Ideal Logic Max Combi C24 Boiler Instruction Manual
Ideal Logic Max Combi C24 Boiler
Ideal Logic Max Combi C24 Boiler
Ideal Logic Max Combi C24 Boiler
Ideal Logic Max Combi C24 Boiler
Ideal Logic Max Combi C24 Instructions
Here we offer the Ideal Logic Max 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 Max Combi C24 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Ideal Logic Max Combi C24 Boiler Specifications
| Feature | Specification |
|---|---|
| Appliance Type | Wall-mounted, room-sealed, fan-assisted condensing combination gas boiler |
| G.C. Appliance Number (Benchmark No.) | 47-387-03 |
| Gas Type | Natural Gas 2H – G20 – 20 mbar (LPG conversion kit available) |
| Destination Country | GB |
| Boiler Input, Net CV (Max / Min) | 24.3 kW / 4.9 kW |
| Boiler Input, Gross CV (Max / Min) | 27 kW / 5.4 kW |
| Gas Consumption (Max / Min) | 2.512 m³/h (89 ft³/h) / 0.5 m³/h (17.8 ft³/h) |
| CH Output, Non-Condensing (70 °C Mean Water Temp.) | 4.8 – 24.2 kW |
| CH Output, Condensing (40 °C Mean Water Temp.) | 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 | 2 l/min |
| Central Heating Flow Temperature Range | 30 – 80 °C |
| Domestic Hot Water Temperature Range | 40 – 65 °C |
| Seasonal Space Heating Energy Efficiency (ErP) | 94% – Class A |
| Water Heating Energy Efficiency | 82% (Tapping Profile L) – Class A |
| ErP Efficiency at Full Load / Part Load | 90% / 98.6% |
| SEDBUK 2005 / SEDBUK 2009/2012 | 91.1% / 89.6% |
| NOx Classification / Emissions | Class 6 / 28 mg/kWh (gross) |
| Sound Power Level, Indoors | 50 dB(A) |
| Annual Energy Consumption (Space Heating) | 75 GJ |
| Annual Fuel Consumption / Annual Electricity Consumption (DHW) | 11 GJ / 29 kWh |
| Daily Fuel Consumption (24 h, GCV) | 14.7 kWh |
| Auxiliary Electricity (Full Load / Part Load / Standby) | 0.044 kW / 0.013 kW / 0.002 kW |
| Standby Heat Loss | 0.05 kW |
| Electrical Supply | 230 V ~ 50 Hz, must be earthed |
| Power Consumption | 94 W |
| Fuse Rating | External: 3 A; Internal: T4A HRC L250 V |
| Electrical Protection | IP20 |
| Maximum CH Working Pressure (Sealed Systems) | 2.5 bar (36.3 psi) |
| Maximum DHW Inlet Pressure | 10.0 bar (145 psi) |
| Minimum DHW Inlet Pressure (for max. flow rate) | 0.8 bar (11.6 psi) |
| Minimum Operating System Pressure | 0.3 bar (recommended fill pressure 1 – 1.5 bar) |
| Pressure Relief Valve | Non-adjustable, 3 bar preset lift pressure |
| Expansion Vessel | 8 litres, 0.75 bar initial charge pressure |
| Pressure Gauge Range | 0 – 4 bar |
| Water Content (CH / DHW) | 1.2 l (0.26 gal) / 1.0 l (0.22 gal) |
| Available Pump Head (17.3 l/min, 20 °C ΔT) | 3.4 m.w.g. (3.1 m.w.g. with Ideal System Filter and valves fitted) |
| Heat Exchanger Material | Cast aluminium |
| Injector Size | 4.15 mm |
| CO₂ Content (± 0.7%) | 9.2% at max. DHW / 8.5% at min. CH |
| Average Flue Temperature – Mass Flow Rate (DHW) | 63 °C – 11 g/s |
| Gas Connection | 15 mm copper compression |
| CH Flow / Return Connections | 22 mm copper compression |
| DHW Inlet / Outlet Connections | 15 mm copper compression |
| Condensate Drain Outlet | Sized for standard 21.5 mm overflow pipe (universal fitting) |
| Flue Terminal Diameter | 100 mm (concentric, types C13 / C33 / C53) |
| Wall Core Hole | 127 mm diameter |
| Maximum Horizontal Flue Length | 9.0 m |
| Maximum Vertical Flue Length | 7.5 m |
| Flue Elbow Equivalence | 45° elbow = 0.6 m; 90° elbow = 1.0 m |
| Casing Dimensions (H × W × D) | 700 × 395 × 278 mm |
| Lift Weight | 28.5 kg |
| Packaged Weight | 34.8 kg |
| Servicing Clearances | 165 mm above, 100 mm below, 2.5 mm sides, 450 mm front |
| Casing Finish | White painted mild steel with white polymer front panel |
| Warranty | 10 years parts and labour when registered within 30 days (subject to terms) |
Ideal Logic Max Combi C24 Boiler Details
The Ideal Logic Max Combi C24 is part of the Logic Max Combi2 range. It provides central heating and instantaneous domestic hot water from one compact wall-hung unit. It arrives fully assembled with a DHW plate heat exchanger, diverter valve, circulating pump, pressure gauge, PRV and expansion vessel. The box also includes an Ideal System Filter, which must be installed correctly to keep the warranty valid. The hardware pack is fully labelled and includes preformed copper tails, a built-in filling loop, a PRV discharge pipe and a pre-wired mains lead.
Users control the boiler through a large colour screen, two temperature knobs, a Mode button and hot keys. The Mode button switches between Off, Summer (hot water only) and Winter (heating and hot water). The display can scroll through up to three status messages. The leaf symbol on the heating knob marks the economy setting, where the boiler condenses most efficiently. According to the manual, turning the room thermostat down by 1 °C can cut gas use by up to 10%.
The DHW preheat function has three settings: Off (factory default), On and Timed. When it is active, preheating starts once the flow temperature drops 15 °C below the DHW target. It stops at 5 °C below the target or after 3 minutes, and it runs at most once every 30 minutes. The Timed mode learns how the household uses hot water over 7 days. It then preheats only during the periods when hot water was used the previous week, which gives quicker hot water with less gas.
Intelligent Load Optimisation reduces short cycling. If the flow temperature goes 4 °C above the heating target, the burner switches off. When it relights, it ramps down to minimum rate over 60 seconds and stays there for 10 minutes. Normal operation returns after those 10 minutes, or once heating demand has been off for more than an hour. The boiler also has a fan overrun cycle, a pump overrun, and a daily pump and diverter valve exercise that prevents seizing.
Frost protection works in every mode as long as the mains power stays on. It fires the boiler when the water temperature falls below 5 °C. A siphonic 75 mm condensate trap lowers the risk of the condensate freezing. If the condensate pipe does freeze, the boiler gurgles and then shows "Ignition Lockout". The manual explains how to thaw the pipe safely with warm water or heat packs. It warns never to use boiling water and never to thaw pipework above ground level.
The boiler works with Ideal's Halo controls without any hardwiring. Pairing it with a Halo Combi Wi-Fi thermostat raises the ErP rating from A to A+ through load and weather compensation, geolocation and Met Office forecast data. Other supported options are the wired OpenTherm Halo Lite, the 2-Zone extension kit and outdoor sensor 216119. The older PRT3 RF thermostat is not compatible. The boiler is also compatible with solar thermal and hybrid systems.
For servicing and diagnostics, the menu gives access to Fault Help, Fault History, Sensor Readings and a Vent System routine. A "Service Due" reminder appears after the boiler has been installed for one year. There are clear on-screen messages for faults such as low water pressure, blocked flue or condensate, and pump dry run. All servicing is done from the front of the boiler, which uses a Honeywell gas valve and a single spark and detection electrode.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Ideal Logic Max Combi C24 Boiler, and we answer them below.
