Zephyr S) Specifications
Bulletin Z05
ZEPHYR
Model: Z
Ceiling Fan
Zephyr Fans
Introduction
Table of Contents
CERTIFIED RATINGS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Zephyr Fans
PennBarry certifies that the Zephyr
models shown on pages 4, 5, 13,
14 and 16 are licensed to bear the
AMCA Seal. The ratings shown
are based on tests and procedures
performed in accordance with
AMCA Publication 211 and AMCA
Publication 311 and comply with
the requirements of the AMCA
Certified Ratings Program.
PennBarry certifies that the Zephyr
models shown on pages 3, 4 and
12 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.
Transfan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Z1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
ZL1 & ZL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Ceiling Mounted / Inline Zephyr
(Performances & Dimensions) . . . . . . . . . . . . . . . . . .13
Large Capacity Zephyr
(Performances & Dimensions) . . . . . . . . . . . . . . . . . .15
Fan Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Sound Data Notes . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Engineering Notes . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Sample Specifications . . . . . . . . . . . . . . . . . . . . . . . .22
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
FANSIZER®
Product Selection Software
UL and CSA Certification
Zephyr fans carry the UL label, UL 705,
(ZACT), File #E28413.
Zephyrette & Zephyr Jr. . . . . . . . . . . . . . . . . . . . . . . . .2
®
Zephyrs are also certified by the
Canadian Standard Association
(File #LR13309).
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Point your internet web browser to www.PennBarry.com for
up-to-the-minute information including:
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FanSizer software allows you to select the best centrifugal or
axial unit for your application. Input CFM, static pressure,
and FanSizer will make the optimum selection. It allows you
to complete job schedules which you can store, modify and
print in seconds. Features include: on-line help, on-screen
product drawings and dimensions, and complete text
specifications. In addition, you can convert job schedules to
ASCII code for use with other programs like word
processing.
FANCAD®
Library of CAD Drawings
FanCad is a library of drawings for use with computer-aided
design (CAD) systems. FanCad’s pre-drawn details can save
hours of drafting time. Included are all popular PennBarry
fans and related items.
FanSizer and FanCad are registered trademarks.
©2005 PennBarry™ All rights reserved.
Following publication of this catalog changes may have been made in standard equipment, options and the like that would not be included.
We reserve the right to make changes at any time, without notice, to models, specifications, options, availability, etc.
This bulletin illustrates the appearance of PennBarry products at the time of publication and we reserve the right to make changes
in design and construction at anytime without notice. Your local sales representative is the best source for current information.
PENNBARRY
1
Zephyrette & Zephyr Jr.
Zephyr Low Profile Fans
Features:
• Quiet operation – low sone level, non-overloading low power
consumption design
• Lek-Trol™- variable speed controller can be built into fan housing
for precise system balancing and energy conservation
• Thermal overload protection integral with motor
• Rustless, durable housing of galvanized steel
• UL approved
Performance and Dimensional Data
Model
Number
Max
Watts
Motor
60Hz
AC
Motor
RPM
Shipping
Weight
(lbs.)
ZT
48
115/1
1200
19
ZJ1
125
115/1
1200
19
FAN CAPACITY – CUBIC FEET PER MINUTE
SP
CFM
SONES
R PM
CFM
SONES
RPM
0.0"
91
1.8
8 40
149
2.0
760
.10"
88
2.2
930
156
2.3
1000
.125"
88
2.3
970
157
2.4
1020
.250"
85
2.8
1110
158
3.0
1150
.375"
75
3.0
1280
160
3.4
1240
.500"
49
3.2
1460
153
3.4
1360
.625"
–
–
–
138
3.6
1450
.750"
–
–
–
117
3.5
1520
Performance shown is for installation type A - Free inlet, Free outlet. Performance ratings include the effects of inlet grille and backdraft damper in the
airstream. Speed (RPM) shown is nominal. Performance is based on actual speed of test. The sound ratings shown are loudness values in fan sones at 5'
(1.5m) in a hemispherical free field calculated per AMCA std. 301. Values shown are for installation Type A: free inlet fan sone levels. The AMCA Certified
Ratings Seal applies to air performance ratings only.
Installation Options
Typical Ceiling Installation
1. Blower Housing
2. Duct Connection Sleeve
3. Discharge Duct
4. Finished Ceiling
5. Backdraft Damper
6. Removable Deluxe Face Grille
7. Electrical Leads for Conduit
8. Adjustable Mounting Flanges
Suggested Specifications
Through the roof
Through the eave or into attic spaces
Optional Accessories
2
Flat Roof Cap
WCF8
Sloped Roof Cap
SL20
Wall Cap
WC10
Speed Control
LT30
Timer Switch
AM12
Ceiling Radiation Damper
DDA6
PENNBARRY
Through the wall
All ceiling and/or wall mounted fans indicated on the plans
and schedule shall be Zephyr Jr., or Zephyrette models by
PennBarry, 1401 North Plano Road, Richardson, TX 75081.
Air deliveries and maximum sone levels shall be as
indicated on the plans. Fans shall be listed with
Underwriters Laboratories. Fans shall feature true steel
centrifugal wheels and the galvanized steel fan casing
shall incorporate an integral backdraft damper. Motor
speed shall not exceed listed RPM. Grille shall be of white
egg-crate shape design, comply with OSHA requirements
and provide 85% free open area. Terminal box shall be
provided with cord, plug and receptacle. Entire fan, motor
and wheel assembly shall be removable without disturbing
the housing.
Transfan
Room-to-Room Fan
Zephyr Transfan
Features:
Wood or coal burning stoves, gas
or oil fired space heaters and fireplaces do an excellent job of economically heating the surrounding
space. The PennBarry Transfan is
now available to move that heated
air through partitions or ceilings to
other rooms in your home or office.
The Transfan spreads the value of
your stove or heater. It’s easy to
install, quiet and economical, and effectively moves heated
air to remote rooms.
• Fits easily between wall studs or ceiling joists
• Variable speed controller is built-in for individual
comfort adjustment
• Attractive face grilles diffuse air evenly
• Moves up to 255 cubic feet of air every minute
• Installs in walls 3 3/4" to 5" thick with adjustable sleeve
• Runs quietly even at top speed
• 490 rpm fan speed
• 115 volts single phase
• 255 CFM air capacity at 0" S.P.
• 60/50 Hz
Each PennBarry Transfan has an integral Lek-Trol™ speed
controller to modulate airflow. Capacity can be varied from 50
to 255 cubic feet of air per minute. Power consumed is less
than 60 watts making the Transfan a great energy stretcher.
• 2.2 sones quiet operation
• 9.5 lb., shipping weight
NOTE: Performance shown is for installation type A - Free inlet, Free outlet.
Performance ratings include the effects of inlet and outlet grilles installed.
Speed (RPM) shown is nominal. Performance is based on actual speed of
test. The sound ratings shown are loudness values in fan sones at 5' (1.5m)
in a hemispherical free field calculated per AMCA std. 301. Values shown are
for installation Type A: free inlet fan sone levels. The AMCA Certified Ratings
Seal applies to air performance ratings only.
Compact Transfans Are Easy To Install
Installation Instructions:
1. Cut 12 3/4" wide x 10 1/4" high openings between wall
studs or ceiling joists (template provided).
Transfan with
Grille Attached
Studs
2. Run 115/1/60 (house current) to the opening.
Wall
Air
w
Flo
NOTE: The Transfan has its own built-in, on-off, variable speed
controller so a separate switch is not needed if the Transfan is located
within arm’s reach.
3. Measure the wall thickness and slide the telescoping
sleeve to its required depth. Standard Transfans fit openings 3 3/4" to 5" thick. For thinner walls, add a frame
around the opening.
4. Place the Transfan in the wall and draw UL listed wire
through the bottom hole of the junction box. Make secure
electrical connection with two wire nuts and replace junction box cover.
5. Slide the Transfan into its permanent position (be sure
the grille that was shipped attached to the unit-with knobis facing the room into which airflow is to be directed)
and install the unattached grille.
S/M Screw
Wire
Nuts
Telescoping
Sleeve
Ground Screw
120 V. Power Source
123/4"
Two
Bolts
‘ROMEX’
or ‘BX’
2 X 14 GA.
+ Ground
(By Others)
(By Others)
Junction
Box Cover
Grille
Detached
Effect Of Speed Control
on CFM Capacity
Dimensional Data
Field Wiring Method
11"
101/4"
37/8"
Speed Control Positions
Adjustable
81/2" DIA.
133/4"
101/4"
FULL RPM POS.
Variable Speed Contoller
with S.P.S.T. Switch
3/4 RPM POS.
k
ac
Bl
1/2 RPM POS.
White
Black
Black
Ground
Wire
1/4 RPM POS.
LOW RPM POS.
Cubic Feet Per Minute of Air
Motor
120 Volt
Thermoprotected
White
Triangular Box
PENNBARRY
3
Z1
Compact Economical Fan
Features:
• 56 CFM, 3.4 Sones @ 0.0" Ps
• Quiet-designed durable blower wheels
• Torsion spring grille mounting – no tools needed
• Compact housings fit easily between wall studs
• Double strength steel mounting flanges with keyhole
lots for fast, sturdy installation
• UL listed for use over bathtubs and showers when
connected to a GFCI protected branch circuit
• AMCA licensed for both air and sound
Optional Accessories
FLAT ROOF CAP
WCF8
SLOPED ROOF CAP
SL20
WALL CAP
WC10
SPEED CONTROL
LT 30
TIMER SWITCH
AM12
CEILING RADIATION DAMPER
NA
71/2"
71/4"
3" Dia.
9"
35/8"
91/4"
3/8"
Performance Data
Model No.
Z1
CFM at Static Pressure (Ps - Inches of H2O)
SONES at
0.0" Ps
0.0
.1
.125
.25
.375
.5
3 .4
56
51
50
46
41
32
Volts
Watts
Nominal
RPM
Duct
Dia.
120
55
1700
3"
Performance shown is for installation type B - Free inlet, ducted outlet. Performance ratings include the effects of inlet grille and backdraft damper in the
airstream. Speed (RPM) shown is nominal. Performance is based on actual speed of test. The sound ratings shown are loudness values in fan sones at 5'
(1.5m) in a hemispherical free field calculated per AMCA std. 301. Values shown are for installation Type B: free inlet fan sone levels.
4
PENNBARRY
ZL1 & ZL2
Ceiling Fans with Light
Features:
• 62 CFM, 1.9 Sones @ 0.0" Ps – Model ZL1
• 97 CFM, 4.0 Sones @ 0.0" Ps – Model ZL2
• 100 watt lighting (bulb not included)
• Totally enclosed low RPM motor with permanently
sealed bearings
• Centrifugal blower wheel
• White molded polymeric grille with unbreakable light lens
• Plug-in receptacles for fan and light
• Rugged steel housing with built-in mounting brackets
• 4" polymeric duct connector
• Durable damper quietly eliminates backdrafts –
no metallic clatter
• UL listed for use over bathtubs and showers when
connected to a GFCI protected branch circuit
• AMCA licensed for both air and sound
Optional Accessories
81/4"
33/8"
8"
4"
Dia.
53/4"
105/8"
111/8"
2"
FLAT ROOF CAP
WCF8
SLOPED ROOF CAP
SL20
WALL CAP
WC10
SPEED CONTROL
LT 30
TIMER SWITCH
AM12
CEILING RADIATION DAMPER
NA
Performance Data
CFM at Static Pressure (Ps - Inches of H 2 0)
Model
No.
Sones at
0.0" Ps
0.0
.1
.125
.250
.37
ZL1
1.9
62
51
49
32
9
ZL2
4
97
87
84
69
50
Volts
Watts
Nominal
RPM
Duct
Dia.
-
120
30
1070
4"
19
120
50
1380
4"
.500
Performance shown is for installation type B - Free inlet, ducted outlet. Performance ratings include the effects of inlet grille and backdraft damper in the airstream.
Speed (RPM) shown is nominal. Performance is based on actual speed of test. The sound ratings shown are loudness values in fan sones at 5' (1.5m) in a hemispherical free field calculated per AMCA std. 301. Values shown are for installation Type B: free inlet fan sone levels.
PENNBARRY
5
Features & Benefits
Zephyr Fans
Zephyr ceiling and inline fans are designed and constructed
to create a quiet and reliable product. Each unit is fully
assembled and tested prior to shipment. Extensive combinations of wheel sizes and speeds enable the Zephyr to cover
a wide range of CFM.
High Static Pressures
Complete Range Of Performance
EasyTap Speed Selection
PennBarry provides the most ceiling fan options of any manufacturer. With 17 different models spaced evenly across the
CFM and static pressure spectrums, there is a Zephyr
to meet each of your requirements.
When higher static pressures are encountered, the Zephyr H
series fans excel. Faster RPM allow these fans to better sustain airflow as static pressure increases. This makes them
well suited for inline applications.
Selected Zephyrs (Z6S/H, Z8S/H, and Z10S/H) are provided
with dual speed motors designed to run at nominal speeds of
1050 and 1550 RPM. By simply changing one wire tap, a
fan’s speed can be switched. This ability to alter speed and
air flow allows on the spot adjustments to deal with unforeseen circumstances. Systems deficiencies can be accommodated in the field quickly and without the added cost of
replacing a fan.
Quick Access Wiring
Wiring the Zephyr is quick and easy. Access to the motor
leads is through a panel in the side of the unit; there is no
need to remove the power pack. However, if the need to
remove the power pack ever arises, a quick connect plug
makes the process simple and easy.
Construction
Motors
All units have permanently lubricated motors manufactured
to PennBarry’s exacting specifications. Motors feature built in
overload protection and plug in disconnects.
Grilles
Infinite Speed Adjustment
Zephyr performance can be precisely adjusted with the use
of a Lek-Trol™ speed control. Mounted either on the unit or
remotely, Lek-Trols™ can be used to accommodate variable
ventilation needs.
Constructed of attractive molded white plastic, aerodynamically designed grilles feature an 85% free area. To make
for easy removal and cleaning, the grilles are held in place
with spring clips. An optional metal face grille with a white finish is available.
Wheels
Low Sound
For sound critical applications, the Zephyr S series delivers
the lowest sound ratings. All Zephyrs feature acoustically
insulated housings, custom designed blower and motor pairings, motors mounted on vibration isolators, and for all but
the smallest Zephyr–Z3H, dual inlet blowers.
6
PENNBARRY
Wheels are dynamically balanced and performance matched
with the motor. On models Z5H and larger dual inlet blowers
are employed to minimize sound levels.
Housings
Housings are fabricated of galvanized steel. Acoustical insulation is used to minimize sound.
Features & Benefits
Zephyr Conversion
Field Conversion
The Zephyr cabinet is designed for quick transition from right
angle discharge to top discharge or into an inline configuration. Simply remove two (or four depending upon model)
sheet metal screws, switch positions of the access panel and
top panel, re-attach screws, and a right angle discharge
becomes a top discharge fan.
There is no need to remove the power pack. The blower
remains oriented in one position while the panels change
places. The transformation to an inline fan is accomplished
by the replacement of the grille with an access panel. Again,
only two (or four) screws are involved in the process.
Changing From Right Angle To Top Discharge
Step 1A. Remove screws.
Step 1B. Remove access
panel.
Step 1C. Rotate access
panel 90º.
Step 1D. Reinstall screws.
Step 2C. Install optional
TDA panel and
four screws.
Step 2D. Reinstall access
panel and screws.
Changing From Ceiling Mount To Inline Configuration
Step 2A. Discard grille and
remove access
panel screws.
Step 2B. Remove access
panel.
For Ultra Quiet Installations
PennBarry Zephyr fans are quiet ceiling fans. However,
consideration must be given to the installation of the product
to assure full benefit of this Zephyr feature.
order to isolate the fan from the building structure the use of
vibration isolators is recommended. This prevents any building resonance from being transmitted to the fan housing.
Location is one such consideration. While Zephyr fans are
quiet enough to be placed directly over the listener, the
further the fan is located from the listener the quieter the fan
will seem.
The use of fiberglass ductboard generally results in the
lowest installed noise levels. When metal ductwork is used,
flexible duct connectors (by others) should be included
on the outlet and inlet (Inline models - TDA). In critical
applications an Inline Zephyr model TDA provides the lowest
possible sound level.
Frequently, other equipment such as pumps, air conditioners, etc. can transmit vibrations through building structure. In
PENNBARRY
7
Features & Benefits
Zephyr Installation
Hanger Support Rods
to Building Structure
(By Others)
Outlet Duct
(By Others)
Hanger Support Rods
to Building Structure
(By Others)
Zephyr Housing
Outlet Duct
(By Others)
Adjustable
Mounting Flanges
Zephyr
Housing
Zephyr Grille
Zephyr Grille
‘TD’ (Top Discharge)
Ceiling (By Others)
‘RA’ (Right Angle)
Adjustable Mounting
Flanges
Ceiling
(By Others)
Zephyr Typical Installation Arrangements
STANDARD
WITH GRILLE
Duct (By Others)
Duct (By Others)
Housing
Access
Panel
Housing
Access
Panel
Grille
Grille
‘TD’ (Top Discharge)
‘RA’ (Right Angle)
Duct
(By Others)
Duct
(By Others)
Housing
Housing
Duct (By Others)
Access
Panel
TDA Kit-Inlet Duct Sleeve
(Tabs slide under housing flanges
Fasten with s/m screws)
Duct
(By Others)
Flexible Duct Connection
Recommended with Metal
Duct Systems (By Others)
Access
Panel
TDA
‘TDA-RA’
(In-Line)
No Grille
with TDA Kit
‘TDA’
(In-Line)
TDA Kit
Inlet Sleeve
NOTE: Discharge options are easily obtained. Motor/Blower assembly
remains in place. Only position of inlet and Access Panel change.
Outlet Duct
Hanger Support Rods
(By Others)
to Building Structure
(By Others)
Hanger Support Rods to
Building Structure
(By Others)
TDA Kit-Inlet Duct Sleeve
(Tabs slide under housing flanges
Fasten with s/m screws)
Inlet Duct
(By Others)
Outlet Duct
(By Others)
Zephyr Housing
Adjustable
Mounting Flanges
Adjustable
Mounting Flanges
Zephyr Housing
‘TDA-RA’ (In-Line)
8
PENNBARRY
TDA Kit-Inlet Duct Sleeve
(Tabs slide under housing
flanges Fasten with s/m screws)
Inlet Duct
(By Others)
‘TDA’ (In-Line)
Accessories
Zephyr Fans
Accessories Matrix
Model
Flat
WCF06
WCF06
WCF06
WCF08
WCF08
WCF08
WCF10
WCF10
WCF12
WCF12
WCF14
WCF14
WCF20
WCF20
Z3H
Z5H
Z6S/H
Z8S/H
Z81S
Z10S/H
Z101S
Z102S
Z12S
Z121S
Z102H
Z12H
Z14
Z15
Roof Caps
Curb
Mnt.
WCC06
WCC06
WCC06
WCC08
WCC08
WCC08
WCC10
WCC10
WCC12
WCC12
WCC14
WCC14
WCC20
WCC20
Slope
Wall
Cap
Brick
Vent
SL20+
SL20+
SL20+
SL20+
SL20+
SL20+
WCF10†
WCF10†
WCF12†
WCF12†
WCF14†
WCF14†
CF
CF
WC10
WC10
WC10
WC10
WC10
SL20+
***
***
***
***
***
***
***
***
B68
B68
B68
B68
B68
B100
B120
B120
B120
B120
B120
B120
B120
B150
Switches
Speed
Time
Ctrl.
Delay
LT30
AM12
LT30
AM12
LT30**
AM12
LT30
AM12
LT30
AM12
LT50
AM12
LT30
AM12
LT50
AM12
LT50
AM12
LT40
AM12
LT40
AM12
LT40
AM12
LT40
AM12
LT35
--
Radiation‡
Damper
DDA3
DDA 3
DDA3
DDA8
DDA8
DDA10
DDA12
DDA12
DDA12
DDA12
DDA12
DDA12
---
Metal
Face
Grill
MFG6
MFG6
MFG6
MFG8
MFG8
MFG10
MFG12
MFG12
MFG12
MFG12
MFG12
MFG12
MFG14*
MFG15*
+ Manufactured of galvanized steel. All other accessories manufactured of aluminum.
* Specify MFG (perforated metal) or MCG (aluminum core).
‡ Kit is field installed, shipped separate from fan.
** Z6H unit only. ***Use brick vent. †4 in 12 max. pitch.
Brick Vents
MODELS B120, B150
FOR
MODEL
H
Z101, Z12,
Z121, Z102,
Z14
B120
24
Z15
B150
S
2
Sloped Roof Caps
Caps are available for sloped roof applications. Minimum
height model SL20 is durable and has an extra backdraft
damper. Models WCF/WCC10, 12, 14, 20 are suitable for
mounting on sloped roof 4" in 12" pitch or less.
30
61/2"
3
18 3/4" 10 /4"
101/4"
14 1/4"
MODEL SL20
Wall Caps
MODEL B68
FOR Z3, Z5, Z6
Z8, Z81
MODEL B100
FOR Z10
Sized to replace multiples of standard size brick or concrete
block. Made of extruded aluminum with insect screens,
stormproof features and a protective finish, they are superior
vents and ideal for installation in masonry walls.
Inconspicuous but efficient wall outlets for the Zephyr
fans are provided through the use of the Wall Cap.
Architectural values are not diminished by this tastefully
designed accessory and, when properly installed, it is both
watertight and effective.
Lek-Trol™ Speed Controller
Lek-Trol™ Speed Controllers permit unlimited air
control. They use solid state “quadrac” circuitry
and insure not only complete speed range control
and extra long life reliability but also a savings in
the cost of electricity. Lek-Trols™ can be installed
and connected within the fan casing, permitting
precise system balancing.
18 3/4"
103/4"
4"
MODEL SL20
MODEL WC10
See page 10 for pressure drop information.
PENNBARRY
9
Accessories
Zephyr Fans
Roof Caps
Ceiling Radiation Damper
These spun aluminum,
rustproof, seamless vents
provide a discharge cap
for flat roof mounting.
Unobtrusive and furnished
with integral bird screen,
they are designed for simple, safe flashing directly to
the roof. Mounting flanges
are also available turned
down as cap flashing when
installation on roof curbs is
desired. See the PennBarry
Weathercap Bulletin for
more information.
For Use With
Model
LDIA.
C
H
WCC
F
ADIA.
ESQ.
B
C
GRILLE
H
WCF
F
ADIA.
ESQ.
B
C
E SQ
F
H
L-Dia
Damper
SQ
7
N/A
3 1/2
16 7/8
8
11 1/2
12
NA
Z8S/H, Z81S,
Z10S/H
WCF08
9
N/A
5 1/2
21 1/4
8
13 1/2 18 1/2
NA
Z101S, Z102S
Z12S, Z121S
Z102H, Z12H
Z14, Z15
WCF10
WCF12
WCF14
WCF20
11
13
15
21
N/A
N/A
N/A
N/A
5 1/2 21 1/4
7
24
7
28
10 1/2
32
10
10
10
12
15 1/2
17
17
22 1/2
21
25
28
37
NA
NA
NA
NA
Z1, ZL1, ZL2,
ZT, ZJ1, Z3H,
Z5H, Z6S/H
WCC06
7
1
3 1/2
15
4
8 1/2
12
8 3/4
Z8S/H, Z81S,
Z10S/H
WCC08
9
1-1/2
5 1/2
18 1/2
4
11
18 1/2
11 1/4
Z101S, Z102S
Z12S, Z121S
Z102H, Z12H
Z14, Z15
WCC10
WCC12
WCC14
WCC20
11
13
15
21
1 1/2
2
2
2
5 1/2
7
7
10 1/2
18 1/2
4
20 1/2
4
24 3/4
4
28 1/2 5 1/2
11
13
13
18
21
25
28
37
11 1/4
15 3/4
15 3/4
19 3/4
Static Pressure Drop Chart For Accessories
B150
Air CFM thru the accessory
WCF/WCC14
B120
WCF/WCC12
WCF/WCC10
WCF/WCC08
B100
B68
SL20
WCF/WCC06
WC10
Pressure drop in inches water gauge
PENNBARRY
7"
LDIA.
ALL DIMENSIONS IN INCHES
10
FUSIBLE
LINK
SELFADJUSTING
SPRINGS
A(Throat)
Dia
Z1, ZL1, ZL2, ZT,
ZJ1, Z3H, Z5H, WCF06
Z6S/H
CEILING
RADIATION
DAMPER
CEILING
(BY OTHERS)
For areas where local codes require fire dampers for compliance with National Fire Protection Standard 90A, PennBarry
offers a UL approved damper. The dampers are rated for 3
hours and are activated at 165 degrees F. Compact in
design, the dampers add only 7" in height when mounted
between the fan and the grille. Static pressure created by the
damper is negligible.
Optional Metal Face Grille
For when the design calls for a
more architecturally appealing
grille, an optional metal face
grille (MFG) is available.
Attractive perforated metal
design with overall white finish.
(Not available for Z1, ZL1 & ZL2).
Inline Conversion (TDA) Kit
Adapter panel with integral duct flange allows conversion
from ceiling fan (RA/TD) to inline fan (TDA). Adapter can be
installed to provide for straight through (Inline) or 90º (Right
Angle Inline) application. Use of the fan in Right Angle
configuration allows the fan to replace an elbow in the duct
system. This eliminates the pressure loss of the elbow and
simplifies the installation for the contractor.
INLINE CONVERSION KIT
Z3, Z5, Z6
Z8, Z81
Z10
Z12, Z101, Z102, Z121
PART NO.
20722
20723
20724
20725
Accessories
Zephyr Fans
277 Volt Transformer
Vibration Hanger
To meet local requirements voltage
transformers are available for all
Zephyrs.
Hanger vibration eliminators feature rubber-in-shear type
and are available for use with all units.
1
2"
2 /4"
13/32"
HOLE
DIAMETER
Z3-Z12
3"
Pilot Light
This amber colored light
easily snaps into any
opening in the Zephyr
grille. The light will indicate
when the fan is in operation and is ideal when fan
is not interlocked with
lights.
HOUSING BRACKET
(SUPPLIED W/FAN)
7/8"
Z14-Z15
Temperature Sensing Two Speed Switch
Motion Sensor
For applications where automated operation
of the fan is required, a motion detector can
be used to turn the fan on or off. The sensor
features full scanning capabilities and can be
placed anywhere within the room. The sensor also offers adjustable shutoff feature with
delays of up to 15 minutes.
Square To Round Transition
Duct Transition
Part No.
Units
Round Dia.
ZT, ZJ1, Z3, Z5, Z6
56337-0
3 1/4 x 10
6
Z8, Z81, Z10
56340-0
6x8
8
Z12, Z101, Z102, Z121*
56385-0
6x8
8
* Includes two (2) pieces.
Designed to make the installation of
flex duct quick and easy. Available to
accommodate the most common flex
duct sizes.
Two Speed Switch
A PennBarry Exclusive. The decorator, three position center off, two
speed switch is designed to work
with PennBarry’s EasyTap Dual
Speed Motors (models Z6S/H,
Z8S/H & Z10S/H). Adjust from low
(S) to high (H) with the flick of a
switch. Manually adjust for
changes in room and static pressure conditions.
Yet another PennBarry Exclusive.
Designed to work with PennBarry’s
EasyTap Dual Speed Motors (models
Z6S/H, Z8S/H & Z10S/H), this switch is
optimized for areas in which temperature levels and room conditions vary. An
adjustable thermostat, mounted within
the housing, automatically switches the
fan from low (S) to high (H) speed.
Simply set the thermostat to the desired
temperature and the fan will adjust automatically to meet your needs. A great
alternative to the Two Speed Switch.
Time Delay Switch AM12
The Airminder Time Delay Switch is a
UL listed, inexpensive, single gang
toggle switch and time delay relay that
operates both the fan and room light.
Airminder AM12 uses 120 volt power
and ventilates the room even after the
occupants leave. SNAP ON: Light and
fan on immediately. SNAP OFF: Light
goes off immediately. Fan is set at factory to run for 4.5 minutes, to clear the air after the room is left vacant. However,
time interval is field adjustable to run from 0 to 10 minutes.
The Airminder can also be used with a separate light switch
or no light at all to provide the same features as described
above. PennBarry also makes a Combination Lek-Trol™
Airminder (2 gang box required) for variable speed and time
delay.
PENNBARRY
11
Dimensional Data
Zephyr Fans
RA/TD Zephyrs
TDA/TDA-RA Zephyrs
Housing
Model
Z3,5,6
Z8,81
Z10
Z12, 101,
102, 121
A
B
C
D
12 1/2 9 1/8
16
9 1/8
13 7/8 11 3/8 17 3/8 11 3/8
18
14 1/8 21 1/2 14 1/8
24
14 1/8 27 1/2 14 1/8
Outlet Duct
E
1 1/4
1 7/8
3 5/8
1
1
E
1 1/4
4
6 3/8
F
5 3/8
5 1/4
8
G
10
8
8
H
3 1/4
6
6
1
8
22
6
Grill
TDA Panel
J
K
L
3/4
11
13 3/4
3/4 13 1/4 14 7/8
3/4 15 1/2 19 3/8
X
10
10
14
Y
6
8
10
Z
1 5/8
1 9/16
2
3/4 15 1/2
20
10
2
25
Z3, Z5, Z6
EI
E
A
G
J
H
D
ALL DIMENSIONS IN INCHES
F
C
K
B
Z8, Z81
Z
E
Y
A
G
EI
J
H
D
L
F
X
C
B
Z10
Large Capacity Zephyrs
Model
A
Z14
38
Z15
B
C
D
L
E
O
Outlet
G
14 1/2 14 1/2 15 1/2 26 1/2 7 5/8 33 3/4
45 1/2 16 1/2 16 1/2 17 1/2 31 3/4
10
41 1/4
G
A
EI
J
H
Inlet
H
M
N
7 3/4
12 1/2
36
9 3/4
14 1/2
43 1/2
D
F
C
B
ALL DIMENSIONS IN INCHES
2 1/8"
2 1/8"
1"
Z101, Z102, Z12, Z121
EI
E
J
GA
H
D
F
1"
1"
C
12
PENNBARRY
B
Performance Data - RA/TD
Zephyrs Ceiling Mounted Models with Grills
• Adjustable Air Flow
• Low Sound Level
• Decorator Deluxe Grille is Standard
• Economical – Excellent Value
• Easy to Install and Maintain
4
Zephyr
Model No.
MAX.
WATT
Amps
RPM 1
Z3H
39
0.5
1550
Z5H
79
1
1550
Z 6S 5
47
0.6
1 05 0
5
108
1.4
1550
6
77
1
1050
Z81S
77
0.9
1050
130
1.6
1550
7
243
2.5
1050
Z101S
153
1.6
1050
Z10H7
390
3.6
1550
Z102S
269
4.5
1050
Z12S
260
2.9
1050
Z121S
370
3.6
1050
812
7.5
1550
851
7.9
1550
Z6H
Z8S
Z 8H
6
Z10S
Z102H
Z12H
(BHP 0.53)
(BHP 0.65)
0.000”
SP
CFM
2
SONES
CFM
2
SONES
CFM
2
SONES
CFM
SONES2
CFM
2
SONES
CFM
2
SONES
CFM
2
SONES
CFM
2
SONES
CFM
SONES2
CF M
SONES2
CF M
2
SONES
CFM
SONES2
CFM
2
SONES
CFM
2
SONES
CFM
2
SONES
109
1.7
192
2.5
123
0.9
230
3.3
272
2.1
310
2.5
426
4.5
469
4.5
612
3.9
728
8.6
816
5.8
901
5.8
1083
7
1435
11.8
1566
13.5
FAN CAPACITY - CUBIC FEET PER MINUTE
0.500”
0.375”
0.125”
0.250”
83
2.3
163
2.7
101
1.4
196
3
247
2.4
273
2.7
401
4.7
441
4.8
537
3.6
694
8.6
747
5.8
855
5.9
1062
6.9
1385
11.7
1511
13.3
128
2.8
82
1.8
166
3
231
2.9
239
2.9
377
4.7
423
5.1
467
3.9
664
8.6
691
5.4
812
6.3
1024
6.6
1338
11.9
1464
12.9
0.625”
0.750”
136
4.2
328
5.8
367
5.8
116
6
591
8.8
73
4.3
304
5.8
347
6
565
8.8
552
6
686
5.3
1203
11.3
1307
12
270
4.6
1163
11
1251
11.7
93
2.8
122
3.1
217
3.3
213
3.3
357
5.1
403
5.4
405
4.6
638
8.7
602
5
755
6 .5
949
6.1
1294
11.9
1417
12.7
199
3.6
182
3.7
341
5.6
387
5.6
222
5.5
613
8.6
335
4.9
683
6.5
838
5.7
1247
11.7
1364
12.3
1 Speed (RPM) shown is nominal. Performance is based on actual speed of
test.
4 Specify discharge configuration. Standard types are RA, TD, TDA and TDARA.
2 Performance shown is for installation type B - Free Inlet, Ducted Outlet.
Performance ratings include the effects of an inlet grille and backdraft
damper in the airstream.
The sound ratings shown are loudness values in fan sones at 5ft. (1.5m) in
a hemispherical free field calculated per AMCA Standard 301. Values
shown are for installation type B: free inlet fan sone levels.
5 Z6S and Z6H is the same unit shipped with EASYTAP dual speed motor.
Wired on S (low) speed.
6 Z8S and Z8H is the same unit shipped with EASYTAP dual speed motor.
Wired on S (low) speed.
7 Z10S and Z10H is the same unit shipped with EASYTAP dual speed motor.
Wired on S (low) speed.
PENNBARRY
13
TDA/TDA-RA - Performance Data
Zephyr Inline Fans
• Extensive Capacity Range
• Ultra Quiet Operation
• Quality Construction Throughout
• Adjustable Air Flow
Zephyr 4
Model
14
MAX.
WATT
Amps
RPM 1
Z3H
(TDA)
42
0.5
1550
Z5H
(TDA)
Z6S
(TDA)5
Z6H
(TDA)5
Z8S
(TDA)6
Z81S
(TDA)
Z8H
(TDA)6
Z10S
(TDA)7
Z101S
(TDA)
Z10H
(TDA)7
Z102S
(TDA)
83
1
1550
46
0.6
1050
108
1.4
1550
75
1
1050
84
0.9
1050
132
1.6
1550
234
2.5
1050
152
1.6
1050
372
3.6
1550
273
4.5
1050
Z12S
(TDA)
263
2.9
1050
Z121S
(TDA)
344
3.6
1050
810
7.5
1550
812
7.9
1550
Z102H
(TDA)
(BHP 0.53)
Z12H
(TDA)
(BHP 0.53)
FAN CAPACITY - CUBIC FEET PER MINUTE
SP
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
CFM
SONES3
0.000”
0.125”
0.250”
0.375”
107
1. 7
199
1.9
127
0.9
227
2.7
255
1.8
307
2.2
402
4.1
456
4.1
609
3.2
700
8
780
4.6
886
5.5
1089
6.5
1397
10.7
1519
12.7
81
1.9
171
2
93
1.2
192
2.7
228
1.9
274
2.2
376
3. 9
423
4.5
521
3.4
661
8
720
5.7
829
5.7
1043
6. 5
1348
10.5
1475
12.4
143
2.1
66
1.6
157
2.8
208
2.4
252
2.5
350
3.9
391
4.7
438
4.3
626
7.9
660
5.6
786
5.6
981
6.3
1301
10.7
1430
12.2
104
2.1
113
2.9
190
2.8
228
2.9
335
4.2
367
4.9
373
4.6
593
7.9
592
4.8
735
5.8
899
6
1253
10.6
1386
11.7
0.500”
0.625”
0.750”
1.000”
1.250”
165
3.3
198
3.1
318
4.4
350
5.2
272
5.2
558
8
336
4.7
660
5.7
802
5.7
1206
10.4
1343
11.5
139
3.6
152
3.3
301
4.6
337
5.4
130
5.6
528
8.2
110
3.7
95
3.5
277
4.9
320
5.7
268
6.2
128
6.4
504
8.1
455
8
368
7.8
526
5.3
672
5.3
1162
10.1
1300
11.2
180
4.7
404
4.4
1121
9.9
1254
10.9
1034
9.6
1146
10.5
916
9.4
1017
10.2
1.500”
611
9
697
9.6
1 Speed (RPM) shown is nominal. Performance is based on actual speed of
test.
4 Specify discharge configuration. Standard types are RA, TD, TDA and TDARA.
3 Performance shown is for installation type D - Ducted inlet, Ducted outlet.
Performance ratings do not include the effects of appurtenances in the
airstream.
The sound ratings shown are loudness values in fan sones at 5ft. (1.5m)
from the test inlet duct in a hemispherical free field calculated per AMCA
Standard 301. Values shown are for installations Type D: ducted inlet ducted outlet. Ratings do not include the effect of duct end correction.
5 Z6S and Z6H is the same unit shipped with EASYTAP dual speed motor.
Wired on S (low) speed.
PENNBARRY
6 Z8S and Z8H is the same unit shipped with EASYTAP dual speed motor.
Wired on S (low) speed.
7 Z10S and Z10H is the same unit shipped with EASYTAP dual speed motor.
Wired on S (low) speed.
Performance Data
Large Capacity Zephyr Fans
• Quiet Design with Insulated Housing
• Performance Range to 3290 CFM
• Versatile Discharge Directions
• Install Easily in Confined Spaces
• Optional Grille Available
• Easy Access Panel
Model
No.
Z14
115/1/60
1/2 HP
Z15
230/1/60
1 HP
RPM
Inlet
Area
Outlet
Area
Wheel Size
Circum.
Dia.
1150
0.5
1550
8"
2.09'
1060
1
1550
8"
2.09'
980
0.6
1050
8"
2.09'
880
1.4
1550
8"
2.09'
1030
0.9
1050
9"
2.36'
1000
1.6
1550
9"
2.36'
950
2.5
1050
9"
2.36'
880
1.6
1050
9"
2.36'
SP
0.100”
FAN CAPACITY - CUBIC FEET PER MINUTE
0.125”
0.250”
0.375”
0.500”
0.625”
0.750”
CFM
SONES
BHP
CFM
SONES
BHP
CFM
SONES
BHP
CFM
SONES
BHP
CFM
SONES
BHP
CFM
SONES
BHP
CF M
SONES
BHP
CFM
SONES
BHP
220 0
7.9
0.56
2025
7.2
0.44
1865
6 .6
0.34
1660
5.8
0.25
3290
9.5
1.1
3185
9.4
1
3015
8.8
0.86
2775
8
0.68
2195
7.9
0.56
2015
7.2
0.43
1845
6.6
0.34
1605
5.8
0.24
3260
9.5
1.1
31 5 5
9.4
1
2980
8.8
0.85
2735
7.9
4.6
2050
7.6
0.54
1835
6.9
0.4
1630
6.2
0.31
1375
5.4
0.21
3100
9.4
1.05
2990
9.2
0.95
2805
8.6
0.81
2535
7.8
0.63
1870
7.1
0.49
1645
6.4
0.36
1410
5.8
0.28
1055
4.8
0.17
2920
9
1
2800
8.7
0.91
2600
8.2
0.77
2305
7.4
0.59
1685
6.8
0.45
1400
6.3
0.33
1015
5.7
0.2
255
4.6
0.07
2720
8.7
0.96
2590
8.4
0.86
2375
7.8
0.72
2045
7.1
0.54
0.875”
1425
6.7
0.39
880
6
0.22
280
5.3
0.1
880
6.6
0.26
285
6.4
0.15
2510
8.6
0.91
2365
8.3
0.81
2115
7.6
0.66
1715
6.9
0.46
2260
8.3
0.85
2085
8
0.73
1755
7.4
0.56
1930
8.2
0.75
1625
7.7
0.61
1.00”
1140
8.1
0.52
Speed (RPM) shown is nominal. Performance is based on actual speed of test. Other speeds listed are obtainable by using Lek-Trol™ model LT40 for fan
model Z14 and Lek-Trol™ LT35 for fan model Z15. Sone ratings are in accordance with AMCA Bulletin 301-90. Performances shown is for installation type
B - Free inlet, Ducted outlet. The AMCA Certified Ratings Seal applies to air capacities only. Performance ratings do not include the effects of appurtenances
in the airstream. See pages 9 through 11 for accessories.
PENNBARRY
15
Fan Curves
Zephyr Fans
All Zephyr fan curves are based on laboratory tests conducted in accordance with AMCA standards. The curves shown
below summarize the sizes and speeds of units available.
TDA Models
0.600
0.550
0.550
0.500
Z3H - Z6H
0.450
0.400
0.350
0.300
Z6
S
0.250
Z3H
0.200
Z6
S
0.250
Z3H
0.200
0.150
H
40
0
80
160
120
CFM
MAXIMUM WATTS FOR:
MODEL Z3H – 39
MODEL Z5H – 79
200
0.100
0.000
240
1.625
1.625
1.500
1.500
Z8S - Z10H
Z1
0S
1.125
Z8H
1.000
S
Z8
Z8
0.875
1S
0.750
0.625
0.500
0.375
1.375
500
600
0.625
0.500
0.375
0.250
0
750
100
200
300
MODEL Z8H – 130
MODEL Z10S – 108
600
750
MODEL Z8H – 132
MODEL Z10S – 234
2.000
1.750
1.750
Z101S - Z12H
1.250
1.000
H
02
0.000
S
0.500
Z1
0.250
S
2H
01
21
Z1
21
2S
02
Z1
0.750
Z1
Z1
2S
Z1
0.250
Z1
1.000
Z1
0.500
1.250
Z1
2H
Z1 2H
0
Z1
0.750
Z101S - Z12H
1.500
STATIC PRESSURE IN INCHES W.G.
1.500
02
S
S
Z1
01
S
S
0.000
0
200
400
600
800
1000
1200
1400
1600
0
200
400
CFM
MAXIMUM WATTS FOR:
MODEL Z101S – 153
MODEL Z102S – 269
MODEL Z12S – 260
PENNBARRY
500
MODEL Z10H – 372
MODEL Z10H – 390
16
400
CFM
MAXIMUM WATTS FOR:
MODEL Z8S – 75
MODEL Z81S – 84
2.000
STATIC PRESSURE IN INCHES W.G.
0S
Z8S
400
CFM
Z8S - Z10H
0.750
0.125
300
240
Z8H
0.875
0.000
200
Z1
1.000
0.125
100
Z10H
1.125
200
MODEL Z6S – 46
MODEL Z6H – 108
1.250
0.000
0
160
120
CFM
1S
0.250
MAXIMUM WATTS FOR:
MODEL Z8S – 77
MODEL Z81S – 77
80
Z8
STATIC PRESSURE IN INCHES W.G.
Z10H
1.250
40
0
MAXIMUM WATTS FOR:
MODEL Z3H – 42
MODEL Z5H – 83
MODEL Z6S – 47
MODEL Z6H – 108
1.375
STATIC PRESSURE IN INCHES W.G.
0.350
0.300
0.050
0.050
0.000
0.400
Z5
H
0.100
Z3H - Z6H
H
Z5
H
0.150
0.500
0.450
Z6
STATIC PRESSURE IN INCHES W.G.
0.600
Z6
STATIC PRESSURE IN INCHES W.G.
RA Models
600
800
1000
1200
1400
CFM
MODEL Z121S – 370
MODEL Z102H – 812
MODEL Z12H – 851
MAXIMUM WATTS FOR:
MODEL Z101S – 152
MODEL Z102S – 273
MODEL Z121S – 344
MODEL Z102H – 810
MODEL Z12S – 263
MODEL Z12H – 855
1600
Sound Data Notes
Zephyr Fans
Since any mechanical power generates some sound energy
into the air, fans will create some noise. Because of the great
number of factors influencing sound output, it is invalid to
compare fans based on RPM, tip speed or outlet velocity.
The only accurate basis of comparison is the sound power
level generated by the fan at the required point of operation.
System designers use many methods to predict acoustic
acceptability of an occupied space. The A-weighted sound
pressure level provides a single number that corresponds
well to the human judgement of relative loudness. OSHA
bases requirements regarding exposure to noise on Aweighted sound pressure levels. The disadvantage of this
method is that A-weighted sound pressure levels do not provide information as to the quality of the sound. Noise Criteria
(NC) curves are also widely used. To determine the NC level,
the sound power spectrum is compared to defined limits.
Other methods include RC curves, sones, SIL and Noise
Rating Curves.
Each method relies on sound pressure level information
because the human ear “hears” sound pressure fluctuations,
not sound power (Watts). Sound pressure is a function of the
attenuation of the space and the distance from the source.
Consider a 100 watt light bulb. It provides adequate light for
a closet, but not a classroom. And in a stadium it would be
imperceptible. While the light source was the same power
(100 watts), the brightness level changed dramatically.
Similarly, the same sound power level (acoustical energy)
produces greatly different sound pressure levels (noise).
In addition to sound power levels, PennBarry has provided
sone ratings to allow designers to make an educated judgement as to the noise level a fan will develop in a space. Sone
ratings are a loudness index developed from sound power
level data. The calculation is at 5' from the fan inlet and in
front of a reflecting plane (hard wall). Sones are weighted
similarly to the A-weighing scale in that more weight is given
to frequencies that people hear “well” and less weight to frequencies that people do not hear “well”. Another feature of
the sone scale is that it is linear rather than logarithmic. This
means that 40 sones is 33% louder than 30 sones, as
opposed to 40 dB being twice as loud as 30 dB.
Sound power levels shown in this catalog were measured
and certified using AMCA Standard 300 Reverberant Room
Method for Sound Testing of Fans. The values shown are for
the eight octave bands defined in this standard, which agree
with ANSI 61.11-1986. One-third octave band sound power
levels are available upon request. The sound power levels
shown are rated in decibels (dB) using 10-12 Watts as a reference. The sone values shown in this catalog are based on
the sound power levels determined above, and calculated in
accordance with AMCA Standard 301 “Methods for
Calculating Fan Sound Ratings from Laboratory Test Data”.
Since any mechanical power generates some sound energy
into the air, fans will create some noise. Because of the great
number of factors influencing sound output, it is invalid to
compare fans based on RPM, tip speed or outlet velocity.
The only accurate basis of comparison is the sound power
level generated by the fan at the required point of operation.
Having sound power levels for a specific fan at a specific
operating point allows the system designer to determine the
theoretical sound pressure level at any point in the occupied
space. AMCA Publication 303 and the ASHRAE Guides provide more information on this process. Another use of sound
power levels is to compare similar fans. Generally differences of 6 dB in the 63 Hz band and 4 dB in all other bands
are considered insignificant. Sound power levels shown in
this catalog were measured and licensed using AMCA
Standard 300 Reverberant Room Method for Sound Testing
of Fans. Values shown are for the eight octave bands defined
in this standard, which agree with ANSI 61.11-1986. Onethird octave band sound power levels are available upon
request. The sound power levels shown are rated in decibels
(dB) using 10-12 Watts as a reference. Sone values shown
in this catalog are based on sound power levels determined
above, and calculated in accordance with AMCA Standard
301 “Methods for Calculating Fan Sound Ratings from
Laboratory Test Data”.
Since the sone rating is determined from well defined
assumptions and is linear in nature, it is ideal for comparing
different fans moving air at the same CFM and SP. When
using sones for this purpose, differences of 3 sones are considered negligible. The suggested loudness level chart below
is a practical guideline for acceptable installed performance.
PENNBARRY
17
Engineering Notes
Zephyr Fans
The following section includes engineering and technical
data, guidelines and system explanations related to air moving and control devices. Fan laws and system descriptions
are consistent with industry standards, definitions and
accepted practices. They are provided to assist system
designers in sizing, selecting and defining their air moving
and control systems as well as explaining variables inherent
in system design.
Handbook of Fundamentals and SMACNA Duct Design
Manual.
The 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:
Flow And Static Pressure
PRESSUREC / PRESSURE = (QC / Q)2
For any change in static pressure (SP), a squared relationship
is applied to the flow ratio. This is expressed by the formula:
P2
P1
(
=
CFM 2
CFM 1
)
2
P 2 is the desired static pressure,
CFM 1 is the original flow rate in cu. ft. per minute, and
CFM 2 is the desired flow rate in cu. ft. per minute.
This formula is based upon performance of a fan at one point
on a system. This data can be used to calculate a fan performance curve indicative of all five points from 0" SP (maximum flow) to maximum SP (0 flow).
CFM
=
RPM2
P2
RPM
P
1
CFM2
CFM1
=
1
=
1
RPM2
P2
RPM1
P1
=
(
(
CFM2
CFM
1
RPM2
RPM1
)
)
2
HP2
HP
2
=
1
HP2
HP1
=
(
(
CFM2
CFM
1
RPM2
RPM1
)
)
3
3
NOTE: Direct drive fans can change speed only through the use of a speed
controller and cannot increase speed beyond catalog maximum. Fans must
operate on single phase in order to change speed.
Air Systems
An air system may consist simply of fan with ducting connected to either the inlet or discharge or to both. A more complicated system may include a fan, ductwork, air control
dampers, cooling coils, heating coils, filters, diffusers, noise
attenuators, 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.
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
18
PENNBARRY
C
= change
Interaction Of System And Fan Performance Curve
Where P 1is the original static pressure,
CFM2
Q = CFM
If the system characteristic curve, composed of the resistance to flow of the system and the appropriate System
Effect Factors have been accurately determined, then the fan
selected will develop the equivalent and necessary pressure
to meet the system requirements; i.e. the fan will deliver the
designated flow rate when installed in the system.
The point of intersection of the system curve and the fan performance curve determines the 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 1. The normalized
Duct System A from Figure 1 has been plotted with a normalized fan performance curve.
The volume flow
rate through the
system in a given
installation may be
varied by changing
the system resistance. This is usually accomplished by
using fan dampers,
duct dampers, mixing boxes, terminal
units, etc. Figure 1 shows the volume flow rate may be varied from 100% design Q (Point 1, Duct System A), to approximately 80% of the design q by increasing the resistance to
flow, thus changing the system curve characteristics to Duct
System B. This results in fan operation at Point 2 (the intersection of the fan curve and the new Duct System B).
Similarly, the volume flow rate can be increased to approximately 120% of the design Q by decreasing the resistance to
flow, thus changing the system curve characteristic to Duct
System C. This results in fan operation at Point 3 (the intersection of the fan curve and the new Duct System C).
Figure 1
Engineering Notes
Zephyr Fans
Effect Of Changes In Speed
D = diameter
c = change
Increases or decreases in fan speed will alter the volume
flow rate through a system. Figure 2 illustrates the increase
in flow rate when the fan speed increases 10% to Point 2.
The 10% increase in flow rate, however, extracts a severe
power penalty. According to the fan laws (see below), the
power increase is 33%. This fact is often startling to the system designer who finds a flow deficiency. Only 10% more air
is needed but the connected motor horsepower is not capable of a 33% increase in load. (Note that the increased power
requirements are the result of increased work done).
HP = horsepower
t = total
The greater air volume flow rate moved by the fan against the
resulting higher system resistance to the flow is a measure of
the increased work done. In the same system, the power
increases as the cube of the speed ratio; the fan efficiency
remains the same at all points on the same system curve.
Figure 2
Q = CFM
s = static
P = static pressure
v = velocity
p = density
NOTE: Direct drive fans can change speed only through the use of a speed
controller and cannot increase speed beyond catalog maximum. Fans must
operate on single phase in order to change speed.
Effect Of Density On System Resistance
The resistance of a duct system is dependent upon the density of the gas flowing through the system. A gas density of
0.075 lb/ft3 is standard in the fan industry. Figure 3 illustrates
the effect on the fan performance of a density variation from
the standard value.
The pressure and horsepower vary directly as the ratio of the
gas density at the fan inlet to standard density. This density
ratio must always be considered when selecting fans from
manufacturers’ catalogs or curves.
Effect Of Change on Density
(Fan Size and Speed Remaining Constant)
When the speed of the fan does not change, RPMc = RPM
and, therefore (RPMc / RPM) = 1. The fan size is also fixed,
Dc = D and therefore (Dc / D) = 1.
Qc = Q
Ptc = Pt (pc / p)
HP = HP (pc / p)
Effect Of Change In Speed
(Fan Size and Gas Density Remaining Constant)
For the same size fan, Dc = D and, therefore, (Dc / D) = 1.
When the density does not vary, pc = p and the density
(pc / p) = 1.
Psc = Ps (pc / p)
Pvc = Pv (pc / p)
D = diameter
c = change
HP = horsepower
t = total
Q = CFM
P = static pressure
Qc = Q (RPMc / RPM)
Pvc = Pv (RPMc / RPM)2
Ptc = Pt (RPMc / RPM)2
HPc = HPc (RPMc / RPM)3
Psc = Ps (RPMc / RPM)2
s = static
v = velocity
p = density
See Table 1, which provides air density adjustment factors,
so fans can be selected to account for non-standard density.
NOTE: PennBarry’s Fansizer software can make density corrections for you.
Table 1. Unity Basis = Standard Air Density of .075 lb/ft3
At sea level (29.92 in. Hg barometric pressure) this is equivalent to dry air at 70° F.
Air
Temp.
ºF
70
100
Altitude in Feet Above Sea Level
0
1000
2000
3000
4000
29.92
1
0.946
28.86
0.964
0.912
27.82
0.93
0.88
26.82
0.896
..848
25.84
0.864
0.818
6000
7000
8000
5000
Barometric Pressure in Inches of Mercury
24.9
0.832
0.787
23.98
23.09
0.801
0.772
0.758
0.73
Air Density Ratios
22.22
0.743
0.703
9000
10000
15000
20000
21.39
0.714
0.676
20.58
0.688
0.651
16.89
0.564
0.534
13.75
0.46
0.435
Reprinted from AMCA Publication 201, Fans and Systems, with the express written permission from the Air Movement and Control Association, Inc.
PENNBARRY
19
Engineering Data
Zephyr Fans
Figure 3
System Effect
Figure 5 illustrates deficient fan/system performance
resulting from one or more undesirable flow conditions. It
is assumed that the system pressure losses, shown in
system curve A, have been accurately determined, and a
suitable fan selected for operation at Point 1. However, no
allowance has been made for the effect of the system
connections on the fan’s performance. To compensate for
this System Effect it will be necessary to add a System
Effect Factor (SEF) to the calculated system pressure
losses to determine the actual system curve. The SEF for
any given configuration is velocity dependent and will,
therefore, vary across the range of flow volumes for the
fan.
Effects Of Errors In Estimating
System Resistance
Higher System Resistance. Actual Duct System B in
Figure 4 shows a situation where an actual system has
more resistance to flow than was calculated. This condition
is generally the result of an inaccurate estimate of system
resistance to flow. All losses must be considered when
calculating system pressure losses or the final system will
be more restrictive than designed; the actual flow rate will
be less than expected, (Point 2). If the actual duct system
pressure loss is greater than design, an increase in fan
speed may be necessary to achieve Point 5, the design
volume flow rate.
In Figure 5 the point of intersection between the fan
performance curve and the actual system curve B is Point
4. The actual flow volume will, therefore, be deficient by
the difference from 1-4. To achieve design flow volume a
SEF equal to the pressure difference between Point 1 and
2 should have been added to the calculated system
pressure losses and the fan selected to operate at Point 2.
Note that because the System Effect is velocity related,
the difference represented between Points 1 and 2 is
greater than the difference between Points 3 and 4.
Figure 5
NOTE: Direct drive fans can only change speed through the use of a speed
controller and can not increase speed beyond catalog maximum. Fans must
operate on single phase in order to change speed.
Figure 4
The SEF includes only the effect of the system
configuration on the fan’s performance.
System Effect Factor
A System Effect Factor is a pressure loss which
recognizes the effect of fan inlet restrictions, fan outlet
restrictions, or other conditions influencing fan
performance when installed in the system.
Lower System Resistance
Actual duct system C in Figure 4 shows a situation where
a system has less resistance to flow than was expected;
the actual flow rate will be more than expected, (Point 3)
unless changed by the use of a speed controller.
20
PENNBARRY
Engineering Data
Zephyr Fans
Outlet System Effect Factors
Inlet Duct Elbows
Non-uniform flow into a fan inlet is the most common cause
of deficient fan performance. An elbow located at, or in close
proximity to the fan inlet will not allow the air to enter the
impeller uniformly. The result is less than cataloged air performance.
Figure 6
To calculate 100% effective length, assume a minimum of 2 1/2 duct
diameters for 2500 FPM or less. Add 1 duct diameter for each additional 100
FPM.
Example: 500 FPM = 5 equivalent duct diameters. If the duct is rectangular
with side dimensions a and b, the equivalent duct diameter is equal to
(4ab/š)0.5.
Controlled diffusion and establishment of a uniform velocity profile in a
straight length of outlet duct.
Figure 7
Fan Outlet Velocity Profile
Outlet Duct Elbows
Centrifugal Fans Outlet Duct Elbows. The outlet velocity of
centrifugal fans is generally higher toward one or adjacent
sides of the rectangular duct (See Figure 6). If an elbow must
be located near the fan outlet it should have a minimum
radius to duct diameter ratio of 1.5, and should be arranged
to give the most uniform airflow possible. Refer to Figure 7.
PennBarry Zephyr flexibility eliminates the need for many
outlet elbows. See “Typical Applications”.
Turning Vanes. Turning vanes will usually reduce the pressure loss through an elbow. However, where a non-uniform
approach velocity profile exists, such as at a fan outlet, the
vanes may actually serve to continue the non-uniform profile
beyond the elbow. This may result in increased losses in
other system components downstream of the elbow.
Reprinted from AMCA Publication 201, Fans and Systems, with the express written permission from the Air Movement and Control Association, Inc.
PENNBARRY
21
Suggested Specifications
Zephyr Fans
CEILING AND CABINET FANS shall be PennBarry Zephyrs manufactured by PennBarry, Richardson, Texas 75081. Fans
shall have acoustically insulated galvanized steel housings and shall not exceed sound level ratings shown. Fans shall bear
the AMCA Certified Ratings Seal and UL label. Integral backdraft damper (except Z14 and Z15) shall be chatter proof.
Fans shall have true centrifugal wheel or wheels. Face grille shall be of aerodynamic white egg crate design and provide
85% free area.
Fans shall be provided with cord, plug, and receptacle inside the housing. Entire fan, motor and wheel assembly shall be
removable. Fans shall be direct driven and motor speed shall not exceed RPM of specified models. Fan motors shall be
suitably grounded and mounted on vibration isolators.
RA/TD Zephyrs Ceiling Mounted
Models with Grills
Inline Model
Large Capacity Zephyr
22
PENNBARRY
One Year Limited Warranty
Zephyr Fans
What Products Are Covered
PennBarry Fans and Ventilators (each, a “PennBarry Product”)
One Year Limited Warranty For PennBarry Products
PennBarry warrants to the original commercial purchaser that the PennBarry Products will be free from defects in material
and workmanship for a period of one (1) year from the date of shipment.
Exclusive Remedy
PennBarry will, at its option, repair or replace (without removal or installation) the affected components of any defective
PennBarry Product; repair or replace (without removal or installation) the entire defective PennBarry Product; or refund the
invoice price of the PennBarry Product. In all cases, a reasonable time period must be allowed for warranty repairs to be
completed.
What You Must Do
In order to make a claim under these warranties:
1. You must be the original commercial purchaser of the PennBarry Product.
2. You must promptly notify us, within the warranty period, of any defect and provide us with any substantiation that we
may reasonably request.
3. The PennBarry Product must have been installed and maintained in accordance with good industry practice and any
specific PennBarry recommendations.
Exclusions
These warranties do not cover defects caused by:
1. Improper design or operation of the system into which the PennBarry Product is incorporated.
2. Improper installation.
3. Accident, abuse or misuse.
4. Unreasonable use (including any use for non-commercial purposes, failure to provide reasonable and necessary
maintenance as specified by PennBarry, misapplication and operation in excess of stated performance characteristics).
5. Components not manufactured by PennBarry.
Limitations
1. In all cases, PennBarry reserves the right to fully satisfy its obligations under the Limited Warranties by refunding the
invoice price of the defective PennBarry Product (or, if the PennBarry Product has been discontinued, of the most
nearly comparable current product).
2. PennBarry reserves the right to furnish a substitute or replacement component or product in the event a PennBarry
Product or any component of the product is discontinued or otherwise unavailable.
3. PennBarry's only obligation with respect to components not manufactured by PennBarry shall be to pass through the
warranty made by the manufacturer of the defective component.
General
The foregoing warranties are exclusive and in lieu of all other warranties except that of title, whether written, oral
or implied, in fact or in law (including any warranty of merchantability or fitness for a particular purpose).
PennBarry hereby disclaims any liability for special, punitive, indirect, incidental or consequential damages,
including without limitation lost profits or revenues, loss of use of equipment, cost of capital, cost of substitute
products, facilities or services, downtime, shutdown or slowdown costs.
The remedies of the original commercial purchaser set forth herein are exclusive and the liability of PennBarry with respect
to the PennBarry Products, whether in contract, tort, warranty, strict liability or other legal theory shall not exceed the
invoice price charged by PennBarry to its customer for the affected PennBarry Product at the time the claim is made.
Inquiries regarding these warranties should be sent to: PennBarry, 1401 North Plano Road, Richardson, TX 75081
PENNBARRY
23
OTHER PENNBARRY PRODUCTS
CENTRIFUGAL PRODUCTS
Domex
Fumex Fatrap
Zephyr
Dynamo
Centrifugal
Roof Exhausters
Kitchen Hood Centrifugal
Roof Exhausters
Ceiling and Inline Fans
Centrifugal Blowers
Centrex Inliner
LC Dynafan
ESI
Fume Exhaust
Centrifugal Inline Fans
Low Contour Centrifugal
Roof Exhausters
Efficient Silent
Inline Fan
Curb Mounted
Centrifugal Fans
AXIAL / GRAVITY PRODUCTS
Breezeway
HI-EX
Tubeaxial
Vaneaxial
Propeller Wall Fans
Power Roof Ventilator
Inline Fans
Inline Fans
Powered Airette
Airette
Domex Axial
Axcentrix
Axial Roof Ventilators
Gravity Intake/Relief Hood
Axial Roof Ventilators
Bifurcator Fan
For more information contact your local PennBarry Sales
Manufacturer Representative or visit us at www.PennBarry.com
©2005 PennBarry™
All Rights Reserved.
February 2005
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