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Bosch KWB42-3A User Manual

Bosch KWB42-3A
36 pages
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6720810589 (2021/01) CA/US
Operating instructions
Residential Gas Condensing Boiler
Greenstar FS/Combi FS
6720810589-00.2Wo
KBR21/28-/35/42-3A | KWB28/35/42-3A

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Bosch KWB42-3A Specifications

General IconGeneral
BrandBosch
ModelKWB42-3A
CategoryBoiler
LanguageEnglish

Summary

Explanation of Symbols and Safety Instructions

Safety Instructions

Covers critical safety guidelines including gas, flue gas, combustion air, electrical hazards, and operational safety.

Prepare for Operation

Operation

Overview of Controls

Identifies and describes all controls and indicators on the boiler's main control panel.

KBR..-3A Appliances with DHW Tank: Setting DHW Temperature

Guides setting the Domestic Hot Water (DHW) temperature for specific models, including safety warnings.

KWB..-3A Appliances (Combi Boilers): Setting DHW Temperature

Explains how to set the DHW temperature for combi boiler models and discusses ECO button modes.

Setting Frost Protection

Provides instructions for setting frost protection for both the heating system and the DHW tank.

Thermal Disinfection

Troubleshooting

Maintenance

Quick Reference

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