Roberts Gorden CRV-B-9 service manual Concept

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SECTION 1: CONCEPT

SECTION 1: CONCEPT

The concept of CRV-Series is easy to understand.

However, it means discarding old ideas because CRV-

Series is a different kind of heating system.

CRV-Series is a gas-fired, vacuum-operated, low- intensity infrared heating system incorporating a pat- ented incremental burner system.

Gas-Firedmeans it uses clean-burning Natural or

Propane gas.

Vacuum-Operatedmeans that the pump draws all the products of combustion through the system and expels them outdoors.

Low-Intensitymeans the radiant surfaces of the

tubes do not glow red; instead they operate at a lower temperature (less than 900° F or 482.2° C) and radiate heat at lower intensity per square foot of radiating sur- face. Area coverage is provided by long runs of 4" (10 cm) O.D. tubing which hang from the ceiling or roof supports. Reflectors direct the radiant heat downward to occupied areas.

Radiant refers to the heat radiated by the CRV-Series system. Because this heat is in the form of infrared rays, it does not directly heat the air. Instead, the rays heat objects such as floors, people, walls, cars, machines, tools, etc. The warm objects, in turn, heat the air through convection.

Incremental Burner System means that several burners can operate in-series and fire into the same run of steel tube that carries the combustion gases from upstream burners. Each of these burners in a radiant branch may have different firing rates; also, the space between burners may vary. This allows the designer to match heat gain to heat loss for each area of the building. Firing burners in-series provides higher thermal and radiant efficiency.

In a properly designed low-intensity radiant system, the occupants should be barely aware of the radiant heat when the system is firing. They will feel little or no change when the thermostat is satisfied and the sys- tem is not firing. This combines with warm floors, warm walls and draft-free operation to improve the mean radiant temperature of the space. This is the key to the exceptional comfort and fuel efficiency provided by the CRV-Series system.

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Contents Design Manual Page Roberts-Gordon LLC Page Table of Figures Page Concept CRV-SERIES System SafetyZero Regulator Assembly Overview Two Branch System Shown Fuel Savings and Comfort Clearances to combustibles at all times for safety ONE Side Reflector Standard ReflectorUniversal SHIELD, Position Foot Deco Grille Example Radiant Adjustment to Heat LossRadiant Height Adjustment Factor Sizing and Design ConsiderationsRadiant Distribution Increased Coverage Selecting the BurnersRadiant Distribution Radiant Distribution Average Coverage= mounting height Radiant Branch Flow Flow LoadingBurner Flow Units Tailpipe Flow Pump CapacityPump Exhaust Length Requirements Maximum Radiant Tube Length Radiant Tube and TailpipeRadiant Tube Length Minimum Radiant Tube LengthFlow Units Per Branch Design ParametersPump Model Series Maximum Loading CRV-Series Design MethodsAllowable Tailpipe Lengths Burner Model After Each BurnerTo Calculate the Total System Tailpipe Tailpipe Design MethodRule of Thumb Unshared Calculations System with EP-300 Series PumpDamper Couplings Possible Damper Coupling Locations Example System Layout Option Example CRV-SERIES System Layouts12 m 10 3 m 20 6 m 12 m Tailpipe 10 3 m 100 30 m Example System Layout Option 7, 8 Corayvac Modulating Controls Control MethodsRoberts Gordon System Control Roberts Gordon UltravacSpst Transformer Relay Kit P/N 90417600K Analog Signal Modulating ThermostatMS/TP Wiring Pressure SwitchPressurized Systems AIR Supply SystemPressurized Non-PressurizedDuct Design Rules Pipe sizingBlower P/N 90707501K Performance 112 Flow Units Sample Layout for Pressurized Outside Air Systems Roberts Gordon Ultravac Design Requirements CRV-SERIES Equipment Specifications
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CRV-B-9 specifications

The Roberts Gordon CRV-B-9 is a state-of-the-art infrared radiant heater designed for industrial and commercial heating applications. Renowned for its efficiency and effectiveness, the CRV-B-9 represents a significant advancement in the world of space heating solutions.

One of the main features of the CRV-B-9 is its advanced infrared technology, which allows for precise heating without the necessity of warming the entire space. This targeted heating provides immediate comfort, as it directly warms objects and people rather than the air around them, making it particularly effective in large warehouses, manufacturing facilities, and retail spaces.

The heater boasts an impressive output of up to 80,000 BTUs, making it suitable for a wide range of applications. It utilizes natural gas as fuel, which contributes to its efficiency and cost-effectiveness. With a robust design and durable construction, the CRV-B-9 is built to withstand the rigors of industrial environments while ensuring a long product lifespan.

Another significant characteristic of the CRV-B-9 is its ability to integrate with advanced control systems. This includes compatibility with programmable thermostats and energy management systems, allowing for optimized temperature control and reduced energy consumption. The heater can be adjusted to suit different operational needs, making it a flexible solution for various heating scenarios.

The CRV-B-9 also features a compact design, allowing for easy installation in a variety of spaces. Its low-profile shape and modular capability enable users to arrange multiple units to achieve the desired heating coverage without compromising floor space, a crucial aspect for busy, high-traffic areas.

Safety is a priority with the CRV-B-9, which is equipped with various safety features such as a flame safety cutoff switch and over-temperature protection. These mechanisms ensure safe operation, providing peace of mind for users in demanding environments.

In summary, the Roberts Gordon CRV-B-9 infrared radiant heater stands out for its innovative technology, impressive output, energy efficiency, and safety features. Its flexibility and robust design make it an ideal choice for businesses looking to enhance comfort while minimizing energy costs. Whether in a manufacturing plant or a retail outlet, the CRV-B-9 provides a reliable and effective heating solution.
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