Roberts Gorden CTU 22 TO 115 service manual Burner Compartment, Burner Injectors

Page 42

COMBAT® CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL

16.2 Burner Compartment

The burner compartment is a sealed compartment. Following any work, re-seal the compartment with the gas pipe rubber seal fully in place and all screws fitted and tight.

Burner

compartment

cover

Flame probe

Viewing port

for flame probe

Remove flexible

air duct from spigot

Ignition electrode

Viewing port

for ignition electrode

Remove

access plate Rubber Seal

Remove screws and pull off burner cover

16.2.1 Burner Injectors

Ensure gas tight fitting of injectors.

Ensure correct alignment with burners.

Ensure all pipe joints are gas tight.

Manifold

Burners

 

 

 

Remove manifold

 

 

screws and pull

Injectors

 

out manifold

 

Manifold

Unscrew

Injectors

Burner venturi

Burner Screws

Marking

MODEL

CTU-22

CTU-30

CTU-35

 

CTU-40

CTU-50

CTU-60

CTU-75

CTU-90

CTU-100

CTU-115

 

 

 

 

 

 

 

 

 

 

 

 

Injector Quantity

5

5

6

 

7

9

11

12

14

15

17

 

 

 

 

 

 

 

 

 

 

 

 

Natural Gas (G20) and (G25)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Injector size mm Ø

2.08

2.25

2.25

 

2.25

2.25

2.25

2.71

2.71

2.71

2.71

 

 

 

 

 

 

 

 

 

 

 

 

in Ø

0.0819

0.0886

0.0886

 

0.0886

0.0886

0.0886

0.1067

0.1067

0.1067

0.1067

 

 

 

 

 

 

 

 

 

 

 

 

Marking

45

225

225

 

225

225

225

36

36

36

36

 

 

 

 

 

 

 

 

 

 

 

 

RG P/N

91930045

91930225

91930225

 

91930225

91930225

91930225

91930036

91930036

91930036

91930036

 

 

 

 

 

 

 

 

 

 

 

 

LPG Gas Propane (G31) and LPG Gas Butane (G30)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Injector size mm Ø

1.25

1.40

1.40

 

1.40

1.40

1.35

1.51

1.51

1.51

1.51

 

 

 

 

 

 

 

 

 

 

 

 

in Ø

0.0492

0.0551

0.0551

 

0.0551

0.0551

0.0531

0.0594

0.0594

0.0594

0.0594

 

 

 

 

 

 

 

 

 

 

 

 

Marking

125

54

54

 

54

54

135

53

53

53

53

 

 

 

 

 

 

 

 

 

 

 

 

RG P/N

91930125

91930054

91930054

 

91930054

91930054

91930135

91930053

91930053

91930053

91930053

 

 

 

 

 

 

 

 

 

 

 

 

36

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Contents Follow the gas supplier’s Instructions Immediately call your local gasSupplier after leaving the building Supplier, call the Fire DepartmentPage Roberts-Gordon, LLC Page Table of Figures Page Product Approval Clearances to Combustibles Heater SafetyInstaller Responsibility Corrosive ChemicalsVentilation Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Gas SupplyInstallation Clearances and Clearances to Combustibles Top View Specifications 4.1 CtuaDimension Data Ctua All Models End View Rear ViewDimension Data CTUB, Ctuc and Ctud CTUB, Ctuc and CtudGeneral Technical Data Table Gas rates corrected to standard conditions 1013.25 mbar 15 C Heater Installation 5.1 General HandlingFlue 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 a GAS PipingConnections Option BWiring and Electrical Information Ctua Wiring Diagram Models 50 HzSite Wiring Site Wiring CTUB/C Wiring Diagram ModelsIgnition Module 230 V 1 Ø 50 HzRUN Ctud Wiring Diagram Models For external fan wiringSite Wiring and Electrical Information Electrical Checks CommissioningLouvres Mechanical ChecksAutomatic Burner Control Box Sequence End ViewCombustion Testing Check Gas RateTurning Off the Heater External Controls Complete the CommissioningInstruction to the User Common User Controls Thermostat Limit Thermodisc Burner Lockout Reset ButtonHeater Operation Lighting Instructions To Turn On HeaterSimple Fault Finding Simple Fault Finding Burner FaultsTo Turn the Heater Off Heat Exchanger Maintenance Burner Maintenance13.3 Fan/Motor Assembly Maintenance Gas Control Valve MaintenanceConversion Between Gases 14.1 General Burner ConversionGas Valves Conduct Commissioning procedure as shown on Page 24, Section StartTroubleshooting For Automatic Ignition Burner Systems For your safety and optimum heater performanceConduct Commissioning procedure as shown Troubleshooting for Flame Supervision System Troubleshooting for Solenoid ValvesRemoval and Replacement Parts Burner Compartment Burner InjectorsIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter Pressure Switch RG P/NTo Replace the Fan Assembly Ctua Axial Fan/Guard/Motor AssemblyFan Removal and Replacement Ctub & Ctuc Centrifugal Fan/Guard/Motor AssemblyCentrifugal Fan Orientation Fan DataPage 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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