Roberts Gorden CTCU 11 Conversion Between Gases 13.1 General, Burner Conversion, Gas Valves

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SECTION 13: CONVERSION BETWEEN GASES

SECTION 13: CONVERSION BETWEEN GASES 13.1 General

Conversion between gases will require a change of burner injectors and the gas valve re-commissioning to the new conditions.

13.2 Burner Conversion

Conversion of the burner assembly from one gas to the other is the same for all types of heaters.

1.Remove the burner compartment cover as shown on Page 27, Section 15.2.

2.Remove the 4 screws holding the manifold and pull out the manifold.

3.Remove inshot burners by rotating them and sliding out the bracket.

4.Remove the main burner injectors.

5.Replace with the injectors for the new gas ensuring a gas tight seal.

6.Refit all components in reverse order.

13.3 Gas Valves

All gas valves used on the CTCU have pressure regulators that may be set to operate on natural gas or LPG.

Conversion is carried out by re-setting the burner pressure to the value in the data table during commissioning. See Page 6, Section 4.3. Ensure that the gas inlet pressure to the heater is correct for the new gas, and that the gas supply has been purged of the old gas.

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Contents Mbat Page Roberts-Gordon, LLC Page Table of Figures Page Product Approval Corrosive Chemicals Heater SafetyInstaller Responsibility Clearances to CombustiblesVentilation Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information FlueInstallation Clearances and Clearances to Combustibles Dimension Data Ctcua All Models Specifications 4.1 Ctcua All ModelsCTCU-7 CTCU-11 CTCU-15 CTCU-22 General Technical Data Table All ModelsShelf Mounting and Suspension Heater Installation 5.1 GeneralShelf Mounting and Hanging Suspension Type B22 Appliance Flue InstallationFlue Installation Changing Flue and Air Intake OrientationVertical and Horizontal Flue Termination Type B22 Appliance AIR Supply Room Sealed InstallationOpen Flued Installation Heaters Installed Within the Heated SpaceConnections GAS PipingRemote Fan Controls Wiring and Electrical InformationRemote Controls Burner Controls ThermostatCtcua Wiring Diagram Models 7 Site WiringBegin Commissioning Before Operating the Heater CommissioningLouvres Mechanical ChecksAutomatic Burner Control Box Sequence Turning Off the Heater Combustion TestingPressure Switch Check Gas RateLimit Thermostat Burner Lockout Reset ButtonHeater Operation Common User Controls 11.3.1 Fan ThermostatSimple Fault Finding Simple Fault Finding Burner FaultsTo Turn the Heater Off Gas Control Valve Maintenance Burner Maintenance12.3 Fan/Motor Assembly Maintenance Heat Exchanger MaintenanceConversion Between Gases 13.1 General Burner ConversionGas Valves Conduct Commissioning procedure as shown on Page 15, Section Turn on controls Troubleshooting For Automatic Ignition Burner SystemsStart Troubleshooting for Flame Supervision SystemTroubleshooting for Main Fan Troubleshooting for Solenoid ValvesRemoval and Replacement Parts Burner ComponentsGas Valve Burner Injectors Burner CompartmentIgnition Electrode and Flame Probe Flue Fan Vertical Installation 041 To Replace the Fan Assembly Ctcua Axial Fan/Guard/Motor AssemblyFan Removal and Replacement Fan and Limit Thermostats 15.8.1 Removal and ReplacementPage Page Some objects can catch fire or explode when placed
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CTCU 7, CTCU 22, CTCU 11, CTCU 15, CTCU specifications

Roberts Gorden offers a diverse range of high-performance make-up air units known as the CTCU series, which includes models CTCU 22, CTCU 15, CTCU 7, CTCU 27, and CTCU 11. Each model is designed to deliver efficient and reliable air management solutions for various industrial and commercial applications.

The CTCU 22 is renowned for its robust construction and powerful performance, providing exceptional air flow rates that can accommodate larger facilities. It features a high-efficiency heat exchanger and a multi-stage filtration system that ensures optimal indoor air quality while reducing energy consumption. This model is particularly beneficial for environments requiring high volumes of tempered air, making it ideal for manufacturing plants and warehouses.

CTCU 15, on the other hand, is slightly smaller yet offers remarkable versatility. With an integrated control system, it can easily adapt to changing operational demands, making it a preferred choice for businesses that experience variable occupancy levels. Its quiet operation minimizes workplace noise, and its energy-efficient design significantly cuts operational costs.

CTCU 7 is specifically engineered for smaller spaces without compromising performance. This unit features compact dimensions while still delivering adequate air flow for localized heating and ventilation needs. The advanced temperature control algorithms allow for precise adjustments, ensuring a comfortable environment even in tight areas.

CTCU 27 stands out with its advanced technology that includes integrated smart controls. This model offers real-time monitoring and data analytics to optimize performance and enhance energy efficiency. Its ability to connect with existing building management systems makes it an appealing choice for modern facilities aiming to improve sustainability initiatives.

The CTCU 11 is characterized by its user-friendly interface and maintenance accessibility. It is built with durable materials that extend its lifespan, ensuring long-term reliability. This unit is ideal for applications where regular maintenance is challenging, as its design allows for easy access to all critical components.

In summary, Roberts Gorden's CTCU series encompasses a range of units catered to various industrial needs. With features focusing on efficiency, flexibility, and user-friendliness, these models deliver high-quality air management solutions to improve indoor environments while reducing energy consumption.
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