Direct-Fired Heating and Pressurisation SystemsCombat® 3000-Series

n Improved indoor air quality – Can help to pressurise building, helping to make exhaust systems operate more efficiently.

n Airflow flexibility - Air handler can be designed to automatically modulate outdoor air, return air and/or discharge air volume to meet application needs.

n Heating flexibility - Operate fan only in warm weather for free ventilation cooling.

n Improved efficiency and quiet operation from backward-bladed fans.

n Wide range of available airflows and heat outputs - Can satisfy a wide range of application requirements.

n Less maintenance downtime - Durable and long-lasting components.

n Heavy-duty construction - Internal structure steel framework and exterior skin are welded together.

n Ease of maintenance and control - Computerized Trend System helps provide system information easily and effectively.

0087

+44 (0) 121 506 7700www.rg-inc.com

Air Management with Exhaust (AME) Models

Design: AM Model with smoke/exhaust extraction capabilities.

Function: Automatically responds to building pressure and temperature needs.

Application: Used in industrial and commercial buildings for more

optimal energy usage.

Combat® by Roberts-Gordon 3000-SeriesCOMBAT® by Roberts-Gordon 3000-Series air handlers help improve indoor air quality and provide air comfort.

Untempered outside air can infiltrate a building through openings such as gaps in windows and doors and invisible cracks be-tween building materials. The primary cause of this uncontrolled infiltration is a negative interior pressure created by process exhaust, temperature differential, and wind currents.

When using a COMBAT® air handler, building pressurisation “fights back” against the infiltration. When a building is pressurised, cracks (and even exhaust fans) become allies of the heating systems by helping the heated air in the building move to the build-ing extremities. Pressurising the building with the use of an air handler does not change the total amount of outdoor air intro-duced into the building, but rather changes the manner in which the air enters the building. Much of the air that was previously introduced by infiltration now enters the building through the air handler.

The building owner, in a controlled manner, can treat the incoming air with heating, filtration or any other required condition-ing. One point of infiltration (the air handler) with multiple points of exfiltration (building cracks, doors, exhaust) is the basis for greatly increased comfort, improved air distribution through the building space and reduced heating costs.

BottomDischarge Bottom

Return

20%Outside Air

80%CombinedOutside Air

and Return Air

Optional Motorized Inlet Damper

Exhaust

BottomDischarge Bottom

Return

20%Outside Air

80%CombinedOutside Air

and Return Air

Optional Motorized Inlet Damper

Model Configurations

BottomDischarge

Optional Motorized Inlet Damper

Model 3024 3036 3040 3044 3049 3054 3060 3066 3073 3080 3089

Airflow[m

3

/h]8,300-15,500

21,200-33,800

25,200-42,500

33,800-50,800

38,200-59,400

50,800-76,300

50,800-85,500

59,400-110,500

67,700-135,700

85,000-169,900

93,600-169,900

Output[kW]

292-365

657-878

878-1024

1,024-1,170

1,170-1,462

1,462-1,608

1,608-2,190

2,190-2,480

2,480-3,060

3,060-3,640

3,060-4510

Make-Up Air (MUA) Models

Design: 100% outdoor air with a fixed discharge air volume.

Function: Supplies outdoor air to replace mechanical exhaust.

Application: Used as make-up air for industrial processes which incorporate mechanical exhaust.

Air Management (AM) Models

Design: Variable outdoor air/return air ratio within the range of 100% outdoor air/0% return air to 20% outdoor air/80% return air. Discharge air volume is fixed.

Function: Automatically responds to building pressure and temperature needs.

Application: Used in industrial and commercial buildings for more

optimal energy usage.

Combat® by Roberts-Gordon 3000-Series FeaturesLong Lasting Construction Provided by:• Heavy-duty,steelhousing.• Sturdy,integralframethatisweldedtogetherfor

durability and longer service life.• Two-coat,weather-resistantcabinetfinish.• Heavy-duty, factory-installed motor and drive

package designed for long-lasting performance.• Heavy-duty,pre-lubricatedbearings.

Ease of Maintenance Provided by:• Largeaccesspanelforeasymaintenanceof

fan, motor, drives and burner.• Faninstalleddownstreamofburnerfor

convenient access.

Reliable, Efficient System Operation Provided by:• 25:1turndownburnerthatmaintains100%

combustion efficiency.• Backward-bladedfanwheel.• Energy-savingignitionsystem.• Electronicfuelmodulationprovidingimmediate

response.• Operationoffanonlyinwarmweathertoenjoy

free ventilation cooling.

Other 3000-Series Options:• Inlethoodhelpsprotectagainstwaterentrainment.• Filtersectionforlongerequipmentlifeofinternal

components.• Motorizedinletdamperforexfiltrationcontrol.• Uprightheaterlegs.• Twoorthree-waydischargeheads.

3000-Series Trend Controls’ Features:• Modulecanmonitor,diagnose,logandreporton

more than 30 functions including temperature, humidity and building pressure.

• Easy-to-followdisplayshelpsimplifysetupand changes.

• Collectionofairhandlerdataallowstrendingand in-depth analysis.

• Remotemonitoringviamodeminterface.• LCDtemperaturedisplayscreenforquickandeasytemperatureadjustment.

Mezzanine-Supported Horizontal on Legs (Indoor or Outdoor)

Upright Outdoor Upright Indoor

OA

DA

RA

DA

OA

DA

LEGEND

OA = Outside Air DA = Discharge Air RA=ReturnAir

Typical Installations

DA

OA

Printed in U.S.A. C3BUK 2.5 M 0609 Orig.

Installation Code and Annual Inspections: All installation and service of ROBERTS GORDON® equipment must be performed by a contractor qualified in the installation and service of equipment sold and supplied by Roberts-Gordon and conform to all requirements set forth in the ROBERTS GORDON® manuals and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help facilitate optimum performance and safety, Roberts-Gordon recommends that a qualified contractor conduct, at a minimum, annual inspections of your ROBERTS GORDON® equipment and perform service where necessary, using only replacement parts sold and supplied by Roberts-Gordon.Further Information: Applications, engineering and detailed guidance on systems design, installation and equipment performance is available through ROBERTS GORDON® representatives. Please contact us for any further information you may require, including the Installation, Commissioning, Operation and Service Manual. This product is not for residential use.This document is intended to assist licensed professionals in the exercise of their professional judgment.

© 2009 Roberts-Gordon LLC All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means – graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems – without written permission of Roberts-Gordon LLC.

Roberts-Gordon Europe LimitedUnit A, Kings Hill Business ParkDarlaston Road, WednesburyWest Midlands WS0 7SH UKTelephone: +44 (0)121 506 7700Fax: +44 (0)121 506 7701Service Telephone: +44 (0)121 506 7709Service Fax: +44 (0)121 506 7702E-mail: uksales@rg-inc.comE-mail: export@rg-inc.comwww.rg-inc.com

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