Mikrofill MAXI AP280 Twin Pump Pressurisation Unit
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Mikrofill AP280 Twin Pump Pressurisation Unit
The Mikrofill MAXI AP is a cutting-edge pressurisation unit engineered to meet the demands of large domestic, commercial, and industrial applications. It seamlessly maintains pressure in sealed heating systems, chilled water systems, and industrial cooling set-ups.
Microprocessor controlled single or Twin pump pressurisation unit is purpose designed with both the specifier and installer in mind.
Easy to install and commission, it is housed in a compact and robust, floor standing enclosure.
Key Features
- High-Capacity System Support - Designed to manage sealed systems up to 300,000 litres, providing reliable pressure control for large-scale applications.
- Advanced Ai100 System microcontroller - Features an intuitive user interface with simplified feature access, ensuring precise pressure regulation and ease of operation.
- Modbus RTU BMS Interface - Equipped with a Modbus RTU BMS interface and four programmable volt-free relays, allowing seamless integration with building management systems.
- Dual Pump Options - Available in single (duty) or twin (duty-standby) configurations to enhance system redundancy and reliability.
- Cold Fill Pressure - Offers up to 3.9–8.0 bar cold fill pressure, ensuring consistent pressure management across various system demands.
- Digital Control System - Features an LCD graphic display providing real-time monitoring, automated system fill, and top-up for hassle-free operation.
- Leak Detection - via frequency of starts alarm
- 2-Year Warranty
Benefits
- Enhanced System Efficiency - Maintains optimal pressure levels, leading to improved system performance and energy efficiency.
- Reduced Maintenance Costs - Automated pressure management minimises the risk of system failures and the need for frequent maintenance.
- Seamless Integration - The Modbus RTU BMS interface ensures easy integration with existing building management systems, enhancing overall system control.
- User-friendly Operation - The advanced Ai100 microcontroller with an intuitive interface simplifies operation and monitoring.
- Flexible Installation - Compact, floor standing design allows for versatile installation options, catering to various space constraints.
Applications
- Large Domestic and commercial sealed heating systems
- Chilled water systems, refrigeration units and industrial cooling systems
Delivery
All our Pressurisation Units are for delivery by customer offload. This entails the customer to acquire the right manpower and/or machinery to help unload the tank/s from the delivery vehicle.
If you require any specific requirements regarding delivery, please call us before order is placed, where we will try and accommodate this facility for you.
| Material | HDPE / Polyethylene |
|---|
| General | |
| Approvals / Conformity Certification | UKCA/ CE |
| Warranty | 2 Years |
| Connections | |
| Cold Water Inlet | 1/2" BSP M |
| System Outlet | 22 mm Compression |
| Overflow | 20 mm |
| Usable Water Capacity | 18 Litres |
| Inlet Valve and Fill rate | Float Valve |
| Fluid Category | CAT 5 (type AB air gap with weir) |
| Dimensions | |
| Height (not including feet) x Width x Depth (mm) | 805 mm x 505 mm x 405 mm |
| Dry Weight (kg) | 54 |
Important — please read
Please ensure the product you are ordering is the correct size and suitable for the purpose. Special order, bespoke and non-stock tanks are not returnable. If you order a tank and find it is too big, too small, or unsuitable for your requirements, it can be expensive to return. Our cancellation & returns policy explains this in more detail — see Terms & Conditions.
Delivery charges
Our shipping costs cover most of the UK. However, parts of England, the Scottish Highlands and Islands (including areas north of the Glasgow / Edinburgh border), Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly, Northern Ireland and the Republic of Ireland may cost more.
Please call before ordering if the delivery postcode is listed below. There may be additional shipping costs.
- AB
- BT
- CA
- CT
- DD
- DG
- EH
- FK
- G
- GY
- IM
- IV
- JE
- KA
- KW
- KY
- LD
- LL
- ML
- PA
- PH
- PO 30–41 Isle of Wight
- SA
- SY
- TD
- TN
- TR
- ZE
- Southern Ireland
Looking to avoid shipping charges?
All our tanks are available for collection ex works. Our suppliers are based all over the UK — please call if you wish to collect.
Overseas orders
International orders are welcome. Payment is by IBAN / SWIFT / BIC, MoneyGram and letters of credit. We regret that credit cards are not accepted for international orders.
A purchase order is required; we will then create a pro-forma invoice, and tanks are ordered on clearance of funds.
If you require additional export documentation — for example a Certificate of Origin, or commercial invoices certified by the Chamber of Commerce — you must notify us before completion of your order, as we will have to invoice cost and admin charges to the order.
Please call if you have any questions: +44 (0)1643 703358
Offloading
Unless a HIAB delivery has been booked at additional cost, it is the customer’s responsibility to offload with suitable equipment on the day of delivery. A failed delivery may result in additional charges.
We recommend that installers, plant hire and installation materials — excavators, aggregates and so on — are not booked until you are in receipt of the goods. Tanks Direct cannot be held responsible for costs incurred due to unforeseen delays; please see our terms for more details.
Any questions about your delivery? Contact the Sales Team on 01643 703358.
Looking to return an item?
If you wish to return goods, please complete the form on this page to provide further information.
Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.
Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.
Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.
Please click here to request a return of one of our products.
Talk to a
specialist
Sizing, regulations, installation. Our team has been answering these questions for over 25 years.
Why Tanks-Direct
22 years. 100,000+ tanks. Specialists, not generalists.
Nationwide delivery
GB and Northern Ireland covered. HIAB and crane offload available. Highlands and Islands quoted on request.
WRAS & BS EN compliant
Every potable tank is independently certified. Documentation supplied with each delivery.
Best-price guarantee
4.6/5 on Feefo from 1272 verified reviews. We price-match any genuine like-for-like quote.
Specialist advice
Trade-grade phone and email support, Mon-Fri 8am-5pm. Site visits for orders over £2,500.