Products Our motto "Technology for Environmental Protection" has long been an inherent part of our product development philosophy and product range. We strive to improve the environment, to make processes which work with greater environmental compatibility and to avoid putting a strain on the environment. We offer you a multitude of innovative solutions, new products and smart concepts. More Informations Industries & Topics Industries & Topics Overview Fuel oil components Fuel oil components Overview Fast and clean oil filter change Avoiding fungal attacks in biofuel More performance with the sintered plastic sieve AFRISO Smart Home AFRISO Smart Home Overview Gateway HG 02 Products Products Overview AFRISOhome App Alexa Smart home applications Smart home applications Overview Leakage security Security Stand-alone applications Stand-alone applications Overview Getting started with AFRIShome Smart Home Craft 4.0 Craft 4.0 Overview OEM-Manifold systems Hydraulic Balancing Hydraulic Balancing Overview VarioQ Vario-DP Tank conversion Hygienic processes AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search Domestic technology Water technology 68405 Warmwasserzirkulationssystem WZS 100 Images 2 Back WZS 100 | 68405 hot water circulation system in-stock items Documents Benefits dramatic energy savings in circulation mode compared to conventional circulation systemsno mixing of the temperatures in the stratified storage tankthermally controlled hot water temperature (with scald protection)extremely low mounting effort and fast commissioningeligible for heating optimization program (BAFA) Application Circulation system for professional implementation of a service water circulation connection to an energy storage tank (hot water tank/stratified storage tank) which is operated at temperatures higher than 60 °C either permanently or temporarily. Also suitable for stratified hygienic storage and bivalent service water tanks. If used with older existing systems (for example, hot water tanks with wood, solar, gas, heat pump or oil-fired burner), controlled circulation to meet actual demands results in high energy savings. The hot water circulation system is optimally suited for use with renewable energies in domestic technology applications, primarily in single and two family homes. Description Compact, pre-assembled and tightness-tested hot water circulation system in form-fit heat insulation part, consisting of thermal mixing valve with integrated scald protection, circulation pump with all necessary functional components such as shut-off valves, variable safety group assembly, backflow preventer and connection parts as per DIN 1988.The hydraulic separation of the flow paths ensures correct operation of the circulation pump since it has to overcome only one backflow preventer in any operating condition and thus avoids mixing of the cold water inlet in the circulation path. Technical data Downloads Technical data system connectionsG¾ femaleConnection lance / bypassG½ femaleOperating temperature rangeMedium: max. 95 °CMixing temperature35/60 °CSystem pressuremax. 10 barFlow coefficient Kvs1.6 m³/hHousingBrassSafety valveopening pressure: 6 barInsulationPolypropylene EPPDimensionsW x H x D: 320 x 300 x 146 mmcirculation pumpWilo-Star-Z NOVADegree of protectionIP 42 (EN 60529)Supply voltageAC 230 V, 50 HzPower input 2 − 4.5 W Downloads Warmwasserzirkulationssystem WZS 100 Manuals PDF Download Related products
AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search
Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search
Images 2 Back WZS 100 | 68405 hot water circulation system in-stock items Documents Benefits dramatic energy savings in circulation mode compared to conventional circulation systemsno mixing of the temperatures in the stratified storage tankthermally controlled hot water temperature (with scald protection)extremely low mounting effort and fast commissioningeligible for heating optimization program (BAFA) Application Circulation system for professional implementation of a service water circulation connection to an energy storage tank (hot water tank/stratified storage tank) which is operated at temperatures higher than 60 °C either permanently or temporarily. Also suitable for stratified hygienic storage and bivalent service water tanks. If used with older existing systems (for example, hot water tanks with wood, solar, gas, heat pump or oil-fired burner), controlled circulation to meet actual demands results in high energy savings. The hot water circulation system is optimally suited for use with renewable energies in domestic technology applications, primarily in single and two family homes. Description Compact, pre-assembled and tightness-tested hot water circulation system in form-fit heat insulation part, consisting of thermal mixing valve with integrated scald protection, circulation pump with all necessary functional components such as shut-off valves, variable safety group assembly, backflow preventer and connection parts as per DIN 1988.The hydraulic separation of the flow paths ensures correct operation of the circulation pump since it has to overcome only one backflow preventer in any operating condition and thus avoids mixing of the cold water inlet in the circulation path. Technical data Downloads Technical data system connectionsG¾ femaleConnection lance / bypassG½ femaleOperating temperature rangeMedium: max. 95 °CMixing temperature35/60 °CSystem pressuremax. 10 barFlow coefficient Kvs1.6 m³/hHousingBrassSafety valveopening pressure: 6 barInsulationPolypropylene EPPDimensionsW x H x D: 320 x 300 x 146 mmcirculation pumpWilo-Star-Z NOVADegree of protectionIP 42 (EN 60529)Supply voltageAC 230 V, 50 HzPower input 2 − 4.5 W Downloads Warmwasserzirkulationssystem WZS 100 Manuals PDF Download
