Roberts Gorden CTCU 7, CTCU 27 AIR Supply, Room Sealed Installation, Open Flued Installation

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SECTION 7: AIR SUPPLY

SECTION 7: AIR SUPPLY

7.1 Room Sealed Installation

When installed as a room sealed heater, the air for combustion is drawn in from outside the building. It is important to ensure that there is adequate ventilation to provide air for the distribution fan.

7.2 Open Flued Installation

It is important to ensure that there is adequate air supply at all times for both combustion and heating requirements in accordance with local and national codes.

7.2.1 Heaters Installed Within the Heated Space

Where the volume of the heated space is greater than 4.7 m3 per kilowatt of total rated heat input and the air change rate is at least 0.5/h, additional high and low level ventilation will not be required.

For a building having an air change rate less than 0.5/h, ventilation will be necessary in accordance with local and national codes. Ventilation direct to outside must be provided as follows:

Heaters up to 70 kW heat input 5.0 cm2 per kW of rated heat input

7.3 Building Ventilation

Where ventilation is required, air must be taken from an outside point where it is not likely to be contaminated or obstructed.

Where natural ventilation is used, suitable ventilation with outside air at low level must be provided in accordance with Section 7.2.1 and local and national codes.

Where mechanical ventilation is used, extract rate must be 5% - 10% less than the inlet rate. The mechanical ventilation must be interlocked with the burner on the CTCU heater.

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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 ThermostatTo Turn the Heater Off Simple Fault FindingSimple Fault Finding Burner Faults 12.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Gas Control Valve MaintenanceGas Valves Conversion Between Gases 13.1 GeneralBurner Conversion 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 ValvesGas Valve Removal and Replacement PartsBurner Components 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.