Quantum Q4

The Dutypoint Quantum Q4 is the latest in pumpless digital pressurisation technology for light commercial and residential buildings. It’s a slim, wall-mounted, pumpless top-up pressurisation unit, with a top-up flow rate of up to 14 l/min depending on the mains or boosted mains water pressure. It is designed to be connected directly to a building’s incoming water supply using the included flexible hose. It is there to fill and maintain the pressure of a heating or chilled water system without the need for a pump.

The unit comes with a user-friendly controller that displays all operating and error conditions comprehensibly and conveniently. It features extensive data storage for online and offline analysis, microprocessor control, and self-learning algorithms with a graphical display. It comes with MODBUS RTU and BACnet communication protocols as standard and has its key operating parameters password protected.

Product specification

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Silent, pumpless pressurisation unit
Fills system from empty
For system volumes up to 15,000 litres
Fluid protection Category 4 backflow prevention
Onscreen service reminder (12 months)
Colours: grey (RAL7016) and red (RAL3002)
Password protected
Pressure setting in 0.1 bar increments
Flood protection (runtime limiter and excessive activation logging)
Volt-free contact: common alarm (N/C or N/O), fully programmable for specific alarms, customisable via control unit
Extensive data storage for online or offline analysis
Advanced technology ensures the lowest power consumption, long service life and easy maintenance
Microprocessor control, self-learning with graphical display
Maximum flow rate of 14 l/min
Connects directly to the mains (boosted) water mains, via included flexible hose (L = 400 mm)

Universal connection to drain fits 22 mm copper compression, 32 mm PP push fit and 32 mm PP solvent weld discharge pipe to BS 5254 or BS EN1451
The user-friendly control unit displays all operating and error conditions in a logical and convenient way
Four status LED indicators
System safety valve monitoring
Expansion vessel health monitoring
Leak detection
Usage monitor, logs and counters
MODBUS RTU and BACnet Communication Protocol via RS485
Two 40 cm flexible hoses (for mains and sealed system connection) included for easy installation


System temperature range at point of connection 5°C/90°C
Ambient temperature range 5°C/45°C
Max system pressure 10 bar
Min/max delivery pressure 0.5 – 6 bar
Pressure rating PN 10
Protection class IP44
Relative humidity 95% non-condensing


Cabinet Mild steel CR4 powder coated
Drain manifold PA66 GF30
Check valves POM
Filter POM
Connections In and outlet manifold: DZR Brass
Tundish: PA66 GF30
Pipework Stainless steel braided flexible hose/EPDM/copper
Finish Powder coated
Valves Brass/PTFE


System 15 mm (compressions)
Mains supply 15 mm (compressions)
Drainage (Tundish)* ¾” BSP
*22 mm copper compression, 32 mm PP push fit and 32 mm
PP solvent weld.
Standby Power Consumption (W)
Weight (kg)
Dutypoint Quantum Q4

Installation guides

Dutypoint Quantum Q4 Installation Guide