Ideal Logic Combi C24 Boiler Instruction Manual
Ideal Logic Combi C24 Boiler
Ideal Logic Combi C24 Boiler
Ideal Logic Combi C24 Boiler
Ideal Logic Combi C24 Boiler
Ideal Logic Combi C24 Boiler Instructions
Here we offer the Ideal Logic Combi C24 Boiler manual completely free and in English. We have cataloged this manual in the Boilers section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Ideal Logic Combi C24 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Ideal Logic Combi C24 Boiler Specifications
| Feature | Specification |
|---|---|
| Boiler Type | Wall-mounted, room-sealed, condensing combination gas boiler (C13, C33, C53) |
| G.C. Appliance Number | 47-349-93 |
| Gas Type and Supply Pressure | Natural Gas 2H - G20, 20 mbar (LPG conversion kit available) |
| Injector Size | 4.15 mm |
| Maximum Heat Input (Net / Gross CV) | 24.3 kW / 27 kW |
| Minimum Heat Input (Net / Gross CV) | 4.9 kW / 5.4 kW |
| Maximum Gas Consumption | 2.512 m³/h (89 ft³/h) |
| CH Output at 70°C Mean Water Temperature | 4.8 - 24.2 kW |
| CH Output at 40°C Mean Water Temperature (Condensing) | 5.1 - 25.6 kW |
| Maximum DHW Output | 24.2 kW |
| DHW Flow Rate at 35°C Temperature Rise | 9.9 l/min (2.2 gpm) |
| DHW Specific Rate | 11.5 l/min (2.5 gpm) |
| Minimum DHW Delivery for Operation | 2 l/min |
| CH Flow Temperature Range | 30°C - 80°C |
| DHW Temperature Range | 40°C - 65°C |
| Seasonal Efficiency (SEDBUK 2005 / 2009) | 91.1% / 89.6% |
| ErP Seasonal Space Heating Efficiency | 94%, Class A |
| Water Heating Energy Efficiency | 81%, Class A (tapping profile L) |
| Useful Efficiency (Full Load / Part Load) | 90% / 98.7% |
| Annual Energy Consumption (Space Heating) | 75 GJ |
| NOx Classification / Emissions | Class 6 / 28 mg/kWh |
| CO2 Content (±0.7) | 9.2% max DHW / 8.5% min CH |
| Average Flue Temperature - Mass Flow Rate (DHW) | 63°C - 11 g/s |
| Sound Power Level, Indoors | 50 dB(A) |
| Flue Terminal Diameter | 100 mm concentric (Ø60/100) |
| Maximum Horizontal Flue Length | 9 m |
| Maximum Vertical Flue Length | 7.5 m |
| Flue Elbow Resistance | 90° = 1.0 m; 45° = 0.6 m |
| Gas Connection | 15 mm copper compression |
| Cold Water Inlet / Hot Water Outlet | 15 mm copper compression |
| CH Flow / Return Connections | 22 mm copper compression |
| Condensate Drain Outlet | 21.5 mm overflow pipe fitting |
| Maximum Working Pressure (Sealed System) | 2.5 bar (36.3 psi) |
| Maximum DHW Inlet Pressure | 10.0 bar (145 psi) |
| Minimum DHW Inlet Pressure | 0.8 bar (11.6 psi) for maximum flow rate |
| Minimum Operating System Pressure | 0.3 bar (recommended fill 1 - 1.5 bar) |
| Expansion Vessel | 8 litres, 0.75 bar initial charge |
| Pressure Relief Valve | 3 bar, non-adjustable |
| Pressure Gauge Range | 0 - 4 bar |
| CH Water Flow Rate / Available Head | 17.3 l/min at 20°C ΔT / 3.4 m.w.g. |
| Water Content (CH / DHW) | 1.2 litres / 1.0 litre |
| Heat Exchanger | Cast aluminium |
| Electrical Supply | 230 V ~ 50 Hz |
| Power Consumption | 96 W |
| Fuse Rating | External 3 A; Internal T4A HRC L250 V |
| Standby Electrical Consumption | 0.002 kW |
| Ingress Protection | IP20 |
| Casing Dimensions (H x W x D) | 700 x 395 x 278 mm |
| Packaged Weight / Lift Weight | 32.8 kg / 28.5 kg |
| Servicing Clearances | 165 mm above, 100 mm below, 2.5 mm sides, 450 mm front |
| Warranty | 2 years parts and labour when registered within 30 days of installation |
Ideal Logic Combi C24 Boiler Details
The Ideal Logic Combi C24 supplies both central heating and instantaneous domestic hot water from one compact wall-hung unit. It comes fully assembled with a plate heat exchanger, diverter valve, circulating pump, pressure gauge, PRV and expansion vessel. Ignition is fully sequenced and automatic, and combustion is fan-assisted. A single spark and detection electrode, a Honeywell gas valve and a deliberately low component count help keep the boiler reliable. The mild steel casing is painted white and has a white polymer front panel.
The boiler has a timed intelligent preheat function, which is switched off at the factory to save gas. Once switched on in Installer Mode, the display shows "Timed". The boiler then learns your hot water usage over 24 hours and fires briefly to keep the plate heat exchanger warm just before you usually need hot water. For example, if you shower at 6am on Monday, the water will be preheated for 6am on Tuesday. You get hot water faster while using as little extra gas as possible.
Intelligent Load Optimisation cuts down on the boiler switching on and off. If the flow temperature reaches the CH target plus 4°C, the burner stops. When it relights, it drops to minimum rate over 60 seconds and stays there for 10 minutes. Built-in frost protection starts when the water inside the boiler falls below 5°C and runs until it reaches 19°C, provided the power stays on. The pump and diverter valve also run briefly once every 24 hours as a self-check to stop them seizing.
The controls are simple: a mode button, a restart button, and separate knobs for hot water and heating temperature. A high-resolution display with clear icons shows the flame status, the operating mode and diagnostic codes. F codes mean a fault and L codes mean a lockout. For example, F01 is low water pressure, L02 is ignition lockout and F0U is a flow/return difference above 50°C. Setting the heating to 72°C or lower helps the boiler condense and run more efficiently.
You can connect 230 V room thermostats and timers, OpenTherm controls, the Ideal Halo range, weather compensation sensors and a frost thermostat. The wiring centre accepts different cable sizes, including 5-core cable. The boiler also works with solar thermal systems, hybrid systems, waste water heat recovery and the Ideal System Filter. Installer Mode opens by holding Mode and Restart together for 5 seconds. It shows the last three faults and gives access to preheat, maximum and minimum rate tests, a 5-minute venting cycle and pump speed settings.
A siphonic 75 mm condensate trap lowers the risk of freezing. If the condensate pipe does block, you will hear gurgling before the boiler locks out with code L02. The green filling loop handle makes it easy to top up system pressure yourself, and QR codes in the manual link to how-to videos. There are many flue options, including telescopic, vertical, balcony, soffit, high-level and high-rise aluminium flues. The boiler can be fitted on a combustible wall, and inside a cupboard with just 5 mm clearance at the front and bottom.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Ideal Logic Combi C24 Boiler, and we answer them below.
