Roberts Gorden CRV-B-4, CRV-B-8 After Each Burner, Allowable Tailpipe Lengths Burner Model

Page 23

SECTION 6: RADIANT TUBE AND TAILPIPE

4.Select pump model series for total system flow units:

EP-100: up to 66 flow units

EP-200: up to 110 flow units

EP-300: up to 224 flow units

5.See Page 14, Table 2 for altitudes greater than 2000'.

6.For each branch, add the length of radiant tube

after each heater:

Burner

Radiant Tube Length

After Each Burner

 

1

+

2

 

 

+

 

3

 

 

+

 

4

 

 

+

 

5

 

 

+

 

6

 

 

+

 

 

 

 

 

Total Radiant Tube

Length in Branch =

Repeat this calculation for each branch in the system.

7.Divide the total radiant tube length in the branch by the number of burners in the branch to get the average radiant length per burner.

Average Radiant

Length Per Burner =

Repeat this calculation for each branch in the system.

8.Using the average radiant length per burner (Calculated in Step 7) See Page 17, Table 4 to select the allowable tailpipe lengths per flow unit.

Table 4: Allowable Tailpipe Lengths

 

 

 

 

Burner Model

 

 

 

 

 

 

 

 

 

 

 

 

B-2

B-4

B-6

 

B-8

B-9

B-10

B-12/B-12A

 

 

 

 

 

 

 

 

 

Radiant Tube Length (average distance between burners)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum (ft)

10

12.5

20

 

20

20

30

35

 

 

 

 

 

 

 

 

 

Recommended (ft)

15

20

25

 

30

30

40

50

 

 

 

 

 

 

 

 

 

Maximum (ft)

20

25

35

 

45

50

60

70

 

 

 

 

 

 

 

 

 

Tailpipe length per flow unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum (ft)*

1.2

1.2

1.2

 

1.2

1.2

1.2

1.2

 

 

 

 

 

 

 

 

 

Recommended (ft)

1.5

1.5

1.5

 

1.5

1.5

1.5

1.5

 

 

 

 

 

 

 

 

 

Maximum (ft)

2.5

2.5

2.5

 

2.5

2.5

2.5

2.5

 

 

 

 

 

 

 

 

 

Maximum (ft) for EP-100 only

1.7

1.7

1.7

 

1.7

1.7

1.7

1.7

 

 

 

 

 

 

 

 

 

*Minimum tailpipe lengths can only be used if radiant tube length is recommended or greater.

17

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Contents Design Manual Page Roberts-Gordon LLC Page Table of Figures Page Concept Zero Regulator SafetyCRV-SERIES System 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 Pump Exhaust Length Requirements Pump CapacityTailpipe Flow 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 Roberts Gordon Ultravac Control MethodsRoberts Gordon System Control P/N Pressure Switch Pressurized Systems AIR Supply SystemPressurized Non-PressurizedBlower P/N 90707501 Performance 112 Flow Units Pipe sizingDuct Design Rules Sample Layout for Pressurized Outside Air Systems Roberts Gordon Ultravac Design Requirements CRV-SERIES Equipment Specifications Page Maintain Clearance Side Clearance below
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CRV-B-4, CRV-B-2, CRV-B-6, CRV-B-8 specifications

Roberts Gorden is renowned for its innovative heating solutions, particularly the CRV series of infrared radiant heaters, which include models CRV-B-2, CRV-B-4, CRV-B-6, and CRV-B-8. These heaters are designed to provide effective and efficient heating, making them ideal for various industrial, commercial, and agricultural applications.

One of the standout features of the Roberts Gorden CRV series is its advanced infrared heating technology. Unlike conventional heating systems that heat the air, infrared heaters warm objects and people directly, allowing for a more energy-efficient and comfortable environment. This makes the CRV series particularly effective in large spaces, such as warehouses, manufacturing facilities, and greenhouses.

The CRV-B models are engineered for versatility and can be mounted in various configurations, including horizontal and vertical placements, providing installation flexibility. Each model is available in different sizes and heating outputs, ensuring that users can select a unit tailored to their specific heating requirements. The CRV-B-2, for instance, is ideal for smaller spaces, while the CRV-B-8 offers higher power for larger areas.

Moreover, these heaters come equipped with advanced control systems that allow for precise temperature regulation. The units can be integrated with building management systems, enabling users to monitor and adjust settings remotely. This feature not only enhances comfort but also contributes to energy savings, as the heaters can be programmed to operate only during necessary hours.

Structural durability is another significant characteristic of the CRV series. Constructed with high-quality materials, the heaters are designed to withstand the rigors of industrial environments while maintaining optimal performance over time. The reflective surfaces enhance heat distribution, ensuring that warmth is evenly distributed throughout the space.

Safety is paramount with Roberts Gorden’s CRV heaters. They are designed with built-in safety mechanisms, including overheat protection and automatic shut-off features to prevent accidents.

Overall, the Roberts Gorden CRV-B-2, CRV-B-4, CRV-B-6, and CRV-B-8 models exemplify cutting-edge infrared heating technology, delivering effective, efficient, and reliable heating solutions tailored to diverse applications. With a combination of flexibility, advanced control capabilities, and safety features, these heaters are an excellent choice for anyone in need of powerful heating solutions.
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