Roberts Gorden CTU 22 TO 115 service manual Removal and Replacement Parts

Page 41

SECTION 16: REMOVAL AND REPLACEMENT PARTS

SECTION 16: REMOVAL AND REPLACEMENT PARTS

See warnings and notes on Page 30, Section 13 before removing or replacing parts.

Burner Components

All serviceable burner parts are accessed by the door on the right side of the heater. Use a screwdriver to turn the latch 90°. See Page 5, Section 4.

16.1 Gas Valve

Remove the gas supply pipe at the heater inlet.

16.1.1 Models 22 - 60

Remove fixing screw

Disconnect

wire harness

Unplug

control

from

valve

Ignition

Control

Description

Part Number

Gas Valve VR4105A

90033403

Ignition Control

90434010

16.1.2 Models 75 - 115

Unplug

electrical lead.

(rectifier harness)

Description

Part Number

Gas Valve VR4605

90033404

Ignition Control

90434020

Step 1

Unscrew gas pipe from the valve inlet.

Ignition

Control

Step 2

Unscrew valve from the

burner manifold

or

unscrew the fixing screws for the inlet and outlet flanges.

16.1.3 All Models

Replace in reverse order. Verify that the gas flow direction of the valve is correct. Use a minimum amount of gas seal on the thread joint. Re-use the "O" ring seal in the outlet flange where fitted. Check that all the joints are leak free. Reset gas valve. See

Page 26, Section 11.4.2.

IT IS IMPORTANT THAT ONLY THE CORRECT GAS VALVES SPECIFIED FOR EACH MODEL TYPE ARE USED WHEN REPLACING THESE CONTROLS.

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Contents Supplier after leaving the building Immediately call your local gasFollow the gas supplier’s Instructions Supplier, call the Fire DepartmentPage 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 ClearancesVentilation Gas SupplyInstallation Clearances and Clearances to Combustibles Dimension Data Ctua All Models Specifications 4.1 CtuaTop View End View Rear 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 GeneralAir Intake Terminal Cover Flue Installation 6.1 Flue InstallationType B22 Appliance Vertical and Horizontal Flue Termination Type B22 Appliance AIR Supply Ctud Heaters Optional Heater ConfigurationsDistribution Duct Work for CTUB, Ctuc and Ctud Heaters Connections GAS PipingOption a Option BWiring 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 Louvres CommissioningElectrical Checks Mechanical ChecksEnd View Automatic Burner Control Box SequenceTurning Off the Heater Combustion TestingCheck Gas Rate Instruction to the User External ControlsComplete the Commissioning Heater Operation Burner Lockout Reset ButtonCommon User Controls Thermostat Limit Thermodisc Lighting Instructions To Turn On HeaterTo Turn the Heater Off Simple Fault FindingSimple Fault Finding Burner Faults 13.3 Fan/Motor Assembly Maintenance Burner MaintenanceHeat Exchanger Maintenance Gas Control Valve MaintenanceGas Valves Conversion Between Gases 14.1 GeneralBurner Conversion Start Conduct Commissioning procedure as shown on Page 24, SectionConduct Commissioning procedure as shown Troubleshooting For Automatic Ignition Burner SystemsFor your safety and optimum heater performance 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 SwitchFan Removal and Replacement Ctua Axial Fan/Guard/Motor AssemblyTo Replace the Fan Assembly Ctub & Ctuc Centrifugal Fan/Guard/Motor 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.