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This document provides installation and servicing instructions for the Logic System boiler.
Details installation changes implemented from Mod Level A04 to A05.
Details required for completing the Benchmark commissioning checklist.
Overview of the Logic System boiler features, capabilities, and safe handling.
Lists available accessories and kits for the boiler.
Outlines safety regulations and requirements for boiler placement.
Details requirements and considerations for the gas supply connection.
Provides guidance on flue installation and terminal positioning.
Details air supply, water circulation, boiler controls, electrical supply, and condensate drain.
Specifies boiler dimensions and necessary clearances for installation and servicing.
Outlines system requirements for central heating installation, including pressure and vessel sizing.
Instructions for balancing the heating system.
Details recommended water treatment products and procedures.
Visual representation of boiler components and their part numbers.
Instructions for unpacking the boiler and checking contents.
Step-by-step guide for removing the boiler's front panel.
Using the template and preparing the wall for boiler mounting.
Steps for fitting the wall plate and mounting the boiler.
Guidance on selecting the correct flue length and packs.
Continues flue length calculations and pack selection.
Instructions for cutting and setting flue lengths for various kits.
Detailed steps for fitting the flue through the wall and the flue turret.
Guidance on installing optional roof flue kits.
Requirements for positioning flue terminals safely and to avoid nuisance.
Steps for assembling the roof flue kit components.
Details on the condensate trap system and pipework requirements.
Further details and diagrams for condensate drain connections.
Instructions for water, gas connections and system filling.
Details on boiler internal wiring and frost thermostat wiring.
Steps for mains cable replacement and wiring external controls.
Schematic diagram of the boiler's electrical wiring.
Procedures for commissioning and testing the boiler's operation.
Step-by-step guide for lighting the boiler for the first time.
Checks to perform for correct operation of the boiler.
Instructions on how to reset the boiler after a fault.
Installer's responsibilities when handing over the boiler to the customer.
Recommended schedule and general notes for servicing the boiler.
Requirements for personnel performing combustion checks.
Steps for removing and refitting the boiler's front panel.
Instructions for removing and cleaning the fan and venturi assembly.
Steps for removing and cleaning the boiler's burner.
Procedure for cleaning the condensate trap or siphon.
Instructions for cleaning the heat exchanger.
Step-by-step guide for reassembling the boiler after servicing.
General guidance on replacing boiler components.
Detailed instructions for replacing the fan assembly.
Steps for replacing the burner injector.
Instructions for replacing the boiler's burner.
Guide to replacing the return thermistor.
Steps for replacing the ignition electrode.
Instructions for replacing the flame detection electrode.
Steps for replacing the spark generator.
Guide to replacing the gas control valve.
Instructions for replacing the condensate trap/siphon.
Steps for replacing the main printed circuit board (PCB).
Instructions for replacing the user control PCB.
Procedure for draining the boiler's central heating circuit.
Steps for replacing the pressure gauge.
Instructions for replacing the safety relief valve.
Guide to replacing the pump's automatic air vent.
Steps for replacing the boiler's pump head.
Instructions for replacing the CH water pressure sensor.
Steps for replacing the control/no flow thermistor.
Comprehensive guide to replacing the heat engine assembly.
Procedures for recharging and replacing the expansion vessel.
Steps for replacing the boiler sealing panel seal.
Overview of fault codes and corresponding troubleshooting frames.
Troubleshooting steps for overheat or no water flow faults.
Troubleshooting steps for ignition lockout faults.
Troubleshooting steps for false flame lockout.
Troubleshooting steps for low water pressure faults.
Troubleshooting steps for flame loss faults.
Troubleshooting thermistor, sensor, and BCC faults.
Troubleshooting steps when there is no central heating operation.
Troubleshooting steps when the display is not working.
Troubleshooting steps when there is no hot water.
Information on ordering and identifying spare parts.
Guidelines for installers regarding installation, commissioning, and servicing.
Guidelines for customer service and communication.
Requirements for boiler installation, commissioning, and servicing.
Checklist for commissioning the gas boiler system.
Forms for recording service history of the heating system.
Flowchart for checking CO level and combustion ratio during commissioning.
Explanation of boiler operation modes, controls, and features.
Steps to reset the boiler after a fault.
Overview of the Logic System boiler and required clearances.
Instructions for lighting the boiler.
Instructions for dealing with condensate pipe blockages or freezing.
Actions for gas leaks and basic cleaning procedures.
Recommendation for annual servicing.
Steps to troubleshoot lack of central heating.
Steps to troubleshoot lack of hot water.
Table showing boiler display codes and their descriptions.
Table listing fault codes and recommended actions.
General| Output | 18 kW |
|---|---|
| Dimensions (H x W x D) | 600 x 400 x 300 mm |
| Weight | 28.8 kg |
| Efficiency | 89.6% |
| Fuel Type | Natural Gas |
| Central Heating Max Output | 18 kW |
| DHW Output | 18 kW |
| Warranty | 7 years |
| Boiler Type | System |
| Mounting | Wall-mounted |
| ERP Rating | A |
| CH Output | 18 kW |
| Max. Working Pressure | 3 bar |
