Bosch Appliances 35CDI II AIR Supply for Open Flued O.F. Appliances, Circulating Pump, Service

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The water hardness may be determined using the standard test paper or by reference to the local Water Company.

Further information may be obtained from Worcester Bosch Technical Helpline.

AIR SUPPLY FOR OPEN FLUED (O.F.) APPLIANCES

Your installer will have made arrangements for an adequate sup- ply of fresh air to the appliance. Fresh air is required for combustion. Do not block up any air ways which may be let into a wall or door. Do not hang clothes or other combustible materials over the appliance or against the flue pipe.

NOTE: Do not place anything on top of the appliance. If the appliance is fitted in a compartment do not use the compartment for storage purposes unless it conforms to the requirements of

BS 6798:1987: Section 6. In particular, the flue pipe should not pass through an airing cupboard space unless protected by a guard (such as wire mesh) concentrically spaced 13mm (1/2in), as described in BS 6798:1987.

VENTILATION OF BALANCED FLUED (BF) AND ROOM SEALED FANNED FLUE (RSF) APPLIANCES

These are room sealed appliances and any ventilation openings in a wall or door must not be obstructed. Do not allow the flue termi- nal fitted on the outside wall to become obstructed or damaged.

NOTE: Do not place anything on top of the appliance. If the appliance is fitted in a compartment do not use the compartment for storage purposes unless it conforms to the requirements of

BS 6798:1987: Section 6. It is essential that the airing space is separat- ed from the boiler space by a perforated non-combustible partition as described in BS 6798:1987.

CIRCULATING PUMP

This may be fitted with a speed adjuster. If so it will be factory set at maximum and should not be changed.

FROST PRECAUTIONS

If the appliance is not to be used for a long period of time and there is a likelihood of freezing, then the appliance should be drained. The Worcester Technical Helpline will advise you on suit- able frost precautions. For short periods, the built-in frost protection of the appliance will be adequate.

SERVICE

Annual servicing is important to ensure continuing high efficiency and long life of your appliance. Suitable servicing arrangements should be made with a competent third party. In the event of any difficulty in making suitable service arrangements, Worcester personnel will be happy to dis- cuss regular servicing and offer a comprehensive maintenance contract.

IMPORTANT: Do not touch or adjust any sealed compontent.

WARNING

If a gas leak exists, or is suspected, turn off the gas supply to the appliance at the service cock and consult your local service engineer.

Do not touch any electrical switches to turn them either on or off. Open all windows and doors. Do not smoke. Extinguish all naked lights.

CLEANING

Do not use abrasive cleaners on the outer casing. Use a damp cloth and a little detergent.

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Contents Combi Excellence Comes AS Standard ContentsGeneral Description GAS Safety Installation and USE RegulationsGeneral Information BenchmarkHot Water Mode Central Heating System General NotesSealed Heating System SHOWERS, BIDETS, Taps and Mixing Valves ClearancesRoom Thermostat Thermostatic Radiator ValvesAIR Supply for Open Flued O.F. Appliances Frost PrecautionsService CleaningOperation Controls Indicator Lights To Light and Stop Appliance Flue Spillage Device of only Removal and ReplacementIgnition Lockout AIR Flow Device RSF onlyCALL-OUT Charges Appliance Fails to OperateMaintaining Your Appliance Contact Numbers Service CentresYour Worcester CDi Combi Guarantee For Your OWN Record Guarantee Registration
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28CDI, 35CDI II, 24CDI specifications

Bosch Appliances has established itself as a leader in the world of heating and hot water solutions, and its range of condensing boilers, specifically the 28CDI, 35CDI II, and 24CDI models, exemplifies their commitment to innovation, efficiency, and reliability.

The Bosch 28CDI condensing boiler is designed with efficiency in mind, delivering a powerful output without compromising on energy consumption. With a maximum output of 28kW, it is ideal for medium-sized homes and offers high levels of heating performance. Its compact design makes it easy to install in various locations, even in smaller homes. Notably, the 28CDI features a built-in wireless connectivity option, allowing users to monitor and control their heating system remotely via a smartphone app.

The Bosch 35CDI II takes energy efficiency to the next level, with an increased output of 35kW, providing ample heating for larger homes. This model incorporates advanced weather compensation technology, which adjusts the heating output based on outdoor temperature, thus optimizing energy use and enhancing comfort. Additionally, the 35CDI II features a high-efficiency stainless steel heat exchanger, ensuring durability while maximizing energy savings. The boiler's intuitive user interface makes it easy to operate, providing users with real-time information about their heating system.

For even smaller spaces, the Bosch 24CDI offers a compact solution with an output of 24kW. This model is particularly effective for energy-conscious homeowners. It includes an integrated condensing technology which allows for efficient heat recovery from exhaust gases, resulting in lower energy bills and reduced carbon emissions. The 24CDI is also designed for quiet operation, ensuring that it runs smoothly without disturbing the household.

All three models boast several advanced safety features, including frost protection, pressure relief, and a quick reset function. They are also compatible with Bosch's range of smart controls, enabling users to tailor their heating needs according to their schedule and preferences. With these notable characteristics, the Bosch 28CDI, 35CDI II, and 24CDI boilers provide efficient, reliable heating solutions tailored to various household requirements, ensuring comfort and peace of mind for homeowners.
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