Quantum Contract – Pressurisation Unit (Discontinued Product)

The use of a mechanical pressure switch makes the Quantum Contract an extremely cost-effective method of monitoring and adjusting system pressure. The unit includes BMS-compatible high and low system pressure alarms as standard, which makes these units an acceptable option for most installations.

Product specification

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O&M Manual for the Contract and Contract Plus Pressurisation Units (Discontinued Model)

Standard Technical Features

  • System Pressure Indication
  • High Quality Bronze Pumps
  • BMS Compatible High and Low Pressure Alarms
  • Boiler/Chiller Interlock
  • Integral Double-Pole Electrical Isolator
  • Audible Alarm with Override
  • Sturdy Powder Coated Steel Case


  • Wall Mounting Kit
  • Various Expansion Vessel Sizes
Max C.F.P 3.0 Bar
Air Gap Type Category 4 AF
Break Tank Capacity 25 litres
Float valve type Class 1
Supply voltage 230/1/50
Full load current 2.5A
VFC Rating 5.0A @ 230V
Boiler/Chiller Relay Rating 5.0A @ 230V
Maximum Inlet Pressure 7 Bar