Ideal C30, C35, C24 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 213972 A07
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
Efcient 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
1. INTRODUCTION
The Logic Combi C 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 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
correctly tted 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.
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.
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
2
User’s
2. BOILER OPERATION
Legend
A. Domestic Hot Water Temperature Knob
B. Central Heating Temperature Knob
C. Mode Knob
D. Boiler Status Display
E. Burner ‘on’ Indicator
F. Preheat On Off button
G. Restart button
H. Central Heating Economy Setting
J. Pressure Gauge
ºC
HOT WATER
PREHEAT
MIN MAX MIN
ON
PREHEAT RESTART
BOILER
OFF
e
MAX
MODE
TO START THE BOILER
If a programmer is tted refer to separate instructions for the
programmer before continuing.
Start the boiler as follows:
1. Check that the electricity supply to boiler is off.
2. Set the mode knob (C) to ‘BOILER OFF’.
3. Set the Domestic Hot Water temperature knob (A) and Central
Heating temperature knob (B) to ‘MAX’.
4. Ensure that all hot water taps are turned off.
Switch on electricity to the boiler and check that all external
5.
controls, e.g. programmer and room thermostat, are on.
6. 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 show codes:
00 Standby - no demand for heat.
Central Heating being supplied
Domestic hot water being supplied
PH Domestic hot water preheat
FP Boiler frost protection
- boiler will re if temperature is below 5ºC.
During normal operation the burner on indicator ‘ ’ will remain
illuminated when the burner is lit.
Note: If the boiler fails to light after ve attempts the fault code
will be displayed (refer to Fault Code page).
OPERATION MODES
Winter Conditions -
Set the mode knob (C) ‘ ’ (winter).
The boiler will re and supply heat to the radiators but will give
priority to domestic hot water on demand.
The domestic hot water preheat will operate with the
button pressed so that the display shows “HOT WATER
PREHEAT ON”.
Summer Conditions - (Domestic Hot Water only required)
Set the mode knob (C) to ‘
Set the central heating demand on the external controls to OFF.
The domestic hot water preheat will operate with the
button pressed so that the display shows “HOT WATER
PREHEAT 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).
User’s
(Central Heating and Domestic Hot Water required)
‘
PREHEAT’
’ (summer).
‘
PREHEAT’
AJ D E B CF G
H
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 ‘
‘HOT WATER PREHEAT ON’
PREHEAT
’ button
(F)
is shown on the display.
so that
The boiler will operate periodically for a few seconds to maintain
the domestic hot water heat exchanger in a preheated condition.
The avera ge 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 press the ‘
button (F) so that
‘HOT WATER PREHEAT OFF’
PREHEAT
is shown on the
display.
CONTROL OF WATER TEMPERATURE
Domestic Hot Water
The domestic hot water temperature is limited by the boiler
controls to a maximum temperature of 65
domestic hot water temperature knob (A).
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.
º
C, adjustable via the
continued..........
’
3
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