Manuals / Roberts Gorden / Household Appliance / Gas Heater

Roberts Gorden CRV-B-2, CRV-B-8, CRV-B-6, CRV-B-4 service manual Possible Damper Coupling Locations

Models: CRV-B-4 CRV-B-2 CRV-B-6 CRV-B-8

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CRV-SERIES DESIGN MANUAL

FIGURE 17: Possible Damper Coupling Locations

		Zone 3 End Vent
		Zone 2 End Vent
	Zone 3	Pump Damper
		Zone 3 Damper Coupling
	Zone 1 End Vent	Zone 2 Damper Coupling	Zone 2
	setting	Zone 1 Damper Coupling
Damper	NOTE: Damper will vary	1
Coupling		Zone
Damper
20

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Roberts Gorden CRV-B-2, CRV-B-8, CRV-B-6, CRV-B-4 service manual Possible Damper Coupling Locations

Contents

Gas-Fired, Low-Intensity Design ManualCoRayVac Custom EngineeredPage TABLE OF CONTENTS 2009 Roberts-GordonLLCPage TABLE OF FIGURES LIST OF TABLESPage SECTION 1 CONCEPT 2.2 Zero Regulator 2.1 SafetySECTION 2 THE CRV-SERIESSYSTEM 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 safetycentimeters FIGURE 2 STANDARD REFLECTORinches FIGURE 3 ONE SIDE REFLECTORcentimeters FIGURE 5 UNIVERSAL SHIELD, POSITIONinches inchesFIGURE 10 PROTECTIVE GRILLE FIGURE 8 2-FOOTDECO GRILLEFIGURE 9 BARRIER SHIELD inchesSECTION 4 SIZING AND DESIGN CONSIDERATIONS 4.1 Radiant Adjustment to Heat Loss4.2 Radiant Height Adjustment Factor 4.4.1 Radiant Distribution Average Coverage 4.3 Selecting the Burners4.4 Radiant Distribution 4.4.2 Radiant Distribution Increased CoverageFIGURE 11 Radiant Distribution Average Coverage FIGURE 13 Radiant Distribution Heavy CoverageSECTION 5 FLOW LOADING 5.1 Radiant Branch FlowB-10Burner #2 FIGURE 14 Burner Flow UnitsB-10Burner #1 B-10Burner #3FIGURE 15 Vacuum Loss Curve for 4 Shared 5.2 Pump Capacity5.3 Tailpipe Flow Tailpipe6.1.1 Minimum Radiant Tube Length SECTION 6 RADIANT TUBE AND TAILPIPE6.1 Radiant Tube Length 6.1.2 Maximum Radiant Tube LengthPump Model Series Maximum Loading FIGURE 16 Tube Length vs. Efficiency6.3 Design Parameters 6.4CRV-SeriesDesign MethodsAfter Each Burner 6.5.1 Rule of Thumb Unshared Calculations EXAMPLE 3 B-10Radiant Tube vs. Tailpipe Length6.5 Tailpipe Design Method System with EP-300Series Pump6.5.5 Damper Couplings FIGURE 17 Possible Damper Coupling Locations 7.1 Example System Layout Option SECTION 7 EXAMPLE CRV-SERIESSYSTEM LAYOUTSFIGURE 18 Example System Layout Option FIGURE 20 Example System Layout Option FIGURE 19 Example System Layout Option7.2 Example System Layout Option 7.3 Example System Layout Option7.4 Example System Layout Option FIGURE 21 Example System Layout OptionFIGURE 22 Example System Layout Option 7.5 Example System Layout OptionFIGURE 24 Example System Layout Option FIGURE 23 Example System Layout Option7.6 Example System Layout Option FIGURE 25 Example System Layout OptionFIGURE 26 Example System Layout Option 7.7 Example System Layout Option 7, 8 andSECTION 8 CONTROL METHODS Disconnect electric before service or maintenanceTurn off gas supply to heater before service Electrical Shock Hazard8.4 DPST Transformer Relay P/N 8.5 Pressure Switch8.3 SPST Transformer Relay P/N 90417600K 9.2 Non-Pressurized SECTION 9 AIR SUPPLY SYSTEM9.1 Pressurized 9.3.2 Pressurized SystemsBlower P/N 90707501 Performance 112 Flow Units 9.3.3 Pipe sizingDuct Design Rules FIGURE 28 Outside Air BlowerBranch C Branch ABranch B Page 11.2Equipment 11.2.1 Burner SECTION 11 CRV-SERIESEQUIPMENT SPECIFICATIONS11.1 Burner and Burner Controls 11.2.2 PumpPage the side Maintainclearance clearance below