Circulation pump group Afriso WZS 100 for DHW, model 68 405 00

The Afriso WZS 100 circulation pump group for DHW, model 68 405 00 is a compact assembly designed to provide controlled circulation of domestic hot water (DHW) in residential and commercial hot water systems. It integrates a circulation pump with necessary connections and controls to maintain hot water availability at points of use, helping to reduce waiting time for hot water and minimize water waste. The unit is intended for installation on hot water loops where periodic or continuous circulation is required to ensure efficient delivery of warm water to taps and fixtures.

Advantages

The circulation pump group offers reliable circulation performance, enabling stable hot water flow and temperature maintenance across the system. Its compact design facilitates straightforward mounting on existing piping runs and reduces the footprint compared with separate component assemblies. By providing controlled circulation, the group contributes to lower water consumption and improved user convenience through faster hot water delivery. The assembly is compatible with typical domestic and light commercial DHW systems and supports either continuous or time-controlled operation depending on system configuration.

Suitable for

• Residential hot water circulation loops to reduce water waste and waiting time at taps
• Light commercial buildings where maintained hot water availability is required
• Retrofitting existing DHW systems to improve comfort and operational efficiency

Key specifications

• Application: Domestic hot water (DHW) circulation
• Design: Compact pump group for in-line installation on hot water loops
• Operation modes: Supports continuous or periodic circulation depending on system controls
• Mounting: Inline piping connection suitable for typical residential and light commercial installations
• Function: Maintains hot water availability at points of use, reduces water waste

How to use

Install the circulation pump group on the hot water return or dedicated circulation line following local plumbing regulations and manufacturer installation guidelines. Connect the unit to the system piping and electrical supply as required, ensuring correct flow direction and secure sealing of connections. Configure the system controller or timer, if present, to run the pump continuously or on a periodic schedule based on occupancy patterns and hot water demand. Verify proper operation by checking for stable circulation, correct water temperature at taps, and absence of leaks.

Usage recommendations

For optimal performance, set circulation schedules that match daily hot water usage patterns and avoid unnecessary continuous operation when demand is low. During installation and maintenance, isolate the unit and depressurize the system before disconnecting any piping. Periodically inspect connections and the pump for signs of wear, leaks, or reduced flow and follow professional service intervals recommended for DHW circulation equipment.