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iNSTALLATioN
AND SERViciNg
Logic+ SYSTEM
15 18 24 30
For Users Guide see reverse of book
When replacing any part on this appliance, use only spare parts that you can be
assured conform to the safety and performance specification that we require.
Do not use reconditioned or copy parts that have not been clearly authorised by Ideal.
For the very latest copy of literature for specification and maintenance practices visit our
website www.idealboilers.com where you can download the relevant information in PDF format.
May 2015
UIN 212122 A01

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Summarization of Contents

GENERAL
INTRODUCTION
Boiler description and overview.
OPERATION
Explanation of how the boiler functions.
SAFE HANDLING
Important precautions for safely moving the boiler.
SAFETY
Gas Safety Regulations
Compliance with gas safety installation rules.
Boiler Location Requirements
Guidelines for selecting a suitable boiler installation location.
GAS SUPPLY
Flue Installation Requirements
Guidelines and regulations for flue system installation.
TERMINAL SYSTEMS
Electrical Supply Requirements
Details on connecting the boiler to mains power.
Condensate Drain System
How to install and manage condensate drainage.
BOILER DIMENSIONS AND CLEARANCES
Installation Clearances
Minimum space requirements for servicing and operation.
SYSTEM REQUIREMENTS - CENTRAL HEATING
System Filling Procedure
Step-by-step guide for filling the heating system.
SYSTEM BALANCING AND WATER TREATMENT
Water Treatment Recommendations
Recommended products and procedures for system water treatment.
UNPACKING CONTINUED
Front Panel Removal
Instructions on how to remove the boiler's front panel.
WALL MOUNTING AND PREPARATION
Preparing the Wall for Installation
Steps to prepare the wall surface for mounting.
Mounting the Boiler
Process of attaching the boiler to the plate.
INSTALLING THE FLUE
Fitting Flue Through the Wall
Guidance on installing the flue via a wall opening.
CONNECTIONS AND FILLING
Gas Connection Procedure
Steps for connecting the gas supply.
System Filling Procedure
Steps for filling and venting the system.
ELECTRICAL CONNECTIONS
Internal Wiring Diagrams
Boiler's internal wiring configurations.
COMMISSIONING AND TESTING
Electrical Installation Checks
Verifying electrical safety and connections.
Gas Installation Checks
Inspecting and testing the gas supply and installation.
GENERAL CHECKS
Central Heating Mode Checks
Verifying the operation of central heating.
HANDING OVER TO THE HOUSEHOLDER
Handover Procedures to Householder
Explaining boiler operation and user responsibilities.
SERVICING SCHEDULE
Pre-Service Inspection
Initial checks before performing maintenance.
Combustion Performance Checks
Requirements for combustion analysis during servicing.
CLEANING THE HEAT EXCHANGER
Boiler Reassembly Procedure
Steps for reassembling the boiler after servicing.
REPLACEMENT OF COMPONENTS
Fan Replacement
Detailed guide on how to replace the boiler fan.
USER CONTROL PCB REPLACEMENT
Draining the Boiler Circuit
Steps to drain the central heating circuit.
PUMP HEAD REPLACEMENT
CH Water Pressure Switch Replacement
How to replace the central heating pressure switch.
FALSE FLAME LOCKOUT
Low Water Pressure Faults
Troubleshooting low water pressure issues.
Flame Loss Troubleshooting
Diagnosing and fixing flame loss faults.
CONTROL / NO FLOW THERMISTOR FAULT
Return Thermistor Fault
Troubleshooting return thermistor issues.
BCC Fault (Boiler Chip Card)
Troubleshooting issues related to the BCC.
NO CENTRAL HEATING OPERATION
No Display Fault
Troubleshooting steps when the display shows no output.
No Hot Water Fault
Diagnosing and resolving issues with hot water supply.
CODE OF PRACTICE
Installer Standards of Work
Requirements for competent installation work.
Customer Service Standards
Expectations for customer interaction and service.
FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO CHECK
Preliminary Information for Checks
Essential notes before performing combustion checks.
Setting to Minimum Rate
Procedure to set the boiler to its minimum output.

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