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User’s

THE BENCHMARK SERVICE INTERVAL RECORD MUST BE COMPLETED AFTER EACH SERVICE

Ideal Boilers

 is a member of the Benchmark scheme and fully supports the aims of the 

programme.  Benchmark has been introduced to improve the standards of installation and 

commissioning of central heating systems in the UK and to encourage the regular servicing of all 

central heating systems to ensure safety and efficiency.

All Gas Safe Register installers carry a Gas Safe Register ID card, and have a registration number.  Both should be recorded in the

Benchmark Commissioning Checklist.  You can check your installer by calling Gas Safe Register direct on 0800 4085500.

1. INTRODUCTION

The Logic Combi C IE range is a combination boiler providing both 

central heating and instantaneous domestic hot water.  Featuring 

full sequence automatic ignition and fan assisted combustion.

Due to the high efficiency of the boiler, condensate is produced from 

the flue gases and this is drained to a suitable disposal point through 

a plastic waste pipe at the base of the boiler.  A condensate ‘plume’ 

will also be visible at the flue terminal.

SAFETY

Current Gas Safety (Installation & Use) Regulations or 

rules in force.

In your own interest, and that of safety, it is the law that this 

boiler must be installed by a Gas Safe Registered Engineer, in 

accordance with the above regulations.
In IE, the installation must be carried out by a Registered Gas Installer 

(RGII) and installed in accordance with the current edition of I.S. 813 

“Domestic Gas Installations”, the current Building Regulations and 

reference should be made to the current ETCI rules for electrical 

installation.

It is essential that the instructions in this booklet are strictly 

followed, for safe and economical operation of the boiler.

ELECTRICITY SUPPLY

This appliance must be earthed.

Supply: 230 V ~ 50 Hz. The fusing should be 3A.

IMPORTANT NOTES

•  This appliance must not be operated without the casing 

correctly fitted and forming an adequate seal.

•  If the boiler is installed in a compartment then the compartment 

MUST NOT be used for storage purposes.

•  If it is known or suspected that a fault exists on the boiler then 

it MUST NOT BE USED until the fault has been corrected by 

a Gas Safe Registered Engineer or in IE a Registered Gas 

Installer (RGII).

 

Under NO circumstances should any of the sealed components 

on this appliance be used incorrectly or tampered with.

• 

T

his appliance can be used by children 8 years and 

above.

  

A

lso persons with reduced physical, sensory or 

mental capabilities, or lack of experience and knowledge, 

provided they have been given supervision or instruction 

concerning use of the appliance in a safe way and 

understand the hazards involved.  Children shall not play 

with the appliance.

  

Cleaning and user maintenance shall 

not be made by children without supervision.

CONTENTS

 

1.  Introduction

 

 .............................................................. 2

     Safety ......................................................................... 2
     Electricity Supply ........................................................ 2
     Important Notes .......................................................... 2

2.  Boiler Operation ....................................................... 3

     Controls Diagram........................................................ 3
     To Start the Boiler ....................................................... 3
     Operation Modes ........................................................ 3
     Preheat Domestic Hot Water ...................................... 3
     Control of Water Temperature .................................... 3

     Efficient Heating System Operation

............................ 4

     Weather Compensation .............................................. 4
     Boiler Frost Protection ................................................ 4
     Boiler Restart .............................................................. 4
     Mains Power Off ......................................................... 4

3.  System Water Pressure ........................................... 4

4.  Condensate Drain

 ..................................................... 5

5.  General Information ................................................. 5

     Boiler Pump ................................................................ 5

    

     Minimum Clearances .................................................. 5
     Expansion ................................................................... 5
     Escape of Gas ............................................................ 5
     Cleaning ..................................................................... 5
     Maintenance ............................................................... 5

6.  Points for the Boiler User

 ........................................ 6

     Troubleshooting .......................................................... 6

7.  Normal Operation Display Codes

 ........................... 7

8.  Fault Codes

 ............................................................... 8

Summary of Contents for LOGIC COMBI C Series

Page 1: ...quire Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Boilers 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 April 2019 UIN 222357 A01 USER GUIDE LOGIC COMBI C24IE C30IE C35IE ...

Page 2: ...ules for electrical installation It is essential that the instructions in this booklet are strictly followed for safe and economical operation of the boiler ELECTRICITY SUPPLY This appliance must be earthed Supply 230 V 50 Hz The fusing should be 3A IMPORTANT NOTES This appliance must not be operated without the casing correctly fitted and forming an adequate seal If the boiler is installed in a c...

Page 3: ...frost protection see Frost Protection PREHEAT DOMESTIC HOT WATER The domestic hot water heat exchanger within the boiler can be kept preheated to provide faster delivery of hot water at the tap This is achieved by pressing the PREHEAT button F so that HOT WATER PREHEAT ON is shown on the display The boiler will operate periodically for a few seconds to maintain the domestic hot water heat exchange...

Page 4: ...ards the MAX position to meet heating requirements This will depend on the house and radiators used Reducing the room thermostat setting by 1ºC can reduce gas consumption by up to 10 WEATHER COMPENSATION When the Weather Compensation option is fitted to the system then the central heating temperature knob B becomes a method of controlling room temperature Turn the knob clockwise to increase room t...

Page 5: ...n when using warm water as this may freeze and cause other localised hazards 4 Once the blockage is removed and the condensate can flow freely restart the appliance Refer to To Start the boiler 5 If the appliance fails to ignite call your Gas Safe Registered engineer Preventative solutions During cold weather set the central heating temperature knob B to maximum must return to original setting onc...

Page 6: ...he time settings on the programmer are as you require and adjust if necessary Check the programmer internal or external to the boiler is in an ON position and the room thermostat is turned up NO HOT WATER OR CENTRAL HEATING Check the mains power is turned on and ensure mode knob C is in the winter position See boiler Operation Modes and Fault Codes section Does the boiler have a display showing on...

Page 7: ...l heating mode The boiler is operating in domestic hot water preheat mode The boiler is operating in domestic hot water mode The boiler is operating in frost protection 7 NORMAL OPERATION DISPLAY CODES FOR ANY QUERIES PLEASE RING THE IDEAL CONSUMER HELPLINE 01482 498660 NOTE BOILER RESTART PROCEDURE To restart the boiler press the RESTART button The boiler will repeat the ignition sequence if a he...

Page 8: ...sent in the property 2 If other appliances do not work or there are no other appliances check the gas supply is on at the meter and or pre payment meter has credit If the boiler fails to operate then please contact Ideal if under warranty or alternatively a Gas Safe Registered Engineer if outside of the warranty period In IE contact a Registered Gas Installer RGII 1 Check condensate Pipe for block...

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