Trebles Pressbox
Trebles Pressbox

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PressBox Mini

The Trebles PressBox Mini is one of the most compact wall-mounted pressurisation units on the market, providing automatic pressure maintenance for sealed heating and chilling systems where space is at a premium.

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  • Description

    Its compact wall-mounted design allows the unit to be installed where a conventional floor-mounted pressurisation unit may not be practical. Despite its small footprint, the PressBox Mini incorporates a digital controller, a 4L tank with an AB air gap, automatic pressure control, and a range of protection and monitoring functions.

    The unit continuously monitors system pressure using a pressure transducer. When pressure falls below the programmed set point, the PressBox Mini automatically tops up the system to restore the required cold fill pressure, helping maintain efficient system operation.

    Applications

    The PressBox Mini is suitable for:-

    • Sealed Heating Systems
    • Sealed Chilling Systems
    Materials
    • Pump Body: RYTON
    • Body Plate: Brass
    • Impeller: Brass
    • Tank: AISI 304 Stainless Steel
    • Fittings: Brass / Nickel-Plated
    • Tubing: Nylon
    • Float Valve: Polypropylene (WRAS-approved)
  • Key Features & Benefits
    • User-Friendly Digital Controller
    • Wall-Mounted Installation
    • Compact Design
    • 4L Tank with AB Air Gap
    • Flood Protection
    • Password Protection
    • Dry Run Protection
    • Programmable Relays for BMS / Alarms
    • Easy Maintenance
  • Downloads

    To download documents, simply click on the file name below:

    Trebles Pressbox Mini Technical Datasheet

Why Choose the Trebles Pressbox Mini?

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One of the Most Compact Units Available

Designed to provide automatic system pressurisation while taking up minimal wall space, making it ideal where installation space is restricted.

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Automatic Pressure Maintenance

The pressure transducer continuously monitors the system and activates the pump when pressure falls below the programmed set point.

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Integrated Backflow Protection

The 4L tank incorporates an AB air gap to provide backflow protection within the unit.

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Simple Digital Control

The digital controller provides straightforward operation while allowing system parameters and alarm functions to be configured.

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Built-In Protection

Flood protection and dry-run protection help safeguard the unit during operation, while password protection prevents unauthorised changes to settings.

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BMS & Alarm Connectivity

Programmable relay outputs provide connection options for BMS systems and external alarm functions.

What Trebles Customers Think

We relied on Trebles expertise to ensure the right products were sourced for our project.

Top workmanship and a professional attitude from a supportive team

Excellent customer service again! You genuinely make my life so much easier

Excellent service and a company I would recommend to anyone in future

Engineers were very professional with an excellent knowledge of their trade

We’re writing to express our sincere thanks to all who help ensure our hospitals are able to run smoothly

Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.

The team at Trebles were great. I really can’t praise them enough.

Not many providers would be able to fully breakdown & rebuild a booster on site