PennBarry Fumex User manual

Upblast Roof Exhausters
FUMEX
PennBarry | Your Single Source for Commercial & Industrial Supply & Exhaust Fans | www.pennbarry.com
PRODUCT GUIDE

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TABLE OF CONTENTS
INTRODUCTION 3
CERTIFICATIONS & LISTINGS 4
FEATURES & BENEFITS 5-6
OPTIONS & ACCESSORIES 7-12
MOTOR AVAILABILITY 13-14
DIRECT DRIVE | DIMENSIONS 15
BELT DRIVE | DIMENSIONS 16
FAN SELECTIONS 17-18

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Fumex Series of Centrifugal Fans
Fumex centrifugal fans are designed for medium to high pressure applications and are available in a range of capacities. They can be
either roof or wall mounted. While suitable for general ventilation, Fumex fans are specically designed to discharge contaminated or
grease-laden air or fumes up and away from building surfaces. The optional “Fatrap” (UL762) restaurant grease exhaust conguration
(see Fatrap Conguration) makes Fumex fans particularly suited for all food service applications and chemical fume hoods. The optional
heat and smoke removal conguration (see Smoke Removal) makes Fumex fans especially prepared for heat and smoke control systems.
The optional high wind construction makes Fumex fans well-tted for high wind hurricane zones.
Fumex fans feature a weather-resistant, seamless spun aluminum housing which provides ample drainage and works in conjunction
with a patented wheel design and deeply spun inlets to provide smooth quiet airow through the ventilator. The centrifugal wheels are
aluminum, non-overloading, backward inclined, robotically welded, and dynamically balanced.
INTRODUCTION
Direct Drive Units
Model: FX (V/S/R/Q/Q1/Q2)
• Static pressure up to 1.5” wg.
• Flow capacity up to 4,489 CFM.
• Fatrap (FT) option available on sizes 13, 16, and 18.
• High Wind Construction (-HW) option available.
High Pressure Belt Drive Units
Model: FX (BH)
• Static pressure up to 3.0” wg.
• Flow capacity up to 8,623 CFM.
• Fatrap (FT) option available.
• Heat & Smoke Removal (-HS) option available.
• High Wind Construction (-HW) option available.
Standard Duty Belt Drive Units
Model: FX (B)
• Static pressure up to 2.5” wg.
• Flow capacity up to 21,511 CFM.
• Fatrap (FT) option available.
• Heat & Smoke Removal (-HS) option available.
• High Wind Construction (-HW) option available.
Centrex Direct Drive

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CERTIFICATIONS & LISTINGS
AMCA Certications
PennBarry certies that the Fumex direct drive and belt drive models FX, FXBH, and FXBHFT shown herein are licensed
to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and Publication 311 and comply with the requirements of the AMCA Certied Ratings Program. FX27B
is not AMCA Certied.
cULus Certication
Fumex fans carry the UL label, UL705 (ZACT/ ZACT7), le #E28413. Fumex fans with the “Fatrap” option carry the UL
label, UL762 (YZHW/ YZHW7), le #MH10684. Fumex fans with the heat and smoke removal option carry the UL label,
UL793 (ZAXH/ZAXH7), le #MH19473
High Velocity Hurricane Zone (HVHZ)
Miami-Dade NOA # 17-0112.06
Florida Product Approval #21559

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Motor Selection
Both direct drive and belt drive models are available with a wide range of voltages and enclosures (see Motor Selection for a complete
listing). Standard belt drive Open Drip Proof (ODP) ball bearing motors are selected using a conservative portion of the NEMA service
factor. Standard direct drive ODP motors have Class B insulation and internal overload protection. Overload protection is available as an
option on belt drive models. Each size is carefully engineered to match the motor to the wheel capacity.
Sound Performance
Fumex units deliver outstanding air performance with minimal noise and have the lowest AMCA licensed sound performance in the
industry.
Curb Caps (Base)
Curb caps for direct drive and standard duty belt drive models are available in galvanized steel (standard) or aluminum (optional). Curb
caps for high capacity belt drive models are available only in aluminum. All curb caps have fully welded corners and are pre-punched to
ensure a leak-tight and easy installation.
Forced Motor Cooling
Motors and drive components are located out of the airstream in a separate compartment. A cooling tube between the motor dome and
discharge apron enables fresh air to be drawn into the motor housing during fan operation. This positive cooling promotes longer life
for motor and drive components.
Easy Maintenance Access
By removing the fasteners, the motor dome lifts o for complete access to all the drive components.
Vibration Isolators
Multidirectional, rubber-in-shear vibration isolators mitigate residual vibration transmission from the unit to the building.
Structural Integrity
Durable housings of spun aluminum have a high strength-to-weight ratio and incorporate a rolled bead for additional strength. There
are no welds to break or seams to leak. The heavy-gauge motor mounting platform provides positive rigidity between all components
of the power train assembly.
Internal Bracing
Tri-Strut™ supports transfer the weight of the motor mounting platform directly to the curb mounting surface. The aluminum spun
housing, therefore, is not used to support any weight. For grease laden applications, there is less surface for grease build-up during
normal operation.
Solid Steel Shafts
Sized so the rst critical speed is a minimum of 130% of maximum cataloged operating speed, shafts are precision ground and polished.
Self-Aligning Bearings
Heavy-duty bearings are sized for a minimum L50 life in excess of 200,000 hours of operation. One hundred percent factory tested, they
are designed for air handling applications.
Drives and Belts
Pulleys are pre-set to the specied RPM. Cast iron variable pitch pulleys are adjustable, allowing for eld balancing based on actual eld
conditions. All pulleys are sized for at least 150% of the driven horsepower.
Conduit
Both direct and belt drive units include a large 1” nominal conduit chase (not available on heat and smoke removal units; wiring is run via
the cooling tubes) for easy installation of wiring from the motor dome to below the curb cap. Fatrap units are factory wired to an external
NEMA 3R junction box.
FEATURES & BENEFITS

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FEATURES & BENEFITS
Wheels
Fumex fans oer patented wheel designs. Carefully matched, highly-tooled venturis enhance the performance of these backward inclined
and non-overloading centrifugal wheels. Made of advanced aluminum alloys, the various wheel components provide superior strength
and durability, as well as spark resistant construction. The heat and smoke removal conguration utilizes steel construction.
Standard Duty, All Welded Wheel
(Standard Duty & High Pressure Belt Drive)
• Blades are curved for improved air performance while increasing their strength and rigidity.
• Backplate and inlet are stamped for consistency. They include a perimeter rim which enhances strength and improves balancing.
• Wheel assembly is robotically welded to provide extremely durable and consistent performance.
• Wheel is dynamically balanced. Balancing weights are mechanically attached to the inside of the rims of both the backplate and
wheel inlet. This allows a precise placement of the weights anywhere within a full 360º range on two separate planes, without the
possibility of detachment.
Enhanced Direct Drives
These enhanced units have Gplus™ motor selection up to 2 HP (available on single phase and three phase) and are available up to size
24. Design enhancements to Direct Drive Fumex models signicantly improve air performance, while Gplus™ EC motors oer higher
eciency, and quieter, more reliable operation. Combined with PennBarry’s patented, backward inclined, centrifugal wheel, these fan
units deliver low noise and high eciency performance.
Internal Wiring
All direct and belt drive models with ODP motors feature a polarized disconnect plug which is factory wired from the motor to the
junction box. This provides a positive method of electric shut-o as required by most codes without requiring the traditional disconnect
switch. In addition, weather resistant NEMA 3R wiring is available for selection.
Reverse Venturi
Reverse venturi reduces turbulence and improves distribution of the air as it enters the wheel
inlet and is “captured” by the blades.
Silent Wheel (Direct Drive)
• Blades’ highly curved leading edges provide unsurpassed low sound numbers with excellent
air performance.
• Backplate and inlet are stamped for consistency, plus dynamic balancing ensure smooth,
vibration-free operation.
• Riveted or riveted and welded construction ensure superior dependability over other wheel
designs.

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Spare Belt
One or two extra sets of spare belts are available for selection.
iQ Controllers
There are two types of iQ controllers available:
• iQ-IPCM (Intelligent Pressure Control Module), with Duct Sentry™ technology is designed to maintain constant pressure 24/7 within
a duct system by controlling fan motor speed
• iQ-MS (Multi-Speed Controller), with dual set-point interface allows the user to set and remotely switch among two dierent motor
speeds.
Both of them provide motor control signal output of 0-10 VDC for seamless integration with today’s advanced motor technologies to
provide substantial energy savings and peace of mind.
Extend Lube Lines
Preloaded at the factory, lube lines allow bearing maintenance when easy access to the bearings is unavailable.
Stainless Steel Hardware
If another material is desired for the unit’s hardware, stainless steel hardware is available for selection.
Variable Frequency Drives
Variable frequency drives (VFDs) are designed to meet performance requirements while increasing eciency. By varying the fan
motor input frequency and voltage, the VFD controls the motor speed and torque, helping to improve productivity and lower energy
consumption. The VSC and VSA are ideal for both new and retrot fan applications. Shipped loose and separately.
0-10 Output Potentiometer
Potentiometers are always paired with Green Plus motors. With the potentiometer, the Green Plus motors can be turned down to as low
as 80% the max operating speed while maintaining 90% eciency through the operating range. Additionally, the Green Plus can accept
0-10V input to tie to building management systems, not only allowing for savings in direct fan energy consumption but reducing the
exhaust of conditioned air during o peak hours as well
Stainless Steel Shaft
If another material is desired for the motor shaft, stainless steel shafts are available for selection.
Transformers
To meet local requirements 277V transformers are available for all direct drive units. The transformers are step-down and will step the
voltage down to 120V. Shipped loose for eld installation.
Finishes
Coatings such as Polyester Powder Coat, Epoxy Powder Coat, Phenolic Epoxy Powder Coat, and others are available. See the coatings
brochure for details.
OPTIONS & ACCESSORIES

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Mounting Pedestal
The 12” high mounting pedestal, available in aluminum or galvanized steel, incorporates a removable access panel for easy inspection
and service of motor operated backdraft dampers. It provides solid ventilator support and a weather resistant seal that does not injure or
disturb ashing. This item should not be used with Fatrap units.
Hinged Sub-Base
Hinged sub-bases provide access to the curb well for damper service or the clean out for grease applications. Constructed with a rust
proof hinge arrangement and low height, (3 ½”) the assembly is easily manipulated and reduces the impact on overall installation height.
This accessory is available for use with most models for either factory built or existing roof curbs.
Aluminum Bird & Insect Screen
Bird screens are available for all direct and belt drive models. An aluminum insect screen with a smaller mesh than the standard bird
screen is also available. However, please note that NFPA 96 installations do not allow the use of bird or insect screens. The requirements
of local codes must be reviewed to determine if there are any conicts.
Internal Wiring
NEMA 3R wiring is available for both direct and belt drive models.
Backdraft Dampers
Backdraft dampers are available for either gravity or motorized operation (motor kit optional). Dampers feature square galvanized steel
frames and multi-leaf, roll formed aluminum blades with nylon bearings. Backdraft dampers should not be used when venting kitchen
hoods. NFPA 96 installations do not allow the use of dampers. The requirements of local codes must be reviewed to determine if there
are any conicts.
Floating Hinge Kit
A oating hinge kit is also available for eld installation. This assembly connects
the exhauster directly to the roof curb and provides the same level of access as
the hinged sub-base.
Safety Service Switch
Safety service switches are available to allow positive electrical shut-o and
safety. Switches are factory mounted when factory wiring is requested. Wiring
is only run from the motor to the junction box. (Factory wiring of explosion
proof applications is not available.) A wide range of NEMA rated enclosures
with service switches are available for indoor, outdoor, and explosion proof
installations. Service switches are to be eld wired by a licensed electrician.
OPTIONS & ACCESSORIES
Fumex
Base
Floating Hinge Plate
Bushing
Back Plate
(Inside Curb/Pedestal)
Ventilator
Curb/Pedestal
Firestat Switch
Firestat switch automatically disconnects the unit when the temperature of the
air being exhausted exceeds a preset rating.

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OPTIONS & ACCESSORIES
Time-Delay Switch
(For select direct drive models only) The Airminder Model AM12 switch is a
UL recognized and CSA certied time-delay relay that operates both the fan
and room light to ventilate an area even after the occupants depart. In the
“On” position, the Airminder turns the light and fan on immediately. In the “O”
position, the light goes o immediately, and the fan is in operation for a period
of time as preset from 1 to 60 minutes. Suitable only for 1/3 HP maximum at
120/1/60.
Speed Controllers
The Lek-TrolTM controller allows adjustment in speed to a maximum of 50%
reduction, which results in a very cost eective means for system balancing. The
device can be located under the fan dome to prevent unauthorized tampering
or on the wall for ease of operation by the building occupants. (Available on
direct drive units with ODP motors and some select TE motors. See reference
table under Motor Availability)
Automatic Belt Tensioner
The factory mounted Automatic Belt Tensioner accessory eliminates the need for re-tensioning the belt after start-up. It is constructed
from 10 gage galvanized steel and incorporates ve torsion springs to automatically position the motor and maintain proper belt tension.
Additional benets include reduced belt and pulley wear and simplied belt replacement without tools. The Automatic Belt Tensioner is
available for Fumex models FX08B, FX10B, FX12BH, FX13B,
FX13BHFT and FX14B with 1/4, 1/2, 3/4, and 1 HP ODP motors. It can also be used with 1.5 HP, 3-phase ODP motors.
Spark Resistant Construction
AMCA ‘B’ construction is available as standard construction on direct drive units and as an option on belt drive units (not available on heat
and smoke removal units). If required, an explosion proof motor and service switch may be selected as options.
Wall Mounting
This option is provided as a separate product line, whose models include a “W” prex. Product line includes models up to size 24, motors
up to 2HP, and round bases (not available on heat and smoke removal units).
Prefabricated Curb
A variety of sizes of prefabricated roof curbs are available. Galvanized steel unibeam curbs are the most popular. For a complete listing
of all curb types and sizes available, see the latest PennBarry Ventilation Curb brochure. Please note that NFPA 96 installations require a
specic curb height. See Fatrap conguration on the next page.

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OPTIONS & ACCESSORIES
Model E(4) SQ T(2) SQ A SQ Ro(3) SQ Damper Size SQ Galv. Steel Gauge
FX08S/R 18.5 17 25 9 8.75 18
FX10S/R 18.5 17 25 11.5 11.25 18
FX11V/S/R/Q 18.5 17 25 11.5 11.25 18
FX13V/S/R/Q 18.5 17 25 11.5 11.25 18
FX16V/S/R/Q1/Q2 20.5 19 27 16 15.75 18
FX18V 28.5 27 35 20 19.75 18
FX08B to FX14B 24.75 23.25 31.25 16 15.75 18
FX12BH 24.75 23.25 31.25 16 15.75 18
FX13BHFT 24.75 23.25 31.25 16 15.75 18
FX16B and FX18B 28.5 27 35 20 19.75 18
FX18BH 28.5 27 35 20 19.75 18
FX24B 33.5 32 40 25 24.75 18
FX24BH 33.5 32 40 25 24.75 18
FX27B and FX30B 36.5 35 43 28 27.75 18
FX36B 44.5 43 51 36 35.5 18
Standard heights “H” are 8”, 12”, and 18” including wood nailer. ”T” dimension of curb is 1 1/2” less than the dimension of inside base of fan (“E”). “Ro”
refers to Roof Opening. “E” dimension is inside base of fan. For FT (Fatrap) units, curbs are cantless, 18” high and optionally vented.
Exploded View
HINGED
SUB-BASE
ALUMINUM
BIRD AND INSECT
SCREEN
SAFETY
DISCONNECT
SWITCH
PREFABRICATED
CURB
BACKDRAFT
DAMPER
Standard
w/C ant
Vented S elf
Fl ashing
R o (sq.)
A (sq.)
1 1 /2"
H
T (sq.)
18 " MIN.
Fumex Curb