Roberts Gorden CTHN-175, CTHN-200, CTHN-100, CTHN-40 National Standards and Applicable Codes

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SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES

SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES

4.1 Gas Codes

The type of gas appearing on the nameplate must be the type of gas used. Installation must comply with national and local codes and requirements of the local gas company.

United States: Refer to National Fuel Gas Code, ANSI Z223.1 - latest revision (same as NFPA 54).

Canada: Refer to CAN/CGA B149.1 and B149.2: Installation Codes for Gas Burning Appliances.

4.2 Aircraft Hangars

Installation in aircraft hangars must be in accordance with the following codes:

United States: Refer to Standard for Aircraft Hangars, ANSI/NFPA-409 - latest revision.

Canada: Refer to Standard CAN/CGA B149.1

and B149.2: Installation Codes for Gas Burning Appliances.

In aircraft storage and servicing areas, heaters shall be installed at least 10' (3 m) above the upper surface of wings or of engine enclosures of the highest aircraft which may be housed in the hangar. The measurement shall be made from the wing or engine enclosure (whichever is higher from the floor) to the bottom of the heater.

In shops, offices and other sections of aircraft hangars communicating with aircraft storage or servicing areas, heaters shall be installed not less than 8' (2.4 m) above the floor.

Suspended or elevated heaters shall be so located in all spaces of aircraft hangars that they shall not be subject to injury by aircraft, cranes, movable scaffolding or other objects. Provisions shall be made to assure accessibility to suspended heaters for recurrent maintenance purposes.

4.3 Public Garages

Installation in garages must be in accordance with the following codes:

United States: Standard for Parking Structures NFPA-88A - latest revision or the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA-30A - latest revision. Canada: Refer to CAN/CGA B149.1 and B149.2: Installation Codes for Gas Burning Appliances.

Heaters must not be installed less than 8' (2.4 m) above the floor. Minimum clearances to combustibles must be maintained from vehicles parked below the heater.

When installed over hoists, minimum clearances to combustibles must be maintained from the upper most point of objects on the hoist.

4.4 Electrical

The heater must be electrically grounded in accordance with the following codes:

United States: Refer to National Electrical Code®, ANSI/NFPA-70 - latest revision. Wiring must conform to the most current National Electrical Code®, local ordinances, and any special diagrams furnished.

Canada: Refer to Canadian Electrical Code, CSA C22.1 Part 1 - latest revision.

4.5 Venting

The venting must be installed in accordance with the requirements within this manual and the following codes:

United States: Refer to NFPA-54/ANSI Z223.1 - latest revision, National Fuel Gas Code.

Canada: Refer to CAN/CGA B149.1 and B149.2: Installation Codes for Gas Burning Appliances.

4.6 High Altitude

These heaters are approved for installations up to 2000' (610 m)(US), 4500' (1370 m)(Canada) without modification. Consult factory if US installation is above 2000' (610 m) or Canadian installation is above 4500' (1370 m).

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Contents Roberts-Gordon, LLC If you smell gasPage Roberts-Gordon, LLC Page Table of Figures Page Manpower Requirements Heater SafetyWall Tag Installer ResponsibilityCorrosive Chemicals National Standards and Applicable CodesInches Centimeters Combustibles at all times for safetyInches ONE Side ReflectorC D Unapproved ModelUnvented Inches Centimeters ModelNational Standards and Applicable Codes Heater Descriptions 5.1 Unitary vs. Multiburner Major Components Description General Suspension DetailsContents of Core and Extension Packages Venting Accessories Tubing and Related AccessoriesReflectors and Related Accessories Common CTHN-Series ComponentsUnitary Heater Design Requirements Unitary Heater RequirementsUnitary Linear Heater Layouts Linear Heater Assembly OverviewUnitary Linear Layout Overviews 60 18 m Tube Length 70 21 m Tube Length 80 24 m Tube Length Unitary U-tube Heater Layouts Tube Assembly OverviewUnitary U-tube Layout Overviews Tube Clamp Package Installation Burner Tube InstallationDescription Part Number Tube Clamp PackageCorrect Slide Bar Coupling and Tube AssemblyTurbulator Installation 2 Coupling and Tube AssemblyTurbulator Installation ModelHanger Burner Tube Reflector Reflector InstallationReflector Support Package Unitary Linear & U-TUBE Heater Installation11 Fan Inlet Plate and Warning Tag 10 Burner InstallationWith the flame observation 13 Fan Installation 12 Restrictor Plate InstallationModel Fan Assy. P/N Contents of Core and Extension Packages Component Package Guide Tubing Related AccessoriesMinimum Standard Aluminized 05221000 0522000002719105 02716305Multiburner System Design Requirements Typical Cthn Multiburner System InstallationBurners Per Pump Multiburner Design RequirementsNumber of Burners Allowed Per Pump Burner ModelManifold Tube Radiant Tube LengthManifold Diameter Multiburner System Layouts and Manifold Tube Length RulesFlag Layout Layout Fork Layouts and Manifold Tube Length RulesFork Layout Herringbone Layout Herringbone Layout and Manifold Tube Length RulesNut ± 2 5 cm 10 Turbulator Installation 11 Reflector Installation Clip 12 Burner Installation Elbow Package Configuration .1.1 Elbow Installation Optional Heater Accessories2 Elbow Installation 3 Reflector Joint Installation