PENNBARRY RAU or RAUMO Roof Axial Upblast Ventilator User Guide
- June 9, 2024
- PENNBARRY
Table of Contents
PENNBARRY RAU or RAUMO Roof Axial Upblast Ventilator User Guide
INTRODUCTION
RAU/RAUMO Roof Axial Upblast Ventilators
The RAU / RAUMO is ideal to provide exhaust ventilation where removal of high volume of air for large spaces is necessary such as\ warehouses, gymnasiums, manufacturing facilities and other general ventilation applications.
These Upblast Roof Axial Exhaust Ventilators offer a robust construction of galvanized steel making them weather resistant while maintaining a competitive weight. Both the RAU / RAUMO features equal roof curb dimensions for ease of new installations. Their curb dimensions match most common curb dimensions existent in the market which facilitates retrofit jobs.
The RAUMO provides easy access to the motor and drives for service and parts replacement directly from the roof eliminating the need of disturbing the interior space. The motor compartment is accessible without tools for ease of service.
Standard Units
Model: RAU – Fabricated Steel Propeller
Static pressure up to 0.5” wg.
Belt Drive – Flow capacity up to 37,000 CFM
Remote Drive Units
Model: RAUMO – With remote drive option
Static pressure up to 0.5” wg.
Belt Drive – Flow capacity up to 35,000 CFM
CERTIFICATIONS & LISTINGS
AMCA Certification
PennBarry certifies that models RAU/RAUMO roof exhausters are licensed to bear
the AMCA Seal. The ratings shown are based on tests and procedures performed
in accordance with AMCA Publication 211 and Publication 311 and comply with
the requirements of the AMCA Certified Ratings Program
UL and cUL Certification
RAU and RAUMO exhausters carry the UL label, UL705 (ZACT/ZACT7), file #E28413.
RAUMO fans with the heat and smoke removal option carry the UL label, UL793
(ZAXH/ZAXH7), file #MH19473
FEATURES & BENEFITS
Fan Blades
The design of fan blades has been very carefully determined to insure highly
efficient performance. Cast aluminum, airfoil, or die-formed high capacity
steel fan blades provide the flexibility required to achieve most fan
performance ratings. Spark resistant fans use blades cast of high tensile
strength aluminum alloy. Versatility is accomplished through the use of four
and six blade fans which exhaust an even flow.
All blades are balanced to run properly..
Venturi Inlet
Combined with a heavy gauge base is a one-piece, leakproof, spun and streamlined venturi inlet to minimize entrance losses and noise.
Weather Resistant Operation
Air blast turns back rain and snow, and provides an air curtain to keep out the elements. Full size windband protects the dampers while open.
Simplified Construction
RAU/RAUMO fans require little maintenance. They are ruggedly built of heavy metal, securely welded and thoroughly reinforced with beading and angle rings. When properly installed, they will withstand high winds. Flutter guards are standard with the RAU/RAUMO and provide extra protection against damper flutter due to pressure difference.
Damper Assembly
The damper assembly consists of a number of components and features:
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Dampers automatically overlap the air shaft to prevent heat losses and backdrafts.
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Drainage Trough: Centrally located to allow water to run off as required.
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Easily Removable: The complete damper assembly is easily removable to gain access to the internal fan components, if required.
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End Pivot Damper Arrangement: The design of the end pivot damper arrangement utilizes the full force of the fan at the blade tips.
This maximizes lift, employs the complete working area of the blades, and eliminates dead spots at the center of the hub of the fan. -
Rubber Gasketing: Fitted around the air shaft to help seal the damper opening and also to eliminate noise upon closure.
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Rubber Stops: Used to prevent the dampers from locking in the open position, rubber stops are installed on the upper wind band support.
OPTIONS & ACCESSORIES
Fan Guards
Since RAU/RAUMO fans contain rotating parts, PennBarry recommends the following safety precautions be taken during installation, operation, and maintenance. Install fan guards on all nonducted fan installations to protect people working around the fan from accidental falling debris and to protect the fan from foreign objects coming into contact with moving parts. Inlet fan guards for HiteSaver models HS and HZ must be fabricated locally. For proper and safe operation, fan RPM should not exceed that recommended in performance tables. Installations that result in excessive vibration are unacceptable. Designers should urge contractors to refer to operation, maintenance, and instruction manuals for proper and acceptable levels of vibration.
Safety Disconnect Switches
UL listed, non-fused, safety disconnect switches can be provided to match
system electrical characteristics.
These can be furnished in a weatherproof enclosure specifically designed for
outdoor installation; or, under the motor weather cover in remote drive belted
units. Disconnect switches are to be field wired by a licensed electrician
Latches
For areas of high wind and interior positive pressure, magnetic latches and/or air activated positive locking latches are also available for factory or field mounting. These latches help to minimize flutter and keep dampers closed when the fan is not in operation.
Finishes
Coatings such as air dry enamel, epoxy, or heresite are available upon request. See the coatings brochure for details.
Heat & Smoke Removal Configuration (RAUMO – HS only)
For smoke control systems, PennBarry Heat and Smoke Removal configured RAUMO units are listed at 500°F for 4 hours.
Roof Curbs
Roof curbs are furnished in a variety of types from canted or selfflashing to sloped or flat pitch. Standard construction includes galvanized or aluminum material, insulation, and metal, rubber gasketing or wooden nailer mounting surface. See the Roof Curbs brochure for details.
Illustrated below is the Unibeam Curb, which is most generally used with RAU/RAUMO vertical discharge ventilators. Costs of this device are normally less than field built curbs. The Unibeam Curb shown is for flat roof installation.
RAU | STANDARD HEIGHT
RAU/RAUMO ventilators are available in two standard drive arrangements. Belt drive units are available for general ventilation conditions where the motor and drive components are installed within the ventilator air shaft to take advantage of airstream cooling action. The exhausting air washes the motor and bearings, increasing longevity of these components.
- Venturi Panel
- Propeller (Hp & Lp)
- Structure Assembly
- Shaft & Bearing
- Motor Mount Assembly
- Bearing Mounting Plate
- Windband Assembly
- Damper Assembly
Model| A| B| C| D| E| F| Curb Cap| Approx.
Level 1| weight| (lbs.)
Level| 2
---|---|---|---|---|---|---|---|---|---|---|---
20| 28.25| 22.88| 16.38| 2.00| 23.38| 12.38| 30.00| 134| 137
24| 30.50| 25.75| 15.88| 2.00| 28.13| 12.38| 34.00| 150| 153
30| 38.50| 28.50| 19.88| 2.00| 34.50| 16.38| 40.00| 193| 197
36| 42.50| 33.00| 19.75| 2.00| 41.00| 19.75| 46.00| 227| 233
42| 50.75| 37.00| 19.75| 2.00| 47.50| 16.38| 52.00| 309| 318
48| 57.00| 41.13| 21.00| 2.00| 53.50| 17.50| 58.00| 364| 377
54| 61.88| 45.13| 22.63| 2.00| 61.00| 19.00| 66.50| 473| 489
All dimensions in inches. *First gauges are for mounting bases. Second gauges
are for windbands and air shafts. Although mounting base dimensions are
standard, adapters and modifications are available when needed. Ask for
certified dimension drawings before proceeding since dimensions do change.
Approximate weight does not include accessories.
RAUMO, REMOTE DRIVE UNIT
- Protective Windband(Ribbed Reinforced)
- Spun Inlet Venturi
- Motor
- Damper Stop-Rubber Cushioned
- Belt & Bearing Enclosure With Air Guide (Optional)
- Drive Support Assembly
- Drainage Gutter
- Butterfly Damper Assembly
- Motor Weather Cover
- Supporting Bracket
- Fan Shaft & Bearing
- Belt & Pulley
- Propeller (Hp & Lp)
| Approx. weight (lbs.)
---|---
Model| A| B| C| D| Curb Cap| Level 1| Level 2
20| 28.25| 46.88| 21.25| 2.25| 29.50| 254| 257
24| 30.50| 49.75| 21.75| 225| 33.50| 278| 281
30| 38.50| 56.38| 25.75| 225| 39.50| 353| 357
36| 42.50| 61.00| 25.75| 225| 45.50| 419| 425
42| 50.75| 65.00| 25.75| 225| 51.50| 558| 566
48| 57.00| 69.00| 25.75| 225| 57.50| 628| 641
54| 61.88| 74.88| 27.50| 225| 66.00| 813| 829
Outside dimension of curb should be 1 1/2” less than ‘E’ dimension.
All dimensions in inches. Must specify heat and smoke option when ordering.
Approximate weight does not include accessories.
RAU/RAUMO FAN SELECTIONS
Model
RAU / RAUMO
Construction
Motor
Common Options
Options and Accessories
Product Specific Options
Commercial
Roof & wall exhaust centrifugal fans
Ceiling, wall, & inline centrifugal fans
Roof supply centrifugal fans
Square & round centrifugal fans
Wall mounted axial fans
Hooded roof axial fans
Upblast roof axial fans
Gravity ventilators
Roof curbs
Industrial
Freestanding centrifugal fans
Industrial & material handling fans
Tubular centrifugal inline fans
Mixed flow centrifugal fans
Plug & plenum fans
Wall mounted propeller fans
Tube axial fans
Vane axial fans
Bifurcator fans
Lab exhaust
Kitchen ventilation
Make-up air units
Exhaust fans
Energy recovery
Outdoor units
Indoor units
PennBarry is proud to be your preferred manufacturer of commercial and industrial fans and blowers. Learn how PennBarry can assist you in your next application by contacting your PennBarry Representative or visiting us on the web at www.pennbarry.com
PennBarry | www.pennbarry.com |
pennbarrysales@pennbarry.com | Tel 972
212 4700 | Fax 972 212 4702 PennBarry reserves the right to make changes at
any time, without notice, to models, construction, specifications, options and
availability.
This document illustrates the appearance of PennBarry products at the time of
publication. View the latest updates on the PennBarry website.
© 2018 PennBarry. All rights reserved. TX April 2021.