Roberts Gorden CTU 22 TO 115 service manual Troubleshooting For Automatic Ignition Burner Systems

Page 39

 

 

 

SECTION 15: TROUBLESHOOTING

15.2 Troubleshooting For Automatic Ignition Burner Systems

 

 

There are two burner controls used: Honeywell S4563C and

 

 

 

 

 

 

WARNING

 

S4565C. They both have similar operating sequences. To

 

 

measure flame current, connect a 0 - 50 μA DC meter in

 

 

 

 

 

 

 

 

series with the flame probe. If the meter reads negative

 

 

values, then reverse the test leads.

 

 

 

 

 

Electrical Shock Hazard

Start

 

 

Do not touch ignition components.

 

 

 

Are gas & electrical

 

 

Voltage from ignition components is high.

No

Turn on supplies.

 

supplies on?

Failure to follow these instructions can

 

 

 

 

 

result in death or electrical shock.

Yes

 

 

 

 

 

 

 

 

Has the thermostat limit

 

 

 

 

Is the green light on?

No

Are external controls on?

Yes

thermodisc operated or light

faulty? Reset or replace as

 

 

 

 

 

 

 

 

necessary.

Yes

 

 

 

 

 

 

 

Press in lockout reset button

 

 

 

Is red lockout light on?

Yes

on rear of heater or remote

 

 

 

 

 

reset button if fitted.

 

 

 

No

 

 

 

 

 

Does flue fan run?

No

 

Yes

 

Does air pressure switch

No

change over?

 

Yes

Wait 30 - 40 seconds.

Is ignition spark operating? No

Yes

 

Does the flame light?

No

Yes

 

Is red lockout light on?

Yes

Is 230 V supply at fan

Yes

connections?

 

No

Burner control faulty or plug in connections faulty. Repair or replace as necessary

Check for too much flue/air inlet

duct. Check for blockage in

combustion air circuit.

Check for faulty air pressure

switch. See section 16.5.

Is HT lead okay and

connected? Yes Is spark electrode okay?

Is the gas valve operating?

To test valve, No see Section 15.4.

Is the flame current at

least 1 µAmp DC when No the flame lights?

Flue fan faulty replace

Ignition control faulty replace.

See Section 15.6.

Replace valve.

Trace fault in supervision system. See Section 16.3.

No

Heater Operating

TROUBLESHOOT ENDS. No

If problems persist, contact

For your safety and optimum heater performance,

use only ROBERTS GORDON® replacement parts.

ROBERTS GORDON® at

Conduct Commissioning procedure as shown

Tel: +44(0) 121 506 7709

www.rg-inc.com

on Page 24, Section 11.

33

Page 38 Page 40
Image 39
Page 38 Page 40
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 GeneralFlue Installation 6.1 Flue Installation Type B22 ApplianceAir Intake Terminal Cover Vertical and Horizontal Flue Termination Type B22 Appliance AIR Supply Optional Heater Configurations Distribution Duct Work for CTUB, Ctuc and Ctud HeatersCtud 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 SequenceCombustion Testing Check Gas RateTurning Off the Heater External Controls Complete the CommissioningInstruction to the User Lighting Instructions To Turn On Heater Burner Lockout Reset ButtonHeater Operation Common User Controls Thermostat Limit ThermodiscSimple Fault Finding Simple Fault Finding Burner FaultsTo Turn the Heater Off Gas Control Valve Maintenance Burner Maintenance13.3 Fan/Motor Assembly Maintenance Heat Exchanger MaintenanceConversion Between Gases 14.1 General Burner ConversionGas Valves Start Conduct Commissioning procedure as shown on Page 24, SectionTroubleshooting For Automatic Ignition Burner Systems For your safety and optimum heater performanceConduct 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.
Top Page Image Contents