Bosch Condens 8300i W Installation And Maintenance Instructions Manual

Also see for Condens 8300i W: Operation manual Operation manual Installation and maintenance instructions Installation instructions

Preconditions for installationCondens 8300i W – 6721841533 (2022/12)14Fig. 15 Branched pipe disposalLegend to Fig. 12 – Fig. 15:[1] Condensate discharge[2] Air gap (20mm)[3] Tundish[4] Self sealing device[5] Dishwasher connection[6] Vent stack5.6 HeatingGravity circulation heating▶ Connect the device to the existing piping system via a low loss headerwith a dirt separator.Underfloor heating systems▶ Observe the permissible flow temperatures for underfloor heatingsystems and connect a temperature switch if required.▶ When using plastic pipes, use oxygen-tight pipework or createsystem separation by means of heat exchangers.5.7 Fill and top-up waterWater quality of the heating waterThe quality of the fill and top-up water is an essential factor for increasedefficiency, functional reliability, long service life and for maintaining theoperational readiness of a heating system.NOTICEUnsuitable water, antifreeze or heating water additives can damagethe heat exchanger or cause a fault in the heat source or DHWsupply!Unsuitable or contaminated water can lead to sludge formation,corrosion or scaling. Unsuitable antifreeze or hot water additives(inhibitors or anti-corrosion agents) can damage the heat source andheating system.▶ Flush the heating system prior to filling.▶ Only fill the heating system with potable water.▶ Do not use well water or groundwater.▶ Treat the fill and top-up water according to the instructions in thefollowing section.▶ Only use antifreeze approved by us.▶ Only use a heating water additive, e.g. corrosion inhibitor, if themanufacturer of the heating water additive certifies its suitability fora heat source made of aluminium materials and for all other materialsin the heating system.▶ Only use antifreeze and heating water additives according tospecifications of the manufacturer, e.g. with regard to the minimumconcentration.▶ Follow the instructions of the manufacturer of the antifreeze andheating water additive about regular checking and correctivemeasures.Heating system waterUnsuitable fill and top-up water in the heating system can result in theheat exchanger scaling up and failing prematurely.Table 10CAUTIONThe type of fluid used in the combination boiler heating circuit is tobe of a non-toxic type.AntifreezeThe document 6 720 841 872 contains a list of approved antifreezes.You can use the document search on our website to display this. You willfind the address of the website on the back cover of these instructions.Corrosion inhibitorThe following corrosion inhibitors are permitted:Table 11Heating water additivesHeating water additives, e.g. corrosion inhibitors, are only required inthe case of constant oxygen ingress, which can not be prevented throughother means.Sealants in the heating water can cause deposits in the heat exchanger.We therefore advise against their use.20mm140/50mm Ø42536720646195-17.1WoHardness range Water treatmentsoft (≤ 8.4° dH) not requiredmedium (8.4 - 14° dH) recommendedhard (≥ 14° dH) requiredDesignation ConcentrationFernox see supplier informationSentinel see supplier information