Roberts Gorden CTCU 27, CTCU 15, CTCU 11 Ignition Control, Ctcua Axial Fan/Guard/Motor Assembly

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SECTION 15: REMOVAL AND REPLACEMENT PARTS

15.6 Ignition Control

The control plugs onto the gas valve. Pull out 12 pin electrical connection. Pull out ignition cable and flame probe cable noting their positions

Release screw securing control to gas valve. Refit in reverse. Ensure correct location of ignition and flame probe cables. Ensure that the earth connection is made directly to the earth point on the gas valve.

15.7 CTCUA Axial Fan/Guard/Motor Assembly

The axial fan unit for the CTCUA heater is supplied completely assembled and balanced.

15.7.1 Fan Removal and Replacement

Remove the screws

and washers.

15.8Fan and Limit Thermostats 15.8.1 Removal and Replacement

1. Pull off the electrical connections to the thermostat

2.Unscrew the two screws securing the thermostat

3.Fit a new thermostat with two screws ensuring that the correct temperature setting and type are selected.

See Page 6, Section 4.3.

4.Reconnect the electrical connections and test operation.

Description

Part Number

Axial Fan CTCU-7

11111910

Axial Fan CTCU-11

11111911

Axial Fan CTCU-15

11111920

Axial Fan CTCU-22

11111921

Axial Fan CTCU-27/32

11111922

15.7.2 To Replace the Fan Assembly

To replace the fan assembly, reverse the procedure shown above. Fit rubber washers to the guard mountings to reduce vibration.

Check that the fan blades are free to rotate before turning on the power to the fan.

Strictly comply with the colour code of the fan wires to ensure correct operation. See Page 14, Section 9.3 wiring diagram.

Use only genuine ROBERTS GORDON® replacement parts.

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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 Burner Faults Simple Fault FindingTo Turn the Heater Off 12.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Gas Control Valve MaintenanceBurner Conversion Conversion Between Gases 13.1 GeneralGas 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 ValvesBurner Components Removal and Replacement PartsGas 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.