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General| Model | GREENSTAR CDi CLASSIC 42CDi GC |
|---|---|
| Category | Boiler |
| Output | 42 kW |
| Central Heating Output | 30 kW |
| Domestic Hot Water Output | 42 kW |
| ErP Heating | A |
| ErP Water | A |
| Fuel Type | Natural Gas |
| SEDBUK Rating | A |
| Dimensions | 760 x 440 x 360 mm |
| Warranty | 5 years |
| Boiler Type | Combi |
| Flue Options | Horizontal or vertical |
Explains warning symbols, signal words, and important information symbols used in the manual.
Provides critical safety advice for gas leaks, boiler operation, and handling combustible materials.
Details requirements for boiler servicing, using original spares, and completing the Benchmark Checklist.
Explains the Benchmark initiative for correct installation, commissioning, and servicing of heating systems.
Identifies and describes the various controls and indicators on the boiler's front panel.
Instructions on how to turn the boiler on and off using the main power button and the indicator light.
Guide on adjusting the central heating temperature using the control knob and understanding the corresponding settings.
Explains the use of programmers, timers, and room thermostats for effective central heating control.
Instructions for setting the desired domestic hot water temperature using the control knob.
Details how to activate frost protection for the boiler and its effect on central heating and hot water.
Explains the pre-heat mode for faster hot water delivery and the ECO mode function.
Instructions for activating and deactivating the holiday setting to turn off central heating.
Describes how to handle a fault condition, reset the boiler, and contact support.
Step-by-step guide on how to check and re-pressurise the heating system to the correct pressure.
A table listing common problems, their causes, and remedies for troubleshooting.
Lists specific error codes displayed by the boiler and their potential causes.
Advice on preventing and thawing frozen condensate pipes during cold weather to avoid boiler shutdown.
Information on sealed heating systems, system pressure, and regular checks.
Describes the normal plume of water vapour from the flue and the condensate discharge.
Describes the pump anti-seizure function that runs the pump periodically to prevent it from seizing.
Specifies the required clearances around the boiler for servicing and ventilation.
Notes on ventilation requirements for room-sealed boilers and compartment installations.
Provides contact information for technical support, appointments, and advice on handling faults.
Discusses how the boiler's modulating control helps save energy and maintain comfort.
Recommends upgrading heating control systems for better efficiency, mentioning programmers and thermostats.
Explains how to set boiler controls and use TRVs for individual room temperature control.
Advises that reducing room thermostat settings by 1°C can save up to 10% on fuel consumption.
Highlights the importance of roof insulation for reducing heat loss, recommending a thickness of 200mm.
Suggests replacing single-glazed or steel-framed windows to improve insulation and reduce heat loss.
Recommends lined or heavy curtains for insulation but warns against draping them over radiators.
Advises using draught excluders for doors, windows, and letterboxes to reduce heat loss.
Explains how radiator performance is affected by curtains or shelves and the impact of turning off radiators in unused rooms.
Information on the two-year guarantee, terms, and how to register the boiler online or by phone.
Explains how radiators should be heated evenly and how to bleed them.
Describes the normal plume of water vapour from the flue and the condensate discharge.
Defines the role of room thermostats and programmers in controlling central heating times and temperatures.
Recommends fitting thermostatic radiator valves to all radiators except one controlled by the room thermostat.
Explains that the pump may continue to run after heating demand to dissipate residual heat.
Describes the function that runs the pump periodically to prevent seizure during inactivity.
Defines SEDBUK as Seasonal Efficiency of Domestic Boilers in the UK.
