Roberts Gorden CTU 22 TO 115 service manual Optional Heater Configurations, Ctud Heaters

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SECTION 8: OPTIONAL HEATER CONFIGURATIONS

SECTION 8: OPTIONAL HEATER CONFIGURATIONS

8.1Distribution Duct Work for CTUB, CTUC and CTUD Heaters

CTUC heaters have the fans enclosed so that the heater may be connected to inlet ducting.

CTUD heaters are supplied with inlet and outlet duct spigots for mounting the heater into a customer designed duct system for use with an external fan system.

It is recommended that flexible duct connectors are used to reduce duct born noises.

When installing CTUD heaters onto ducting force the fan to run.

Do not rely on the fan thermostat to turn it on. Any such device must be in parallel with the fan thermostat so that the fan run-on operation will still operate.

Contact Roberts-Gordon Europe Ltd. Design Department for recommendations regarding duct resistance and design. Tel: +44 (0) 121 506 7700

8.1.1 CTUD Heaters

For CTUD heaters, it is essential that the airflow in the duct system is at least that specified in the Data Sheet on Page 6, Section 4.2 and in the correct direction across the heat exchanger as indicated by the arrow on the heater. Higher air flows are permitted, but will cause a lower exiting air temperature. It is recommended that the fan is positioned to blow the air through the heat exchanger.

The duct must be designed as described on Page 13, Section 8.1 and Figure 8 to ensure that there is a homogenous air flow across the whole of the heat exchanger.

Failure to provide a suitable air flow properly distributed across the heat exchanger will reduce the life of the heat exchanger.

The fan motor, or its control, must contain a method of overload protection. When installed remote from the heater, the fan must be supplied via a local electrical isolator positioned and properly labeled to prevent inadvertent operation.

Figure 8: Ducting

NOTE: Duct size will be full size of inlet and outlet. All joints between the heater and duct work should be made as air tight as possible.

Airflow Indicator

Minimum-

Twice

Dimension

“X”

Minimum-

Twice

Dimension

“X”

Dimension

“X”

Ducting

Flexible Flange

Ducting

13

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Contents Supplier, call the Fire Department Immediately call your local gasSupplier after leaving the building Follow the gas supplier’s InstructionsPage Roberts-Gordon, LLC Page Table of Figures Page Product Approval Corrosive Chemicals Heater SafetyInstaller Responsibility Clearances to CombustiblesGas Supply Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information VentilationInstallation Clearances and Clearances to Combustibles End View Rear View Specifications 4.1 CtuaDimension Data Ctua All Models Top ViewCTUB, Ctuc and Ctud Dimension Data CTUB, Ctuc and CtudGeneral Technical Data Table Gas rates corrected to standard conditions 1013.25 mbar 15 C Handling Heater Installation 5.1 GeneralType B22 Appliance Flue Installation 6.1 Flue InstallationAir Intake Terminal Cover Vertical and Horizontal Flue Termination Type B22 Appliance AIR Supply Distribution Duct Work for CTUB, Ctuc and Ctud Heaters Optional Heater ConfigurationsCtud Heaters Option B GAS PipingConnections Option aWiring and Electrical Information 50 Hz Ctua Wiring Diagram ModelsSite Wiring CTUB/C Wiring Diagram Models Site Wiring230 V 1 Ø 50 Hz Ignition ModuleRUN For external fan wiring Ctud Wiring Diagram ModelsSite Wiring and Electrical Information Mechanical Checks CommissioningLouvres Electrical ChecksEnd View Automatic Burner Control Box SequenceCheck Gas Rate Combustion TestingTurning Off the Heater Complete the Commissioning External ControlsInstruction to the User Lighting Instructions To Turn On Heater Burner Lockout Reset ButtonHeater Operation Common User Controls Thermostat Limit ThermodiscSimple Fault Finding Burner Faults Simple Fault FindingTo Turn the Heater Off Gas Control Valve Maintenance Burner Maintenance13.3 Fan/Motor Assembly Maintenance Heat Exchanger MaintenanceBurner Conversion Conversion Between Gases 14.1 GeneralGas Valves Start Conduct Commissioning procedure as shown on Page 24, SectionFor your safety and optimum heater performance Troubleshooting For Automatic Ignition Burner SystemsConduct Commissioning procedure as shown Troubleshooting for Solenoid Valves Troubleshooting for Flame Supervision SystemRemoval and Replacement Parts Burner Injectors Burner CompartmentIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter RG P/N Pressure SwitchCtub & Ctuc Centrifugal Fan/Guard/Motor Assembly Ctua Axial Fan/Guard/Motor AssemblyFan Removal and Replacement To Replace the Fan AssemblyFan Data Centrifugal Fan OrientationPage Page Page Some objects can catch fire or explode when placed

CTU 22 TO 115 specifications

The Roberts Gordon CTU 22 TO 115 is a renowned unit heater designed to deliver efficient heating solutions in commercial and industrial settings. Known for its advanced features and robust design, this unit heater is ideal for applications where warmth and comfort are essential, such as warehouses, manufacturing facilities, and large retail spaces.

One of the main features of the CTU 22 TO 115 is its powerful heating capacity. With a range of output capabilities, it can effectively heat large areas, ensuring that employees and equipment remain comfortable during cold weather. The heater's output is adjustable, allowing for tailored heating solutions based on specific operational needs.

This model integrates several innovative technologies to enhance efficiency and performance. The use of advanced combustion technology ensures optimal fuel efficiency, which translates to lower energy costs and reduced environmental impact. The heater is available in both gas and oil configurations, providing versatility to accommodate different fuel sources depending on availability and preference.

In addition to its energy efficiency, the Roberts Gordon CTU features a compact design, making it suitable for installations in tight spaces. Its lightweight construction allows for easy installation and relocation, ensuring that businesses can quickly adapt to changing layout requirements. The unit is equipped with high-quality materials and a durable finish, contributing to its longevity and low maintenance needs.

Safety is a paramount concern in any heating system, and the CTU 22 TO 115 doesn't disappoint. It comes with various safety features, including over-temperature protection, ensuring that it operates securely under all conditions. With automatic shutoff capabilities, the heater provides peace of mind to operators, allowing for unattended operation in more remote settings.

Moreover, the CTU’s quiet operation is a significant advantage, as it minimizes disruption in the workplace, ensuring a comfortable environment for personnel. Its design also facilitates easy access to components for maintenance, thus ensuring that the unit remains operational with minimal downtime.

Overall, the Roberts Gordon CTU 22 TO 115 combines performance, efficiency, and safety features to create a reliable heating solution for diverse industrial applications. Its adaptability to various fuel types and efficient design makes it a popular choice among facility managers looking for dependable heating solutions.
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