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Manifold S3 Mixing Unit


The Warmup S3 Mixing Unit is added to the manifold whenever local water temperature regulation or hydraulic separation of the primary circuit is required.

Key Benefits

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3-Way mixing

The unique mixing unit provides full 3-way mixing control making it compatible with all heat sources

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Adjustable bypasses

Featuring integral primary and secondary circuit bypasses, the mixing unit makes commissioning easy without needing to purchase expensive extras

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Grundfos UPM3 circulator

When set to operate in its constant pressure mode, this 70kPa circulator makes setting flow meters simple, with flow rates remaining constant whatever the manifold load is

Maintains Temperature for Wet Floor Heating Systems

The system’s temperature can be limited to any value between 20°C to 60°C, enabling screeds to be commissioned at 25°C in line with British Standards and set to the most efficient temperature thereafter, with an anti-tamper device ensuring it continues to operate efficiently.

The unique mixing unit is designed to complement all heat sources, not just gas condensing boilers, including heat pumps, biomass and solar thermal. Without the inclusion of the Warmup Mixing Unit overheated water due to sterilisation cycles or peak solar gain could otherwise pass overheated water into the floor causing damage.

The inline isolation valve located above the circulator prevents water bypassing circuits during filling and allows the circulator to be easily replaced when necessary. The Manifold S3 Mixing Unit’s advanced design also minimises both mechanical and hydraulic noise and the nickel plated brass construction is both robust and corrosion resistant, complementing the aesthetics of the Warmup S3 manifold.

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