silencer center body is fixed in position.

53

Table D-7 — Long Inlet Plus Silencer
Fan
Size
16”
19”
21”
24”
27”
30”
33”
36”
40”
44”
49”
54”
60”

D
20”
22”
26”
28”
32”
34”
38”
42”
46”
52”
52”
58”
64”

B
28”
30”
34”
36”
40”
42”
46”
50”
54”
60”
60”
66”
72”

L
40”
44”
52”
56”
64”
68”
76”
84”
92”
104”
104”
116”
128”

Approx.
Weight
97
117
170
196
256
296
370
455
634
755
888
1359
1704

Note: Silencer center body is fixed in position.

Mechanical
Specifications
Q FAN ASSEMBLY
Housing
Housings are 14-gauge steel
hydraulically expanded to form
integral inlet bell and diffuser sections.
Hydraulically expanded stiffening ring
welded in area of wheel raceway. On
VAV variable speed fan units, fan inlet
supports are structurally reinforced to
handle extra stresses of variable speed
fan modulation and fan is balanced at
ten different fan speeds over the
desired operating range.
Inlet/Outlet Shells
Fan has tapered inlet and outlet
shells over fan hub assembly. Shells
uniformly accelerate air through
blade area. End bell covers fan drive
assembly, thereby reducing flow
turbulence. Eight fan blades are
precision aluminum casting with airfoil
cross sections. Blade to shell clearance
is in the range of 30 mils.
Fan Wheel
Fans size 16-44 have fan wheel of
precision aluminum casting with eight
radially projected blades with air-foil
cross sections.
Fans size 49-60 have fan wheel of
sixteen precision cast and machined
aluminum blades mounted on a steel
wheel plate.
All wheels are dynamically balanced
and keyed to fan shaft.
Diffuser
Cast aluminum diffuser with 29 radially
projected straightening vanes with
airfoil cross sections. Leading edge of
vanes are curved to reduce tone noise
generation. Clips on almost every other
vane eliminate harmonic ring potential.
Shaft
Solid AISI-C1040 hot-rolled steel, turned
and polished. Close tolerances
maintained where shaft makes contact
with bearings.
Bearings
Precision, flange-mounted, self-aligning
ball bearings at inlet and discharge.
Bearings on all sizes are grease
lubricated and selected for a minimum
average life (AFBMA L-50) in excess of
200,000 hours at maximum cataloged
operating conditions. Bearing
greaselines are extended out through
fan shell for easy servicing.

Drives
Mechanical drives are computer
selected for low noise, low
maintenance operation. Center
distance and arc of contact is
maintained within prefixed limits.
Constant speed fans use variable or
constant pitch drives; variable speed
modulated fans use fixed drives only.
SUPER QUIET II FANS
Trane Super Quiet II (SQ2) fans include
fan housing, wheel, shaft, bearings,
diffuser section, motor mounting
support, ODP standard or high
efficiency motor, drives, spring
isolation in acoustically-treated casing
in a factory-assembled unit. Fan motors
are outside of airstream.
Constant volume units (SQ2C) are
equipped with variable or constant
pitch drives. Variable air volume units
(SQ2V) use adjustable frequency
inverters for fan capacity modulation
and must have constant pitch drives.
Inlet vanes are NOT available for
Super Q II fans.
ENCLOSURE
Fans are internally isolated on four
height saving spring isolators and
then flex connected inside of an airtight
acoustical enclosure. Walls are
16-gauge steel, internally lined with
two-inch thick three-pound per
square foot density fiberglass. Airside
surface of acoustical lining is coated
with black matte faced lining to prevent
scuffing.
Enclosure has two large full size
side access panels. Access panels are
fully gasketed and mechanically
attached to casing for easy removal.
Enclosure has access panel positioning
feet to insure easy access panel
replacement after removal.
Duct connections in enclosure end
panels slip connect to standard U.S.
round duct sizes.
Fan grease lines are extended through
enclosure for easy servicing of fan.
Optional fan motor leads are extended
through casing for easier installation.
Two rails support the entire enclosure.
Rails can be rested on floor or hung
from the ceiling with steel rods. Ducts
can be directly connected to enclosure
since fan is internally isolated.
Enclosure is rated for four-inch
negative or five-inch positive pressure.

54

Mechanical
Specifications
ACCESSORIES
Inlet Screen (Q, SQ2)
Heavy-gauge steel wire mesh.
Inlet Bellmouth (Q, SQ2)
On unducted inlets, the radius
bellmouth uniformly accelerates air
into the fan, reducing noise and energy
requirements.
Plus Duct Silencer (Q, SQ2)
Significantly attenuates fan airborne
sound levels. Center body of round
silencer is dimensional matched to
Q-fan hub. Center body is field
adjustable in the direction of airflow.
This allows hub to be located close to
Q-fan, thereby reducing flow
generated turbulence and noise.
Silencers can be on inlet and/or outlet
and come in short and long length
versions. Silencers are flex connected
to Q fans and slip connected directly to
Super Q II enclosures. Silencers are
shipped loose for field installation.
Inlet Flange (Q)
Rolled steel ring, factory-mounted, for
flanged duct connection. Sizes 16 to 21
one-inch flanges, sizes 27 to 44 are
1½-inch flanges.
Adjustable Inlet Vanes
11 steel vanes operated by a positive
peripheral control mechanism located
out of the airstream. Each vane is
supported at both ends by a precision
bronze bearing. The control arm is
suitable for manual or automatic
operation. Inlet vanes are shipped
loose for field installation.

55

Outlet Flange (Q)
Rolled steel ring, factory-mounted, for
flanged duct connection.
Outlet Diffuser (Equalizer) (Q)
Steel spinning with 30 degree included
diffusion angle. Permit same size slipduct connection on discharge as inlet.
Outlet Screen (Q)
Heavy-gauge steel wire mesh.
Outlet Flow Stabilization
Screen (Q, SQ2)
Similar to outlet screen, but openings
are much smaller. Designed to act as
an airflow stabilization device on the
outlet of each fan.

The Trane Company
An American Standard Company
www.trane.com
For more information contact your
local sales office or e-mail us at
comfort@trane.com

Since The Trane Company has a policy of continuous
product improvement, it reserves the right to change
design and specification without notice.

Library
Product Section
Product
Model
Literature Type
Sequence
Date
File No.
Supersedes
Ordering No.

Product Literature
Air Handling
Fans
000
Data Sales Catalog
2
August 2000
PL-AH-FAN-000-DS-2-0800
FAN-DS-2 597
FAN-DS-2



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