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Roberts Gorden
CRV-B-9 service manual
Models:
CRV-B-9
1
6
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40 pages
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Specification
Maintenance
MS/TP Wiring
Radiant Adjustment to Heat Loss
Safety
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Image 6
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Page 7
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Contents
Gas-Fired, Low-Intensity
Design Manual
CoRayVac
Custom Engineered
Page
TABLE OF CONTENTS
2012 Roberts-GordonLLC
Page
TABLE OF FIGURES
LIST OF TABLES
Page
SECTION 1 CONCEPT
2.1 Safety
SECTION 2 THE CRV-SERIESSYSTEM
2.2 Zero Regulator
1. Radiant tubing between burners, and 20-50 6-15m downstream of the last burner is normally hot rolled steel or heat-treatedaluminized steel. All tailpipe tubing must be por- celain coated steel or heat-treatedaluminized steel
2.3 Fuel Savings and Comfort
Fire Hazard
clearances to combustibles at all times for safety
centimeters
FIGURE 2: STANDARD REFLECTOR
inches
FIGURE 3 ONE SIDE REFLECTOR
centimeters
FIGURE 5 UNIVERSAL SHIELD, POSITION
inches
inches
FIGURE 10 PROTECTIVE GRILLE
FIGURE 8 2-FOOTDECO GRILLE
FIGURE 9 BARRIER SHIELD
inches
SECTION 4 SIZING AND DESIGN CONSIDERATIONS
4.1 Radiant Adjustment to Heat Loss
4.2 Radiant Height Adjustment Factor
EXAMPLE
4.4.1 Radiant Distribution Average Coverage
4.3 Selecting the Burners
4.4 Radiant Distribution
4.4.2 Radiant Distribution Increased Coverage
FIGURE 11 Radiant Distribution Average Coverage
FIGURE 13 Radiant Distribution Heavy Coverage
SECTION 5 FLOW LOADING
5.1 Radiant Branch Flow
FIGURE 14 Burner Flow Units
Tailpipe
5.2 Pump Capacity
FIGURE 15 Vacuum Loss Curve for 4 Shared
5.3 Tailpipe Flow
6.1.1 Minimum Radiant Tube Length
SECTION 6 RADIANT TUBE AND TAILPIPE
6.1 Radiant Tube Length
6.1.2 Maximum Radiant Tube Length
Pump Model Series Maximum Loading
FIGURE 16 Tube Length vs. Efficiency
6.3 Design Parameters
6.4CRV-SeriesDesign Methods
After Each Burner
6.5.1 Rule of Thumb Unshared Calculations
EXAMPLE 3 B-10Radiant Tube vs. Tailpipe Length
6.5 Tailpipe Design Method
System with EP-300Series Pump
6.5.5 Damper Couplings
FIGURE 17 Possible Damper Coupling Locations
SECTION 7 EXAMPLE CRV-SERIESSYSTEM LAYOUTS
FIGURE 18 Example System Layout Option
7.1 Example System Layout Option
FIGURE 20 Example System Layout Option
FIGURE 19 Example System Layout Option
7.2 Example System Layout Option
7.3 Example System Layout Option
7.4 Example System Layout Option
FIGURE 21 Example System Layout Option
FIGURE 22: Example System Layout Option
7.5 Example System Layout Option
FIGURE 24 Example System Layout Option
FIGURE 23 Example System Layout Option
7.6 Example System Layout Option
FIGURE 25 Example System Layout Option
FIGURE 26: Example System Layout Option
7.7 Example System Layout Option 7, 8 and
SECTION 8: CONTROL METHODS
Disconnect electric before service or maintenance
Turn off gas supply to heater before service
Electrical Shock Hazard
MS/TP Wiring
8.3.1 Analog Signal Modulating Thermostat
8.3.3Analog signal Modulating with BACnet
8.6 Pressure Switch
9.2 Non-Pressurized
SECTION 9 AIR SUPPLY SYSTEM
9.1 Pressurized
9.3.2 Pressurized Systems
Blower P/N 90707501K Performance 112 Flow Units
9.3.3 Pipe sizing
Duct Design Rules
FIGURE 28: Outside Air Blower
Branch A
Branch B
Branch C
Page
11.2Equipment 11.2.1 Burner
SECTION 11 CRV-SERIESEQUIPMENT SPECIFICATIONS
11.1 Burner and Burner Controls
11.2.2 Pump
