Service
Energy Audit & OSE
Chilled water plant efficiency measured against achievable benchmarks.
View servicePumping that follows the building, not a fixed curve.
Distributed pumping with the Grundfos MAGNA3 — flow matched to real demand across primary and secondary chilled water circuits.
Up to 75%
Energy saving against a typical installed circulator
−10 to 110°C
Liquid temperature range, independent of ambient
Below EuP
Energy Efficiency Index well under the benchmark level
Zero
Maintenance requirements, and an extremely low life cycle cost
What it is
One circulator for heating, cooling and hot water.
The Grundfos MAGNA3 is a circulator pump with a permanent magnet motor, suited to heating, cooling and domestic hot water circulation — which makes it a workable choice for almost any building project, old or new.
Its efficiency, range and built-in communication capability, plus functions that replace separate system components, make it a fit for owners, engineers and specifiers building high-performance systems. It has no maintenance requirements and an extremely low life cycle cost.
Photography: MAGNA3 installed on a chilled water circuit, plant room or riser
Why distributed
Instead of one central pump sized for the worst case and throttled everywhere else, flow is generated where it is needed. The pump follows demand rather than fighting a balancing valve.
Control
The intelligent modes.
MAGNA3 offers the full range of control modes expected of a state-of-the-art circulator. Two of them are what set it apart, and two more apply on top of whichever mode is selected.
AUTOADAPT
The pump learns the system it is installed in and continuously adjusts its curve to suit it.
FLOWADAPT
Adaptive control with a flow ceiling, so the circuit never over-pumps.
FLOWLIMIT
A hard flow limit, applicable with any MAGNA3 control mode.
Automatic Night Setback
Drops output when the building is unoccupied. Also applicable with any control mode.
Technical characteristics
Range and duty.
MAGNA3 handles liquids down to −10 °C, which suits both tough industrial duties and ground source heat pump systems. Liquid temperature is independent of ambient temperature, so a hot plant room does not narrow the operating envelope.
- Motor
- Permanent magnet
- Liquid temperature
- −10 °C to +110 °C
- Ambient temperature
- 0 °C to +40 °C
- Energy Efficiency Index
- Well below EuP benchmark
- Communication
- Built in
- Scheduled maintenance
- None
Pump sizing is issued per circuit rather than published as a table. Send us the circuit and we will size it.
Applications
Primary and secondary chilled water circuits.
The primary application in YITAC's work is chilled water. The wider MAGNA3 range covers heating and domestic hot water in the same pump family.
- Primary and secondary chilled water circuits.
- Commercial air-conditioning.
- Commercial heating.
- Cooling.
- Domestic hot water systems.
- Domestic heat pump and ground source heat pump systems.
Downloads
Product documentation.
Connected work
Sizing a pump is a consequence of knowing the load.
Our Partners
Grundfos
The manufacturer behind the MAGNA3 range, and how the partnership works.
View partnersSend us the circuit and the load profile.
Talk to an engineer