Roberts Gorden CTCU 11, CTCU 27 Critical Considerations 3.1 Basic Information, Flue, Ventilation

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SECTION 3: CRITICAL CONSIDERATIONS

SECTION 3: CRITICAL CONSIDERATIONS 3.1 Basic Information

CTCU heaters have automatic ignition burners for ON/OFF operation only.

3.2Location and Suspension All models:

• Must be installed indoors.

Must be installed in a level position with horizon- tal or vertical discharge.

May be mounted on a shelf of non-combustible material. (See Page 5, Section 4 and Page 7, Figure 2 for support points.)

May be suspended from above (See Page 7, Fig- ure 2) or from wall brackets of sufficient strength to support the heater as listed in the Dimension Data Table on Page 5, Section 4.1. Drop rods must be a minimum of 10 mm diameter mild steel. Four suspension points (M10 nuts) are located on top and back side of the heater.

Must be installed in a manner which allows access to all serviceable components.

3.8 Flue

Choose heater siting to allow for the proper location of the flue. Each heater must be fitted with an individual and correctly sized sealed flue system (See Page 9, Section 6).

No other appliance may be connected to the flue. For room sealed installation, the air intake must be the same size sealed system and the flue/air intake must terminate at an approved concentric wall or roof terminal.

3.3 Minimum Required Installation Clearances

Clearances around the heater and flue must be as indicated on Page 4, Figure 1; Page 9, Figure 5 through Page 10, Figure 7 to ensure access for servicing, and correct operation.

3.4 Clearances to Combustibles

Clearances must be as indicated on Page 4, Figure 1. If clearances to combustibles are not indicated, then installation clearances apply.

3.5 Ventilation

It is important to ensure that there is adequate air circulation around the heater to supply air for combustion, ventilation and distribution in accordance with local and national codes.

3.6 Gas Supply

It is important that the gas supply pipe is sized correctly to provide the inlet pressure as stated on the heater data plate. The gas supply pipe and electrical connections must not support any of the heater's weight.

3.7 Electrical Supply

A permanent 230 V 50 Hz 1 Ø electrical supply is required at the main electrical terminals. The heater also requires suitable energy controls in accordance with Section 9.

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Contents Mbat Page Roberts-Gordon, LLC Page Table of Figures Page Product Approval Installer Responsibility Heater SafetyClearances to Combustibles Corrosive ChemicalsCritical Considerations 3.1 Basic Information Minimum Required Installation ClearancesFlue VentilationInstallation 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 Flue Installation Flue InstallationChanging Flue and Air Intake Orientation Type B22 ApplianceVertical and Horizontal Flue Termination Type B22 Appliance Open Flued Installation Room Sealed InstallationHeaters Installed Within the Heated Space AIR SupplyConnections GAS PipingRemote Controls Wiring and Electrical InformationBurner Controls Thermostat Remote Fan ControlsCtcua Wiring Diagram Models 7 Site WiringLouvres CommissioningMechanical Checks Begin Commissioning Before Operating the HeaterAutomatic Burner Control Box Sequence Pressure Switch Combustion TestingCheck Gas Rate Turning Off the HeaterHeater Operation Burner Lockout Reset ButtonCommon User Controls 11.3.1 Fan Thermostat Limit ThermostatSimple Fault Finding Simple Fault Finding Burner FaultsTo Turn the Heater Off 12.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Gas Control Valve 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 Fan Removal and Replacement Ctcua Axial Fan/Guard/Motor AssemblyFan and Limit Thermostats 15.8.1 Removal and Replacement To Replace the Fan AssemblyPage 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.