Blending Valve Pump Pack, UPM3 Auto: Pump sets itself to the system (video guide)

A pre-assembled blending valve unit that bolts onto the manifold. The wax-capsule valve holds the floor at 20 to 55°C, with no wiring. The Grundfos UPM3 Auto uses AUTOADAPT to set itself to the system, up to 7m head.

Here is how it fits and what to check, with the data sheet and install manual to download below.

Key facts

• Bolts onto the manifold
• Wax-capsule valve, 20 to 55°C, no wiring
• Grundfos UPM3 Auto, AUTOADAPT, up to 7m head
• Kvs 3.4, up to about 18kW or 220m² of floor
• 10 bar static, 95°C max
• 1" swivel joints to manifold, ¾" primaries

How to fit it

1. Set up for the right of the manifold, can be turned for the left
2. Screw the 1" swivel joints in evenly, don't overtighten
3. Primary flow to H, return to R, ball valves on both
4. Fill from the flow bar, vent and set the dial
5. Check joints (nuts can loosen in transit) and pressure test
6. Check the gauge against the dial with a digital thermometer

Buy it

The UFH Manifold Blending Valve Pump Pack 20 to 55°C with Grundfos UPM3 Auto is available from MaxHeatUFH. Order by 12pm on a working day for next working day UK delivery. Trade customers see their trade price when logged in.

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