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LOOK TO A LEADER . . . Dedicated to providing excellent product, service
and support to meet our customers’ needs and beyond. Roberts-Gordon
introduced vacuum assisted, low-intensity, gas-fired radiant heating systems
and we remain an industry leader with a complete range of top quality
products. With many units installed world-wide, Roberts-Gordon has provided
comfortable, economical, and reliable warmth for a variety of satisfied
customers.
ROBERTS GORDON® gas-fired, low-intensity, radiant heating systems help
provide comfort, while facilitating reduced energy consumption up to 50% and
more! The principles of radiant energy, can result in considerable energy savings
and comfort, while helping to lower your building’s carbon footprint and
environmental impact.
LESS HEAT STRATIFICATION
ROBERTS GORDON® radiant heaters do not blow high temperature heated air
that ends up rising to the ceiling. In fact, ROBERTS GORDON® radiant heaters do
not heat air. ROBERTS GORDON® radiant heaters reflect and direct radiant energy toward the floor. The radiant energy is in the form of electromagnetic waves
that can be directed and reflected like light. These waves travel through the air
(not heating it) toward the floor until they strike solid objects. The objects are
heated when they absorb the radiant energy. Floors, people and equipment
below ROBERTS GORDON® radiant heaters absorb and store heat, then
re-radiate heat and warm the air by convection as air passes across the warm
objects. Compared to other traditional heating systems, ROBERTS GORDON®
radiant heaters use less energy to heat the area at occupant level. In addition,
since there is no need for ceiling fans to push heat to the floor, electrical usage
can be reduced.
REDUCED BUILDING HEAT LOSS
Because ROBERTS GORDON® radiant heaters do not introduce high temperature
air into the heated space, they generate less heat stratification. Air temperatures
at the ceiling are lower than with other heating systems. Lower ceiling
temperatures result in reduced heat loss through the roof and lowered
building heat loss. Lowered building heat loss means less heat is needed to heat
the same space.
FLOORS BECOME HEAT RESERVOIRS
The sun does not heat the earth’s atmosphere directly; rather its radiant rays
heat the earth, people and objects. ROBERTS GORDON® radiant heaters use less
fuel than other heating systems because it heats a building and its occupants
similar to how the sun heats the earth. With ROBERTS GORDON® radiant heaters,
floors and objects become massive secondary heat exchangers. These objects
act as heat reservoirs, storing heat, then releasing it into the space by
re-radiation and convection to raise space temperature at occupant level.
ROBERTS GORDON® Radiant Heaters Help Reduce
Energy Bills and Improve Comfort
FREE ENERGY RECOVERY
In commercial and industrial buildings, rapid air changes and heat loss commonly
occur when large doors are opened. As a result, valuable heated air escapes
outdoors, wasting money. With air heating, more time and money is required for
heat recovery because all the energy burned is used only to heat air, when the
heated air is lost, no energy remains in the space. With ROBERTS GORDON® radiant
heaters, energy stored in floors and objects is re-used for faster energy recovery in
the space, without burning more fuel.
GREATER COMFORT AT LOWER TEMPERATURES
To obtain fuel savings of up to 50% over conventional heating systems, it is essential
to design a radiant system for maximum distribution and comfort. When designing
systems for comfort, or reaching the operative temperature (T0), designers need to
maximise the mean radiant temperature (MRT) and depress the air temperature (Tair).
For example, to reach a perceived comfort of 18° C (65° F), with radiant, the air
temperature can be lowered to 12° C (55° F). This helps reduce energy costs!
Due to elevated mean radiant space temperature, building occupants feel the same
amount of warmth when thermostats are set -15° to -12° C (5° to 10° F) lower with
ROBERTS GORDON® radiant heaters than with other heating systems. Lower
thermostat setpoint translates into additional energy savings.
CLEAN, QUIET, DRAFT-FREE HEAT
Since ROBERTS GORDON® radiant heaters quietly warm objects without drafts
or blowing air, heated areas are cleaner and quieter. ROBERTS GORDON® radiant
heaters spread a gentle blanket of low-intensity, radiant energy that directly warms
people, floors and objects in a building. By more effectively delivering heat to the
occupied area (floor level), ROBERTS GORDON® radiant heaters offer many benefits
that can result in improved conditions and greater fuel savings.
MANY DESIGN OPTIONS
Design flexibility with a broad range of inputs and tube lengths, helps create even
heating and uniform comfort. ROBERTS GORDON® radiant heating systems are
custom-engineered and designed to match the specific building plan and space
requirements.
CORAYVAC® HIGH EFFICIENCY CONDENSING SYSTEM
Roberts-Gordon Europe Limited offers CORAYVAC®, a unique radiant heating system
with a continuous burners-in-series design. Because it can be designed as a
condensing system, CORAYVAC® systems lower exhaust temperatures to put more
heat in the space and less wasted through the exhaust. This results in additional
efficiency and fuel savings.
Proper design, installation, use and maintenance is necessary for optimum performance.
This document is intended to assist licensed professionals in the exercise of their professional
judgment.
CORAYVAC® High Efficiency,
Condensing Radiant System Features
BURNERS-IN-SERIES DESIGN
Located from 3 m to 21.3 m apart, CORAYVAC® burners constantly
regulate the air-to-gas mixture to achieve the optimum ratio for clean, efficient
combustion. Models are available with inputs of 10, 15, 20, 25 and 30 kW.
Features include three-try direct spark ignition, pre-purge, filtered combustion air
and cast-iron burner head.
REFLECTORS
ROBERTS GORDON® deep-dish, continuous
aluminium reflectors are shaped to help
maximise reflection of the energy emitted
by the radiant tube and beamed toward
the floor where needed. End caps and
continuous reflectors help keep tube
convective heat loss to a
minimum and help
ensure heat exchangers
maintain heat.
Uniform Heat with
CORAYVAC® In-Series Burners
Models CRT 20, 25 and 30 meet
ECA efficiency requirements.
TUBING
The CORAYVAC® system utilizes 100 or 150 mm (4" or
6") O.D., 16-gauge, heat treated aluminised steel
tubing. The heat created by the burners is drawn
through the tubes, which radiate the warm, gentle,
radiant energy.
VACUUM PUMPS
A vacuum pump draws the heat throughout the entire
system. It exhausts products of combustion to the
outdoors at temperatures typically below 66° C (150° F).
Roberts-Gordon offers four pumps for various system
sizes and layouts. 750 and 1,100 W pumps are available in single
and three phase. Up to twelve heaters can be common vented
with one vacuum pump. Design flexibility allows side wall
venting, even in large buildings.
CONTROLS
CORAYVAC® systems can be
controlled by an NRG Control.
The NRG Control is also capable of
controlling other ROBERTS GORDON®
radiant and warm air equipment.
See the last page for details.
COUPLINGS
Heat exchanger tubing is
connected together with couplings.
Roberts-Gordon offers stainless steel
and damper couplings.
Condensing System - Designed to
Condense for Optimum Fuel
Saving Efficiency
COMBUSTION CHAMBER
The aluminised steel CORAYVAC®
combustion chamber helps provide
corrosion resistance and durability
required for condensing systems.
Warehouses / Distribution Centres
Sports Facilities
Machine Shops
Distribution Centres
Auto Dealerships
Vehicle Service Shops
Bus Garages
Fire Stations
Farm Buildings
Stores
Package/Parcel Hubs
Swimming Pools
Auto Dealerships
Retail Shops
Zoos
Aircraft Hangars
Manufacturing Plants
Metal Buildings
Loading Docks
Auto Body Shops
Truck Terminals
Parking Ramps
Sports Facilities
Workshops
Showrooms
Restaurants
Hockey Rinks
Animal Confinement
Buildings
Loading Bays
BLACKHEAT® Radiant U-tube, Linear, Double Linear
and Multiburner Features
Low-Intensity, Unitary Radiant Heaters
n Suitable for various applications due to a wide range of burner inputs and tube lengths.
n More even heat distribution from vacuum design with uniform tube temperature.
n Design flexibility with straight, U-tube or L-configurations.
n U-tube heater has reduced wiring costs due to
proximity of fan to burner.
n Double linear heater has reduced building
penetrations due to a single fan.
Low-Intensity, Radiant Heating Systems
n Custom engineered with a variety of zoning options.
n More even heat distribution from vacuum design with uniform tube temperature.
n Design flexibility with straight, U-tube or
L-configurations.
n Reduced building penetrations and
installation costs, as a result of
multiple burners per pump.
n Models meet ECA efficiency
requirements.
Low-Intensity, Unitary Radiant Heaters for
Outdoor Commercial Applications
n Bathes customers in warmth keeping them comfortable
and extending their stay.
n Energy efficient by heating tables, chairs and
objects, rather than the air.
n Helps maximise profits by extending your facility without the
construction expense.
n Assists in reducing maintenance costs due to protection of internal burner
components against dust and water.
n Design flexibility with straight, U-tube or L-configurations.
The Energy Saving Control for
ROBERTS GORDON® Equipment
n Improved fuel savings through self-learning optimisation - the controller varies
the heating start-up time to help ensure that the building comes up to the
required temperature precisely at the beginning of every programmed “on”
period.
n Convenience – system can be operated as a full Building Management System
(BMS) (free software required) or networked with up to 32 controllers linked
together (software not required).
n Easy, efficient monitoring – check times, temperatures and status of several
controllers from one convenient location.
n Energy savings – greater control of controllers from one location helps result
in reduced building energy usage.
n Secure - coded entry required to access programming features.
n Installation flexibility - three remote sensor options available.
n Design flexibility - capable of controlling ROBERTS GORDON® warm air and
unitary radiant heating products.
n Easy to install - built in sensor means no extra wiring.
FEATURES OF ROBERTS GORDON® LOW-INTENSITY, GAS-FIRED,
RADIANT HEATERS:
n Broad range of inputs and tube lengths to fit a variety of building sizes
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and floor plans.
Durable components help provide long equipment life.
Ceiling mounting helps keep valuable floor space clear.
Detailed installation, commissioning, operation and service manuals to
assist in reducing installation and service time.
Burner box design with protective enclosure for controls helps minimise
exposure to dirt and moisture from combustion air.
Deep-dish, parabolically-designed reflectors with end caps help maximise
energy reflection and minimise heat loss by convection.
Reflectors can be tilted or side reflectors can be added to concentrate heat
where needed.
Quick fix couplings and hangers provide ease of installation.
Natural gas or LPG models available.
CE design certified to meet industry standards.
Thank You for Your Business!
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 LLC 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 LLC 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 LLC.
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.
These products are not for residential use.
This document is intended to assist licensed professionals in the exercise of their professional judgment.
Roberts-Gordon Europe Limited
Unit A, Kings Hill Business Park
Darlaston Road, Wednesbury
West Midlands, WS10 7SH UK
Telephone: +44 (0)121 506 7700
Fax: +44 (0)121 506 7701
Service Telephone: +44 (0)121 506 7709
Service Fax: +44 (0)121 506 7702
E-mail: [email protected]
E-mail: [email protected]
www.rg-inc.com
© 2010 Roberts-Gordon LLC
Printed in U.S.A.
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 system without written permission of Roberts-Gordon LLC.
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