Ideal C35, C24, C30 User Manual
USER GUIDE
LOGIC+ COMBI
C24 C30 C35
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 Boilers.
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where you can download the relevant information in PDF format.
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July 2018
UIN 215419 A07
CONTENTS
1. Introduction ................................................... 3
Safety .............................................................. 3
Electricity Supply ............................................. 3
Important Notes ............................................... 3
2. Boiler Operation ............................................ 4
Controls Diagram............................................. 4
To Start the Boiler ............................................ 4
Operation Modes ............................................. 5
Preheat Domestic Hot Water ........................... 5
Control of Water Temperature ......................... 5
Efcient Heating System Operation................. 6
Weather Compensation ................................... 6
Boiler Frost Protection ..................................... 6
Boiler Restart ................................................... 6
Mains Power Off .............................................. 6
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.
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 efciency.
THE BENCHMARK SERVICE INTERVAL RECORD MUST BE COMPLETED AFTER EACH SERVICE
3. System Water Pressure ................................ 7
4. Condensate Drain .......................................... 8
5. General Information ...................................... 9
Boiler Pump ..................................................... 9
Minimum Clearances ....................................... 9
Escape of Gas ................................................. 9
Cleaning .......................................................... 9
Maintenance .................................................... 9
6. Points for the Boiler User ........................... 10
Troubleshooting ..............................................11
7. Display Functions - Normal Operation ...... 13
8. Display Functions - Settings Changed ...... 13
9. Display Functions - Fault Messages..... 14-18
2
1. INTRODUCTION
The Logic + Combi C 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 efciency of the boiler, condensate is produced
from the ue 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 ue 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
• If the boiler is installed in a compartment then the
•
• Under NO circumstances should any of the sealed
•
3
correctly tted and forming an adequate seal.
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).
components on this appliance be used incorrectly or
tampered with.
This appliance can be used by children
8 years and above. Also 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.
2. BOILER OPERATION
MIN MAX MIN
MODE
e
BOILER
OFF
MAX
Legend
A.
Domestic Hot Water Temperature Knob
B. Central Heating Temperature Knob
C. Mode Knob
D. Boiler Status Display
E. Burner ‘on’ Indicator
F. Central Heating Economy Setting
G. Pressure Gauge
AG DE B F
C
TO START THE BOILER
If a programmer is tted refer to separate instructions for the
programmer before continuing.
Start the boiler as follows:
1. Set the mode knob (C) to ‘BOILER OFF’.
2. Set the Domestic Hot Water temperature knob (A) and
Central Heating temperature knob (B) to ‘MAX’.
3. Ensure that all hot water taps are turned off.
4.
Switch on electricity to the boiler and check that all external
controls, e.g. programmer and room thermostat, are on.
5. Set the mode knob (C) to ‘ ’ (winter).
The boiler will commence ignition sequence, supplying heat to
the central heating, if required.
Note. In normal operation the boiler status display (D) will display
messages (see section 7).
Note. Boiler frost protection - boiler will re if temperature is below 5ºC.
During normal operation the burner on symbol (E) will remain
illuminated when the burner is lit.
Note. If the boiler fails to light after ve attempts the following
fault messages will be displayed:
Ignition Lockout 1/2
Check Other Gas
Appliances Work
Restart Boiler
Restart Menu
Ignition Lockout 2/2
If Fault Persists
Contact Installer
Restart Menu
To restart the boiler, press restart. The boiler will repeat the ignition
sequence. If the boiler still fails to light consult a Registered Gas
Installer, or in IE a Registered Gas Installer (RGII).
4
OPERATION MODES
Winter Conditions -
(Central Heating and Domestic Hot Water
required)
Set the mode knob (C) ‘ ’ (winter).
The boiler will re and supply heat to the radiators.
The domestic hot water preheat will operate with the preheat
button set to ‘Preheat On’.
Summer Conditions - (Domestic Hot Water only required)
Set the mode knob (C) to ‘
’ (summer).
Set the central heating demand on the external controls to OFF.
The domestic hot water preheat will operate with the preheat
button set to ‘Hot Water On’.
Boiler Off
Set the mode knob (C) to ‘BOILER OFF’. The boiler mains power
supply must be left on to enable 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 to “Preheat On”.
The boiler will operate periodically for a few seconds to
maintain the domestic hot water heat exchanger in a preheated
condition. The average time period between operation is 90
minutes. This may vary considerably due to the surrounding
ambient temperature of the boiler. The boiler will operate
whenever there is a demand for domestic hot water.
If standard hot water delivery is satisfactory set the preheat to
‘Preheat Off’.
5
CONTROL OF WATER TEMPERATURE
Domestic Hot Water
The domestic hot water temperature is limited by the boiler
controls to a maximum temperature of 65
º
C, adjustable via
the domestic hot water temperature knob (B). At low DHW
draw off rates the maximum temperature may exceed 65ºC.
Approximate temperatures for domestic hot water:
Knob Setting Hot Water Temperature (approx.)
Minimum 40ºC
Maximum 65ºC
Due to system variations and seasonal temperature
uctuations domestic hot water ow rates/temperature rise
will vary, requiring adjustment at the tap : the lower the ow
rate the higher the temperature, and vice versa.
Central Heating
The boiler controls the central heating radiator temperature
to a maximum of 80oC, adjustable via the central heating
temperature knob (B).
Approximate temperatures for central heating:
Knob Setting
Central Heating Radiator Temperature (approx.)
Minimum 30ºC
Maximum 80ºC
For economy setting ‘
’ refer to Efcient Heating System
Operation.
EFFICIENT HEATING SYSTEM OPERATION
The boiler is a high efciency, condensing appliance which
will automatically adjust its output to match the demand for
heat. Therefore gas consumption is reduced as the heat
demand is reduced.
The boiler condenses water from the ue gases when operating
most efciently. To operate your boiler efciently (using less
gas) turn the central heating temperature knob (B) to the ‘
‘ position or lower. In winter periods it may be necessary
to turn the knob towards 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 tted to the system
then the central heating temperature knob (B) becomes
a method of controlling room temperature. Turn the knob
clockwise to increase room temperature and anti-clockwise
to decrease room temperature. Once the desired setting has
been achieved, leave the knob in this position and the system
will automatically achieve the desired room temperature for all
outside weather conditions.
BOILER FROST PROTECTION
The boiler is tted with frost protection that operates in all
modes, provided the power supply to the boiler is always
turned on. If the water in the boiler falls below 5ºC, the frost
protection will activate and run the boiler to avoid freezing.
The process does not guarantee that all other parts of the
system will be protected.
If a system frost thermostat has been installed, the boiler must
be set in winter mode, ‘
’, for the system frost protection
to run.
If no system frost protection is provided and frost is likely
during a short absence from home it is recommended to leave
the system heating controls or built in programmer (if tted)
switched on and run at a reduced temperature setting. For
longer periods, the entire system should be drained.
BOILER RESTART
To restart the boiler, when directed in the listed fault messages
(see section 9) press “Restart”. The boiler will repeat its ignition
sequence. If the boiler still fails to start consult a Gas Safe
Registered Engineer or in IE a Registered Gas Installer (RGII).
MAINS POWER OFF
To remove all power to the boiler the mains power switch
must be turned off.
6
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