Pressurisation Unit SPU 230 MINI

Pressurisation Units

The Stuart SPU Mini range of digital pressurisation units represent the next generation of automatic pressure maintenance solutions for sealed heating and chiller systems.

Capable of monitoring and maintaining the design fill pressure in sealed systems, Stuart SPU Mini units are exceptionally easy to install and commission and are housed in a compact and robust enclosure suitable for wall mounting.

Units are available with one (duty), or two (duty-standby) solenoid-piston pumps.

Utilising an unique microprocessor controller and pressure transducer, these systems feature an easy to use control system and a volt-free contact boiler interlock connection.

Key Features:

  • Digital control sytem and LED display
  • Automated system pressure maintenance
  • Compact design
  • Wall mounted
  • Outlet configurable for left or right hand side connection with flexible hose (supplied)
  • 3.0 bar pressure
  • 3 litre tank capacity
  • High recovery water tank fill valve 12 ltrs/min @ 1 bar
  • WRAS compliant Category 5 backflow protection, type AB air gap, weir overflow and warning pipe
  • 2 year guarantee
  • Patent application submitted

 

Technical Specification

General
Product code 46720
Guarantee 2 year
System capacity Up to 6000 litres
Mounting Wall mount
Performance
Maximum cold fill pressure 3.0 bar
Maximum inlet pressure 6 bar
Pump
Number 2
Type Solenoid-piston
Duty rating Intermittent (S3)
Break tank
Capacity 3 litres
inlet valve Torbeck (side entry)
Fluid category protection CAT 5 (type AB air gap with weir overflow)
Connections
Mains supply inlet G ½
System outlet 15 mm compressioon
Overflow G ¾ (19/23 mm pipe connection)
Flexible hose - outlet 15 mm x 600 mm
Construction/materials
Front cover High gloss ABS
Break tank Polyethylene
IP rating IPX2
Control system
Pressure monitoring Pressure transducer (0 - 10 bar)
Environmental
Ambient temperture 4 °C - 40 °C
Relative humidity 95% non-condensing
Electrical
Power supply/phase/frequency 230 V a.c. / 1 / 50 Hz
Power consumption 100 Watts
Full load current 0.5 Amps
Physical
Depth 145 mm
Width 293 mm
Height 403 mm
Empty weight 4.2 Kg
Filled weight 7.2 Kg
Approvals CE

Product Variants
Part no Description
46719 SPU 130 MINI
46720 SPU 230 MINI
46721 SPU 135 MIDI
46722 SPU 235 MIDI
46723 SPU 150 MIDI
46724 SPU 250 MIDI
46725 SPU 180 MAXI
46726 SPU 280 MAXI