Roberts Gorden CRV-B-9 service manual 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 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-PressurizedBlower P/N 90707501K Performance 112 Flow Units Pipe sizingDuct Design Rules 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.

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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.

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