Ideal Logic Combi C30 Boiler Instruction Manual
Ideal Logic Combi C30 Boiler
Ideal Logic Combi C30 Boiler
Ideal Logic Combi C30 Boiler
Ideal Logic Combi C30 Boiler
Ideal Logic Combi C30 Boiler Instructions
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Ideal Logic Combi C30 Boiler Specifications
| Feature | Specification |
|---|---|
| Model | Ideal Logic Combi2 C30 (wall-mounted condensing combination boiler) |
| G.C. Appliance No. (Benchmark No.) | 47-349-94 |
| Gas Type | Natural Gas 2H - G20 - 20 mbar (LPG conversion kit available) |
| Appliance Type | C13 / C33 / C53 room-sealed, fan-assisted |
| Destination Country | GB |
| CH Output (70°C mean water temp.) | 6.1 - 24.2 kW |
| CH Output (40°C mean water temp., condensing) | 6.4 - 25.6 kW |
| CH Input (Net CV) max / min | 24.3 kW / 6.1 kW |
| CH Input (Gross CV) max / min | 27 kW / 6.7 kW |
| Minimum CH Gas Consumption | 0.627 m³/h (22 ft³/h) |
| Maximum DHW Input (Net / Gross CV) | 30.4 kW / 33.7 kW |
| Maximum DHW Output | 30.3 kW |
| DHW Gas Consumption (max) | 3.135 m³/h (111 ft³/h) |
| DHW Flow Rate at 35°C Rise | 12.4 l/min (2.8 gpm) |
| DHW Specific Rate | 14.5 l/min (3.2 gpm) |
| Minimum DHW Delivery | 2 l/min |
| CH Flow Temperature Range | 30°C - 80°C |
| DHW Temperature Range | 40°C - 65°C |
| Seasonal Space Heating Energy Efficiency (ErP) | 94% (Class A) |
| Water Heating Energy Efficiency (Tapping Profile L) | 81% (Class A) |
| SEDBUK 2005 / SEDBUK 2009/2012 | 91.1% / 89.6% |
| Useful Efficiency Full Load / Part Load | 90% / 98.7% |
| NOx Emissions | 25 mg/kWh (Class 6) |
| Sound Power Level Indoors | 46 dB(A) |
| Annual Energy Consumption (Space Heating) | 75 GJ |
| Daily Fuel Consumption (24 h, GCV) | 14.631 kWh |
| Annual Electricity / Fuel Consumption (DHW) | 34 kWh / 11 GJ |
| Auxiliary Electricity Consumption | 0.027 kW full load, 0.01 kW part load, 0.003 kW standby |
| Injector Size | 4.65 mm |
| CO2 Content (± 0.7) | 9.3% max DHW, 8.5% min CH |
| Average Flue Temperature - Mass Flow Rate (DHW) | 68°C - 13 g/s |
| Electrical Supply | 230 V ~ 50 Hz |
| Power Consumption | 91 W |
| Fuse Rating | External 3 A; Internal T4A HRC L250 V |
| Electrical Protection | IP20 |
| Maximum Working Pressure (Sealed System) | 2.5 bar (36.3 psi) |
| Maximum DHW Inlet Pressure | 10.0 bar (145 psi) |
| Minimum DHW Inlet Pressure (for max flow) | 1.3 bar (18.9 psi) |
| Minimum Operating System Pressure | 0.3 bar |
| Gas Supply Connection | 15 mm copper compression |
| DHW Inlet / Outlet Connections | 15 mm copper compression |
| CH Flow / Return Connections | 22 mm copper compression |
| Water Content | CH 1.2 l (0.26 gal); DHW 1.0 l (0.22 gal) |
| Expansion Vessel | 8 litres, 0.75 bar initial charge |
| Pressure Relief Valve | 3 bar, non-adjustable |
| Pressure Gauge Range | 0 - 4 bar |
| Heat Exchanger | Cast aluminium |
| Flue Terminal Diameter | 100 mm (concentric 60/100) |
| Maximum Horizontal Flue Length | 8 m |
| Maximum Vertical Flue Length | 7.5 m |
| Flue Bend Resistance | 90° = 1.0 m; 45° = 0.6 m |
| Condensate Trap | 75 mm siphonic; outlet for 21.5 mm overflow pipe |
| Casing Dimensions (H x W x D) | 700 x 395 x 278 mm |
| Packaged Weight / Lift Weight | 33 kg / 28.6 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 (subject to T&Cs) |
Ideal Logic Combi C30 Boiler Details
The Ideal Logic Combi C30 provides central heating and instantaneous domestic hot water from one compact wall-mounted unit. It comes fully assembled with a plate heat exchanger, diverter valve, circulating pump, pressure gauge, PRV and expansion vessel. It uses full-sequence automatic spark ignition and a single electrode that handles both ignition and flame detection. The casing is white-painted mild steel with a white polymer front panel. When there is a hot water demand, the whole boiler output goes to hot water, and heating resumes afterwards.
The front panel has two temperature knobs, a Mode button, a Restart button, a pressure gauge and a high-resolution display with icons. The Mode button cycles between winter operation (heating and hot water), summer operation (hot water only) and off. A cross over the radiator or tap icon shows that the service is disabled. Display codes show preheat (PH), frost protection (FP), lockouts (L codes) and faults (F codes), which makes basic diagnosis straightforward.
Preheat is switched off at the factory. An installer can switch on the timed intelligent preheat function. It learns hot water use over 24 hours and warms the plate heat exchanger shortly before the same times on the following day. For example, a 6 am shower on Monday triggers preheating for 6 am on Tuesday. This gives faster hot water at the tap while keeping gas use as low as possible.
Intelligent Load Optimisation reduces on-off cycling. If the flow temperature reaches the heating target plus 4°C, the burner switches off. When it relights, it drops to minimum rate over 60 seconds and stays there for 10 minutes. The built-in frost protection runs in all modes: it starts when the boiler water falls below 5°C and continues until it reaches 19°C. The pump and diverter valve also run briefly every 24 hours to prevent seizure.
For controls, the boiler supports 230 V programmable room thermostats and timers, OpenTherm devices such as the Ideal Halo range, weather compensation with an outside sensor, and an optional frost thermostat. With weather compensation fitted, the central heating knob sets the room temperature instead of the flow temperature. Installer Mode, opened by holding Mode and Restart for more than 5 seconds, gives access to fault history, maximum and minimum rate tests, a 5-minute venting cycle, diverter mid-position and pump speed settings.
Several flue options are available: telescopic and non-telescopic horizontal flues, vertical terminals, a loft air inlet kit, high level outlet kits, balcony and soffit kits, and flue deflectors. High-rise versions with aluminium inner ducts meet the 2018 regulations on combustible materials in buildings over 18 m. Flue extensions must slope back to the boiler at 1.5°, which is 26 mm of rise per metre.
The siphonic condensate trap reduces the risk of the condensate freezing. A blocked condensate pipe causes gurgling and then an L02 lockout. For water treatment, Ideal recommends inhibitors suitable for aluminium heat exchangers. In hard water areas above 200 ppm, a scale reducer should be fitted on the cold supply. The boiler should be serviced at least once a year by a Gas Safe engineer, and the Benchmark checklist must be completed to keep the warranty valid.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Ideal Logic Combi C30 Boiler, and we answer them below.
